Communications method and apparatus

    公开(公告)号:US12022441B2

    公开(公告)日:2024-06-25

    申请号:US17535280

    申请日:2021-11-24

    Abstract: This application may be applied to an internet of vehicles, for example, V2X and LTE-V. A first terminal apparatus determines, a first resource pool. The first terminal apparatus detects control information of a second terminal apparatus, where the control information indicates second service data of the second terminal apparatus, and the control information includes location information of the second terminal apparatus, a first frequency domain resource, and a periodicity of the second service data. The first terminal apparatus determines an unavailable time-frequency resource in the first resource pool based on location information of the first terminal apparatus, the location information of the second terminal apparatus, a first threshold, the first frequency domain resource, and the periodicity of the second service data. The first terminal apparatus selects a first time-frequency resource from available time-frequency resources in the first resource pool to transmit first service data.

    Sidelink information transmission method, communications device, and network device

    公开(公告)号:US11902185B2

    公开(公告)日:2024-02-13

    申请号:US17205644

    申请日:2021-03-18

    Abstract: A sidelink information transmission method, a communications device, and a network device, the method including sending, by a network device, first indication information to a device, the first indication information indicating a first resource that is a resource set used to transmit sidelink information, where the first indication information is used to obtain a correspondence satisfied by a time-domain resource and a frequency-domain resource of a resource that is in the first resource and that is used to transmit the sidelink control information, and sending, to the device, control information indicating a second resource belonging to the first resource, and having a third resource used to send the sidelink control information to a second communications device and satisfying the correspondence, and having a fourth resource used by the device to send the sidelink data to a second device based on the sidelink control information.

    Data transmission method, related device, and system

    公开(公告)号:US11317425B2

    公开(公告)日:2022-04-26

    申请号:US17011685

    申请日:2020-09-03

    Abstract: N time-frequency resources are determined by a first communications device. Any two of the N time-frequency resources are nonconsecutive in at least one of a time domain and a frequency domain; each of the N time-frequency resources is smaller than a time-frequency resource required for transmitting to-be-transmitted data, a sum of the N time-frequency resources is greater than or equal to the time-frequency resource required for transmitting the to-be-transmitted data and N is a positive integer greater than or equal to 2. First indication information is sent on M of the N time-frequency resources. The first indication information is used to indicate that the N time-frequency resources are used to send the to-be-transmitted data, M is a positive integer less than or equal to N. The to-be-transmitted data are sent on the N time-frequency resources so that time-frequency resource utilization is improved.

    Random access method, user equipment, base station, and random access system

    公开(公告)号:US11284442B2

    公开(公告)日:2022-03-22

    申请号:US16576785

    申请日:2019-09-20

    Abstract: A random access method, user equipment (UE), a base station, and a random access system, are provided to address relatively long service delay. In various embodiments, after downlink synchronization with a cell is obtained, UE can determine a preamble sequence of the UE in the cell, where the UE has not obtained uplink synchronization with the cell. The UE can then obtain service data and generate a scrambling code, and scramble the service data based on the scrambling code to obtain scrambled service data. The UE can then configure, based on a predetermined resource mapping relationship, time-frequency resources respectively occupied by the preamble sequence and the scrambled service data. The UE then sends on the configured time-frequency resources, the preamble sequence and the scrambled service data to a base station the cell belongs to and receives random access response sent by the base station based on the preamble sequence.

    Node handover method, apparatus, and system in a software defined protocol network

    公开(公告)号:US11122482B2

    公开(公告)日:2021-09-14

    申请号:US15883932

    申请日:2018-01-30

    Abstract: A node handover method, apparatus, and system are provided. The method includes: receiving a protocol configuration request message sent by a target access node, where the protocol configuration request message includes a quality of service parameter of UE; determining, according to the quality of service parameter, a function module corresponding to a service of the UE; configuring, according to the function module corresponding to a service of the UE and a network topology, a function module for a target node; determining, according to the function module configured for the target node and the network topology, a first forwarding entry group required for data stream transmission between a source node and any node of the target node; and determining a second forwarding entry group required for data stream transmission between a gateway and any node of the target node.

    Sidelink Information Transmission Method, Communications Device, and Network Device

    公开(公告)号:US20210211246A1

    公开(公告)日:2021-07-08

    申请号:US17205644

    申请日:2021-03-18

    Abstract: A sidelink information transmission method, a communications device, and a network device, the method including sending, by a network device, first indication information to a device, the first indication information indicating a first resource that is a resource set used to transmit sidelink information, where the first indication information is used to obtain a correspondence satisfied by a time-domain resource and a frequency-domain resource of a resource that is in the first resource and that is used to transmit the sidelink control information, and sending, to the device, control information indicating a second resource belonging to the first resource, and having a third resource used to send the sidelink control information to a second communications device and satisfying the correspondence, and having a fourth resource used by the device to send the sidelink data to a second device based on the sidelink control information.

    GRANT-FREE TRANSMISSION METHOD, NETWORK DEVICE, AND TERMINAL DEVICE

    公开(公告)号:US20190223203A1

    公开(公告)日:2019-07-18

    申请号:US16365052

    申请日:2019-03-26

    Abstract: This application discloses a grant-free transmission method, a network device, and a terminal device. The method includes: detecting, by a network device, a pilot sequence used by a terminal device for uplink transmission; determining, by the network device, a pilot sequence index of the pilot sequence based on the pilot sequence and a correspondence between the pilot sequence and the pilot sequence index; and sending, by the network device, information about a feedback result of the uplink transmission to the terminal device based on the pilot sequence index.

    Data transmission method and communications device

    公开(公告)号:US10257846B2

    公开(公告)日:2019-04-09

    申请号:US15261565

    申请日:2016-09-09

    Abstract: The present invention relates to a data transmission method and a communications device. The communications device includes: a memory, a processor, and a communications interface. The memory is configured to store mapping information between a data flow identifier and a physical layer transmission technology identifier. The processor is configured to: determine a to-be-scheduled data flow; determine, from the mapping information and according to a data flow identifier of the data flow, a physical layer transmission technology identifier corresponding to the data flow; generate, according to the data flow, a transport block which is corresponding to the physical layer transmission technology identifier; generate wireless communication data by performing processing, according to a physical layer transmission technology corresponding to the physical layer transmission technology identifier, on a transport block corresponding to the physical layer transmission technology identifier; and send the wireless communication data to a receive end by using the communications interface.

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