Wireless telephone distribution system with time and space diversity transmission
Abstract
(57) [Summary] The wireless communication system combines time diversity and space diversity to reduce fading and simplify receiver configuration. More specifically, data packets carrying digital telephone traffic are transmitted from three different antennas at three different time points. Therefore, the mobile station subscriber device receiver receives the same data packet from three different antennas at three different time points and uses the best data packet or a combination of these data packets to reduce the effects of fading. The forwarding station receives a time division multiple access (TDMA) signal from the base station carrying the telephone data packet to form three data packet iterations at spatially distinct antenna locations. The transfer station also modulates a code division multiple access (CDMA) sequence using TDMA signals that form a link between the mobile station subscriber and the transfer station. Therefore, each data packet received by the transfer station is transmitted to the mobile station subscriber via the CDMA link at three different time points. In one embodiment, each transmitting station comprises three space diversity antennas. The second embodiment uses three transfer stations, each with one spatially separate antenna. Time division multiplexing and code division multiplexing signals transmitted from the space diversity antenna enable subscriber station position measurement using the same signal for main telephone data communication. In particular, the subscriber station receiver uses the absolute and relative arrival times of the three repetitive data packets to calculate the respective distances to the mobile subscriber station or the three transmitting antennas. Since these transmitting antennas are in known fixed positions, the position of the receiver is calculated.

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Projected expiry passed 31 August 2015, 11.1 years ago.
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138 claims: 138 independent, 0 dependent
- 1【特許請求の範囲】 1.互いに隔てて設けられた第1及び第2のアンテナを含む無線通信システムに おいて、デジタルデータを含むデータパケットを、受信データパケットを形成す るように送信機から受信機に伝達する方法であって、 第1の送信データパケットを形成するように前記第1のアンテナから前記デー タパケットを送信する過程と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記第2のアンテナから前記データパケットを送信する過程と、 前記第1及び第2の送信データパケットを前記受信機で順次受信して第1及び 第2の受信データパケットをそれぞれ形成する過程と、 前記受信機において前記デジタルデータを形成するように前記第1及び第2の 受信データパケットの少なくとも一つを選択する過程と を含む方法。
- 2特性波長を持つ搬送波周波数をさらに含み、前記第1及び第2のアンテナを 前記波長の4分の1から前記波長の10倍の距離だけ互いに隔てて配置した請求 項1記載の方法。
- 3前記第1及び第2の受信データパケットの少なくとも一つを選択して前記受 信機において前記デジタルデータを形成する過程が受信した前記第1及び第2の 受信データパケットのエネルギーを最大値手法で結合する過程を含む請求項1記 載の方法。
- 4前記受信した前記第1及び第2の受信データパケットのエネルギーを最大値 手法で結合する過程が前記受信した前記第1及び第2のデータパケットのエネル ギーを最大尤度コンバイナで結合する請求項3記載の方法。
- 5互いに隔てて設けられた第1、第2及び第3のアンテナを含む無線通信シス テムにおいて、デジタルデータを含むデータパケットを、受信データパケットを 形成するように送信機から受信機に伝達する方法であって、 第1の送信データパケットを形成するように前記第1のアンテナから前記デー タパケットを送信する過程と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記第2のアンテナから前記データパケットを送信する過程と、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記第3のアンテナから前記データパケットを送信する過程と、 前記第1、第2及び第3の送信データパケットを前記受信機で順次受信して第 1、第2及び第3の受信データパケットをそれぞれ形成する過程と、 前記受信機において前記デジタルデータを形成するように前記第1、第2及び 第3の受信データパケットの少なくとも一つを選択する過程と を含む方法。
- 6特性波長を持つ搬送波周波数をさらに含み、前記第1、第2及び第3のアン テナを前記波長の4分の1から前記波長の10倍の距離だけ互いに隔てて配置し た請求項5記載の方法。
- 7前記第1、第2及び第3の受信データパケットのうち少なくとも一つを選択 して前記受信機において前記デジタルデータを形成する過程が受信した前記第1 、第2及び第3の受信データパケットのエネルギーを最大値手法で結合する過程 を含む請求項5記載の方法。
- 8前記受信した前記第1、第2及び第3の受信データパケットのエネルギーを 最大値手法で結合する過程が前記受信した前記第1、第2及び第3のデータパケ ットのエネルギーを最大尤度コンバイナで結合する請求項7記載の方法。
- 9互いに隔てて設けられた第1、第2及び第3のアンテナを含み、受信データ パケットを形成するようにデータパケットを送信機から受信機に伝達する無線通 信システムにおいて前記受信機の位置を算定する方法であって、 第1の送信データパケットを形成するように前記第1のアンテナから前記デー タパケットを送信する過程と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記第2のアンテナから前記データパケットを送信する過程と、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記第3のアンテナから前記データパケットを送信する過程と、 前記第1、第2及び第3の送信データパケットを前記受信機で順次受信して第 1、第2及び第3の受信データパケットをそれぞれ形成する過程と、 前記受信機において前記デジタルデータを形成するように前記第1及び第2の 受信データパケットの少なくとも一つを選択する過程と、 前記受信機への前記第1、第2及び第3の送信データパケットの各到達時間を 測定する過程と、前記第1、第2及び第3の送信データパケットの前記各到達時 間測定値から前記受信機の位置を計算する過程と を含む方法。
- 10前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記受信機の位置を計算する過程が、前記第1、第2及び第3のアンテナのう ち少なくとも一つまでの距離を計算する過程を含む請求項9記載の無線通信シス テム。
- 11前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記受信機の位置を計算する過程が、前記受信機から前記第1のアンテナおよ び前記第2のアンテナまでの間の距離差を計算する過程を含む請求項9記載の無 線通信システム。
- 12前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記受信機の位置を計算する過程が、前記受信機から前記第2のアンテナおよ び前記第3のアンテナまでの間の距離差を計算する過程を含む請求項11記載の 無線通信システム。
- 13前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記受信機の位置を計算する過程が、前記第1のアンテナまでの第1の距離を 計算する過程と、前記第2のアンテナまでの第2の距離を計算する過程と、前記 第3のアンテナまでの第3の距離を計算する過程とを含み、さらに、前記受信機 の位置を前記各第1、第2及び第3の距離における前記各第1、第2及び第3の アンテナからの三つの一定距離曲線の交点として算出する過程を含む請求項9記 載の無線通信システム。
- 14データパケットを基地局から加入者局に伝達する無線通信システムであっ て、前記基地局と前記加入者局との間に設けられ前記基地局からの前記データパ ケットを受信するとともに前記データパケットを前記加入者局に再送信する転送 局を有し、前記転送局が転送局受信機と第1及び第2の転送局送信機と互いに隔 てて設けられた第1及び第2のアンテナとを含む無線通信システムにおいて、前 記転送局における通信方法が、 前記転送局において前記データパケットを受信する過程と、 第1の送信データパケットを形成するように前記第1のアンテナから前記デー タパケットを再送信する過程と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記第2のアンテナから前記データパケットを再送信する過程と を含む方法。
- 15第3の転送局送信機及び第3のアンテナをさらに有し、前記通信方法が、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記第3のアンテナから前記データパケットを再送信する過程をさらに含む 請求項14記載の方法。
- 16前記データパケットを前記基地局から前記転送局に伝達し、前記データパ ケットを前記転送局から前記加入者局へ符号分割多重信号によって前記第1及び 第2のアンテナからそれぞれ再送信し、前記符号分割多重信号を前記第1の送信 データパケット及び第2の送信データパケットを含む時分割多重化した第1及び 第2の時間スロットに分割してある請求項15記載の方法。
- 17前記データパケットを前記転送局から前記加入者局へ符号分割多重信号に よって再送信し、前記符号分割多重信号を前記第3の送信データパケットを含む 第3の時分割多重化した時間スロットに分割してある請求項16記載の方法。
- 18前記データパケットを前記基地局から前記転送局に時分割多重無線通信リ ンクによって伝達する請求項16記載の方法。
- 19前記データパケットを前記基地局から前記転送局に広帯域ケーブルテレビ ジョンリンクによって伝達する請求項16記載の方法。
- 20前記データパケットを前記基地局から前記転送局に光ファイバーケーブル リンクによって伝達する請求項16記載の方法。
- 21前記データパケットを前記基地局から前記転送局に対利得モジュール電話 リンクによって伝達する請求項16記載の方法。
- 22前記データパケットを前記基地局から前記転送局に撚り対線ループ電話リ ンクによって伝達する請求項16記載の方法。
- 23特性波長を持つ搬送波周波数をさらに含み、前記第1及び第2のアンテナ を前記波長の4分の1から前記波長の10倍の距離だけ互いに隔てて配置した請 求項14記載の方法。
- 24データパケットを基地局から加入者局に伝達する無線通信システムであっ て、前記基地局と前記加入者局との間に設けられ前記基地局からの前記データパ ケットを受信するとともに前記データパケットの前記加入者局への再送信を第1 の送信データパケットを形成するように前記データパケットを第1のアンテナか ら前記加入者局に再送信し前記第1の送信データパケットの後に第2の送信デー タパケットを形成するように前記データパケットを第2のアンテナから前記加入 者局に再送信することによって行う少なくとも一つ転送局を有する無線通信シス テムおいて、前記データパケットを前記加入者局で受信する方法であって、 前記加入者局受信機で前記第1の送信データパケットを受信して前記第1の受 信データパケットを形成する過程と、 前記加入者局受信機で前記第1の送信データパケットの受信ののち前記第2の 送信データパケットを受信して前記第2の受信データパケットを形成する過程と 、 前記受信機で前記受信データパケットを形成するように前記第1及び第2の受 信データパケットの少なくとも一つを選択する過程と を含む方法。
- 25最小ビット誤り率を有する第1及び第2のデータパケットに一部基づき前 記第1及び第2のデータパケットの何れか一つを選択する過程をさらに含む請求 項24記載の方法。
- 26最小ビット位相歪を有する第1及び第2のデータパケットに一部基づき前 記第1及び第2のデータパケットの何れか一つを選択する過程をさらに含む請求 項24記載の方法。
- 27最大の信号対雑音比を有する第1及び第2のデータパケットに一部基づき 前記第1及び第2のデータパケットの何れか一つを選択する過程をさらに含む請 求項24記載の方法。
- 28前記データパケットが時分割多重信号によって前記基地局から前記転送局 に伝達され、前記データパケットが前記転送局から前記加入者局へ符号分割多重 信号によって再送信され、前記符号分割多重信号が前記第1の送信データパケッ ト及び前記第2の送信データパケットをそれぞれ含む第1及び第2の時間スロッ トに分割されている請求項24記載の方法。
- 29前記第2の送信データパケットの後に第3の送信データパケットを形成す るように前記データパケットを第3のアンテナで再送信する過程をさらに含み、 前記符号分割多重信号が前記第3の送信データパケットを含む第3の時間スロッ トにさらに分割されている請求項28記載の方法。
- 30前記加入者局がアンテナと送信機とをさらに含み、前記加入者局における 方法が前記アンテナを前記データパケット受信用受信機と前記送信機との間で切 り換える過程をさらに含む請求項28記載の方法。
- 31前記無線通信システムが前記第2の送信データパケットの後に第3の送信 データパケットを形成するように前記データパケットを再送信する過程をさらに 含み、前記加入者局受信機における前記データパケットの受信方法が、 前記加入者局受信機で前記第2の送信データパケットの受信ののち前記第3の 送信データパケットを受信して前記第3の受信データパケットを形成する過程と 、 前記受信機で前記受信データパケットを形成するように前記第1、第2及び第 3の受信データパケットの少なくとも一つを選択する過程と、 前記加入者局で前記第1、第2及び第3の送信データパケットの各到達時間を 測定する過程と、 前記第1、第2及び第3の送信データパケットの前記各到達時間測定値から前 記加入者局の位置を計算する過程と をさらに含む請求項24記載の方法。
- 32前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記加入者局の位置を計算する過程が、前記第1、第2及び第3のアンテナの 少なくとも一つまでの距離を計算する過程を含む請求項31記載の無線通信シス テム。
- 33前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記加入者局の位置を計算する過程が、前記受信機から前記第1及び第2のア ンテナまでの距離差を計算する過程を含む請求項31記載の無線通信システム。
- 34前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記加入者局の位置を計算する過程が、前記受信機から前記第2及び第3のア ンテナまでの距離差を計算する過程を含む請求項33記載の無線通信システム。
- 35前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記加入者局の位置を計算する過程が、前記第1のアンテナまでの第1の距離 を計算する過程と、前記第2のアンテナまでの第2の距離を計算する過程と、前 記第3のアンテナまでの第3の距離を計算する過程とを含み、さらに、前記受信 機の位置をそれぞれ前記第1、第2及び第3の距離における前記第1、第2及び 第3のアンテナからの三つの一定距離曲線の交点として算出する過程を含む請求 項31記載の無線通信システム。
- 36前記加入者局の前記位置を表すデータを含む位置ファイルを前記加入者局 から前記基地局に送信する過程を含む請求項31記載の無線通信システム。
- 37前記無線通信システムが前記第2の送信データパケットの後に第3の送信 データパケットを形成するように前記データパケットを第3のアンテナで再送信 する過程をさらに含み、前記加入者局受信機で前記データパケットを受信する方 法が、 前記加入者局受信機で前記第2の送信データパケットの受信ののち前記第3の 送信データパケットを受信して前記第3の受信データパケットを形成する過程と 、 前記受信機で前記受信データパケットを形成するように前記第1、第2及び第 3の受信データパケットの少なくとも一つを選択する過程と、 前記加入者局で前記第1、第2及び第3の送信データパケットの各到達時間を 測定する過程と、 前記第1、第2及び第3の送信データパケットの前記各到達時間測定値から前 記加入者局の位置を表すデータを含む位置ファイルを計算する過程と、 前記加入者局で前記第1、第2及び第3の送信データパケットの前記各到達時 間測定値に対応するデータを含む前記位置ファイルの内容を前記加入者局から前 記基地局に送信する過程と をさらに含む請求項24記載の方法。
- 38前記基地局が前記加入者局での前記第1、第2及び第2の送信データパケ ットの前記各到着時間測定値に対応するデータを含む前記位置ファイルの内容を 受信し、前記加入者局の位置を計算し、前記加入者局位置計算値を前記加入者局 へ送信する請求項37記載の方法であって、前記加入者局における方法が前記加 入者局位置計算値を受信する過程をさらに含む請求項37記載の方法。
- 39前記位置ファイルが、前記第1、第2及び第3のアンテナの一つまでの位 置を表すデータと、前記第1、第2及び第3のアンテナの一つと残りの二つとの 間の受信データパケットの到達時間のそれぞれの差を表すデータとを含む請求項 37記載の方法。
- 40前記位置ファイルデータがダイアル呼び出しにより公衆通信用交換網経由 で前記基地局からアクセスされる請求項37記載の方法。
- 41前記位置ファイルデータがパスワードによってアクセスされると共に秘匿 化形式で前記基地局に送信される請求項37記載の方法。
- 42前記位置ファイルデータが前記加入者局における開始表示に応答して前記 基地局に送信される請求項37記載の方法。
- 43データパケットを基地局から加入者局に伝達する無線通信システムであっ て、互いに隔てて配置された第1及び第2の転送局を有し、前記第1及び第2の 転送局の各々が基地局からのデータパケットの受信と前記データパケットの加入 者局への再送信に適合しており、前記第1の転送局が第1の転送局受信機と第1 の転送局送信機と第1の転送局アンテナとを含み、前記第2の転送局が第2の転 送局受信機と第2の転送局送信機と第2の転送局アンテナとを含む無線通信シス テムにおける通信方法であって、 前記データパケットを前記第1及び第2の転送局で受信する過程と、 第1の送信データパケットを形成するように前記データパケットを前記第1の 転送局アンテナから再送信する過程と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記データパケットを前記第2の転送局アンテナから再送信する過程と を含む方法。
- 44第3の転送局受信機、第3の転送局送信機及び第3の転送局アンテナを有 する第3の転送局をさらに含む請求項43記載の無線通信システムにおける通信 方法であって、 前記データパケットを前記第3の転送局で受信する過程と、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記データパケットを前記第3の転送局アンテナから再送信する過程と をさらに含む方法。
- 45前記データパケットを前記基地局から前記転送局の各々へ伝達し、前記デ ータパケットを前記転送局の各々から前記加入者局に符号分割多重信号により再 送信し、前記符号分割多重信号を前記第1の送信データパケットおよび前記第2 の送信データパケットをそれぞれ含む時分割多重化した第1及び第2の時間スロ ットにそれぞれ分割した請求項44記載の方法。
- 46前記符号分割多重信号を前記第3の送信データパケットを含む第3の時分 割多重時間スロットに分割する請求項45記載の方法。
- 47前記データパケットを前記基地局から前記転送局に時分割多重デジタル無 線通信リンクによって伝達する請求項45記載の方法。
- 48前記データパケットを前記基地局から前記転送局に広帯域ケーブルテレビ ジョンリンクによって伝達する請求項45記載の方法。
- 49前記データパケットを前記基地局から前記転送局に光ファイバーケーブル リンクによって伝達する請求項45記載の方法。
- 50前記データパケットを前記基地局から前記転送局に対利得モジュール電話 リンクによって伝達する請求項45記載の方法。
- 51前記データパケットを前記基地局から前記転送局に撚り対線ループ電話リ ンクによって伝達する請求項45記載の方法。
- 52データパケットを基地局から加入者局へ放送周波数で無線伝送する無線通 信システムであって、互いに隔てて配置された複数のアンテナに広帯域伝送ケー ブルによって結合したヘッドエンドを有する広帯域ケーブル分配システムをさら に含むとともに、前記ケーブル分配ヘッドエンドにおいて少なくとも一つの中央 に配置された転送局を含み、前記転送局が前記基地局からの前記データパケット の受信と前記データパケットの前記広帯域伝送ケーブルによる前記加入者局への 再送信とに適合し、前記広帯域ケーブル分配システムが前記広帯域ケーブル沿い で互いに隔てられた第1及び第2の位置にそれぞれ設けた第1及び第2の遠隔設 置アンテナをさらに含む無線通信システムにおける通信方法であって、 前記データパケットを前記中央配置転送局で受信する過程と、 前記データパケットを前記中央配置転送局から前記第1の遠隔設置アンテナに 前記広帯域伝送ケーブル経由で第1のケーブル搬送波周波数で送信する過程と、 前記データパケットを前記第1の遠隔設置アンテナで前記第1のケーブル搬送 波周波数で受信する過程と、 第1の送信データパケットを形成するように前記データパケットを前記第1の 遠隔設置アンテナから前記無線伝送用放送周波数で再送信する過程と、 前記データパケットを前記中央配置転送局から前記第2の遠隔設置アンテナに 前記広帯域伝送ケーブル経由で第2のケーブル搬送波周波数で送信する過程と、 前記データパケットを前記第2の遠隔設置アンテナで前記第2のケーブル搬送 波周波数で受信する過程と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記データパケットを前記第2の遠隔設置アンテナから前記無線伝送用放送 周波数で再送信する過程と を含む方法。
- 53第3の遠隔設置アンテナをさらに含む請求項52記載の無線通信システム における通信方法であって、 前記データパケットを前記中央配置転送局から前記第3の遠隔設置アンテナに 前記広帯域伝送ケーブル経由で第3のケーブル搬送波周波数で送信する過程と、 前記データパケットを前記第3の遠隔設置アンテナで前記第3のケーブル搬送 波周波数で受信する過程と、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記データパケットを前記第3の遠隔設置アンテナから前記無線伝送用放送 周波数で再送信する過程と をさらに含む方法。
- 54前記データパケットを前記基地局から前記転送局の各々に伝達し、前記デ ータパケットを前記転送局の各々から前記第1及び第2の遠隔設置アンテナに符 号分割多重信号により再送信し、前記符号分割多重信号を前記第1の送信データ パケットおよび前記第2の送信データパケットをそれぞれ含む時分割多重化した 第1及び第2の時間スロットにそれぞれ分割してある請求項53記載の方法。
- 55前記データパケットを前記転送局から前記第3の遠隔設置アンテナに符号 分割多重信号により再送信し、前記符号分割多重信号を前記第3の送信データパ ケットを含む第3の時分割多重化した時間スロットに分割してある請求項54記 載の方法。
- 56前記システムが複数の前記中央配置転送局を有する請求項54記載の方法 。
- 57前記広帯域伝送ケーブルが同軸ケーブルである請求項54記載の方法。
- 58前記広帯域伝送ケーブルが光ファイバーケーブルリンクである請求項54 記載の方法。
- 59互いに隔てて設けられた第1及び第2のアンテナを含む無線通信システム において、デジタルデータなどのデータパケットを受信データパケット形成用に 送信機から受信機に伝達する装置であって、 第1の送信データパケットを形成するように前記データパケットを前記第1の アンテナから送信する手段と、 前記第1送信データパケットの後に第2の送信データパケットを形成するよう に前記データパケットを前記第2のアンテナから送信する手段と、 前記第1及び第2の送信データパケットを前記受信機で順次受信し、第1及び 第2の受信データパケットを形成する手段と、 前記受信機において前記デジタルデータを形成するように前記第1及び第2の 受信データパケットの少なくとも一つを選択する手段と、 を含む装置。
- 60特性波長を持つ搬送波周波数をさらに含み、前記第1及び第2のアンテナ を前記波長の4分の1から前記波長の10倍の距離だけ互いに隔てて配置した請 求項59記載の装置。
- 61前記デジタルデータを前記受信機で形成するように前記第1及び第2の受 信データパケットの少なくとも一つを選択する前記手段が、前記受信した第1及 び第2の受信データパケットのエネルギーを最大値手法で結合する手段を含む請 求項59記載の装置。
- 62前記受信した前記第1及び第2の受信データパケットのエネルギーを最大 値手法で結合する手段が前記受信した前記第1及び第2のデータパケットのエネ ルギーを最大尤度コンバイナで結合する手段である請求項61記載の装置。
- 63互いに隔てて設けられた第1、第2及び第3のアンテナを含む無線通信シ ステムにおいてデジタルデータなどのデータパケットを受信データパケット形成 用に送信機から受信機に伝達する装置であって、 第1の送信データパケットを形成するように前記第1のアンテナから前記デー タパケットを送信する手段と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記第2のアンテナから前記データパケットを送信する手段と、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記第3のアンテナから前記データパケットを送信する手段と、 前記第1、第2及び第3の送信データパケットを前記受信機で順次受信して第 1、第2及び第3の受信データパケットをそれぞれ形成する手段と、 前記受信機において前記デジタルデータを形成するように前記第1、第2及び 第3の受信データパケットの少なくとも一つを選択する手段と を含む装置。
- 64特性波長を持つ搬送波周波数をさらに含み、前記第1、第2及び第3のア ンテナを前記波長の4分の1から前記波長の10倍の距離だけ互いに隔てて配置 した請求項63記載の装置。
- 65前記デジタルデータを前記受信機で形成するように前記第1、第2及び第 3の受信データパケットの少なくとも一つを選択する前記手段が、前記第1、第 2及び第3の受信データパケットのエネルギーを最大値手法で結合する手段を含 む請求項63記載の装置。
- 66前記受信した前記第1、第2及び第3の受信データパケットのエネルギー を最大値手法で結合する前記手段が前記受信した前記第1、第2及び第3のデー タパケットのエネルギーを最大尤度コンバイナで結合する手段である請求項65 記載の装置。
- 67互いに隔てて設けられた第1、第2及び第3のアンテナを含み受信データ パケットを形成するようにデータパケットを送信機から受信機に伝達する無線通 信システムにおいて前記受信機の位置を算定するための装置であって、 第1の送信データパケットを形成するように前記第1のアンテナから前記デー タパケットを送信する手段と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記第2のアンテナから前記データパケットを送信する手段と、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記第3のアンテナから前記データパケットを送信する手段と、 前記第1、第2及び第3の送信データパケットを前記受信機で順次受信して第 1、第2及び第3の受信データパケットをそれぞれ形成する手段と、 前記受信機において前記デジタルデータを形成するように前記第1及び第2の 受信データパケットの少なくとも一つを選択する手段と、 前記受信機で前記第1、第2及び第3の送信データパケットの各到達時間を測 定する手段と、 前記第1、第2及び第3の送信データパケットの前記各到達時間測定値から前 記受信機の位置を計算する手段と を含む装置。
- 68前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記受信機の位置を計算する手段が、前記第1、第2及び第3のアンテナの少 なくとも一つまでの距離を計算する手段を含む請求項67記載の装置。
- 69前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記受信機の位置を計算する手段が、前記受信機から前記第1のアンテナおよ び前記第2のアンテナまでの距離差を計算する手段を含む請求項67記載の装置 。
- 70前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記受信機の位置を計算する手段が、前記受信機から前記第2のアンテナおよ び前記第3のアンテナまでの距離差を計算する手段を含む請求項69記載の無線 通信システム。
- 71前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記受信機の位置を計算する手段が、前記第1のアンテナまでの第1の距離を 計算する手段と、前記第2のアンテナまでの第2の距離を計算する手段と、前記 第3のアンテナまでの第3の距離を計算する手段とを含み、さらに、前記受信機 の位置を前記各第1、第2及び第3の距離における前記各第1、第2及び第3の アンテナからの三つの一定距離曲線の交点として算出する手段を含む請求項67 記載の装置。
- 72データパケットを基地局から加入者局に伝達する無線通信システムであっ て、前記基地局と前記加入者局との間に設けられ前記基地局から前記データパケ ットを受信するとともに前記データパケットを前記加入者局に再送信する転送局 を有し、前記転送局が転送局受信機、第1及び第2の転送局送信機、及び互いに 隔てて設けられた第1及び第2のアンテナを含む無線通信システムにおいて前記 転送局の装置が、 前記転送局において前記データパケットを受信する手段と、 第1の送信データパケットを形成するように前記第1のアンテナから前記デー タパケットを再送信する手段と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記第2のアンテナから前記データパケットを再送信する手段と を含む装置。
- 73第3の転送局送信機及び第3のアンテナをさらに有する請求項72記載の 装置であって、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記第3のアンテナから前記データパケットを再送信する手段を含む装置。
- 74前記データパケットを前記基地局から前記転送局に伝達し、前記データパ ケットを前記転送局から前記加入者局へ符号分割多重信号によって前記第1及び 第2のアンテナからそれぞれ再送信し、前記符号分割多重信号を前記第1の送信 データパケット及び第2の送信データパケットを含む時分割多重化した第1及び 第2の時間スロットに分割してある請求項73記載の装置。
- 75前記データパケットを前記転送局から前記加入者局へ符号分割多重信号に よって再送信し、前記符号分割多重信号を前記第3の送信データパケットを含む 第3の時分割多重時間スロットに分割してある請求項74記載の装置。
- 76前記データパケットを前記基地局から前記転送局に時分割多重デジタル無 線通信リンクによって伝達する請求項74記載の装置。
- 77前記データパケットを前記基地局から前記転送局に広帯域ケーブルテレビ ジョンリンクによって伝達する請求項74記載の装置。
- 78前記データパケットを前記基地局から前記転送局に光ファイバーケーブル リンクによって伝達する請求項74記載の装置。
- 79前記データパケットを前記基地局から前記転送局に対利得モジュール電話 リンクによって伝達する請求項74記載の装置。
- 80前記データパケットを前記基地局から前記転送局に撚り対線ループ電話リ ンクによって伝達する請求項74記載の装置。
- 81特性波長を持つ搬送波周波数をさらに含み、前記第1及び第2のアンテナ を前記波長の4分の1から前記波長の10倍の距離だけ互いに隔てて配置した請 求項72記載の装置。
- 82データパケットを基地局から加入者局に伝達する無線通信システムであっ て、前記基地局と前記加入者局との間に設けられ前記基地局からの前記データパ ケットを受信するとともに前記データパケットの前記加入者局への再送信を第1 の送信データパケットを形成するように前記データパケットを第1のアンテナか ら前記加入者局に再送信し前記第1の送信データパケットの後に第2の送信デー タパケットを形成するように前記データパケットを第2のアンテナから前記加入 者局に再送信することによって行う少なくとも一つ転送局を有する無線通信シス テムにおいて、前記データパケットを受信する前記加入者局の受信機内の装置で あって、 前記加入者局受信機で前記第1の送信データパケットを受信して前記第1の受 信データパケットを形成する手段と、 前記加入者局受信機で前記第1のデータパケットの受信ののち前記第2の送信 データパケットを受信して前記第2の受信データパケットを形成する手段と、 前記受信機において前記受信データパケットを形成するように前記第1及び第 2の受信データパケットの少なくとも一つを選択する手段と を含む装置。
- 83最小ビット誤り率を有する第1及び第2のデータパケットに一部基づき前 記第1及び第2のデータパケットの何れか一つを選択する手段をさらに有する請 求項82記載の装置。
- 84最小ビット位相歪を有する第1及び第2のデータパケットに一部基づき前 記第1及び第2のデータパケットの何れか一つを選択する手段をさらに有する請 求項82記載の装置。
- 85最大の信号対雑音比を有する第1及び第2のデータパケットに一部基づき 前記第1及び第2のデータパケットの何れか一つを選択する手段をさらに有する 請求項82記載の装置。
