Invention Application
US20020118729A1 Automatic power control system for a code division multiple access (CDMA) communications system
有权
用于码分多址（CDMA）通信系统的自动功率控制系统
- Patent Title: Automatic power control system for a code division multiple access (CDMA) communications system
- Patent Title (中): 用于码分多址（CDMA）通信系统的自动功率控制系统
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Application No.: US10083791Application Date: 2002-02-27
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Publication No.: US20020118729A1Publication Date: 2002-08-29
- Inventor: Gary Lomp , Fatih Ozluturk , John Kowalski
- Applicant: InterDigital Technology Corporation
- Applicant Address: US DE Wilmington
- Assignee: InterDigital Technology Corporation
- Current Assignee: InterDigital Technology Corporation
- Current Assignee Address: US DE Wilmington
- Main IPC: H04K001/00
- IPC: H04K001/00
Abstract:
A receiver receives signals and noise over a frequency spectrum of a desired received signal. The desired received signal is spread using code division multiple access. The received signals and noise are demodulated to produce a demodulated signal. The demodulated signal is despread using a code uncorrelated with a code associated with the desired received signal. A power level of the despread demodulated signal is measured as an estimate of the noise level of the frequency spectrum.
Public/Granted literature
- US06674791B2 Automatic power control system for a code division multiple access (CDMA) communications system Public/Granted day:2004-01-06
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