Unlicensed Channel Detection Mechanism for Multi-Beam Wireless Systems
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Solution Overview
Problem
Existing wireless communication systems face challenges in performing channel detection on multiple beams in unlicensed frequency bands, which is essential for ensuring fair coexistence among different radio access technologies.
Innovation Solution
A method and apparatus for detecting an unlicensed channel are provided, which include performing channel detection on a plurality of beams using either an independent detection mechanism or a joint detection mechanism. In the independent mechanism, each beam has independent channel detection parameters, while in the joint mechanism, the beams share at least one associated channel detection parameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a transmitter performs channel detection on multiple beams in unlicensed frequency bands, then data transmission capability is improved, but detection complexity increases
Solution Approach 1:
The patent divides the channel detection process into separate independent detection mechanisms for each beam. Each beam performs channel detection independently with its own detection parameters, allowing parallel processing and reducing overall detection complexity while maintaining multi-beam transmission capability.
Solution Approach 2:
The patent introduces a joint detection mechanism where a single detection process serves multiple beams simultaneously. This universal approach allows one detection mechanism to handle multiple beams, reducing the total number of detection operations needed while maintaining comprehensive channel assessment.
2Measurement precision
If independent channel detection parameters are used for each beam, then detection accuracy is improved, but system complexity increases
Solution Approach 1:
The patent provides dynamic selection between independent detection mechanism (with separate parameters per beam for high accuracy) and joint detection mechanism (with shared parameters for lower complexity). The system can adaptively choose the appropriate mechanism based on operational conditions, balancing accuracy requirements against system complexity constraints.
3Device complexity
If joint channel detection mechanism is used for multiple beams, then system complexity is reduced, but detection precision may deteriorate
Solution Approach 1:
The patent segments the detection parameters into beam-specific parameters and shared parameters. Even in the joint detection mechanism, certain parameters can remain beam-specific to maintain necessary precision for each beam while sharing common parameters to reduce overall system complexity.
Data Source
AI summary
A method for detecting an unlicensed channel is performed by a transmitter which performs a channel detection of unlicensed channel on a plurality of beams to be detected according to a channel detection mechanism of said beams. The channel detection mechanism includes an independent detection mechanism or a joint detection mechanism; in the independent detection mechanism, the channel detection parameter of each of said beams is independent; and in the joint detection mechanism, said beams have at least one associated channel detection parameter.