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EP-4742773-A1 - LP-WUS MONITORING METHOD, AND TERMINAL AND NETWORK-SIDE DEVICE

EP4742773A1EP 4742773 A1EP4742773 A1EP 4742773A1EP-4742773-A1

Abstract

Embodiments of this application disclose an LP-WUS monitoring method, a terminal, and a network side device, and belong to the field of communication technologies. The LP-WUS monitoring method in the embodiments of this application includes: receiving, by a terminal, an LP-WUS configuration, where the LP-WUS configuration includes at least one LP-WUS resource; and monitoring, by the terminal, an LP-WUS on a target LP-WUS resource based on the LP-WUS configuration, where the target LP-WUS resource belongs to the at least one LP-WUS resource.

Inventors

  • LIU, XUANBING

Assignees

  • Vivo Mobile Communication Co., Ltd.

Dates

Publication Date
20260513
Application Date
20240703

Claims (20)

  1. A low-power wake-up signal LP-WUS monitoring method, comprising: receiving, by a terminal, an LP-WUS configuration, wherein the LP-WUS configuration comprises at least one LP-WUS resource; and monitoring, by the terminal, an LP-WUS on a target LP-WUS resource based on the LP-WUS configuration, wherein the target LP-WUS resource belongs to the at least one LP-WUS resource.
  2. The method according to claim 1, wherein the LP-WUS configuration further comprises at least one low-power synchronization signal LP-SS, and the method further comprises: monitoring, by the terminal, a target LP-SS based on the LP-WUS configuration, wherein the target LP-SS belongs to the at least one LP-SS.
  3. The method according to claim 2, wherein the LP-SS comprises a first LP-SS and a second LP-SS, wherein the first LP-SS comprises at least one of the following: a cell identifier, a system message indication, time information, and synchronization information, and the first LP-SS supports a measurement function; and the second LP-SS supports a measurement function.
  4. The method according to claim 2, wherein the method satisfies at least one of the following: the target LP-WUS resource and the target LP-SS occupy a same frequency domain position; the terminal monitors the LP-WUS and the target LP-SS in time division; and the target LP-SS is subjected to inter-carrier frequency hopping transmission in the target LP-WUS resource.
  5. The method according to any one of claims 1 to 4, wherein the LP-WUS configuration comprises a plurality of LP-WUS resources and one LP-SS, the terminal monitors the LP-WUS on the target LP-WUS resource and monitors the target LP-SS based on the LP-WUS configuration, and the target LP-SS is the one LP-SS; or the LP-WUS configuration comprises a plurality of LP-WUS resources and a plurality of LP-SSs, one LP-SS is in a same time domain range as at least one LP-WUS resource corresponding to the LP-SS, and the terminal monitors the LP-WUS on the target LP-WUS resource based on the LP-WUS configuration, and monitors a target LP-SS in a same time domain range as the target LP-WUS resource; or the LP-WUS configuration comprises a plurality of LP-WUS resources and a plurality of LP-SSs, one LP-SS is in a same frequency domain range as at least one LP-WUS resource corresponding to the LP-SS, and the terminal monitors the LP-WUS on the target LP-WUS resource based on the LP-WUS configuration, and monitors a target LP-SS in a same frequency domain range as the target LP-WUS resource.
  6. The method according to claim 5, wherein the method further comprises: determining, by the terminal, the target LP-WUS resource or the target LP-SS based on at least one of the following: at least one of the following of the target LP-WUS resource or the target LP-SS in the LP-WUS configuration: an identifier, time-frequency domain resource information, and a frequency; or a target rule, wherein the target rule is related to an identifier of the terminal.
  7. The method according to claim 6, wherein the identifier of the terminal comprises at least one of the following: an international mobile equipment identity IMEI, an international mobile subscriber identity IMSI, a 5G-SAE-temporary mobile subscriber identity 5G-S-TMSI, and a low-power wake-up signal identifier LP-WUS ID.
  8. The method according to any one of claims 1 to 7, wherein the LP-WUS configuration is transmitted by using a system message; or the LP-WUS configuration is transmitted by using a radio resource control RRC release message.
  9. The method according to any one of claims 1 to 8, wherein the method further comprises at least one of the following: performing, by the terminal, serving cell measurement or radio resource management RRM measurement by using a low-power communication module; performing, by the terminal, LP-WUS or LP-SS-based serving cell measurement; and performing, by the terminal, LP-WUS or LP-SS-based RRM measurement, wherein the RRM measurement comprises serving cell RRM measurement or neighboring cell RRM measurement.
  10. The method according to claim 9, wherein the method further comprises: considering a low-power low-mobility relaxed measurement criterion to be satisfied if a difference between a first serving cell receiving strength and a low-power reference serving cell receiving strength is less than or equal to a first threshold, wherein the first serving cell receiving strength is a serving cell receiving strength measured by using the low-power communication module.
  11. The method according to claim 10, wherein the method further comprises: setting, by the terminal, the low-power reference serving cell receiving strength to a current first serving cell receiving strength in a case that one of the following conditions is satisfied: after a new cell or area is selected or reselected; the first serving cell receiving strength is greater than the low-power reference serving cell receiving strength; duration for which the low-power low-mobility relaxed measurement criterion is not satisfied reaches duration of a fluctuation monitoring window of low-power measurement; after a main communication module-based relaxed measurement criterion is satisfied; or after performing of relaxed measurement is started, wherein the first serving cell receiving strength is the serving cell receiving strength measured by using the low-power communication module.
