Transmission mode and rate selection for a wireless communication system
    51.
    发明授权
    Transmission mode and rate selection for a wireless communication system 有权
    无线通信系统的传输模式和速率选择

    公开(公告)号:US07564814B2

    公开(公告)日:2009-07-21

    申请号:US11101086

    申请日:2005-04-06

    IPC分类号: H04W4/00

    摘要: To select a transmission mode to use for a data transmission via a MIMO channel from station A to station B, station A obtains channel information used for spatial processing and determines the age of this information. Station A selects one of multiple transmission modes based on the age of the channel information and possibly other information (e.g., the fading characteristic of the MIMO channel). To select rate(s) to use for the data transmission, station A obtains channel state information (CSI) indicative of the received signal quality for the MIMO channel, e.g., received SNRs or “initial” rates. Station A determines the age of the CSI and selects one or more “final” rates based on the CSI, the age of the CSI, the selected transmission mode, and possibly other information. Station A processes data in accordance with the selected transmission mode and final rate(s) and transmits the processed data to station B.

    摘要翻译: 为了选择通过从站A到站B的MIMO信道进行数据传输的传输模式,站A获得用于空间处理的信道信息,并确定该信息的年龄。 站A基于信道信息的年龄和可能的其他信息(例如,MIMO信道的衰落特性)来选择多种传输模式之一。 为了选择用于数据传输的速率,站A获得指示MIMO信道的接收信号质量的信道状态信息(CSI),例如接收到的SNR或“初始”速率。 站A确定CSI的年龄,并且基于CSI,CSI的年龄,所选择的传输模式以及可能的其他信息来选择一个或多个“最终”速率。 站A根据选择的传输模式和最终速率处理数据,并将处理的数据发送到站B.

    METHOD AND APPARATUS FOR RESOLVING BLINDED-NODE PROBLEMS IN WIRELESS NETWORKS
    52.
    发明申请
    METHOD AND APPARATUS FOR RESOLVING BLINDED-NODE PROBLEMS IN WIRELESS NETWORKS 有权
    在无线网络中解决盲点问题的方法和装置

    公开(公告)号:US20090154372A1

    公开(公告)日:2009-06-18

    申请号:US11955257

    申请日:2007-12-12

    IPC分类号: G06F11/00 H04Q7/00

    CPC分类号: H04W74/0841

    摘要: Techniques for resolving blinded-node problems are described herein. One aspect operates on the physical (PHY) layer only, which a second layer operates on the medium access control (MAC) layer. Both aspects involve having a node stop processing a data packet that is not destined for it so as to be able to reserve its resources to detect control and other packets. An apparatus for implementing the techniques are also disclosed.

    摘要翻译: 本文描述了用于解决盲节点问题的技术。 一个方面仅在物理(PHY)层上操作,第二层在介质访问控制(MAC)层上操作。 这两个方面涉及使节点停止处理不发往其的数据分组,以便能够保留其资源以检测控制和其他分组。 还公开了一种用于实现该技术的装置。

    Transmission mode and rate selection for a wireless communication system
    55.
    发明申请
    Transmission mode and rate selection for a wireless communication system 有权
    无线通信系统的传输模式和速率选择

    公开(公告)号:US20050249159A1

    公开(公告)日:2005-11-10

    申请号:US11101086

    申请日:2005-04-06

    摘要: To select a transmission mode to use for a data transmission via a MIMO channel from station A to station B, station A obtains channel information used for spatial processing and determines the age of this information. Station A selects one of multiple transmission modes based on the age of the channel information and possibly other information (e.g., the fading characteristic of the MIMO channel). To select rate(s) to use for the data transmission, station A obtains channel state information (CSI) indicative of the received signal quality for the MIMO channel, e.g., received SNRs or “initial” rates. Station A determines the age of the CSI and selects one or more “final” rates based on the CSI, the age of the CSI, the selected transmission mode, and possibly other information. Station A processes data in accordance with the selected transmission mode and final rate(s) and transmits the processed data to station B.

    摘要翻译: 为了选择通过从站A到站B的MIMO信道进行数据传输的传输模式,站A获得用于空间处理的信道信息,并确定该信息的年龄。 站A基于信道信息的年龄和可能的其他信息(例如,MIMO信道的衰落特性)来选择多种传输模式之一。 为了选择用于数据传输的速率,站A获得指示MIMO信道的接收信号质量的信道状态信息(CSI),例如接收到的SNR或“初始”速率。 站A确定CSI的年龄,并且基于CSI,CSI的年龄,所选择的传输模式以及可能的其他信息来选择一个或多个“最终”速率。 站A根据选择的传输模式和最终速率处理数据,并将处理的数据发送到站B.