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Wireless communication method using enhanced distributed channel access, and wireless communication terminal using same

專利號(hào)
US11516879B2
公開日期
2022-11-29
申請(qǐng)人
WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.; SK TELECOM CO., LTD.（KR Gyeonggi-do KR Seoul）
發(fā)明人
Woojin Ahn; Juhyung Son; Geonjung Ko; Jinsam Kwak
IPC分類
H04W80/02; H04W74/00; H04W84/12; H04W74/08; H04L5/00; H04W28/02; H04W40/24; H04W72/04
技術(shù)領(lǐng)域
edca,wireless,mu,terminal,cw,parameter,ppdu,ac,mpdu,backoff
地域： Gyeonggi-do

摘要

Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes a transceiver and a processor for processing a radio signal received through the transceiver or a radio signal to be transmitted through the transceiver. The processor accesses a channel according to according to a priority of data to be transmitted to the base communication terminal by the wireless communication terminal.

說明書

When the EDCA queue is empty and the backoff timer is 0, the wireless communication terminal may resume the backoff procedure at the slot boundary. At this time, the wireless communication terminal may maintain the CW value without modification. This is because it is not the case that the wireless communication terminal fails to transmit, and there is no need to double CW. Specifically, the wireless communication terminal may maintain all the state variables of the EDCAF except for the backoff timer. Also, when the EDCA queue is empty and the backoff timer is 0 again, the wireless communication terminal may start the backoff procedure again. In the embodiment of FIG. 26, when the EDCA queue of the wireless communication terminal for VO is empty, the backoff timer BO[VO] reaches 0. The wireless communication terminal obtains a random value of 10 within the CW CW[VO] corresponding to the VO while maintaining all other EDCAF state variables, and sets the backoff timer BO[VO] using 10.

FIG. 27 shows the operation of a wireless communication terminal when the EDCA queue of the wireless communication terminal according to another embodiment of the present invention is empty and the backoff timer is 0.

權(quán)利要求

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