发送和接收信道状态信息的系统

System for transmitting and receiving channel state information

Abstract

一种发送和接收信道状态信息的系统,包括步骤:终端接收到发送端发送的导频信号;终端根据接收到的导频信号估计部分下行链路的信道状态信息;终端将所述部分下行链路的信道状态信息与上行探测信号正交叠加在一起进行发射;发送端通过对上行探测信号进行估计得到另外一部分下行链路的信道状态信息;发送端正交解复用得到所述部分下行链路的信道状态信息;发送端利用所述部分下行链路和另外一部分下行链路的信道状态信息对下行数据进行预编码处理后发送给终端。本发明的系统解决了上下行链路天线配置不匹配导致发射端无法获得完整的信道状态信息的问题,并且提高系统的性能而且降低了接收端的复杂度,同时节约了系统开销。
The invention relates to a system for transmitting and receiving channel state information, comprising the following steps: a terminal receives a pilot signal transmitted by a transmitting end; the terminal estimates the channel state information of part of downlinks according to the received pilot signal; the terminal stacks the channel state information of part of the downlinks and an uplink detection signal in an orthogonal mode to be transmitted; the transmitting end obtains the channel state information of the other part of the downlinks by estimating the uplink detection signal; the transmitting end is demultiplexed in an orthogonal mode to obtain the channel state information of part of the downlinks; and the transmitting end uses the channel state information of part of the downlinks and the other channel state information to precode downlink data and transmits the downlink data to the terminal. The system solves the problem that the transmitting end is unable to obtain the whole channel state information due to the mismatch of the antenna configuration of the uplinks and downlinks, increases the performance of the system, reduces the complexity of the receiving end and saves the system overhead simultaneously.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)

    Title

Cited By (9)

    Publication numberPublication dateAssigneeTitle
    CN-102255642-ANovember 23, 2011华为技术有限公司一种干扰消除方法及设备、系统
    CN-102255642-BJanuary 01, 2014华为技术有限公司Method, equipment and system for eliminating interference
    CN-102594506-AJuly 18, 2012中兴通讯股份有限公司Processing method and device of overlapped coding sequences based on code structure
    CN-102594506-BJuly 21, 2017南京中兴新软件有限责任公司基于码结构的交叠编码序列的处理方法和装置
    CN-103597754-AFebruary 19, 2014高通股份有限公司用于多群通信的通信设备
    CN-103597754-BFebruary 15, 2017高通股份有限公司用于多群通信的通信设备
    CN-103873125-BSeptember 15, 2017中国移动通信集团公司一种多天线系统中下行信号的发射方法和设备
    CN-104579586-AApril 29, 2015电信科学技术研究院信道状态信息的反馈方法和装置、以及接收方法和装置
    US-9735846-B2August 15, 2017Qualcomm IncorporatedCommunication devices for multiple group communications