Method and apparatus for addressing a wireless communication station with a dynamically-assigned address
Abstract
(57) [Summary] A method for giving a dynamically assigned address to a wireless communication station (52) and a corresponding device. This dynamically assigned address serves as a temporary address for routing data to the wireless communication station (52). By assigning a temporary address to the wireless communication station (52), it becomes possible to transmit data such as packet data between the wireless communication station (52) and the corresponding host (54). When communication with the wireless communication station (52) is completed, the temporary address can be reassigned and later reused for communication with another wireless communication station.
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- 1【特許請求の範囲】 1. 無線通信局と無線通信を行うための基地局と、該基地局とデータ通信を行 うためのサービングスイッチングノードと、前記サービングスイッチングノード を通信ネットワークに接続するためのゲートウェイスイッチングノードと、デー タ通信のため前記ゲートウェイスイッチングノードと前記サービングスイッチン グノードの両方に接続された複数のアドレスサーバと、を含む前記通信ネットワ ークを経由して、選択された通信局と無線通信局との間の通信を行うための方法 であって、無線通信局にネットワークアドレスを動的に割り当てるように改善す るために、 通信ネットワークにアクセスして通信ネットワークを通してデータを伝えるた めに無線通信局の登録を要求するための登録要求を作成するステップであって、 前記複数のアドレスサーバの中の指定された一つのアドレスサーバによる、動的 に割り当てられるアドレスを無線通信局に割り当てる要求が前記登録要求に含ま れるような登録要求を作成するステップと、 前記作成ステップの間に作成された登録要求をサービングスイッチングノード で検出するステップと、 前記検出ステップの間に検出された登録要求の表示を前記指定されたアドレス サーバに転送するステップと、 前記転送ステップの間に前記指定されたアドレスサーバに転送される登録要求 の表示に応答して前記指定されたアドレスサーバの中で、動的に割り当てられる アドレスを無線通信局に割り当てるステップと、 前記動的に割り当てられるアドレスで発着するデータメッセージを取り扱うべ き前記ゲートウェイスイッチングノードのネットワーク識別子を前記アドレスサ ーバの中で結合するステップと、 前記指定されたアドレスサーバから前記サービングスイッチングノードに前記 動的に割り当てられるアドレスとゲートウェイスイッチングノードの結合された ネットワーク識別子とを返送するステップと、 前記サービングスイッチングノードから無線通信局に前記動的に割り当てられ るアドレスを与えるステップと、 を含む方法。 2. 請求項1の方法であって、選択された通信局と無線通信局との間でデータ を伝えるステップも含まれる、方法。 3. 請求項2の方法であって、前記伝えるステップの間に通信されるデータに 、選択された通信局から無線通信局に通信されるデータが含まれており、前記伝 えるステップに更に、前記無線通信局に与えるステップの間に動的に割り当てら れるアドレスをデータの宛て先とするステップが含まれる、方法。 4. 請求項1の方法であって、前記作成するステップの間に作成される登録要 求が無線通信局によって作成される、方法。 5. 請求項1の方法であって、前記作成するステップの間に作成される登録要 求に、無線通信局を永久に識別する永久識別子が含まれている、方法。 6. 請求項1の方法であって、通信ネットワークは一般パケット無線サービス (general packet radio services)を提供する 無線電話通信システムの無線電話通信ネットワークで構成され、前記検出するス テップの間に検出される登録要求は前記基地局と前記サービングスイッチングノ ードの両方によって検出される、方法。 7. 請求項6の方法であって、無線電話通信ネットワークにホーム公衆陸上移 動ネットワーク(home public land mobile netw ork)とビジテッド公衆陸上移動ネットワーク(visited publi c land mobile network)とが含まれ、前記転送するステ ップの間に登録要求の表示がそれに転送される指定されたアドレスサーバがビジ テッド公衆陸上移動ネットワークの一部を構成する、方法。 8. 請求項6の方法であって、通信ネットワークにホーム公衆陸上移動ネット ワークとビジテッド公衆陸上移動ネットワークが含まれ、前記転送するステップ の間に登録要求の表示がそれに転送される指定されたアドレスサーバがホーム公 衆陸上移動ネットワークの一部を構成する、方法。 9. 請求項7の方法であって、前記ネットワークの中の前記複数のアドレスサ ーバに少なくとも、前記ホーム公衆陸上移動ネットワークの中に配置された第一 のアドレスサーバと前記ビジテッド公衆陸上移動ネットワークの中に配置された 第二のアドレスサーバとが含まれ、前記転送するステップに、前記少なくとも第 一のアドレスサーバと第二のアドレスサーバの中の選択された一方に登録要求の 表示を転送することが含まれる、方法。 10. 請求項6の方法であって、一般パケット無線サービスを提供する無線電 話通信システムに移動通信用グローバルシステム(GSM:Global Sy stem for Mobile communication)の無線電話通 信システムが含まれ、編入手順に応答して無線通信局にパケット無線サービスが 提供され、前記登録するステップの間に作成される登録要求の少なくとも一部は 編入手順に引き続いて作成される、方法。 11. 請求項10の方法であって、編入手順に引き続いて作成される登録要求 の一部に、無線通信局への動的に割り当てられるアドレスの割り当てを要求する ためのルーチングコンテキスト作動要求(activate routing context request)が含まれる、方法。 12. 請求項11の方法であって、ルーチングコンテキスト作動要求に、選択 されたアドレスサーバによる動的に割り当てられるアドレスの割り当て要求が含 まれる、方法。 13. 選択された通信局と、無線通信局と、通信ネットワークとをそなえる通 信システムであって、前記通信ネットワークに、前記無線通信局と無線通信を行 うための基地局と、該基地局とデータ通信を行うためのサービングスイッチング ノードと、前記サービングスイッチングノードを前記ネットワークに接続するた めのゲートウェイスイッチングノードと、データ通信のため前記ゲートウェイス イッチングノードと前記サービングスイッチングノードの両方に接続された複数 のアドレスサーバと、が含まれる通信システムにおいて、無線通信局にネットワ ークアドレスを動的に割り当てるように改善された装置であって、 無線通信局に配置された登録要求発生器であって、通信ネットワークにアクセ スして通信ネットワークを通してパケットデータを伝えるために無線通信局の登 録を要求する登録要求を発生する登録要求発生器であり、前記複数のアドレスサ ーバの中の指定された一つのアドレスサーバによる動的に割り当てられるアドレ スの無線通信局への割り当ての要求が前記登録要求に含まれる、登録要求発生器 と、 サービングスイッチングノードに配置され、通信ネットワークに結合された検 出器であって、前記登録要求発生器が作成する登録要求を検出するための検出器 と、 前記選択されたアドレスサーバの中に配置され、前記検出器による登録要求の 検出に続く前記サービングスイッチングノードからのメッセージに応答して動作 するアドレス割り当て器であって、動的に割り当てられるアドレスを無線通信局 に割り当てるためのアドレス割り当て器と、 前記動的に割り当てられるアドレスに発着するデータメッセージを取り扱うべ きゲートウェイスイッチングノードのネットワーク識別子を前記選択されたアド レスサーバの中で結合するための手段と、 指定されたアドレスサーバから前記サービングスイッチングノードに前記動的 に割り当てられるアドレスと、ゲートウェイスイッチングノードの結合されたネ ットワーク識別子とを返送するための手段と、 前記アドレス割り当て器により割り当てられた動的に割り当てられるアドレス の表示を受信するように結合され、動的に割り当てられるアドレスの表示を無線 通信局に送信するための送信器と、 を含む装置。 14. 無線通信局と、選択された通信局と、通信ネットワークとをそなえる通 信システムであって、前記通信ネットワークに、前記無線通信局と無線通信を行 うための基地局と、該基地局とデータ通信を行うためのサービングスイッチング ノードと、前記サービングスイッチングノードを前記ネットワークに接続するた めのゲートウェイスイッチングノードと、データ通信のため前記ゲートウェイス イッチングノードと前記サービングスイッチングノードの両方に接続された複数 のアドレスサーバと、が含まれる通信システムにおいて、無線通信局に動的に割 り当てられるアドレスを動的に割り当てるように改善された通信ネットワーク用 装置であって、 サービングスイッチングノードに配置され、無線通信局が作成する登録要求を 検出するための検出器であって、動的に割り当てられるアドレスの無線通信局へ の割り当ての要求が登録要求に含まれる、検出器と、 前記選択されたアドレスサーバの中に配置され、前記検出器による登録要求の 検出に続く前記サービングスイッチングノードからのメッセージに応答して動作 するアドレス割り当て器であって、動的に割り当てられるアドレスを無線通信局 に割り当てるためのアドレス割り当て器と、 前記動的に割り当てられるアドレスに発着するデータメッセージを取り扱うべ きゲートウェイスイッチングノードのネットワーク識別子を前記選択されたアド レスサーバの中で結合するための手段と、 指定されたアドレスサーバから前記サービングスイッチングノードに前記動的 に割り当てられるアドレスと、ゲートウェイスイッチングノードの結合されたネ ットワーク識別子とを返送するための手段と、 前記アドレス割り当て器により割り当てられた動的に割り当てられるアドレス の表示を受信するように結合され、動的に割り当てられるアドレスの表示を無線 通信局に送信するための送信器と、 を含む装置。 15. 無線通信局と、通信ネットワークとをそなえるデータ通信システムであ って、前記通信ネットワークに、前記無線通信局と無線通信を行うための基地局 と、該基地局とデータ通信を行うためのサービングスイッチングノードと、前記 サービングスイッチングノードを前記ネットワークに接続するためのゲートウェ イスイッチングノードと、データ通信のため前記ゲートウェイスイッチングノー ドと前記サービングスイッチングノードの両方に接続された複数のアドレスサー バと、が含まれるデータ通信システムにおいて、動的に割り当てられるアドレス を無線通信局に与えるように改善された無線通信局用の装置であって、 無線通信局に配置された登録要求発生器であって、通信ネットワークにアクセ スして通信ネットワークを通してパケットデータを伝えるために無線通信局の登 録を要求する登録要求を発生する登録要求発生器であり、前記複数のアドレスサ ーバの中の指定された一つのアドレスサーバによる動的に割り当てられるアドレ スの無線通信局への割り当ての要求が前記登録要求に含まれる、登録要求発生器 と、 前記複数のアドレスサーバの中の前記指定された一つのアドレスサーバにより 通信ネットワークで選択され、無線通信局に送信される、動的に割り当てられる アドレスの表示を受信するための受信器と、 を含む装置。 16. 選択された通信局と無線通信局との間の通信ネットワークの、ルーチン グテーブルによって制御されるパケットスイッチを通してデータを送るためのル ーチングコンテキストを作成するためのルーチングコンテキスト発生器であって 、 無線通信局の動的に割り当てられるアドレスの表示と、選択された通信局と無 線通信局に関連するルーチング情報の表示を受信するように結合された入力端子 と、 入力される表示を受信するように入力端子に結合されたルーチングコンテキス ト判定器であって、選択された通信局と無線通信局との間のルーチングコンテキ ストを判定し、それに応答して、ルーチングテーブルを更新するためのルーチン グテーブル更新信号を作成するためのルーチングコンテキスト判定器と、 を含むルーチングコンテキスト発生器。 17. 選択された通信局と通信するために通信局内で動作し得る無線通信局用 のパケットデータ発生器であって、 無線通信局と結合されるべき動的に割り当てられるアドレスを受信するための 受信器と、 前記受信器が受信した動的に割り当てられるアドレスの表示を受信するように 結合されたデータフォーマット器であって、選択された通信局と、動的に割り当 てられるアドレスを宛て先とする無線通信局との間のエンドツーエン接続を可能 とするように、無線通信局が作成するデータをフォーマット化するデータフォー マット器と、 を含むパケットデータ発生器。 18. 無線トランシーバに結合されたホストで構成される無線通信局を公衆陸 上移動ネットワークに編入するための編入シーケンスであって、 ホストと無線トランシーバとの間にリンクを確立することと、 無線トランシーバと公衆陸上移動ネットワークのサービングパケットサービス ノードとの間の編入手順を遂行することと、 サービングパケットサービスノードにルーチングコンテキスト作動要求を送出 することと、 アドレスサーバに一時アドレス要求を転送することと、 ホストに一時アドレスを割り当てることと、 サービングパケットスイッチノードに一時アドレスを与えることと、 無線トランシーバに、一時アドレスの表示を含むルーチングコンテキスト作動 応答を送ることと、 ホストに一時アドレスを与えることと、 を含む編入シーケンス。 19. ホストと無線トランシーバで構成される無線通信局に公衆陸上移動ネッ トワークのアドレスサーバにより割り当てられた一時アドレスの割り当てを解除 するためのコンテキスト作動終了シーケンスであって、 ホストと無線トランシーバとの間に形成されたリンクに対する終了要求を作成 するステップと、 公衆陸上移動ネットワークのサービングパケットスイッチノードにコンテキス ト作動終了要求を送出するステップと、 ホストから一時アドレスの割り当てを解除するステップと、 サービングパケットスイッチノードに解放応答を返送するステップと、 無線トランシーバにルーチングコンテキスト作動終了応答を転送することと、 を含むコンテキスト作動終了シーケンス。
