Beam Reselection Using DTX Exclusion for Faster Recovery
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Solution Overview
Problem
Existing wireless communication systems face challenges in rapidly and efficiently performing beam (re-)selection, particularly in highly mobile environments such as those involving unmanned aerial vehicles, leading to reduced communication efficiency and reliability due to delayed beam failure recovery procedures.
Innovation Solution
A method and device for wireless communication that includes triggering a beam failure recovery (BFR) procedure upon detecting beam failure, utilizing a BFR timer and MAC CEs to facilitate rapid beam selection and recovery, allowing for continuous communication service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional beam failure recovery procedure is used, then beam selection is performed, but communication efficiency and reliability are reduced due to delayed recovery
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple beams and their corresponding reference signals before communication begins. When beam failure is detected, the system can immediately switch to an alternative pre-configured beam without waiting for time-consuming beam selection procedures, thus reducing recovery time and improving reliability
Solution Approach 2:
The patent implements feedback mechanisms where the first device monitors beam quality metrics (such as reference signal received power) and provides feedback about beam status to the second device. This enables timely detection of beam failure and triggers appropriate recovery actions, improving the system's ability to maintain reliable communication
2Productivity
If beam selection is performed in highly mobile environments, then communication is maintained, but beam failure occurs more frequently
Solution Approach 1:
The system pre-configures multiple candidate beams and their associated reference signals before mobility occurs. When a device enters a highly mobile environment, this pre-prepared beam list allows for rapid beam switching in response to changing conditions, maintaining communication efficiency while preparing for potential failures
Solution Approach 2:
The patent implements dynamic beam management where the system can adaptively adjust beam selection based on real-time channel conditions and device mobility. The beam failure detection and recovery mechanisms dynamically respond to changing environmental conditions, allowing the system to maintain efficient communication despite mobility-induced instability
Data Source
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AI summary
Provided are a method by which a first device performs wireless communication and an apparatus supporting same. The method may comprise the steps of: acquiring configuration information related to at least one beam; selecting a first beam from among the at least one beam; selecting a second beam excluding the first beam from among the at least one beam; and performing communication on the basis of the second beam. For example, the second beam may be selected by excluding the first beam on the basis of discontinuous transmission (DTX) related to the first beam.