发明公开
- 专利标题: RANK STEP-DOWN FOR MIMO SCW DESIGN EMPLOYING HARQ
- 专利标题(中): RANK灰度与HARQ MIMO SCW设计
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申请号: EP06760502.2申请日: 2006-05-31
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公开(公告)号: EP1889379A2公开(公告)日: 2008-02-20
- 发明人: SAMPATH, Hemanth , KADOUS, Tamer , KHANDEKAR, Aamod , AGRAWAL, Avneesh
- 申请人: QUALCOMM INCORPORATED
- 申请人地址: 5775 Morehouse Drive San Diego, California 92121 US
- 专利权人: QUALCOMM INCORPORATED
- 当前专利权人: QUALCOMM INCORPORATED
- 当前专利权人地址: 5775 Morehouse Drive San Diego, California 92121 US
- 代理机构: Dunlop, Hugh Christopher
- 优先权: US686111P 20050531; US731146P 20051028
- 国际公布: WO2006130541 20061207
- 主分类号: H04B7/06
- IPC分类号: H04B7/06 ; H04L1/18 ; H04L1/06
摘要:
Systems and methodologies are described that facilitate reducing rank (e.g., of a user device) as a number of transmissions there from increases. Such rank step-down can improve interference resistance and facilitate maintaining code rate despite transmission propagation. Additionally, rank step-down information can be encoded along with CQI information to generate a 5-bit CQI signal that can facilitate updating a user's rank upon each CQI transmission (e.g., approximately every 5 ms). The described systems and/or methods can be employed in a single code word (SCW) wireless communication environment with a hybrid automatic request (HARQ) protocol.
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