Random Access Method, Device, and System
    21.
    发明申请

    公开(公告)号:US20200077451A1

    公开(公告)日:2020-03-05

    申请号:US16677304

    申请日:2019-11-07

    Abstract: Embodiments of the present invention disclose a random access method, a device, and a system, and relate to the field of communications technologies, to resolve a problem of how to implement network access when two or more uplink frequency bands exist in a 5G system. A specific solution is as follows: A terminal receives, from an access network device, random access configurations corresponding to at least two uplink frequency bands, and initiates random access based on at least one of the random access configurations corresponding to the at least two uplink frequency bands. The embodiments of the present invention are used for a random access process.

    Communication method and apparatus
    22.
    发明授权

    公开(公告)号:US12295042B2

    公开(公告)日:2025-05-06

    申请号:US17863150

    申请日:2022-07-12

    Inventor: Chunhua You

    Abstract: The disclosure provides communication methods and apparatuses. One example method includes that a terminal device sends a random access request to a network device, and the terminal device receives a random access response to the random access request that comprises first configuration information from a network device. The first indication information indicates not to perform channel access or the first indication information indicates that a channel access type is channel access without random back-off or channel access with random back-off with variable size of contention window. The terminal device sends an uplink message to the network device based on the first indication information, where the uplink message is carried on a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH).

    COMMUNICATION METHOD AND COMMUNICATION APPARATUS

    公开(公告)号:US20240323814A1

    公开(公告)日:2024-09-26

    申请号:US18673871

    申请日:2024-05-24

    CPC classification number: H04W48/12

    Abstract: This application provides a communication method and a communication apparatus. The method includes: receiving first DCI from a network device; and determining, based on the first DCI, that first data scheduled by the first DCI includes a first SIB 1, where the first SIB 1 includes information related to network access in a first operation mode. The first DCI includes first indication information, and the first indication information indicates that the first data includes the first SIB 1. Alternatively, one or more of the following information associated with the first DCI is different from that associated with second DCI: scrambling information, DCI format information, time domain or frequency domain resource information, the second DCI is used to schedule a second SIB 1, and the second SIB 1 includes information related to network access in a second operation mode.

    Communication method and apparatus, and computer storage medium

    公开(公告)号:US11778619B2

    公开(公告)日:2023-10-03

    申请号:US17197533

    申请日:2021-03-10

    CPC classification number: H04W72/21 H04W74/0833

    Abstract: Embodiments of this application provide a communication method and apparatus, and a computer storage medium, to reduce communication latency between a terminal and a base station, and improve a capability of adapting to a latency-sensitive scenario. The method provided in this application includes a terminal that receives at least one uplink configuration and at least one random access configuration from a network device. The uplink configuration is used to indicate a parameter for sending uplink data, and the random access configuration is used to indicate a parameter for sending a preamble. The at least one uplink configuration includes a first uplink configuration, the at least one random access configuration includes a first random access configuration, and there is a correspondence between the first uplink configuration and the first random access configuration.

    Uplink Transmission Method and Communications Apparatus

    公开(公告)号:US20210391959A1

    公开(公告)日:2021-12-16

    申请号:US17400477

    申请日:2021-08-12

    Abstract: An uplink transmission method and a communications apparatus, the method including when transmitting, in a subframe in which an autonomous uplink transmission resource is configured, uplink data by using a first hybrid automatic repeat request (HARQ) process, considering that a new data indicator (NDI) for the first HARQ process is toggled, where the first HARQ process is a HARQ process that can be used for autonomous uplink transmission, and before the subframe, there is no uplink grant for the first HARQ process delivered to a HARQ entity, and performing new uplink data transmission in the subframe by using the first HARQ process.

    TRANSMISSION METHOD AND COMMUNICATIONS APPARATUS

    公开(公告)号:US20210378007A1

    公开(公告)日:2021-12-02

    申请号:US17403649

    申请日:2021-08-16

    Abstract: This application provides a transmission method and a communications apparatus, to simplify LBT behavior before a terminal device can transmit a HARQ feedback, and reduce implementation complexity. The method includes: receiving first DCI, where the first DCI is used to indicate or activate a downlink transmission resource; receiving downlink data on the downlink transmission resource; receiving second DCI, where the second DCI is used to indicate an uplink transmission resource, and the uplink transmission resource is used to transmit feedback information for the downlink data; and sending the feedback information on the uplink transmission resource.

    Information transmission method and apparatus

    公开(公告)号:US11122523B2

    公开(公告)日:2021-09-14

    申请号:US16578994

    申请日:2019-09-23

    Abstract: Embodiments of the present invention provide an information transmission method, including: when a terminal device is in a power headroom report (PHR) triggering state, receiving, by the terminal device, a first indication from a network device, where the first indication is used to indicate a first uplink transmission resource of the terminal device, and the uplink transmission resource is used by the terminal device to perform uplink transmission with the network device; and keeping, by the terminal device, the power headroom report triggering state in a first time period, and canceling the power headroom report triggering state when the first time period expires, where the first time period is a second time period starting from a receiving time point of the first indication to a time domain end of the first uplink transmission resource indicated by the first indication.

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