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    Method and device for sending and detecting enhanced physical downlink control channel
    12.
    发明授权
    Method and device for sending and detecting enhanced physical downlink control channel 有权

    公开(公告)号：US09603138B2

    公开(公告)日：2017-03-21

    申请号：US14419048

    申请日：2013-08-02

    Applicant: China Academy of Telecommunications Technology

    Inventor： Rui Zhao ,  Xueming Pan ,  Rakesh Tamrakar ,  Zukang Shen

    IPC: H04W72/04

    CPC classification number: H04W72/042

    Abstract: Disclosed are a method and a device for sending and detecting an enhanced physical downlink control channel (E-PDCCH), relating to the field of wireless communications, and used for solving the problem of how to send downlink control information through the E-PDCCH. In the method, when a current subframe needs to send downlink control information to a terminal by adopting a frequency domain distributed transmission mode, a base station selects, according to the current aggregation level, at least one available distributed E-CCE in a distributed E-PDCCH time frequency resource area of the current subframe, and uses the selected distributed E-CCE to send the downlink control information to the terminal. The present application solves the problem of how to transmit downlink control information through the E-PDCCH.

    BLIND DETECTION MODE DETERMINATION METHOD, BLIND DETECTION METHOD AND DEVICE
    13.
    发明申请
    BLIND DETECTION MODE DETERMINATION METHOD, BLIND DETECTION METHOD AND DEVICE 有权
    盲检测模式确定方法，盲检测方法和装置

    公开(公告)号：US20150189628A1

    公开(公告)日：2015-07-02

    申请号：US14413671

    申请日：2013-07-04

    Applicant: China Academy of Telecommunications Technology

    Inventor： Xueming Pan ,  Rui Zhao ,  Rakesh Tamrakar

    IPC: H04W72/04

    CPC classification number: H04W72/042 ,  H04L1/00 ,  H04L1/0038 ,  H04L1/0046 ,  H04L5/0053 ,  H04W48/12 ,  H04W72/0446

    Abstract: Disclosed are a blind detection mode determination method, blind detection method and device, the blind detection mode determination method comprising: a base station determines the E-PDCCH blind detection mode of a terminal in a subframe according to system configuration information and the blind detection capability of the terminal, and informs the terminal of the determined E-PDCCH blind detection mode of the terminal in the subframe. The blind detection method comprises: a terminal determines the E-PDCCH blind detection mode in a subframe, and conducts E-PDCCH blind detection in the subframe according to the determined E-PDCCH blind detection mode. The E-PDCCH blind detection mode of a UE in a subframe is determined according to the resource occupied in a subframe by the system configuration information, enabling the UE to conduct E-PDCCH blind detection in the subframe according to the determined E-PDCCH blind detection mode, thus avoiding unnecessary energy overhead.

    Abstract translation: 本发明公开了一种盲检测模式确定方法，盲检测方法和装置，所述盲检测模式确定方法包括：基站根据系统配置信息和盲检测能力确定子帧中的终端的E-PDCCH盲检测模式 并且在子帧中通知终端确定的终端的E-PDCCH盲检测模式。 盲检测方法包括：终端确定子帧中的E-PDCCH盲检测模式，并根据确定的E-PDCCH盲检测模式进行子帧中的E-PDCCH盲检测。 根据系统配置信息，根据子帧占用的资源确定子帧中的UE的E-PDCCH盲检测模式，使UE能够根据确定的E-PDCCH盲目在子帧中进行E-PDCCH盲检测 检测模式，从而避免不必要的能量开销。

    Method for determining bundling size, user equipment and network-side device
    14.
    发明授权
    Method for determining bundling size, user equipment and network-side device 有权

    公开(公告)号：US11902984B2

    公开(公告)日：2024-02-13

    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 ,  H04W72/23 ,  H04W8/24

    CPC classification number: H04W72/23 ,  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.

    Data transmission method and data transmission device
    15.
    发明授权
    Data transmission method and data transmission device 有权

    公开(公告)号：US11490403B2

    公开(公告)日：2022-11-01

    申请号：US16969151

    申请日：2019-02-12

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Qiuping Huang ,  Runhua Chen ,  Qiubin Gao ,  Rakesh Tamrakar

    IPC: H04W72/04 ,  H04W72/12

    Abstract: A data transmission method and a data transmission device are provided. The method includes: receiving first indication information sent by a network side device, the first indication information is used to instruct the UE to send a first signal; and determining actual first uplink transmission characteristic of the first signal when valid first uplink transmission characteristic of the first signal is not obtained, and sending the first signal through the actual first uplink transmission characteristic, or not sending the first signal when valid first uplink transmission characteristic of the first signal is not obtained.

