发明授权
- 专利标题: Method and apparatus for separable channel state feedback in a wireless communication system
- 专利标题(中): 无线通信系统中可分离信道状态反馈的方法和装置
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申请号: US12582166申请日: 2009-10-20
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公开(公告)号: US08385452B2公开(公告)日: 2013-02-26
- 发明人: Alexei Y. Gorokhov
- 申请人: Alexei Y. Gorokhov
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理商 Florin Corie
- 主分类号: H04B7/02
- IPC分类号: H04B7/02
摘要:
Systems and methodologies are described herein that facilitate the generation and use of separable, hierarchical channel state feedback in a wireless communication system. As described herein, in the event that multiple network nodes cooperate to conduct downlink transmissions to a network user, channel state feedback as reported by the network user can be separated into intra-node feedback relating to per-node channel conditions and inter-node feedback relating to relative phase and/or amplitude between channels corresponding to respective nodes. Further, a network user can select to report intra-node feedback and/or inter-node feedback based on network instructions, a cooperation strategy to be utilized by respective network nodes, or the like. As additionally described herein, respective codebooks on which inter-node and intra-node channel feedback is based can be configured to convey information relating to a partial channel description and/or to vary based on resource units (e.g., sub-bands, resource blocks, etc.) utilized for downlink communication.
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