Frequency Priority Handling for Wireless Terminal Cell Reselection
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Solution Overview
Problem
In wireless communication systems, particularly in LTE networks, the current methods for cell reselection do not adequately consider terminal supporting characteristics, leading to degraded service quality due to illogical network operations when terminals move between cells, as they apply frequency priorities without accounting for the terminal's capabilities, resulting in unpredictable terminal actions and service disruptions.
Innovation Solution
A method and apparatus that handle frequency priority for cell reselection based on terminal supporting characteristics by receiving minimum priority application request information and transmitting terminal supporting characteristics information, allowing for variable frequency priority adjustments according to the terminal's capabilities, ensuring that the terminal can select cells within its supported RAT range, thereby preventing unexpected network operations and improving service continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the terminal applies frequency priority for cell reselection without considering terminal supporting characteristics, then the cell reselection process is simplified, but the service quality deteriorates due to illogical network operations
Solution Approach 1:
The patent changes the parameter of frequency priority application by introducing terminal supporting characteristics as a conditional factor. The network determines whether to apply minimum frequency priority based on whether the terminal supports other RATs, transforming a static priority application into a dynamic parameter adjustment that adapts to terminal capabilities.
Solution Approach 2:
The patent applies different frequency priority handling strategies to different terminal types based on their supporting characteristics. Terminals supporting other RATs receive different treatment compared to those that don't, creating localized quality adjustments in the cell reselection process that match specific terminal capabilities.
2Productivity
If the network provides mobility information without considering terminal supporting characteristics, then the mobility management is streamlined, but the service continuity deteriorates due to unpredictable terminal actions
Solution Approach 1:
The patent introduces feedback mechanisms where the terminal reports its supporting characteristics to the network, and the network uses this feedback to determine appropriate frequency priority application. This feedback loop ensures that mobility information is provided in a manner that accounts for terminal capabilities, making terminal actions predictable and service continuous.
Solution Approach 2:
The patent performs preliminary determination of frequency priority application based on terminal supporting characteristics before the terminal performs cell reselection. The network assesses terminal capabilities in advance and pre-determines the appropriate priority handling, preventing unpredictable terminal actions and ensuring service continuity.
3Speed
If the terminal selects cells without considering supported frequencies, then the cell selection process is faster, but service disruptions occur due to illogical terminal movements
Solution Approach 1:
The patent makes the cell selection process dynamic by incorporating terminal supporting characteristics into the frequency priority determination. The cell selection behavior adapts in real-time based on whether the terminal supports other RATs, allowing fast selection while maintaining service stability through capability-aware priority adjustment.
Data Source
AI summary
Provided in one aspect is a method for handling a frequency priority performed by a terminal in a wireless communication system. The method comprises: receiving minimum priority application request information from a network; and handling a frequency priority for cell reselection on the basis of the minimum priority application request information and the supporting characteristics of the terminal. The minimum priority application request information indicates an application of the minimum priority to a current frequency of the terminal or all frequencies of current radio access technology (RAT) of a cell which the terminal camps on. The supporting characteristic of the terminal is whether the terminal supports the RAT other than the current RAT. The handling of the frequency priority is a variable application of the frequency priority for the cell reselection according to the contents of the minimum priority application request information and the supporting characteristics of the terminal.