Wireless Frequency Resource Allocation with Adaptive RBG Sizes
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Solution Overview
Problem
Existing wireless communication systems face challenges in effectively allocating frequency domain resources, particularly in channels with narrow bandwidths, and there is a need for improved methods to optimize resource block group (RBG) size determination and signaling in these systems.
Innovation Solution
The method involves identifying allocated resources based on tables defining multiple RBG sizes per bandwidth part (BWP) size, accommodating both wide and narrow bandwidths, and includes a terminal with a transceiver and processor to manage resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single RBG size is used for all bandwidth parts, then the FDRA field structure is simple, but resource allocation efficiency deteriorates for narrow bandwidth channels
Solution Approach 1:
The patent divides the bandwidth parts into different categories (first BWP size and second BWP size) and assigns different RBG sizes to each category. This segmentation allows the FDRA field to adapt to different bandwidth conditions, improving resource allocation efficiency for narrow bandwidth channels while maintaining simplicity for wide bandwidth channels.
Solution Approach 2:
The patent makes the RBG size dynamic by selecting different sizes based on the BWP size. The FDRA field structure adapts dynamically to the channel bandwidth conditions, allowing optimal resource allocation efficiency for each specific bandwidth scenario rather than using a fixed structure.
2Quantity of substance
If RBG size is increased to reduce the number of RBGs, then the FDRA field requires fewer bits, but the granularity of resource allocation deteriorates
Solution Approach 1:
The patent applies different RBG sizes to different bandwidth parts based on local requirements. Narrow bandwidth channels use smaller RBG sizes for fine-grained allocation, while wide bandwidth channels use larger RBG sizes to reduce the total number of RBGs. This local quality approach optimizes both allocation granularity and field size requirements.
3Adaptability or versatility
If multiple RBG sizes are supported, then resource allocation flexibility improves, but system complexity increases
Solution Approach 1:
The patent implements a universal FDRA field structure that can handle multiple BWP sizes and RBG configurations through a single unified approach. The field uses bitmaps that can be interpreted differently based on the configured BWP size, allowing the same structural framework to serve multiple bandwidth scenarios without requiring separate complex allocation mechanisms.
Data Source
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AI summary
In order to allocate frequency domain resources in a wireless communication system, a method of operating a terminal in a wireless communication system may comprise receiving configuration information related to resource allocation, receiving control information related to the resource allocation, identifying allocated resources based on at least one of the configuration information or the control information, and transmitting or receiving a signal through the resources.