发明公开
EP1010258A2 METHOD AND APPARATUS FOR PROCESSING POWER CONTROL SIGNALS IN A MOBILE TELEPHONE SYSTEM
有权
Mobilfunksystem公司的Verfahren und Vorrichtung zur Verarbeitung von Leistungssteuerungsignalen
- 专利标题: METHOD AND APPARATUS FOR PROCESSING POWER CONTROL SIGNALS IN A MOBILE TELEPHONE SYSTEM
- 专利标题(中): Mobilfunksystem公司的Verfahren und Vorrichtung zur Verarbeitung von Leistungssteuerungsignalen
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申请号: EP98943361.0申请日: 1998-08-24
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公开(公告)号: EP1010258A2公开(公告)日: 2000-06-21
- 发明人: SAINTS, Keith, W. , TIEDEMANN, Edward, G., Jr.
- 申请人: QUALCOMM INCORPORATED
- 申请人地址: 6455 Lusk Boulevard 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: 6455 Lusk Boulevard San Diego,California 92121 US
- 代理机构: Walsh, Michael Joseph
- 优先权: US919806 19970829
- 国际公布: WO9910985 19990304
- 主分类号: H04B7/005
- IPC分类号: H04B7/005 ; H04B1/707
摘要:
The transmitted power of a mobile telephone is established by power control bits that are transmitted in a traffic channel from a base station and that are demodulated by a rake receiver in the telephone. The rake receiver includes a plurality of demodulators that demodulate respective fingers of the traffic channel which may be caused by multipath conditions, with the power control bits from each demodulator being combined with the power control bits of the other demodulators in the rake receiver regardless of whether the demodulators are in lock with their respective fingers. The combined power control signal from a rake receiver associated with a first base station is then tested against a threshold. If the combined power is at least equal to the threshold, the combined power control signal is sent to a logic combiner. If other base stations are communicating with the mobile telephone, the combined power control signal from each of these other base stations is also sent to the logic combiner. If any power control signal commands the mobile telephone to decrease its transmitted power, it does so; otherwise, it increases its transmitted power. Alternatively, the power control bits from each demodulator in a rake receiver can be blocked if the finger energy falls below a threshold that depends on the number of fingers from the associated base station.
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