Communication method, base station, and user equipment
Abstract
An embodiment of the present invention discloses a communication method in which the base station performs beam scanning and alignment with a first user device in a first subframe and data in the first subframe. The step of determining the beam to be used to transmit, where the number of beams used to transmit the data is one or more, the step and the first user by using the beam. When transmitting data to the device, the base station transmits the beam information of the beam used to transmit the data, where the beam information includes at least the beam identification information and the synchronization signal. The synchronization signal is used by the second user equipment to synchronize with the base station, and the beam identification information is used to identify the beam transmitted by the base station. Used by one user device and a second user device. Embodiments of the present invention further disclose base stations and user equipment. According to the present invention, the time for scanning and alignment can be reduced to facilitate rapid access by the user performing the access.

Term
8.7 yearsto projected expiry
Projected expiry 30 May 2035, counted from filing; an application has no term until it is granted.
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38 claims: 11 independent, 27 dependent
- 1通信方法であって、 基地局によって、第1のサブフレームにおいて、第1のユーザ機器とのビーム走査および整列を実行して、前記第1のサブフレームにおいてデータを送信するために使用されるビームを決定するステップであって、データを送信するために使用されるビーム数は1以上である、ステップと、 前記ビームを使用することによって、前記第1のユーザ機器にデータを送信するとき、前記基地局によって、データを送信するために使用される前記ビームのビーム情報を送信するステップであって、前記ビーム情報は、前記ビームの識別情報および同期信号を少なくとも含む、ステップとを含み、 前記同期信号は、前記基地局と同期するために、第2のユーザ機器によって使用され、 前記ビームの前記識別情報は、前記基地局によって送信された前記ビームを識別するために、前記第1のユーザ機器および前記第2のユーザ機器によって使用される、方法。
- 2前記基地局は、第2のサブフレームにおいて、前記第1のユーザ機器および前記第2のユーザ機器とのビーム走査および整列を実行し、走査されたビームは、前記第1のサブフレームにおいてデータを送信するためにスケジュールされたビームを少なくとも含まず、前記第2のサブフレームは、前記第1のサブフレームの次のサブフレームである、請求項1に記載の方法。
- 3前記方法は、前記基地局によって送信された前記ビーム情報による復調によって、前記第1のユーザ機器および前記第2のユーザ機器によって取得されるビーム品質情報を受信するステップをさらに含み、前記第1のユーザ機器は、前記基地局にアクセスしたユーザ機器であり、前記第2のユーザ機器は、前記基地局にアクセスするユーザ機器である、請求項1または2に記載の方法。
- 4前記基地局によって、前記第2のユーザ機器によって報告されたビーム選択情報を受信するステップであって、前記ビーム選択情報は、前記基地局によって送信された前記ビーム情報および前記復調されたビーム品質情報に従って、前記第2のユーザ機器によって生成され、最適ビームのビーム識別情報および前記最適ビームのビーム品質情報を含み、前記最適ビームは、前記第2のユーザ機器が、前記ビーム品質情報に従って比較を実行した後に取得される、ステップと、 前記ビーム選択情報に従って、前記第2のユーザ機器にビームを割り当て、前記第2のユーザ機器とのデータ送信を実行するステップとをさらに含む、請求項3に記載の方法。
- 5前記第1のサブフレームにおいて、データを送信するために使用される前記ビーム数が1よりも大きく、且つ、データを送信するために使用される前記ビームが、第1のビームから第2のビームに切り替えられる場合、前記ビーム情報が送信されているとき、時間-周波数リソースで搬送される前記ビーム情報は、前記第2のビームのビーム情報に切り替えられる、請求項2乃至4のいずれか1項に記載の方法。
- 6前記ビーム情報における前記同期信号および前記識別情報は、同じサブフレーム内の異なるフィールドに配置され、または、同じサブフレーム内の同じフィールドに配置される、請求項1乃至5のいずれか1項に記載の方法。
- 7前記ビーム情報は、事前に設定された固定リソースブロックに記憶されるか、または、 前記ビーム情報の記憶位置は、前記基地局によって示される、請求項1乃至6のいずれか1項に記載の方法。
- 8前記ビーム情報が、事前に設定された固定リソースブロックに記憶されることは、 マルチキャリアシステムにおいて、事前に設定された連続または非連続の周波数リソースが、前記ビーム情報を記憶するために選択されること、または、 シングルキャリアシステムにおいて、前記ビーム情報が異なる時間セグメントに記憶されること、または、 前記ビーム情報がデータフィールドに記憶されることを含む、請求項7に記載の方法。
- 9通信方法であって、 基地局が、第1のサブフレームにおいて、ユーザ機器とのビーム走査および整列を実行するとき、前記第1のサブフレームにおいてデータを送信するために使用されるビームを決定するステップと、 前記基地局が、前記ユーザ機器にデータを送信するとき、前記基地局が、前記ビームを使用することによって、前記データを送信するときに、前記基地局によって送信されるビーム情報を受信するステップであって、前記ビーム情報は、前記ビームの識別情報および同期信号を少なくとも含む、ステップと 前記同期信号に従って、前記基地局と同期するステップと、 前記ビームの前記識別情報に従って、前記基地局によって送信された前記ビームを識別するステップとを含む方法。
- 10前記ユーザ機器によって、第2のサブフレームにおいて、前記基地局とのビーム走査および整列を実行するステップをさらに含み、走査されたビームは、前記第1のサブフレームにおいてデータを送信するためにスケジュールされたビームを少なくとも含まず、前記第2のサブフレームは、前記第1のサブフレームの次のサブフレームである、請求項9に記載の方法。
- 11前記ユーザ機器によって、ビーム選択情報を前記基地局に報告するステップであって、前記ビーム選択情報は、前記基地局によって送信された前記ビーム情報および復調されたビーム品質情報に従って、前記ユーザ機器によって生成され、最適ビームのビーム識別情報および前記最適ビームのビーム品質情報を含み、前記最適ビームは、前記ユーザ機器が、前記ビーム品質情報に従って比較を実行した後に取得される、ステップと、 前記ビーム選択情報に従って、前記基地局によって前記ユーザ機器に割り当てられたビームを使用することによって、前記基地局とのデータ送信を実行するステップとをさらに含む請求項9または10に記載の方法。
- 12前記ビーム情報における前記同期信号および前記識別情報は、同じサブフレーム内の異なるフィールドに配置され、または、同じサブフレーム内の同じフィールドに配置される、請求項9乃至11のいずれか1項に記載の方法。
- 13基地局であって、 第1のサブフレームにおいて、第1のユーザ機器とのビーム走査および整列を実行して、前記第1のサブフレームにおいてデータを送信するために使用されるビームを決定するように構成されるビーム走査ユニットであって、データを送信するために使用されるビーム数は1以上である、ビーム走査ユニットと、 前記ビームを使用することによって、前記第1のユーザ機器にデータを送信し、前記ビームのビーム情報を送信するように構成される送信ユニットであって、前記ビーム情報は、前記ビームの識別情報および同期信号を少なくとも含む、送信ユニットとを含み、 前記同期信号は、前記基地局と同期するために、第2のユーザ機器によって使用され、 前記ビームの前記識別情報は、前記基地局によって送信された前記ビームを識別するために、前記第1および第2のユーザ機器によって使用される、基地局。
- 14前記ビーム走査ユニットは、第2のサブフレームにおいて、前記第1のユーザ機器および前記第2のユーザ機器とのビーム走査および整列を実行するようにさらに構成され、走査されたビームは、前記第1のサブフレームにおいてデータを送信するためにスケジュールされたビームを少なくとも含まず、前記第2のサブフレームは、前記第1のサブフレームの次のサブフレームである、請求項13に記載の基地局。
- 15前記基地局によって送信された前記ビーム情報による復調によって、前記第1のユーザ機器および前記第2のユーザ機器によって取得されるビーム品質情報を受信するように構成される受信ユニットをさらに含み、前記第1のユーザ機器は、前記基地局にアクセスしたユーザ機器であり、前記第2のユーザ機器は、前記基地局にアクセスするユーザ機器である、請求項13または14に記載の基地局。
- 16前記受信ユニットは、前記第2のユーザ機器によって報告されたビーム選択情報を受信するようにさらに構成され、前記ビーム選択情報は、前記基地局によって送信された前記ビーム情報および前記復調されたビーム品質情報に従って、前記第2のユーザ機器によって生成され、最適ビームのビーム識別情報および前記最適ビームのビーム品質情報を含み、前記最適ビームは、前記第2のユーザ機器が、前記ビーム品質情報に従って比較を実行した後に取得され、 前記基地局は、 前記ビーム選択情報に従って、前記第2のユーザ機器にビームを割り当て、前記第2のユーザ機器とのデータ送信を実行するように構成される割り当てユニットをさらに含む、請求項15に記載の基地局。
- 17前記第1のサブフレームにおいて、データを送信するために使用される前記ビーム数が1よりも大きく、且つ、データを送信するために使用される前記ビームが、第1のビームから第2のビームに切り替えられる場合、前記ビーム情報が送信されているとき、時間-周波数リソースで搬送される前記ビーム情報は、前記第2のビームのビーム情報に切り替えられる、請求項14乃至16のいずれか1項に記載の基地局。
- 18前記ビーム情報における前記同期信号および前記識別情報は、同じサブフレーム内の異なるフィールドに配置され、または、同じサブフレーム内の同じフィールドに配置される、請求項13乃至17のいずれか1項に記載の基地局。
- 19前記ビーム情報は、事前に設定された固定リソースブロックに記憶されるか、または、 前記ビーム情報は、前記基地局によって指定される記憶位置に記憶される、請求項13乃至18のいずれか1項に記載の基地局。
- 20前記ビーム情報が、事前に設定された固定リソースブロックに記憶されることは、 マルチキャリアシステムにおいて、事前に設定された連続または非連続の周波数リソースが、前記ビーム情報を記憶するために選択されること、または、 シングルキャリアシステムにおいて、前記ビーム情報が異なる時間セグメントに記憶されること、または、 前記ビーム情報がデータフィールドに記憶されることを含む、請求項19に記載の基地局。
- 21受信機、送信機、メモリおよびプロセッサを含む基地局であって、前記受信機、前記送信機、前記メモリおよび前記プロセッサはバスに接続され、前記メモリは、一群のプログラムコードを記憶し、前記プロセッサは、 第1のサブフレームにおいて、第1のユーザ機器とのビーム走査および整列を実行して、前記第1のサブフレームにおいてデータを送信するために使用されるビームを決定する操作であって、データを送信するために使用されるビーム数は1以上である、操作と、 前記送信機が前記第1のユーザ機器にデータを送信するときに、前記送信機に、データを送信するために使用される前記ビームのビーム情報を送信するように命令する操作であって、前記ビーム情報は、前記ビームの識別情報および同期信号を少なくとも含む、操作とを実行するために、前記メモリ内に記憶される前記プログラムコードを呼び出すように構成され、 前記同期信号は、前記基地局と同期するために、第2のユーザ機器によって使用され、 前記ビームの前記識別情報は、前記基地局によって送信された前記ビームを識別するために、前記第1のユーザ機器および前記第2のユーザ機器によって使用される、基地局。
- 22前記プロセッサは、 第2のサブフレームにおいて、前記第1のユーザ機器および前記第2のユーザ機器とのビーム走査および整列を実行するようにさらに構成され、走査されたビームは、前記第1のサブフレームにおいてデータを送信するためにスケジュールされたビームを少なくとも含まず、前記第2のサブフレームは、前記第1のサブフレームの次のサブフレームである、請求項21に記載の基地局。
