公开(公告)号：US6151328A

公开(公告)日：2000-11-21

申请号：US223758

申请日：1998-12-31

申请人： Hyung Uk Kwon ,  Young Jo Lee

发明人： Hyung Uk Kwon ,  Young Jo Lee

IPC分类号： H04B7/005 ,  H04B7/06 ,  H04B7/216

CPC分类号： H04W52/42 ,  H04B7/0634 ,  H04W52/08 ,  H04W52/12

摘要： An apparatus and method for controlling power in a CDMA system using antenna diversity. The power control apparatus comprises a CDMA base band/IF transmitter for processing an information signal to output K IF signals, K RF modules for converting the K IF signals from the CDMA base band/IF transmitter into K RF signals and transmitting the converted K RF signals through K transmitting antennas, a receiver for receiving a signal from a mobile terminal through a receiving antenna and processing the received signal to output K power control bits and decoded data, and a processor for generating K data channel gains in response to the K power control bits from the receiver and outputting the generated K data channel gains to the CDMA base band/IF transmitter to control transmission powers of the K transmitting antennas. According to the present invention, the transmission power control operation can individually be performed with respect to antennas at the transmitting stage of a base station in consideration of different channel environments.

摘要翻译： 一种使用天线分集在CDMA系统中控制功率的装置和方法。 功率控制装置包括用于处理信息信号以输出K个IF信号的CDMA基带/ IF发射机，用于将来自CDMA基带/ IF发射机的K个IF信号转换成K个RF信号的K个RF模块，并将转换后的K RF 通过K个发送天线的信号，用于通过接收天线从移动终端接收信号并处理接收信号以输出K个功率控制位和解码数据的接收机，以及用于响应于K个功率产生K个数据信道增益的处理器 从接收机控制比特，并将生成的K数据信道增益输出到CDMA基带/ IF发射机，以控制K个发射天线的发射功率。 根据本发明，考虑到不同的信道环境，发射功率控制操作可以相对于基站的发射级的天线单独执行。

公开(公告)号：US06466561B1

公开(公告)日：2002-10-15

申请号：US09224742

申请日：1998-12-31

申请人： Young Jo Lee ,  Hyung Uk Kwon ,  Young Sik Youn ,  Nam Suk Kim ,  Young Woo Yun

发明人： Young Jo Lee ,  Hyung Uk Kwon ,  Young Sik Youn ,  Nam Suk Kim ,  Young Woo Yun

IPC分类号： H04B7216

CPC分类号： H04W52/265 ,  H04B1/707 ,  H04W52/20 ,  H04W52/267 ,  H04W52/282

摘要： The present invention relates to a mobile communication system, particularly relates to a power estimating apparatus of CDMA(code division multiple access) system which performs a power control of a down link or an up link in the CDMA mobile communication system and performs a power control about a CDMA signal by using an extended walsh code. A power estimating method in a CDMA system for distinguishing CDMA channels with a walsh code which is orthogonal to all CDMA channels, comprising the steps of making an extended walsh code having a new format, which is orthogonal to all CDMA channels, by extending a length(code stream) of the walsh code which is used for distinguishing the CDMA channels, according to a walsh function, and estimating a receiving power by correlating a receiving signal with the extended walsh code.

摘要翻译： 移动通信系统技术领域本发明涉及一种CDMA（码分多址）系统的功率估计装置，该系统在CDMA移动通信系统中执行下行链路或上行链路的功率控制，并执行功率控制 关于通过使用扩展沃尔什码的CDMA信号的CDMA系统中的功率估计方法。CDMA系统中的功率估计方法，用于区分具有与所有CDMA信道正交的沃尔什码的CDMA信道，包括以下步骤：制作具有新格式的扩展沃尔什码， 通过根据沃尔什函数扩展用于区分CDMA信道的沃尔什码的长度（码流），并且通过将接收信号与扩展沃尔什码相关来估计接收功率，与所有CDMA信道正交。