Distributed Antenna Interoperability for Shared Spectrum Allocation
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Solution Overview
Problem
There is a lack of a concrete method for controlling distributed antenna systems (DAS) in conjunction with spectrum sharing systems, leading to potential interference and inefficient radio resource allocation.
Innovation Solution
A method is provided for a spectrum sharing system that involves a system controller identifying interoperability between radio service devices and DAS nodes using identification information, and allocating shared radio resources based on this interoperability, considering radio access technologies, operation parameters, and geographic locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If spectrum sharing system operates without concrete DAS control method, then system complexity is reduced, but interference control and resource allocation efficiency deteriorate
Solution Approach 1:
The patent introduces a system controller as an intermediary component that mediates between the spectrum sharing system and DAS. This controller receives identification information from both radio service devices and DAS node units, determines interoperability relationships, and allocates shared radio resources accordingly. By adding this intermediary control layer, the system achieves reliable interference control and efficient resource allocation without significantly increasing overall system complexity.
2Productivity
If radio resources are allocated without considering interoperability, then allocation speed is improved, but resource utilization efficiency and interference minimization deteriorate
Solution Approach 1:
The patent implements preliminary action by obtaining identification information from radio service devices and DAS node units before performing resource allocation. The system controller uses this pre-obtained information to determine interoperability relationships in advance, allowing for optimized resource allocation that considers device compatibility. This preliminary determination of interoperability enables the system to allocate resources efficiently while minimizing interference, without requiring complex real-time analysis during the allocation process itself.
Data Source
AI summary
The present disclosure provides a method of allocating shared radio resources in a spectrum shared system (SSS), the method including: obtaining, by a system controller of the SSS, identification information from at least one radio service device of the SSS and a node unit of a distributed antenna system (DAS); determining, by the system controller of the SSS, whether the at least one radio service device interoperates with the DAS based on the identification information; and allocating, by the system controller of the SSS, the shared radio resources to the at least one radio service device and the DAS, respectively, based on a result of the determining of interoperating.