2 paragraphs, as filed
Description: TECHNICAL FIELD [Detailed description of the invention]
Methods and devices for addressing dynamically assigned addresses to wireless communication stations The present invention generally transmits data, for example, packet wireless services to wireless communication stations. Is related to the transmission of packet data transmitted by the communication system that provides .. More specifically, the present invention is used for routing data to a communication station. Give the wireless communication station a dynamically assigned address that gives a temporary address to be Thing about the method to give and the corresponding device to realize the method Is. Temporary addresses are dynamically assigned to the communication station, so the data route to the communication station Ching can be optimized. With such optimized routines Reduced interim delay increases the communication throughput rate of data to the communication station To. Then, by giving the communication station a dynamically assigned address, the communication station Can transmit data to wireless communication stations even if it does not have a permanent address. This avoids the problems associated with the limited supply of permanent addresses. The present invention is coupled to a packet data source, for example, via a radiotelephone communication system. Used to optimize packet data routing to laptops can do. Such packet data is, for example, "email" or Can form a "facsimile mail". Laptop address is dynamically split Because it can be assigned, it is optimal for routing packet data to a laptop computer. Can be done by oneself. Background of the invention With advances in the fields of electronics and communications, many new types of communication systems Has become possible to introduce and commercialize. Information in various locations in ways previously not possible You can tell freely. The field of cellular telephones is a substitute for communication systems made possible by these advances. It is a superficial one. Communication by wireless telephone system such as cellular telephone system Requires a fixed wired connection to enable communication between the transmitting and receiving stations It is beneficial because it is not done. Therefore, a fixed connection for communication, A cell to communicate when a wired connection is inconvenient or impractical Radiotelephone communication systems such as the Ra communication system are particularly useful. Due to constant progress in the field of cellular telephones and other types of radiotelephone communications New communication by wireless telephone network such as existing cellular network Services and new formats can be introduced. For example, packet day to a communication network such as an existing cellular network Communication function, for example, general packet radio service (GPRS: Genera) l Packet Radio Service), has been proposed to give .. Information to be transmitted between the transmitting station and the receiving station is formed in individual data packets. To. Individual packets can be sent from the transmitting station to the receiving station via a communication channel. Emotion Since the information is transmitted by individual packets, the transmitting station is required to send individual packets. Use the channel only for the required period. Therefore, the channel is usually multiple A shared channel used by a number of transmitters. Due to the commonality of shared channels, packets of data that the transmitting station should send are shared. You may have to queue until the channel is available. Shi However, the shared channel is shared and dedicated to the transmitting station for packet communication. Since there is no need to assign a communication channel, the cost of transmitting data on a shared channel Can be allocated to a large number of users. Communication via the Internet Communication by communication and paging network also transmits packet data. It is a typical communication system used. The above GSM digital cellular communication network, on the other hand, GPRS The introduction of the cellular communication system was proposed and the proposed standard for it was published. It is a typical one of Tem. GSM mobile stations made to meet these standards Packet data can be transmitted via the GSM network. Note Paso Hosts like Con are mobile stations or, for example, PCMCIA wireless modem cards Packet data can be sent and received when properly connected to. With mobile station The host or similar device may be collectively referred to as a wireless communication station. In order to transmit a packet of data to a wireless communication station, the destination of the packet is wirelessly communicated. Must be the identification address of the credit station. Internet Protocol (IP: Internet protocol) address is routed to the communication station Identification address that can be used to address packets of data that should be It is a typical one of. Of course, the IP address is the Internet Protocol Therefore, it is used when performing transmission. An