An access method, device, and apparatus for an unlicensed channel, and a storage medium

By enabling LBT (Listen-Before-Speak) detection through collaboration between the sender and receiver devices, this technology solves the technical problems in wireless communication in existing technologies, enables flexible switching of detection methods in different application scenarios, improves the accuracy of interference level detection in unlicensed channels, and reduces signaling overhead.

CN115053619BActive Publication Date: 2026-07-24BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
CN202180000196.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-01-08
Publication Date
2026-07-24
Estimated Expiration
2041-05-16

AI Technical Summary

Technical Problem

In wireless communication, the use of unlicensed spectrum has problems such as low accuracy of interference level detection and high signaling overhead, and it is difficult to achieve effective management, especially in the fair coexistence of different wireless access technologies.

Method used

The sender and receiver devices collaborate to perform Listen-Before-Speak (LBT) detection. The sender device determines the detection method based on the receiver device's HARQ-ACK feedback, auxiliary requests, termination requests, configuration signaling, or Media Access Layer (MAC) signaling/RRC signaling. Different LBT detection methods are used to improve detection accuracy and save signaling overhead.

Benefits of technology

It enables flexible switching of detection methods in different application scenarios, improves the accuracy of interference level detection in unlicensed channels, and reduces signaling overhead, thus meeting different detection needs.

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Abstract

The present disclosure provides a non-licensed channel access method, device, equipment and storage medium, the method comprises: determining the detection mode of listen before talk (LBT) detection of the non-licensed channel, the detection mode comprises a first mode or a second mode; wherein the first mode comprises that the sender equipment performs LBT detection to obtain a first detection result; the second mode comprises that the sender equipment performs LBT detection to obtain a first detection result, and obtains a second detection result of LBT detection of the receiver equipment; and performing detection on the non-licensed channel according to the determined detection mode. In the present disclosure, the sender equipment can use different ways to detect the non-licensed channel, that is, it can also use the first mode to detect the non-licensed channel, or use the second mode to detect the non-licensed channel. When the sender equipment uses the first mode, it can save signaling overhead, and when it uses the second mode, it can improve the detection accuracy of the interference level. The sender equipment switches between the two detection modes, which can use different detection modes in different application scenarios to meet different detection requirements.
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