Data transmission method and terminal device

    公开(公告)号:US11930523B2

    公开(公告)日:2024-03-12

    申请号:US17286386

    申请日:2019-10-17

    CPC classification number: H04W72/543 H04W72/1268 H04W72/542

    Abstract: This application provides a data transmission method and a terminal device, to reduce a data transmission latency and improve data transmission reliability. The method includes: obtaining, by a terminal device, a grant-free GF resource configured by a base station; obtaining, by the terminal device, current channel quality; and if the current channel quality is first channel quality, transmitting, by the terminal device, to-be-transmitted data by using the GF resource, or transmitting, by the terminal device, the to-be-transmitted data by using a GB resource, where the first channel quality falls within a first range; or if the current channel quality is second channel quality, skipping, by the terminal device, transmitting to-be-transmitted data by using the GF resource, where the second channel quality falls within a second range; where the first channel quality is better than the second channel quality, and the first range is different from the second range.

    POWER HEADROOM REPORTING METHOD FOR USER EQUIPMENT, MEDIUM, AND USER EQUIPMENT

    公开(公告)号:US20230397126A1

    公开(公告)日:2023-12-07

    申请号:US18249060

    申请日:2021-10-09

    CPC classification number: H04W52/365 H04W52/146

    Abstract: Embodiments of this application provide a power headroom reporting method for user equipment, a medium, and user equipment. The reporting method includes: The user equipment has at least a first uplink transmit antenna and a second uplink transmit antenna, the first uplink transmit antenna has a first P_MPR value, and the second uplink transmit antenna has a second P_MPR value; and when the user equipment performs uplink data transmission in a single-stream manner, the user equipment sends a first PHR value to a network side, where the first PHR value is obtained based on at least a third power management maximum power reduction P_MPR value, and the third power management maximum power reduction P_MPR value is between the first P_MPR value and the second P_MPR value. According to the power headroom reporting method in this application, an actual maximum transmit power that is obtained through calculation and that is of the user equipment is more accurate, and further, the user equipment can report the power headroom more accurately.

    Random access method and apparatus

    公开(公告)号:US11490415B2

    公开(公告)日:2022-11-01

    申请号:US17256506

    申请日:2018-11-28

    Abstract: This application relates to the wireless communications field, and discloses a random access method and apparatus, to resolve a problem of how a terminal device selects an uplink to perform random access. The method includes: selecting, by a terminal device, a first uplink from at least two preconfigured uplinks to perform random access; and selecting, by the terminal device when random access performed by using the first uplink fails, a second uplink from the at least two uplinks to perform random access, where the at least two uplinks are communications links between the terminal device and a first network device, the first network device and the terminal device are located in a same cell, the first uplink is a normal uplink NUL, and the second uplink is a supplementary uplink SUL. In this way, the terminal device selects an uplink to perform random access.

    Power adjustment method, terminal, and storage medium

    公开(公告)号:US11412463B2

    公开(公告)日:2022-08-09

    申请号:US17259150

    申请日:2019-07-09

    Abstract: Embodiments of the present invention disclose a power adjustment method, a terminal, and a storage medium. The method includes: sending, by a terminal, an uplink resource request by using a power of a; if the terminal receives no resource allocation signaling within a predetermined time after the uplink resource request is sent, sending, by the terminal, the uplink resource request again by using a power of b1, wherein b1 is greater than a. Embodiments of the present invention may improve communication efficiency.

    METHOD FOR CONTROLLING OUTPUT POWER OF ANTENNA, MEDIUM, AND DEVICE

    公开(公告)号:US20230345387A1

    公开(公告)日:2023-10-26

    申请号:US18002039

    申请日:2021-06-11

    CPC classification number: H04W52/367 H04W52/32

    Abstract: This application provides example methods for controlling an output power of an antenna for user equipment. One example method includes, during a sounding reference signal (SRS) transmission period, transmitting, by a first antenna of at least one antenna of the user equipment, a first SRS signal to a base station at a first SRS output power, where the first SRS output power is equal to a maximum output power (Pcmax) of the first antenna. During the SRS period, a non-SRS signal is transmitted to the base station at a non-SRS output power, where the non-SRS output power is less than a difference between the maximum output power of the first antenna and a maximum output power reduction of the first antenna, and the maximum output power reduction of the first antenna is set to meet an electromagnetic power density exposure requirement of the first antenna.

    POWER ADJUSTMENT METHOD, TERMINAL, AND STORAGE MEDIUM

    公开(公告)号:US20210176718A1

    公开(公告)日:2021-06-10

    申请号:US17259150

    申请日:2019-07-09

    Abstract: Embodiments of the present invention disclose a power adjustment method, a terminal, and a storage medium. The method includes: sending, by a terminal, an uplink resource request by using a power of a; if the terminal receives no resource allocation signaling within a predetermined time after the uplink resource request is sent, sending, by the terminal, the uplink resource request again by using a power of b1, wherein b1 is greater than a. Embodiments of the present invention may improve communication efficiency.

    Communication method and terminal device

    公开(公告)号:US12185260B2

    公开(公告)日:2024-12-31

    申请号:US17789470

    申请日:2020-10-28

    Abstract: This application provides a communication method in a dual-connectivity mode. In the communication method, maximum transmit power used by a terminal device to send a message corresponding to a main network protocol in a semi-persistent power sharing mode is maximum transmit power 2, maximum transmit power used by the terminal device to send a message corresponding to a secondary network protocol is maximum transmit power 3, the maximum transmit power 2 is less than theoretical maximum transmit power corresponding to the main network protocol, and the maximum transmit power 3 is greater than the theoretical maximum transmit power corresponding to the main network protocol.

    UPLINK RESOURCE PRE-APPLICATION METHOD AND RELATED DEVICE

    公开(公告)号:US20240064731A1

    公开(公告)日:2024-02-22

    申请号:US18260253

    申请日:2021-12-09

    CPC classification number: H04W72/1268

    Abstract: Embodiments of this application provide an uplink resource pre-application method and a related device. An electronic device may predict encoding duration of a to-be-sent data packet in an application (APP), determine an encoding completion moment of the to-be-sent data packet, and send an uplink scheduling request to a network device before the encoding completion moment of the to-be-sent data packet, to apply for an uplink resource for the to-be-sent data packet in advance. In this way, a latency of sending uplink data by the electronic device may be reduced, and power consumption of the electronic device may be reduced.

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