Distributed Antenna System Power Optimization
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Solution Overview
Problem
Conventional wireless systems employing distributed antenna systems do not optimize cell capacity based on real-time user requirements, leading to inefficiencies in network performance and increased multipath interference.
Innovation Solution
A method and system that dynamically optimize downlink transmission power in distributed antenna systems by collecting user equipment data on peak data rates, signal quality, and location to adjust antenna unit gains, allowing for independent power management of antenna units and carriers to enhance system performance and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission power of distributed antenna system is increased to enhance network capacity, then system performance is improved, but multipath interference increases
Solution Approach 1:
The patent applies local quality by enabling independent gain control for each antenna unit based on local conditions. The system collects user information from specific geographic locations and adjusts the gain of individual antenna units or groups thereof, allowing different parts of the distributed antenna system to operate at different power levels optimized for their local environment, thereby improving network capacity while controlling multipath interference in specific areas.
Solution Approach 2:
The patent implements dynamics by dynamically adjusting the gain of antenna units based on real-time user information. The system continuously collects data from user equipment including location, signal quality, and data rates, then adaptively varies transmission power to optimize performance. This dynamic adjustment allows the system to respond to changing conditions and balance network capacity enhancement with multipath interference reduction.
2Productivity
If transmission power is optimized based on real-time user requirements, then system performance is enhanced, but device complexity increases
Solution Approach 1:
The patent applies self-service by enabling the distributed antenna system to automatically optimize its own transmission power based on user feedback. The system collects user information including location, signal quality, and data rates, then autonomously adjusts antenna unit gains without requiring external manual intervention. This self-managing capability enhances system performance while avoiding the complexity of external control systems.
Solution Approach 2:
The patent implements feedback mechanisms by collecting user information from user equipment and using this data to adjust transmission power. The system monitors parameters such as signal quality, data rates, and user location, then feeds this information back to the power management algorithm which adjusts antenna gains accordingly. This closed-loop feedback system automates optimization and reduces the complexity of manual power management.
Data Source
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AI summary
An apparatus for a distributed antenna system (DAS) is configured to communicate with a plurality of remote antenna units to extend coverage for at least one base station. The apparatus comprises transceiver circuitry to receive downlink signals from the at least one base station for communications to the remote antenna units and to transmit uplink signals to the at least one base station based on signals received from the remote antenna units. Controller circuitry is operatively coupled to the remote antenna units and configured to control multiple transmissions of the downlink signals from the transceiver circuitry to the remote antenna units via a common downlink signal, including controlling downlink transmission power levels of the remote antenna units, using the common downlink signal and based, at least in part, on signal information received from at least one of the remote antenna units. The downlink signals are transmitted by the transceiver circuitry to multiple antenna units of the remote antenna units. The remote antenna units are to provide coverage within a service area of the distributed antenna system.