Location Update Rule Scheduling for Wireless Access Terminals
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Solution Overview
Problem
Conventional wireless communication systems face inefficiencies in scheduling location update reports for access terminals, leading to increased overhead and delay, particularly in multicast communications, which can degrade system performance.
Innovation Solution
The access network determines a location update rule for each access terminal based on its location within a defined region, allowing for optimized location update reporting, thereby reducing unnecessary transmissions and improving system efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If location update reports are frequently transmitted to maintain accurate location information, then location accuracy is improved, but reverse link traffic overhead increases
Solution Approach 1:
The patent applies local quality by implementing location-based differential reporting, where access terminals transmit location update reports with different frequencies and detail levels based on their specific geographic locations. Terminals in areas requiring high location accuracy (e.g., within defined geographic fences) report more frequently, while terminals in stable locations report less frequently, optimizing the balance between location accuracy and reverse link traffic overhead.
Solution Approach 2:
The patent implements dynamics by making location update reporting adaptive and dynamic rather than static. The access network dynamically adjusts reporting requirements based on terminal movement patterns, location changes, and network conditions. This allows the system to optimize location tracking accuracy while minimizing unnecessary reverse link traffic when terminals are stationary or in stable locations.
2Measurement precision
If location update reports are transmitted frequently to track terminal movement, then location tracking accuracy is improved, but system overhead increases
Solution Approach 1:
The patent applies parameter changes by dynamically modifying location update reporting parameters (frequency, detail level, trigger conditions) based on terminal location, movement patterns, and network conditions. This allows the system to maintain high location tracking accuracy when needed while reducing overhead during periods of stability, optimizing the balance between tracking precision and system complexity.
3Productivity
If location update rules are customized for different terminals based on location, then location management efficiency is improved, but control complexity increases
Solution Approach 1:
The patent implements local quality by applying different location update rules and reporting requirements to different access terminals based on their specific locations, movement patterns, and service requirements. This location-specific customization improves location management efficiency for each terminal while the access network automatically manages the complexity of rule selection and enforcement.
Solution Approach 2:
The patent employs feedback mechanisms where the access network monitors terminal location changes and automatically adjusts location update rules accordingly. This feedback loop enables efficient location management by adapting to actual terminal behavior patterns, reducing the need for manual configuration and simplifying control complexity while maintaining high productivity.
Data Source
AI summary
Embodiments are directed to scheduling location update reports of access terminals to an access network within a wireless communications system. The access network acquires a defined location region within a wireless communications system, and determines a location of a given access terminal within the wireless communications system. The access network selects one of a plurality of location update rules for the given access terminal based on a relationship between the defined location region and the determined location, each of the plurality of location update rules specifying different conditions for prompting location update reports from the given access terminal to the access network. The access network informs the given access terminal of the selected location update rule, and the given access terminal sends one or more location update reports to the access network in accordance with the selected location update rule.