RF Beam Switching Using Blocker Sensing for Reliable Links
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently detecting blockers in channels, leading to failed communications, retransmissions, and increased latency due to the lack of effective beam management strategies.
Innovation Solution
Implementing RF sensing to detect the presence of blockers in the direction of a first beam, allowing the selection of alternative beams for transmission to avoid communication failures, thereby reducing retransmissions and latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wireless communication systems transmit data without RF sensing, then the system complexity remains low, but communication reliability deteriorates due to failed transmissions caused by undetected blockers
Solution Approach 1:
The system performs RF sensing measurements before data transmission to detect the presence of blockers in advance. The network node determines whether to transmit based on preliminary sensing results, preventing failed transmissions before they occur. This preliminary detection action resolves the contradiction by ensuring reliable communication while maintaining manageable system complexity through a structured sensing-transmission decision framework.
2Reliability
If the system performs RF sensing measurements before transmission, then communication reliability improves by detecting blockers, but the time required for data transmission increases due to additional sensing steps
Solution Approach 1:
The system performs only essential RF sensing measurements focused on detecting blocker presence rather than comprehensive environmental scanning. The network node determines transmission suitability based on key sensing parameters, performing just enough measurement to make an informed decision. This partial action approach maintains high reliability while minimizing the time penalty associated with sensing.
3Productivity
If the network node transmits data without checking for blockers, then the transmission speed remains high, but the loss of information increases due to failed transmissions and retransmissions
Solution Approach 1:
The system uses RF sensing measurements as feedback to determine whether transmission conditions are suitable. The network node continuously monitors the channel environment and adjusts transmission decisions based on this feedback information. When blockers are detected, transmission is prevented or alternative actions are taken, eliminating data loss while maintaining effective transmission speed through informed decision-making.
4Adaptability or versatility
If the system uses multiple beams for transmission, then adaptability to different channel conditions improves, but the device complexity increases due to additional beam management requirements
Solution Approach 1:
The system segments the transmission problem by evaluating multiple candidate beams separately through RF sensing measurements. Each beam is assessed independently for blocker presence, and the network node selects the most suitable beam based on segment-by-segment evaluation results. This segmentation approach enables adaptable beam selection while managing complexity through a systematic, modular assessment process.
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
Enhances communication reliability by selecting optimal beams based on RF sensing, minimizing failed transmissions and reducing signaling overhead.
Implementation Method 1
obtaining an indication of a presence of a blocker in the channel, wherein the presence of the blocker is detected based on one or more sensing measurements in a direction of the first beam
Data Source
AI summary
Disclosed are techniques for wireless communication. In some aspects, a user equipment (UE) may determine a configuration of a first beam and one or more second beams for transmission or reception over a channel between the first network node and a second network node, wherein the one or more second beams are in different directions from the first beam. The UE may obtain an indication of a presence of a blocker in the channel, wherein the presence of the blocker is detected based on one or more sensing measurements in a direction of the first beam. The UE may transmit or receive over the channel on a beam selected from the one or more second beams based on the indication that the blocker is present in the channel.