Digital Capacity Centric Distributed Antenna System Dynamic Allocation
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Solution Overview
Problem
Current Distributed Antenna Systems (DAS) face challenges in dynamically managing capacity, integrating multiple wireless technologies, and locating mobile users indoors due to rigid capacity distribution and lack of GPS signals, which limits their ability to adapt to growing demand and specific service needs.
Innovation Solution
The Digital Capacity Centric DAS (DCC-DAS) system integrates multiple capacity resources, including Cellular 2G/3G/4G, public safety, and broadband resources, into a centralized management system with a BTS farm, Multiband & Technology Digital Interface (MTDI), Multi Sector Digital Hub (MSDH), and Remote Radio Units (RRUs), enabling flexible capacity allocation and location-based services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If capacity is evenly distributed across the entire building/campus area, then coverage is provided, but capacity cannot be dynamically reallocated to locations where it is currently needed
Solution Approach 1:
The patent implements dynamic capacity allocation by treating capacity as a common pool of resources that can be transferred to wherever is currently most needed, similar to queuing theory. The central pool of capacity takes into consideration various offload devices installed in the building when allocating capacity to various zones, enabling real-time adaptation without physical reinstallation.
Solution Approach 2:
The system integrates multiple wireless and broadband technologies (3G/4G, Small Cell, Wi-Fi) into one unified DAS system that provides individual frequency response, specific routing scheme, and power level to each technology, frequency sub-band, and operator, making the system universally adaptable to different capacity needs.
2Adaptability or versatility
If multiple wireless technologies are integrated into one DAS system, then capacity offloading is enabled, but providing individual frequency response and routing for each technology becomes complex
Solution Approach 1:
The system segments capacity resources by technology type, frequency sub-band, and operator, allowing each segment to have its own specific frequency response, routing scheme, and power level while being managed within a unified DAS architecture. This enables differentiated control for 3G/4G, Small Cell, and Wi-Fi technologies simultaneously.
Solution Approach 2:
The DAS acts as an intermediary system that integrates multiple wireless and broadband technologies, providing a unified interface while maintaining individual control parameters for each technology type, frequency sub-band, and operator through centralized management.
3Measurement precision
If GPS signals are used for location tracking, then accurate positioning is achieved, but GPS signals are not available inside buildings
Solution Approach 1:
The system uses the DAS infrastructure as an intermediary to enable location tracking indoors. By leveraging the distributed antenna system's ability to track signal origins and propagate user locations throughout the building, the system provides indoor positioning without requiring GPS signals.
Data Source
AI summary
Disclosed herein is an architecture for a Digital Capacity Centric Distributed Antenna System (DCC-DAS) that dynamically manages and distributes resources in different locations where there is demand for capacity. The DCC-DAS also allows for the routing of resources to other applications such as location finding devices, jamming devices, repeaters, etc.