Serving GPRS Support Node Mixed Location Update Signaling
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Solution Overview
Problem
Existing mobile terminals face high calculation workload and power consumption during location updates in both 2G and 3G networks, affecting their technical performance.
Innovation Solution
A method where a serving GPRS support node and visitor location register coordinate to perform simultaneous routing and location area updates by adding a mixed location update indication and identification to routing area update requests, allowing the 2G network to perform location area updates concurrently with routing area updates in the 3G network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mobile terminal separately executes location area update on 2G network and routing area update on 3G network, then both networks can be updated, but the calculation workload and power consumption of the mobile terminal increase
Solution Approach 1:
The patent combines the location area update process of the 2G network and the routing area update process of the 3G network into a single unified update process. The network side initiates both updates simultaneously through integrated signaling, allowing the mobile terminal to update both networks concurrently without separately executing each update procedure, thereby reducing power consumption and calculation workload.
Solution Approach 2:
The patent creates a universal update mechanism that handles both 2G location area updates and 3G routing area updates through a single integrated process. The network side uses a unified signaling structure that can simultaneously manage updates across different network types and domains, making the update system multi-functional and reducing the burden on the mobile terminal.
2Reliability
If a mobile terminal separately executes location area update on 2G network and routing area update on 3G network, then both networks can be updated, but the calculation workload of the mobile terminal increases
Solution Approach 1:
The patent merges the separate update procedures into a single integrated update process initiated by the network. The mobile terminal receives a unified update request that encompasses both 2G location area update and 3G routing area update, eliminating the need to separately execute and manage two independent update procedures, thus reducing calculation workload and procedural complexity.
Solution Approach 2:
The network side acts as an intermediary that manages and coordinates both update processes. Instead of the mobile terminal independently managing separate update procedures for 2G and 3G networks, the network side orchestrates both updates through integrated signaling, transferring the management complexity from the terminal to the network infrastructure.
3Reliability
If a mobile terminal separately executes location area update and routing area update, then both updates are performed, but the update time is extended
Solution Approach 1:
The patent enables continuous concurrent execution of both location area update and routing area update processes through network-initiated integrated signaling. Instead of sequentially completing one update before starting the other, both updates proceed simultaneously in a coordinated manner, reducing the total update duration while ensuring both updates are completed successfully.
Solution Approach 2:
The network side performs preliminary preparation and coordination of both update processes before initiating them to the mobile terminal. By pre-configuring the integrated update signaling and preparing both update procedures in advance, the network enables simultaneous execution without requiring the terminal to sequentially process each update, thereby reducing overall update time.
Data Source
AI summary
The present invention provides a method for implementing a location update that includes: receiving a routing area update request message which includes a mixed location update indication and a routing area identification (RAI) and is sent by a serving radio network subsystem (SRNS); performing, at least according to the RAI, a routing area update; at least according to the routing area update request message, obtaining a location area identification (LAI) and an address of a visitor location register (VLR) which are of a 2G network system where a mobile terminal is located; and sending the location area update request message, which carries at least the mixed location update indication and the LAI, to the VLR corresponding to the address of the VLR such that the VLR corresponding to the address of the VLR implements a location area update, at least according to the location area update request message.