| 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 | US9564963(B2) | 申请公布日期 | 2017.02.07 |
| 申请号 | US200812340939 | 申请日期 | 2008.12.22 |
| 申请人 | InterDigital Technology Corporation | 发明人 | Lomp Gary R.;Ozluturk Faith M.;Kowalski John |
| 分类号 | H04L27/00;H04B7/26;H04B1/707;H04B1/7075;H04B1/708;H04B1/7085;H04B1/709;H04B1/7093;H04B1/711;H04J13/00;H04J13/10;H04L25/02;H04L27/20;H04L27/233;H04W52/04;H04W52/08;H04W52/14;H04W52/24;H04W52/32;H04W52/34;H04W52/36;H04W52/50;H04W52/52;H04W52/54;G06F13/374;H03H17/02;H04L5/14;H04N1/00;H04N1/333;H04B1/7115;H04B1/712;H04J13/12;H04L1/00;H04W52/26;H04W52/44;H04W52/60;H03H17/06;H04B1/7077;H04J13/16 | 主分类号 | H04L27/00 |
| 代理机构 | Volpe and Koenig, P.C. | 代理人 | Volpe and Koenig, P.C. |
| 主权项 | 1. A code division multiple access (CDMA) subscriber unit comprising: circuitry configured to receive at least one power control command on a forward channel, wherein the at least one power control command indicates either an increase or decrease in transmission power level; and circuitry configured to adjust transmission power levels, of both a first reverse channel including traffic data and a second reverse channel including pilot bits, based on a value of the at least one power control command, wherein the transmission power levels of the first reverse channel and the second reverse channel are different. | ||
| 地址 | Wilmington DE US | ||