发明授权
US08284686B2 Antenna/beam selection training in MIMO wireless LANS with different sounding frames
有权
天线/波束选择训练在具有不同声音帧的MIMO无线LAN中
- 专利标题: Antenna/beam selection training in MIMO wireless LANS with different sounding frames
- 专利标题(中): 天线/波束选择训练在具有不同声音帧的MIMO无线LAN中
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申请号: US12293458申请日: 2006-03-30
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公开(公告)号: US08284686B2公开(公告)日: 2012-10-09
- 发明人: Daqing Gu , Hongyuan Zhang , Jinyun Zhang , Andreas F. Molisch
- 申请人: Daqing Gu , Hongyuan Zhang , Jinyun Zhang , Andreas F. Molisch
- 申请人地址: US MA Cambridge
- 专利权人: Mitsubishi Electric Research Laboratories, Inc.
- 当前专利权人: Mitsubishi Electric Research Laboratories, Inc.
- 当前专利权人地址: US MA Cambridge
- 代理商 Dirk Brinkman; Gene Vinokur
- 国际申请: PCT/US2006/011574 WO 20060330
- 国际公布: WO2007/114804 WO 20071011
- 主分类号: H04W4/00
- IPC分类号: H04W4/00
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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