address similar to this is the X.25 Pro Used when data should be transmitted according to other protocols such as Tocol. A number of different types of services performed by communicating packet data are realized I came. For example, enabling user-to-user communication between service subscribers Messaging services can be achieved by communicating packet data To. Email or fax is a typical messaging service It is a thing. In such services, accumulated mail boxing (store- and-forward mailboxing), sometimes information editing, processing, And storage devices are used along with message processing functions such as conversion. Certain types of search services can also be performed by communicating packet data. This Services such as access the information stored in the database center Will be possible. At the request of such subscribers, such databases The information stored in the center is transmitted to the subscribers. Internet world Provided according to the Wide Web (WWW: World Wide Web) A search service is a typical search service. Similarly for Tele-action services, Packet Day It can be done by communication. Teleaction services are usually in small quantities That is, it is characterized by processing (short duration). Credit card confirmation, lottery ticket All communications for science, utilities meter reading, and electronic surveillance systems are tele It is a typical action service. The distribution service can also be performed by communicating packet data. like this The service is a one-way flow of data from a network location to many other locations. It has a characteristic. News, weather, and traffic reports, as well as products or services The promotion of bis is a typical example of such a distribution service. Certain conversation services can also be provided by communicating packet data. Meeting Talking services are real-time, end-to-en between subscribers of such services. Provides two-way communication by transferring information. Internet Telnet (TM) : Telnet) is a typical example of such a distribution service. Certain dispatch services can also be provided by communicating packet data. This is a typical interactive service. Such services are network Bi-directional flow of information from a certain location (for example, dispatch source) and from other users There is a feature in. Taxis and utilities are typical of such dispatch services. Is. Conference services are yet another type of communication that can be done by communicating packet data. It is a service. Such conferencing services provide real-time information among a large number of users. Provides multi-directional communication by transfer. The packet data is the identifier of the wireless communication station to which the packet data should be routed. Such transmission to a specific communication station is rare, although it must be addressed to Moreover, it usually happens only for a short time. For example, the messaging mentioned above The service sends the message before transmitting the messaging information to the wireless communication station. A storage device for storing information is usually used. Alternate to a wireless communication station The messaging information to be transmitted cannot reach the wireless communication station at a specific point in time. It doesn't matter. Message of messaging information The sender is the message of the wireless communication station All you need to know is your address, for example your email address. Once in the storage device Once memorized, the wireless station will obtain the received message from the storage device at any time thereafter. can do. Search, conversation, and teleaction services are all initiated by the wireless station .. Since the wireless communication station starts in this way, the service provider requests the service. All you need to know is the identification address of the wireless communication station used to do this. Shi Ta Therefore, the identification address does not have to be a permanent identifier that permanently represents the wireless communication station. I. Distribution services are typically broadcast throughout the broadcast area and are addressed to specific wireless stations. I can't. The information sender only knows the area code of the area where the information should be broadcast. Just do it. For dispatch services and conference services, the service provider is currently a wireless communication station. All you need to know is the identifier you are using. That is, the service provider In order to provide a dispatch station or conference station, the service provider is provided with a communication station ad. Les must be given. But this address is a permanent address No need. As mentioned above, in any of the above services, packet data is correctly sent to the wireless communication station. It is not necessary to represent the wireless communication station with a permanent identifier in order to send it. Wireless communication station instead By assigning a temporary identifier to, the data to be transmitted to the wireless communication station is temporarily known. It can be sent to the wireless communication station as a separate child. Link layer connection IETF RFC13 for information on how to obtain an IP address when configuring 32 PPP Internet Protocol Control Protocols (Intern) et Protocol Control Protocol) To. However, a temporary IP address, dial-up IP to represent the host device The use of addresses, or other temporary identifiers, was previously a quiesced host via a modem, etc. Has been used only to represent. Address of packet data to be transmitted to the wireless communication station To perform the above services using a temporary identifier instead of a permanent identifier as a destination Is beneficial. A wireless communication station by using a temporary address Data to the wireless station even if it does not have a permanent identifier assigned to it It becomes