Communication method, terminal device, and network device

    公开(公告)号:US10973043B2

    公开(公告)日:2021-04-06

    申请号:US16281621

    申请日:2019-02-21

    Abstract: A method includes: receiving, by a first terminal device, a first downlink control channel on a third time-frequency resource; and based on the first downlink control channel and on a first time-frequency resource, sending, by the first terminal device, a first uplink message or receiving a first downlink message, where transmission directions of the first uplink message and a second downlink message are different, and the second downlink message is a message that the network device schedules a second terminal device to receive on a second time-frequency resource; transmission directions of the first downlink message and a second uplink message are different, and the second uplink message is a message that the network device schedules the second terminal device to send on the second time-frequency resource; and the first time-frequency resource and the second time-frequency resource include a same time domain resource and a same frequency domain resource.

    SIGNAL SENDING METHOD, NETWORK DEVICE, AND TERMINAL DEVICE

    公开(公告)号:US20210067398A1

    公开(公告)日:2021-03-04

    申请号:US17028634

    申请日:2020-09-22

    Abstract: A signal receiving method, an apparatus and a communication system. The network device determines a subcarrier location of a to-be-sent first signal and a subcarrier location of a to-be-sent second signal, where subcarriers occupied by the first signal are continuous subcarriers in a first group of resource elements, subcarriers occupied by the second signal are continuous subcarriers in a second group of resource elements, a quantity of the subcarriers occupied by the first signal is the same as a quantity of the subcarriers occupied by the second signal, and a subcarrier spacing in the first group of resource elements is different from a subcarrier spacing in the second group of resource elements, the first signal and the second signal are primary synchronization signals. The network device sends the first signal to the terminal device and sends the second signal to the terminal device or other terminal device.

    Random access preamble sequence generation method and user equipment

    公开(公告)号:US10932299B2

    公开(公告)日:2021-02-23

    申请号:US16364556

    申请日:2019-03-26

    Abstract: A random access preamble sequence generation method and user equipment are provided. The method includes the following: when receiving first notification signaling sent by a base station, determining, by UE, to calculate a cyclic shift value by using a first solution; obtaining a first logical root sequence number, and determining a root sequence based on the first logical root sequence number; and generating a random access preamble sequence based on the root sequence and the cyclic shift value, where the first solution is a solution of calculating the cyclic shift value when a Doppler shift of the UE is less than a first preset value and greater than a second preset value, the first preset value is less than twice of a physical random access channel (PRACH) subcarrier spacing, the second preset value is greater than the PRACH subcarrier spacing.

    Communication method, apparatus, and system

    公开(公告)号:US10756850B2

    公开(公告)日:2020-08-25

    申请号:US16265578

    申请日:2019-02-01

    Abstract: The present disclosure discloses a communication method, an apparatus, and a system. The communication method includes: receiving, by a base station, uplink data sent by a terminal device; decoding the uplink data; and sending, by the base station, feedback information of the uplink data. The feedback information is used to indicate a decoding status of the uplink data, and carries information about an identifier. The identifier includes an identity of the terminal device or an identifier of the uplink data. In this way, the terminal device is prevented from receiving incorrect feedback information during conflicting transmission.

    Communication method based on non-orthogonal transmission, and device

    公开(公告)号:US10609697B2

    公开(公告)日:2020-03-31

    申请号:US15719752

    申请日:2017-09-29

    Abstract: The present invention discloses a communication method based on non-orthogonal transmission, and a device. The method includes: receiving, by first user equipment UE, first downlink control information sent by a base station, where the first downlink control information includes a downlink control parameter of the first UE and an index of a radio network temporary identifier RNTI of second UE; receiving, by the first UE, second downlink control information sent by the base station; and obtaining, by the first UE, a data signal of the first UE according to the index of the RNTI of the second UE, the downlink control parameter of the second UE, the data signal of the associated user equipment group, and the downlink control parameter of the first UE. Signaling overheads can be reduced according to embodiments of the present invention.

