Training beam transmission method, apparatus, and system

    公开(公告)号:US10270509B2

    公开(公告)日:2019-04-23

    申请号:US15878406

    申请日:2018-01-23

    Abstract: The present invention provides a training beam transmission method, an apparatus, and a system. The training beam sending method includes: determining, by a transmit end, a training beam set to be sent to a receive end; sending, by the transmit end to the receive end, indication information indicating a combination vector of the training beam set; and sequentially sending, by the transmit end, training beams in the training beam set to the receive end. According to the training beam transmission method, the apparatus, and the system that are provided in the present invention, overheads required for sending a training beam can be reduced.

    Data transmission method, transmitter and receiver in coordinated communication system
    22.
    发明授权
    Data transmission method, transmitter and receiver in coordinated communication system 有权
    数据传输方式,协调通信系统中的发射机和接收机

    公开(公告)号:US08731095B2

    公开(公告)日:2014-05-20

    申请号:US13760912

    申请日:2013-02-06

    CPC classification number: H04B7/0456 H04B7/024 H04J11/0033

    Abstract: The present invention provides a data transmission method, a transmitter, and a receiver in a coordinated communication system, including: precoding, by a first transmitter, its payload data by using a first precoding matrix to obtain first precoded data; precoding, by the first transmitter, coordinated data by using a second precoding matrix to obtain second precoded data to cancel interference with the first precoded data at a receiver caused by data transmitted by another transmitter; and transmitting the first precoded data and the second precoded data after the precoding to the receiver. According to the method, the first transmitter codes its payload data by using the first precoding matrix; and codes the coordinated data by using the second precoding matrix to cancel, by using different precoding matrices, the interference with the first precoded data at the receiver caused by the data transmitted by another transmitter.

    Abstract translation: 本发明提供一种协调通信系统中的数据传输方法,发射机和接收机,包括:通过使用第一预编码矩阵,由第一发射机对其有效载荷数据进行预编码,以获得第一预编码数据; 由所述第一发射机预编码,通过使用第二预编码矩阵来获得第二预编码数据,以消除由由另一发射机发送的数据引起的由接收机引起的第一预编码数据的干扰; 以及在所述预编码之后将所述第一预编码数据和所述第二预编码数据发送到所述接收机。 根据该方法,第一发射机通过使用第一预编码矩阵对其有效载荷数据进行编码; 并且通过使用第二预编码矩阵对协调数据进行编码,以通过使用不同的预编码矩阵来消除由由另一发射机发送的数据引起的接收机处的第一预编码数据的干扰。

    Symbol processing method and apparatus

    公开(公告)号:US12301397B2

    公开(公告)日:2025-05-13

    申请号:US17733783

    申请日:2022-04-29

    Abstract: A symbol processing method and apparatus are provided. The method includes: obtaining, based on a plurality of complex-valued symbols, a first set corresponding to a first transmit symbol and a second set corresponding to a second transmit symbol; performing a copy operation on the first set and the second set, so that both the first set and the second set have a first complex-valued symbol; performing signal processing on the first set and the second set; and performing phase adjustment on the first transmit symbol and/or the second transmit symbol after the signal processing, to ensure that a symbol component whose end position is the first reference point in the first transmit symbol is the same as a symbol component whose end position is the second reference point in the second transmit symbol. This application can ensure that an inter-symbol guard period is flexibly configured.

    METHODS AND APPARATUS FOR SENSING-ASSISTED DOPPLER COMPENSATION

    公开(公告)号:US20250097885A1

    公开(公告)日:2025-03-20

    申请号:US18941772

    申请日:2024-11-08

    Abstract: Aspects of the present application relate to sensing-based, mobility-aware waveform adaptation. A transmitting device may estimate a velocity vector for a mobile device. The velocity vector estimate may be based on measurements made at the mobile device and fed back to the transmitting device or based on measurements made at other devices in the environment and provided to the transmitting device. The transmitting device may, based on the estimate of the velocity vector, obtain a Doppler variable estimate for a signal path between the transmitting device and the mobile device. The transmitting device may then adapt a to-be-transmitted waveform based on the Doppler variable estimate for the signal path and then transmit the adapted waveform. Occasionally, the transmitting device may obtain updates to parameters that describe the location and mobility of the mobile device. On the basis of the updates, the transmitting device may update the waveform adaptation.