possible to convey. Furthermore, by assigning a temporary identifier to the wireless communication station Therefore, the routing of data to the wireless communication station can be optimized. Data When arching is optimized, communication delay time is minimized and throughput rate is reduced. Become the maximum. Therefore, what is needed is to be able to send the data to the wireless communication station. , This is a method of giving a dynamically assigned address to a wireless communication station. In that case , The destination of the data to be transmitted to the wireless communication station is the temporary address of the wireless communication station , That is, it can be a dynamically assigned address, which allows the data Can be transmitted to the wireless communication station. In view of this background, it is in data communication that the remarkable progress of the present invention has been derived. Related information. Outline of the invention The present invention dynamically allocates data to be routinely assigned to a wireless communication station. How to give the assigned address to the wireless communication station, and the corresponding device It is provided well. If the dynamically assigned address is the destination , The data is sent to the wireless communication station. The dynamically assigned address is that Gives a temporary address that allows routing of data to the wireless communication station. Since the temporary address is dynamically assigned to the wireless communication station, the data to the communication station Routine can be optimized. Communication delay time is minimized and sloop The trait is maximum. Also, the dynamically assigned address is assigned to the wireless communication station. By guessing, wireless communication without having to give a permanent address to the wireless communication station Communication between the station and the selected communication station can be achieved. Wireless communication instead You can give the station a dynamically assigned address, so it's a permanent address Problems associated with limited supply are avoided. The dynamically assigned addresses are: Form a temporary address that can be reassigned to. In one embodiment of the present invention, the wireless communication station is a home network and visited (vi). sited) Selected via a communication network with a network It can operate to communicate with a communication station. For example, the communication station is home network Registered on the network, but roaming into the visited network The visited network can assign a temporary identifier to its communication station. Wear. No need to access your home network. Visited network Packet data stored or created in is assigned to the communication station. By using the temporary identifier as the destination of the data, it can be sent to the communication station. Wear. If a temporary identifier is assigned to a communication station, the communication network and the communication station The communication station has a permanent identifier because packet data can be transmitted between them. Even without it, packet data can be transmitted between the communication network and the communication station. Wear. The wireless station is, for example, coupled to a mobile radiotelephone or PCMCIA wireless modem It may be formed with a laptop computer. Stored in packet data source or storage location Or data such as created packet data is a dynamically assigned ad By addressing the packet data to the reply, the packet data source can be reached. Or it is sent from the storage location to the wireless communication station. Divide the dynamically assigned address Due to the dynamic allocation to hit, the data can be sent to the laptop in the best way it can. As a result, the communication delay time is minimized and the throughput rate is maximized. Become. In one embodiment, circuit-switched data is routinely routed to a wireless communication station. Already In one embodiment, packet data is routed to a wireless communication station. Dynamically split By setting the assigned address as the destination of the packet data, the packet Use packet data communication by sending data to a wireless communication station It facilitates the execution of any of the many different types of services. For example, Messe Jing service, search service, teleaction service, delivery service, both Conversation services, dispatch services, and conference services are all examples of the present invention. Optimal for packet data communication with such services by incorporating This is an example of a service that can be easily converted. Therefore, in these and other aspects, the method and associated dressing A dynamically assigned address is dynamically assigned to the wireless communication station, thereby Communication between the selected communication station and the wireless communication station via the communication network It will be easy. A registration request is created to request the registration of the wireless communication station. Registration request Accesses the communication network and conveys data through the communication network Request registration of wireless communication station for. Dynamically assigned to registration requests Contains a request to assign a dress to a wireless station. Registration request is communication net Detected by the work. When a registration request is detected, the display of the registration request is the address Sent to the assignor. Respond to the display of registration requests sent to the address assigner Then, the dynamically assigned address is assigned to the wireless communication station. next, A dynamically assigned address is given to the radio station. A more complete understanding of the present invention and its scope is described in the following brief summary of the present invention. The following detailed description of