- 86前記データパケットを時分割多重信号によって前記基地局から前記転送局 に伝達し、前記データパケットを前記転送局から前記加入者局へ符号分割多重信 号によって再送信し、前記符号分割多重信号を前記第1の送信データパケット及 び前記第2の送信データパケットをそれぞれ含む第1及び第2の時間スロットに 分割してある請求項82記載の装置。
- 87前記第2の送信データパケットの後に第3の送信データパケットを形成す るように前記データパケットを第3のアンテナで再送信する手段をさらに含み、 前記符号分割多重信号を前記第3の送信データパケットを含む第3の時間スロッ トにさらに分割してある請求項86記載の装置。
- 88前記加入者局がアンテナと送信機とをさらに含み、前記加入者局装置が前 記アンテナを前記データパケットを受信するための受信機と前記送信機との間で 切り換える手段をさらに含む請求項86記載の装置。
- 89前記第2の送信データパケットの後に第3の送信データパケットを形成す るように第3のアンテナで前記データパケットを再送信する手段をさらに含み、 前記加入者局受信機内の前記データパケットを受信するための前記装置が、 前記加入者局受信機で前記第2の送信データパケットの受信ののち後前記第3 の送信データパケットを受信して前記第3の受信データパケットを形成する手段 と、 前記受信機で前記受信データパケットを形成するように前記第1、第2及び第 3の受信データパケットの少なくとも一つを選択する手段と、 前記加入者局で前記第1、第2及び第3の送信データパケットの各到達時間を 測定する手段と、 前記第1、第2及び第3の送信データパケットの前記各到達時間測定値から前 記加入者局の位置を計算する手段と をさらに含む請求項82記載の装置。
- 90前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記加入者局の位置を計算する手段が、前記第1、第2及び第3のアンテナの 少なくとも一つまでの距離を計算する手段を含む請求項89記載の装置。
- 91前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記加入者局の位置を計算する手段が、前記受信機から前記第1のアンテナお よび前記第2のアンテナまでの距離差を計算する手段を有する請求項89記載の 装置。
- 92前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記加入者局の位置を計算する手段が、前記受信機から前記第2のアンテナお よび前記第3のアンテナまでの距離差を計算する手段を有する請求項91記載の 装置。
- 93前記第1、第2及び第3の送信データパケットの前記各到達時間測定値か ら前記加入者局の位置を計算する手段が、前記第1のアンテナまでの第1の距離 を計算する手段と、前記第2のアンテナまでの第2の距離を計算する手段と、前 記第3のアンテナまでの第3の距離を計算する手段とを含み、さらに、前記受信 機の位置を前記各第1、第2及び第3の距離における前記各第1、第2及び第3 のアンテナからの三つの一定距離曲線の交点として算出する手段を含む請求項8 9記載の装置。
- 94前記加入者局の前記位置を表すデータを含む位置ファイルを前記加入者局 から前記基地局に送信する手段をさらに含む請求項89記載の装置。
- 95前記第2の送信データパケットの後に第3の送信データパケットを形成す るように前記データパケットを第3のアンテナで再送信する手段を前記システム がさらに含み、前記加入者局受信機内の前記データパケットを受信する装置が、 前記加入者局受信機で前記第2の送信データパケットの受信ののち前記第3の 送信データパケットを受信して前記第3の受信デーダパケットを形成する手段と 、 前記受信機で前記受信データパケットを形成するように前記第1、第2及び第 3の受信データパケットの少なくとも一つを選択する手段と、 前記加入者局での前記第1、第2及び第3の送信データパケットの各到達時間 を測定する手段と、 前記第1、第2及び第3の送信データパケットの前記各到達時間測定値から前 記加入者局の位置を表すデータを含む位置ファイルを計算する手段と、 前記加入者局への前記第1、第2及び第3の送信データパケットの前記各到達 時間測定値に対応したデータを含む前記位置ファイルを前記加入者局から前記基 地局に送信する手段と をさらに含む請求項82記載の装置。
- 96前記基地局が前記加入者局で前記第1、第2及び第3の送信データパケッ トの測定した各到着時間に対応するデータを含む前記位置ファイルの内容を受信 し、前記加入者局の位置を計算し、計算した前記加入者局の位置を前記加入者局 へ送信する請求項95記載の装置であって、前記加入者局装置がさらに前記加入 者局位置計算値を受信するための手段をさらに含む装置。
- 97前記位置ファイルが、前記第1、第2及び第3のアンテナのうちの一つま での距離を表すデータと、前記第1、第2及び第3のアンテナのうちの前記一つ と残りの二つとの間の受信データパケットの到達時間のそれぞれの差を表すデー タとを含む請求項95記載の装置。
- 98前記位置ファイルデータがダイアル呼び出しにより公衆通信用交換網経由 で前記基地局からアクセスされる請求項95記載の装置。
- 99前記位置ファイルデータがパスワードによってアクセスされるととも秘匿 化形式で前記基地局に送信される請求項95記載の装置。
- 100前記位置ファイルデータが前記加入者局における開始表示に応答して前 記基地局に送信される請求項95記載の装置。
- 101データパケットを基地局から加入者局に伝達する無線通信システムであ って、互いに隔てて配置された第1及び第2の転送局を有し、前記第1及び第2 の転送局の各々が基地局からのデータパケットの受信と前記データパケットの加 入者局への再送信に適合しており、前記第1の転送局が第1の転送局受信機と第 1の転送局送信機と第1の転送局アンテナとを含み、前記第2の転送局が第2の 転送局受信機と第2の転送局送信機と第2の転送局アンテナとを含む無線通信シ ステムにおける装置であって、 前記データパケットを前記第1及び第2の転送局で受信する手段と、 第1の送信データパケットを形成するように前記データパケットを前記第1の 転送局アンテナから再送信する手段と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記データパケットを前記第2の転送局アンテナから再送信する手段と を含む装置。
- 102第3の転送局受信機、第3の転送局送信機及び第3の転送局アンテナを 有する第3の転送局をさらに含む請求項101記載の無線通信システムにおける 装置であって、 前記データパケットを前記第3の転送局で受信する手段と、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記データパケットを前記第3の転送局アンテナから再送信する手段と をさらに含む装置。
- 103前記データパケットを前記基地局から前記転送局の各々に伝達し、前記 データパケットを前記転送局の各々から前記加入者局に符号分割多重信号により 再送信し、前記符号分割多重信号を前記第1の送信データパケットと前記第2の 送信データパケットとをそれぞれ含む時分割多重第1及び第2の時間スロットに 分割してある請求項102記載の装置。
- 104前記符号分割多重信号を前記第3の送信データパケットを含む第3の時 分割多重化した時間スロットに分割してある請求項103記載の装置。
- 105前記データパケットを前記基地局から前記転送局に時分割多重デジタル 無線通信リンクによって伝達する請求項103記載の装置。
- 106前記データパケットを前記基地局から前記転送局に広帯域ケーブルテレ ビジョンリンクによって伝達する請求項103記載の装置。
- 107前記データパケットを前記基地局から前記転送局に光ファイバーケーブ ルリンクによって伝達する請求項103記載の装置。
- 108前記データパケットを前記基地局から前記転送局に対利得モジュール電 話リンクによって伝達する請求項103記載の装置。
- 109前記データパケットを前記基地局から前記転送局に撚り対線ループ電話 リンクによって伝達する請求項103記載の装置
- 110データパケットを基地局から加入者局へ放送周波数で無線伝送する無線 通信システムであって、互いに隔てて配置された複数のアンテナに広帯域伝送ケ ーブルによって結合したヘッドエンドを含む広帯域ケーブル分配システムをさら に含むとともに、前記ケーブル分配ヘッドエンドにおいて少なくとも一つの中央 に配置した転送局を含み、前記転送局が前記基地局からの前記データパケットの 受信と前記データパケットの前記広帯域伝送ケーブルによる前記加入者局への再 送信とに適合し、前記広帯域ケーブル分配システムが前記広帯域分配ケーブル沿 いで互いに隔てられた第1及び第2の位置にそれぞれ設けた第1及び第2の遠隔 設置アンテナをさらに含む無線通信システムにおける通信装置であって、 前記データパケットを前記中央配置転送局で受信する手段と、 前記データパケットを前記中央配置転送局から前記第1の遠隔設置アンテナに 前記広帯域伝送ケーブル経由で第1のケーブル搬送波周波数で送信する手段と、 前記データパケットを前記第1の遠隔設置アンテナで前記第1のケーブル搬送 波周波数で受信する手段と、 第1の送信データパケットを形成するように前記データパケットを前記第1の 遠隔設置アンテナから前記無線伝送用放送周波数で再送信する手段と、 前記データパケットを前記中央配置転送局から前記第2の遠隔設置アンテナに 前記広帯域伝送ケーブル経由で第2のケーブル搬送波周波数で送信する手段と、 前記データパケットを前記第2の遠隔設置アンテナで前記第2のケーブル搬送 波周波数で受信する手段と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記データパケットを前記第2の遠隔設置アンテナから前記無線伝送用放送 周波数で再送信する手段と を含む装置。
- 111第3の遠隔設置アンテナをさらに含む請求項110記載の無線通信シス テムにおける通信装置であって、 前記データパケットを前記中央配置転送局から前記第3の遠隔設置アンテナに 前記広帯域伝送ケーブル経由で第3のケーブル搬送波周波数で送信する手段と、 前記データパケットを前記第3の遠隔設置アンテナで前記第3のケーブル搬送 波周波数で受信する手段と、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記データパケットを前記第3の遠隔設置アンテナから前記無線伝送用放送 周波数で再送信する手段と を含む装置。
- 112前記データパケットを前記基地局から前記各転送局の各々へ伝達し、前 記データパケットを前記各転送局の各々から前記第1及び第2の遠隔設置アンテ ナに符号分割多重信号により再送信し、前記符号分割多重信号を前記第1の送信 データパケットおよび前記第2の送信データパケットをそれぞれ含む時分割多重 化した第1及び第2の時間スロットに分割してある請求項111記載の装置。
- 113前記データパケットを前記転送局から前記第3の遠隔設置アンテナに符 号分割多重信号により再送信し、前記該符号分割多重信号を前記第3の送信デー タパケットを含む第3の時分割多重化した時間スロットに分割してある請求項1 12記載の装置。
- 114前記システムが複数の前記中央配置転送局を有する請求項112記載の 装置。
- 115前記広帯域伝送ケーブルが同軸ケーブルである請求項112記載の装置 。
- 116前記広帯域伝送ケーブルが光ファイバーケーブルリンクである請求項1 12記載の装置。
- 117前記位置ファイルデータがパスワードによってアクセスされる請求項3 7記載の方法。
- 118前記位置ファイルデータを秘匿化形式で前記基地局へ送信する請求項3 7記載の方法。
- 119前記位置ファイルデータがパスワードによってアクセスされる請求項9 5記載の装置。
- 120前記位置ファイルデータを秘匿化形式で前記基地局へ送信する請求項9 5記載の装置。
- 121互いに隔てて設けられた第1、第2及び第3のアンテナを含み受信デー タパケットを形成するようにデータパケットを送信機から受信機に伝達する無線 通信システムであって、前記受信機の位置を算定するシステムを含む無線通信シ ステムにおいて前記位置算定システムを較正する方法であって、 既知の位置に較正受信機を位置付ける過程と、 第1の送信データパケットを形成するように前記データパケットを前記第1の アンテナから送信する過程と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記データパケットを前記第2のアンテナから送信する過程と、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記データパケットを前記第3のアンテナから送信する過程と、 前記較正受信機で前記第1、第2及び第3の送信データパケットを順次受信し 、第1、第2及び第3の受信データパケットを形成する過程と、 前記較正受信機で前記第1、第2及び第3の受信データパケットの各到達時間 を測定する過程と、 前記第1、第2及び第3のデータパケットの前記各到達時間測定値から前記較 正受信機の位置を計算する過程と、 前記較正受信機の前記位置の計算値を前記既知の位置と比較する過程と を含む方法。
- 122前記較正方法が前記位置計算値と前記既知の位置との間の差を計算する 過程と、前記システムを較正するように前記第1、第2及び第3のアンテナから の送信にそれぞれ遅延を与える過程とをさらに含む請求項121記載の無線通信 システム。
- 123前記較正方法が前記位置計算値と前記既知の位置との間の差を表す誤差 表示量を計算する過程と、前記システムを較正するように前記誤差表示量を前記 受信機の位置の算定のための前記方法に使用されるように記憶する過程とを含む 請求項121記載の無線通信システム。
- 124互いに隔てて設けられた第1、第2及び第3のアンテナを含み受信デー タパケットを形成するようにデータパケットを送信機から受信機に伝達する無線 通信システムであって、前記受信機の位置を算定するシステムを含む無線通信シ ステムにおいて前記位置算定システムを較正する装置であって、 既知の位置に位置付けられた較正受信機と、 第1の送信データパケットを形成するように前記データパケットを前記第1の アンテナから送信する手段と、 前記第1の送信データパケットの後に第2の送信データパケットを形成するよ うに前記データパケットを前記第2のアンテナから送信する手段と、 前記第2の送信データパケットの後に第3の送信データパケットを形成するよ うに前記データパケットを前記第3のアンテナから送信する手段と、 前記較正受信機で前記第1、第2及び第3の送信データパケットを順次受信し 、第1、第2及び第3の受信データパケットを形成する手段と、 前記較正受信機で前記第1、第2及び第3の受信データパケットの各到達時間 を測定する手段と、 前記第1、第2及び第3のデータパケットの前記各到達時間測定値から前記較 正受信機の位置を計算する手段と、 前記較正受信機の前記位置の計算値を前記既知の位置と比較する手段と を含む装置。
- 125前記較正手段が前記位置計算値と前記既知の位置との間の差を計算する 手段と、前記システムを較正するように前記第1、第2及び第3のアンテナから の送信にそれぞれ遅延を与える手段とをさらに含む請求項124記載の無線通信 システム。
- 126前記較正手段が前記位置計算値と前記既知の位置との間の差を表す誤差 表示量を計算する手段と、前記システムを較正するように前記誤差表示量を前記 受信機の位置の算定のための前記手段に使用されるように記憶する手段とを含む 請求項124記載の無線通信システム。
- 127前記基地局とは別に設けられた位置測定サービスセンターに向けて前記 加入者局から前記加入者局の前記位置を表すデータを含む位置ファイルを送信す る過程をさらに含む請求項31記載の方法。
- 128前記基地局とは別に設けられた位置測定サービスセンターに向けて前記 加入者局から前記加入者局の前記位置を表すデータを含む位置ファイルを送信す るための手段をさらに有する請求項69記載の装置。
- 129前記システムが前記第2の送信データパケットの後に第3の送信データ パケットを形成するように前記データパケットを第3のアンテナで再送信する手 段をさらに含む請求項24記載の方法であって、前記加入者局受信機内で前記デ ータパケットを受信する前記方法が、 前記加入者局受信機で前記第2の送信データパケットを受信した後前記第3の 送信データパケットを受信して前記第3の受信データパケットを形成する過程と 、 前記受信機で前記受信データパケットを形成するように前記第1、第2及び第 3の受信データパケットの少なくとも一つを選択する過程と、 前記加入者局で前記第1、第2及び第3の送信データパケットの各到達時間を 測定する過程と、 前記第1、第2及び第3の送信データパケットの前記各到達時間測定値から前 記加入者局の位置を表すデータを含む位置ファイルを計算する過程と、 前記加入者局から前記基地局とは別に設けられた位置測定サービスセンターへ 、前記加入者局への前記第1、第2及び第3の送信データパケットの前記各到達 時間測定値に対応したデータを含む前記位置ファイルの内容を送信する過程と を含む方法。
- 130前記システムが前記第2の送信データパケットの後に第3の送信データ パケットを形成するように前記データパケットを第3のアンテナで再送信する手 段をさらに含む請求項82記載の装置であって、前記加入者局受信機内で前記デ ータパケットを受信する前記装置が、 前記加入者局受信機が前記第2の送信データパケットを受信した後前記第3の 送信データパケットを受信し(前記第3の受信データパケットを形成する手段と 、 前記受信機で前記受信データパケットを形成するように前記第1、第2及び第 3の受信データパケットの少なくとも一つを選択する手段と、 前記加入者局で前記第1、第2及び第3の送信データパケットの各到達時間を 測定する手段と、 前記第1、第2及び第3の送信データパケットの前記各到達時間測定値から前 記加入者局の位置を表すデータを含む位置ファイルを計算する手段と、 前記加入者局から前記基地局とは別に設けられた位置測定サービスセンターへ 、前記加入者局への前記第1、第2及び第3の送信データパケットの前記各到達 時間測定値に対応したデータを含む前記位置ファイルの内容を送信する手段と を含む装置。
- 131前記位置測定サービスセンターが前記加入者局への前記第1、第2及び 第3の送信データパケットの前記各到達時間測定値に対応したデータを含む前記 位置ファイルの内容を受信し、前記加入者局の位置を計算し、そして前記加入者 局の前記位置計算値を前記加入者局に送信する方法において、前記加入者局で行 われる方法がさらに前記加入者局位置計算値を受信し且つ表示する過程を含む請 求項129記載の方法。
- 132前記位置測定サービスセンターが前記加入者局への前記第1、第2及び 第3の送信データパケットの前記各到達時間測定値に対応したデータを含む前記 位置ファイルの内容を受信し、前記加入者局の位置を計算し、そして前記加入者 局の前記位置計算値を前記加入者局に送信する装置において、前記加入者局装置 がさらに前記加入者局位置計算値を受信し且つ表示するための手段を有する請求 項130記載の装置。
- 133前記位置ファイルデータが前記基地局とは別に設けられた位置測定サー ビスセンターによってアクセスされ、公衆通信用交換網を介して前記基地局に接 続される請求項129記載の方法。
- 134前記位置ファイルデータが前記基地局とは別に設けられた位置測定サー ビスセンターによってアクセスされ、公衆通信用交換網を介して前記基地局に接 続される請求項130記載の装置。
- 135前記位置ファイルデータがパスワードによってアクセスされ、前記基地 局とは別に設けられた位置測定サービスセンターに公衆通信用交換網を介して送 信される請求項129記載の方法。
- 136前記位置ファイルデータがパスワードによってアクセスされ、前記基地 局とは別に設けられた位置測定サービスセンターに公衆通信用交換網を介して送 信される請求項130記載の装置。
- 137前記位置ファイルデータが前記加入者局における開始表示に応答して前 記基地局に送信されるとともに、前記基地局とは別に設けられた位置測定サービ スセンターに公衆通信用交換網を介して送信される請求項129記載の方法。
- 138前記位置ファイルデータが前記加入者局における開始表示に応答して前 記基地局に送信されるとともに、前記基地局とは別に設けられた位置測定サービ スセンターに公衆通信用交換網を介して送信される請求項130記載の装置。
Independent claims138
2 paragraphs, as filed
Description: TECHNICAL FIELD [Detailed description of the invention]
Radiotelephone distribution system with time and space diversity transmission Field of invention The present invention relates to a two-way wireless communication system. In particular, this invention is Fagin Space Diversity Antenna and Time Divers for Reduction and Subscriber Position Measurement It relates to a radiotelephone system with a signal transmission. Background of the invention Wireless communication is signal fading, that is, the signal level at the receiver is the signal disappearance. Fluctuations that cause loss Multipath reflection, transmission loss that fluctuates over time depending on atmospheric conditions Temporarily low for various reasons, such as the movement of mobile receivers that pull obstacles into the signal path It is adversely affected by the fading that it gives. Signal fading is a source of poor reception and inconvenience In extreme cases, it may cause the call connection to be cut off. It is well known that various forms of signal diversity are used to reduce fading. Is. For example, as shown in US Pat. No. 5,280,472, Signal Die Versiti reduces the negative effects of fading. There are three types of diversity schemes That is, time diversity, frequency diversity and space diversity is there. Time Diversity Benefits Error Correcting Coding of Iterative, Pluggable or Repeated Positional Forms Obtained by using. Error detection method combined with automatic retransmission is time-consuming Provides a form of Iversichi. Frequency diversity has a wide signal energy to deal with fading Spread over bandwidth. Frequency modulation is a form of frequency diversity is there. Another form of frequency diversity is also known as spread spectrum. Code division multiple access (CDMA). Since it is originally a wideband signal, it is a CD. MA signals are less susceptible to fading than narrowband modulated signals. In general, Fading occurs only in part of the radio frequency spectrum at any given time Therefore, the spread spectrum signal is originally less susceptible to the adverse effects of fading. Space Diversity sends the same signal through two or more antennas separated from each other Do it by communicating or receiving. Space diversity has one signal path An alternative signal path for protection against fading at any point in time provide. Because the receiver receives the same signals separated from each other with a slight transmission delay Space diversity also causes some time diversity. The difference in transmission delay is received The aircraft needs to be able to distinguish between incoming signals. One solution is for the incoming signal A multi-dimensional receiver with one receiver assigned to each is used. For example, U.S. Patent No. Artificial multiplier with 2-chip delay or several-chip delay according to No. 5,280,472 Time Diversity Smaller delay compared to information symbols to produce signals It is known to be introduced in pace diversity multi-antenna CDMA systems. .. CDMA systems arrive at receivers with different propagation delays of 2 chip delays or more Multiple equal signals can be distinguished from each other. Such a receiver is a rake (R) ake) Known as the receiver. However, prior art systems have received CDMA signals. Requires multiple CDMA receivers, one for each issue. Multiple such CDs Hope to create a time diversity CDMA signal reception system that does not require an MA receiver Good. The measurement or calculation of the position of the mobile device is known. Depending on the system, mobile position Measure the position with a fixed antenna. In other systems, the mobile device is from multiple received signals Calculate the position of your station. In the case of a two-way system, join the mobile station via a communication link Position data can be exchanged with each other from both the person and the fixed system. Mobile station subscriber Various known systems use satellites or multiple antennas to transmit location information I am. For example, a multi-directional receiving antenna is used for triangulation of the position of a mobile transmitter. Can be In such systems, the fixed receiver is the location of the mobile station subscriber. In other systems, the mobile subscriber station calculates the position of its own station from the received signal. .. For example, in the Global Positioning System (GPS), the mobile subscriber station is on the latitude and longitude of its own station. It is a double-entry satellite system that supplies signals that enable position calculations. However Both satellite systems and GPS receivers for receiving satellite signals are expensive. The combination of GPS receiver and cellular phone is in US Pat. No. 5,223,844 It is shown. Such a combination is, for example, a security guard to deter passenger car theft. Information service, that is, security service to the position of the passenger car is also activated by issuing an alarm. Provide a useful service as an alarm service. Generally, phone or day It is desirable to provide a system that combines service and position measurement at a low cost. .. Resistant to fading, lowers receiver costs and allows mobile station subscribers to measure position Time Division Multiple Access (TDMA) to provide a variety of systems to allow Time data used in various combinations with CDMA and space diversity antennas It is desirable to provide a system of Iversiti signals. Outline of the invention The present invention is time diversified for fading reduction and receiver design simplification. It is embodied as a wireless communication system using a system and a space diversity system. Further, the present invention uses the same signal as the original communication signal for wireless communication of the subscriber station. Time division signals are used to realize a wireless communication system that has a function to specify the position. Code division (spread spectrum) multiplexing and supply to space diversity antenna It is embodied as a wireless communication system. More specifically, for example, a data processor capable of carrying telephone voice signal traffic. The ket is transmitted from three different antennas at three different time points. Therefore, the receiver will receive the same data packet from three different antennas. Receive at three different times. The receiver reduces the effects of fading Use the best data packets or a combination of those data packets. In addition, the receiver uses the above three to calculate the distance from the above three transmitting antennas. Use the absolute time of incoming arrival and extrapolated relative time of one data packet. First, one Calculate the absolute distance to one antenna by the time required for the round-trip message. Next, the world The first inbound time of data packets from the other two antennas relative to the world time Represents the relative distance compared to the distance to the antenna. All three antennas Since it is at a known fixed point, the receiver is at the intersection of three constant distance curves (in the case of two dimensions). Is a circle, and in the case of three dimensions, the line of intersection of three