    Semi-orthogonal transmission-based communication method and device

    公开(公告)号:US10588118B2

    公开(公告)日:2020-03-10

    申请号:US15805386

    申请日:2017-11-07

    Abstract: A semi-orthogonal transmission-based communication method and a device, with the method including receiving, by first user equipment, downlink control information sent by a base station, where the downlink control information includes at least one of downlink control parameter of the first user equipment, pairing layer information of the first user equipment, modulation scheme information of second user equipment, power allocation information, an identifier of the first user equipment, or pairing information, and receiving, by the first user equipment, a data signal of an associated user equipment group that is sent by the base station, by the first user equipment, the data signal of the first user equipment according to the downlink control information and the data signal of the associated user equipment group.

    Pulse shaping method, transmitter, receiver, and system

    公开(公告)号:US10554353B2

    公开(公告)日:2020-02-04

    申请号:US16147410

    申请日:2018-09-28

    Abstract: This application discloses a pulse shaping method, a transmitter, a receiver, and a system. The transmitter includes an inverse Fourier transform module, a pulse shaping filter, a pulse shaping controller, and a parallel-to-serial conversion module. The pulse shaping controller is configured to: receive pulse configuration signaling, generate, based on the pulse configuration signaling, a pulse parameter corresponding to a to-be-configured pulse, and output the pulse parameter to the pulse shaping filter. The pulse shaping filter is configured to: perform subcarrier-level filtering on an output signal of the inverse Fourier transform module, perform pulse shaping processing on the output signal of the inverse Fourier transform module based on the pulse parameter, and output a processed signal in serial by using the P/S module. Different pulse parameters correspondingly represent different pulse shapes. In the foregoing solution, pulse shaping can be flexibly configured, to support different communication scenarios.

    Method for Sending Carrier Information, Base Station, and Terminal

    公开(公告)号:US20190342130A1

    公开(公告)日:2019-11-07

    申请号:US16517282

    申请日:2019-07-19

    Abstract: Embodiments of this application provide a method for sending carrier information, and the method includes: performing, by a base station, subcarrier mapping on a first carrier in a first subcarrier mapping manner, where subcarriers corresponding to the first subcarrier mapping manner have frequency offset of a first offset value relative to subcarriers corresponding to a second subcarrier mapping manner, and the subcarriers corresponding to the second subcarrier mapping manner are symmetric with respect to a carrier center frequency of the first carrier, and include no subcarrier on the carrier center frequency of the first carrier; and sending, by the base station, indication information to a terminal, where the indication information carries information about the first offset value.

    MESSAGE PROCESSING METHOD AND APPARATUS
    39.
    发明申请

    公开(公告)号:US20190230553A1

    公开(公告)日:2019-07-25

    申请号:US16370371

    申请日:2019-03-29

    Abstract: Embodiments of the present disclosure provide a message processing method and apparatus. The method includes: determining a transmission type of information to be sent to a terminal device and a transmission parameter corresponding to the transmission type; and sending, to the terminal device, a notification message carrying an indication field, where the indication field is used to indicate the transmission type and the transmission parameter, so that the terminal device receives data based on the transmission type and the transmission parameter; and at least one state of the indication field indicates that the transmission type is a first multiuser superposition transmission type, or at least one state of the indication field indicates that the transmission type is a third multiuser superposition transmission type. Based on the message processing method and apparatus provided in the embodiments of the present disclosure, transmission efficiency of a system can be increased.

    Signal Sending Method, Network Device, and Terminal Device

    公开(公告)号:US20190173716A1

    公开(公告)日:2019-06-06

    申请号:US16272084

    申请日:2019-02-11

    Abstract: A signal receiving method, an apparatus and a communication system. The network device determines a subcarrier location of a to-be-sent first signal and a subcarrier location of a to-be-sent second signal, where subcarriers occupied by the first signal are continuous subcarriers in a first group of resource elements, subcarriers occupied by the second signal are continuous subcarriers in a second group of resource elements, a quantity of the subcarriers occupied by the first signal is the same as a quantity of the subcarriers occupied by the second signal, and a subcarrier spacing in the first group of resource elements is different from a subcarrier spacing in the second group of resource elements, the first signal and the second signal are primary synchronization signals. The network device sends the first signal to the terminal device and sends the second signal to the terminal device or other terminal device.

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