公开(公告)号：US20200288445A1

公开(公告)日：2020-09-10

申请号：US16759599

申请日：2018-09-05

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Xin SU ,  Runhua CHEN ,  Rakesh TAMRAKAR ,  Qiubin GAO

IPC: H04W72/04 ,  H04W8/24

Abstract: A method for determining a bundling size, user equipment and a network-side device are provided The method includes: reporting, by user equipment, capability information to a network-side device, where the capability information is used to indicate whether the user equipment supports one-physical resource block bundling, and receiving a bundling size set configured by the network-side device for the user equipment according to the capability information, where supporting the one-physical resource block bundling indicates that a turn-off of a physical resource block bundling function is supported; and/or using, by the user equipment, a default bundling size or a bundling size configured via a higher-layer signaling to transmit data if the network-side device turns off a function of dynamic bundling size adjustment.

公开(公告)号：US20200280420A1

公开(公告)日：2020-09-03

申请号：US16645524

申请日：2018-06-28

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Hui LI ,  Qiubin GAO ,  Tamrakar RAKESH ,  Runhua CHEN ,  Xin SU ,  Deshan MIAO ,  Qiuping HUANG ,  Mengjun WANG

IPC: H04L5/00

Abstract: Provided in the embodiments of the present application are a channel state indication (CSI) information reporting and receiving method and a communication device, which are used to provide for a terminal in an NR system a solution for mapping CSI information to an uplink channel and transmitting the same. The method comprises: a terminal receives an uplink channel resource configuration signaling and/or a demodulation reference signal (DMRS) configuration signaling sent by a base station, and determines a mapping symbol set, wherein the DMRS configuration signaling is used to indicate the number of DMRSes configured by a system for an uplink channel and the time-frequency location of an occupied OFDM symbol, the uplink channel resource configuration signaling represents the time-frequency resource of the uplink channel, and the mapping symbol set is a set of symbols adjacent to the OFDM symbol; and the terminal measures a downlink channel, calculates CSI information, encodes the CSI information, and maps an information part comprising rank indication (RI) information onto an RE of at least one orthogonal frequency-division multiplexing (OFDM) symbol in the mapping symbol set to carry out transmission.

公开(公告)号：US20200266865A1

公开(公告)日：2020-08-20

申请号：US16651985

申请日：2018-09-19

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Qiubin GAO ,  Runhua CHEN ,  Rakesh TAMRAKAR

IPC: H04B7/06 ,  H04B17/345 ,  H04L5/00 ,  H04W24/10

Abstract: The present disclosure provides an interference measurement method, a UE and a network side device. The interference measurement method includes: receiving, by the UE, configuration information about an interference measurement reference signal resource and an interference measurement parameter from a network side device; receiving, by the UE, an interference measurement reference signal on the interference measurement reference signal resource based on the configuration information; and calculating, by the UE, an interference estimation value of an interference signal based on the interference measurement parameter and the interference measurement reference signal.

公开(公告)号：US20200244322A1

公开(公告)日：2020-07-30

申请号：US15754954

申请日：2016-07-14

Applicant: China Academy of Telecommunications Technology

Inventor： Hui LI ,  Qiubin GAO ,  Runhua CHEN ,  Wenhong CHEN ,  Tamrakar RAKESH

IPC: H04B7/0456 ,  H04B7/06

Abstract: Disclosed are methods and apparatuses for transmitting coding indication information and determining a pre-coding matrix, for use in resolving the problem that the resolution of code words in a codebook generated by using a combination of a beam vector subgroup and column selection cannot be flexibly adjusted. The method comprises: user equipment determines first pre-coding indication information and second pre-coding indication information, the first pre-coding indication information corresponding to a first-stage pre-coding matrix, the first-stage pre-coding matrix comprising beam vectors in different polarizations, the second pre-coding indication information corresponding to a second-stage pre-coding matrix, the second-stage pre-coding matrix being used for performing amplitude weighting and phase adjusting on all beam vectors in each polarization in the first-stage pre-coding matrix, and the first-stage pre-coding matrix and the second-stage pre-coding matrix being used for generating a pre-coding matrix. Amplitude weighting and phase adjusting are performed on all beam vectors in each polarization in a first-stage pre-coding matrix, so that the resolution of a pre-coding matrix is flexibly adjusted, and the system performance is improved.