spheres), and the position of itself is calculated. Alternative In the mobile subscriber station, a fixed station or a position measurement service center is used for raw delay measurement. The fixed data is sent, and the position of the mobile subscriber station is calculated there. More specifically, the invention is from three space diversity antennas. It is embodied in a system that uses CDMA to modulate the transmitted TDMA signal. No. In the first embodiment, the TDMA signal is transferred with three space diversity antennas. Used for multiple repeated transmissions of the same data packet from the station. In the second embodiment, three Same from three transfer stations, each equipped with one of two space diversity antennas A TDMA signal is used to repeatedly transmit a data packet multiple times. Those data packages Either they carry the same information or they carry substantially the same information. May be different spread codes or different segments of the same spread code Modulate with. A brief description of the drawing FIG. 1 shows a system of a radiotelephone distribution system including a first embodiment of a transfer station according to the present invention. It is a chart. FIG. 2 is a block diagram of a first embodiment of the radiotelephone distribution system according to the present invention. To. FIG. 3 is a system diagram of a first embodiment of the radiotelephone distribution system according to the present invention. FIG. 4 shows a system of a radiotelephone distributed system including a second embodiment of a transfer station according to the present invention. It is a chart. FIG. 5 is a system diagram of a second embodiment of the radiotelephone distribution system according to the present invention. FIG. 6 is a block diagram of a second embodiment of the radiotelephone distribution system according to the present invention. To. FIG. 7 is a timing diagram of the time division multiple access for code division multiple access modulation according to the present invention. Is. 8 and 9 are block diagrams of a first embodiment of a transfer station according to the present invention. FIG. 10A is a time slot allocation diagram of the radiotelephone distribution system according to the present invention. It is a diagram showing time division multiplexing and code division multiplexing for six simultaneous calls. To. FIG. 10B is a time slot allocation diagram of the radiotelephone distribution system according to the present invention. It is a diagram showing time division multiplexing and code division multiplexing for 12 simultaneous calls. To. 11A and 11B show the time slot of the radiotelephone distribution system according to the present invention. Time division multiplexing and code division multiplexing for 24 simultaneous calls It is a figure which shows the conversion. FIG. 12 is a block diagram of a second embodiment of the transfer station according to the present invention. FIG. 13 is a block diagram of a subscriber station according to the present invention. FIG. 14 is a block diagram of a centralized integrated transfer station according to the present invention. FIG. 15 is a block diagram of the transfer station antenna configuration. FIG. 16 shows the dispersion according to the present invention using a coaxial cable or a fiber optic cable. It is a block diagram of an antenna configuration. FIG. 17 shows the timing of the time division multiple access for code division multiple access modulation according to the present invention. It is a figure. FIG. 18 is a system diagram showing the distributed antenna configuration of the present invention. FIG. 19 shows a system according to the present invention in which the position measurement center is arranged outside the communication system. It is a block diagram of a stem. FIG. 20 is an explanatory diagram of the mobile subscriber station position calculation system according to the present invention. FIG. 21 is a system of the present invention illustrating a mobile subscriber station position calculation method. Figure 22 illustrates how to calculate the distance from the subscriber station to the transmission transfer station. It is a figure. Figure 23 illustrates how to calculate the relative distance from a subscriber station to two transmission and transfer stations. It is a timing diagram to do. Detailed explanation System Description-First Example (Figures 1, 2, 3, 8, 9) In the first embodiment of the present invention shown in FIG. 1, the moving antenna 10 is provided. The station user is coupled to the CDMA transfer station 14. CDMA transfer station 14 is ante It is equipped with T16, antenna A11, antenna B12, and antenna C13. Ante Na A, B and C can be attached to separate structures or a single machine as shown. Attach to strike. Physical requirements are non-correlated spaces between these antennas All you have to do is set it to a value sufficient to achieve diversity. A quarter wavelength interval is sufficient However, it is preferably at least 10 wavelength intervals. 10 wavelengths at 1GHz At about 30 feet, at 5 GHz, 10 wavelengths are about 6 feet. Mobile subscriber station antenna 10 (in this specification, user terminal antenna, subscriber station Antenna, or simply antenna U), bidirectional to antennas A, B and C Connect with a wireless link. The CDMA transfer station 14 is switched via the antenna T as appropriate. It is connected to the public switched telephone network with a two-way wireless link. During operation, forward channel received in the form of a data packet by antenna T Nell telephone voice traffic is transmitted on antenna A during time slot 1 and Repeated on antenna B during time slot 2 and ante during time slot 3 Repeatedly at Na C. All three repetitive data packets are antenna 10 Will be received sequentially. In the opposite direction, the telephone voice traffic transmitted from antenna 10. Data packets representing the ticks are received at antennas A, B and C at about the same time. The CDMA transfer station 14 transmits this reverse received packet via the antenna T for public communication. Resend to the talk exchange network. Figure 2 shows the mutual support networks, that is, the public switched telephone network 20, the telephone exchange center. Tar and central processing equipment 22, and CDMA transfer stations 26, 28, 30, 32, 3 4, 36 and 38 of the system of the invention containing different interconnections between each other It is a summary diagram. Users of CDMA subscriber station 42 go from antenna 10 to antennas A, B and C For this reason, it is combined with the CDMA transfer station 38. Antenna T39 of CDMA transfer station 38 The wireless TDMA telephone voice traffic is carried to the antenna 25 of the base station 24. This Each of the other CDMA transfer stations has a telephone exchange center 2 by various interconnection means. Connected to 2. Connection means W between TDMA base station 24 and CDMA transfer station 36 Is a wireless means with a TDMA channel configuration with six TDMA slots is there. This wireless TDMA distribution interconnect WE is an inter-digital communication Commercially available wireless such as "Ultraphone" digital wireless telephone system released by Yons Can be configured with a local loop system. TDMA time slot configuration via transfer station It is transported by and has a time slot configuration of slotted CDMA signals on the output side. Connect Means WE to provide basic connectivity for 24 audio channels It is the same as the connection means W except that there are four W modules operating in parallel. Connected hand Stage F connects the telephone exchange center 22 to the CDMA transfer station without going through the radio base station. Use an optical fiber cable. Connection means F (optical fiber cable) is W and W Since it includes a modem with a TDM / TDMA channel configuration similar to E, it is connected to the transfer station. Interface is easy to take. Telephone exchange center 22 and CDMA transfer station 30 Connection means FT (optical fiber cable that carries standard T1 multiplexing) is Chang An optical fiber cable that uses a standard T1 multiplexer as a flannel combination means. To. Therefore, a transfer station that handles WE connection means is easily suitable for operation with FT connection means. Can be matched. Connection to CDMA Transfer Station 26 C (coaxial cable) and CDMA transfer Connection CT (coaxial cable carrying T1 standard multiplexing) to station 28 is F and FT It is a cable means that functions in the same way as. Connection hand to CDMA transfer station 36 Stage L is a data stream up to 100 kb / s with the same configuration as the wireless TDMA connection means W. It is a conditional electric line that carries a machine. Connection means LE (not shown) is the connection hand It uses four conditional lines to function in the same way as stage WE. CDMA conversion The connection means PG to the transmission station 34 is a gain function that interfaces with the transfer station. Wireless and fiber optic cable media for connection to transfer stations and transfer stations / CDMA units Flexible by using a combination with a common output air interface between the terminals Achieve fast response and economical solution. Also, 64kb / s to 100kb TDMA radio input to the transfer station with a regular telephone line adapted to handle / s It can also be used instead. Also, the input side of the transfer station is the output of the gain module. Connecting to is very cost effective. Air interface interconnects these This extended idea is a cost-effective solution, as it is the same for all means. It becomes a transitional transmission medium by the decision method. In the system diagram of FIG. 3, the telephone voice traffic via the public switched telephone network 20 is TDM. It is connected to a TDMA base station 24 having an A signal transmission / reception antenna 25. plural CDMA transfer stations 44, 46, 48, 50 and 52 have multiple subscribers 45 and 4 Provide wireless telephone service to 7. Each CDMA transfer station is for receiving TDMA signals. Separate antennas A, B and for communication between the antenna T and mobile station subscribers 45 and 47 And C are included. For example, TDMA base station 24 covers a large number of CDMA transfer stations. It has a reach of 35 miles in radius. Each CDMA transfer station usually reaches 5 miles Distanced, 3 miles apart to form a cellular coverage throughout the region .. Subscriber station 45 communicates with CDMA transfer station 46, and subscriber station 47 communicates with CDMA transfer station 46. Five Communicate with 0. Another CDMA transfer as the subscriber moves within this system The station sends and receives signals to and from its subscriber station. An alternative example is the three antennas used to achieve transmission space diversity. Take advantage of the high degree of connectivity mentioned above to disperse more widely. Wider dispersion Due to fading caused by communication failure as well as compensation for multipath fading Compensation for Jing is also possible. For example, a CDMA user (antenna 10 in Figure 1) Going behind a building or hill, three space diversities in one transfer station Signals from all antennas are fading. However, the energies in each time slot are transferred differently as shown in Figure 4. If it is sent from a station, it will be blown from all three transfer stations at the same time. There is a high probability that it will not be clicked. Therefore, run the effects of fading due to disability It can be dammed and approximated by multipath fading. Randomization Centrally controls different time slots for each individual during the call setup process Achieved by letting Laura assign. Using W or WE connection means When it is put into production, it has almost no effect on the capacity between the base station and the transfer station, but TD The number of MA receivers will increase. However, the link from the base station to the transfer station is diversified. There is also improvement. In general, the impact on other power line connecting means is even smaller. Sender The main advantage of using multiple transfer stations as an event source is user CDMA. Evaluation of signal quality from each transfer station on the receiver and better quality links found It is possible to request channel switching for each time slot when It is a highly reliable and smooth transition when the the passes through one area. System Description-Second Example (Figures 4, 5, 6 and 12) Figure 4 illustrates a radiotelephone distribution system with advanced space diversity doing. Similar to the previous example, the mobile user antenna 10 is connected to the time slot 1 period. Antenna A inside, antenna B during time slot 2, and time slot 3 Combine with antenna C respectively during the period. However, antennas A, B and C are mutually It is installed in separate CDMA transfer stations 54, 56 and 58, respectively. Yo More specifically, the antenna A60 is installed in the CDMA transfer station 54, and the antenna B68 is provided at CDMA transfer station 56, and antenna C64 is provided at CDMA transfer station 5 It is provided in 8. These transfer stations 54, 56 and 58 have antennas 62, 70 and It is connected to the TDMA wireless digital telephone system via 66 and 66 respectively. The signals received by the subscriber station antenna 10 from the antennas A, B, and C have the configuration shown in FIG. It is the same as the received signal. However, antennas A, B and C each transfer individually Since they are located at stations 54, 56, 58 and separated from each other, the signal diversity is sent. Significant improvements in both communication and reception. In the system configuration shown in Fig. 6, each CDMA transfer station has antenna B or antenna B or C. It is the same as that of Fig. 2 except that it has. For example, the CDMA transfer station A108 It is equipped with another antenna A109. CDMA transfer station 106 has antenna B107 To do. Similarly, the CDMA transfer station 104 has an antenna C105. Therefore , Antenna 10 of CDMA subscriber station 112 is CDMA transfer station 108, 106 and Receive signals from each of the 104 and 104. Those received signals are unannounced at any time Meaning that only one of tena A, B or C is transmitting to antenna 10. It is a time-division-multiplexed signal. However, during the transmission period, antennas A, B and And C supply code division multiple access to other users. In this embodiment, each transfer station has only one type of antenna, i.e. an antenna. It has A, antenna B or antenna C. System covering the service area The layout is shown in Fig. 5. As in the previous example, the public exchange network 72 has a radius of about 35 my Coupling to TDMA base station 74 with transmit antenna 75 for the area of .. Separate CDMA transfer stations from each other in one direction 84 throughout the service area In the other direction 86, it is arranged so as to cover the service area. is there. Regular placement is shown for illustration. In fact, the CDMA transfer station , Keep multiple subscribers 88, 90 within reach of A, B and C antennas Arrange to provide such a range of communication. For example, CDMA Transfer Station 76 and 82 is antenna A type, CDMA transfer station 80 is antenna C type, CDMA transfer device 7 8 is antenna B type. Therefore, subscriber 88 transfers the signal to the CDMA transfer station 76. , 78 and 80, and subscriber 90 is a CDMA transfer station 82, 78 and 8 Receive a signal from 0. The time slot configuration for use in the present invention is shown in FIG. Six time slots Is used. Time slots 1 and 2 are for reception and time slots for subscriber station transmission This is followed by time slot 4, which is also used for reception. Ku. During time slots 5 and 6, CDMA receiver means are from other transfer stations Scan the transmission. Call settings If line setup or transfer is required, the base station has base station frequency and transfer station frequency. Assign number pairs, slots and PN sequences. Next, which subscriber will take the line Send all the assignments and specifications for use to the transfer station. Call setup period In the meantime, the transfer station transfers the slot and PN sequence allocation