公开(公告)号：US20190103902A1

公开(公告)日：2019-04-04

申请号：US16082908

申请日：2017-02-21

Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY

Inventor： Qiubin GAO ,  Wenhong CHEN ,  Hui LI ,  Runhua CHEN ,  Rakesh TAMRAKAR

IPC: H04B7/0417 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639

Abstract: The present application provides a method and a device for transmitting feedback information. The method includes: determining, by a transmitting terminal, a first code book in accordance with a channel measurement result, precoding matrices included in the first code book being obtained through transformation of a same construction matrix; calculating, by the transmitting terminal, to obtain a first CQI in accordance with all or part of the precoding matrices in the first code book; and transmitting, by the transmitting terminal, first indication information for indicating the first code book and second indication information for indicating the first CQI to a receiving terminal.

公开(公告)号：US20190222369A1

公开(公告)日：2019-07-18

申请号：US16324471

申请日：2017-07-24

Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY

Inventor： Rakesh TAMRAKAR ,  Qiubin GAO ,  Runhua CHEN ,  Hui LI ,  Qiuping HUANG ,  Mengjun WANG ,  Chuanjun LI ,  Yu YANG ,  Yang SONG ,  Xin SU

IPC: H04L5/00 ,  H04W28/02 ,  H04W72/04 ,  H04B1/713

CPC classification number: H04L5/005 ,  H04B1/713 ,  H04L5/0005 ,  H04L5/0012 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0091 ,  H04W28/0215 ,  H04W72/0453

Abstract: A method for transmitting uplink Sounding Reference Signal, SRS, a terminal, a network side device and a storage medium are provided. The method includes determining a transmission manner for one or more uplink SRSs in a wideband system by a terminal according to a configuration from a network side device, wherein the wideband system is configured with a plurality of basic parameters; transmitting the one or more uplink SRSs to the network side device in the wideband system by the terminal according to the transmission manner.

公开(公告)号：US20200186225A1

公开(公告)日：2020-06-11

申请号：US16623375

申请日：2018-04-13

Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY

Inventor： Tamrakar RAKESH ,  Qiubin GAO ,  Xin SU ,  Hui LI ,  Runhua CHEN ,  Qiuping HUANG

IPC: H04B7/06 ,  H04L5/00

Abstract: Disclosed by the present invention are a method, a network side device and a terminal for indicating a pilot precoding mode, wherein the method comprises: The network side device assigns at least one group of pilots to the terminal, wherein each group of pilots comprises at least one pilot. The network side device determines pilot precoding indication information for the at least one group of pilots, wherein the pilot precoding indication information is used to characterize whether each pilot in each group of pilots uses the same precoding matrix. The network side device sends the at least one group of pilots and the pilot precoding indication information to the terminal. The present invention may solve the technical problem not disclosed in prior art of a solution for how a base station or a terminal specifically indicates a pilot precoding mode, so as to improve the control efficiency of a network side device.

公开(公告)号：US20190089497A1

公开(公告)日：2019-03-21

申请号：US16082529

申请日：2017-02-08

Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY

Inventor： Hui LI ,  Qiubin GAO ,  Runhua CHEN ,  Rakesh TAMRAKAR ,  Wenhong CHEN

IPC: H04L5/00 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04L5/005 ,  H04B7/00 ,  H04B7/0473 ,  H04B7/0626 ,  H04B7/066 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/006

Abstract: The present disclosure provides a reference signal mapping method and a reference signal mapping device. An N-port reference signal pattern is acquired in accordance with a 4-port or 8-port reference signal pattern, and N is an integer greater than 16. The N-port reference signal pattern includes an 18-port, 20-port, 24-port, 28-port or 32-port reference signal pattern. In the case of mapping a reference signal, RE positions to which a CSI-RS is mapped are determined in accordance with the N-port reference signal pattern, and resource mapping is performed on the CSI-RS in accordance with the RE positions, so as to map more-than-16-port CSI-RS, thereby to transmit the more-than-16-port CSI-RS.