公开(公告)号：US20200213979A1

公开(公告)日：2020-07-02

申请号：US16622887

申请日：2018-05-30

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Runhua CHEN ,  Qiubln GAO ,  Rakesh TAMRAKAR ,  Hui LI ,  Qiupirtg HUANG ,  Xin SU

IPC: H04W72/04

Abstract: Embodiments of the present disclosure provide a data transmission method, a data transmission device, a network side device and UE. The data transmission method is applied to a first device and includes: transmitting Uplink (UL) Sounding Reference Signal (SRS) resource configuration information to a second device, where the SRS resource configuration information indicates K SRS resources; receiving an SRS signal transmitted from the second device according to the SRS resource configuration information; determining an SRS Resource Indicator (SRI), where the SRI indicates L SRS resources in the K SRS resources, L is an integer that is larger than or equals 1 and L is less than or equals K; and transmitting the SRI to the second device.

公开(公告)号：US20190044597A1

公开(公告)日：2019-02-07

申请号：US15760582

申请日：2016-08-31

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

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

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/04

Abstract: A channel state information receiving method, a channel state information feedback method, a device, a base station and a terminal are provided. It is related to telecommunication field. The receiving method includes: obtaining group identifiers of groups into which multiple terminals having accessed to a base station are classified; transmitting a triggering signaling to one group of terminals having an identical group identifier; and receiving, on a pre-configured resource block, pieces of channel state information respectively fed back by the group of terminals having the identical group identifier in response to the triggering signaling. With the above technical solution, consumption of downlink signalings of the base station can be reduced and feedback efficiency of channel state information can be improved.

公开(公告)号：US20180331744A1

公开(公告)日：2018-11-15

申请号：US15774268

申请日：2016-10-26

Applicant: China Academy of Telecommunications Technology

Inventor： Qiubin GAO ,  Shanzhi CHEN ,  Runhua CHEN ,  Wenhong CHEN ,  Hui LI ,  Tamrakar RAKESH ,  Shaohui SUN

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

Abstract: Disclosed are channel state information feedback and data transmission method and apparatus. The method comprises: determining a first codebook on a base station side, the first codebook being a set composed of precoding matrixes; determining a first codebook on a terminal side, the first codebook being a set composed of precoding matrixes; calculating channel state information according to the first codebooks; and feeding back the channel state information to a base station. Data transmission is performed on the terminal on the base station side, and in the data transmission process, some or all of the precoding matrixes in the first codebooks are utilized to perform processing, over a resource allocated to a terminal, on data to be transmitted. By using the present application, preceding matrixes needed for open-loop MIMO calculation can be determined, traversing of whole space is avoided, difficulties in system design and implementation are reduced, and the system performance is improved.

公开(公告)号：US20180262245A1

公开(公告)日：2018-09-13

申请号：US15752576

申请日：2016-07-08

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

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

IPC: H04B7/04 ,  H04B7/06

Abstract: The present disclosure relates to the field of communication technology, and provides an information feedback method, an information feedback device and a UE. The information feedback method includes steps of: acquiring PMIs of multiple-level component precoding matrices of a precoding matrix for downlink data transmission; and feeding back the PMI of each of the multiple-level component precoding matrices of the precoding matrix to a base station individually, or feeding back the jointly encoded PMIs, each of which is the PMI of each of the multiple-level component precoding matrices of the precoding matrix, to the base station.

公开(公告)号：US20210336734A1

公开(公告)日：2021-10-28

申请号：US16322460

申请日：2017-07-18

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

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

IPC: H04L5/00 ,  H04W72/04

Abstract: A triggering method and a transmitting method for an uplink reference signal in a communication system, apparatuses thereof, and a storage medium are provided. The communication system includes at least two different signal parameters. The triggering method applied to a network side includes: generating, by the network side, a trigger signaling for triggering a terminal to transmit the uplink reference signal to the network side for one or more times; and transmitting, by the network side, the trigger signaling to the terminal.

公开(公告)号：US20200259574A1

公开(公告)日：2020-08-13

申请号：US16761208

申请日：2018-10-19

Applicant: China Academy of Telecommunications Technology

Inventor： Qiuping HUANG ,  Runhua CHEN ,  Qiubin GAO

IPC: H04B17/309 ,  H04W24/10 ,  H04W16/28

Abstract: A beam detection method and apparatus addresses communication quality for downlink beam detection. The beam detection method comprises: a user equipment receiving beam quality monitoring signals sent by a network device by using M beams; determining signal quality indicators of M beam quality monitoring signals, and determining, based on the signal quality indicator of each of the M beam quality monitoring signals, a beam quality indicator of a beam used for sending a beam quality monitoring signal; generating a first detection report which comprises at least one of indication information of at least one beam, the beam quality indicator of which does not meet a first threshold, from among the M beams, the beam quality indicator of the at least one beam, the beam quality indicator of which does not meet the first threshold, from among the M beams.