Wireless communication method and apparatus implemented in NSTRMLD

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By sending control frames and adjusting the CCA-ED threshold in wireless communication, the problem of media synchronization loss in multi-link devices is solved, achieving effective media access recovery and improved transmission efficiency.

CN115942448BActive Publication Date: 2026-07-14MEDIATEK SINGAPORE PTE LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: MEDIATEK SINGAPORE PTE LTD
Filing Date: 2022-09-29
Publication Date: 2026-07-14

AI Technical Summary

Technical Problem

In wireless communication, multi-link devices that do not operate simultaneously on the transmit and receive link pair may lose medium synchronization due to interference, making it impossible to effectively update the network allocation vector. This results in virtual channel sensing failure and medium synchronization delay, affecting transmission efficiency.

Method used

By sending a control frame or trigger frame as the initial frame when the medium synchronization delay timer is non-zero, channel access recovery is performed using the modified CCA-ED threshold, medium synchronization loss is determined and the timer is reset, or delay information is carried in the medium synchronization parameter settings, and the ED threshold is adjusted to detect channel conditions.

Benefits of technology

It achieves effective media access recovery in the event of media synchronization loss, avoids channel collisions and synchronization delays, and improves transmission efficiency.

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Abstract

A method of wireless communication and an apparatus implemented in a NSTR MLD are provided. The method includes obtaining, by a station (STA) affiliated with a first non-simultaneous transmit and receive (NSTR) multi-link device (MLD), a transmission opportunity (TXOP) on a first link of a NSTR link pair as a TXOP initiator while a first medium synchronization delay MediumSyncDelay timer of the STA is non-zero; and transmitting, by the STA, a control frame on the first link to an intended TXOP responder as an initial frame in the TXOP in response to the first medium synchronization delay MediumSyncDelay timer being non-zero.

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