Communication Device Space Domain Channel Sensing
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Solution Overview
Problem
Current communication systems using unlicensed bands face challenges in achieving high communication performance due to the limited use of channel occupancy information beyond time domain data.
Innovation Solution
A communication device is configured to perform channel sensing in an unlicensed band and notify other devices of space domain, frequency domain, or code domain information as channel occupancy information upon successful sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only time domain information is notified as channel occupancy information, then the notification is simple, but high communication performance cannot be achieved
Solution Approach 1:
The patent extends channel occupancy information from only time domain to include space domain, frequency domain, and code domain dimensions. This multi-dimensional approach allows receiving devices to more accurately determine channel availability and reduce processing load by avoiding unnecessary sensing in occupied domains, thereby achieving high communication performance without excessive notification complexity.
2Productivity
If space domain, frequency domain, or code domain information is added as channel occupancy information, then communication performance is enhanced, but the amount of information to be processed increases
Solution Approach 1:
The patent enables receiving devices to autonomously determine channel availability by processing multi-dimensional channel occupancy information. The receiving device uses the space, frequency, and code domain information to self-assess whether channel sensing is necessary, reducing overall system processing load while maintaining high communication performance through intelligent, distributed decision-making.
Data Source
AI summary
A communication device includes a sensing unit that performs channel sensing in an unlicensed band, and a notification unit that notifies another communication device of space domain information, as channel occupancy information indicating that channel occupancy is performed when the sensing succeeds.