Paging Schedule Segmentation for Connected Mode UE Load Distribution
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Solution Overview
Problem
The use of synchronized Discontinuous Reception (DRX) patterns for connected User Equipment (UEs) in radio communication networks leads to load peaks, resulting in reduced throughput and delays due to poor load distribution, making it challenging to efficiently notify UEs of system information changes.
Innovation Solution
Introducing a separate paging schedule for connected UEs that differs from the idle mode schedule, allowing for unsynchronized DRX patterns and dedicated system information change notifications, ensuring load distribution and timely information delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If synchronized DRX patterns are used for connected UEs, then UE power saving is improved, but load distribution deteriorates causing load peaks
Solution Approach 1:
The patent segments the UE population into two distinct groups: idle mode UEs and connected mode UEs. It introduces separate paging schedules for each group, allowing idle UEs to follow a first paging schedule while connected UEs follow a second paging schedule. This segmentation enables unsynchronized DRX patterns for connected UEs, preventing load peaks while maintaining power saving benefits.
2Use of energy by moving object
If synchronized DRX patterns are used for connected UEs, then UE power saving is improved, but throughput deteriorates due to load peaks
Solution Approach 1:
The patent segments connected UEs from idle UEs and applies different paging schedules to each group. Connected UEs use a second paging schedule that is unsynchronized with the first paging schedule used by idle UEs. This prevents all connected UEs from waking up simultaneously, thereby maintaining throughput while preserving power saving.
3Device complexity
If a single paging schedule is used for all UEs, then system simplicity is improved, but notification reliability deteriorates
Solution Approach 1:
The patent segments the paging schedule into two distinct schedules: a first paging schedule for idle mode UEs and a second paging schedule for connected mode UEs. This segmentation ensures that connected UEs receive reliable notifications of upcoming system information changes through dedicated paging messages, while maintaining overall system manageability.
Solution Approach 2:
The patent applies local quality by tailoring the paging schedule to the specific needs of different UE modes. Connected mode UEs receive enhanced notification service through the second paging schedule with appropriate timing and reliability, while idle UEs follow the first paging schedule. This localized optimization ensures notification reliability for connected UEs without unnecessarily complicating the entire system.
Data Source
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AI summary
A basic idea is to introduce an additional paging schedule for user equipment in connected mode that differs from the paging schedule used for user equipment in idle mode. Consequently, the inventive mechanism relies on distributing (S1) a notification of an upcoming change of system information in paging messages according to a first paging schedule for user equipment in idle mode, and distributing (S2) a notification of an upcoming change of system information in paging messages according to a second paging schedule for user equipment in connected mode. The second paging schedule for user equipment in connected mode is different from the first paging schedule for user equipment in idle mode. In this way, a satisfactory load distribution is achieved, at the same time as UEs in both connected and idle mode are able to receive important system information notifications.