Invention Grant
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
- Patent Title: Method and apparatus for adjusting power control setpoint in a wireless communication system
- Patent Title (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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Application No.: US10889808Application Date: 2004-07-12
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Publication No.: US07643842B2Publication Date: 2010-01-05
- Inventor: Tao Chen , Jack M. Holtzman , Fuyun Ling , Keith Saints , Nagabhushana Sindhushayana , Charles E. Wheatley, III
- Applicant: Tao Chen , Jack M. Holtzman , Fuyun Ling , Keith Saints , Nagabhushana Sindhushayana , Charles E. Wheatley, III
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Howard H. Sao; Eric Ho
- Main IPC: H04B1/16
- IPC: H04B1/16 ; H04W52/18

Abstract:
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.
Public/Granted literature
- US20050003848A1 Method and apparatus for adjusting power control setpoint in a wireless communication system Public/Granted day:2005-01-06
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