- 23前記受信機は、前記基地局によって送信された前記ビーム情報による復調によって、前記第1のユーザ機器および前記第2のユーザ機器によって取得されるビーム品質情報を受信するように構成され、前記第1のユーザ機器は、前記基地局にアクセスしたユーザ機器であり、前記第2のユーザ機器は、前記基地局にアクセスするユーザ機器である、請求項21または22に記載の基地局。
- 24前記受信機は、前記第2のユーザ機器によって報告されたビーム選択情報を受信するように構成され、前記ビーム選択情報は、前記基地局によって送信された前記ビーム情報および前記復調されたビーム品質情報に従って、前記第2のユーザ機器によって生成され、最適ビームのビーム識別情報および前記最適ビームのビーム品質情報を含み、前記最適ビームは、前記第2のユーザ機器が、前記ビーム品質情報に従って比較を実行した後に取得され、 前記プロセッサは、前記ビーム選択情報に従って、前記第2のユーザ機器にビームを割り当て、前記受信機および前記送信機に、前記第2のユーザ機器とのデータ送信を実行するように命令するようにさらに構成される、請求項21乃至23のいずれか1項に記載の基地局。
- 25前記第1のサブフレームにおいて、データを送信するために使用される前記ビーム数が1よりも大きく、且つ、データを送信するために使用される前記ビームが、第1のビームから第2のビームに切り替えられる場合、前記ビーム情報が送信されているとき、時間-周波数リソースで搬送される前記ビーム情報は、前記第2のビームのビーム情報に切り替えられる、請求項22乃至24のいずれか1項に記載の基地局。
- 26前記ビーム情報における前記同期信号および前記識別情報は、同じサブフレーム内の異なるフィールドに配置され、または、同じサブフレーム内の同じフィールドに配置される、請求項21乃至25のいずれか1項に記載の基地局。
- 27前記ビーム情報は、事前に設定された固定リソースブロックに記憶されるか、または、 前記プロセッサは、前記ビーム情報の記憶位置を示すようにさらに構成される、請求項21乃至26のいずれか1項に記載の基地局。
- 28前記ビーム情報が、事前に設定された固定リソースブロックに記憶されることは、 マルチキャリアシステムにおいて、事前に設定された連続または非連続の周波数リソースが、前記ビーム情報を記憶するために選択されること、または、 シングルキャリアシステムにおいて、前記ビーム情報が異なる時間セグメントに記憶されること、または、 前記ビーム情報がデータフィールドに記憶されることを含む、請求項27に記載の基地局。
- 29コンピュータ記憶媒体であって、前記コンピュータ記憶媒体はプログラムを記憶し、前記プログラムが動作するとき、請求項1乃至8のいずれか1項に記載の前記ステップが含まれる、コンピュータ記憶媒体。
- 30ユーザ機器であって、 第1のサブフレームにおいて、基地局とのビーム走査および整列を実行して、前記第1のサブフレームにおいてデータを送信するために使用されるビームを決定するように構成されるビーム走査ユニットと、 前記ビームを使用することによって、前記基地局によって送信されたデータを受信するように構成され、前記基地局が、前記ビームを使用することによって、前記データを送信するときに、前記基地局によって送信されるビーム情報を受信するようにさらに構成される受信ユニットであって、前記ビーム情報は、前記ビームの識別情報および同期信号を少なくとも含む、受信ユニットと、 前記同期信号に従って、前記基地局と同期するように構成される同期ユニットと、 前記ビームの前記識別情報に従って、前記基地局によって送信された前記ビームを識別するように構成される識別ユニットとを含むユーザ機器。
- 31前記ビーム走査ユニットは、 第2のサブフレームにおいて、前記基地局とのビーム走査および整列を実行するようにさらに構成され、走査されたビームは、前記第1のサブフレームにおいてデータを送信するためにスケジュールされたビームを少なくとも含まず、前記第2のサブフレームは、前記第1のサブフレームの次のサブフレームである、請求項30に記載のユーザ機器。
- 32ビーム選択情報を前記基地局に報告するように構成される報告ユニットをさらに含み、前記ビーム選択情報は、前記基地局によって送信された前記ビーム情報および復調されたビーム品質情報に従って、前記ユーザ機器によって生成され、最適ビームのビーム識別情報および前記最適ビームのビーム品質情報を含み、前記最適ビームは、前記ユーザ機器が、前記ビーム品質情報に従って比較を実行した後に取得され、 前記受信ユニットは、前記ビーム選択情報に従って、前記基地局によって前記ユーザ機器に割り当てられたビームを使用することによって、前記基地局とのデータ送信を実行するようにさらに構成される、請求項30または31に記載のユーザ機器。
- 33前記ビーム情報における前記同期信号および前記識別情報は、同じサブフレーム内の異なるフィールドに配置され、または、同じサブフレーム内の同じフィールドに配置される、請求項30乃至32のいずれか1項に記載のユーザ機器。
- 34受信機、送信機、メモリおよびプロセッサを含むユーザ機器であって、前記受信機、前記送信機、前記メモリおよび前記プロセッサはバスに接続され、 前記メモリは、一群のプログラムコードを記憶し、前記プロセッサは、 第1のサブフレームにおいて、基地局とのビーム走査および整列を実行して、前記第1のサブフレームにおいてデータを送信するために使用されるビームを決定する操作と、 前記基地局が、前記ユーザ機器にデータを送信するとき、前記基地局が、前記ビームを使用することによって、前記データを送信するときに、前記基地局によって送信されるビーム情報を受信する操作であって、前記ビーム情報は、前記ビームの識別情報および同期信号を少なくとも含む、操作と 前記同期信号に従って、前記基地局と同期する操作と、 前記ビームの前記識別情報に従って、前記基地局によって送信された前記ビームを識別する操作とを実行するために、前記メモリ内に記憶される前記プログラムコードを呼び出すように構成される、ユーザ機器。
- 35前記プロセッサは、 第2のサブフレームにおいて、前記基地局とのビーム走査および整列を実行するようにさらに構成され、走査されたビームは、前記第1のサブフレームにおいてデータを送信するためにスケジュールされたビームを少なくとも含まず、前記第2のサブフレームは、前記第1のサブフレームの次のサブフレームである、請求項34に記載のユーザ機器。
- 36前記送信機は、ビーム選択情報を前記基地局に報告するように構成され、前記ビーム選択情報は、前記基地局によって送信された前記ビーム情報および復調されたビーム品質情報に従って、前記プロセッサによって生成され、最適ビームのビーム識別情報および前記最適ビームのビーム品質情報を含み、前記最適ビームは、前記プロセッサが、前記ビーム品質情報に従って比較を実行した後に取得され、 前記受信機および前記送信機は、前記ビーム選択情報に従って、前記基地局によって前記ユーザ機器に割り当てられたビームを使用することによって、前記基地局とのデータ送信を実行するようにさらに構成される、請求項34または35に記載のユーザ機器。
- 37前記ビーム情報における前記同期信号および前記識別情報は、同じサブフレーム内の異なるフィールドに配置され、または、同じサブフレーム内の同じフィールドに配置される、請求項34乃至36のいずれか1項に記載のユーザ機器。
- 38コンピュータ記憶媒体であって、前記コンピュータ記憶媒体はプログラムを記憶し、前記プログラムが動作するとき、請求項9乃至12のいずれか1項に記載の前記ステップが含まれる、コンピュータ記憶媒体。
Independent claims38
241 paragraphs, as filed
The present invention relates to the field of communication technology, and more particularly to communication methods, base stations and user equipment.
Due to the increase in the number of mobile terminals and the amount of data required by users, the bandwidth of the frequency band currently below 6G cannot meet the demand for the increasing amount of communication data. Therefore, there is a tendency to use high frequency bands (30G to 300G or higher frequency bands) with abundant bandwidth resources such as backhaul frequency bands and access frequency bands. However, large path loss is one of the obvious features of the high frequency band when compared to the frequency band below 6G. To ensure a particular transmission distance, the high frequency beam needs to be relatively narrow to achieve a relatively large gain. However, because the coverage area of the narrow beam system is limited, in order to obtain the maximum antenna gain, the base station (Base Station, abbreviated as BS) end and the user equipment (abbreviated as UE) should be between BS and UE. In order to carry out normal communication, it is necessary to perform narrow beam scanning and alignment prior to data transmission.
The scanning and alignment steps of the prior art require that fixed time slots used for periodic scanning be configured in each subframe. In addition, during each scan, traversal must be performed in all directions so that the optimal combination of transmit and receive beams can be selected for subsequent data transmission. .. For example, the transmitting end has four different beams (Z1-Z4), each beam carrying the corresponding beam information of the beam. Scanning of the four beams is completed early in each subframe, and each beam occupies a time slot, eg 10 μs. Therefore, the first 40 μs of each subframe is used for beam scanning and alignment, and the remaining 960 μs is used for data transmission. The receiving end also has four beams (RX1-RX4), and the scanned beam changes at each subframe, i.e. 1 ms. In this case, a total of 4 to complete the scan of all 16 beam combinations of receive and transmit beams. ms is required. The receiving end demodulates the beam information of the beam at the transmitting end and then feeds back information about the optimal combination of transmitting beam and receiving beam to the transmitting end during the data transmission stage (eg, the transmitting beam is Z3 and The received beam is R2). The transmitting end performs transmission at the data transmission stage by using beam Z3, and the receiving end performs reception by using beam R2. The entire process is time consuming because the fixed time slots used for the scans must be configured in each subframe and traverse must be performed in all directions during each scan. , A large amount of resources are occupied.
