公开(公告)号：US20040242172A1

公开(公告)日：2004-12-02

申请号：US10799951

申请日：2004-03-12

Applicant: InterDigital Technology Corporation

Inventor： John W. Haim ,  Fryderyk Tyra ,  Louis J. Guccione ,  Timothy A. Axness ,  Donald M. Grieco

IPC: H03G003/20

CPC classification number: H04W52/52 ,  H03G3/001 ,  H03G3/3052 ,  H03G3/3078

Abstract: An automatic gain control (AGC) method according to the present invention applies an initial gain by a digital AGC circuit in a timeslot is determined using a final calculated gain from the same timeslot in the previous frame together with an offset factor. An erase function is activated for a given data sample block when the number of saturated data samples that are detected within the block exceeds a threshold value. The power measurement made by the AGC circuit and used to update the gain is adjusted based on the number of measured data samples that are saturated. These elements provide a gain limiting function and allows limiting of the dynamic range for further signal processing

Abstract translation: 根据本发明的自动增益控制（AGC）方法，利用来自前一帧中的相同时隙的最终计算的增益以及偏移因子来确定时隙中的数字AGC电路的初始增益。 当在该块内检测到的饱和数据样本的数量超过阈值时，对于给定的数据采样块，擦除功能被激活。 由AGC电路进行的用于更新增益的功率测量基于饱和的测量数据样本的数量进行调整。 这些元件提供增益限制功能，并允许限制用于进一步信号处理的动态范围

公开(公告)号：US20040022228A1

公开(公告)日：2004-02-05

申请号：US10630616

申请日：2003-07-30

Applicant: InterDigital Technology Corporation

Inventor： Fryderyk Tyra ,  Louis J. Guccione

IPC: H04B007/216

CPC classification number: H04B1/7103 ,  H04B1/707 ,  H04B1/70755 ,  H04B1/709 ,  H04B17/26 ,  H04B17/327 ,  H04W52/24

Abstract: A received power of a code division multiple access (CDMA) signal is determined. Samples of a spectrum associated with the received CDMA signal are taken as received samples, which are then correlated with a code of the CDMA signal. For correlated samples below a first threshold, those correlated samples are processed by being made to be zero. For samples between the first threshold and a second threshold, those correlated samples are processed by rescaling. The correlated samples above the second threshold are passed unchanged. The received power level of the received CDMA signal is determined using the correlated samples after the processing.

Abstract translation: 确定码分多址（CDMA）信号的接收功率。 将与所接收的CDMA信号相关联的频谱的样本作为接收样本，然后与CDMA信号的码相关。 对于低于第一阈值的相关样本，这些相关样本被处理为零。 对于第一阈值和第二阈值之间的样本，这些相关样本通过重新缩放来处理。 高于第二阈值的相关样本未改变。 接收到的CDMA信号的接收功率电平是在处理之后使用相关采样来确定的。