    Method and apparatus for determining measured value of reference signal

    公开(公告)号:US12192814B2

    公开(公告)日:2025-01-07

    申请号:US18494510

    申请日:2023-10-25

    Abstract: This application relates to the field of communications technologies. A method includes: A first device receives first configuration information sent by a second device. The first configuration information includes at least one of information about a reference signal, frequency range information of a radio frequency signal, or bandwidth range information. The first device measures a first reference signal set, to obtain a first measured value. The first reference signal set includes at least two reference signals. The first device determines an expansion factor α based on the first configuration information. The first device determines a second measured value based on the first measured value and the expansion factor α.

    Method, apparatus and storage medium for receiving a PDCCH

    公开(公告)号:US11824697B2

    公开(公告)日:2023-11-21

    申请号:US17666313

    申请日:2022-02-07

    Abstract: Embodiments of this application disclose a data receiving method, a data sending method, a data transmission method, and a related apparatus and system. The method includes: sending, by a network device in each transmission subwindow corresponding to a broadcast signal, the broadcast signal to user equipment by using a different antenna port, where the transmission subwindow is obtained by dividing, based on preset subwindow information, a transmission window corresponding to the broadcast signal; and determining, by the UE, a transmission subwindow in which a downlink transmit beam is located; and receiving the broadcast signal in a time in which the transmission subwindow is located, where the time in which the transmission subwindow is located is calculated based on the pre-obtained subwindow information.

    Random access method, network device, and terminal

    公开(公告)号:US11706807B2

    公开(公告)日:2023-07-18

    申请号:US16875292

    申请日:2020-05-15

    CPC classification number: H04W74/0833 H04W74/006 H04W74/02

    Abstract: A random access method includes determining, by a network device, configuration information and sending the configuration information to a terminal. The configuration information indicates at least a quantity of random access preambles transmitted on one random access resource, a quantity of contention-based random access preambles transmitted on the one random access resource, a quantity of contention-free random access preambles transmitted on the one random access resource, the quantity of random access preambles associated with one downlink signal, the quantity of contention-free random access preambles associated with the one downlink signal, the quantity of contention-based random access preambles associated with the one downlink signal, or a quantity of transmitted downlink signals associated with the one random access resource.

    System information redundancy version determining method and apparatus

    公开(公告)号:US11489645B2

    公开(公告)日:2022-11-01

    申请号:US17036214

    申请日:2020-09-29

    Abstract: This application provides a system information redundancy version determining method and apparatus. A communications device determines at least one time-domain resource unit Ux, and determines a redundancy version RVx for system information on the time-domain resource unit Ux according to the time-domain resource unit Ux, where x is an identifier of the time-domain resource unit, the redundancy version RVx satisfies RVx=(Int1(X1/X2*(Int2(x/M) mod K))) mod L, x is a non-negative integer, X1 and X2 are non-zero real numbers, M is a positive real number, K and L are positive integers, mod indicates a modulo operation, Int1 indicates rounding up or rounding down, and Intl indicates rounding up or rounding down.

    Signal transmission method, related apparatus, and system

    公开(公告)号:US11387956B2

    公开(公告)日:2022-07-12

    申请号:US16786435

    申请日:2020-02-10

    Inventor: Mao Yan Huang Huang

    Abstract: This application discloses a signal transmission method. The method may include: obtaining, by a terminal, a first configuration parameter; determining, by the terminal based on the first configuration parameter from random access resources separately associated with a plurality of downlink signals, a random access resource used for random access preamble retransmission; and retransmitting, by the terminal, a random access preamble by using the random access resource used for random access preamble retransmission.

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