to the desired subscriber station. To. For example, TDMA time slots 1 to 8 are associated with users A to F, respectively. See Figure 17 in the digits. In a given time slot, eg time slot 2, Message to user B is synchronization information 1701, common for system-wide functionality Dedicated user for control data 1702, individual control data 1704 and user B Includes The Traffic 1705. Dedicated user traffic 1705 is a call setter Used to transmit signaling information and initialization data during the up period. Forward route Signal compression, decompression, and forward error correction (FEC) are performed at the base station. Forward In (direction toward the subscriber station), the base station continuously transmits, but the information of each slot Is directed to a specific subscriber station. For example, a base station transmits information on frequency fa during slot 1. Transfer station Demodulates the frequency fa signal during this slot 1 and uses that information. Receive the information by playing only at the umbrella level or bit level To. The transfer station does not perform any decryption (ie error correction, compression or decompression) I. Therefore, the transfer station design receives the coded signal from the TDMA base station. It is simplified by that. Received TDMA signal after playback at symbol level In combination with the assigned PN sequence, CD at frequency fp without intentional delay Retransmit from the transfer station as an MA signal. The transfer station receives this information from the base station Accumulate in buffer memory. Above the accumulated buffer at the end of Antenna A transmission Modulate the chain of PN signals with the information described and send it to antenna B via an appropriate transmitter. Shi Therefore, using the same PN sequence, the increments are the same but by a predetermined number of chips. An information signal including is transmitted by the antenna B. Relative position or transmission information The phases of the PN sequences are different. At the end of the first iteration, the time slot buffer Performs a third read of the information to form a third iteration of the information, so that it is a sequence of PN sequences. It modulates the chain and also transmits it to antenna C in different phases via the appropriate transmitter. Subscriber station processing Subscriber stations with the correct CDMA code have three slots containing information signal iterations During each period of, the day from three antennas located at different positions from each other Reception is performed in a manner that the same content of the tap packet is received three times. Next, the subscriber station Compares the three reception results and is the best based on error rate, phase distortion, signal-to-noise ratio, etc. Choose good quality ones. In this way, in achieving space diversity transmission Wear. Only one antenna is required at the subscriber station. The subscriber station demodulates and decodes the signal , Error correction, decompression, etc. Signal power from all three time slots A maximum likelihood combiner can be used for the combination of. Received data packet Ideally, the energy should be combined by the maximum method before the minimum judgment. During the third time slot T3, the subscriber station uses the same PN sequence as when it was received. And return it to the transfer station. This PN sequence was extracted from the reception result (after playback). May be local, based on the original code received during the call setup period It may be raw. Since the subscriber station does not transmit during the reception period, it is a die pre No crap or notch filter is needed. Simple T / R (to switch between transmitting and receiving of the antenna) Send / receive) Use a changeover switch. To the subscriber station to achieve the three-branch diversity Only one receiver is needed. This is the three chains that a rake receiver needs. It is not necessary in Ming. Also, triple time-space redundancy with frequency protection provided by extended spectrum. Benefits can be obtained without compromising capacity. Three-branch diversity and deep phasins A reduction of at least 10 dB (10x percentage) is usually achieved per g. Same information The interference level is tripled by repeating the signal three times, but the fading is 10d. The transmitter power level is reduced by 1/10 (10 dB) as B is reduced. Therefore , The amount of interference as a whole is reduced by a rate of 10/3 or by 5 dB. Is it a transfer station? Et al. Links to subscriber stations operate in self-interference mode, so do not use diversity It is possible to use subscriber lines at the same time, which is about three times as much as in the case. Return route In the opposite direction (direction from the subscriber station to the transfer station), switch the three receivers. Connect to each of the three antennas of the transmission station to create a conventional three-branch space diversity. Form. The above analysis of interference and the number of available lines is reversed as in the case of forward transmission. Suitable for directional transmission, but information is transmitted only once and simultaneously with three base station antennas The only difference is that it is received by. The present invention can increase the number of subscribers per frequency wave and is costly. It is efficient. First, the subscriber station needs only one receiver. Second, join No diplexer is required at the station. Third, the transfer station decodes or recodes the signal No need for conversion. On the other hand, because it uses space diversity in the opposite direction. , The number of subscriber stations per transmitter is the same, and the number of subscribers per receiver increases .. On the contrary, the noise of the subscriber stations is high when the increase in the number of subscriber stations is not fully utilized. Is acceptable. The signal received by the transfer station from the subscriber station is intentionally delayed from the transfer station in the same time slot. Returned to the base station without delay (decoding at symbol level or bit level playback) Without conversion). As long as the slot is in the same TDMA frame, or less As long as one frame period of that slot is used from the base station to the transfer station There is no additional delay in the practice of the present invention. Transfer Station-First Example (Figures 8, 9 and 15) The CDMA transfer station receives a TDMA input on antenna T. Transfer station antennas A and B And the output side of C reaches a large number of subscribers in relatively densely populated areas Therefore, a CDMA configuration is used. CDMA has some desirable attributes for this application Be prepared. Broadband signals are inherently strong in multipath environments, either intentionally or naturally. It has resistance to wading. Selective fading suppresses the entire spectrum The chances decrease as the transmission spectrum increases. High chip speed, ie The increased TW product has a large anti-fading margin required to achieve the desired performance level. Reduce the slack. Spread spectrum signals are based on anti-multipath protection for anti-fading protection I have it. However, the statistical model has fading frequency or connection Time is not taken into consideration. Specific terrain at each point and that terrain for the receiver The degree of change determines the actual fading pattern. Small with low antenna For cells, the difference in path length of strong signals is likely to be small. As a result, hula It becomes a fading. That is, a spec that spans 10 to 15 MHz Ram causes fading at the same time. Therefore, at least 25 or 35 If the Gahertz spectrum is not available, it will protect against flat fading. Therefore, the original anti-multipath protection characteristic of the spread spectrum signal cannot be utilized. Also The result is a multipath that produces enough delay to take advantage of the additional rake receiver. Often does not occur. Natural or artificial multipath advantage, if at all For this purpose, an additional receiver / correlator is required for the CDMA user terminal. But So, to maintain reliable operation using CDMA only, link power allocation Required additional margin, especially when the mobile user stops at one of the null points Margin to prepare for when the fixed machine user moves the position terrain a little Should be at least 15 dB. The present invention is another important property of spread spectrum systems, namely drought resistance. Use the communication performance as a countermeasure for a difficult multipath environment. CDMA system The capacity of the device is limited by the amount of interference received by the desired receiver. TW product gives the desired signal The actual value of the transmitted data rate is if it is large enough to derive from interference It doesn't matter. Therefore, in the present invention, three different signals of the transmitted signal Allows 3 iterations from the tena, with a transmit power margin of 10d per high performance link Increase the transmission information speed to realize transmission triple diversity that allows B reduction is there. Therefore, even if there is additional interference to the link, the CDMA processing gain will be used. Can easily overcome the adverse effects of. That is, in a high quality system, Mie Diversity The benefits from are significantly outweighed by the drawbacks associated with increased interference. The block diagram of the transfer station according to the first embodiment of the present invention is attached to the forward channel. Is shown in Fig. 8. Transfer TDMA antenna 916 via receive switch 918 TDM A Connect to receiver 800. Output of TDMA receiver 800 is demultiplexer 8 Connect to 02 and store its output in time slot buffer 806. Time multi Plexa 808 accesses the contents of time slot buffer 806 and antenna A It supplies data packet output to multiple CDMA encoders 810 for transmission. Time Inter-multiplexer 808 is a multiple CDMA encoder for antenna C transmission 812 Also supplies data packet output. Similarly, the time multiplexer 808 is Anne Supply data packet output to multiple CDMA encoders 814 for tena B transmission To. CDM each with multiple CDMA encoders 810, 812 and 814 A Transmitters 816, 818 and 820 are provided respectively. These C DMA transmitter antenna A via antennas 822, 824 and 826 respectively Connect for transmission, antenna B transmission, and antenna C transmission, respectively. TDMA receiver 800, time slot buffer 806, time multiplexer And each coordination adjustment of CDMA encoder is controlled by synchronization and control device 804. I will control it. Synchronization and controller 804 is a location indicator (ID) that displays a particular forwarding station. To the multiple CDMA encoders 810, 812 and 814 , B and C are included in the transmission signal. The transfer station in Figure 8 is a CDMA receiver and TD whose details are shown in the block diagram in Figure 9. It also has an MA transmitter 900. TDMA transmitter via transmit / receive switch 918 Connected to antenna 916, the CDMA receiver is shown in more detail in Figure 15. Connect to Antenna A, Antenna B and Antenna C via their respective diplexers To do. Figure 9 is a transfer station block that illustrates the configuration of the processing signal on the reverse channel. It is a figure. Antenna A, shown by reference numbers 822, 824 and 826, respectively. B and C are CDMA receivers A902, CDMA receivers B904 and CDM A Connect to each receiver C906. Output of each CDMA receiver A, B and C Supplied to the maximum likelihood combiner 908, the output of which is a memory buffer and time Supply to the lot multiplexer 910. TDMA reception corresponding to the block diagram in Fig. 8 And the CDMA transmitter 828 connects to the other terminal of the transmit / receive switch 918 To do. Figure 15 shows antenna A, antenna B and antenna C in TDMA and CDMA. Illustrate the antenna configuration of the transfer station that can be shared between the transmit signal and the receive signal. There is. Modulator 1502 includes antenna A1512, antenna B1516 and ann. Diplexers 1510, 1514 and 15 connected to Tena C1520 respectively Each connected to 18 via a time multiplexer 1503. Diplexer 1 Another input for each of the 510, 1514 and 1518 is the demodulator 1504, 1 Connected to the outputs of 506 and 1508, respectively. During the operation shown in FIG. 8, the TDMA signal received by the antenna 916 is demultiplexed. And accumulate in the time slot buffer 806. Data for a given subscriber Multiplexers selected by the time multiplexer 808 during the period of time slot 1 Encode CDMA signal with one of encoder 810 and transmit from antenna A .. Select the same packet again with the time multiplexer 808 and the period of time slot 2 Encode the CDMA signal with one of the multiple encoders 812 inside and antenna B To send. Finally, the same data packet with a time multiplexer 808. Select and encode the CDMA signal with one of the multiple encoders 814 and time slot It is transmitted from antenna C during the period of t4. See Figure 9 for the reverse direction, from the subscriber station during time slot 3. CDMA transmissions are received by antennas 822, 824 and 826 at about the same time. Each of the CDMA receivers 902, 904 and 906 receives the same data packet To do. Is the maximum likelihood combiner 904 all three time slots before a difficult decision? Combine these powers. In general, the signal with the highest intensity and no error is selected. Be selected. After selection, the data packet is a memory buffer and time slot machine From TDMA transmitter 914 held in Luciplexa 910 and in a suitable time slot Wait for transmission via antenna 916. Transfer Station-Second Example (Fig. 12) The transfer station according to the second embodiment of the present invention is shown in FIG. This transfer station is only one Transfer stations in Figures 8 and 9, except that they have CDMA antennas A, B or C. Is the same as. More specifically, in FIG. 12, the antenna 1200 is turned off. It is connected to the TDMA receiver 1204 via the switch 1202. TDMA The output of receiver 1204 is demultiplexed by demultiplexer 1206 and time It is stored in slot buffer 1208. Accumulated in time slot buffer 1208 Data packets are time-multiplexed by the multiplexer 1210 to multiple CDMs. Supplied to one of the A encoder 1212. The encoded CDMA signal is C Amplified by DMA transmitter 1214 and antenna A12 via diplexer 1218 Guided by 28. Antenna A1228 also receives CDMA signals. Therefore, CDMA receiver Connect 1226 to antenna A1228 via diplexer 1218 and receive day Supply data packets to the combiner and time slot buffer 1224. time Multiplexer 1222 sends data packets in time slot buffer 1224 Take out form a time-division multiplex signal to TDMA transmitter 1220. TD MA transmitter 1220 connects to antenna 1200 via transmit / receive selector switch 1202 Continue. The operation of this transfer station is called the own station position identification display (ID). Controlled by synchronization and control unit 1216, including a meter. During operation, the transfer station receives a TDMA signal from the antenna T1200 and sends that signal. Demodulated with TDMA receiver 1204 and demultiplexed with demultiplexer 1206 And accumulates in the time slot buffer 1208. Time slot buffer 120 This data packet in 8 is sent from antenna A during time slot 1. To. For that purpose, time multiplexer 1210, CDMA encoder 1212 And CDMA transmitter 1214 from the time slot buffer 1208 respectively Read the data packet and CDMA code to antenna A with the appropriate data packet Encode the conversion signal. On the opposite route, the CDMA receiver 1226 will be on time. Signals are simultaneously received by antennas A, B and C in the entire lot. received data Packets are demodulated with their respective PN codes and separate time slots are allocated for each user. The allocated time is accumulated in the slot combiner buffer 1224. Next, the data Time-division multiplex with multiplexer 1222 and TDMA transmitter 1220 Transmission is transmitted from the antenna 1200 via the transmission / reception selector switch 1202. Transfer station