<p num="0004"> The technical problem to be solved in the embodiment of the present invention is that the narrow beam communication requires a long scanning time and occupies a large amount of resources. To provide.</p><p num="0005"> According to the first aspect, an embodiment of the present invention provides a communication method, wherein the method is: A step in which the base station performs beam scanning and alignment with the first user equipment in the first subframe to determine the beam used to transmit data in the first subframe. , Where the number of beams used to transmit the data is greater than or equal to 1, step and, By using a beam, when transmitting data to a first user device, the base station is a step in transmitting the beam information of the beam used to transmit the data, where the beam information is. Includes steps, including at least beam identification and synchronization signals, where The synchronization signal is used by a second user device to synchronize with the base station, The beam identification information is used by the first user equipment and the second user equipment to identify the beam transmitted by the base station.</p><p num="0006"> With reference to the embodiment of the first aspect, in the first possible embodiment of the first aspect, the base station is beamed with the first user equipment and the second user equipment in the second subframe. Scanning and alignment is performed, where the scanned beam does not include at least the beam scheduled to transmit data in the first subframe, and the second subframe is of the first subframe. The next subframe.</p><p num="0007"> With reference to the first possible embodiment of the first aspect or the first aspect, in the second possible embodiment of the first aspect, the method is by demodulation with beam information transmitted by the base station. Further including the step of receiving the beam quality information acquired by the first user equipment and the second user equipment, where the first user equipment is the user equipment accessing the base station and the second user. The device is a user device that accesses the base station.</p><p num="0008"> With reference to any one of the first and second possible embodiments of the first embodiment, in the third possible embodiment of the first aspect, the method is: The step of receiving the beam selection information reported by the second user equipment by the base station, wherein the beam selection information is in accordance with the beam information transmitted by the base station and the demodulated beam quality information. Generated by two user equipment and includes beam identification information of the optimum beam and beam quality information of the optimum beam, where the optimum beam is acquired after the second user equipment performs a comparison according to the beam quality information. , Steps and It further includes the step of allocating a beam to the second user device according to the beam selection information and performing data transmission with the second user device.</p><p num="0009"> With reference to any one of the first aspect, or one of the first to third possible embodiments of the first aspect, the fourth possible embodiment of the first aspect is in the first subframe. , Beam information is transmitted when the number of beams used to transmit data is greater than 1 and the beam used to transmit data is switched from the first beam to the second beam. When so, the beam information carried by the time-frequency resource is switched to the beam information of the second beam.</p><p num="0010"> With reference to any one of the first to fourth possible embodiments of the first aspect, the fifth possible embodiment of the first aspect includes a synchronization signal in the beam information and The identification information is placed in different fields within the same subframe, or in the same field within the same subframe.</p><p num="0011"> With reference to any one of the first to fifth possible embodiments of the first aspect, in the sixth possible embodiment of the first aspect, the beam information is pre-populated. Stored in the set fixed resource block or The storage position of the beam information is indicated by the base station.</p><p num="0012"> With reference to any one of the first to sixth possible embodiments of the first aspect, the seventh possible embodiment of the first aspect It is possible that the beam information is stored in a preset fixed resource block. In a multicarrier system, preset continuous or discontinuous frequency resources are selected to store beam information, or In a single carrier system, beam information is stored in different time segments, or Includes beam information being stored in a data field.</p><p num="0013"> According to a second aspect, embodiments of the present invention provide a communication method, wherein the method is: When the base station performs beam scanning and alignment with the user equipment in the first subframe, the steps to determine the beam used to transmit data in the first subframe, and When the base station transmits data to the user equipment, the base station uses a beam to receive the beam information transmitted by the base station when transmitting data, wherein the base station receives the beam information transmitted by the base station. The beam information includes at least the beam identification information and the synchronization signal, the step and the Steps to synchronize with the base station according to the synchronization signal, It includes a step of identifying the beam transmitted by the base station according to the beam identification information.</p><p num="0014"> Referring to the embodiment of the second aspect, in the first possible embodiment of the second aspect, the step of performing beam scanning and alignment with the base station by the user equipment in the second subframe, wherein So, the scanned beam does not include at least the beam scheduled to transmit data in the first subframe, and the second subframe is the next subframe of the first subframe.</p><p num="0015"> With reference to the first possible embodiment of the second aspect or the second aspect, in the second possible embodiment of the second aspect, the method is: The step of reporting the beam selection information to the base station by the user equipment, where the beam selection information is optimally generated by the user equipment according to the beam information transmitted by the base station and the demodulated beam quality information. The beam identification information of the beam and the beam quality information of the optimum beam are included, where the optimum beam is acquired after the user equipment performs the comparison according to the beam quality information. It further includes the step of performing data transmission with the base station by using the beam assigned to the user equipment by the base station according to the beam selection information.</p><p num="0016"> With reference to any one of the first and second possible embodiments of the second aspect, or the second embodiment, the third possible embodiment of the second aspect includes the synchronization signal in the beam information and The identification information is placed in different fields within the same subframe, or in the same field within the same subframe.</p><p num="0017"> According to a third aspect, an embodiment of the present invention provides a base station, which is a base station. A beam scanning unit configured to perform beam scanning and alignment with the first user equipment in the first subframe to determine the beam used to transmit data in the first subframe. And here, the number of beams used to transmit data is one or more, the beam scanning unit and A transmission unit configured to transmit data to a first user device by using a beam and transmit beam information of the beam, where the beam information is a beam identification information and a synchronization signal. Including at least the transmitting unit and, where The synchronization signal is used by a second user device to synchronize with the base station, The beam identification information is used by the first user equipment and the second user equipment to identify the beam transmitted by the base station.</p><p num="0018"> Referring to the embodiment of the third aspect, in the first possible embodiment of the third aspect, the beam scanning unit is in the second subframe with the first user equipment and the second user equipment. Further configured to perform beam scanning and alignment, where the scanned beam does not include at least the beam scheduled to transmit data in the first subframe, the second subframe It is the next subframe of the first subframe.</p><p num="0019"> With reference to the first possible embodiment of the third aspect or the third aspect, in the second possible embodiment of the third aspect, the base station It further includes a receiving unit configured to receive the beam quality information acquired by the first user equipment and the second user equipment by demodulation with the beam information transmitted by the base station, wherein the first user equipment. The user device is a user device that accesses the base station, and the second user device is a user device that accesses the base station.</p><p num="0020"> With reference to any one of the first and second possible embodiments of the third aspect, or the third aspect, in the third possible embodiment of the third aspect, the receiving unit is the second. It is further configured to receive the beam selection information reported by the user equipment of the second user equipment, where the beam selection information is according to the beam information transmitted by the base station and the demodulated beam quality information. It is generated and contains beam identification information of the optimum beam and beam quality information of the optimum beam, where the optimum beam is acquired after the second user equipment performs a comparison according to the beam quality information. The base station It further includes an allocation unit configured to allocate a beam to the second user equipment according to the beam selection information and perform data transmission with the second user equipment.</p><p num="0021"> With reference to any one of the third aspect, or one of the first to third possible embodiments of the third aspect, the fourth possible embodiment of the third aspect is in the first subframe. , Beam information is transmitted when the number of beams used to transmit data is greater than 1 and the beam used to transmit data is switched from the first beam to the second beam. When so, the beam information carried by the time-frequency resource is switched to the beam information of the second beam.</p><p num="0022"> With reference to any one of the third aspect, or one of the first to fourth possible embodiments of the third aspect, the fifth possible embodiment of the third aspect includes a synchronization signal in the beam information and The identification information is placed in different fields within the same subframe, or in the same field within the same subframe.</p><p num="0023"> With reference to any one of the third aspect, or one of the first to fifth possible embodiments of the third aspect, in the sixth possible embodiment of the third aspect, the beam information is pre-populated. Stored in the set fixed resource block or The beam information is stored in a storage position designated by the base station.</p><p num="0024"> With reference to any one of the third aspect, or one of the first to sixth possible embodiments of the third aspect, in the seventh possible embodiment of the third aspect, the beam information is pre-populated. What is stored in the set fixed resource block is In a multicarrier system, preset continuous or discontinuous frequency resources are selected to store beam information, or In a single carrier system, beam information is stored in different time segments, or Includes beam information being stored in a data field.</p><p num="0025"> According to a fourth aspect, an embodiment of the present invention provides a base station, which is a base station. Includes receiver, transmitter, memory and processor, where receiver, transmitter, memory and processor are connected to the bus, memory stores a set of program code, and processor. An operation that performs beam scanning and alignment with the first user equipment in the first subframe to determine the beam used to transmit data in the first subframe, wherein here. The number of beams used to transmit data is greater than or equal to 1, operation and When the transmitter transmits data to the first user device, it is an operation that instructs the transmitter to transmit the beam information of the beam used to transmit the data, and here, the beam information. Is configured to call program code stored in memory to perform operations, including at least beam identification and synchronization signals, where The synchronization signal is used by a second user device to synchronize with the base station, The beam identification information is used by the first user equipment and the second user equipment to identify the beam transmitted by the base station.</p><p num="0026"> With reference to the embodiment of the fourth aspect, in the first possible embodiment of the fourth aspect, the processor In the second subframe, it is further configured to perform beam scanning and alignment with the first user equipment and the second user equipment, where the scanned beam captures data in the first subframe. The second subframe is the next subframe of the first subframe, not including at least the beam scheduled to be transmitted.</p><p num="0027"> With reference to the first possible embodiment of the fourth aspect or the fourth aspect, in the second possible embodiment of the fourth aspect, the receiver is demodulated by the beam information transmitted by the base station. , The first user equipment is configured to receive the beam quality information acquired by the first user equipment and the second user equipment, where the first user equipment is the user equipment that has accessed the base station and the second. The user device is a user device that accesses the base station.</p><p num="0028"> With reference to any one of the first and second possible embodiments of the fourth aspect, or the fourth aspect, in the third possible embodiment of the fourth aspect, the receiver is the second. The beam selection information is configured to receive the beam selection information reported by the user equipment of the second user equipment, where the beam selection information is generated by the second user equipment according to the beam information transmitted by the base station and the demodulated beam quality information. It contains the beam identification information of the optimum beam and the beam quality information of the optimum beam, where the optimum beam is acquired after the second user equipment performs the comparison according to the beam quality information. The processor is further configured to allocate a beam to the second user device according to the beam selection information and instruct the receiver and transmitter to perform data transmission with the second user device.</p><p num="0029"> With reference to any one of the first to third possible embodiments of the fourth aspect, or the fourth embodiment, the fourth possible embodiment of the fourth aspect is in the first subframe. , Beam information is transmitted when the number of beams used to transmit data is greater than 1 and the beam used to transmit data is switched from the first beam to the second beam. When so, the beam information carried by the time-frequency resource is switched to the beam information of the second beam.</p><p num="0030"> With reference to any one of the fourth aspect, or one of the first to fourth possible embodiments of the fourth aspect, the fifth possible embodiment of the fourth aspect includes a synchronization signal in the beam information and The identification information is placed in different fields within the same subframe, or in the same field within the same subframe.</p><p num="0031"> With reference to any one of the first to fifth possible embodiments of the fourth aspect, or the fourth aspect, in the sixth possible embodiment of the fourth aspect, the beam information is preliminarily provided. Stored in the set fixed resource block or The processor is further configured to indicate the storage location of the beam information.</p><p num="0032"> With reference to any one of the fourth possible embodiments, or the first to sixth possible embodiments of the fourth aspect, in the seventh possible embodiment of the fourth aspect, the beam information is preliminarily provided. What is stored in the set fixed resource block is In a multicarrier system, preset continuous or discontinuous frequency resources are selected to store beam information, or In a single carrier system, beam information is stored in different time segments, or Includes beam information being stored in a data field.</p><p num="0033"> According to a fifth aspect, embodiments of the present invention further provide a computer storage medium, where the computer storage medium stores the program and when the program operates, the first and second embodiments of the present invention. The steps described in any embodiment of the embodiment are included.</p><p num="0034"> According to a sixth aspect, an embodiment of the present invention provides a user device, which is a user device. Beam scan configured to determine the beam used to transmit data in the first subframe when the base station performs beam scan and alignment with the user equipment in the first subframe. With the unit A receiving unit configured to receive beam information transmitted by a base station when the base station transmits data to a user device by using a beam. Here, the beam information includes at least the beam identification information and the synchronization signal, and the receiving unit, A synchronization unit configured to synchronize with the base station according to the synchronization signal, Includes an identification unit configured to identify the beam transmitted by the base station according to the beam identification information.</p><p num="0035"> With reference to the embodiment of the sixth aspect, in the first possible embodiment of the sixth aspect, the beam scanning unit is The beam scanning unit is further configured to perform beam scanning and alignment with the base station in the second subframe, where the scanned beam is to transmit data in the first subframe. The second subframe is the next subframe of the first subframe, at least not including the scheduled beam.</p><p num="0036"> With reference to the first possible embodiment of the sixth aspect or the sixth aspect, in the second possible embodiment of the sixth aspect, the user equipment is It further includes a reporting unit configured to report the beam selection information to the base station, where the beam selection information is generated by the user equipment according to the beam information transmitted by the base station and the demodulated beam quality information. Includes optimum beam identification information and optimum beam quality information, where the optimum beam is acquired after the user equipment has performed a comparison according to the beam quality information. The receiving unit is further configured to perform data transmission with the base station by using the beam assigned to the user equipment by the base station according to the beam selection information.</p><p num="0037"> With reference to any one of the first and second possible embodiments of the sixth aspect, or the first and second possible embodiments of the sixth embodiment, the third possible embodiment of the sixth aspect includes the synchronization signal in the beam information and The identification information is placed in different fields within the same subframe, or in the same field within the same subframe.</p><p num="0038"> According to a seventh aspect, an embodiment of the present invention provides a user device, the user device including a receiver, a transmitter, a memory and a processor, where the receiver, the transmitter, the memory and the processor are on the bus. Connected, The memory stores a set of program code, and the processor, When the base station performs beam scanning and alignment with the user equipment in the first subframe, the operation of determining the beam used to transmit data in the first subframe, This is an operation in which the base station receives the beam information transmitted by the base station when transmitting data by using the beam when the base station transmits data to the user equipment. The beam information includes at least the beam identification information and the synchronization signal, and the operation and Operation to synchronize with the base station according to the synchronization signal, It is configured to call program code stored in memory to perform operations such as identifying the beam transmitted by the base station according to the beam identification information.</p><p num="0039"> With reference to the embodiment of the seventh aspect, in the first possible embodiment of the seventh aspect, the processor further The processor is In the second subframe, it is further configured to perform beam scanning and alignment with the base station, where the scanned beam is a beam scheduled to transmit data in the first subframe. At least not included, the second subframe is the next subframe of the first subframe.</p><p num="0040"> With reference to the first possible embodiment of the seventh aspect or the seventh aspect, in the second possible embodiment of the seventh aspect, the transmitter will report the beam selection information to the base station. The beam selection information is configured, where the beam selection information is generated by the processor according to the beam information transmitted by the base station and the demodulated beam quality information, and includes the beam identification information of the optimum beam and the beam quality information of the optimum beam. In, the optimum beam is obtained after the processor performs the comparison according to the beam quality information. The receiver and transmitter are further configured to perform data transmission with the base station by using the beam assigned to the user equipment by the base station according to the beam selection information.</p><p num="0041"> With reference to any one of the first and second possible embodiments of the seventh aspect, or the seventh aspect, the third possible embodiment of the seventh aspect includes a synchronization signal in the beam information and The identification information is placed in different fields within the same subframe, or in the same field within the same subframe.</p><p num="0042"> According to an eighth aspect, an embodiment of the present invention provides a computer storage medium, wherein the computer storage medium stores the program and when the program operates, the third and fourth embodiments of the present invention. The steps described in any embodiment of the embodiment are included.</p><p num="0043"> The following beneficial effects are achieved by implementing the embodiments of the present invention:</p><p num="0044"> The beam information carried when the base station transmits data to the first UE is also transmitted to the second UE, so that the base station and the first UE scan and align in the next subframe. When performing, some or all of the scheduled beams may no longer be repeatedly scanned. This helps reduce the scan time and the time-frequency resources occupied during the scan. In addition, the second UE can receive beam information when the base station and the first UE perform data transmission, so that the second UE knows the accessible beam according to the beam information. It can, thereby facilitating quick access to the second UE.</p>
In order to more clearly explain the technical solutions in the embodiments of the present invention or in the prior art, the accompanying drawings required to illustrate the embodiments will be briefly described below. Obviously, the accompanying drawings in the following description show only some embodiments of the present invention, and one of ordinary skill in the art can further derive other drawings from these attached drawings without creative effort.
