UE Paging Ratio Signaling for Idle Mobility Energy Balance
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Solution Overview
Problem
Existing wireless communication systems face challenges in balancing power consumption between user equipment (UE) and network resources during idle or inactive mode mobility, particularly due to inefficient tracking area configurations that lead to increased UE power consumption and network paging overhead.
Innovation Solution
User equipment (UE) provides assistance information related to a paging ratio, allowing the network to configure optimal tracking areas (TAs/RNAs) that balance UE and network power savings by adjusting registration areas based on the predicted paging frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If the tracking area configuration uses smaller tracking areas to reduce network paging overhead, then network energy expenditure decreases, but UE power consumption increases due to more frequent location updates
Solution Approach 1:
The patent applies dynamics by making the tracking area configuration adaptive rather than static. The network configures tracking areas dynamically based on UE-provided assistance information about its mobility patterns and service requirements. This allows the system to optimize the balance between UE power consumption and network paging overhead by adjusting tracking area sizes and configurations in real-time according to actual UE behavior, resolving the contradiction between reduced network energy expenditure and increased UE power consumption.
2Use of energy by moving object
If the tracking area configuration uses larger tracking areas to reduce UE location update frequency, then UE power consumption decreases, but network paging overhead increases
Solution Approach 1:
The patent resolves this contradiction through dynamic configuration of tracking areas based on UE assistance information. Instead of using uniformly large tracking areas that increase network paging overhead, the system adapts tracking area configurations to individual UE mobility patterns and service requirements. This dynamic approach allows optimization of both UE power consumption and network paging overhead simultaneously, rather than forcing a static trade-off between the two parameters.
3Ease of manufacture
If the network uses default tracking area configurations for all UEs, then device complexity and deployment ease are improved, but power efficiency for idle or inactive mode mobility deteriorates
Solution Approach 1:
The patent applies preliminary action by having UEs provide assistance information about their mobility patterns and service requirements before the network finalizes the tracking area configuration. This advance information allows the network to pre-optimize tracking area configurations tailored to each UE's specific needs, improving power efficiency for idle or inactive mode mobility without significantly increasing deployment complexity. The UE capability indication mechanism enables this preliminary optimization step.
Solution Approach 2:
The patent resolves the contradiction through parameter changes by allowing the network to adjust tracking area configuration parameters based on UE-provided assistance information. Instead of using fixed default configurations, the system modifies tracking area sizes, boundaries, and other parameters according to individual UE mobility patterns and service requirements. This parameter adaptation improves power efficiency while maintaining reasonable deployment ease through standardized information exchange procedures.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit assistance information associated with a paging ratio for the UE, wherein the paging ratio is associated with an idle mode or an inactive mode of the UE. The UE may communicate with a network node based at least in part on the assistance information associated with the paging ratio for the UE. Numerous other aspects are described.