varying the TDM / TDMA signal into the CDMA signal is a turning point for conversion. CD The MA signal, when properly designed, provides excellent performance against multipath interference. Turn The input side of the station is part of the structural distribution network. It's basically a relay in the network The point, that is, the address to the CDMA final user is the add of the intermediate point (transfer station) It also includes less. In the general case, the CDMA end user moves to another transfer point Transfers independent of the CDMA user's address because the network is accessed via It is necessary to provide the ability to give a station address. TDMA subscriber station in Figure 2 For fixed subscriber stations such as 40, grant backup route or anti-fagin This is not a problem except for defense. A suitable input network is a large number of base stations, transfer stations and TDMA units as shown in Figure 2. Includes the station. Any TDMA user or any time slot on any frequency Can be assigned to a transfer station. CDM to reduce transfer station costs A When a user is connected via a specific forwarding station, any of the assignments to that forwarding station Other CDMA users should also be assigned to time slots with the same frequency as the user. And propose. The number of TDMA radio elements by properly managing this allocation Can be significantly reduced. Base station 24 or telephone exchange center and central processing equipment 22 manages radio resources, assigns frequencies, time slots and PN codes, Ensure efficient use of Pectrum and radio equipment. Frequency, time slot And PN code are all assigned during the initial call setup. The local transmission on the output side of the transfer station is CDMA, but the time division signal is sent to each subscriber station. Allocate a specific time slot. Therefore, the individual information speeds are time slots Increases with number. However, the overall data rate for all subscribers remains the same. The total transmission power for all signals remains unchanged, only redistributed. Individual The transmission power is voice traffic because the time slot is turned off when there is no activity. It drops by about 3 dB. Since the same information is transmitted three times, the average transmission power The force increases by 5 dB. Therefore, the total transmission power from each transfer station is sent three times. It increases by 5dB depending on the signal, but it can be reduced by 10dB by improving diversity. Therefore, a total reduction in average power of 5 dB can be obtained. Overall, dryness that extends to other cells Wataru is reduced by 5 dB. Base station (24 in Figure 2) or telephone exchange center and central processing equipment (Figure 2) 22) also performs channel switching processing. Little to get diversity on the CDMA side Must have at least 4 time slots and CDM for scanning other forwarding stations You also need one time slot for the A receiver. Double da in four time slots It can only provide Iversichi. Mie diver according to five time slots The desired level of Shichi can be achieved. Add an additional receiver to the CDMA user terminal By doing so, it is possible to perform parallel synchronization to obtain a better synchronization signal. Of course. But adding another receiver to the CDMA user terminal Is an expensive solution. Therefore, double dies in three time slots There is no channel switching because it is only a versatility. Fixed CD in 4 time slots Triple diversity for MA subscribers and dual diversity for mobile CDMA subscribers You can do it. More than 6 time slots add flexibility to your channel configuration You have the opportunity. Figure 7 shows the CDMA user terminal time for 6 time slots. The lot composition is shown. The triple antenna configuration at the transfer station is a single bar from each active subscriber station. Receive strikes simultaneously with all three antennas in the time slot assigned to that subscriber station By doing so, it will be used as a return link, so it will also reach Mie Space Diversity. To be done. Overall timing for forward and reverse CDMA links in transfer stations The configuration is shown in Fig. 10A. Six time slots are shown for illustration purposes, but described above. As you can see, you can put into action any number of time slots of 3 or more, with a reasonable upper limit of about 32. To. The order of transmission of the three active time slots can be distributed over the total number of time slots. Yes, three or more time slots are also available. CDM in Mie Diversity A Reduce the transmission power from the user terminal by at least 5 dB, perhaps more However, 5dB is equal to the performance of the forward link. In any case, send Power is controlled and maintained at a minimum level to maintain high quality links. taller than In frequency, some antenna uncorrelation even in relatively small radios or areas Can be achieved. Therefore, a transmit space diver similar to that used for forward links. -The diversity method can also be applied to reverse links. Most operating rings Significant improvement can be obtained with double diversity at the border. Each transfer station continuously transmits spread spectrum channels for synchronization and control To do. Channels for synchronization and control specify specific transfer stations and give them to user terminals. Manage the terminal for the duration assigned to that transfer station. Its synchronization and The control channel carries no user traffic most of the time. Synchronous And control channels can consist of narrowband channels that are easy to capture and track. The information holding part of the control signal has a pre-allocated time slot, and its transfer station System messages to all users assigned to a specific area covered by And contains signaling messages. Processing gain is some time transmitted in parallel Allows transfer stations to include slotted CDMA signals, thereby ante It is enough to enable the sharing of Naare. Multiple units integrated in a single position Only one synchronization and control channel is required for lot placement CDMA modules is there. Subscriber station (Fig. 13) A block diagram of the subscriber station according to the present invention is shown in FIG. Antenna 1300 sends It is connected to the CDMA receiver 1304 via the reception selector switch 1302. CD The output of MA receiver 1304 data packets data buffers 1306, 130 Supply to 8 and 1310. Combiner 1314 buffers 1306, 130 Select and combine the data held in 8 and 1310, DA converter 1316 The output is supplied to, and the compressed signal is decompressed by the decompression means in the converter to decompress the audible frequency. Produces a few outputs. Analog audible frequency input is an AD converter with data compression means It will be supplied to 1322. The output of the AD converter 1322 is the memory buffer 3120 Digital audible frequency signal sample assembled into data packets within Is. CDMA transmitter 1318 encodes with the contents of memory buffer 1320 And the CDMA coded signal is sent to the antenna via the transmit / receive selector switch 1302. Supply to 1300. CDMA subscriber stations are synchronization and timing controllers 131 2, that is, the same control device that also measures the signal delay for position measurement as described later. To expect. In the forward direction, CDMA receiver 1304 sends three identical data packets to each other. Receive and note the first of those data packets during time slot T1 Rebuffer 1306 with a second memory buff during time slot T2 A 1308, the third one memory buffer 131 during the time slot T4 Accumulate to 0 respectively. Combiner 1314 is combined or best received data Select one or more of the stored contents of these memory buffers to be selected, and change the DA Supply to the converter 1316. This system has three time and space diversity By using the data packet, it is less susceptible to fading. Moreover, since the same receiver is used to demodulate all three samples, a complicated signal No intensity averaging process is required. In the opposite direction, the AD converter 1322 with a built-in digital compression algorithm The nalog audible frequency input is converted into a data packet into buffer 1320. time Depends on the contents of buffer 1320 in CDMA transmitter 1318 during slot T3 Encode and transmit as a CDMA signal from antenna 1300. Simplification of CDMA user terminals is a major consideration in this system. main The simple simplification is that the receiver, especially the correlator with another function, can be shared by time division. Is. Functions that can be sent and received at different times are the actual operation of small portable user terminals. To simplify. Three space diversity signals with a single receiver Receive sequentially in different time slots, then move to another code and modify from another transfer station Look for a good signal. The same receiver is also used for capture and tracking. User terminal is sending Diplexer and notch filter as no reception is performed during the time slot period of Is unnecessary. Since only one PN code is required at each time point, the PN code is generated. The process is greatly simplified. Ordinary processor with relatively slow baseband processing Can be achieved with. In the time slot when the user terminal is not transmitting or receiving, the receiver is from another forwarding station. You can freely search for synchronization and control channels. User terminal does not assign to own station If you identify a better synchronization and control channel than the only one, that user terminal Sends a message to the network control device to the effect that the channel switching destination candidate has been identified. Times The network controller uses this message together with other information to execute channel switching. decide. The network control device sends a channel switching message to the target communication destination. Yu The specific symbols of the codes to be searched for by the terminal are controlled by the network central controller. It is supplied via the transfer station accommodated in your channel. Time slot configuration (Figs. 10A, 10B, 11A, 11B, 17) Figure 10A shows the time slot allocation that multiplexes six simultaneous calls. For sending Time slot allocation 1002 and reception time slot allocation 1004 are illustrated There is. The items to be filled in each box are activities during the response time slot period. time During slot 1, antenna A sends T1 to user 1 and antenna B sends T6. Is transmitted to user 6, and antenna C transmits T4 to user 4. At the same time, Ante Na A, B and C receive R5 from user 5. Next time during slot 2 Antenna A makes T2 user 2, antenna B makes T1 user 1, antenna C Sends T5 to each user 5. At the same time, antennas A, B and C are R6 Is received from user 6. Continuing with the chart in Figure 10A, time slot 3 Antenna A makes T3 user 3 and antenna B makes T2 user 2 during the period Enterer C sends T6 to each user 6. At the same time, antennas A, B and C receives R1 from user 1. Any of antennas A, B or C transmitted to user 1 during time slot 3 Please note that it is not. During that period, user 1 is transmitting and the transfer station Is receiving the signal from user 1 with all three antennas. But time slot A third transmission is made to user 1 during the period of t4. That is, time slot Antenna A makes T4 user 4 and antenna B makes T3 user 3 during the period of , Antenna C transmits T1 to user 1, respectively. Time slots 5 and 6 It is not used directly for data transfer with user 1. Figures 10A, 10B, The time slot allocations shown in 11A and 11B are shown in Figure 7, that is, when user 1 is Received during the period of inter-slots 1, 2 and 4 and transmitted during the period of time slot 3 Consistent with Figure 7. The pattern is shown in Figure 1 by looking for the point of transmission of T1. It can be seen from the time slot allocation of 0A. Transmission of T1 is time slots 1, 2 and 4 Appears on antennas A, B and C respectively. Transmission to T1 during T3 No, but referring to receive time slot allocation 1004, R1 is in time slot 3 It is shown to be received from user 1 during the period. In which time slot Since three transmissions and one reception are performed at the same time, at least four addresses are possible. A capable CDMA PN code sequence is required. In this way, data destined for users whose time slots are different from each other. Time division multiplexing is used in the sense of transporting. Also time division multiplexing Simultaneous communication of multiple PN code sequences with multiple users during each period of the time slot Code division multiplexing is used in the sense that it enables communication. As a result, there are many time divisions It becomes a superimposed code division multiple access signal. Figure 10B shows the time slot allocation for multiplexing 12 simultaneous calls. Time for transmission Slot allocation 1006 and reception time slot allocation 1008 are illustrated. To. Antenna A transfers T1 and T7 to users 1 and 7 during time slot 1 Transmit and antenna B sends T6 and T12 to users 6 and 12, respectively. And antenna C sends T4 and T10 to users 4 and 10, respectively. To do. At the same time, antennas A, B and C are users 5 and 11 to R5 and R Receive 11 respectively. Time slot allocations that multiplex 24 simultaneous calls are shown in Figures 11A and 11B. .. FIG. 11A shows transmission from the transfer station (forward), and FIG. 11B shows transmission to the transfer station (forward). In the opposite direction). Receive time slot allocation 1102, 1104, 1106 for transmission The credit time slot allocation 1108 is illustrated. For example, in time slot 5 During the period, antenna A transmits T5, T11, T17 and T23 (ie T). 