<figref num="1">FIG. 1 is a schematic flowchart of a first embodiment of the communication method according to the present invention.</figref><figref num="2">FIG. 2 is a schematic flowchart of a second embodiment of the communication method according to the present invention.</figref><figref num="3">FIG. 3 is a schematic flowchart of a third embodiment of the communication method according to the present invention.</figref><figref num="4">FIG. 4 is a schematic flowchart of a fourth embodiment of the communication method according to the present invention.</figref><figref num="5">FIG. 5 is a schematic configuration diagram of frames used for scanning and alignment and data transmission.</figref><figref num="6">FIG. 6 is a schematic configuration diagram of a frame used for scanning and alignment and data transmission according to an embodiment of the present invention.</figref><figref num="7">FIG. 7 is a schematic configuration diagram of a frame used in the LTE architecture for carrying beam information according to an embodiment of the present invention.</figref><figref num="8">FIG. 8 is a schematic diagram of time-frequency resource setting in the first embodiment of storing beam information according to the present invention.</figref><figref num="9">FIG. 9 is a schematic diagram of time-frequency resource setting in the second embodiment for storing beam information according to the present invention.</figref><figref num="10">FIG. 10 is a schematic diagram of time-frequency resource setting in the third embodiment for storing beam information according to the present invention.</figref><figref num="11">FIG. 11 is a schematic diagram of time-frequency resource setting in the fourth embodiment of storing beam information according to the present invention.</figref><figref num="12">FIG. 12 is a schematic diagram of time-frequency resource setting in the fifth embodiment of storing beam information according to the present invention.</figref><figref num="13A">FIG. 13A is a schematic flowchart of a first embodiment of new user access in the communication method according to the present invention.</figref><figref num="13B">FIG. 13B is a schematic flowchart of a first embodiment of new user access in the communication method according to the present invention.</figref><figref num="14A">FIG. 14A is a schematic flowchart of a second embodiment of new user access in the communication method according to the present invention.</figref><figref num="14B">FIG. 14B is a schematic flowchart of a second embodiment of new user access in the communication method according to the present invention.</figref><figref num="15">FIG. 15 is a schematic configuration diagram of a first embodiment of the base station according to the present invention.</figref><figref num="16">FIG. 16 is a schematic configuration diagram of a second embodiment of the base station according to the present invention.</figref><figref num="17">FIG. 17 is a schematic configuration diagram of a third embodiment of the base station according to the present invention.</figref><figref num="18">FIG. 18 is a schematic configuration diagram of a first embodiment of the user device according to the present invention.</figref><figref num="19">FIG. 19 is a schematic configuration diagram of a second embodiment of the user device according to the present invention.</figref><figref num="20">FIG. 20 is a schematic configuration diagram of a third embodiment of the user device according to the present invention.</figref>
Hereinafter, the technical solutions according to the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings according to the embodiments of the present invention. Obviously, the embodiments described are merely part, but not all, of the embodiments of the present invention. All other embodiments obtained by one of ordinary skill in the art based on the embodiments of the invention without creative effort should be included in the scope of protection of the invention.
Embodiments of the present invention may be applied to high frequency wireless cellular transmission systems or to 802.11ad wireless gigabit (WiGig for short) systems. That is, the communication method, base station and user equipment according to the embodiment of the present invention may be applied to a scenario in which the base station and the user equipment perform beam communication. In addition, the user equipment is a user equipment that can be covered by the transmission beam of the base station. The user equipment may be an activated user, i.e. a user who has accessed the transmission beam of the base station, or has not accessed any of the deactivated users, i.e., the transmission beam of the base station. It may be a user. According to the method of the embodiment of the invention, the base station can improve the efficiency of scanning and aligning with the activated user, i.e., the user who accessed the beam, the deactivated user. That is, the access time to the system by a user who does not access the beam can be reduced. In the following, a detailed description will be provided with reference to FIGS. 1 to 20.
With reference to FIG. 1, FIG. 1 is a schematic flowchart of a first embodiment of the communication method according to the present invention. In this embodiment, the method includes the following steps.
S101. The base station performs beam scanning and alignment with the first user equipment in the first subframe to determine the beam used to transmit data in the first subframe.
The number of beams used to transmit data is one or more.
In the first subframe, the number of beams used to transmit data is greater than 1, and the beam used to transmit data is switched from the first beam to the second beam. If the beam information is being transmitted, the beam information carried by the time-frequency resource needs to be switched to the beam information of the second beam. Similarly, if the beam used to transmit the data is switched from the second beam to the third beam, then when the beam information is being transmitted, the beam information carried by the time-frequency resource will be It is switched to the beam information of the third beam.
S102. When transmitting data to the first user equipment by using a beam, the base station transmits the beam information of the beam used to transmit the data.
The beam information includes at least the beam identification information and the synchronization signal.
The synchronization signal is used by a second user device to synchronize with the base station.
The beam identification information is used by the first user equipment and the second user equipment to identify the beam transmitted by the base station.
Optionally, the beam identification information may be a simple beam number or another code used to identify the beam. This is not limited to the present embodiment of the present invention.
The first user device is a user device that has accessed the base station, and the first user device can already execute data transmission with the base station. The second user device is a user device that accesses the base station. After receiving one or more beam information, the second user device may determine which beam is the optimum access beam and feed back the information about the optimum beam to the base station. The base station may then schedule the beam to the second user equipment according to the information about the optimum beam, so that the second user equipment can also perform data communication with the base station.
The beam information carried when the base station transmits data to the first UE is also transmitted to the second UE, so that the base station and the first UE scan and align in the next subframe. When performing, some or all of the scheduled beams may no longer be repeatedly scanned. This helps reduce the scan time and the time-frequency resources occupied during the scan. In addition, the second UE can receive beam information when the base station and the first UE perform data transmission, so that the second UE knows the accessible beam according to the beam information. It can, thereby facilitating quick access to the second UE.
With reference to FIG. 2, FIG. 2 is a schematic flowchart of a second embodiment of the communication method according to the present invention. In this embodiment, the method includes the following steps.
S201. The base station performs beam scanning and alignment with the first user equipment in the first subframe to determine the beam used to transmit data in the first subframe.
The number of beams used to transmit data is one or more.
In the first subframe, the number of beams used to transmit data is greater than 1, and the beam used to transmit data is switched from the first beam to the second beam. If the beam information is being transmitted, the beam information carried by the time-frequency resource needs to be switched to the beam information of the second beam. Similarly, if the beam used to transmit the data is switched from the second beam to the third beam, then when the beam information is being transmitted, the beam information carried by the time-frequency resource will be It is switched to the beam information of the third beam.
Optionally, the first subframe may be the subframe in which the base station first scans and aligns with the first UE, or is a subframe in any time domain during the scanning and alignment stages. It's okay.
Beam scanning and alignment may be performed periodically. Scanning and alignment targets may include UEs that have accessed the beam and UEs that have not accessed the beam. A beam scan for a UE that has accessed the beam is to determine if the beam needs to be switched, and a beam scan for a UE that is not accessing the beam is to allow access.
Optionally, if the beam used to transmit the data is not scheduled before the first subframe period, the base station shall be used to transmit the data in the first subframe. It is necessary to scan all the beams that can be generated. After synchronizing with the base station, the UE may identify the corresponding beam number, i.e., the beam identification information by demodulating the beam information, and optionally obtain the beam quality information of the beam by demodulation. The beam quality information is used to indicate the channel state quality corresponding to the beam. The beam quality information here can be any one or signal-to-noise ratio (SNR), signal-to-noise ratio (SINR) or signal energy. A plurality may be included, but the present invention is not limited to these.
S202. When transmitting data to the first user equipment by using the beam, the base station transmits the beam information of the beam used to transmit the data.
The beam information includes at least the beam identification information and the synchronization signal.
The synchronization signal is used by a second user device to synchronize with the base station.
The beam identification information is used by the first user equipment and the second user equipment to identify the beam transmitted by the base station.
Optionally, the beam identification information may be a simple beam number or another code used to identify the beam. This is not limited to the present embodiment of the present invention.
S203. In the second subframe, beam scanning and alignment with the first user equipment and the second user equipment is performed.
The first user device is a user device that has accessed the base station, and the first user device can already execute data transmission with the base station. The second user device is a user device that accesses the base station. After receiving one or more beam information, the second user device may determine which beam is the optimum access beam and feed back the information about the optimum beam to the base station. The base station may then schedule the beam to the second user equipment according to the information about the optimum beam, so that the second user equipment can also perform data communication with the base station.
The scanned beam does not include at least the beam scheduled to transmit data in the first subframe. The second subframe is the next subframe of the first subframe.
That is, in the scanning phase of the second subframe, all or part of the beams scheduled in the transmitting phase of the first subframe are no longer repeatedly scanned. This can reduce the scanning time.
