Surrounding Beam Information Indication for Wireless Interference Reduction
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Solution Overview
Problem
Wireless communication networks face interference issues due to shared resources among multiple users, leading to degraded performance on both downlink and uplink transmissions, especially as demand for mobile broadband access increases and more devices access long-range and short-range networks.
Innovation Solution
User equipment (UE) and network entities collaborate to obtain and share measurement information about current and surrounding beams, generating and transmitting surrounding beam information to optimize beam usage, thereby reducing interference and enhancing throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple users share available network resources in wireless networks, then network capacity and user coverage are improved, but interference between transmissions increases and performance degrades
Solution Approach 1:
The system dynamically adjusts beam selection based on real-time measurements of surrounding beams. The UE continuously monitors multiple beams and adapts to changing channel conditions, allowing the network to maintain high capacity while dynamically avoiding interference through beam switching when interference levels change
Solution Approach 2:
The UE measures and reports channel quality indicators (CQI) for surrounding beams to the network. This feedback mechanism enables the network to identify interfering transmissions and switch to alternative beams with better quality, resolving the contradiction between maintaining network capacity and avoiding interference
2Productivity
If more user equipments access long-range and short-range wireless networks, then mobile broadband demand is met, but network congestion and interference grow
Solution Approach 1:
The system segments the wireless medium into multiple spatial beams. By dividing the network into distinct beam directions, multiple UEs can access the network simultaneously in different spatial directions without causing congestion. Each beam acts as an independent channel, allowing the network to support more users while maintaining performance
Solution Approach 2:
The invention introduces spatial dimension through beamforming technology. Instead of treating the wireless medium as a single shared resource, the system creates multiple spatial channels through different beam directions. This dimensional expansion allows more UEs to access the network simultaneously by utilizing different spatial paths, effectively reducing network congestion while meeting broadband demand
3Reliability
If beam switching is implemented to avoid interference, then transmission performance is improved, but system complexity increases
Solution Approach 1:
The system performs preliminary measurements of surrounding beams before switching is needed. The UE continuously measures and reports CQI for multiple candidate beams in advance, so when interference occurs, the network can immediately switch to a pre-evaluated alternative beam without complex real-time calculations, reducing system complexity while maintaining reliable transmission
Data Source
AI summary
In one aspect, a method of wireless communication includes obtaining, by a user equipment (UE), measurement information for a current beam and one or more surrounding beams. The method also includes generating, by the UE, surrounding beam information based on the measurement information. The method further includes outputting, by the UE, an indication of the surrounding beam information. Other aspects and features are also claimed and described.