5 to user 5, T11 to user 11, etc.), antenna B to T4, T10, Transmits T16 and T22, antenna C emits T2, T8, T14 and T20 Send. At the same time (during time slot 5), antennas A, B and C are R3 , R9, R15 and R21 (ie, R3 from user 3 to R9 From user 9, R15 from user 15, R21 from user 21). In the case of Figure 10A, one CD per antenna to handle six simultaneous calls MA encoder is required. Figure 10B shows ante to handle 12 simultaneous calls Two CDMA encoders are required for each one. Similarly, in Figure 11A, the antenna Each requires four CDMA encoders. So, for example, 180 P If N code sequence is available, 18 per antenna for handling 180 simultaneous calls Requires 0/6 or 30 CDMA encoders. For the increase in the number of required accesses As the number of time slots increases, the number of encoders decreases proportionally. Alternative system configuration (Figures 14 and 16) The distance between the transfer station and the diversity antenna is a wide band of 1000 feet or more. It will be extended by enhancing the performance of cable usage. The transfer station is the final stage radio frequency spectrum The ram spread signal is sent to the antenna via the cable. At the end of the cable The antenna is equipped with a radio frequency amplifier, and the actual distribution signal by cable is multi-dimensional. Brings the same improvement in communication failure as described for the transmission transmission diversity reception method. Su. However, a preferred embodiment is simply instead of using a separate cable for each antenna. Share one cable and assign different cable carrier frequencies to each antenna Use frequency division multiplexing. In this way, the desired signal is best delivered to the user. Also transmits from only nearby antennas to reduce interference. In yet another improvement, Cave In the distribution system, different elements are integrated into the regional personal communication system network. Embody. The basic building blocks are for triple transmission space and time diversity achievement. With six time slot allocation CDMA modules that drive three antennas in sequence is there. For simplicity, it is also a basic time to design a transfer station that handles incoming TDMA signals. Uses a 6-slot configuration. This module configuration with 6 time slots is double that Easy to accommodate a number of 12, 18, 24 and 30 or 32 time slots Can be applied to. Figure 14 shows the production of several different combinations. Suitable The embodiment uses a wireless input such as W or WE as the input to the transfer station, but with a cave. The distribution system also operates as well as the signal via the wire as an input. In a personal communication system using a cable, the transfer station is returned to the central controller, and it is overloaded. Reduce costs by eliminating the need for harsh environmental measures and remote power supply. Also, the same place Reduction of the required number of spare machines and equipment maintenance costs by arranging and facilitating access Achieve the reduction of. Also, fluctuations in traffic load over time or over week. Dynamically assign transfer stations accordingly, thereby significantly reducing the total number of transfer stations required To do. The bandwidth of this distribution system increases, but cable and fiber optic cables Due to the development of the bull distribution system, the cost associated with the increase in bandwidth will be absorbed at a low cost. It is declining so that it can be collected. Benefits of being able to choose from several interconnects The point is that the interconnection selection is the selection of the required cost, which is determined by the cost related to the installation of each device. Is. It seems that each network will include a large or total interconnection selectability. Is done. The lower part of Fig. 14 shows the system configuration in which the transfer station is returned to the same location as the central controller. .. For the link between the transfer station located near the central system and the antenna located at a remote point A normal bidirectional cable or fiber optic wideband distribution system 1402 is used. Wideband on the link between the transfer station located near the central system and each transfer station antenna There is considerable flexibility in configuring the spectrum into a signal format. Shi Ka And for simplicity, time slot allocation CDMA triple space / time diver TDMA protocol with Shichi air interface and frequency conversion signal It is desirable to keep it as a common air interface to the tena. Assign a separate center frequency to each antenna with a wideband wiring cable. TDMA And CDMA line separation function, use the same cable frequency as many users Can communicate with the same antenna. Transfer station antenna at position N is the assigned cable It has a transceiver tuned to the frequency. The central controller is a wideband distribution cable Final TDMA / CDM representing telephone traffic at each assigned frequency of 1402 Send and receive data packets with A waveform. That is, as shown in FIG. 16, each remote The point is a remote transceiver (transmitter, receiver, local oscillator, dip) at point 1602 Lexa and antenna). Devices placed at remote points are in phase in both forward and reverse directions In contrast, it is a simple receiver, frequency converter and low power transmitter. Make the cell smaller Mie Diversity (3 antennas and 3 time slots) with subscriber stations A low power transmission amplifier is suitable because it is used for the link to the stem. Local line The sender of the controller is in the flow of individual information and in interface A'in Figure 14. Related signaling and control information, that is, when it can be allocated in the form of packets The information displayed in the inter-slot is supplied. Signaling information includes called subscriber number, code, service overview and authenticity code. Including de etc. The control information is the route assignment information (that is, which base station, transfer station, and ann). (Specify whether it is tena), power level, busy or no call status, channel off Includes conversion messages and so on. A large amount of this information is the user information (telephone voice traffic A considerable amount of information is also sent by telephone voice traffic before the start of line transmission. It is transmitted during the period when it is actually transmitted to the line. After the connection to the user is completed Also requires a separate control channel. The base station function uses this information as a protocol. That is, it is necessary to form a boundary with the TDMA air interface, and the interface W Convert to a protocol that forms the TDMA radio frequency spectrum in. Transfer station This TDMA protocol accommodates time slots in CDMA triple space / hour data Convert to Iversichi Air Interface Protocol and first convert this signal to Antenna A Then, antenna B is used for transmission, and antenna C is used for transmission (Fig. 14). The combination base station / transfer station (BT) module located near the central controller is the basis. Combining the local station function and the transfer station function, the signal appearing in A'is accommodated in the time slot. Convert to CDMA triple diversity air interface. Combination BT mod Can be achieved by direct combination of devices that are separate from each other, and combination base stations and transfer stations. Modules developed for this can also be integrated. The CDMA signal is shown in Fig. 15. And 16 is branched at the output of the transfer station or the output of the BT module. .. For transfer stations connected to each antenna with three different cables Just switches the output at the right time. Cable to reach all antennas If only one is used, the output of the transfer station is assigned to the synthesizer frequency antenna. The frequency is shifted at an appropriate time by converting to the guess frequency. BT module Is also a frequency azil. The PN code continues while the user information is repeated in each of the three time slots. It is important that each time slot is different from each other. Therefore, this iteration Not the same as for pseudo-multipath or emulated multipath. PN The code generator continues to operate without accumulating or resetting the PN sequence. .. The continuous generation of the PN code is easier to put into production than the new launch of the PN sequence. .. In the above description, the time slots are assumed to be continuous with each other, but on the receiver side. This is not necessary if the jump order is known. In a preferred embodiment, BT mod The tool sends in two consecutive time slots, then the response signal from the user terminal. Receive. During the period of the user transmission time slot, the user terminal has the first two hours. If the lot works well and no position measurement is required, then 3 to the BT module Instructs not to send in the second diversity time slot. Double diver By using only the shichi, interference with other users is reduced, and the user receiver can be used with other users. Can be freed up to achieve functionality. The alternative method is a 1/3 forward error corrector spread across all three time slots. Use the number. By using such a code, the error probability during each time slot period can be increased. If they are almost the same, the performance will be improved. One time slot gets worse at that time If the inter-slot can be identified, the deteriorated time slot is ignored and the performance deteriorates. Request antenna channel switching to replace the time slot if continued To do. When the time slot statistics vary depending on the actual diversity channel statistics As conceivable, a preferred alternative is forward error correction over three time slots. No positive sign is used. Error detection and correction code is included only within each time slot The forward error correction code can be used over multiple time slots without it. .. Given that there is data to transmit, each antenna will be in each time slot period. Send. The data is transmitted three times, so each assigned to that antenna There are three transmit CDMA signals in each time slot per module. That ante If there are four modules assigned to na, there are two four modules at any given time. Supports 4 users, CDMA emitted from the antenna during each time slot The signal becomes 12 (see Figures 11A and 11B). When the duty rate is about 50% , Only 6 CDMA signals are actually transmitted, 2 when the 3rd time slot is not needed In the case of 0 to 25%, only 4 to 5 CDMA signals are transmitted at each point in time. is there. Receiving the same antenna in the receiving side or in the opposite direction (direction from the user to the transfer station) Also used for ink. As mentioned above, the user CDMA terminal transmits for only one time slot period. , The transfer station receives its transmission at the same time with three antennas, receiver triple space die Form a versatility. The three received signals are separate signals as shown in Figures 15 and 16. Supply to the transfer station, i.e. the BT module, via the line or different frequencies And processed separately. Use the maximum likelihood combiner to process these processed signals. Add together. Measure the S / I from each antenna path and at least time slot Holds in memory for a period of 10 pieces. Accumulated values of signal statistics are combined with maximum likelihood Used for processing. The accumulated signal statistics are used to switch channels to other antennas. It is also useful in the judgment process of. The channel switching process for the BT cable network is based on the signals from each of the above antennas. Based on the issue. The central processing unit receives information about the quality of the links in both directions. For forward links, that is during the allocated time slot period specified by a particular antenna. Receives information from a user CDMA receiver operating on the link. With a reverse link , Receive information about individual routes via different antennas. Specific Ann Information on the quality of the path via the tena is evaluated and compared to the current path via other antennas Compared or compared with other new routes that are the target of continuous search by the user terminal Can be done. The current path through a particular time slot continues to deteriorate, If a good quality route is available, the central controller will use a new route (antenna). To Assign it to the user terminal and notify the user terminal to that effect. In the channel switching process for the transfer station, this switching is not switching between antennas. It is the same except that it is generally a switch between transfer stations. Switching between transfer stations is performed Then, all three antennas related to the transfer station switch channels from the transfer station. Will be done. Some transfer stations can be put into production with wide-spaced antennas. Widely divided If you have a forwarding station with a separate antenna, the BT module mentioned above Channel switching processing can also be used. Description of operation: A new subscriber turns on the CDMA user terminal and puts the synchronization code on it. Scan until the code is captured. Next, the CDMA user terminal sends a registration message Send. The transfer station receives this message and transfers it to the central controller, and this control device The input confirmation message is returned to the user terminal to confirm the input. The central controller Refer to the registration ledger of the above new subscriber terminal, obtain the user overview, and it is in the activated state. Accumulate in a file for the user. New users are registered in this way and all All calls are transferred to this new service area. There are 28 different synchronization codes, and one synchronization code is assigned to each area. is there. Twenty-eight areas form one area, and the same sign is repeated in the next area. .. Transfer stations in one area are given different shifts or starting points for their code. It has been. Therefore, each transfer station, or each wide-range antenna, has a identifiable code. Have. The antenna or transfer station registered by the new user is known to the central controller. And the routing of all information to that user is via that node. Central control equipment Places are for the new user a set of codes or each other for the same user's current code Give different starting points to specific diversity paths or channel switching destination candidates Prepare for the search. This new user spans one half of his time slot Continuously monitor synchronization and control channels. The other of your own time slots Scan for better sync channels for half the time. The user receives a call on the control channel and allocates CDMA and time slots And set up in preparation for the start of the call. When a user makes a service request Also receives CDMA code and time slot allocation for the duration of the call To. The user terminal has a weak signal in one or all diversity paths. If not, it stays in this state until the end of the call. User receiver is a quality evaluation of incoming signal Value Since we are continuously scanning for a new route with better quality, we are searching for a new route, so the product of the route Detects quality degradation and mediums the quality degradation status with a list of better quality switching destination candidates Notify the central controller. The central controller instructs channel switching, and the user terminal Move to a new CDMA code and time slot. This behavior is end you It cannot be detected by The. At the beginning of each time slot, a short resync and arrival without user information A non-modulated part for distance adjustment, following a short control message part immediately after There is a non-modulation part. These short bursts depend on the presence or absence of user information to be sent It will be sent without any notice. If there is no user information to send, a control message confirms it Accept and reduce the transmit power by 10dB for the user information portion of the time slot. To convey user information based on the agreement obtained between the user and the central controller Note that four time slots are available for forward channels. these Turn off the time slot as described above so that other users can access it. It is also possible to increase the capacity. Improved diversity or faster de Simultaneous with audio channels of data, multiple data channels or graphic channels Multi-hour slots are available for transmission. Position measurement process (Figs. 20, 21, 22, 23) FIG. 20 shows a passenger car and its antenna as a user antenna U in FIG. 1 or FIG. Shows 4 wireless links. These radio links are time slots as shown in Figure 10A Allocated. Wireless link AU receives time slot allocation and time slot Formed in a period of 1. The wireless link BU is also a time slot allocation type and is in slot 2. Formed during the period. Wireless link AU is also a time slot allocation type and the period of slot 4 Is formed in. The wireless link AU establishes the absolute distance from U to Antea A. The distance to antenna A is the standard for measuring the path length difference between wireless link AU and BU. Form. Similarly, the path length of the wireless link AU is the route between the wireless link AU and the CU. It can also be used as a reference for measuring road length differences. The generation of all 1 vectors (for synchronization) is simultaneous for all three antennas. So the distance to all three antennas is a total of 1 in each time slot. It can be derived from the difference in each arrival time of the torr. Physical and geographic coordinates of all three antennas The positioning center having the above calculates the position of the user antenna U. The geometry of position measurement is shown in Figures 20, 21, 22 and 23. First distance AU measurement Confirm the user at a certain point on the circle A in Fig. 21. On the circle B in the second distance measurement Confirm the user located at the point. It is these that this fixed position can be authentic Only the intersections X and Z of the circle. Therefore, this user's location has two possibilities It is narrowed down to a certain point. The third distance measurement confirms the user at a point on the circle C. Yu Since the user is also located on the circle C, it must be located at the point Z. Other ante By getting more distance to na, you can see the first set of measurements and many places The accuracy is improved. If the terrain fluctuates significantly in the height direction, the constant distance circle will It becomes a constant distance sphere, and additional measurements remove the uncertainty caused by the addition of the third dimension. Wear. The position measurement processing center converts these coordinates into user-friendly instructions. To. Distance measurement by a CDMA system is achieved as follows. 