Resource Allocation Apparatus Reducing Overhead in Mobile Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for changing fixed resource allocation in mobile communication systems suffer from overhead due to the lack of consideration for resource collisions, leading to inefficient transmission of control information.
Innovation Solution
A method and apparatus that calculate and transmit the necessary control information for resource allocation changes, selecting the method that requires the least amount of control information, and implementing a roll-over mechanism to temporarily cancel and reallocate resources, thereby reducing overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed resource allocation is changed using conventional methods, then resource allocation flexibility is improved, but control information overhead increases
Solution Approach 1:
The patent extracts and identifies only the necessary control information required for resource allocation changes, separating it from unnecessary control information. This is achieved by determining whether resource collisions actually occur before transmitting control information, thereby reducing overhead while maintaining allocation flexibility.
Solution Approach 2:
The patent changes the parameter of control information transmission by making it conditional - control information is transmitted only when resource collisions are detected. This parameter change (from always transmit to conditionally transmit) reduces overhead while preserving the ability to flexibly reallocate resources when needed.
2Manufacturing precision
If control information is transmitted for every resource allocation change, then resource allocation accuracy is improved, but transmission efficiency deteriorates
Solution Approach 1:
The patent applies partial action by transmitting control information only when necessary (when resource collisions occur) rather than for every resource allocation change. This partial transmission maintains allocation accuracy for critical cases while improving overall transmission efficiency by avoiding unnecessary control information transmission.
Solution Approach 2:
The patent implements a feedback mechanism where the system first determines whether resource collisions occur before deciding to transmit control information. This feedback loop ensures that control information is transmitted only when actually needed, maintaining allocation accuracy while optimizing transmission efficiency.
3Loss of information
If fixed resource allocation regions are reused without control information, then overhead is reduced, but resource collision risk increases
Solution Approach 1:
The patent performs preliminary action by determining whether resource collisions occur before reusing fixed allocation regions without control information. This preliminary check ensures that resource reuse is safe and collision-free, maintaining reliability while reducing overhead by avoiding unnecessary control information transmission.
Solution Approach 2:
The system performs self-service by autonomously determining whether resource collisions occur and whether control information transmission is necessary. This self-determination mechanism enables the system to safely reuse fixed allocation regions without external control information while maintaining reliability through internal collision detection.
Data Source
AI summary
An operating method of a base station for changing a fixed resource allocation to reduce overhead in a mobile communication system includes calculating a total amount of resources allocated to a corresponding subframe in a period of a corresponding fixed allocation resource; when the total amount of the resources allocated to the corresponding subframe is greater than a threshold, temporarily canceling one or more corresponding fixed allocation resources to make the total amount of the resources allocated to the corresponding subframe less than or equal to the threshold; and reallocating the one or more canceled fixed allocation resources according to a corresponding rule.