UE Paging Configuration for Limited Mobility Zones
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately tracking and efficiently transmitting paging signals to user equipment (UEs) in idle or inactive states, particularly in limited mobility zones, leading to increased network overhead and reduced successful paging likelihood.
Innovation Solution
The system defines limited mobility zones within a coverage area using parameters such as synchronization signal blocks, beam directions, and geolocation coordinates, allowing UEs to communicate these zones and receive enhanced paging configurations, thereby improving location tracking and reducing unnecessary paging attempts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the network node broadcasts paging signals over a broad coverage area, then the paging coverage is extended, but the network overhead increases and the paging accuracy decreases
Solution Approach 1:
The patent segments the coverage area into multiple paging areas, each associated with specific beam directions and limited mobility zones. This allows the network to target paging signals to specific geographic regions rather than broadcasting over the entire coverage area, thereby improving paging accuracy while maintaining broad coverage capability through the hierarchical structure of paging areas and cells.
Solution Approach 2:
The patent applies local quality by associating different paging configurations with different geographic regions and mobility zones. Enhanced paging configurations are applied to limited mobility zones where UEs exhibit restricted movement patterns, while restricted paging configurations are used in other areas. This localized approach optimizes paging performance for specific regions without compromising the entire network.
2Measurement precision
If the network node uses beam-level information to target a subset of UEs, then the paging accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring and pre-calculating beam-level information and paging area associations before actual paging operations. The network node maintains pre-established mappings between beams, paging areas, and mobility zones, allowing rapid deployment of enhanced paging configurations without complex real-time calculations during the paging process.
Solution Approach 2:
The patent introduces paging areas as an intermediary structure between the network node and individual UEs. Instead of directly managing complex beam-level targeting for every UE, the network uses paging areas as intermediate containers that group UEs with similar mobility characteristics and geographic locations, simplifying the paging decision process while maintaining accuracy.
3Reliability
If the network node transmits paging signals to all UEs within a coverage area, then the paging reliability is improved, but the loss of energy increases
Solution Approach 1:
The patent applies partial action by selectively transmitting enhanced paging signals only to UEs identified as being in limited mobility zones rather than broadcasting to all UEs in the coverage area. The network uses mobility zone information to determine which UEs are likely to remain in their current locations, targeting paging signals only to these partial sets of UEs while maintaining reliable delivery through beam-level precision.
Data Source
AI summary
A method for wireless communication by a user equipment (UE) includes receiving, from a network node, a first message indicating one or more parameters associated with a limited mobility zone within a coverage area of one or more cells. The method also includes transmitting, to the network node, a second message indicating the UE is within the limited mobility zone in accordance with determining the UE is within the limited mobility zone in accordance with the one or more parameters. The method further includes receiving, from the network node, a third message including first paging information in accordance with a first paging configuration associated with the limited mobility zone.