Assessment Beam CCA for Multi-Beam Channel Occupancy
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Solution Overview
Problem
In high-frequency wireless communication systems, frequent beam switching for clear channel assessment (CCA) leads to excessive overheads and inefficiencies in channel occupancy, particularly in unlicensed spectrum communication.
Innovation Solution
Performing CCA through an assessment beam associated with multiple transmission beams, where the assessment beam determines the occupancy status of the associated transmission beams, allowing simultaneous data transmission within a maximum channel occupancy time (MCOT) and reducing the need for individual CCA on each beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual CCA is performed on each transmission beam, then channel occupancy status is accurately determined, but overhead and complexity increase significantly
Solution Approach 1:
The patent combines multiple transmission beams into a single beam group for unified CCA assessment. Instead of performing separate CCA on each transmission beam, the system performs one CCA operation on the aggregated beam group, thereby reducing overhead while maintaining accurate channel occupancy determination for all beams in the group.
Solution Approach 2:
The assessment beam serves multiple functions simultaneously: it performs channel occupancy detection and represents multiple transmission beams within the beam group. This multi-functional approach allows a single CCA operation to provide channel status information for several transmission beams, reducing overall system complexity.
2Adaptability or versatility
If frequent beam switching is performed for CCA, then channel assessment coverage is improved, but efficiency and productivity deteriorate
Solution Approach 1:
Multiple beams are merged into a single beam group that shares common CCA resources. This consolidation reduces the frequency of beam switching required for CCA operations while maintaining comprehensive channel assessment coverage across all beams in the group, thereby improving overall efficiency.
Solution Approach 2:
The system pre-configures beam groups and establishes assessment beam associations before actual data transmission. This preliminary organization allows the system to perform CCA on aggregated beams rather than switching between individual beams during operation, improving channel occupancy efficiency while maintaining assessment coverage.
Data Source
AI summary
A communication method, performed by a data transmission end, and including: performing clear channel assessment (CCA) through an assessment beam, wherein the assessment beam is associated with at least one transmission beam for transmitting data.