the currently preferred embodiments, and the added claims. Can be obtained from. A brief description of the drawing FIG. 1 shows a partially functional block of a communication system in which an embodiment of the present invention can operate. The figure, part of which is a schematic diagram. FIG. 2 shows a GPRS transfer sequence in which one embodiment of the present invention forms part of it. Su. FIG. 3 shows the GPRS operation termination context routine Gusike of an embodiment of the present invention. Indicates the Fig. 4 shows a functional block diagram and a schematic diagram, similar to Fig. 1. Another way of operation of one embodiment of the invention is shown. FIG. 5 shows a public land mobile network (public) including an embodiment of the present invention. A partial functional block diagram of land mobile network) is shown. FIG. 6 shows a functional block diagram of a wireless communication station including an embodiment of the present invention. Description of the invention FIG. 1 shows an overall communication represented by 10 in which an embodiment of the present invention may operate. The system is shown. Communication system 10 here is a general packet radio system Bis (GPRS: General Packet Radio Service) Global System for Mobile Communications (GSM: Global Syste) m for GPRS, like Mobile communication) It is a communication system. Other communication systems can be represented in the same way. Be more careful What should be done is the operation of one embodiment of the present invention in which packet data is transmitted in the following description. Although the work is explained, other types of data, such as circuit-switched data, are also of the present invention. The same can be said in the alternative embodiment. That's what it means. Here, in communication system 10, the home public terrestrial mobile network (home- PLMN: home, public land mobile network ) 12 and visited public land mobile networks (visited-PLMN) : visited, public land mobile network) 14 is illustrated to include. Home PLMN and Visited PLMN It is interconnected via the Internet 16 connection. In the figure for simplicity A single visited PLMN is shown, but in real communication systems this is usually the case. Many PLMNs such as are included, and each PLMN is the illustrated internet. Connected together via an internet connection similar to the connection in G16. Home PLMN12 has a serving packet switch node (SPSN: se) rving packet switch node) 18 is included and S The PSN 12 is here coupled to base station 22. SPSN18 is home PL Gateway packet switch node (GPS) via MN backbone 24 Combined with N: gateway packet switch node) 26 To. GPSN26 forms a gateway to Internet 16 Form a connection with the Internet 16. Internet Protocol Address -Ba (IAS: Internet protocol address ser) ver) also forms part of the home PLMN. IAS28 is home PLMN bag It is connected to SPSN18 and GPSN26 via Kubourne 24. Ho PLMN12 has no wireless communication station, which is referred to here as wireless host 32. Enables execution of line communication. Wireless host 32 is shown here as a laptop It is shown. The laptops that form the wireless host 32 are mobile phones or P With Home PLMN12 via CMCIA wireless modem card etc. (not shown) connect. Similarly for the visited PLMN14, the base station (BS: base statio) Serving packet switch node (SPSN: servin) coupled to n) g packet switch node) 38 is included. SPSN3 8 is gateway packet support via the visited PLMN backbone 44 Gateway packet support no de) Combined with 46. GPSN46 is a passage to the visited PLMN14 It forms a (gateway) and is connected to the Internet 16. Visited PL The MN14 also has an Internet Protocol Address Server (IAS: Int). ernet protocol address server) 48 is also included ing. IAS48 SPSN via Visited PLMN Backbone 44 Combined with 38 and GPSN46. Base station 42 is absent from wireless communication station 50, which is referred to here as wireless host 52. Enables execution of line communication. Again, wireless host 52 connects to mobile phone 53 It consists of a combined laptop. In another embodiment, a wireless host Is instead coupled to a PCMCIA wireless modem card or the like. When wireless host 52 is registered at home PLMN12 and is in the location shown Roams into the area included in the visited PLMN14. In the illustrated embodiment, the radio host 52 has a permanent address, eg 192.54. It has .128.16. The operation of the embodiments of the present invention as described below. During, the wireless host 52 also has a temporary IP address, here a temporary address 194. .45.127.250 can be dynamically assigned. The figure also shows the fixed host 54. Fixed host 54 goes through a wired connection Therefore, it is connected to the Internet 16. During operation, between corresponding entities such as wireless host 52 and fixed host 54 , Data, here packet data is communicated. Temporary I to wireless host 52 Of packet data that is assigned a P address and should be passed on to wireless host 52 The destination is the temporary IP address. Temporary IP address is dynamic to wireless host Assigned to. Such address assignments are temporary, so that temporary Reassign the IP address for the next communication with another wireless host Can be done. Also, by assigning a temporary IP address to the wireless host 52, Special Radio host 52 roams into the visited network as shown Easier optimal routing of data packets to wireless hosts To. As a result of such optimal routing, delay times are reduced and data is stored. Loopt becomes faster. Figure 2 assigns a temporary address to wireless host 52 (shown in Figure 1). The transfer sequence of one embodiment of the present invention is shown. Give the wireless host a temporary IP address By doing so, the wireless host 52 can communicate data in the communication system 10. And become possible. Assigning a temporary IP address to wireless host 52 is IAS2 Performed by 8 or 48. The radio host 52 pulls in a