公开(公告)号：US20040176054A1

公开(公告)日：2004-09-09

申请号：US10613463

申请日：2003-07-03

Applicant: InterDigital Technology Corporation

Inventor： Eldad Zeira ,  Mihaela Beluri ,  Robert Lind Olesen ,  Rui Yang

IPC: H04B017/02

CPC classification number: H04W52/52

Abstract: A system and method for automatic gain control for a wireless transmit and receive unit in a time-slotted communications system includes initializing an automatic gain control loop, sampling a received signal, and estimating the power of the received signal. The estimated power of the received signal is compared with a reference power level and an error signal is generated based upon the difference between the estimated power and the reference power level. The error signals generated by a plurality of received signals are accumulated in an accumulator, and the value of the accumulator is looked up in a table to locate a control word for an attenuator. The control word is then passed to the attenuator to adjust the gain.

Abstract translation: 用于时隙通信系统中的无线发射和接收单元的自动增益控制的系统和方法包括：初始化自动增益控制环路，对接收到的信号进行采样，以及估计接收信号的功率。 将接收信号的估计功率与参考功率电平进行比较，并且基于估计功率与参考功率电平之间的差产生误差信号。 由多个接收信号产生的误差信号被累加在累加器中，并且在表中查找累加器的值以定位衰减器的控制字。 然后将控制字传递给衰减器以调整增益。