公开(公告)号：US06697987B2

公开(公告)日：2004-02-24

申请号：US09899945

申请日：2001-07-09

申请人： Young Jo Lee ,  Ki Jun Kim ,  Chan Ho Kyung

发明人： Young Jo Lee ,  Ki Jun Kim ,  Chan Ho Kyung

IPC分类号： H04L120

CPC分类号： H04L1/0068 ,  H04L1/0013 ,  H04L1/1671 ,  H04L1/1816 ,  H04L1/1819 ,  H04L1/1825 ,  H04L1/1845

摘要： A method of transmitting packet data to a receiver in a communication system using a Hybrid ARQ technique is disclosed. In accordance with one illustrative embodiment of the present invention, an index representative of how much the first packet being transmitted such as a signal-to-noise (Eb/No) ratio is compared to a predetermined threshold value when an error is occurred during the step of decoding the packet. If the index is greater than or equal to the threshold value, the first packet transmitted is stored in a buffer and a receiver requests to transmit a second additional packet encoded with a lower code rate. On the other hand, if the index is less than the threshold value, the receiver requests to re-transmit the first packet encoded with the same code rate.

摘要翻译： 公开了一种使用混合ARQ技术在通信系统中向接收机发送分组数据的方法。 根据本发明的一个说明性实施例，表示在第一个分组正在传输的第一个数据包（例如信噪比（Eb / No）比）多少的索引与预定的阈值进行比较时 对数据包进行解码的步骤。 如果索引大于或等于阈值，则将所发送的第一分组存储在缓冲器中，接收器请求发送以较低编码率编码的第二附加分组。 另一方面，如果索引小于阈值，则接收器请求重新发送以相同码率编码的第一分组。

公开(公告)号：US06615053B1

公开(公告)日：2003-09-02

申请号：US09671208

申请日：2000-09-28

申请人： Young Jo Lee ,  Ki Jun Kim ,  Jong Sun Han

发明人： Young Jo Lee ,  Ki Jun Kim ,  Jong Sun Han

IPC分类号： H04B705

CPC分类号： H04W52/48 ,  H04W52/08 ,  H04W52/143 ,  H04W52/50

摘要： A method for controlling power of a forward common channel is disclosed. The present method allows a base station to obtain an initial power value for a closed-loop power control of mobile stations when a base station transmits data to a plurality of mobile stations through an a forward common channel. Particularly, the present method permits a base station to determine an initial power according to either a variation of reception power transmitted from a mobile station or a variation of the PCBs transmitted from a mobile station.

摘要翻译： 公开了一种用于控制正向公共通道的功率的方法。 当基站通过前向公共信道向多个移动站发送数据时，本方法允许基站获得用于移动台的闭环功率控制的初始功率值。 特别地，本方法允许基站根据从移动台发送的接收功率的变化或从移动台发送的PCB的变化来确定初始功率。

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。