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ADAPTIVE METHODS FOR OPTIMIZING SOUNDING AND CHANNEL FEEDBACK OVERHEAD IN SU-MIMO AND MU-MIMO BEAMFORMING
ADAPTIVE METHODS FOR OPTIMIZING SOUNDING AND CHANNEL FEEDBACK OVERHEAD IN SU-MIMO AND MU-MIMO BEAMFORMING
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机译:SU-MIMO和MU-MIMO波束成形中用于优化声音和信道反馈开销的自适应方法
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摘要
Disclosed herein is a system, apparatus, and method for optimizing sounding and feedback overhead in a wireless digital network utilizing a beamforming technique by adaptively changing the frequency of sounding transmissions. The exemplary method comprises: transmitting a first plurality of sounding frames based on a first sounding interval, wherein the first sounding interval is a first period of time between transmissions of two sounding frames in the first plurality of sounding frames; receiving a plurality of feedback frames comprising information associated with the first plurality of sounding frames; based on the plurality of feedback frames: selecting a second sounding interval, different than the first sounding interval, for transmitting a second plurality of sounding frames; and transmitting the second plurality of sounding frames based on the second sounding interval, wherein the second sounding interval is a second period of time between transmissions of two sounding frames in the second plurality of sounding frames.
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