Distributed Antenna System Interworking for Shared Radio Resource Allocation
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Solution Overview
Problem
There is a lack of a concrete method for interworking between a distributed antenna system (DAS) and a spectrum sharing system (SSS), which is necessary for optimizing radio resource allocations and managing radio resources effectively in environments where signal coverage is limited or weak.
Innovation Solution
A method is proposed for interworking between DAS and SSS, involving the transmission of DAS information to a management system entity (MSE), generation of interworking information, and allocation of shared radio resources by the MSE and system controller based on this information, allowing the DAS to operate effectively within the SSS framework.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a distributed antenna system (DAS) is integrated with a spectrum sharing system (SSS), then radio resource allocation efficiency is improved, but system complexity increases due to the need for information transmission and coordination between DAS node units and SSS controllers
Solution Approach 1:
A management system entity (MSE) is introduced as an intermediary between the DAS node units and the SSS system controller. The MSE receives DAS information from node units, generates interworking information, and transmits it to the system controller, thereby simplifying the overall system architecture and reducing direct coordination complexity between DAS and SSS components
Solution Approach 2:
The system is divided into distinct functional modules: DAS node units for local signal distribution, management system entities for information processing and coordination, and system controllers for resource allocation. This segmentation allows each component to operate independently while maintaining overall system efficiency through standardized information exchange protocols
2Adaptability or versatility
If DAS information is transmitted to the management system entity for interworking coordination, then integration between DAS and SSS is achieved, but information processing time and system latency increase
Solution Approach 1:
The management system entity pre-processes and stores DAS information and interworking parameters before actual resource allocation events occur. This preliminary preparation allows the system controller to make faster decisions during real-time resource allocation without requiring extensive information processing at the moment of allocation
Solution Approach 2:
The system uses standardized information formats and protocols to create copies of DAS information that can be efficiently processed and transmitted. The management system entity generates standardized interworking information packets that reduce processing time during transmission to the system controller
Data Source
AI summary
The disclosure provides a method of operating a distributed antenna system (DAS) interworking with a spectrum sharing system (SSS) including: transmitting, by a node unit of the DAS, DAS information to a management system entity (MSE); generating, by the MSE, linkage information based on the DAS information and radio service device (RSD) information received from at least one RSD of the SSS; transmitting, by the MSE, the interworking information to a system controller of the SSS; receiving, by the MSE, allocation information including a result of allocating shared radio resources to the DAS and the at least one RSD, respectively, according to the interworking information from the system controller; transmitting, by the MSE, the allocation information to the node unit; and operating, by the node unit, according to the allocation information.