Wireless communication method and apparatus, device, and storage medium
AssigneeBeijing Xiaomi Mobile Software Co., Ltd.
InventorYang Liu
Life of this patent
Estimating the term…
Abstract
A method for wireless communication is performed by a satellite and includes: sending configuration information of a tracking reference signal (TRS) of at least one beam to a terminal; wherein the configuration information is at least configured to indicate a first time domain position of the TRS sent by the satellite; the TRS is used for synchronization between the terminal and the satellite; and the first time domain position is configured for the terminal to determine a wake-up time of the terminal in a ratio resource control (RRC) idle state.
Claims13
A method for wireless communication, performed by a satellite and comprising:
- in response to determining that a terminal is in a radio resource control (RRC) connected state, sending configuration information of a tracking reference signal (TRS) of at least one beam to the terminal, wherein the configuration information is at least configured to indicate a first time domain position of the TRS sent by the satellite, the TRS is used for adjusting a synchronization parameter between the terminal and the satellite, and the first time domain position is configured for the terminal to determine a wake-up time of the terminal in a radio resource control (RRC) idle state,
- wherein:
- in response to the terminal determining that the TRS carries identification information of the terminal, the terminal adjusts the synchronization parameter;
- in response to the terminal determining that the TRS does not carry the identification information of the terminal, the terminal ignores the TRS;
- in response to a delay jitter of the wireless communication in a network being greater than a set threshold, a number N of symbols between the first time domain position and the wake-up time is set to be greater than a value a, in response to the delay jitter of the wireless communication in the network being less than the set threshold, the number N of symbols between the first time domain position and the wake-up time is set to be less than a value b, wherein a>b;
- the configuration information of a tracking reference signal indicates a first beam and a second beam, the satellite transmits a plurality of TRS on the first beam, the UE receives PDCCH on the first beam and the second beam;
- the first time domain position is located before a second time domain position where the satellite sends paging downlink control information, and the paging downlink control information is configured to indicate a time-frequency domain resource for the satellite to send a paging message;
- and
- the TRS contains grouping information of the terminal, and the grouping information is configured to indicate a terminal monitoring the paging downlink control information.
A method for wireless communication, performed by a terminal and comprising:
- receiving configuration information of at least one tracking reference signal (TRS) of at least one beam sent by a satellite in response to determining that the terminal is in a radio resource control (RRC) connected state, wherein the configuration information is at least configured to indicate a first time domain position of the TRS sent by the satellite, the TRS is used for adjusting a synchronization parameter between the terminal and the satellite, and the first time domain position is configured for the terminal to determine a wake-up time of the terminal in a radio resource control (RRC) idle state;
- in response to the terminal determining that the TRS carries identification information of the terminal, adjusting the synchronization parameter;
- and
- in response to the terminal determining that the TRS does not carry the identification information of the terminal, ignoring the TRS,
- wherein:
- in response to a delay jitter of the wireless communication in a network being greater than a set threshold, a number N of symbols between the first time domain position and the wake-up time is set to be greater than a value a, in response to the delay jitter of the wireless communication in the network being less than the set threshold, the number N of symbols between the first time domain position and the wake-up time is set to be less than a value b, wherein a>b;
- the configuration information of a tracking reference signal indicates a first beam and a second beam, the satellite transmits a plurality of TRS on the first beam, the UE receives PDCCH on the first beam and the second beam;
- the first time domain position is located before a second time domain position where the satellite sends paging downlink control information, and the paging downlink control information is configured to indicate a time-frequency domain resource for the satellite to send a paging message;
- and
- the TRS contains grouping information of the terminal, and the method further comprises:
- determining to monitor the paging downlink control information based on indication of the group information.
A terminal, comprising:
- an antenna;
- a memory;
- and
- a processor connected with the antenna and the memory,
- wherein the processor is configured to:
- receive configuration information of at least one tracking reference signal (TRS) of at least one beam sent by a satellite in response to determining that the terminal is in a radio resource control (RRC) connected state, wherein the configuration information is at least configured to indicate a first time domain position of the TRS sent by the satellite, the TRS is used for adjusting a synchronization parameter between the terminal and the satellite, and the first time domain position is configured for the terminal to determine a wake-up time of the terminal in a ratio resource control (RRC) idle state;
- in response to the terminal determining that the TRS carries identification information of the terminal, adjust the synchronization parameter;
- and
- in response to the terminal determining that the TRS does not carry the identification information of the terminal, ignore the TRS,
- wherein:
- in response to a delay jitter of the wireless communication in a network being greater than a set threshold, a number N of symbols between the first time domain position and the wake-up time is set to be greater than a value a, in response to the delay jitter of the wireless communication in the network being less than the set threshold, the number N of symbols between the first time domain position and the wake-up time is set to be less than a value b, wherein a>b;
- the configuration information of a tracking reference signal indicates a first beam and a second beam, the satellite transmits a plurality of TRS on the first beam, the UE receives PDCCH on the first beam and the second beam;
- the first time domain position is located before a second time domain position where the satellite sends paging downlink control information, and the paging downlink control information is configured to indicate a time-frequency domain resource for the satellite to send a paging message;
- and
- the TRS contains grouping information of the terminal, and the processor is further configured to:
- determine to monitor the paging downlink control information based on indication of the group information.
Dependencies are inferred from the claim text.