1. The PN code propagated between A and U acts as a measure. Between A and U The required propagation time is the difference between the propagation time in microseconds and the chip speed in the megachip. Representing the length of a link by multiplying the number of chips expressed by the product, or signaling that length Allows "accumulation" on links during the shipping period. See Figure 20. 2. There are two ways to increase the number of chips that accumulate in the propagation path. One Is a method of increasing the path length, and the other is to increase the clock frequency of the chip. It is a method to do. Increasing the clock frequency of the chip makes the scale finer Similar to doing. Therefore, due to the increase in the clock frequency of the chip Accumulate more chips in the path delay, enabling more accurate measurements. 3. Route from antenna A to user terminal U and vice versa to antenna A The length transmits the PN code from A and retransmits the same PN code from the user terminal in the arrival phase. Believe it, the return transmission / reception signal at antenna A is the signal that has been transmitted first from this antenna. It can be measured by comparing with. The original signal is reflected and received at point A. Delay until a match is made for each chip, and the number of slipped chips By doing so, the total delay is twice the distance between antenna A and antenna U. Is proportional to. 4. The accuracy of distance measurement is about 1/4 of the number of feet represented by one chip. 1/4 P is a practical constraint that depends on how accurately the maximum correlation is detected and tracked. This The error can be reduced by the autocorrelation method, but the 1/4 chip is realistic. It is fine. 5. For the measurement of the path length between the antenna A and the user terminal U described in the above section 3. , FIG. 22 shows the transmit signal 2202 and the receive signal 2204 of antenna A. Chi At a program frequency of 10 megachips / sec, each chip displays 100 files. It is 51 chips delay between transmit signal 2202 and receive signal 2204 Represents the time required for a radio frequency signal to propagate back and forth between a subscriber station and a transfer station. Su. Half of the round-trip propagation delay, the 25.5 chip, represents the distance to the antenna .. Therefore, the distance from the antenna A to the user terminal antenna U is, for example, FIG. In 2, it is (51 x 100) / 2 = 2550 feet. Of this distance measurement The accuracy is 25 feet (100/4 feet). 6. In this way, the distance AU is measured very accurately. As mentioned above, a single receiver Receiver is used for all time slots. Subscriber receiver in time slot 1 During reception, in cooperation with the base station, the received waveform is delayed in the user terminal in the same phase. Repeat without adding. The base station receiver transmits this reception phase as described above. Calculate the absolute value of the distance in comparison with. Then the base station is of the distance measured in this way The value is sent to the user terminal, which is stored for future reading and use. .. As mentioned earlier, what matters is the phase of the waveform, the starting point of all 1 vectors. A new PN with the same content in a reverse link if is maintained through the user terminal It may be replaced with a code. Similar signs above are shifted by a given offset value Includes the same code. 7. The above reciprocating measurement method calculates the other two distances (up to antennas B and C). And it can be used to store the calculation result in the user station memory. But three antennas No direct measurement of the distance to the whole is required. See Figure 23. Three routes with the same receiver Information about everything can be collected. At that time, the receiver goes through at the start point of each time slot. Adjust for the difference in road length. Once the adjustment is complete, the receiver will inform the antenna. At the first time of use as a channel, the code is stored in the memory and the receiver receives this time. Holds until it returns to the slot and retrieves its sign from memory at the beginning of the tracking loop Used for points. Therefore, the receiver emulates three separate receivers. Three separate sets of machine parameters, one set for time slot 1, Another pair for time slot 2, yet another for time slot 3 The pair is substantially maintained. The distance to antennas B and C is measured by the number of chips. By adding or subtracting the offset to the absolute distance measurement for the link AU Can be calculated. In reality, this offset is best with the time slot as the information channel. It can be decided before the first use, and this decision is an error in searching for a new route for channel switching. Do it in about. Measure delay and signal quality indicators and potential channel switching destinations Save to file. These delay offset measurements are the additional distances in the position measurement process. Also used for measurement. More specifically, with reference to the above example, the transmitted signal from antenna A 2302 represents the distance of the 25.5 chip from antenna A to the user terminal. The signal 2304 from antenna A received by antenna U is from antennas B and C. Relative times of the signals, i.e. different time slots where these signals are placed It is used as a reference for measuring time by making adjustments. The timing of time slots 1, 2 and 3 is sequential, so it is a slot. The real-time chip patterns of G2 and 3 do not overlap. But time slot delay After the adjustment of, the timing relationship is as shown in Fig. 23. Time slot User terminal antenna U from antenna B, thus adjusting for the difference The signal 2306 received by is 8 chips ahead (that is, the signal from antenna A). Received (offset to the issue). Similarly, from antenna C to user terminal a The signal 2308 received by the antenna U is also 6 chips ahead (that is, antenna C). Received (offset to the signal from). Received signal is reference signal 2304 Being behind or ahead of (ie receiving a positive or negative delay). Ahead Row reception indicates that its antenna (B or C) is farther away than antenna A ing. In Fig. 23, the distance from antenna B to antenna U is 25.5-8 = 17.5. It's up. In feet view, the 17.5 chip is 17.5 x 100 = 1750 Feet, or path length BU. The distance from antenna C to antenna U is 25.5-6 = 19.5 chips. In feet, 19.5 chips are 1 9.5 x 100 = 1950 feet = path length CU. The position of the user terminal is Z That is, 2250 feet from antenna A and 1750 feet from antenna B. I It can be identified at the intersection of the circle B of the antenna and the circle C of 1950 feet from the antenna C. Alternatively, position measurement can be achieved by calculating the intersection of two hyperbolas. First twin The curve is the distance difference between the two focal points, that is, the delay between antenna A and antenna B. It is a locus of points that make the distance difference proportional to the difference constant. Is the second hyperbola two focal points? Distance difference between them, that is, between antenna B and antenna C (or antenna A and antenna) It is a locus of points that make the distance difference proportional to the delay difference (with Tena C) constant. Ante Na A and antenna B are the focal points of the first hyperbola, antenna B and antenna C is the focal point of the second hyperbola. In this way, to achieve the first distance measurement Calculates the subscriber position without the need for bidirectional signal exchange between the user terminal and the transfer station. I can put it out. Location service (Figs. 18 and 19) The subscriber station receiver receives information from a known point via three different routes. Therefore, the position is specified by measuring the time when the message arrives with respect to the fixed reference time. Information can be calculated. Measurement accuracy depends on chip speed, but 10 megachips per second The tip speed is accurate enough. How much signal processing is possible on the user terminal There are several methods for position measurement and display, depending on the location. That choice is that It depends on who actually uses the information. Currently using only relative chip offset information It can be quite passive as it gets the reference from the cell at the position. User is GPS system It is also possible to locally calculate the position of your own station and display it as in the case of using the To. The GPS receiver displays longitude and latitude values. Location information service provider You can also return it to the science center. The processing center specifies the longitude and latitude value of the specific street. Convert to location information with geographical meaning such as lock number. Local positioning is especially attractive to people with security and health concerns .. The service center manager can report to the police and designated family members, or the service center Abnormal condition inspection stuff can be placed as part of the special charge .. The service center will notify each individual of their current location at a nominal rate or if desired Of course, it is possible to indicate the route to the destination. Pedestrian or These services can be provided to users who are vehicle users. Detailed guidance to the destination Na Guidance may be provided all at once, and will be provided in the process of the user moving according to the suggested route. It may be a specific continuous intersection prompt to be provided. This prompt is on the right at the next intersection It may be in the form of voice commands such as fold or text display. Delivery truck, ta Xie, ambulance, fire engine, etc. are special to show a map of the relevant area with information It can also be equipped with a display screen. Change guidance according to changes in road congestion You can also do it. The advantages of this invention are significantly increased public safety, convenience and productivity. Is to be done. Antenna in order to demonstrate accurate positioning performance in the above system configuration The separation between them is large enough. Hula caused by obstacles that cause interference Ann to ensure sufficient independent paths to avoid framing Sufficient to reduce the triangulation error to a very small value by placing the tena Separation between maintainers. The additional cost associated with optimizing position measurement performance is negligible. Position measurement information processing is performed by a third-party provider who owns and manages the position measurement center. Do. Positioning services can be achieved in several ways. A suitable method is position measurement A method of constructing and maintaining a fixed file to make a user terminal a storage for all location information Is. The location measurement center is via the regular public exchange network when information is needed (preferably) Or a data packet) to issue an inquiry to the user terminal. Sending for confidentiality and It is preferable to provide provision for concealment of the access code. The user terminal depends on the user In response to the operation, the position measurement information is sent to the position measurement center via the public exchange network. To. For example, when the user presses the alarm button, the wireless transmitter will be accompanied by position measurement information. Send an alarm message to the location measurement center. The position measurement center is pre-configured Respond according to the level of guidance and contract services. User terminal is code offset information This cellular system needs to be provided to the user terminal as it generates information internally. Additional information is the distance from the user terminal to one of the base stations / antennas, one way Only the distinction between round trips. The distance information provided as a service to the user is the base station / The antenna must be identified. All measurements are in a time window of 100 ms Must be done in time, if it is not reached due to vehicle movement between measurement points The error to be done becomes excessive. Perform position measurements on stopped vehicles or pedestrians The time window to do is much longer as there is little or no movement between measurement points in time. It doesn't matter. Therefore, the distance measurement value sent from this system to the user terminal is The distance displayed in the eat display, the time displayed in milliseconds, and the name of the measuring subject. User When it receives a distance message, it accumulates that message and some are different from each other Measure the sign offset to the antenna, and if the signal level is sufficient, the complex information The information is stored in the position measurement file. The position measurement file is wirelessly received by the user terminal. It is retained until the aircraft receives a new distance message, at which point the message is received. The user terminal wireless receiver performs the code offset measurement again and updates the location information file. New. The position measurement center inquires about the position of the user terminal wireless device. Is issued, the wireless device sends the contents of the location information file. Position measurement center Processes that data to provide very accurate map data, that is, the location on a particular street. Convert to data (can be displayed on a normal street map). This system allows subscribers Normally 1 / min when in active receive mode for call standby with the receiver turned on Measure the distance to the subscriber station each time. The time interval of distance measurement is variable, you It can be adjusted according to the needs of The. The system sends this new distance value to the subscriber station The subscriber station stores this in a file, thereby measuring a new sign offset. Make a decision. While the subscriber is talking, the user terminal is transmitting and the base station is every 10 seconds The system adds a message when the distance fluctuates by more than 100 feet. Send to the immigration office. Each time the user terminal receives the distance measurement value, the local code offset is set. Update the file with the measured values. User device location files are updated every second or more frequently as needed It will be understood. Therefore, this system has a distance of approximately 100 feet or more. The position of all active users within can be grasped. Higher accuracy and more Of course, frequent data updates are possible, but it also imposes a load on the data link. The number of these high-performance subscriber stations is not in principle and needs to be an exception. The user When you press the alarm button of a portable terminal, the contents of the terminal placement specific file are sent three times. And that is because the system calculates a new distance and sends a message to the user terminal. It has a sufficient length. The user terminal makes several offset measurements and a new distance is displayed. Send Il 3 times. The alert message repeats once every 30 seconds until the battery runs out. An audible sound is emitted to the user terminal wireless device each time a wireless alarm message is transmitted ( A module (with a built-in dedicated battery) can be added. This system locates raw raw material to be converted into human-readable map data Information is generated on the user terminal. In general, of basic longitude, latitude, angle and distance The calculated value is fine. However, this data is in a format that is