Inactive UE Paging Subgrouping for Low-Power Reliable Monitoring
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Solution Overview
Problem
In wireless communication systems, UEs in an inactive state experience inconsistent state recognition between the network device and the UE, leading to unnecessary power consumption and loss of paging messages due to improper subgrouping during paging occasions.
Innovation Solution
The UE determines a paging subgroup ID in a paging subgrouping mode based on its inactive state to monitor wake-up signals and paging messages, aligning with network configuration to reduce message loss and improve success rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all UEs are woken up in one paging occasion without subgrouping, then paging coverage is ensured, but power consumption increases due to unnecessary wake-ups of low paging probability UEs
Solution Approach 1:
The patent divides UEs into different paging subgroups based on their paging probabilities and service types. This segmentation allows the network to wake up only specific subgroups at different paging occasions, ensuring that UEs with low paging probabilities are not unnecessarily woken up, thus reducing power consumption while maintaining reliable paging coverage for all UEs.
2Use of energy by moving object
If UEs are grouped for paging to reduce power consumption, then energy efficiency improves, but state inconsistency between network device and UE leads to paging message loss
Solution Approach 1:
The patent performs preliminary actions by having the UE determine its paging subgroup ID before entering the inactive state, and the network device pre-configures the corresponding paging occasion and subgroup ID. This preliminary configuration ensures that both the UE and network device have consistent state information before paging occurs, preventing message loss due to state inconsistency while maintaining energy-efficient subgrouping.
3Stability of the object's composition
If UE uses original subgrouping in inactive state, then subgrouping agreement is maintained, but state inconsistency causes paging message loss
Solution Approach 1:
The patent changes the parameter determination approach by having the UE determine its paging subgroup ID based on its current inactive state characteristics rather than using a fixed original subgrouping. The network device receives this determined subgroup ID and configures paging accordingly. This parameter change ensures that the subgrouping adapts to the UE's actual state, maintaining agreement between UE and network while preventing message loss.
Data Source
AI summary
A monitoring method is performed by a user equipment (UE), and includes: determining a paging subgroup identifier (ID) in a paging subgrouping mode, wherein the UE is in an inactive state, and the paging subgroup ID is used for the UE in the inactive state to monitor at least one of a wake-up signal or a paging message.