User Aware Distributed Antenna System Signal Distribution
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Solution Overview
Problem
Existing distributed antenna systems (DAS) lack awareness of cellular user-antenna relationships, resulting in inefficient signal distribution and increased interference, as they transmit the same information to all antennas without distinguishing which users are connected to each antenna.
Innovation Solution
The implementation of User Aware Units that gather information to identify which cellular users each antenna can best communicate with, allowing for targeted signal distribution and reduced interference by determining the proximity of user equipment to specific antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same information is transmitted to all antennas in a distributed antenna system, then the system structure remains simple and easy to implement, but the throughput requirements of the distribution system increase and network interference is minimized
Solution Approach 1:
The patent implements user-aware signal distribution where each antenna receives customized information based on the specific users it serves. The system determines which users are connected to which antennas and transmits only the relevant signal information to each antenna, rather than broadcasting the same information to all antennas. This localizes the information distribution to match the spatial distribution of users, reducing overall throughput requirements while maintaining system effectiveness.
2Ease of manufacture
If the same information is transmitted to all antennas, then implementation is straightforward, but network interference increases due to redundant signal transmission
Solution Approach 1:
The system implements differentiated signal distribution where each antenna receives only the information relevant to its served users. By determining the relationship between users and antennas, the system transmits customized signal sets to each antenna rather than identical information to all antennas. This reduces redundant transmissions and minimizes network interference while maintaining implementation feasibility through automated user-antenna association tracking.
3Loss of energy
If user awareness is implemented to reduce throughput requirements, then energy efficiency improves, but device complexity increases due to user-antenna relationship tracking
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors and tracks which users are connected to which antennas. This feedback information is used to dynamically adjust the signal distribution, ensuring that each antenna receives only the information relevant to its current user set. The feedback loop automates the user-antenna relationship management, reducing the perceived complexity while enabling efficient, user-aware signal distribution that minimizes throughput requirements.
Data Source
AI summary
Distributed antenna systems (DAS) and methods are disclosed that are aware of cellular user/antenna relationships. The DAS systems and/or methods include or use one or more User Aware Units that provide the functionality of knowing (or, knowledge of) which cellular user(s) each antenna can communicate with (and vice versa). The User Aware Unit functions to gather information about the reception in each antenna in order to identify the cellular users that the respective antenna can communicate with or best communicate with compared to other cellular users.