发明申请
US20090290563A1 Antenna/Beam Selection Training in MIMO Wireless LANs with Different Sounding Frames
有权
具有不同探测帧的MIMO无线局域网天线/光束选择训练
- 专利标题: Antenna/Beam Selection Training in MIMO Wireless LANs with Different Sounding Frames
- 专利标题(中): 具有不同探测帧的MIMO无线局域网天线/光束选择训练
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申请号: US12293458申请日: 2006-03-30
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公开(公告)号: US20090290563A1公开(公告)日: 2009-11-26
- 发明人: Daqing Gu , Hongyuan Zhang , Jinyun Zhang , Andreas F. Molisch
- 申请人: Daqing Gu , Hongyuan Zhang , Jinyun Zhang , Andreas F. Molisch
- 国际申请: PCT/US06/11574 WO 20060330
- 主分类号: H04W84/12
- IPC分类号: H04W84/12 ; H04B7/02
摘要:
A method selects antennas in a multiple-input, multiple-output (MIMO) wireless local area network (WLAN) that includes a plurality of stations, and each station includes a set of antennas. Plural consecutive packets, received at a station, include plural consecutive sounding packets. Each sounding packet corresponds to a different subset of the set of antennas, and at least one of the plural consecutive packets includes a high throughput (HT) control field including a signal to initiate antenna selection and a number N indicative of a number of sounding packets which follow the at least one packet including the HT control field and which are to be used for antenna selection. A channel matrix is estimated based on a characteristic of the channel as indicated by the received N sounding packets, and a subset of antennas is selected according to the channel matrix. Station and computer program product embodiments include similar features.
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