CN-122002478-A - PDCCH monitoring method based on LP-WUS, and configuration method and device of monitoring opportunity of LP-WUS

Abstract

The application discloses a PDCCH monitoring method based on an LP-WUS, and a configuration method and a device of monitoring opportunities of the LP-WUS, belonging to the field of communication. Under the condition that the terminal monitors the LP-WUS at the monitoring time of the LP-WUS, the terminal starts a first timer or a second timer according to the association relation between the monitoring time and the C-DRX period and monitors the PDCCH; wherein the first timer is a C-DRX timer and the second timer is another timer different from the C-DRX timer.

Inventors

• Ying Zuolong
• LI DONGRU
• QU XIN

Assignees

• 维沃移动通信有限公司

Dates

Publication Date

20260508

Application Date

20241107

Claims (20)

1. 1. A PDCCH monitoring method based on LP-WUS, comprising: under the condition that a terminal monitors the low power consumption wake-up signal LP-WUS at the monitoring time of the LP-WUS, the terminal starts a first timer or a second timer according to the association relation between the monitoring time and the discontinuous reception (C-DRX) period in a connection state and monitors a Physical Downlink Control Channel (PDCCH); the first timer is a C-DRX timer, and the second timer is other timers different from the C-DRX timer.
2. 2. The method of claim 1, wherein starting the first timer or the second timer and listening to the physical downlink control channel PDCCH according to the association between the listening occasion and the discontinuous reception C-DRX cycle in the connected state when the LP-WUS is listened to, comprises: If the starting time of the monitoring time and the C-DRX period is smaller than or equal to a first offset value or the ending time of the monitoring time and the C-DRX period is larger than or equal to a second offset value, starting the first timer, and monitoring the PDCCH within a first monitoring duration of the first timer; and if the starting time of the monitoring time and the C-DRX period is larger than the first offset value or the ending time of the monitoring time and the C-DRX period is smaller than the second offset value, starting the second timer, and monitoring the PDCCH within the second monitoring time of the second timer.
3. 3. A method according to claim 1 or 2, characterized in that the listening occasion is determined by the listening period of the LP-WUS, which is agreed upon by the network side device configuration or protocol.
4. 4. A method according to claim 2 or 3, characterized in that after the LP-WUS is monitored at the listening occasion and the first timer or the second timer is started, the terminal performs one of the following ways if there is an overlap between the first listening period or the second listening period and the next listening occasion: stopping listening to the LP-WUS for the next listening occasion; monitoring the LP-WUS in a portion of the next monitoring opportunity, the portion of the next monitoring opportunity not overlapping with the current first monitoring duration or the second monitoring duration; Continuing to listen to the LP-WUS for all listening opportunities of the next listening opportunity.
5. 5. The method of claim 1, wherein starting the first timer or the second timer and listening to the physical downlink control channel PDCCH according to the association between the listening occasion and the discontinuous reception C-DRX cycle in the connected state when the LP-WUS is listened to comprises: the listening occasions include a first listening occasion corresponding to the first timer and a second listening occasion corresponding to the second timer; and if the LP-WUS is monitored in the first monitoring time, starting the first timer, monitoring the PDCCH in the first monitoring time length of the first timer, and if the LP-WUS is monitored in the second monitoring time length, starting the second timer, and monitoring the PDCCH in the second monitoring time length of the second timer.
6. 6. The method of claim 5, wherein if there is overlap between the first listening duration and the second listening occasion after the first listening occasion listens to the LP-WUS and starts the first timer, the terminal performs one of: stopping listening to the LP-WUS within a target second listening occasion, the target second listening occasion being a second listening occasion overlapping the first listening duration; After the first monitoring duration is over, monitoring the LP-WUS in a part of a second monitoring occasion of a target second monitoring occasion, wherein the target second monitoring occasion is a second monitoring occasion overlapping with the first monitoring duration, and the part of the second monitoring occasion is a part of monitoring occasions which are not overlapping with the first monitoring duration in the target second monitoring occasion; Continuing to monitor the LP-WUS for all of a target second monitoring opportunity, the target second monitoring opportunity being a second monitoring opportunity that overlaps with the first monitoring duration.