registration request to the SPSN, for example SPSN 38. Then it self-identifies itself as a mobile station identifier (MSI: mobile station ide) ntifier). In the embodiment, the registration request is further made by the wireless host 52 temporarily I. From which IAS you request the P address, ie IAS28, IAS Indicates which of the 48 IP addresses should be assigned. Point-to-point used (PPP: point-to-poin) t) Protocol or PPP protocol network control protocol IPCP protocol included as a wireless host (NCP) is used for wireless hosts Give you the choice of negotiating the IP address to use. You can choose like this A description of the document IETF RFC1332, PPP Internet Protocol Given in the control protocol. Such a procedure is usually a point -Point connection is used. However, in wireless packet wireless systems, PPP Rotocol is used between a wireless host and a wireless transceiver device. Wireless Tran The Shiva device does not assign an IP address to the host. Request for IP address The registration request is sent to the SPSN, for example SPSN38, by copying Be done. The SPSN38 then made a request for an IP address with the appropriate IAS. Speaking of sending to IAS48. The context for wireless host 52 is in SPSN38 Is set to. G that handles address domains for temporary IP addresses The PSN46 will give you a temporary IP address, depending on the system on which it is being serviced. Informed or can retrieve temporary addresses from location registers it can. In SPSN38, the end user's data packet sent from the mobile station is I It is contained in a P-packet and sent to the appropriate GPSN46, from which it is externally networked. Sent to a fixed host in the box, for example fixed host 54, or another Sent to GPSN, eg GPSN26, and then another wireless host , For example reach host 32. When data should arrive at wireless host 52 , GPSN where end-user data packets handle temporary IP addresses After being contained in an IP packet by GPSN46, for example, through backbone 44 So, the SPSN currently servicing wireless host 52, here SPSN 38 Will be sent to. The conventional location update procedure can be carried out. And wireless host 5 2 are registered in the same PLMN, here PLMN14, ie Lomin The same temporary IP address will be assigned to wireless host 52 as long as it is logged. The transfer sequence shown in Figure 2 should be assigned a temporary IP address. It is that of a typical GPRS transfer sequence for strikes. As I mentioned before , Temporary IP address assignment is virtually dynamic and communicates with a particular wireless host The temporary IP address can be reassigned after the operation of is completed. First, and first sequence step 74 and second sequence step Radio host 52 and the radio in the same location, as indicated by page 76. Transceiver, here mobile telephone (MT) A PPP link is established with 53. PPP link is the first sequence Link Control Protocol (LCP: link co) that forms Tep 74 ntrol protocol) Configuration request, and second sequence Step 7 LCP configuration forming 6 Established in response to an acknowledgment. Of course, these -To perform the Kens step and the sequence step described later, etc. A type of protocol can be used. Once the PPP link is established, host 52 will be assigned a specific network protocol, Here we configure a link for use by the Internet Protocol (IP) .. If host 52 is not assigned a permanent IP address, or is at the root If it is desirable to assign a temporary IP address for the purpose of optimization, etc., a temporary IP address will be added. Further requests for Les are given to the mobile phone. Here, this is the third seek Represented by step 78 and formed by NCP configuration requirements. As shown in sequence step 82, mobile station 53 is located from base station 42. Generate a signal in the traditional way to request a channel allocation. Sequences As shown in Tep 84, base station 42 is, for example, a slow data controller. Le channel (SDCCH: slow data control channe) Respond with immediate allocation by l). The wireless transceiver must be registered If so, the transfer request shown in sequence step 86 is created and SPSN38 Is transmitted to. Then the traditional authentication procedure shown in block 87 is, for example, G Runs in PRS cipher mode. And the transfer response is created by SPSN38 It is given to the wireless transceiver. This is here Sequence Step 88 Indicated by. The wireless transceiver should already be incorporated into the PLMN For example, there is no need to repeat the transfer procedure. When the transfer procedure is complete, the wireless transceiver will request a routine context activation. (activate routing context request) S Send to PSN38. In the figure, the routine context activation request is sequenced. Shown by P92. Temporary I for routine context activation request Contains a request for a P-address. Such a request is sequence step 78 Transferred from the NCP configuration request that forms. SPSN38 is suitable for NEI acquisition request Send to the urgent Internet Protocol address server, here server 48. So The wireless host 52 then selects the IAS to assign a temporary IP address. To choose. Select another IAS, for example IAS28, instead of IAS48 can do. In response to the request indicated in sequence step 94, sequence step 96 The IAS creates a NEI acquisition response, as indicated by. For NEI acquisition response, Contains the temporary IP address assigned by IAS48 to host 52. sequence The NEI acquisition response that forms step 96 takes the assigned IP address. It also contains information related to GPSN that is to be handled. G like this PSN, here set the context with GPSN46, shown in block 97 After activating the GPRS context so that the SPSN38 is wireless Send a routine context activation response to Sheba. Routine context activation The response is shown in sequence step 98 in the figure. Routing context activation with temporary IP address assigned by IAS48 When the