    Channel state information feedback method and device
    16.
    发明授权
    Channel state information feedback method and device 有权

    公开(公告)号：US11329708B2

    公开(公告)日：2022-05-10

    申请号：US16081878

    申请日：2017-02-21

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Hui Li ,  Qiubin Gao ,  Runhua Chen ,  Wenhong Chen ,  Rakesh Tamrakar

    IPC: H04B7/06 ,  H04B7/0456

    Abstract: A CSI feedback method and a CSI feedback device are provided. The CSI feedback method includes: determining a first precoding matrix in a set of first precoding matrices, and determining a first precoding matrix index value corresponding to the first precoding matrix; determining a second precoding matrix in a set of second precoding matrices, and determining a second precoding matrix index value corresponding to the second precoding matrix, the second precoding matrix including a beam selection section for selecting beams from the beam groups for each antenna group and a phase adjustment section for adjusting phases among the plurality of antenna groups; and feeding back the first precoding matrix index value and the second precoding matrix index value to an access device, so as to enable the access device to select corresponding precoding matrices from the set of first precoding matrices and the set of second precoding matrix in accordance with the first precoding matrix index value and the second precoding matrix index value, and implement calculation on the selected precoding matrices to obtain a precoding matrix for data transmission.

    Signal processing method and device
    17.
    发明授权
    Signal processing method and device 有权

    公开(公告)号：US11316634B2

    公开(公告)日：2022-04-26

    申请号：US16607433

    申请日：2018-03-28

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Rakesh Tamrakar ,  Qiubin Gao ,  Hui Li

    IPC: H04L5/00 ,  H04B7/06 ,  H04L1/00

    Abstract: Embodiments of the present disclosure provide a signal processing method and a signal processing device, which relate to the field of communication technology and used for the purpose of saving signaling resources. The signal processing method provided by embodiments of the present disclosure includes: transmitting a first indication message to a terminal device, wherein the first indication message is to trigger the terminal device to transmit feedback information on pilot signals; transmitting N downlink pilot signals to the terminal device, where N is an integer greater than or equal to 2, and the transmission manner of the N downlink pilot signals is semi-persistent transmission or aperiodic transmission, so that the terminal device, according to an acquired precoding manner of the downlink pilot signals and the first indication message, determines a feedback manner of the feedback information on the N downlink pilot signals and performs feedback, and wherein the feedback manner includes not feeding back or one-time feeding back of the feedback information on the N downlink pilot signals. In the embodiments of the present disclosure, the base station or the terminal device may not transmit feedback information on a plurality of pilot signals, or may one-time transmit feedback information on a plurality of pilot signals, thereby effectively saving signaling resources.

    Method, apparatus, and electronic device of determining beam reciprocity of a device
    19.
    发明授权
    Method, apparatus, and electronic device of determining beam reciprocity of a device 有权

    公开(公告)号：US11101860B2

    公开(公告)日：2021-08-24

    申请号：US16494989

    申请日：2018-03-08

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Qiubin Gao ,  Rakesh Tamrakar ,  Xin Su ,  Qiuping Huang ,  Hui Li

    IPC: H04B7/06 ,  H04B7/08 ,  H04B7/0413

    Abstract: A method, an apparatus, and an electronic device of determining beam reciprocity of a device, and a computer readable storage medium are provided. The method includes: instructing a second device to transmit, by using a transmission beam obtained based on beam reciprocity, a reference signal; receiving the reference signal transmitted by the second device, and calculating a reception quality of the reference signal; receiving a plurality of beam training signals transmitted by the second device, and calculating reception qualities of the plurality of beam training signals, respectively; comparing the reception quality of the reference signal with a reference reception quality obtained based on the reception qualities of the plurality of beam training signals, and determining, based on a result of the comparison, whether the beam reciprocity of the second device is established or not.

    Transmission beam determination method, transmitting end device and receiving end device
    20.
    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.

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