readily available to the general public. Need a third party to convert as a service business. User terminal measures basic position Since we have information, we provide that information to legitimate rights holders who make requests to user terminals. it can. The location information processing center periodically makes inquiries to contracted user terminals, and then Keep a file about the current location of these terminals. Join with health problems One potential service for a person is a service that monitors during exercise. Subscriber A place where you have stopped for a long time in an abnormal place and do not press the alarm button In that case, the operator of the position measurement center may request a pulse etc. from the stopped subscriber. , Medical technicians can be dispatched. In case of emergency, position measurement center The operator knows the current position of the subscriber for assistance dispatch. On the other hand, the alarm button If pressed, the alert message will be a positioning sensor prepared for emergency response. Addressed to Tar. By tracking the user terminal and providing assistance as a result of some action The possible functions are useful for various purposes. Search for stolen vehicles, detect traffic congestion, confusion routes Prevention and reporting of tampering are cited as some examples of applications of the present invention. To. The systems differ from each other, especially in a distributed configuration, as mentioned above. A consistent zero time reference that spans base stations is required. When the zero time reference is available, the signal The time required to resynchronize when jumping between antennas has been reduced, and the search channel has been reduced. Helps switch. The above-mentioned position measurement application capability is described above for some user terminals. By placing them in fixed positions as per, and setting the appropriate zero time to those positions, This system allows for periodic self-calibration. This system is it Save the correct answer in the central processing unit while scanning the checkpoints Allows false indications if the system is out of calibration. Execution delay The same checkpoint is applied during the process of introducing variable delay by increasing or decreasing Use. The calibration process can be easily automated. Automation can be put into production in two ways. No. Method 1 scans the checkpoints once a minute to see if any errors occur. Judge. When the error reaches a significant level, the communication system will set the position measurement center. Contact the center and tell the center which corrections should be included for position measurement calculations. The latter method requires cooperation between the communication system and the position measurement center. More autonomy Method would be desired. As mentioned above, the communication system itself has check points. Capable of scanning and inserting or removing delay 1806 in the path This will allow us to maintain a proper "zero" state. Figure 18 illustrates a system with self-calibration. Once every minute, this system is for each Make an inquiry to the check point. As a result, the distance measurement is sent to checkpoint 1802 , Then the checkpoint receiver adds the code offset reading and the contents of the position file To processor 1804, where the file received contains the correct measurements Compared to the file. If the difference exceeds the threshold, processor 1804 measures Calculates the change in delay required to keep the fixed value within the allowable value range, and determines the corrected value in the control device. Send to. The controller contains a variable delay 1806 to be inserted for each antenna. Keep the ill. The controller changes the delay value in the file and compares new measurements Incorporate for positive activation. Changes that require significant changes in delay values are unlikely to occur However, in the unlikely event that such a change occurs, the measurement including the section to be recalibrated is a control device. Does not start. In this way, the position measurement function provides services to the communication system. To do. Self-calibration significantly reduces installation costs and is a cheaper system component Will be available. Positioning-related communications between the antenna device and the subscriber terminal are several different from each other. Can be divided into links. The functions of these different links are (1) distance measurement. (Requires bidirectional link but no call traffic), (2) Measurement to subscriber terminal Information transmission (one-way data link except for possible retransmission requests), (3) Code Fuset measurement (only user terminal required for reception, no data transfer), (4) Sending the position measurement file to the stationary measurement center or the communication processor 1804 (de) The data link can be unidirectional or bidirectional). Distance measurement is possible only in the system And because it requires a two-way link when a regular call channel is established It is feasible and the system forms a short reciprocating connection when the terminal is in receive mode. There must be. The sign number between the transmission signal to the user terminal and the reception signal from the user terminal at the base station A bidirectional link is needed to measure the phase difference. In Figure 18, this feature is a processor Achieved in 1804. In that sense, this system has a PN chip width pulse. It operates in the same way as a radar using. One-way data that conveys distance information to the user terminal The link message is usually a single message containing an error correction code and is a user terminal. Needs to return an input confirmation message to the base station. Input confirmation message It may be sent independently, or it may be sent in addition to a part of the distance measurement function. Code offset information is also stored in files that can be accessed from outside the system. .. As mentioned above, the user terminals have different time points from three different antennas. One receiver is time-shared via the three independent routes that occur in. Therefore The receiver then sequentially tracks three independent paths. The PN code of each route is the same Yes, as mentioned above, the code has the same starting point for each antenna, but is it a user terminal? Due to the difference in distance to these three antennas, the sign arriving at the user terminal is They have different code phases from each other. However, the system cycle is steep for each antenna As it fluctuates quickly, the receiver circulates between the received signals from each of these antennas. To. Therefore, the receiver has three start states and different time slots from each other. Keep track of and keep. Precise time already at the end of each time slot Knowledge, the previous state was stored in the computer and assigned to the same antenna Recovered at the start of the next time slot. Therefore, this processor is three mutual It emulates a very different receiver. The receiver is locked to another antenna Rapidly adjusts the slight drift that occurs during. The receiver has a specific start state Note that it has. In this way, the PN sequence is the user terminal and the first a. The distance difference between the route to the antenna and the route between the user terminal and the second antenna Receive a shift to compensate. This difference is the sign offset. That is, the sign This is because the No. offset measures the distance difference. Therefore, up to the second antenna The distance is also known without the need for closed-loop (bidirectional) measurements. Third antenna The same process is performed for. It is also possible to make additional input to the location file, that is, four or more inputs, at the user end. Use the normal search mode used by the terminal radio device to identify channel switching destination candidates. It can be used. The user terminal radio device searches for a pilot code from a nearby antenna. Search and the signals from those antennas are from the three antennas currently in use Is also good quality. If it is judged to be of good quality, the user terminal is in the right place. Notify the system that supplements are available. The search process starts from time slot 1 It starts with the incoming PN signal, and if nothing is found in that state, the radio device will be 1 Reconstruct by adding the data to the route length. The radio finds a signal or exceeds the distance threshold Tip addition is continued until. When the distance threshold is exceeded, the PN generator will be replaced with a new pyro. Reset to G code and restart from zero offset distance. Therefore, the wireless device When he found a new pilot code, the number of chips he had added up to that point. Is known to wireless devices. The number of chips added is also the sign offset. This code Position information file with fuset value along with code and time data for antenna identification Accumulate in. The radio will take these data inputs and the data will be better than the current signal Accumulate in position measurement file even if it is not quality. The radio scans the new antenna When found, the four best investigation results are accumulated in the position measurement file. With continuation of scanning In both cases, the older input data is replaced with the new, better quality input data. Since the required information is available in the user terminal direct measurement file in this way, This information will be available to qualified requesters. Position measurement service is available to carriers Or it may be offered by an independent service provider that competes with it. other than that There could also be a large private positioning center operated by a large number of vehicle owners. Position measurement center 1902 receives position measurement files via the public communication switch network. To. See Figure 19. The switching network may be a circuit switching network or a packet switching network. This species A packet switching network is sufficient for this purpose.<img file="JPH10509287A_D0001.tif" /><img file="JPH10509287A_D0002.tif" /><img file="JPH10509287A_D0003.tif" /><img file="JPH10509287A_D0004.tif" /><img file="JPH10509287A_D0005.tif" /><img file="JPH10509287A_D0006.tif" /><img file="JPH10509287A_D0007.tif" /><img file="JPH10509287A_D0008.tif" /><img file="JPH10509287A_D0009.tif" />
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| EP1615353A3 | European Patent Office (EPO) | A3 | |
| DE69535615D1 | Germany | D1 | |
| DK0779991T3 | Denmark | T3 | |
| ES2296294T3 | Spain | T3 | |
| JP4080529B2 | Japan | B2 | |
| EP1926229A2 | European Patent Office (EPO) | A2 | |
| EP1926230A2 | European Patent Office (EPO) | A2 | |
| EP1926231A2 | European Patent Office (EPO) | A2 | |
| EP1926232A2 | European Patent Office (EPO) | A2 | |
| EP1933475A2 | European Patent Office (EPO) | A2 | |
| DE69535615T2 | Germany | T2 | |
| JP2008211829A | Japan | A | |
| US2008219233A1 | United States of America | A1 | |
| US2008219234A1 | United States of America | A1 | |
| JP2008228320A | Japan | A | |
| JP2008236763A | Japan | A | |
| US7463608B2 | United States of America | B2 | |
| HK1118980A1 | Hong Kong, China | A1 | |
| HK1118982A1 | Hong Kong, China | A1 | |
| US7554964B2 | United States of America | B2 | |
| EP1615353B1 | European Patent Office (EPO) | B1 | |
| DE69536031D1 | Germany | D1 | |
| JP2010022048A | Japan | A | |
| JP4418776B2 | Japan | B2 | |
| DK1615353T3 | Denmark | T3 | |
| JP4457117B2 | Japan | B2 | |
| JP4457118B2 | Japan | B2 | |
| JP4457157B2 | Japan | B2 | |
| JP4457158B2 | Japan | B2 | |
| ES2339124T3 | Spain | T3 | |
| EP1564907B1 | European Patent Office (EPO) | B1 | |
| EP1926232A3 | European Patent Office (EPO) | A3 | |
| EP1933475A3 | European Patent Office (EPO) | A3 | |
| DE69536092D1 | Germany | D1 | |
| JP2010206826A | Japan | A | |
| EP1926231A3 | European Patent Office (EPO) | A3 | |
| EP2293462A2 | European Patent Office (EPO) | A2 | |
| JP4665009B2 | Japan | B2 | |
| EP2309660A2 | European Patent Office (EPO) | A2 | |
| JP4689748B2 | Japan | B2 | |
| FI121945B | Finland | B | |
| JP2011151829A | Japan | A | |
| EP1926229A3 | European Patent Office (EPO) | A3 | |
| EP1926230A3 | European Patent Office (EPO) | A3 | |
| EP2309660A3 | European Patent Office (EPO) | A3 | |
| EP2293462A3 | European Patent Office (EPO) | A3 | |
| US8130696B2 | United States of America | B2 | |
| US8155017B2 | United States of America | B2 | |
| JP2012120222A | Japan | A | |
| JP4964994B2 | Japan | B2 | |
| US8228886B2 | United States of America | B2 | |
| US8248988B2 | United States of America | B2 | |
| EP1926232B1 | European Patent Office (EPO) | B1 | |
| DK1926232T3 | Denmark | T3 | |
| JP5113214B2 | Japan | B2 | |
| ES2396385T3 | Spain | T3 | |
| US8432867B2 | United States of America | B2 | |
| EP1933475B1 | European Patent Office (EPO) | B1 |
32 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Cancellation because of completion of termEXPY | EXPY | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
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| Renewal fee payment (event date is renewal date of database)FPAY | FPAY | |
| Renewal fee payment (event date is renewal date of database)FPAY | FPAY | |
| Written notification of registration of transferJAPANESE INTERMEDIATE CODE: R350R350 | R350 | |
| Renewal fee payment (event date is renewal date of database)FPAY | FPAY | |
| Request for change of ownership or part of ownershipJAPANESE INTERMEDIATE CODE: R313113S111 | S111 | |
| Renewal fee payment (event date is renewal date of database)FPAY | FPAY | |
| Renewal fee payment (event date is renewal date of database)FPAY | FPAY | |
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| Certificate of patent or registration of utility modelJAPANESE INTERMEDIATE CODE: R150R150 | R150 | |
| First payment of annual fees (during grant procedure)JAPANESE INTERMEDIATE CODE: A61A61 | A61 | |
| Written decision to grant a patent or to grant a registration (utility model)JAPANESE INTERMEDIATE CODE: A01A01 | A01 | |
| Decision of grant or rejection writtenTRDD | TRDD | |
| Written amendmentJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Notification of appointment of power of sub attorneyJAPANESE INTERMEDIATE CODE: A7433RD13 | RD13 | |
| Written permission of extension of timeJAPANESE INTERMEDIATE CODE: A602A602 | A602 | |
| Written request for extension of timeJAPANESE INTERMEDIATE CODE: A601A601 | A601 | |
| Notification of reasons for refusalJAPANESE INTERMEDIATE CODE: A131A131 | A131 | |
| Notification of resignation of power of attorneyJAPANESE INTERMEDIATE CODE: A7424RD04 | RD04 | |
| Notification of acceptance of power of attorneyJAPANESE INTERMEDIATE CODE: A7422RD02 | RD02 | |
| Written amendmentJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Written permission of extension of timeJAPANESE INTERMEDIATE CODE: A602A602 | A602 | |
| Written request for extension of timeJAPANESE INTERMEDIATE CODE: A601A601 | A601 | |
| Notification of reasons for refusalJAPANESE INTERMEDIATE CODE: A131A131 | A131 | |
| Written amendmentJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Written permission of extension of timeJAPANESE INTERMEDIATE CODE: A602A602 | A602 | |
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| Notification of reasons for refusalJAPANESE INTERMEDIATE CODE: A131A131 | A131 |
Numbers
- Publication
- 10-509287
- Publication, DOCDB
- H10509287
- Publication, EPODOC
- JPH10509287
- Application
- 8510218
- Application, DOCDB
- 51021896
- Application, EPODOC
- JP19960510218
Titles2
- Japanese
- 時間およびスペースダイバーシチ送信を伴う無線電話分配システム
- English
- PROBLEM TO BE SOLVED: To provide a radiotelephone distribution system with time and space diversity transmission.
Classification
- CPC, 11
- H04B7/0671
- H04B7/0604
- G01S5/10
- G01S5/14
- H01Q21/29
- H04B7/022
- H04B7/082
- H04B7/0857
- H04B7/0888
- H04W56/00
- H04W64/00
- IPC, 15
- G01S5 10
- G01S19 09
- G01S19 46
- H04B7 02
- H04B7 04
- H04B7 06
- H04B7 08
- H04B7 24
- H04B7 26
- H04L1 06
- H04L9 32
- H04W4 90
- H04W28 04
- H04W56 00
- H04W64 00
Designated states4
- Regional, 4
- Sweden
- Togo
- Uganda
- Viet Nam