Method and apparatus for adjusting power control setpoint in a wireless communication system
US6763244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2001 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Jun 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/36
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.