公开(公告)号：US06977915B2

公开(公告)日：2005-12-20

申请号：US09772622

申请日：2001-01-30

申请人： Xixian Chen ,  Neil N. McGowan ,  Weigang Li ,  Jeffrey D. Stanier ,  M. Khaled Islam ,  Qiang Shen ,  Xin Jin

发明人： Xixian Chen ,  Neil N. McGowan ,  Weigang Li ,  Jeffrey D. Stanier ,  M. Khaled Islam ,  Qiang Shen ,  Xin Jin

IPC分类号： H04B1/7097 ,  H04B7/005 ,  H04B7/216

CPC分类号： H04W52/08 ,  H04B1/7097 ,  H04W52/24

摘要： A method and system for closed loop power control in a wireless communication network. A received signal is despread. The signal power of the despread received signal is estimated. The noise power of the despread received signal is estimated. Estimating the noise power includes multiplying the despread received signal with an orthogonal noise code to cancel the received signal, accumulating the multiplied despread received signal over one frame and determining a signal-to-noise ratio of the received signal at least in part by dividing the estimated signal power by the estimated noise power. A reverse power control bit is determined based on the determined signal-to-noise ratio.

摘要翻译： 一种用于无线通信网络中闭环功率控制的方法和系统。 接收到的信号被解扩。 估计解扩接收信号的信号功率。 估计解扩接收信号的噪声功率。 估计噪声功率包括将去扩展接收信号与正交噪声码相乘以抵消接收信号，在一帧上累积相乘的解扩接收信号，并至少部分地通过将接收信号的信噪比除以 估计信号功率由估计的噪声功率。 基于确定的信噪比来确定反向功率控制位。