Wireless Communication System TAI List Allocation
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Solution Overview
Problem
In mobile communication systems, the frequent location registration process across multiple base station areas leads to increased battery consumption and wastage of wireless resources, particularly when multiple users move simultaneously, causing localized burdens on wireless resources.
Innovation Solution
Allocating different Tracking Area Identity (TAI) lists to mobile terminals based on their travel patterns to minimize location registration frequency and reduce resource consumption, with the call processing control unit dynamically updating TAI lists to reflect the mobile terminal's movement patterns and reducing the need for location registration across area boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the mobile terminal executes location registration each time it moves to a different TAI area, then the mobile terminal can be accurately tracked, but the wireless resource consumption and battery power consumption increase
Solution Approach 1:
The service area is divided into multiple TAI (Tracking Area Identity) regions, and the mobile terminal is assigned a TAI list containing multiple TAIs. The terminal only performs location registration when moving outside its assigned TAI list, reducing registration frequency while maintaining trackability within the segmented area.
Solution Approach 2:
The network pre-assigns a TAI list to the mobile terminal based on its service area and movement patterns. This preliminary configuration allows the terminal to move freely within the assigned TAIs without registration, and only triggers registration when exiting the predefined area, reducing unnecessary registration operations.
2Loss of energy
If a single TAI area is used to manage a mobile terminal, then wireless resources for call paging are suppressed, but location registration frequency increases when the terminal moves between TAI areas
Solution Approach 1:
The network divides the service area into multiple TAI regions and assigns a TAI list to each mobile terminal. This segmentation allows the terminal to move across multiple geographic areas while remaining within its assigned TAI list, reducing location registration frequency while maintaining efficient paging within each TAI area.
Solution Approach 2:
The solution transitions from managing a single TAI area to managing multiple TAI areas simultaneously through the TAI list concept. This dimensional expansion allows the terminal to operate across a larger area without increasing paging overhead, as paging can still be targeted to specific TAIs while the terminal maintains registration status across the expanded area.
3Measurement precision
If multiple mobile terminals move simultaneously across area boundaries, then location registration can be executed, but localized burden on wireless resources increases
Solution Approach 1:
The network pre-configures TAI lists for mobile terminals based on their service areas and typical movement patterns. This preliminary assignment distributes terminals across different TAI lists, reducing the probability that multiple terminals will simultaneously exit the same TAI area boundary, thereby dispersing the registration load across different geographic locations and time periods.
Data Source
AI summary
A wireless communication system including a wireless terminal, a plurality of base stations and a call processing control unit is disclosed. The wireless terminal, upon reception of the notification information from any of the base stations, judges whether the area included in the notification information is contained in the location registration area list stored in a storage unit, and in the case where the particular area is not so contained, sends a location registration request to the call processing control unit. On the other hand, the call processing control unit creates a new location registration area list based on the area included in the notification information and the neighboring areas, and sends the location registration area list to the wireless terminal thereby to execute the paging process.