IP Library › Granted Patent US 12666465
Granted Patent B2
US 12666465 · App. 18/388,949 · Granted Jun 23, 2026

Wireless communication method, station device, and access point device

Inventors: Pei Zhou (Dongguan, CN); Lei Huang (Singapore, SG)
Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
H04W74/0816H04L5/0053H04W74/0866
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Quick Facts
Patent No.
US 12666465
App. No.
18/388,949
Granted
Jun 23, 2026
Kind
B2
Abstract

Wireless communication methods, station devices, and access point devices are provides. The method includes: a first site receiving a multiple-user request-to-send transmission opportunity sharing trigger frame (MU-RTS-TXS TF); and the first site configuring, according to time information and/or first indication information indicated by a duration field in the MU-RTS-TXS TF, time information indicated by a duration field in a clear-to-send (CTS) frame, the first indication information being used to indicate time information of an access point sharing part of an obtained transmission opportunity (TXOP) to at least one site.

Claims (64)

1 . A method for wireless communication, comprising:

receiving, by a first station (STA), a Multiple-User Request-To-Send Transmission Opportunity Sharing Trigger Frame (MU-RTS-TXS TF) sent by an access point (AP), wherein a duration field of the MU-RTS-TXS TF is set by the AP with a manner of fixed multiple protection settings among single protection settings and multiple protection settings in a triggered Transmission Opportunity (TXOP) sharing, and a value D of the duration field of the MU-RTS-TXS TF is set by a following method:

when T TXOP =0 and T END-NAV =0, then D=T SINGLE-MSDU −T PPDU ;

otherwise, when T TXOP =0 and T END-NAV >0, then D=max (0, T END-NAV −T PPDU );

otherwise, when T END-NAV =0, then min (T PENDING , T TXOP −T PPDU )≤D≤T TXOP −T PPDU ;

otherwise, T END-NAV −T PPDU ≤D≤T TXOP-REMAINING −T PPDU ,

wherein the T TXOP represents time given by dot11EDCATableTXOPLimit for an Access Category (AC), the T END-NAV represents remaining duration of any network allocation vector (NAV) set by the TXOP holder, the T SINGLE-MSDU represents estimated time required for transmission of allowed frame exchange sequence defined in TXOP limits, the T PPDU represents time required for transmission of a current Physical Layer Protocol Data Unit (PPDU), the T PENDING represents estimated time required for allowed transmission in triggered TXOP sharing procedure, and the T TXOP-REMAINING represents remaining time in the T TXOP ; and

setting directly, by the first STA, time information indicated by a duration field in a Clear-To-Send (CTS) frame according to time information indicated by the duration field in the MU-RTS-TXS TF.

2 . The method of claim 1 , wherein the time information indicated by the duration field in the MU-RTS-TXS TF is determined according to at least one of:

an estimated time required for an allowed transmission in a triggered TXOP sharing procedure; or

an estimated time required for transmission of an allowed frame exchange sequence defined in TXOP limits.

3 . The method of claim 2 , wherein setting directly, by the first STA, the time information indicated by the duration field in the CTS frame according to the time information indicated by the duration field in the MU-RTS-TXS TF comprises:

acquiring, by the first STA, first time information from the duration field of the MU-RTS-TXS TF; and

setting the time information indicated by the duration field in the CTS frame according to the first time information and a first time duration, wherein the first time duration is determined according to a time duration from an end time of a PPDU carrying the MU-RTS-TXS TF to an end time of a PPDU carrying the CTS frame.

4 . The method of claim 3 , wherein setting the time information indicated by the duration field in the CTS frame according to the first time information and the first time duration comprises:

setting, by the first STA, time information obtained by subtracting the first time duration from the first time information as the time information indicated by the duration field in the CTS frame.

5 . The method of claim 2 , wherein setting directly, by the first STA, the time information indicated by the duration field in the CTS frame according to the time information indicated by the duration field in the MU-RTS-TXS TF comprises:

setting, by the first STA, the time information indicated by the duration field in the CTS frame according to the time information indicated by the duration field in the MU-RTS-TXS TF, in case that the AP sets the duration field of the MU-RTS-TXS TF with a manner of multiple protection settings.

