专利名称：METHOD, DEVICE AND SYSTEM FOR
TRANSMITTING CHANNEL INFORMATION
发明人：YANG, XUN,LI, YUNBO,WU, TIANYU,ZHU,
HUFEI
申请号：EP12792938申请日：20120326公开号：EP2717522A4公开日：20140618
摘要：The present invention discloses a method, device, and system for transmittingchannel information, pertaining to the field of radio communication. The method forobtaining channel information includes: transmitting, by a beamformer, a request forobtaining channel information to a beamformee within the duration of a current firstTXOP; receiving a null feedback frame transmitted by the beamformee within theduration of the current first TXOP; within the validity period of the channel information, ifthe beamformer obtains a second TXOP, transmitting, within the second TXOP, a channelinformation indication frame to request the channel information, and receiving thechannel information transmitted by the beamformee. The system includes a beamformerand a beamformee. The present invention saves the signaling resources of thebeamformer and reduces the power consumption of the beamformee.
申请人：HUAWEI TECHNOLOGIES CO., LTD.
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