Wireless Access Point Aggressive Interference Mitigation
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Solution Overview
Problem
Communication systems, such as LTE networks, often interfere with other systems like WiFi when operating in unlicensed frequency bands due to differing resource allocation policies, leading to aggressive occupation of RF resources and interference.
Innovation Solution
A communication system with a wireless access point (WAP) and communications processor that detects aggressive behavior from other systems, estimates successful communication rates, and switches to contention-free access modes to mitigate interference, allowing coexistence by directing user equipment (UEs) to operate without regard to other networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If LTE communication systems operate in unlicensed frequency bands using government-licensed bandwidth allocation policies, then the LTE systems can efficiently utilize RF resources, but they will occupy all frequency resources and interfere with other communication systems like WiFi
Solution Approach 1:
The LTE system dynamically switches between licensed and unlicensed bands based on detected WiFi activity and communication needs. The system transitions from static licensed-band operation to dynamic multi-band operation, adjusting resource allocation in real-time to coexist with WiFi systems while maintaining efficient RF utilization
Solution Approach 2:
The communication system segments its operation into licensed-band mode and unlicensed-band mode, with the ability to divide traffic and resources across both bands. This segmentation allows LTE to operate efficiently in licensed bands while selectively accessing unlicensed bands when needed, reducing interference with WiFi
2Reliability
If LTE systems use sole use of their frequency bands without spectrum sharing policies, then they can ensure reliable communication, but they cannot coexist fairly with other systems in unlicensed spectrums
Solution Approach 1:
The LTE system is designed to operate universally across both licensed and unlicensed frequency bands, adapting its behavior based on the environment. It maintains reliable licensed-band communication while gaining the versatility to share unlicensed spectrums with WiFi systems using WiFi-aware protocols and dynamic resource allocation
Solution Approach 2:
The system changes operational parameters such as bandwidth allocation, modulation schemes, and resource block assignments based on whether it is operating in licensed or unlicensed bands. It adjusts transmission power, resource allocation patterns, and access protocols to maintain reliability in licensed bands while enabling fair sharing in unlicensed bands
3Productivity
If LTE networks invade unlicensed spectrums without spectrum sharing policies, then they can expand coverage and capacity, but they will occupy all frequency resources and disrupt other communication systems
Solution Approach 1:
The LTE system implements feedback mechanisms that monitor WiFi activity, channel occupancy, and interference levels in unlicensed bands. Based on this feedback, it dynamically adjusts its resource allocation, transmission power, and access strategies to expand coverage and capacity without aggressively occupying all RF resources, thereby coexisting with WiFi systems
Data Source
AI summary
Systems and methods presented herein provide for improving communications when encountering aggressive communication systems. In one embodiment, a communication system includes a WAP operable to link a UE to a communication network via a communication protocol and a communications processor operable with the WAP to detect another communication system operating within a range of the WAP, and to determine that the other communication system is operating via another communication protocol that differs from the communication protocol of the communication network based on UEs in range of the WAP. The UEs are operable to communicate via both communication protocols. The communications processor queries the UEs in the range of the WAP to determine which of the UEs are communicating via the other communication protocol, and estimates a rate of successful communication with the UE via the WAP based on a number of UEs communicating via the other communication protocol.