  12. The method according to claim 9, wherein the method further comprises: considering a relaxed measurement criterion of a low-power not-at-cell-edge terminal to be satisfied if a first serving cell receiving strength is greater than a low-power serving cell receiving strength threshold, wherein the first serving cell receiving strength is a serving cell receiving strength measured by using the low-power communication module.
  13. The method according to any one of claims 9 to 12, wherein the method further comprises: selecting, by the terminal, to perform a target relaxed measurement operation in a case that at least one of the following conditions is satisfied: an indication instructing to relax, based on measurement of the low-power communication module, measurement of the main communication module is configured; information instructing the terminal to perform low-mobility relaxed measurement evaluation based on measurement of the low-power communication module is configured; the low-power low-mobility relaxed measurement criterion is satisfied; information instructing the terminal to perform not-at-cell-edge relaxed measurement evaluation based on measurement of the low-power communication module is configured; a low-power not-at-cell-edge relaxed measurement criterion is satisfied; and duration for which the terminal already performs LP-WUS or LP-SS-based serving cell measurement or neighboring cell measurement reaches at least the duration of the fluctuation monitoring window of the low-power measurement.
  14. The method according to claim 13, wherein the target relaxed measurement operation comprises at least one of the following: relaxing serving cell measurement performed by using the main communication module; relaxing RRM measurement performed by using the main communication module; relaxing serving cell measurement performed by using the low-power communication module; relaxing RRM measurement performed by using the low-power communication module; performing RRM measurement by using the low-power communication module; and during measurement evaluation performed by the low-power communication module, the main communication module being in a sleep or closed state.
  15. The method according to any one of claims 9 to 14, wherein the method further comprises: receiving, by the terminal, a relaxed measurement configuration, wherein the relaxed measurement configuration comprises at least one of the following: information instructing to relax, based on measurement of the low-power communication module, measurement of the main communication module; information instructing the terminal to perform low-mobility relaxed measurement evaluation based on measurement of the low-power communication module; information instructing the terminal to perform not-at-cell-edge relaxed measurement evaluation based on measurement of the low-power communication module; a first threshold, wherein the first threshold is used for representing a threshold of a change of a received signal strength of a serving cell measured by the low-power communication module defined for relaxed measurement; a low-power serving cell receiving strength threshold, wherein the low-power serving cell receiving strength threshold is used for representing a threshold of the received signal strength of the serving cell measured by the low-power communication module defined for relaxed measurement; and the duration of the fluctuation monitoring window of the low-power measurement, wherein the duration of the fluctuation monitoring window of the low-power measurement is used for representing relaxed measurement evaluation duration of fluctuation of the received signal strength of the serving cell measured by the low-power communication module.
  16. The method according to any one of claims 1 to 8, wherein the method further comprises: performing, by the terminal, cell selection or reselection based on measurement of the low-power communication module.
  17. The method according to claim 16, wherein the method further comprises: camping, by the terminal, on a current cell or area in a case that at least one of the following conditions is satisfied: a first serving cell receiving strength is greater than a second threshold; and cell selection based on measurement of the low-power communication module is configured, wherein the first serving cell receiving strength is a serving cell receiving strength measured by using the low-power communication module.
  18. The method according to claim 16, wherein the method further comprises: performing, by the terminal, a target operation in a case that at least one of the following conditions is satisfied: a first serving cell receiving strength is less than a third threshold; and an indication of cell-reselection evaluation based on measurement of the low-power communication module is configured, wherein the first serving cell receiving strength is a serving cell receiving strength measured by using the low-power communication module.
  19. The method according to claim 18, wherein the target operation comprises at least one of the following: starting RRM measurement based on the low-power communication module; serving cell measurement or RRM measurement based on a main communication module; and an evaluation process of cell reselection.
  20. The method according to claim 16, wherein the performing, by the terminal, cell selection or reselection based on measurement of the low-power communication module comprises: calculating, by the terminal, an S value based on measurement of the low-power communication module; and the method further comprises: receiving, by the terminal, a target configuration, wherein the target configuration comprises a low-power offset, and the low-power offset value is used for calculating the S value.

