Invention Grant
US06999427B1 CDMA reception apparatus and received signal power measuring apparatus in CDMA mobile communication system
失效
CDMA接收装置和CDMA移动通信系统中的接收信号功率测量装置
- Patent Title: CDMA reception apparatus and received signal power measuring apparatus in CDMA mobile communication system
- Patent Title (中): CDMA接收装置和CDMA移动通信系统中的接收信号功率测量装置
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Application No.: US09619361Application Date: 2000-07-19
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Publication No.: US06999427B1Publication Date: 2006-02-14
- Inventor: Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
- Applicant: Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
- Applicant Address: JP Tokyo
- Assignee: NTT DoCoMo, Inc.
- Current Assignee: NTT DoCoMo, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Workman Nydegger
- Priority: JP11-206789 19990721
- Main IPC: H04B7/185
- IPC: H04B7/185

Abstract:
In a CDMA reception apparatus, averaging part for averaging at least one of vector, amplitude and power of received signal of a plurality of transmit power control sections is provided. Further, propagation path variation estimator for estimating a propagation path variation of the present transmit power control section from respective transmit power control sections in the past to obtain a propagation path variation estimation value and propagation path variation correction part (multiplier) for correcting by the propagation path variation estimation value are further provided, wherein the averaging part averages at least one of vector, amplitude and power of received signal of the plurality of transmit power control sections corrected by the propagation path variation correction part (multiplier). With this configuration, the measurement accuracy is improved by measuring received signal power using a plurality of slots including past slots, resulting in more accurate transmit power control.
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