Paging Wake-Up Signaling With WUS Subgroups for Lower Terminal Power
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The high power consumption of terminal devices in mobile communication systems due to periodic monitoring of physical downlink control channel messages for paging is not adequately addressed by existing 3GPP optimizations, particularly with the introduction of wake up service (WUS) in Release 18.
Innovation Solution
Implementing a paging method that groups terminal devices into subgroups and uses a simpler WUS to indicate whether monitoring is necessary, allowing devices to determine if they need to monitor the paging occasion (PO) based on their WUS supporting capability and subgroup affiliation, thereby reducing unnecessary resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal devices periodically monitor physical downlink control channel messages for paging, then paging reliability is improved, but power consumption increases
Solution Approach 1:
The patent divides terminal devices into multiple subgroups based on their paging characteristics and assigns different monitoring strategies to each subgroup. This segmentation allows devices to be differentiated according to their paging needs, with some subgroups monitoring more frequently and others less frequently, thereby reducing overall power consumption while maintaining paging reliability for critical devices.
Solution Approach 2:
The patent applies different paging monitoring strategies to different subgroups of terminal devices based on their local characteristics. Each subgroup is configured with specific monitoring parameters tailored to their paging patterns, allowing devices with higher paging needs to maintain high reliability while devices with lower paging needs consume less power.
2Use of energy by moving object
If wake up service (WUS) is introduced to reduce paging power consumption, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The patent segments terminal devices into subgroups and applies WUS selectively to specific subgroups rather than universally. This allows the complexity of WUS to be managed by applying it only where beneficial, while simpler mechanisms are used for other subgroups, thereby balancing power savings with implementation complexity.
Solution Approach 2:
The patent implements dynamic configuration of paging monitoring strategies based on terminal device characteristics and network conditions. The system can adaptively adjust which devices use WUS and which use traditional monitoring, allowing the complexity to be dynamically managed based on current operational requirements rather than being fixed.
Data Source
AI summary
A paging method is applied to a terminal device and includes sending first information, where the first information is used for indicating WUS supporting capability of the terminal device or expected WUS subgroup information of the terminal device; receiving first configuration information, where the first configuration information includes WUS subgroups corresponding to the terminal device; and monitoring WUS before a PO according to WUS supporting capability of a base station and the WUS subgroups corresponding to the terminal device. According to the method, the simpler WUS is utilized to indicate whether the corresponding terminal device needs to monitor the paging or not before the PO, so that the problem of too high power consumption caused by additional monitoring of paging messages by the terminal device is solved.