6 . The method of claim 1 , wherein the duration field of the MU-RTS-TXS TF is set as a total time duration information shared by the AP with the at least one STA.

7 . The method of claim 6 , wherein setting directly, by the first STA, the time information indicated by the duration field in the CTS frame according to the time information indicated by the duration field in the MU-RTS-TXS TF comprises:

acquiring, by the first STA, second time information from the duration field of the MU-RTS-TXS TF; and

determining the time information indicated by the duration field in the CTS frame according to the second time information and a first time duration, wherein the first time duration is determined according to a time duration from an end time of a Physical Layer Protocol Data Unit (PPDU) carrying the MU-RTS-TXS TF to an end time of a PPDU carrying the CTS frame.

8 . The method of claim 7 , wherein determining the time information indicated by the duration field in the CTS frame according to the second time information and the first time duration comprises:

setting, by the first STA, time information obtained by subtracting the first time duration from the second time information as the time information indicated by the duration field in the CTS frame.

9 . A station (STA) device, comprising:

a memory, configured to store a computer program; and

a processor, configured to call and run the computer program stored in the memory to perform a method for wireless communication comprising:

receiving a Multiple-User-Request-To-Send-Transmission Opportunity Sharing Trigger Frame (MU-RTS-TXS TF) sent by an access point (AP) device, wherein a duration field of the MU-RTS-TXS TF is set by the AP with a manner of fixed multiple protection settings among single protection settings and multiple protection settings in a triggered Transmission Opportunity (TXOP) sharing, and a value D of the duration field of the MU-RTS-TXS TF is set by a following method:

when T TXOP =0 and T END-NAV =0, then D=T SINGLE-MSDU −T PPDU ;

otherwise, when T TXOP =0 and T END-NAV >0, then D=max (0, T END-NAV −T PPDU );

otherwise, when T END-NAV =0, then min (T PENDING , T TXOP −T PPDU )≤D≤T TXOP −T PPDU ;

otherwise, T END-NAV −T PPDU ≤D≤T TXOP-REMAINING −T PPDU ;

wherein the T TXOP represents time given by dot11EDCATableTXOPLimit for an Access Category (AC), the T END-NAV represents remaining duration of any network allocation vector (NAV) set by the TXOP holder, the T SINGLE-MSDU represents estimated time required for transmission of allowed frame exchange sequence defined in TXOP limits, the T PPDU represents time required for transmission of a current Physical Layer Protocol Data Unit (PPDU), the T PENDING represents estimated time required for allowed transmission in triggered TXOP sharing procedure, and the T TXOP-REMAINING represents remaining time in the T TXOP ; and

setting directly time information indicated by a duration field in a Clear-To-Send (CTS) frame according to a time information indicated by the duration field in the MU-RTS-TXS TF.

10 . The STA device of claim 9 , wherein the time information indicated by the duration field in the MU-RTS-TXS TF is determined according to at least one of:

an estimated time required for an allowed transmission in a triggered TXOP sharing procedure; or

an estimated time required for transmission of an allowed frame exchange sequence defined in TXOP limits.

11 . The STA device of claim 10 , wherein setting directly the time information indicated by the duration field in the CTS frame according to the time information indicated by the duration field in the MU-RTS-TXS TF comprises:

acquiring first time information from the duration field of the MU-RTS-TXS TF; and

setting the time information indicated by the duration field in the CTS frame according to the first time information and a first time duration, wherein the first time duration is determined according to a time duration from an end time of a PPDU carrying the MU-RTS-TXS TF to an end time of a PPDU carrying the CTS frame.

12 . The STA device of claim 11 , wherein setting the time information indicated by the duration field in the CTS frame according to the first time information and the first time duration comprises:

setting time information obtained by subtracting the first time duration from the first time information as the time information indicated by the duration field in the CTS frame.

