CN-122002480-A - Method performed by user equipment and user equipment

CN122002480ACN 122002480 ACN122002480 ACN 122002480ACN-122002480-A

Abstract

The disclosure provides a method performed by User Equipment (UE) and the UE. The method comprises the steps that the UE reports wake-up delay and priority thereof, a plurality of offset values are determined from a plurality of offset parameters configured by a system, the distance from an opportunity LO of a low-power wake-up signal LP-WUS to a paging opportunity PO is determined according to a reference point on a determined paging cycle and the plurality of offset values, one offset value and LO associated with the offset value are determined in the plurality of offset values according to the distance, the wake-up delay and the priority thereof, the UE determines the LP-WUS detection opportunity LMO of the LO in the determined LO, and at least one of a beam sequence number, a repetition sequence number and a LP-WUS sequence number used by the LMO, and the UE detects the LP-WUS on the determined LMO. By the method, the system overhead is minimized, and meanwhile, the UE can correctly detect the LP-WUS, so that the power consumption of the UE is saved, and the user experience is improved.

Inventors

MA XIAOJUN
LIU RENMAO
LUO CHAO

Assignees

夏普株式会社

Dates

Publication Date: 20260508
Application Date: 20241107

Claims (7)

1. A method performed by a user equipment, UE, comprising: The UE reports wake-up delay and priority thereof; The UE determines a plurality of offset values from a plurality of offset parameters configured by a system, determines the distance from the opportunity LO of a low-power consumption wake-up signal LP-WUS to a paging opportunity PO according to the determined reference point on a paging cycle and the plurality of offset values, and determines one offset value and the LO associated with the offset value in the plurality of offset values according to the distance, the wake-up delay and the priority thereof; the UE determines the LP-WUS detection opportunity LMO of the LO in the determined LO and at least one of a beam sequence number, a repetition sequence number and an LP-WUS sequence number used by the LMO; the UE detects LP-WUS on the determined LMO.
2. The method of claim 1, wherein the method of determining one of the plurality of offset values and the LO associated with that offset value based on the distance and the wake-up delay and its priority further comprises: The UE uses wake-up delays to compare in order of priority from high to low with LO-to-PO distances associated with a plurality of offset values, respectively, in order from small to large, selects a first offset value satisfying a distance not less than the wake-up delay as the selected offset value, and determines the LO associated with the offset value as the LO detected by the UE.
3. The method of claim 2, wherein if the UE does not determine an offset value according to the method, the UE performs one of the following methods according to an indication of the network: -determining the associated LO using the largest offset value, and if the UE detects information on the LO indicating that the UE is PO detected, the UE detects on the PO after the LO that the first distance from the LO meets the highest priority wake-up delay; The UE does not detect LO.
4. The method of claim 1, wherein the UE determining a plurality of offset values from a plurality of offset parameters of a system configuration comprises: The difference between the plurality of offset values is an integer multiple of a unit length, the unit length being one of: -an interval length of adjacent paging frames; The length of the paging cycle configured in the system information block SIB.
5. The method of claim 1, wherein the UE determines an LP-WUS detection opportunity, LMO, in the determined LO and at least one of a beam number, a repetition number, an LP-WUS number used by LMO further comprises: The beam numbers used by the LMOs are determined based on the quasi co-located QCL parameters of the LMOs, and a number of LMOs are determined for each beam number to be used, and at least one of the repetition number, LP-WUS number, used by the LMOs, based on a default order or an indication of a higher layer.
6. The method of claim 1, wherein the UE detecting LP-WUS on the determined LMO further comprises: the UE determines whether to detect LMO of the partial LP-WUS sequence number according to an indication of the network, according to one of: -a UE using a higher layer configured packet sequence number; -a UE using a higher layer configured packet sequence number and the higher layer instructs the LP-WUS of the UE to transmit preferentially.
7. A user equipment, comprising: processor, and A memory in which instructions are stored, Wherein the instructions, when executed by the processor, perform the method of any one of claims 1 to 6.

