Cross-relay Interference Mitigation via Beamformed Test Signals
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Solution Overview
Problem
Wireless relays in communication networks face inefficiencies in mitigating cross-relay interference when serving wireless user devices, as existing methods such as frequency or time separation can be difficult and inefficient.
Innovation Solution
A wireless relay system that includes a network transceiver and a user transceiver, which detects and measures cross-relay interference levels by transmitting test signals to wireless access points, allowing the network transceiver to select the optimal access point based on signal strength and interference levels, thereby minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If wireless relays use frequency or time separation to mitigate cross-relay interference, then interference levels are reduced, but system efficiency and resource utilization deteriorate
Solution Approach 1:
The patent changes the parameter of spatial configuration by using beamforming to direct signals in specific directions. The network transceiver and user transceiver adjust their beamforming parameters to steer transmissions away from each other, thereby reducing cross-relay interference without requiring frequency or time separation, thus maintaining system efficiency
Solution Approach 2:
The patent implements dynamic selection between network transceiver and user transceiver based on real-time interference conditions. The system dynamically switches which transceiver handles uplink and downlink traffic depending on the detected cross-relay interference levels, allowing the system to adapt to changing conditions and maintain high efficiency while mitigating interference
2Object-affected harmful factors
If wireless relays use distance or shielding to separate node-B and R-UE, then cross-relay interference is reduced, but device complexity and deployment difficulty increase
Solution Approach 1:
The patent extracts the interference mitigation function from physical separation methods and implements it through signal processing. Instead of requiring physical distance or shielding between node-B and R-UE, the system uses beamforming and dynamic transceiver selection to virtually separate the transmission paths, thereby reducing interference without increasing deployment complexity
Solution Approach 2:
The patent introduces beamforming as an intermediary mechanism that mediates between the network transceiver and user transceiver. The beamforming algorithms act as a virtual intermediary that directs signals along specific paths, reducing cross-relay interference without requiring physical separation or additional shielding structures
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively mitigates cross-relay interference by dynamically selecting the best access point, improving data service delivery to wireless user devices and enhancing network performance.
Implementation Method 1
The network transceiver beamforms wireless test signals and wirelessly transmits the beamformed wireless test signals to the wireless access points
Data Source
AI summary
In a wireless communication relay, a network transceiver wirelessly detects wireless access points. The network transceiver beamforms wireless test signals and wirelessly transmits the beamformed wireless test signals to the wireless access points. A user transceiver in the relay wirelessly detects cross-relay interference levels when the network transceiver wirelessly transmits the beamformed wireless test signals to the wireless access points. The user transceiver transfers the cross-relay interference levels for the wireless access points to the network transceiver. The network transceiver selects one of the wireless access points based on the cross-relay interference levels for the wireless access points. The network transceiver wirelessly exchanges user data with the selected one of the wireless access points and exchanges the user data with the user transceiver. The user transceiver exchanges the user data with the network transceiver and wirelessly exchanges the user data with the wireless user devices.