发明授权
US07643842B2 Method and apparatus for adjusting power control setpoint in a wireless communication system
失效
用于在无线通信系统中调整功率控制设定点的方法和装置
- 专利标题: Method and apparatus for adjusting power control setpoint in a wireless communication system
- 专利标题(中): 用于在无线通信系统中调整功率控制设定点的方法和装置
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申请号: US10889808申请日: 2004-07-12
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公开(公告)号: US07643842B2公开(公告)日: 2010-01-05
- 发明人: Tao Chen , Jack M. Holtzman , Fuyun Ling , Keith Saints , Nagabhushana Sindhushayana , Charles E. Wheatley, III
- 申请人: Tao Chen , Jack M. Holtzman , Fuyun Ling , Keith Saints , Nagabhushana Sindhushayana , Charles E. Wheatley, III
- 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 Howard H. Sao; Eric Ho
- 主分类号: H04B1/16
- IPC分类号: H04B1/16 ; H04W52/18
摘要:
Techniques to adjust the setpoint of a power control loop in a wireless communication system. The setpoint may be adjusted based on frame status indicative of erased/good decoded frames, one or more (typically soft) metrics indicative of the confidence in the decoded results, power surplus/deficit indicative of the difference between the received signal quality and the setpoint, setpoint surplus/deficit indicative of the difference between the setpoint and a threshold Eb/Nt needed for the desired level of performance, or a combination thereof. The metrics may include re-encoded symbol error rate, re-encoded power metric, modified Yamamoto metric, minimum or average LLR among decoded bits, number of decoding iterations, and possibly others. The setpoint may be adjusted in different manners and/or by different amounts depending on the above-noted factors. The techniques may be employed for forward and/or reverse links in CDMA systems.
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