MEC Node Paging Policy Control via UE Mobility Analysis
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Solution Overview
Problem
In mobile networks, existing systems face challenges in implementing a paging process that can effectively manage different paging policies for each user equipment (UE) based on its movement history, as the Mobility Management Entity (MME) handles a large number of UEs, making it difficult to control paging processes at the UE level without increasing transaction load.
Innovation Solution
A node apparatus for edge computing is introduced, which analyzes signaling information between base stations and the MME to collect mobility and communication state information of UEs, decides a paging range, and transmits paging messages to appropriate base stations, allowing for UE-level control of paging processes without affecting the MME's operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the MME collectively manages history information for each UE to enable UE-level paging policy control, then the paging accuracy and efficiency are improved, but the transaction load on the MME increases significantly
Solution Approach 1:
The patent segments the paging policy control function from the MME and relocates it to individual base stations. Each base station independently manages and executes paging policies for UEs within its coverage area, dividing the centralized control task into distributed autonomous units. This segmentation maintains paging accuracy through local decision-making while eliminating the transaction load bottleneck at the MME.
Solution Approach 2:
The patent introduces base stations as intermediary entities between the MME and UEs for paging policy execution. The base station receives paging requests from the MME and autonomously determines the paging range based on locally stored UE history information, acting as a mediator that relieves the MME of detailed policy management responsibilities while maintaining efficient paging delivery.
2Reliability
If the paging range is broadened to ensure coverage for mobile UEs, then the paging success rate is improved, but the paging latency increases
Solution Approach 1:
The patent implements dynamic paging range adjustment at each base station based on real-time UE mobility states. The base station analyzes UE history information to determine mobility patterns and adaptively expands or contracts the paging range accordingly. For highly mobile UEs, the paging range is dynamically broadened to ensure coverage, while for stationary UEs, a narrow range suffices, thus reducing unnecessary latency while maintaining high success rates.
Solution Approach 2:
The patent changes the paging range parameter dynamically based on UE mobility characteristics. By monitoring UE movement history and adjusting the paging area size and scope as a variable parameter rather than a fixed value, the system optimizes the balance between coverage (success rate) and response time (latency) for different UE scenarios.
Data Source
AI summary
An MEC node, by analyzing signaling information transmitted between each of a plurality of eNBs and an MME, collects at least one of information indicating a mobility state and information indicating a communication state of a UE present within cells of the plurality of base stations. The MEC node decides a paging range based on the information collected as above upon receiving a paging message for paging the UE, the paging message having been transmitted by MME to one or more eNBs in accordance with a predetermined paging policy. The MEC node transmits a paging message for paging the UE to each eNB present in the decided paging range.