Telecommunications Apparatus Movable Radio Node Tracking
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Solution Overview
Problem
Current wireless communications networks face challenges in precisely locating idle mode terminal devices and efficiently managing mobility procedures, particularly with the introduction of mobile radio nodes which complicate tracking and access control.
Innovation Solution
The implementation of a method that determines a first indicator for a radio node with a movable position, allowing for enhanced terminal mobility procedures. This involves identifying the indicator to the radio node, processing registration requests, and communicating responses that allow or deny access based on the indicator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If tracking areas and registration areas are used to locate idle mode terminal devices, then the core network can maintain knowledge of terminal locations, but the location precision is insufficient and access control is difficult
Solution Approach 1:
The patent segments the tracking area into multiple sub-tracking areas, each with a unique identifier. This segmentation allows the core network to track terminal devices with finer granularity while maintaining the hierarchical structure of existing tracking areas, thus improving location precision without completely redesigning the tracking system.
Solution Approach 2:
The patent introduces a new dimension of tracking by adding sub-tracking area identifiers alongside the existing tracking area identifiers. This dimensional expansion allows the system to provide more precise location information (sub-tracking area level) while maintaining compatibility with the existing tracking area structure.
2Measurement precision
If tracking areas cover large geographical areas, then fewer tracking areas are needed, but precise location indication and access control become difficult
Solution Approach 1:
Each tracking area is segmented into multiple sub-tracking areas, where each sub-tracking area covers a smaller geographical region. This segmentation enables precise location indication within the broader tracking area while maintaining efficient network management through the hierarchical structure.
3Reliability
If mobile radio nodes are introduced to enhance network coverage, then service continuity is improved, but location tracking and access control become more complex
Solution Approach 1:
The patent assigns dynamic sub-tracking area identifiers to mobile radio nodes based on their current location or serving area. This dynamic assignment allows the system to track mobile nodes effectively while providing fine-grained access control, as the sub-tracking area identifier changes with the node's position but maintains a manageable scope.
Solution Approach 2:
The sub-tracking area identifier acts as an intermediary between the mobile radio node and the core network. It provides a manageable level of abstraction that enables effective tracking and access control of mobile nodes without requiring the core network to directly manage the complexity of mobile node locations.
4Measurement precision
If existing tracking areas are adjusted after network deployment, then location precision can be improved, but the adjustment process is extensive and difficult
Solution Approach 1:
The sub-tracking area structure is preliminarily established during network deployment, with each tracking area pre-segmented into sub-tracking areas. This preliminary action allows the system to provide precise location tracking from the outset and enables flexible adjustments later without requiring extensive reconfiguration, as the hierarchical structure is already in place.
Data Source
AI summary
A method of operating a system in a telecommunications network, the telecommunications network comprising at least a first radio node and a terminal wherein the first radio node is configured to provide a wireless access interface to communicate with the terminal. The method comprises determining that the first radio node has a movable position; determining a first indicator for the first radio node and for assisting a terminal mobility procedure, based on the determination that the first radio node has a movable position; identifying the first indicator to the radio node; receiving a registration request from the terminal; and communicating a response to the registration request to the terminal, wherein the response to the terminal identifies the first indicator as being allowed for the terminal.