Group Resource Allocation Codebook for Wireless Overhead Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In broadband wireless communication systems, the overhead caused by resource allocation information is significant, reducing data transmission efficiency due to the need for detailed resource allocation messages in each subframe, especially when multiple Mobile Stations (MSs) are involved.
Innovation Solution
The implementation of Group Resource Allocation (GRA) using a codebook that groups MSs and employs bitmaps to indicate resource allocation, allowing for reduced overhead by transmitting only necessary information and using a limited format codebook shared between the Base Station (BS) and MSs, which includes configuring resource allocation information based on resource size and burst size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detailed resource allocation information is transmitted for each MS in each subframe, then accurate resource allocation is achieved, but overhead increases significantly
Solution Approach 1:
Multiple Mobile Stations are grouped together and treated as a single allocation unit. The base station transmits one unified resource allocation message for the entire group rather than separate messages for each MS, thereby reducing overhead while maintaining allocation accuracy through group-based resource assignment.
Solution Approach 2:
A single resource allocation message serves multiple Mobile Stations simultaneously. The message structure is designed to be universal, accommodating resource allocation for multiple MSs within one transmission, thus reducing the quantity of control information while preserving allocation precision.
2Quantity of substance
If resource allocation information is reduced for each MS, then overhead decreases, but resource allocation precision deteriorates
Solution Approach 1:
Resource allocation information for multiple MSs is merged into a single group-level message. By combining allocation details for several MSs into one unified structure, the overhead per MS is reduced while the overall allocation precision is maintained through the group-based approach.
Solution Approach 2:
The patent introduces a group dimension for resource allocation, moving from individual MS-level allocation to group-level allocation. This dimensional shift allows reduced information per MS while maintaining overall allocation precision through the group structure.
3Adaptability or versatility
If codebook format is extended to support more resource sizes, then adaptability increases, but complexity of codebook configuration increases
Solution Approach 1:
The codebook is segmented into multiple subsets, each supporting a limited range of resource sizes. This segmentation allows the system to maintain manageable codebook complexity while achieving broad adaptability by selecting appropriate subsets for different resource size requirements.
Solution Approach 2:
The codebook configuration is made dynamic through selective activation of different codebook subsets based on current resource size requirements. Rather than maintaining a single large static codebook, the system dynamically selects from multiple smaller subsets, reducing configuration complexity while preserving adaptability.
Data Source
AI summary
An apparatus and method for allocating resources by using a codebook based on a resource size and a burst size in a broadband wireless communication system are provided. A method of operating a Mobile Station (MS) includes receiving a group configuration message from a Base Station (BS), wherein the group configuration message includes an N-bit first bitmap for indicating that M resource sizes are supported in the group among N resource sizes supported for group resource allocation, where M is less than N, and receiving a group resource allocation message from the BS, wherein the group resource allocation message includes a second bitmap for indicating a size of a resource allocated to a corresponding MS among MSs for which resource allocation is determined.