- 专利标题: Wireless communication apparatus and wireless communication method
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申请号: US16785189申请日: 2020-02-07
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公开(公告)号: US11490368B2公开(公告)日: 2022-11-01
- 发明人: Masayuki Hoshino , Akihiko Nishio , Seigo Nakao , Daichi Imamura , Yasuaki Yuda
- 申请人: SUN PATENT TRUST
- 申请人地址: US NY New York
- 专利权人: SUN PATENT TRUST
- 当前专利权人: SUN PATENT TRUST
- 当前专利权人地址: US NY New York
- 代理机构: Seed IP Law Group LLP
- 优先权: JP2009-133133 20090602,JP2009-254160 20091105,JP2010-030237 20100215
- 主分类号: H04W72/04
- IPC分类号: H04W72/04 ; H04W24/10 ; H04W72/12 ; H04B17/24 ; H04B17/00 ; H04B7/06 ; H04L1/00 ; H04L5/00 ; H04L1/16 ; H04W88/02
摘要:
To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.
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