Description

Method performed by user equipment and user equipment Technical Field The present disclosure relates to the field of wireless communication technologies, and in particular, to a method for determining downlink resources performed by a user equipment, related actions thereof, and a corresponding user equipment. Background This section introduction may facilitate a better understanding of various aspects of the disclosure. The statements in this section are thus to be read in this light, and not as admissions of what is or is not prior art. In the 5G system, besides delay, reliability, availability, etc., the energy efficiency of the user equipment is also one of the key elements of the 5G. Typically, the user equipment consumes tens of milliwatts in the RRC idle or inactive state and hundreds of milliwatts in the RRC connected state. Depending on the application scenario, the user device may need to be charged weekly or daily. Therefore, designs that further reduce user equipment power consumption, extend battery life are necessary to improve energy efficiency and achieve a better user experience. For devices that use miniature batteries or are inconvenient to charge, such as sensors, automatic controllers, wearable devices, etc., the time for standby may be 1-2 weeks or longer, which is more critical to improve their energy use efficiency. The user equipment may typically save power in a Discontinuous Reception (DRX) manner, and to ensure connectivity, the user equipment needs to wake up periodically at each DRX cycle to detect the control channel. The user equipment periodically has power consumption even when there is no data transmission for the user equipment. If the user equipment can wake up only when there is a traffic transmission demand, the power consumption of the user equipment will be greatly reduced. Thus, the user equipment may configure a low power auxiliary receiver for detecting the wake-up signal (LP-WUS) transmitted by the base station. The primary receiver of the user equipment may remain in a lower power consumption state (e.g., sleep state) until the low power consumption receiver receives the LP-WUS signal and wakes up the primary receiver for corresponding data processing. This allows the service processing requirements of the user equipment to be met with less power consumption. To achieve such a design objective, there are several problems to be solved in the system, such as how to find an LO based on the PO of the UE and several offset parameters configured by the base station when the idle UE searches for the LP-WUS in the time domain, how to determine the LMO in the LO, the beam parameters used by an LMO, the repetition number, and the LP-WUS number. Disclosure of Invention In order to solve at least a part of the above problems, the present disclosure provides a method performed by a user equipment and the user equipment, so that the UE can find an LO according to LP-WUS resource parameters and LO parameters configured by a base station, and determine beam parameters, repetition sequence numbers, LP-WUS sequence numbers, and the like used by LMOs and LMOs in the LO, and the UE can correctly detect the LP-WUS while minimizing overhead, thereby saving UE power consumption and improving user experience. According to the present disclosure, there is provided a method performed by a user equipment, UE, comprising: The method comprises the steps of reporting a wake-up delay and priority thereof by UE, determining a plurality of offset values from a plurality of offset parameters configured by a system by the UE, determining the distance from an opportunity LO of a low-power wake-up signal LP-WUS to a paging opportunity PO according to a reference point on a determined paging cycle and the plurality of offset values, determining an offset value and LO associated with the offset value in the plurality of offset values according to the distance, the wake-up delay and priority thereof, determining an LP-WUS detection opportunity LMO of the LO in the determined LO by the UE, and at least one of a beam sequence number, a repetition sequence number and an LP-WUS sequence number used by the LMO, and detecting the LP-WUS on the determined LMO by the UE. According to the method of one aspect of the invention, the method for determining one offset value and the LO associated with the offset value according to the distance, the wake-up delay and the priority thereof further comprises the steps that the UE compares the wake-up delay with the LO-to-PO distances respectively associated with the offset values according to the plurality of offset values from high to low in order of priority, the UE selects the first offset value which meets the distance not smaller than the wake-up delay as the selected offset value, and determines the LO related to the offset value as the LO detected by the UE. According to the method of one aspect of the present invention, if the UE does not determine an offset va