Similarly, if the beam used to transmit the data is scheduled before the first subframe period, the base station will transmit the data in the first subframe and in the last subframe. You may scan at least one unscheduled beam for this purpose. However, in the next subframe of the second subframe, i.e., in the third subframe, the base station in the first and second subframes, in the first and second subframes, the first subframe and the second subframe. It is necessary to scan at least one unscheduled beam to transmit data in the frame.
For example, with reference to FIGS. 5 and 6, FIGS. 5 and 6 show a schematic configuration diagram of frames used for scanning and alignment, and data transmission, respectively, and scanning and alignment according to embodiments of the present invention. , And a schematic configuration diagram of a frame used for data transmission. As shown in FIG. 5, high frequency narrow beam communication generally includes a scanning and alignment step and a data transmission step. The scanning and alignment steps are used for narrow beam scanning and alignment, where each beam carries the corresponding beam information. In the data transmission stage, communication is performed by using the beam acquired after scanning and alignment. If scanning needs to be performed in a total of 8 directions, beam switching must be performed 8 times in each subframe. For each beam, if there are 16 Orthogonal Frequency Division Multiplexing (OFDM) symbols used to transmit beam information for scanning, then the 16 OFDM symbols are each in this process. Must be fixedly assigned to subframes.
However, in the present embodiment of the present invention, referring to FIG. 6, in the first subframe period, traversal is performed in all eight directions, 16 OFDM symbols are assigned for scanning, number 1 and up. The third beam is transmitted during the data transmission stage of the first subframe. Similar to the beam transmitted in the scanning step, the beam information is inserted into all the beams numbered 1 to 3. Therefore, not all of the beams numbered 1 to 8 need to be scanned during the scanning step of the second subframe, only the beams numbered 4 to 8 need to be scanned, and only 10 OFDM symbols. , Need to be allocated for beam scanning, resulting in reduced overhead. Similarly, the beams numbered 1 to 5 are transmitted during the data transmission stage of the second subframe. Therefore, only the beams numbered 6 to 8 need to be scanned during the scanning step of the third subframe, and only 6 OFDM symbols need to be assigned. Indeed, some beams scheduled to transmit data in the first subframe may also be scanned in the second subframe. As long as not all of the beam is scanned, the scanning time can be reduced as compared to the prior art.
In conclusion, as each beam is transmitted, information about the beam is inserted into the time-frequency resource block, so that it is not necessary to traverse all beams during each subframe period. This reduces the time spent scanning and aligning, reduces the number of beam transitions, ensures that all beams can be transmitted periodically, thereby facilitating subsequent access by new users. To do. The scan period is dynamically adjusted with reference to past beam transmission states, and there is no need to configure a fixed scan period. This can significantly reduce the time slot length occupied by the scan period in the entire frame structure, thereby reducing resource overhead.
Optionally, the beam used to transmit the data may be a single beam or two or more beams.
If the number of beams used to transmit the data is greater than 1, then when the beam information is being transmitted, the beam information carried by the time-frequency resource is when performing communication with the base station. To ensure that the UE can accurately receive the beam information of the currently used beam, it may be switched to the beam information of the currently used beam according to the currently used beam.
Frames in the LTE architecture are used as an example. A schematic configuration diagram of the frame used in the LTE architecture for transporting beam information in this embodiment of the present invention may be shown in FIG. One frame contains several subframes, each subframe contains several time slots, and beam information may be carried in the time slots.
For synchronization information and beam identification information included in the beam information, The synchronization signal and identification information in the beam information may be arranged in different fields of the same subframe, or may be arranged in the same field of the same subframe. Specifically, when the synchronization signal and identification information are placed in different fields, i.e., when the two are set independently for the first UE to be acquired step by step, specifically, the first user device. May first synchronize with the transmission end of the base station by using a sync signal, and then demodulate to obtain beam identification information. The synchronization signals of all beams may be the same or different, and the identification information of all beams is different from each other.
Alternatively, the synchronization signal and identification information in the beam information may be placed in the same field in the same subframe. That is, the synchronization information and the beam identification information may be set together for the first user device to be acquired at the same time. For example, one sequence may be used for the detection of both synchronization signals and beam identification information. The first UE acquires the synchronization signal and the beam identification information by one demodulation.
Specifically, when the beam information is stored, the beam information may be stored in a preset fixed resource block, or The storage position of the beam information is indicated by the base station.
With reference to FIGS. 8-12, respectively, FIGS. 8-12 correspond to schematic diagrams of time-frequency resource settings in the first to fourth embodiments that store beam information. 8 to 11 show scenarios in which beam information is stored in a preset fixed resource block, which may include the following cases:
As shown in FIGS. 8 and 9, in a multicarrier system, preset continuous or discontinuous frequency resources are selected to store the beam information. As shown in FIG. 8, the horizontal coordinates represent time, the vertical coordinates represent frequency, the plaids represent beam identification information, and the unidirectional diagonal fringes represent synchronization signals. In the process of transmitting data from beam 0 to beam 3, both the synchronization signal and the beam identification information are stored in a contiguous frequency band. As shown in FIG. 9, the horizontal coordinates represent time, the vertical coordinates represent frequency, the plaids represent beam identification information, and the unidirectional diagonal fringes represent synchronization signals. In the process of transmitting data from beam 0 to beam 3, both the synchronization signal and the beam identification information are stored in discontinuous frequency bands.
Alternatively, as shown in FIG. 10, in a single carrier system, beam information is stored in different time segments. The unidirectional diagonal stripes represent the synchronization signal, the grid stripes represent the beam identification information, and the blank portion is the data portion. The beam information of beam 0 and the beam information of beam 1 are sequentially stored in different time segments. The first UE first receives a synchronization signal for synchronization and then demodulates to acquire beam identification information.
Alternatively, as shown in FIG. 11, the beam information is stored in the data field. The first field in the data field identifies the beam identification information, the second field shows the packet length, and the last field shows the modulation scheme. The position of the beam identification information in the data field may be fixed or may be notified to the first UE by the base station.
Alternatively, as shown in FIG. 12, the storage location of the beam information is indicated by the base station. The checkered stripes represent the beam identification information, and the diagonal stripes are synchronous signals. The storage positions of the beam information corresponding to each of the beams 0 to 3 may be randomly indicated. The base station determines the storage location and then notifies the first UE.
Specifically, the base station may notify in advance the time-frequency resource position or data field position for storing the beam information corresponding to each beam. The beam information is dynamically stored at a specific position during the beam switching process of the scanning and alignment stage and the data transmission stage to facilitate reception and demodulation by the first UE. The method of notifying the first UE by the base station, referred to herein, may be to notify the first UE by using a low frequency communication channel, or another existing one. It may be a method. This is not limited to the present embodiment of the present invention.
The above-mentioned storage method is applicable to the case where the synchronization signal and the beam identification information are set independently, and is also applicable to the case where both are set.
S204. Receive the beam selection information reported by the second user equipment.
After scanning and alignment is complete, the UE device uses the information detected to help the base station complete resource scheduling (which may include beam resource scheduling and idle time domain resource scheduling) and access for new users. To report. The reporting method may be a random access process in Long Term Evolution (LTE for short) technology, or may be conventional low frequency network access. This is not limited to the present embodiment of the present invention.
The beam selection information is generated by a second user device according to the beam information transmitted by the base station and the demodulated beam quality information, and includes the beam identification information of the optimum beam and the beam quality information of the optimum beam, where the beam quality information is included. The optimum beam is acquired after the second user equipment performs the comparison according to the beam quality information.
S205. According to the beam selection information, a beam is assigned to the second user device, and data transmission with the second user device is executed.
If the second UE wants to connect to the system at this point after the first UE and the base station have completed data transmission, the second UE will generate beam selection information according to the beam information transmitted by the base station. You can do it. The beam selection information is generated by the second user equipment according to the beam information transmitted by the base station and the demodulated beam quality information, and includes the beam identification information of the optimum beam and the beam quality information of the optimum beam, where the beam quality information is included. The optimum beam is acquired after the second user equipment performs the comparison according to the beam quality information.
The base station then allocates a beam to the second user device according to the beam selection information and executes data transmission with the second user device.
Specific application scenarios may be divided into two types. To show the beam quality comparison process, a third UE has been introduced and is described with reference to FIGS. 13A and 13B, and FIGS. 14A and 14B.
With reference to FIGS. 13A and 13B, FIGS. 13A and 13B are schematic flowcharts of a first embodiment of new user access in the communication method according to the invention. In this embodiment, for scheduling for UEs placed in the coverage of two beams, UE1 accesses beam1, UE2 accesses beam2 (UE1 and UE2 are activated users), and UE3 Assume that you are a deactivated user and UE3 is placed in both beam 1 and beam 2 coverage. It is hoped that the optimal UE3 access process will be carried out without the addition of beams.
As shown in Figures 13A and 13B, the method involves the following steps:
1. The base station uses beam 1 to transmit data to UE 1 along with beam information.
2. UE1 obtains the corresponding beam number, namely beam identification information, beam quality information and data transmitted by the base station, by demodulation by using beam information.
3. The base station also uses beam 1 to transmit beam information to UE3.
4. UE3 acquires beam identification information and beam quality information of beam 1 by demodulation by using beam information.
5. The base station uses beam 2 to transmit data to UE2 along with beam information.
6. UE2 obtains the corresponding beam number, namely beam identification information, beam quality information and data transmitted by the base station, by demodulation by using beam information.
7. The base station also uses beam 2 to transmit beam information to UE3.
8. UE3 acquires beam identification information and beam quality information of beam 2 by demodulation by using beam information.
9. UE3 compares the two beam quality information to determine the beam number for access, for example, beam 1 is selected for access here.
10. UE1 reports the demodulated beam number and beam quality information of the optimum beam.
11. UE2 reports the demodulated beam number and beam quality information of the optimum beam.
12. UE3 reports the demodulated beam number and beam quality information of the optimum beam.
13. The base station performs resource scheduling according to the information reported by the three UEs.
14. The base station completes scheduling and data transmission with UE1.
15. The base station completes scheduling and data transmission with UE2.
16. The base station completes scheduling and data transmission with UE3 by using beam 1.
With reference to FIGS. 14A and 14B, FIGS. 14A and 14B are schematic flowcharts of a second embodiment of new user access in the communication method according to the invention. In this embodiment, for scheduling for UEs placed in the coverage of two beams, UE1 accesses beam1, UE2 accesses beam2 (UE1 and UE2 are activated users), and UE3 Assume that you are a deactivated user and UE3 is located in the coverage area of beam 2, but not in the coverage area of beam 1. It is hoped that the optimal UE3 access process will be carried out without the addition of beams.
As shown in FIGS. 14A and 14B, the method comprises the following steps:
1. The base station uses beam 1 to transmit data to UE 1 along with beam information.
2. UE1 obtains the corresponding beam number, namely beam identification information, beam quality information and data transmitted by the base station, by demodulation by using beam information.
3. The base station also uses beam 1 to transmit beam information to UE3.
4. Since UE3 is not within the coverage area of beam 1, UE3 cannot obtain beam number and beam quality information of beam 1 by demodulation by using beam information.
5. The base station uses beam 2 to transmit data to UE2 along with beam information.
6. UE2 obtains the corresponding beam number, namely beam identification information, beam quality information and data transmitted by the base station, by demodulation by using beam information.
7. The base station also uses beam 2 to transmit beam information to UE3.
8. UE3 acquires beam identification information and beam quality information of beam 2 by demodulation by using beam information.
