公开(公告)号：US20160269082A1

公开(公告)日：2016-09-15

申请号：US15156397

申请日：2016-05-17

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Qiubin GAO ,  Ranran ZHANG ,  Wenhong CHEN ,  Ying PENG ,  Hui LI

IPC: H04B7/02 ,  H04L12/24 ,  H04L5/00 ,  H04W24/10 ,  H04B7/06

CPC classification number: H04B7/024 ,  H04B7/0417 ,  H04B7/0621 ,  H04B7/0626 ,  H04L1/0026 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057 ,  H04L41/0806 ,  H04W24/08 ,  H04W24/10 ,  H04W72/02 ,  H04W72/0413 ,  H04W72/06

Abstract: An information transmission method and equipment based on CoMP transmission are described. A user equipment determines a main transmission point. The user equipment determines RANK information of the main transmission point as well as channel state information corresponding to the RANK information. The user equipment sends the RANK information of the main transmission point and the channel state information to a network side equipment. The UE reports channel state information of limited RANK of every transmission point, channel state information of unlimited RANK of the main transmission point, and relative phase information between the transmission points, etc., to the network side equipment.

Abstract translation: 描述了基于CoMP传输的信息传输方法和设备。 用户设备确定主要传输点。 用户设备确定主传输点的RANK信息以及对应于RANK信息的信道状态信息。 用户设备向网络侧设备发送主要传输点的RANK信息和信道状态信息。 UE向网络侧设备报告每个传输点的有限RANK的信道状态信息，主传输点的无限RANK的信道状态信息和传输点之间的相对相位信息等。

公开(公告)号：US20150341096A1

公开(公告)日：2015-11-26

申请号：US14379072

申请日：2013-02-06

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Qiubin GAO ,  Ranran ZHANG

IPC: H04B7/06 ,  H04B1/56 ,  H04W24/02 ,  H04B7/04

CPC classification number: H04B7/0615 ,  H04B1/56 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0634 ,  H04B17/21 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0224 ,  H04W24/02

Abstract: An embodiment of the present invention relates to the technical field of wireless communications, in particular to an aerial calibration method, system and device. In the prior art, an air interface calibration method involving a user equipment (UE) requires the UE to feed back a channel coefficient, and a channel coefficient direct quantization method occupies a great deal of uplink overhead and reduces system efficiency. The present invention solves the above problem. The method in the embodiment of the present invention comprises: the UE measures a downlink channel and determines a downlink channel matrix; the UE determines a first weighting matrix for aerial calibration according to the downlink channel matrix; the UE notifies a network side of the determined first weighting matrix. In the embodiment of the present invention, a UE decomposes the characteristic value of the downlink channel matrix, or reports the identifier corresponding to the first weighting matrix to the network side device, thus reducing the occupied uplink overhead and improving system efficiency.

Abstract translation: 本发明的实施例涉及无线通信的技术领域，特别涉及一种航空校准方法，系统和装置。 在现有技术中，涉及用户设备（UE）的空中接口校准方法要求UE反馈信道系数，并且信道系数直接量化方法占用大量的上行链路开销并降低系统效率。 本发明解决了上述问题。 本发明实施例中的方法包括：UE测量下行链路信道，确定下行链路信道矩阵; UE根据下行链路信道矩阵确定用于航空校准的第一加权矩阵; UE向网络侧通知所确定的第一加权矩阵。 在本发明的实施例中，UE将下行链路信道矩阵的特征值分解，或将与第一加权矩阵对应的标识符报告给网络侧设备，从而减少占用的上行链路开销并提高系统效率。