发明名称 |
AUTOMATIC POWER CONTROL SYSTEM FOR A CODE DIVISION MULTIPLE ACCESS (CDMA) COMMUNICATIONS SYSTEM |
摘要 |
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. |
申请公布号 |
US2009103508(A1) |
申请公布日期 |
2009.04.23 |
申请号 |
US20080340939 |
申请日期 |
2008.12.22 |
申请人 |
INTERDIGITAL TECHNOLOGY CORPORATION |
发明人 |
LOMP GARY;OZLUTURK FATIH;KOWALSKI JOHN |
分类号 |
H03K3/84;H04B7/216;H04B1/707;H04B7/005;H04B7/26;H04B17/00;H04J11/00;H04J13/00;H04J13/04;H04J13/10;H04L1/00;H04L7/00;H04L7/033;H04L25/02;H04L27/00;H04L27/20;H04L27/233;H04W52/04;H04W52/14;H04W52/24 |
主分类号 |
H03K3/84 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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