9. UE3 selects beam 2 for access.
10. UE1 reports the demodulated beam number and beam quality information of the optimum beam.
11. UE2 is optimal Bee Report beam number and a beam quality information is demodulated in the arm.
12. UE3 reports the demodulated beam number and beam quality information of the optimum beam.
13. The base station performs resource scheduling according to the information reported by the three UEs.
14. The base station completes scheduling and data transmission with UE1.
15. The base station completes scheduling and data transmission with UE2.
16. The base station completes scheduling and data transmission with UE3 by using beam 1.
According to the schemes described in FIGS. 13A and 13B, and 14A and 14B, when data is transmitted to UE1 and UE2, a message is sent to carry the beam information to UE3, which is not accessing the beam. As a result, rapid access of the deactivated user can be performed. Resource overhead is reduced and access efficiency for new users is improved because no additional beam information needs to be transmitted.
With reference to FIG. 3, FIG. 3 is a schematic flowchart of a third embodiment of the communication method according to the present invention. In this embodiment, the method includes the following steps.
S301. When the base station performs beam scanning and alignment with the user equipment in the first subframe, it determines the beam used to transmit data in the first subframe.
The first subframe may be a subframe in which the base station first scans and aligns with the first UE, or may be a subframe in any time domain during the scanning and alignment stages.
S302. When the base station transmits data to the user equipment, the base station receives the beam information transmitted by the base station when transmitting data by using the beam.
The beam information includes at least the beam identification information and the synchronization signal.
S303. Synchronize with the base station according to the synchronization signal.
S304. Identify the beam transmitted by the base station according to the beam identification information.
Optionally, the sync signal and identification information in the beam information is placed in different fields within the same subframe, or in the same field within the same subframe.
That is, the sync signal and identification information in the beam information may be set independently for the user equipment to be acquired step by step, or The synchronization signal and the identification information in the beam information may be set together for the user equipment to be acquired simultaneously.
Optionally, the beam identification information may be a single beam number or another code used to identify the beam. This is not limited to the present embodiment of the present invention.
With reference to FIG. 4, FIG. 4 is a schematic flowchart of a fourth embodiment of the communication method according to the present invention. In this embodiment, the method includes the following steps.
S401. When the base station performs beam scanning and alignment with the user equipment in the first subframe, it determines the beam used to transmit data in the first subframe.
The first subframe may be a subframe in which the base station first scans and aligns with the first UE, or may be a subframe in any time domain during the scanning and alignment stages.
S402. When the base station transmits data to the user equipment, the base station receives the beam information transmitted by the base station when transmitting data by using the beam.
The beam information includes at least the beam identification information and the synchronization signal.
S403. Synchronize with the base station according to the synchronization signal.
S404. Identify the beam transmitted by the base station according to the beam identification information.
S405. Perform beam scanning and alignment with the base station in the second subframe.
The scanned beam does not include at least the beam scheduled to transmit data in the first subframe. The second subframe is the next subframe of the first subframe.
S406. Report beam selection information to the base station.
The beam selection information is generated by the user equipment according to the beam information transmitted by the base station and the demodulated beam quality information, and includes the beam identification information of the optimum beam and the beam quality information of the optimum beam, where the optimum beam is , Acquired after the user equipment has performed the comparison according to the beam quality information.
S407. Performs data transmission with the base station by using the beam assigned to the user equipment by the base station according to the beam selection information.
Referring to FIG. 15, FIG. 15 is a schematic configuration diagram of a first embodiment of a base station according to the present invention. In this embodiment, the base station is A beam scanning unit configured to perform beam scanning and alignment with the first user equipment in the first subframe to determine the beam used to transmit data in the first subframe. It s 100, and here, With the beam scanning unit 100, the number of beams used to transmit data is 1 or more. A transmission unit 200 configured to transmit data to a first user device by using a beam and transmit beam information of the beam, where the beam information is the identification information and synchronization of the beam. Includes a transmitting unit 200 and includes at least a signal.
The synchronization signal is used by a second user device to synchronize with the base station.
The beam identification information is used by the first user equipment and the second user equipment to identify the beam transmitted by the base station.
Optionally, the sync signal and identification information in the beam information is placed in different fields within the same subframe, or in the same field within the same subframe.
That is, the synchronization signal and identification information in the beam information are set independently for the first user device or the second user device to be acquired step by step, or The synchronization signal and the identification information in the beam information are set together for the first user device or the second user device for simultaneous acquisition.
Optionally, the beam information is stored in a preset fixed resource block or The beam information is stored in a storage position designated by the base station.
Optionally, the beam information is stored in a preset fixed resource block, specifically. In a multicarrier system, preset continuous or discontinuous frequency resources are selected to store beam information, or In a single carrier system, beam information is stored in different time segments, or Includes beam information being stored in a data field.
With reference to FIG. 16, FIG. 16 is a schematic configuration diagram of a second embodiment of the base station according to the present invention. In this embodiment, the base station includes a beam scanning unit 100 and a transmitting unit 200.
The beam scanning unit 100 performs beam scanning and alignment with the first user equipment in the first subframe to determine the beam used to transmit data in the first subframe. It is composed.
The number of beams used to transmit data is one or more.
In the first subframe, the number of beams used to transmit data is greater than 1, and the beam used to transmit data is switched from the first beam to the second beam. If the beam information is being transmitted, the beam information carried by the time-frequency resource needs to be switched to the beam information of the second beam. Similarly, if the beam used to transmit the data is switched from the second beam to the third beam, then when the beam information is being transmitted, the beam information carried by the time-frequency resource will be It is switched to the beam information of the third beam.
Optionally, the first subframe may be the subframe in which the base station first scans and aligns with the first UE, or is a subframe in any time domain during the scanning and alignment stages. It's okay.
Beam scanning and alignment may be performed periodically. Scanning and alignment targets may include UEs that have accessed the beam and UEs that have not accessed the beam. A beam scan for a UE that has accessed the beam is to determine if the beam needs to be switched, and a beam scan for a UE that is not accessing the beam is to allow access.
Optionally, if the beam used to transmit the data is not scheduled before the first subframe period, the base station shall be used to transmit the data in the first subframe. It is necessary to scan all the beams that can be generated. After synchronizing with the base station, the UE may identify the corresponding beam number, i.e., the beam identification information by demodulating the beam information, and optionally obtain the beam quality information of the beam by demodulation. Beam quality information is used to indicate the channel state quality corresponding to the beam. The beam quality information here may include, but is not limited to, SNR, SINR or any one or more of the signal energies.
The transmission unit 200 is configured to transmit data to the first user device and transmit beam information of the beam by using the beam.
The beam information includes at least the beam identification information and the synchronization signal.
The synchronization signal is used by a second user device to synchronize with the base station.
The beam identification information is used by the first user equipment and the second user equipment to identify the beam transmitted by the base station.
Optionally, the beam identification information may be a simple beam number or another code used to identify the beam. This is not limited to the present embodiment of the present invention.
Optionally, the base station further includes a receiving unit 300 and an allocation unit 400.
The beam scanning unit 100 In the second subframe, it is further configured to perform beam scanning and alignment with the first user equipment and the second user equipment, where the scanned beam captures data in the first subframe. The second subframe is the next subframe of the first subframe, not including at least the beam scheduled to be transmitted.
The first user device is a user device that has accessed the base station, and the first user device can already execute data transmission with the base station. The second user device is a user device that accesses the base station. After receiving one or more beam information, the second user device may determine which beam is the optimum access beam and feed back the information about the optimum beam to the base station. The base station may then schedule the beam to the second user equipment according to the information about the optimum beam, so that the second user equipment can also perform data communication with the base station.
In the scanning phase of the second subframe, all or part of the beams scheduled in the transmitting phase of the first subframe are no longer repeatedly scanned. This can reduce the scanning time.
Similarly, if the beam is scheduled to transmit data prior to the first subframe period, the base station schedules to transmit data in the last subframe in the first subframe. At least one beam that has not been scanned may be scanned. In the next subframe of the second subframe, i.e., in the third subframe, the base station is in the first subframe and in the second subframe, in the first subframe and in the second subframe. You need to scan at least one unscheduled beam to send the data.
For example, with reference to FIGS. 5 and 6, FIGS. 5 and 6 show a schematic configuration diagram of frames used for scanning and alignment, and data transmission, respectively, and scanning and alignment according to embodiments of the present invention. , And a schematic configuration diagram of a frame used for data transmission. As shown in FIG. 5, high frequency narrow beam communication generally includes a scanning and alignment step and a data transmission step. The scanning and alignment steps are used for narrow beam scanning and alignment, where each beam carries the corresponding beam information. In the data transmission stage, communication is performed by using the beam acquired after scanning and alignment. If scanning needs to be performed in a total of 8 directions, beam switching must be performed 8 times in each subframe. For each beam, if there are 16 Orthogonal Frequency Division Multiplexing (OFDM) symbols used to transmit beam information for scanning, then the 16 OFDM symbols are each in this process. Must be fixedly assigned to subframes.
However, in the present embodiment of the present invention, referring to FIG. 6, in the first subframe period, traversal is performed in all eight directions, 16 OFDM symbols are assigned for scanning, number 1 and up. The third beam is transmitted during the data transmission stage of the first subframe. Similar to the beam transmitted in the scanning step, the beam information is inserted into all the beams numbered 1 to 3. Therefore, not all of the beams numbered 1 to 8 need to be scanned during the scanning step of the second subframe, only the beams numbered 4 to 8 need to be scanned, and only 10 OFDM symbols. , Need to be allocated for beam scanning, resulting in reduced overhead. Similarly, the beams numbered 1 to 5 are transmitted during the data transmission stage of the second subframe. Therefore, only the beams numbered 6 to 8 need to be scanned during the scanning step of the third subframe, and only 6 OFDM symbols need to be assigned. Indeed, some beams scheduled to transmit data in the first subframe may also be scanned in the second subframe. As long as not all of the beam is scanned, the scanning time can be reduced as compared to the prior art.
In conclusion, as each beam is transmitted, information about the beam is inserted into the time-frequency resource block, so that it is not necessary to traverse all beams during each subframe period. This reduces the time spent scanning and aligning, reduces the number of beam transitions, ensures that all beams can be transmitted periodically, thereby facilitating subsequent access by new users. To do. The scan period is dynamically adjusted with reference to past beam transmission states, and there is no need to configure a fixed scan period. This can significantly reduce the time slot length occupied by the scan period in the entire frame structure, thereby reducing resource overhead.
The beam used to transmit the data may be a single beam or two or more beams.
If the number of beams used to transmit the data is greater than 1, then when the beam information is being transmitted, the beam information carried by the time-frequency resource is when performing communication with the base station. To ensure that the UE can accurately receive the beam information of the currently used beam, it may be switched to the beam information of the currently used beam according to the currently used beam.
Frames in the LTE architecture are used as an example. A schematic configuration diagram of the frame used in the LTE architecture for transporting beam information in this embodiment of the present invention may be shown in FIG. One frame contains several subframes, each subframe contains several time slots, and beam information may be carried in the time slots.
Optionally, the sync signal and identification information in the beam information may be located in different fields of the same subframe, or may be located in the same field of the same subframe.
That is, the synchronization signal and identification information in the beam information are set independently (placed in different fields) for the first user device or the second user device to be acquired step by step, or The synchronization signal and the identification information in the beam information are set together (placed in the same field) for the first user device or the second user device for simultaneous acquisition.
For example, the synchronization signal and the identification information may be set independently for the first UE to be acquired step by step. Specifically, the first user equipment may first synchronize with the transmission end of the base station by using a synchronization signal, and then demodulate to acquire beam identification information. The synchronization signals of all beams may be the same or different, and the identification information of all beams is different from each other.
Alternatively, the synchronization information and the beam identification information may be set together for the first user device to be acquired simultaneously. For example, one sequence may be used for the detection of both synchronization signals and beam identification information. The first UE acquires the synchronization signal and the beam identification information by one demodulation.
Optionally, the beam information is stored in a preset fixed resource block or The beam information is stored in a storage position designated by the base station.