Description

This application claims priority to Chinese Patent Application No. 202310818401.7, filed with the China National Intellectual Property Administration on July 4, 2023 and entitled "LP-WUS MONITORING METHOD, TERMINAL, AND NETWORK SIDE DEVICE", which is incorporated herein by reference in its entirety. TECHNICAL FIELD This application relates to the field of communication technologies, and specifically, relates to a low-power wake-up signal (Low-Lower Wake-Up Signaling, LP-WUS) monitoring method, a terminal, and a network side device. BACKGROUND A terminal usually includes a main communication module and a low-power communication module (also referred to as a low-power wake-up receiving module, a low-power receiver, and the like). The main communication module is mainly configured to transmit and receive mobile communication data, and the low-power communication module is mainly configured to receive an LP-WUS. LP-WUSs are usually some simple on-off keying (on-off keying) signals. The low-power communication module can learn a wake-up notification through simple energy detection and subsequent possible processes such as sequence detection and recognition. The main communication module may enter a sleep or closed state to maintain a low power consumption level while the terminal enables the low-power communication module to receive the LP-WUS, thereby achieving power consumption saving by receiving the LP-WUS. However, an LP-WUS monitoring solution is not provided in the related art, and consequently, the terminal cannot save power by monitoring the LP-WUS. SUMMARY Embodiments of this application provide an LP-WUS monitoring method, a terminal, and a network side device, to resolve a problem that the terminal cannot monitor an LP-WUS. According to a first aspect, an LP-WUS monitoring method is provided, including: receiving, by a terminal, an LP-WUS configuration, where the LP-WUS configuration includes at least one LP-WUS resource; and monitoring, by the terminal, an LP-WUS on a target LP-WUS resource based on the LP-WUS configuration, where the target LP-WUS resource belongs to the at least one LP-WUS resource. According to a second aspect, an LP-WUS monitoring method is provided, including: sending, by a network side device, an LP-WUS configuration, where the LP-WUS configuration includes at least one LP-WUS resource, the LP-WUS configuration is used by a terminal to monitor an LP-WUS on a target LP-WUS resource, and the target LP-WUS resource belongs to the at least one LP-WUS resource. According to a third aspect, an LP-WUS monitoring apparatus is provided, including: a receiving module, configured to receive an LP-WUS configuration, where the LP-WUS configuration includes at least one LP-WUS resource; and the receiving module is further configured to monitor an LP-WUS on a target LP-WUS resource based on the LP-WUS configuration, where the target LP-WUS resource belongs to the at least one LP-WUS resource. According to a fourth aspect, an LP-WUS monitoring apparatus is provided, including: a sending module, configured to send an LP-WUS configuration, where the LP-WUS configuration includes at least one LP-WUS resource, the LP-WUS configuration is used by a terminal to monitor an LP-WUS on a target LP-WUS resource, and the target LP-WUS resource belongs to the at least one LP-WUS resource. According to a fifth aspect, a terminal is provided, where the terminal includes a processor and a memory, the memory stores a program or instructions runnable on the processor, and the program or instructions, when executed by the processor, implement the steps of the method according to the first aspect. According to a sixth aspect, a terminal is provided, including a processor and a communication interface. The communication interface is configured to receive an LP-WUS configuration, where the LP-WUS configuration includes at least one LP-WUS resource; and monitor an LP-WUS on a target LP-WUS resource based on the LP-WUS configuration, where the target LP-WUS resource belongs to the at least one LP-WUS resource. According to a seventh aspect, a network side device is provided, where the network side device includes a processor and a memory, the memory stores a program or instructions runnable on the processor, and the program or the instructions, when executed by the processor, implement the steps of the method according to the second aspect. According to an eighth aspect, a network side device is provided, including a processor and a communication interface, where the communication interface is configured to send an LP-WUS configuration, where the LP-WUS configuration includes at least one LP-WUS resource, the LP-WUS configuration is used by a terminal to monitor an LP-WUS on a target LP-WUS resource, and the target LP-WUS resource belongs to the at least one LP-WUS resource. According to a ninth aspect, a readable storage medium is provided, where the readable storage medium stores a program or instructions, and the