Method and apparatus for adjusting power control setpoint in a wireless communication system
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United States of America Patent
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Jul 13, 2004
Grant Date -
Nov 7, 2002
app pub date -
Mar 15, 2001
filing date -
Mar 15, 2001
priority date (Note) -
Expired
status (Latency Note)
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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 E.sub.b /N.sub.t 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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