7. 7. The method of claim 5, wherein if there is overlap between the second listening duration and the first listening occasion after the second listening occasion listens to the LP-WUS and starts the second timer, the terminal performs one of: Stopping listening to the LP-WUS within a target first listening occasion, the target first listening occasion being a first listening occasion overlapping the second listening duration; After the second monitoring duration is over, monitoring the LP-WUS in a part of first monitoring occasions of a target first monitoring occasion, wherein the target first monitoring occasion is a first monitoring occasion overlapped with the second monitoring duration, and the part of first monitoring occasion is a part of monitoring occasions which are not overlapped with the second monitoring duration in the target first monitoring occasion; continuing to monitor the LP-WUS for all of a target first monitoring opportunity, the target first monitoring opportunity being a first monitoring opportunity that overlaps with the second monitoring duration.
8. 8. The method of claim 5, wherein the listening occasion of the PDCCH is determined based on priorities of the first listening occasion and the second listening occasion if there is overlap of the first listening occasion and the second listening occasion.
9. 9. The method of claim 8, wherein if the priority of the first listening occasion is higher than the priority of the second listening occasion, starting the first timer and listening to the PDCCH for the first listening duration of the first timer; And if the priority of the second monitoring opportunity is higher than that of the first monitoring opportunity, starting the second timer, and monitoring the PDCCH in the second monitoring duration of the second timer.
10. 10. The method of claim 9, wherein the priorities of the first and second listening occasions are determined or agreed upon by the network side device indication.
11. 11. The method of any of claims 5-10, wherein a first listening period is the same as the C-DRX period, or wherein a starting time of the first listening occasion and the C-DRX period is less than or equal to a first offset value, or wherein an ending time of the first listening occasion and the C-DRX period is greater than or equal to a second offset value.
12. 12. The method according to any of claims 5-10, wherein a second listening period is different from the C-DRX period, or wherein a start time of the second listening occasion and the C-DRX period is greater than or equal to a third offset value, or wherein an end time of the second listening occasion and the C-DRX period is less than or equal to a fourth offset value.
13. 13. The method according to any of claims 2-4, 11, 12, wherein the first offset value or the second offset value is related to a wake-up delay of the terminal, wherein no data transmission and/or reception is performed within the wake-up delay.
14. 14. The method of claim 13, wherein the first offset value is a first preset value if the terminal is in a deep sleep state, a second preset value if the terminal is in a light sleep state, a third preset value if the terminal is in a micro sleep state, and the first preset value > the second preset value > the third preset value.
15. 15. The method according to any of claims 2-4, 11, 12, wherein the first offset value or the second offset value is related to the C-DRX cycle, or wherein the first offset value or the second offset value is a value preconfigured or agreed by the network side device.
16. 16. The method of claim 12, wherein the third offset value or the fourth offset value is a value related to the C-DRX cycle, or wherein the third offset value or the fourth offset value is a value preconfigured or agreed by the network side device, and wherein the third offset value or the fourth offset value is related to a wake-up delay of the terminal.
17. 17. The method according to any of claims 1-16, wherein the terminal sends a recommended time interval to a network side device before listening for the LP-WUS, wherein the time interval comprises at least one of a first offset value, a second offset value, a third offset value and a fourth offset value, and wherein the time interval is related to a wake-up delay of the terminal.
18. 18. The method according to claim 17, characterized in that the time interval is carried in terminal assistance information, UAI.
19. 19. A method of configuring a listening occasion of an LP-WUS, the method comprising: The network side equipment configures the terminal with the monitoring time for the terminal to monitor the LP-WUS, wherein the monitoring time and the C-DRX period have an association relation, and the association relation is used for starting a first timer or a second timer.
20. 20. The method of claim 19, wherein the listening occasion has an association with a C-DRX cycle, comprising: a first offset value exists between the listening occasion and the starting moment of the C-DRX cycle, or a second offset value exists between the listening occasion and the ending moment of the C-DRX cycle; Wherein the listening occasion is related to a wake-up delay of the terminal, or the listening occasion is related to a recommended time interval reported by the terminal.