response is received by the wireless transceiver, it is shown by sequence step 102 in the figure. The assigned IP address is part of the NCP configuration acknowledgment. Sent to strike 52. When the radio transceiver receives the routing context activation response, the radio traffic A context with SPSN38 was also established in the transceiver, with a wireless transceiver. A logical link with the SPSN is established. Next, host 52 has an IP data package Can be sent to the wireless transceiver, after which the IP data packet is supported Transferred to the host. When communication is complete or when there is another request, wireless host 52 is established. Start removing the anchor layer. Typical GPRS termination context routine The gusset is shown in Figure 3. Host 52 is PPP or rather The end of operation is started by sending an end request via PPP's LCP . Host 52 terminates network layer communication due to PPP IPCP termination request When it is terminated, or when the PPP non-operation timer expires, it is assigned to the wireless host. The assigned temporary IP address is an unused IP address in IAS46 Returned to the pool. However, packets of data in the network are still wireless It may not have reached strike 52. When the temporary IP address is reused , Preventing such data from being routinely routed to another wireless host Therefore, such IP addresses will be reused for at least a selected period of time. Be I don't like it. After that, the IP address can be reused again. As shown in Figure 3, the NCP termination request is made by the radio host 52 and is wireless. Given to the transceiver. The NCP end request is shown in the figure in Sequence Step 10. Indicated by 4. NCP (IPCP) termination request goes to sequence step 104 Created on a PPP link to a wireless transceiver, as shown above. wireless The transceiver is NCP (IPCP) shown in sequence step 106 of the figure. Respond with an acknowledgment. After that, the wireless transceiver waits for a period longer than one restart time. like this The period is indicated by arrow 108 in the figure. After that, the wireless transceiver is shut down Routing context request (deactivate routing con) text request) is sent to SPSN38. Termination routine The kite request is shown in sequence step 112 in the figure. End of operation ruch A table that the temporary IP address can be released for the ing context request The indication is included. The request to release the IP address is SPSN38, NEI sent to IAS48 It is copied to the release request. Such a NEI release request is in sequence step 1 in the figure. Shown at 14. Upon receipt on IAS48, IAS SPs the NEI release response Send to SN. Such a response is shown in sequence step 116 in the figure. There is. In response, SPSN terminates context activation towards GPSN46 Start the procedure. Such a context activation termination procedure is shown in block 118 in the figure. It is indicated by. Then, as shown in sequence step 122, the operation is terminated. Routine context response is sent from SPSN38 to the wireless transceiver, Ending routine The context sequence ends. Seeing Figure 1 again, host 52 roams and becomes a temporary IP address. Packet data to wireless host 52 when the Jided PLMN14 is optimized Routine is a visited PLM instead of IAS28 at home PLMN12 N's IAS48 can be assigned to radio host 52. I explained in Figure 2. As such, a temporary IP address request is made during the registration of the wireless host. Select IAS48 to assign a temporary address to wireless host 52 Therefore, there is no need to route the registration request back to the home PLMN12. Wireless If a temporary IP address is assigned to the strike, there is no assigned address. It is given by the line host 52 to the corresponding host, for example the fixed host 54. Special Communication of packet data by a fixed service is then performed. One of the wireless hosts The data route for packet data addressed to the time IP address is 1 in the figure. Shown at 28, 132, and 134. By Visited IAS48 of Visited PLMN, Not Home PLMN A temporary address is assigned to the wireless host, so the data to wireless host 52 Routine optimization, which minimizes communication delay time and communication sloop Maximum rate. You can also reassign a temporary IP address This is a problem with the limited number of permanent addresses that can be assigned to wireless hosts. Is excluded. FIG. 4 shows the communication system 10 again having the elements corresponding to the elements shown in FIG. Shown. Such elements are used to represent the corresponding elements shown in Figure 1. It is represented by the same reference number as the one given. The connection and operation of such elements is illustrated in Figure 1. I will not repeat the previous explanation because it is the same as I did. Figure 4 assigns packet data to wireless host 52 to send it to wireless host. Shows the data route of packet data when using the given permanent address. Eternal When using the Hisashi address, both mobile outgoing data and mobile incoming data are available. Must be routineized via GPSN26 on PLMN12 .. Communicated between wireless host 52 and corresponding host, here fixed host 54 Data are shown in parts 136, 138, and 142. In the typical example of Fig. 4, the data route through which packet data must pass is shown in Fig. 1. Benefits enabled by the operation of one embodiment of the invention by comparison with the case Is shown pictorially. The data route shown in Figure 1 is via GPSN26 Since there is no need to send data between the fixed host 54 and the wireless host 52, communication is possible. The delay time is minimized and the communication throughput rate is maximized. FIG. 5 shows the part of the visited PLMN14 in more detail. Visited P LMN14 will again include SPSN38, GPSN46, and IAS48 It is shown in. As shown earlier, SPSN48 and GPSN46 are visited Forming part of PLMN backbone 44, but shown separately for illustration