Optionally, the beam information is stored in a preset fixed resource block, specifically. In a multicarrier system, preset continuous or discontinuous frequency resources are selected to store beam information, or In a single carrier system, beam information is stored in different time segments, or Includes beam information being stored in a data field.
With reference to FIGS. 8-12, respectively, FIGS. 8-12 correspond to schematic diagrams of time-frequency resource settings in the first to fourth embodiments that store beam information. 8 to 11 show scenarios in which beam information is stored in a preset fixed resource block, which may include the following cases:
As shown in FIGS. 8 and 9, in a multicarrier system, preset continuous or discontinuous frequency resources are selected to store the beam information. As shown in FIG. 8, the horizontal coordinates represent time, the vertical coordinates represent frequency, the plaids represent beam identification information, and the unidirectional diagonal fringes represent synchronization signals. In the process of transmitting data from beam 0 to beam 3, both the synchronization signal and the beam identification information are stored in a contiguous frequency band. As shown in FIG. 9, the horizontal coordinates represent time, the vertical coordinates represent frequency, the plaids represent beam identification information, and the unidirectional diagonal fringes represent synchronization signals. In the process of transmitting data from beam 0 to beam 3, both the synchronization signal and the beam identification information are stored in discontinuous frequency bands.
Alternatively, as shown in FIG. 10, in a single carrier system, beam information is stored in different time segments. The unidirectional diagonal stripes represent the synchronization signal, the grid stripes represent the beam identification information, and the blank portion is the data portion. The beam information of beam 0 and the beam information of beam 1 are sequentially stored in different time segments. The first UE first receives a synchronization signal for synchronization and then demodulates to acquire beam identification information.
Alternatively, as shown in FIG. 11, the beam information is stored in the data field. The first field in the data field identifies the beam identification information, the second field shows the packet length, and the last field shows the modulation scheme. The position of the beam identification information in the data field may be fixed or may be notified to the first UE by the base station.
Alternatively, as shown in FIG. 12, the storage location of the beam information is indicated by the base station. The checkered stripes represent the beam identification information, and the diagonal stripes are synchronous signals. The storage positions of the beam information corresponding to each of the beams 0 to 3 may be randomly indicated. The base station determines the storage location and then notifies the first UE.
Specifically, the base station may notify in advance the time-frequency resource position or data field position for storing the beam information corresponding to each beam. The beam information is dynamically stored at a specific position during the beam switching process of the scanning and alignment stage and the data transmission stage to facilitate reception and demodulation by the first UE. The method of notifying the first UE by the base station, referred to herein, may be to notify the first UE by using a low frequency communication channel, or another existing one. It may be a method. This is not limited to the present embodiment of the present invention.
The above-mentioned storage method is applicable to the case where the synchronization signal and the beam identification information are set independently, and is also applicable to the case where both are set.
The receiving unit 300 is configured to receive the beam quality information acquired by the first user equipment and the second user equipment by demodulation with the beam information transmitted by the base station.
Optionally, the receiving unit 300 is further configured to receive the beam selection information reported by the second user equipment, where the beam selection information is the beam information transmitted by the base station and the demodulated beam. Produced by the second user equipment according to the quality information, it contains the beam identification information of the optimum beam and the beam quality information of the optimum beam, where the optimum beam is the second user equipment performing the comparison according to the beam quality information. Will be acquired after
The allocation unit 400 is configured to allocate a beam to the second user device according to the beam selection information and execute data transmission with the second user device.
If the second UE wants to connect to the system at this point after the first UE and the base station have completed data transmission, the second UE will generate beam selection information according to the beam information transmitted by the base station. You can do it. The beam selection information is generated by the second user equipment according to the beam information transmitted by the base station and the demodulated beam quality information, and includes the beam identification information of the optimum beam and the beam quality information of the optimum beam, where the beam quality information is included. The optimum beam is acquired after the second user equipment performs the comparison according to the beam quality information.
The base station then allocates a beam to the second user device according to the beam selection information and executes data transmission with the second user device.
Specific application scenarios may be divided into two types. To show the beam quality comparison process, a third UE has been introduced and is described with reference to FIGS. 13A and 13B, and FIGS. 14A and 14B.
With reference to FIGS. 13A and 13B, FIGS. 13A and 13B are schematic flowcharts of a first embodiment of new user access in the communication method according to the invention. In this embodiment, for scheduling for UEs placed in the coverage of two beams, UE1 accesses beam1, UE2 accesses beam2 (UE1 and UE2 are activated users), and UE3 Assume that you are a deactivated user and UE3 is placed in both beam 1 and beam 2 coverage. It is hoped that the optimal UE3 access process will be carried out without the addition of beams.
As shown in Figures 13A and 13B, the method involves the following steps:
1. The base station uses beam 1 to transmit data to UE 1 along with beam information.
2. UE1 obtains the corresponding beam number, namely beam identification information, beam quality information and data transmitted by the base station, by demodulation by using beam information.
3. The base station also uses beam 1 to transmit beam information to UE3.
4. UE3 acquires beam identification information and beam quality information of beam 1 by demodulation by using beam information.
5. The base station uses beam 2 to transmit data to UE2 along with beam information.
6. UE2 obtains the corresponding beam number, namely beam identification information, beam quality information and data transmitted by the base station, by demodulation by using beam information.
7. The base station also uses beam 2 to transmit beam information to UE3.
8. UE3 acquires beam identification information and beam quality information of beam 2 by demodulation by using beam information.
9. UE3 compares the two beam quality information to determine the beam number for access, for example, beam 1 is selected for access here.
10. UE1 reports the demodulated beam number and beam quality information of the optimum beam.
11. UE2 reports the demodulated beam number and beam quality information of the optimum beam.
12. UE3 reports the demodulated beam number and beam quality information of the optimum beam.
13. The base station performs resource scheduling according to the information reported by the three UEs.
14. The base station completes scheduling and data transmission with UE1.
15. The base station completes scheduling and data transmission with UE2.
16. The base station completes scheduling and data transmission with UE3 by using beam 1.
With reference to FIGS. 14A and 14B, FIGS. 14A and 14B are schematic flowcharts of a second embodiment of new user access in the communication method according to the invention. In this embodiment, for scheduling for UEs placed in the coverage of two beams, UE1 accesses beam1, UE2 accesses beam2 (UE1 and UE2 are activated users), and UE3 Assume that you are a deactivated user and UE3 is located in the coverage area of beam 2, but not in the coverage area of beam 1. It is hoped that the optimal UE3 access process will be carried out without the addition of beams.
As shown in FIGS. 14A and 14B, the method comprises the following steps:
1. The base station uses beam 1 to transmit data to UE 1 along with beam information.
2. UE1 obtains the corresponding beam number, namely beam identification information, beam quality information and data transmitted by the base station, by demodulation by using beam information.
3. The base station also uses beam 1 to transmit beam information to UE3.
4. Since UE3 is not within the coverage area of beam 1, UE3 cannot obtain beam number and beam quality information of beam 1 by demodulation by using beam information.
5. The base station uses beam 2 to transmit data to UE2 along with beam information.
6. UE2 obtains the corresponding beam number, namely beam identification information, beam quality information and data transmitted by the base station, by demodulation by using beam information.
7. The base station also uses beam 2 to transmit beam information to UE3.
8. UE3 acquires beam identification information and beam quality information of beam 2 by demodulation by using beam information.
9. UE3 selects beam 2 for access.
10. UE1 reports the demodulated beam number and beam quality information of the optimum beam.
11. UE2 reports the demodulated beam number and beam quality information of the optimum beam.
12. UE3 reports the demodulated beam number and beam quality information of the optimum beam.
13. The base station performs resource scheduling according to the information reported by the three UEs.
14. The base station completes scheduling and data transmission with UE1.
15. The base station completes scheduling and data transmission with UE2.
16. The base station completes scheduling and data transmission with UE3 by using beam 1.
According to the schemes described in FIGS. 13A and 13B, and 14A and 14B, when data is transmitted to UE1 and UE2, a message is sent to carry the beam information to UE3, which is not accessing the beam. As a result, rapid access of the deactivated user can be performed. Resource overhead is reduced and access efficiency for new users is improved because no additional beam information needs to be transmitted.
It should be noted that the beam scanning unit 100, the transmitting unit 200, the receiving unit 300 and the assigning unit 400 may exist independently or may be arranged in an integrated manner. In the present embodiment, the beam scanning unit 100, the transmitting unit 200, the receiving unit 300, or the allocation unit 400 may be arranged in hardware form independently of the processor of the base station, and may be arranged as a microprocessor. , Or may be embedded in the base station's processor in hardware form, or may be stored in the base station's memory in software form, so that the base station processor is beam scanning unit 100, transmit unit 200, Invoke and execute the operation corresponding to the receiving unit 300 and the allocation unit 400.
For example, in the second embodiment of the base station in the present invention (the embodiment shown in FIG. 16), the beam scanning unit 100 may be a processor of the base station. The functions of the transmit unit 200, the receive unit 300 and the allocation unit 400 may be built into the processor, may be configured independently of the processor, or may be stored in memory in software form, the processor being a unit. Call and execute the function of. This is not limited to the present embodiment of the present invention. The processor may be a central processing unit (CPU), a microprocessor, a single-chip microcomputer, or the like.
With reference to FIG. 17, FIG. 17 is a schematic configuration diagram of a third embodiment of the base station according to the present invention. In this embodiment, the base station is It includes a receiver 110, a transmitter 120, a memory 130 and a processor 140, where the receiver 110, the transmitter 120, the memory 130 and the processor 140 are connected to a bus, where the memory 130 stores a set of program codes. Processor 140 An operation that performs beam scanning and alignment with the first user equipment in the first subframe to determine the beam used to transmit data in the first subframe, wherein here. The number of beams used to transmit data is greater than or equal to 1, operation and When the transmitter 120 transmits data to the first user device, it is an operation of instructing the transmitter 120 to transmit the beam information of the beam used to transmit the data. The beam information is configured to call program code stored in memory 130 to perform operations, including at least beam identification information and synchronization signals. The synchronization signal is used by a second user device to synchronize with the base station, The beam identification information is used by the first user equipment and the second user equipment to identify the beam transmitted by the base station.
Optionally, the processor 140 is further configured to perform beam scanning and alignment with the first user equipment and the second user equipment in the second subframe, where the scanned beam is the second. The second subframe is the next subframe of the first subframe, not including at least the beam scheduled to transmit data in one subframe.
Optionally, receiver 110 is configured to receive beam quality information acquired by the first and second user equipment by demodulation with the beam information transmitted by the base station, where the first The first user device is a user device that accesses the base station, and the second user device is a user device that accesses the base station.
Optionally, the receiver 110 is configured to receive the beam selection information reported by the second user equipment, where the beam selection information is the beam information transmitted by the base station and the demodulated beam quality. According to the information, it is generated by the second user equipment and contains the beam identification information of the optimum beam and the beam quality information of the optimum beam, where the optimum beam is compared by the second user equipment according to the beam quality information. Will be acquired later.
Processor 140 is further configured to allocate a beam to a second user device according to the beam selection information and instruct receiver 110 and transmitter 120 to perform data transmission with the second user device. ..
Optionally, in the first subframe, the number of beams used to transmit the data is greater than 1, and the beams used to transmit the data are from the first beam to the second beam. When switched to, the beam information carried by the time-frequency resource is switched to the beam information of the second beam when the beam information is being transmitted.
Optionally, the sync signal and identification information in the beam information is placed in different fields within the same subframe, or in the same field within the same subframe.
That is, the synchronization signal and identification information in the beam information are set independently for the first user device or the second user device to be acquired step by step, or The synchronization signal and the identification information in the beam information are set together for the first user device or the second user device for simultaneous acquisition.
