Primary Channel Assignment for General Authorized Access Operators
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Solution Overview
Problem
The increasing demand for bandwidth in wireless communication systems exceeds the available shared frequency resources, particularly in General Authorized Access (GAA) operations like the 3.5 GHz band, where multiple operators compete for limited bandwidth, leading to inefficiencies and potential interference.
Innovation Solution
A method and apparatus that determine available bandwidth within a shared radio frequency band, allocate it into radio compatibility type-specific partitions based on the number of operators and their technologies, and assign primary channels to operators, maximizing bandwidth usage while minimizing interference by considering coverage overlaps and using graph theoretical approaches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple operators share the same frequency band, then bandwidth utilization is improved, but interference between operators increases
Solution Approach 1:
The patent segments the shared frequency band into multiple sub-bands and assigns different sub-bands to different operators based on their coverage areas and interference patterns. This segmentation allows multiple operators to operate simultaneously in the same frequency band while minimizing mutual interference through spatial and spectral separation.
2Productivity
If bandwidth is allocated to multiple operators, then system capacity is improved, but bandwidth availability per operator decreases
Solution Approach 1:
The patent implements dynamic bandwidth allocation where the amount of bandwidth assigned to each operator is not fixed but adjusts based on real-time conditions including coverage area size, interference levels, and traffic demand. This dynamic approach allows the system to maintain high overall capacity while ensuring each operator receives adequate bandwidth based on current operational needs.
3Productivity
If primary channels are assigned to maximize bandwidth usage, then spectral efficiency is improved, but channel assignment complexity increases
Solution Approach 1:
The patent transforms the complex channel assignment problem into a more manageable form by changing key parameters: it converts continuous frequency allocations into discrete channel assignments, and incorporates operator coverage area metrics as weighting factors in the assignment algorithm. These parameter changes simplify the computational complexity while maintaining high spectral efficiency through optimized channel distribution.
Data Source
AI summary
Described herein are aspects related to assigning primary channels in wireless communications. An amount of available bandwidth within a radio frequency band can be determined for shared access by a plurality of operators, where each operator operates a radio access network having one of a plurality of radio communication compatibility types, and where each radio communication compatibility type defines a set of one or more compatible radio access technologies. The amount of available bandwidth can be allocated into radio compatibility type-specific bandwidth partitions for each radio communication compatibility type based on a number of the plurality of radio communication compatibility types and a number of the plurality of operators corresponding to each radio communication compatibility type. A primary channel can be assigned within at least one of the radio compatibility type-specific bandwidth partitions to at least one operator of the number of the plurality of operators.