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    Data transmission method and device
    2.
    发明授权
    Data transmission method and device 有权

    公开(公告)号：US10912014B2

    公开(公告)日：2021-02-02

    申请号：US16319807

    申请日：2017-06-08

    Applicant: China Academy of Telecommunications Technology

    Inventor： Qiuping Huang ,  Qiubin Gao ,  Runhua Chen ,  Hui Li ,  Tamrakar Rakesh ,  Yang Song ,  Mengjun Wang ,  Chuanjun Li ,  Xin Su ,  Yu Yang

    IPC: H04W48/16 ,  H04J11/00 ,  H04L27/26

    Abstract: Disclosed are a data transmission method and device. The method comprises: a sending end sending at least one synchronization signal (SI), with the SI carrying a first identifier; and at a time-frequency location of system information corresponding to the SI, sending the system information, the system information carrying information for indicating a second identifier, and identification information about the sending end comprising the first identifier and the second identifier. According to a mapping relationship between an SI and a first identifier, a receiving end can obtain the first identifier after detecting the SI; and by means of carrying information for indicating a second identifier in system information, the receiving end can obtain the second identifier after detecting the system information, so that the receiving end can obtain all the identification information about the sending end according to the first identifier and the second identifier.

    Transmission beam determination method, transmitting end device and receiving end device
    3.
    发明授权
    Transmission beam determination method, transmitting end device and receiving end device 有权

    公开(公告)号：US11025328B2

    公开(公告)日：2021-06-01

    申请号：US16489734

    申请日：2018-02-24

    Applicant: China Academy of Telecommunications Technology

    Inventor： Qiubin Gao ,  Runhua Chen ,  Rakesh Tamrakar ,  Mengjun Wang ,  Xin Su

    IPC: H04B7/06 ,  H04B7/0408 ,  H04B7/08

    Abstract: The present disclosure provides a transmission beam determination method, a transmitting end device and a receiving end device. The transmission beam determination method includes: transmitting, by the transmitting end device, beam training signals for N number of transmission beams to the receiving end device; receiving, by the transmitting end device, identification information about Q number of transmission beams in the N number of transmission beams and group information about each transmission beam in the Q number of transmission beams from the receiving end device, the Q number of transmission beams including G number of transmission beam groups, the G number of transmission beam groups being acquired by the receiving end device in accordance with a measurement result, the measurement result being a measurement result acquired after the receiving end device has received and measured the beam training signals from the transmitting end device; and determining, by the transmitting end device, that a signal is capable of being transmitted simultaneously to the receiving end device via transmission beams in the Q number of transmission beams belonging to different transmission beam groups.

    Beam scanning method and related device
    5.
    发明授权
    Beam scanning method and related device 有权

    公开(公告)号：US10892805B2

    公开(公告)日：2021-01-12

    申请号：US16338322

    申请日：2017-07-25

    Applicant: China Academy of Telecommunications Technology

    Inventor： Xin Su ,  Qiubin Gao ,  Runhua Chen ,  Tamrakar Rakesh ,  Chuanjun Li ,  Mengjun Wang ,  Hui Li ,  Qiuping Huang

    IPC: H04B7/0452 ,  H04B7/0408 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04

    Abstract: Disclosed are a beam scanning method and a related device, used for solving the problem that, during the existing process of determining the optimal transceiving beam by performing traversal search on a combination of potential transceiving beams, a large amount of system overhead needs to be occupied, thus reducing the system efficiency and the adaptability to a time-varying channel. The method comprises: a first communication node determines at least one transmitted beam according to the optimal receiving beam group between a receiver of the first communication node and a transmitter of a second communication node; the first communication node sequentially sends a signal to the second communication node by means of the transmitter according to the determined at least one transmitted beam until the optimal transmitted beam is determined.

    METHOD AND DEVICE FOR TRAINING DOWNLINK BEAMS
    6.
    发明申请
    METHOD AND DEVICE FOR TRAINING DOWNLINK BEAMS 有权

    公开(公告)号：US20210344407A1

    公开(公告)日：2021-11-04

    申请号：US16324880

    申请日：2017-08-03

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Qiuping HUANG ,  Qiubin GAO ,  Runhua Chen ,  Hui Li ,  Rakesh Tamrakar ,  Yang Song ,  Xin Su ,  Yu Yang ,  Mengjun Wang ,  Chuanjun Li

    IPC: H04B7/08 ,  H04B7/0408 ,  H04B7/06

    Abstract: A method and a device for transmitting downlink reception beam training signals are provided. The method at the second device side includes: receiving a downlink reception beam training trigger notification message sent by a first device; receiving downlink reception beam training signals sent by the first device, based on the downlink reception beam training trigger notification message; and performing a downlink reception beam training based on the downlink reception beam training signals. The method at the first device side includes: sending a downlink reception beam training trigger notification message to a second device when determining that a downlink reception beam training is to be performed for the second device, and sending downlink reception beam training signals to the second device after the downlink reception beam training trigger notification message is sent to the second device.

    Method and apparatus for phase compensation using phase-tracking reference signal
    10.
    发明授权
    Method and apparatus for phase compensation using phase-tracking reference signal 有权

    公开(公告)号：US10862644B2

    公开(公告)日：2020-12-08

    申请号：US16349014

    申请日：2017-12-28

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Hui Li ,  Qiubin Gao ,  Rakesh Tamrakar ,  Xin Su ,  Runhua Chen ,  Qiuping Huang ,  Chuanjun Li ,  Mengjun Wang

    IPC: H04L5/00 ,  H04B7/0456

    Abstract: The present disclosure provides a reference signal transmission method, a transmitter and a receiver. The reference signal transmission method includes: precoding, by a transmitter, a data stream for user data through a second precoding matrix so as to acquire D virtual data streams; precoding, by the transmitter, the D virtual data streams through a first precoding matrix, and transmitting the D precoded virtual data streams to a receiver via T antenna groups, each antenna group including one or more antenna units or antenna ports having a same phase noise; transmitting, by the transmitter, D demodulation reference signals to the receiver; and transmitting, by the transmitter, M phase-tracking reference signals to the receiver, the M phase-tracking reference signals being adopted to track phase changes in the T antenna groups caused by one or more phase noise sources.

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