13 . The STA device of claim 10 , wherein setting directly the time information indicated by the duration field in the CTS frame according to the time information indicated by the duration field in the MU-RTS-TXS TF comprises:

setting the time information indicated by the duration field in the CTS frame according to the time information indicated by the duration field in the MU-RTS-TXS TF, in case that the AP device sets the duration field of the MU-RTS-TXS TF with a manner of multiple protection settings.

14 . The STA device of claim 9 , wherein the duration field of the MU-RTS-TXS TF is set as a total time duration information shared by the AP device with the at least one STA device.

15 . The STA device of claim 14 , wherein setting directly the time information indicated by the duration field in the CTS frame according to the time information indicated by the duration field in the MU-RTS-TXS TF comprises:

acquiring second time information from the duration field of the MU-RTS-TXS TF; and

determining the time information indicated by the duration field in the CTS frame according to the second time information and a first time duration, wherein the first time duration is determined according to a time duration from an end time of a Physical Layer Protocol Data Unit (PPDU) carrying the MU-RTS-TXS TF to an end time of a PPDU carrying the CTS frame.

16 . The STA device of claim 15 , wherein determining the time information indicated by the duration field in the CTS frame according to the second time information and the first time duration comprises:

setting time information obtained by subtracting the first time duration from the second time information as the time information indicated by the duration field in the CTS frame.

17 . An access point (AP) device, comprising:

a memory, configured to store a computer program; and

a processor, configured to call and run the computer program stored in the memory to perform a method for wireless communication comprising:

sending a Multiple-User Request-To-Send Transmission Opportunity Sharing Trigger Frame (MU-RTS-TXS TF) to at least one station (STA), wherein time information indicated by a duration field in the MU-RTS-TXS TF is used by the at least one STA to set directly time information indicated by a duration field in a Clear-To-Send (CTS) frame, wherein the duration field of the MU-RTS-TXS TF is set by the AP with a manner of fixed multiple protection settings among single protection settings and multiple protection settings in a triggered Transmission Opportunity (TXOP) sharing, and a value D of the duration field of the MU-RTS-TXS TF is set by a following method:

when T TXOP =0 and T END-NAV =0, then D=T SINGLE-MSDU −T PPDU ;

otherwise, when T TXOP =0 and T END-NAV >0, then D=max (0, T END-NAV −T PPDU );

otherwise, when T END-NAV =0, then min (T PENDING , T TXOP −T PPDU )≤D≤T TXOP −T PPDU ;

otherwise, T END-NAV −T PPDU ≤D≤T TXOP-REMAINING −T PPDU ,

wherein the T TXOP represents time given by dot11EDCATableTXOPLimit for an Access Category (AC), the T END-NAV represents remaining duration of any network allocation vector (NAV) set by the TXOP holder, the T SINGLE-MSDU represents estimated time required for transmission of allowed frame exchange sequence defined in TXOP limits, the T PPDU represents time required for transmission of a current Physical Layer Protocol Data Unit (PPDU), the T PENDING represents estimated time required for allowed transmission in triggered TXOP sharing procedure, and the T TXOP -REMAINING represents remaining time in the T TXOP .

18 . The AP device of claim 17 , wherein the time information indicated by the duration field in the MU-RTS-TXS TF is determined according to at least one of:

an estimated time required for an allowed transmission in a triggered TXOP sharing procedure; or

an estimated time required for transmission of an allowed frame exchange sequence defined in TXOP limits.

19 . The AP device of claim 18 , wherein first time information is acquired by the first STA from the duration field of the MU-RTS-TXS TF, and the time information indicated by the duration field in the CTS frame is set according to the first time information and a first time duration, wherein the first time duration is determined according to a time duration from an end time of a PPDU carrying the MU-RTS-TXS TF to an end time of a PPDU carrying the CTS frame.

20 . The AP device of claim 17 , wherein the duration field of the MU-RTS-TXS TF is set as a total time duration information shared by the AP with the at least one STA.