Dynamic Physical Resource Block Assignment for Spectrum Utilization
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Solution Overview
Problem
Existing systems for assigning physical resource blocks (PRBs) are limited by standardized bandwidths, leading to underutilization of carrier-owned bandwidth and the need for costly and complex approval processes for non-standard bandwidth usage, resulting in unused carrier-controlled spectrum.
Innovation Solution
A method that determines a standard bandwidth greater than the carrier-controlled bandwidth, computes a bandwidth differential, and assigns PRBs only to the carrier-controlled bandwidth, while avoiding the differential, allowing for PRB aggregation from non-contiguous carrier-owned parts of the spectrum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standardized bandwidths are used for PRB assignment, then device complexity is reduced and ease of manufacture is improved, but carrier-owned bandwidth utilization deteriorates
Solution Approach 1:
The patent implements dynamic PRB assignment that adapts to the actual carrier bandwidth. The system determines the carrier's specific bandwidth amount and dynamically calculates the appropriate number of PRBs based on this actual bandwidth rather than using fixed standardized bandwidth tables. This dynamic adaptation allows the system to fully utilize carrier-owned bandwidth while maintaining standardized processing methods.
2Productivity
If non-standard bandwidth requests are approved, then bandwidth utilization is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent changes the key parameter from fixed standardized bandwidth to variable actual carrier bandwidth. By using the carrier's specific bandwidth amount as the basis for PRB calculation, the system accommodates any bandwidth size without requiring non-standard configurations. This parameter change eliminates the need for complex approval processes and costly chipset modifications while fully utilizing available bandwidth.
3Ease of operation
If standardized bandwidth tables are used, then ease of operation is improved, but loss of carrier-controlled bandwidth increases
Solution Approach 1:
The patent segments the PRB assignment process into two independent parts: (1) determining the carrier's specific bandwidth amount, and (2) calculating PRBs based on this actual bandwidth. This segmentation allows the system to operate with standardized procedures while avoiding waste by using the precise carrier bandwidth value rather than forcing fit to standardized bandwidth levels.
4Speed
If carrier aggregation is implemented to increase speeds, then communication speed is improved, but device complexity and operation complexity increase
Solution Approach 1:
The patent extracts and utilizes the full carrier-controlled bandwidth directly for PRB assignment, removing the need for carrier aggregation. By calculating PRBs based on the actual carrier bandwidth amount rather than standardized bandwidths, the system achieves high communication speeds using a single contiguous bandwidth block, thereby eliminating the complexity of aggregating multiple carriers.
Data Source
AI summary
Systems and methods are provided for dynamically assigning physical resource blocks (PRBs) based on available bandwidth. At least a first amount of bandwidth that is carrier controlled is determined. A standardized bandwidth that is greater than the first amount of bandwidth is determined. A bandwidth differential is determined as the difference between he standardized bandwidth and the first amount of bandwidth. Then, PRBs are assigned corresponding to the first amount of bandwidth while zero PRBs are assigned to the bandwidth differential.