is there. The SPSN38 receives the temporary address request created by the wireless host 52. Receiver 152 is included. When a temporary address request is received, this request Is forwarded to transmitter 154, which sends this request to receiver 15 of IAS48. Transfer to 6. The request received by receiver 156 is given to temporary address generator 158. Be done. Temporary address generator 158 is a temporary I available from database 162 Search for P address. The retrieved temporary IP address is given to transmitter 164. Transmitter 164 is one When the IP address is forwarded to receiver 166 of SPSN38. Received temporary ad The less is given to the routine context generator 168. Routine The strike generator 168 has a routine context determiner 172 as part of it. include. Routine gucon determined by the determiner 172 of the generator 168 The display of the text is given to the GPS N46's routing context receiver 174. Is done. A signal representing such a display is given to the routing context generator 176. To. The routing context generator 176 is here the packet switch 182. Combined with the packet switch represented by, here the routing table 1 Update the routing table labeled 78. Similarly, the Routine Context Generator 168 is here a Routine Tave. Update the routing table labeled 184. The routing table is , Here combined with the packet switch represented as packet switch 186 ing. This creates a routine context within the visited PLMN Data is passed between the wireless host 52 and the corresponding host such as host 54. Ket communication is possible. FIG. 6 shows the wireless communication station 50. Here, the wireless communication station 50 is the wireless host 52. It is composed of a mobile terminal 53. Before the wireless host, as shown here Includes temporary address request generator 192 that generates temporary address requests as described It is rare. The temporary address request is given to the mobile terminal 53. Mobile terminal 53 is so I will send this request from here. When a temporary IP address is assigned to wireless host 52, its temporary IP address Is transmitted to the wireless communication station 50 and received by the mobile terminal 53. Temporary received I The P address is given to the temporary address receiver 194 of the wireless communication station. Receiver 19 The temporary IP address received by 4 is given to the packet data formatter 196. Is done. Here, the features are functionally represented by application block 198. Packet data formatter, depending on the application or service 196 works. The packet data that the wireless host 52 should generate is packet data. It is given to the transmitter 202. Packet data transmitter 202 sends packet data It is given to the mobile terminal 53, from which packet data is transmitted. As shown in the figure, the wireless communication station 50 is further added to the wireless communication station 50 via the mobile terminal 53. An additional transmitter 204 that can act directly to send the reply to the corresponding host include. As described above, the address dynamically assigned by the operation of the embodiment of the present invention. Is given to the wireless communication station, and this is the destination of the data sent to the communication station. dynamic If the address assigned to is the destination, data such as packet data will be Routine to a wireless communication station. Addresses are assigned temporarily and dynamically Therefore, it is possible to optimize the routing of data to the communication station. When communication is delayed The interval is the minimum and the throughput rate is the maximum. In addition, it is permanently attached to the wireless communication station. Due to the limited supply of permanent addresses as there is no need to give a dress Problems can be avoided. The above description shows a preferable example for embodying the present invention, and the present invention The scope should not necessarily be limited by this description. The scope of the present invention is the following claims It is specified in.
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| JP2010523053A | Cited by | Japan | Search report |
| JP2010523053A | Cited by | Japan | Examiner |
18 members in 10 offices
Priority claims9
| Document | Office | Kind | Date |
|---|---|---|---|
| 08664979 | United States of America | – | |
| 66497996 | United States of America | A | |
| 66497996 | United States of America | A | |
| 9701001 | Sweden | W | |
| 9701001 | Sweden | W | |
| 664979 | – | – | – |
| PCTSE199701001 | – | – | – |
| US19960664979 | – | – | – |
| WO1997SE01001 | – | – | – |
Members18
| Document | Office | Kind | |
|---|---|---|---|
| CA2257981A1 | Canada | A1 | |
| WO9748246A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU3199797A | Australia | A | |
| US5708655A | United States of America | A | |
| EP0904665A1 | European Patent Office (EPO) | A1 | |
| BR9709572A | Brazil | A | |
| BR9709572A | Brazil | A | |
| CN1228228A | China | A | |
| AU718114B2 | Australia | B2 | |
| NZ333221A | New Zealand | A | |
| JP2000512816AThis record | Japan | A | |
| CA2257981C | Canada | C | |
| JP3402612B2 | Japan | B2 | |
| CN1126388C | China | C | |
| EP0904665B1 | European Patent Office (EPO) | B1 | |
| DE69736596D1 | Germany | D1 | |
| DE69736596T2 | Germany | T2 | |
| BR9709572B1 | Brazil | B1 |
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Numbers
- Publication
- 2000-512816
- Publication, DOCDB
- 2000512816
- Publication, EPODOC
- JP2000512816
- Application
- 10501513
- Application, DOCDB
- 50151398
- Application, EPODOC
- JP19980501513
Titles2
- Japanese
- 【発明の名称】動的に割り当てられるアドレスを無線通信局の宛て先とするための方法と装置
- English
- PROBLEM TO BE SOLVED: To provide a dynamically assigned address as a destination of a wireless communication station.
Classification
- CPC, 3
- H04W76/12
- H04L61/5084
- H04W8/26
- IPC, 6
- H04L12 46
- H04B7 26
- H04L12 56
- H04L29 06
- H04W8 26
- H04W76 02