Ultra-Wideband Distributed Antenna System for Wireless Signal Aggregation
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Solution Overview
Problem
Current distributed antenna systems (DAS) require costly dedicated transport media to communicate high-bandwidth analog RF signals or digitized representations between base transceiver stations (BTS) and remote antenna entities, limiting cost-effectiveness and scalability.
Innovation Solution
Implementing a distributed antenna system that uses ultra-wideband (UWB) signals to wirelessly transmit combined digital signals between remote antenna entities, eliminating the need for wired communication networks by converting non-UWB signals into UWB signals using signal conditioners, thereby extending coverage without the need for dedicated transport media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated transport medium (fiber optic cable) is used to transmit high-bandwidth analog RF signals or digitized representations between BTS and remote antenna entities, then communication reliability and signal quality are improved, but infrastructure cost and device complexity increase
Solution Approach 1:
The patent replaces the physical dedicated transport medium (fiber optic cable) with a wireless communication system using UWB signals. The signal conditioner converts non-UWB signals to UWB signals for wireless transmission between remote antenna entities, eliminating the need for physical cable infrastructure while maintaining communication functionality.
Solution Approach 2:
The wireless UWB communication system serves multiple functions: it transmits combined digital signals between remote antenna entities, extends cell coverage, and eliminates the need for separate dedicated transport media. The system can handle multiple communication channels simultaneously through the shared wireless medium.
2Length of moving object
If dedicated transport medium is deployed to extend DAS coverage, then service range is improved, but deployment cost and installation complexity increase
Solution Approach 1:
The patent substitutes wireless UWB signal transmission for physical cable deployment. The signal conditioner at each remote antenna entity converts signals to UWB format for wireless transmission to other RAEs, eliminating the need to physically install and maintain dedicated transport media across the service area.
Solution Approach 2:
The system transitions from two-dimensional cable routing (through walls and conduits) to three-dimensional wireless propagation through space. UWB signals can penetrate building structures and propagate through air, enabling coverage extension without physical cable installation constraints.
3Measurement precision
If high-bandwidth analog RF signals are transmitted through dedicated transport medium, then signal fidelity is improved, but bandwidth consumption and transmission cost increase
Solution Approach 1:
The patent extracts the essential information from high-bandwidth analog RF signals by converting them to combined digital signals. The signal conditioner digitizes and compresses the information, transmitting only the necessary data over the UWB wireless link rather than transmitting the full-bandwidth analog signal.
Solution Approach 2:
The system changes the signal parameters from high-bandwidth analog format to lower-bandwidth digital format. By converting to combined digital signals and utilizing UWB's wide frequency spectrum efficiently, the system maintains signal fidelity while reducing the bandwidth resources required for transmission.
Data Source
AI summary
A method and system for communicating an ultra-wideband signal carrying a combined digital signal that represents digital signals for multiple communication channels of a wireless communication system. A distributed antenna system includes multiple remote antenna entities. Each remote antenna entity may include an ultra-wideband transceiver for sending or receiving the ultra-wideband signal. The multiple remote antenna entities may be spaced apart within an indoor premises so as to extend cell coverage of a base transceiver station. The ultra-wideband signal may be transmitted in a forward-link direction towards one or more wireless communication devices or in a reverse-link direction towards the base transceiver station. An aggregator within a remote antenna entity may aggregate multiple combined digital signals so as to form an aggregated combined digital signal that may be transmitted in a reverse-link direction towards the base transceiver station.