Tracking Area Allocation for Camping Load Balancing
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Solution Overview
Problem
Wireless communication systems face inefficiencies in managing camping load balancing across different Radio Access Technologies (RATs), leading to potential overload and decreased performance when multiple user equipment (UE) reside on the same optimal cell, as existing methods lack specific user equipment-based control and unified frameworks for load balancing.
Innovation Solution
Implementing a method that assigns preferred, non-preferred, or forbidden frequency attributes to tracking areas within the UE, allowing the system to select optimal frequencies for communication based on these attributes and ensuring UE camp on preferred frequencies unless quality drops below a threshold, thereby distributing load across frequencies and RATs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment is enforced to reside on an optimal cell, then connection quality is improved, but network overload and performance decrease occur
Solution Approach 1:
The patent applies local quality by assigning different frequency attributes (preferred, non-preferred, forbidden) to different tracking areas. This allows user equipment to be directed to specific frequencies based on their location, distributing load across multiple frequencies while maintaining optimal connection quality in each local area. The network can override default frequency selection with location-specific preferences to balance load without sacrificing connection reliability.
Solution Approach 2:
The patent changes the parameter of frequency selection by introducing frequency attributes (preferred, non-preferred, forbidden) that modify the default behavior of user equipment. Instead of always selecting the optimal frequency based on signal quality, the system adjusts frequency selection parameters based on tracking area characteristics and network load conditions, enabling load balancing while maintaining acceptable connection quality.
2Use of energy by moving object
If multiple user equipment reside on the same optimal cell, then resource utilization is improved, but overload and performance decrease result
Solution Approach 1:
The patent applies local quality by implementing location-specific frequency preferences through tracking area attributes. User equipment in different geographical areas (tracking areas) are directed to different preferred frequencies, distributing the concentration of devices across multiple frequencies. This prevents overload on any single optimal cell while maintaining efficient resource utilization across the network.
Solution Approach 2:
The patent implements feedback mechanisms where the network monitors load conditions and adjusts frequency attribute assignments dynamically. When overload is detected on certain frequencies or cells, the network can modify tracking area frequency preferences to redirect user equipment to less congested frequencies, creating a feedback loop that maintains network performance while utilizing available resources efficiently.
3Extent of automation
If tracking area location is communicated and updated frequently, then network control is improved, but signaling overhead increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring frequency attributes (preferred, non-preferred, forbidden) for different tracking areas before user equipment needs to make frequency decisions. This allows user equipment to autonomously select appropriate frequencies based on pre-established rules, reducing the need for frequent network signaling and updates while maintaining effective network control over frequency selection behavior.
Data Source
AI summary
Systems and methodologies are described that facilitate camping load balancing utilizing a frequency attribute. In a tracking area update procedure, each tracking area confirmed to user equipment can include an attribute of preferred, non-preferred, or forbidden. Based on such attribute, the user equipment can camp or idle on a particular cell for a specific frequency or network. The user equipment can camp on a cell from a preferred tracking area unless the quality of cells from the preferred frequency or network drops under a minimum threshold. The systems and methodologies provide a unified framework for camping load balancing across different Radio Access Technologies (RATs) and an optimization for the relevant signaling.