Description

PDCCH monitoring method based on LP-WUS, and configuration method and device of monitoring opportunity of LP-WUS Technical Field The application belongs to the technical field of communication, and particularly relates to a PDCCH monitoring method based on an LP-WUS, and a configuration method and a device of monitoring opportunities of the LP-WUS. Background A User Equipment (UE) needs to monitor a PDCCH (Physical Downlink Control Channel ) to determine whether there is information from a serving cell, but if the PDCCH is continuously monitored, it is quite power-consuming and unnecessary, because the UE does not interact with the network side at all times. The C-DRX (Connected Discontinuous Reception, discontinuous reception in connected state) mechanism can make the user terminal periodically enter sleep state without monitoring PDCCH (Physical Downlink Control Channel ), and wake up from sleep state when monitoring PDCCH, thereby achieving the purpose of saving electricity. The wake-up time for monitoring the PDCCH under the C-DRX mechanism at least includes DRX-onDuration (whether the UE is monitoring the PDCCH or not), DRX-Inactivity (whether the UE monitors the PDCCH and is receiving downlink data), and the like. In the current standard protocol discussion, there is a way to combine LP-WUS interception with the C-DRX mechanism to further determine when to intercept PDCCH, the first way is to configure LP-WUS interception to trigger the wake-up time in the C-DRX mechanism to implement PDCCH interception, and the second way is to configure LP-WUS interception outside the wake-up time of the C-DRX mechanism to implement PDCCH interception, but how to perform PDCCH interception is a technical problem to be solved if both LP-WUS interception are configured in the user terminal. Disclosure of Invention The embodiment of the application provides a PDCCH monitoring method based on an LP-WUS, and a configuration method and a device of monitoring opportunities of the LP-WUS, which can solve the problem of how to save power consumption and reduce time delay during PDCCH monitoring. In a first aspect, a PDCCH monitoring method based on LP-WUS is provided, the method comprising: under the condition that a terminal monitors the low power consumption wake-up signal LP-WUS at the monitoring time of the LP-WUS, the terminal starts a first timer or a second timer according to the association relation between the monitoring time and the discontinuous reception (C-DRX) period in a connection state and monitors a Physical Downlink Control Channel (PDCCH); the first timer is a C-DRX timer, and the second timer is other timers different from the C-DRX timer. In a second aspect, a method for configuring a listening occasion of an LP-WUS is provided, the method comprising: The network side equipment configures the terminal with the monitoring time for the terminal to monitor the LP-WUS, wherein the monitoring time and the C-DRX period have an association relation, and the association relation is used for starting a first timer or a second timer. In a third aspect, a PDCCH monitoring device based on LP-WUS is provided, including a processing module, configured to, when a low-power wake-up signal LP-WUS monitors LP-WUS at a monitoring opportunity, start a first timer or a second timer according to an association relationship between the monitoring opportunity and a discontinuous reception C-DRX cycle in a connected state, and monitor a physical downlink control channel PDCCH; the first timer is a C-DRX timer, and the second timer is other timers different from the C-DRX timer. In a fourth aspect, a configuration device of the monitoring opportunity of the LP-WUS is provided, which comprises a configuration module, a configuration module and a configuration module, wherein the configuration module is used for configuring the monitoring opportunity of the LP-WUS to a terminal, the monitoring opportunity has an association relation with a C-DRX period, and the association relation is used for starting a first timer or a second timer. In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect. In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to, when a low power consumption wake-up signal LP-WUS is monitored by a monitoring opportunity of the LP-WUS, start a first timer or a second timer according to an association relationship between the monitoring opportunity and a discontinuous reception C-DRX cycle in a connected state, and monitor a physical downlink control channel PDCCH; the first timer is a C-DRX timer, and the second timer is other timers different from the C-DRX timer. In a seventh aspect, a network side device is provided, comprising a processor and