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22. 发明申请

WO2010148076A1 MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT WIRELESS COMMUNICATIONS 审中-公开
标题翻译：多用户多输入多输出无线通信
公开(公告)号：WO2010148076A1
公开(公告)日：2010-12-23
申请号：PCT/US2010/038805
申请日：2010-06-16
申请人： QUALCOMM INCORPORATED , SAMPATH, Hemanth , JONES, IV, Vincent Knowles , WENTINK, Maarten Menzo , ABRAHAM, Santosh P.
发明人： SAMPATH, Hemanth , JONES, IV, Vincent Knowles , WENTINK, Maarten Menzo , ABRAHAM, Santosh P.
IPC分类号： H04B7/06
CPC分类号： H04W72/1284 , H04B7/0452 , H04W52/146 , H04W72/121
摘要： A method for enhanced multi-user multiple input multiple output (MU-MIMO or SDMA) wireless communications. The proposed method may reduce and/or eliminate stringent frequency and time synchronization requirements for stations (STAs) to participate in a downlink MU-MIMO transaction by utilizing deterministic scheduling. According to the invention, a request (e.g. a training or RTS) message is transmitted to a plurality of stations (STAs), the request message comprising scheduling information indicating when each of the apparatuses should transmit a message (e.g. a sounding message) in response to the request (e.g. a training or RTS) message, one or more response (e.g. sounding messages) messages are received from the STAs transmitted according to the scheduling information, transmission information (e.g. channel matrix) is computed based at least on the response (e.g. sounding) messages; and transmitting date (SDMA data frames) simultaneously (concurrently) to the STAs using the computed transmission information (e.g. channel matrix).
摘要翻译：一种用于增强多用户多输入多输出（MU-MIMO或SDMA）无线通信的方法。所提出的方法可以通过利用确定性调度来减少和/或消除站（STA）对参与下行MU-MIMO事务的严格的频率和时间同步要求。根据本发明，向多个站（STA）发送请求（例如训练或RTS）消息，所述请求消息包括指示每个设备何时应当发送消息（例如，发声消息）的响应中的调度信息（例如训练或RTS）消息，从根据调度信息发送的STA接收到一个或多个响应（例如，探测消息）消息，至少基于响应来计算传输信息（例如，信道矩阵）消息; 以及使用所计算的传输信息（例如信道矩阵）同时（同时）发送日期（SDMA数据帧）到STA。

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