Reducing Resource Allocation Overhead in Wireless Frames
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Solution Overview
Problem
In broadband wireless communication systems, the overhead of resource allocation information messages competes with user data bursts for resources, leading to a decrease in overall data rate due to the transmission of the same resource allocation information in every frame.
Innovation Solution
The proposed solution involves an apparatus and method that reduces the overhead of resource allocation information messages by periodically generating and transmitting resource allocation information for specific regions, such as the UL control regions, only when necessary, using a scheduler to determine when to generate and include this information in the MAP message, and using valid duration indicators to manage the validity of this information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource allocation information messages are transmitted in every frame, then the reliability of resource allocation is improved, but the overhead increases and data rate decreases
Solution Approach 1:
The patent implements periodic transmission of resource allocation information messages by introducing a periodicity parameter that determines how often UL-MAP information elements are transmitted. Instead of transmitting in every frame, the system transmits these messages periodically, reducing overhead while maintaining adequate resource allocation reliability through controlled intervals.
Solution Approach 2:
The patent changes the transmission parameter from continuous (every frame) to periodic (every N frames) by introducing a configurable periodicity parameter. This parameter change allows the system to adjust the transmission frequency based on traffic conditions, optimizing the balance between reliability and data rate.
2Manufacturing precision
If resource allocation information messages are transmitted in every frame, then the accuracy of resource allocation is improved, but the resource efficiency deteriorates
Solution Approach 1:
By transmitting resource allocation information periodically rather than continuously, the system maintains adequate allocation accuracy for periodic traffic patterns while freeing up resources in frames where allocation messages are not transmitted, thereby increasing the quantity of resources available for user data.
Solution Approach 2:
The patent applies partial action by transmitting resource allocation information only when necessary (periodically) rather than in every frame. This partial transmission approach maintains sufficient allocation accuracy while reducing the total amount of overhead resources consumed.
3Stability of the object's composition
If the same resource allocation information message is transmitted in every frame, then the consistency of control information is improved, but the system performance deteriorates due to increased overhead
Solution Approach 1:
The patent maintains control information consistency through periodic transmission at regular intervals defined by a periodicity parameter. This periodic approach ensures that control information is consistently updated at appropriate frequencies while avoiding the performance degradation caused by continuous transmission in every frame.
Data Source
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AI summary
A method for operating a base station in a wireless communication system is provided. The method comprises the steps of broadcasting a message including information indicating a periodicity and an offset of frames including uplink control channels for an initial network entry; and receiving an uplink signal for the initial network entry through a uplink control channel in one of the frames that are identified based on the periodicity and the offset, wherein the periodicity is a frame interval between 2 consecutive frames among the frames, wherein the offset is a start frame of the periodicity, and wherein the periodicity and the offset are defined in frames.