发明授权
- 专利标题: Precoding with partially stale feedback
- 专利标题(中): 部分陈旧反馈的预编码
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申请号: US13414932申请日: 2012-03-08
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公开(公告)号: US09363002B2公开(公告)日: 2016-06-07
- 发明人: Ali S. Khayrallah , Yi-Pin Eric Wang
- 申请人: Ali S. Khayrallah , Yi-Pin Eric Wang
- 申请人地址: SE Stockholm
- 专利权人: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- 当前专利权人: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- 当前专利权人地址: SE Stockholm
- 代理机构: Patents on Demand, P.A.
- 代理商 Brian K. Buchheit; Scott M. Garrett
- 主分类号: H04B7/06
- IPC分类号: H04B7/06 ; H04L25/03 ; H04L1/00 ; H04B7/04 ; H04B7/02 ; H04B17/373
摘要:
A system and method in which a base station treats the Channel State Information (CSI) from wireless terminals as only partially-stale, and exploits this partially-stale CSI to predict the current channel from old estimates of the channel. The predicted channel is then used to design a precoder. The base station shapes the transmitted signal with the precoder so as to match it as closely as possible to the current channel. Particular embodiments thus combine the benefits of the stale feedback scheme with precoding to match the channel. Consequently, the signal received at a terminal is better conditioned, thereby providing a greater overall boost in performance of the communication arrangement between the base station and the terminal. The usage of partially-stale CSI can be important for dense networks with a large number of simple terminals.
公开/授权文献
- US20130237212A1 PRECODING WITH PARTIALLY STALE FEEDBACK 公开/授权日:2013-09-12
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