Optionally, the beam information is stored in a preset fixed resource block or Processor 140 is further configured to indicate the storage location of beam information.
It is possible that the beam information is stored in a preset fixed resource block. In a multicarrier system, preset continuous or discontinuous frequency resources are selected to store beam information, or In a single carrier system, beam information is stored in different time segments, or Includes beam information being stored in a data field.
Embodiments of the present invention further provide a computer storage medium, which stores a program. When the program operates, it includes some or all of the steps recorded in either the first or second embodiment of the communication method of the present invention.
Referring to FIG. 18, FIG. 18 is a schematic configuration diagram of a first embodiment of a user device according to the present invention. In this embodiment, the user device is Beam scan configured to determine the beam used to transmit data in the first subframe when the base station performs beam scan and alignment with the user equipment in the first subframe. Unit 500, here With the beam scanning unit 500, where the number of beams used to transmit data is 1 or more. Receiving unit 600 configured to receive beam information transmitted by a base station when the base station transmits data to a user device by using a beam. And here, the beam information includes at least the beam identification information and the synchronization signal, with the receiving unit 600. A synchronization unit 700 configured to synchronize with the base station according to the synchronization signal, It includes an identification unit 800 configured to identify the beam transmitted by the base station according to the beam identification information.
Optionally, the sync signal and identification information in the beam information is placed in different fields within the same subframe, or in the same field within the same subframe.
That is, the sync signal and identification information in the beam information is set independently for the processor to be acquired step by step, or The synchronization signal and the identification information in the beam information are set together for the processor to be acquired simultaneously.
It should be noted that the user equipment in the present embodiment of the present invention may be a user equipment that has accessed the base station or a user equipment that has not accessed the base station. When the user equipment is accessing the base station, the user equipment performs data transmission with the base station according to the currently assigned beam, reducing the number of beams scanned each time during beam scanning and alignment. The time for beam scanning and alignment may be increased, and beam quality information may be further reported, so that the base station performs more optimized beam scheduling. If the user equipment does not access the base station, the user equipment receives and demodulates the beam information transmitted by the base station when the base station transmits data to other user equipment that has accessed the base station. Beam quality information may be obtained by. After the comparison, the user equipment reports the beam identification information (beam number, etc.) of the beam and the beam quality information of the beam having the best quality for the user equipment. Therefore, the base station can reduce the time to perform beam scanning and alignment with the user equipment and assign a beam of relatively good quality directly to the user equipment, thereby not accessing the base station. Provide quick access to user equipment.
With reference to FIG. 19, FIG. 19 is a schematic configuration diagram of a second embodiment of the user device according to the present invention. In this embodiment, the user device is Beam scan configured to determine the beam used to transmit data in the first subframe when the base station performs beam scan and alignment with the user equipment in the first subframe. Unit 500, here With the beam scanning unit 500, where the number of beams used to transmit data is 1 or more. Receiving unit 600 configured to receive beam information transmitted by a base station when the base station transmits data to a user device by using a beam. And here, the beam information includes at least the beam identification information and the synchronization signal, with the receiving unit 600. A synchronization unit 700 configured to synchronize with the base station according to the synchronization signal, It includes an identification unit 800 configured to identify the beam transmitted by the base station according to the beam identification information.
Optionally, the sync signal and identification information in the beam information is placed in different fields within the same subframe, or in the same field within the same subframe.
That is, the sync signal and identification information in the beam information is set independently for the processor to be acquired step by step, or The synchronization signal and the identification information in the beam information are set together for the processor to be acquired simultaneously.
Optionally, the user equipment further includes a reporting unit 900.
The beam scanning unit 500 is further configured to perform beam scanning and alignment with the base station in the second subframe, where the scanned beam is to transmit data in the first subframe. The second subframe is the next subframe of the first subframe, at least not including the beam scheduled for.
The reporting unit 900 is configured to report beam selection information to the base station, where the beam selection information is generated by the user equipment according to the beam information transmitted by the base station and the demodulated beam quality information. It includes beam identification information of the optimum beam and beam quality information of the optimum beam, where the optimum beam is acquired after the user equipment performs a comparison according to the beam quality information.
The receiving unit 600 is further configured to perform data transmission with the base station by using the beam assigned to the user equipment by the base station according to the beam selection information.
It should be noted that the beam scanning unit 500, the receiving unit 600, the synchronization unit 700, the identification unit 800 and the reporting unit 900 may exist independently or may be arranged in an integrated manner. In the present embodiment, the beam scanning unit 500, the receiving unit 600, the synchronization unit 700, the identification unit 800, or the reporting unit 900 may be arranged in hardware form independently of the processor of the user equipment, and as a microprocessor. It may be placed, embedded in the processor of the user equipment in hardware form, or stored in the memory of the user equipment in software form, so that the processor of the user equipment is the beam scanning unit 500, Invokes and executes the operations corresponding to receive unit 600, synchronization unit 700, identification unit 800, and reporting unit 900.
For example, in the second embodiment of the user equipment in the present invention (the embodiment shown in FIG. 19), the beam scanning unit 500 may be the processor of the user equipment. The functionality of the receive unit 600, sync unit 700, identification unit 800 and reporting unit 900 may be built into the processor, configured independently of the processor, or stored in memory in software format. The processor calls and implements the functions of the unit. This is not limited to the present embodiment of the present invention. The processor may be a central processing unit (CPU), a microprocessor, a single-chip microcomputer, or the like.
With reference to FIG. 20, FIG. 20 is a schematic configuration diagram of a third embodiment of the user device according to the present invention. In this embodiment, the user device is It includes a receiver 210, a transmitter 220, a memory 230 and a processor 240, where the receiver 210, the transmitter 220, the memory 230 and the processor 240 are connected to a bus, where the memory 230 stores a set of program codes. Processor 240 When the base station performs beam scanning and alignment with the user equipment in the first subframe, the operation of determining the beam used to transmit data in the first subframe, This is an operation in which the base station receives the beam information transmitted by the base station when transmitting data by using the beam when the base station transmits data to the user equipment. The beam information includes at least the beam identification information and the synchronization signal, and the operation and Operation to synchronize with the base station according to the synchronization signal, It is configured to call the program code stored in the memory 230 in order to perform an operation of identifying the beam transmitted by the base station according to the beam identification information.
Optionally, processor 240 is further configured to perform beam scanning and alignment with the base station in the second subframe, where the scanned beam transmits data in the first subframe. The second subframe is the next subframe of the first subframe, at least not including the beam scheduled for.
Optionally, transmitter 220 is configured to report beam selection information to the base station, where the beam selection information is generated by the processor according to the beam information transmitted by the base station and the demodulated beam quality information. It includes beam identification information of the optimum beam and beam quality information of the optimum beam, where the optimum beam is acquired after the processor performs a comparison according to the beam quality information.
The receiver 210 and the transmitter 220 are further configured to perform data transmission with the base station by using the beam assigned to the user equipment by the base station according to the beam selection information.
Embodiments of the present invention further provide a computer storage medium, which stores a program. When the program operates, it includes some or all of the steps recorded in any of the third or fourth embodiments of the communication method of the present invention.
All embodiments herein are described in a gradual manner, each embodiment focusing on differences from other embodiments, and with respect to the same or similar parts of the embodiments, these embodiments. It should be noted that references may be made to. The embodiment of the device is essentially similar to that of the method and is therefore briefly described; for relevant parts, references may be made to the relevant description in the embodiment of the method.
According to the description of the embodiments described above, the present invention has the following advantages:
As each beam is transmitted, the beam information of the beam is inserted into the time-frequency resource block so that it is not necessary to traverse all the beams in each subframe period. This reduces the time spent scanning and aligning and reduces the number of beam changes. The scan period is dynamically adjusted with reference to past beam transmission states, and there is no need to configure a fixed scan period. This can significantly reduce the time slot length occupied by the scan period in the entire frame structure, reduce resource overhead, and ensure that all beams can be transmitted periodically. When a user device that has accessed the base station executes data transmission with the base station, the user device that has not accessed the base station can acquire beam information. This facilitates subsequent quick access for new users.
One of ordinary skill in the art can understand that all or part of the steps of the embodiment of the method may be performed by a program instructing the relevant hardware. The program may be stored on a computer-readable storage medium. When the program runs, the steps of the embodiment of the method are performed. The storage medium described above includes any medium capable of storing the program code, such as ROM, RAM, magnetic disk or optical disk.
The communication methods, base stations and user devices provided in the embodiments of the present invention are described in detail above. The principles and practices of the present invention are described herein by using specific examples. Descriptions of embodiments are provided solely to aid in understanding the methods and core ideas of the present invention. In addition, one of ordinary skill in the art can make changes to specific embodiments and scopes according to the ideas of the present invention. In conclusion, the content of this specification should not be construed as a limitation of the present invention.
100 beam scanning unit 110 receiver 120 transmitter 130 memory 140 processor 200 transmission unit 210 receiver 220 transmitter 230 memory 240 processor 300 receiving unit 400 allocation units 500 beam scanning unit 600 receiving unit 700 sync unit 800 identification unit 900 reporting unit
23 sheets
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Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| JP2012528514A | Cites | Japan | Y | Search report | 2,10,14,23 |
| WO2013188629A2 | Cites | World Intellectual Property Organization (WIPO) | Y | Search report | 2,10,14,23 |
| JP2014524217A | Cites | Japan | XY | Search report | 1,3-9,11-13,15-22,24-26,2,10,14,23 |
23 members in 9 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 2015080443 | China | W | |
| 2015080443 | China | W | |
| CN2015080443 | – | – | – |
| WO2015CN80443 | – | – | – |
Members23
| Document | Office | Kind | |
|---|---|---|---|
| CA2987805A1 | Canada | A1 | |
| WO2016191994A1 | World Intellectual Property Organization (WIPO) | A1 | |
| CN107615864A | China | A | |
| KR20180011194A | Republic of Korea | A | |
| EP3297375A1 | European Patent Office (EPO) | A1 | |
| US2018109307A1 | United States of America | A1 | |
| EP3297375A4 | European Patent Office (EPO) | A4 | |
| BR112017025495A2 | Brazil | A2 | |
| JP2018524953AThis record | Japan | A | |
| RU2688273C1 | Russian Federation | C1 | |
| EP3297375B1 | European Patent Office (EPO) | B1 | |
| JP6596580B2 | Japan | B2 | |
| US10461835B2 | United States of America | B2 | |
| CN110505000A | China | A | |
| US2020021353A1 | United States of America | A1 | |
| KR102082805B1 | Republic of Korea | B1 | |
| EP3624533A1 | European Patent Office (EPO) | A1 | |
| CN107615864B | China | B | |
| CN110505000B | China | B | |
| US11075685B2 | United States of America | B2 | |
| CA2987805C | Canada | C | |
| BR112017025495B1 | Brazil | B1 | |
| EP3624533B1 | European Patent Office (EPO) | B1 |
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Numbers
- Publication
- 2018524953
- Publication, DOCDB
- 2018524953
- Publication, EPODOC
- JP2018524953
- Application
- 2018513703
- Application, DOCDB
- 2018513703
- Application, EPODOC
- JP20180513703
Titles2
- Japanese
- 通信方法、基地局およびユーザ機器
- English
- Communication method, base station and user equipment
Classification
- CPC, 10
- H04B7/088
- H04W72/046
- H04W72/12
- H04W56/001
- H04B7/06952
- H04W72/0446
- H04W24/10
- H04W24/08
- H04W72/542
- H04W72/02
- IPC, 5
- H04W16 28
- H04W88 02
- H04L27 26
- H04B7 06
- H04W72 54
Designated states5
- Regional, 4
- Zimbabwe
- Turkmenistan
- Türkiye
- Togo
- National, 1
- United States of America