Paging Method Using CSG ID Segmentation for Network Resource Optimization
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Solution Overview
Problem
In existing communication network technologies, paging messages are sent to all location areas in a mobility list, leading to numerous unnecessary messages and wastage of bandwidth and system resources due to the inclusion of thousands of home access points.
Innovation Solution
A method where a management network element receives a CSG ID from an access network element or gateway, determines if the corresponding location area is in the UE's mobility list, and sends a paging message only to the relevant access network elements or gateways, reducing the scope of message distribution by generating a CSG ID data table to identify the correct access points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If paging messages are sent to all location areas in the mobility list, then the paging coverage is comprehensive, but the bandwidth resources and system resources are wasted due to the huge number of home APs
Solution Approach 1:
The patent segments the mobility list into multiple groups based on CSG ID. Instead of paging all location areas uniformly, the system divides them into distinct segments (groups) and pages only the relevant segments where the UE might be located, thereby reducing unnecessary paging messages while maintaining comprehensive coverage where needed.
Solution Approach 2:
The patent applies local quality by differentiating paging strategies for different location areas. High-priority location areas (those more likely to contain the UE) receive paging messages, while low-priority areas do not. This localized approach optimizes resource allocation by concentrating paging efforts where they are most likely to be effective.
2Reliability
If paging messages are sent to all location areas in the mobility list, then no paging message is lost, but the number of paging messages becomes huge occupying lots of bandwidth resources
Solution Approach 1:
The patent applies partial action by sending paging messages to only a subset of location areas (those in the determined group) rather than all location areas in the mobility list. This partial approach is sufficient to locate the UE while significantly reducing the quantity of paging messages, avoiding the waste of sending messages to areas where the UE is unlikely to be present.
Solution Approach 2:
The system uses the UE's own mobility list and allowed CSG list information to self-determine which location areas are most likely to contain the UE. This self-service mechanism allows the network to intelligently select paging targets based on the UE's registered mobility patterns and access permissions, reducing unnecessary paging messages.
3Adaptability or versatility
If the mobility list includes multiple location areas with thousands of home APs, then the UE can access various areas, but the paging efficiency decreases due to the huge number of home APs
Solution Approach 1:
The patent performs preliminary action by pre-determining groups of location areas based on the UE's mobility list and allowed CSG list before paging is needed. This preliminary grouping organizes the vast number of location areas into manageable segments, enabling efficient paging operations later without sacrificing the UE's ability to access various areas.
Solution Approach 2:
The patent segments the large mobility list into multiple groups based on CSG ID and location area ID combinations. This segmentation transforms an unmanageably large set of thousands of home APs into smaller, organized groups that can be paged efficiently, maintaining comprehensive access capability while dramatically improving paging efficiency.
Data Source
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AI summary
The present disclosure discloses a paging method, network element (NE), management NE, and communication system to reduce paging messages and save system resource effectively. The technical solution provided in the present disclosure includes: receiving a closed subscriber group (CSG) ID supported by an access network element (NE) or an access gateway (GW) from the access NE or the access GW; obtaining, according to the CSG ID, the access NE or the access GW to be paged; and sending a paging message to the access NE or the access GW to be paged.