CN-122003895-A - BA mechanism deleting method, communication equipment, AP MLD and communication system

Abstract

The embodiment of the disclosure relates to a BA mechanism deleting method, communication equipment, AP MLD and a communication system. The BA mechanism deleting method comprises the steps that a first device determines a first wireless frame, wherein the first wireless frame is used for deleting a BA mechanism established between a non-AP MLD and a first AP MLD, the non-AP MLD roams from the first AP MLD to a second AP MLD, the first device is the non-AP MLD or the second AP MLD, the first wireless frame comprises first identification information, the first identification information comprises TID used by a service transmitted between the non-AP MLD and the first AP MLD, and the first wireless frame is sent to the second device.

Inventors

• DONG XIANDONG

Assignees

• 北京小米移动软件有限公司

Dates

Publication Date

20260508

Application Date

20240904

Claims (19)

1. A BA mechanism deletion method, comprising: The method comprises the steps that a first device determines a first wireless frame, wherein the first wireless frame is used for deleting a group acknowledgement (BA) mechanism established between a multi-link site device (non-AP (Multi-Access Point) MLD) and a multi-link access point device (AP) MLD, the non-AP MLD roams from a first AP MLD to a second AP MLD, and the first device is the non-AP MLD or the second AP MLD; The first wireless frame comprises first identification information, wherein the first identification information comprises a transmission identification TID used by a service transmitted between the non-AP MLD and the first AP MLD; and transmitting the first wireless frame to a second device.
2. The BA mechanism removal method of claim 1, wherein the first radio frame further comprises at least one of: The second identification information identifies whether the first equipment is an initiating terminal for establishing the BA mechanism; Third identification information identifying whether the BA mechanism is established between the non-AP MLD and the first AP MLD.
3. The BA mechanism deletion method as defined in claim 2, wherein, After the non-AP MLD roams from the first AP MLD to a second AP MLD, the first AP MLD sends parameter information of a BA mechanism established between the non-AP MLD and the first AP MLD to the second AP MLD; the parameter information includes at least one of TID, BA buffer size, and start sequence number starting sequence number.
4. The BA mechanism deletion method of claim 1, wherein the first device comprises the non-AP MLD and the second device comprises the second AP MLD, the method further comprising: The non-AP MLD receives downlink wireless frames sent by the first AP MLD and the second AP MLD, and the non-AP MLD sends the first wireless frames under at least one link between the non-AP MLD and the second AP MLD; And/or The non-AP MLD sends uplink wireless frames to the first AP MLD and the second AP MLD, and sends the first wireless frames under at least one link between the non-AP MLD and the second AP MLD, wherein the non-AP MLD is an initiating terminal of the BA mechanism.
5. The BA mechanism deletion method of claim 1, wherein the first device comprises the second AP MLD, the second device comprises the non-AP MLD, the method further comprising: The second AP MLD transmits a downlink wireless frame to the non-AP MLD, and the second AP MLD transmits the first wireless frame under at least one link with the non-AP MLD; And/or The second AP MLD receives the uplink radio frame transmitted by the non-AP MLD, and the second AP MLD transmits the first radio frame under at least one link with the non-AP MLD.
6. A BA mechanism deletion method, comprising: The method comprises the steps that a second device receives a first wireless frame sent by a first device, wherein the first wireless frame is used for deleting a BA mechanism established between a non-AP MLD and a first AP MLD, the non-AP MLD roams from the first AP MLD to a second AP MLD, and the second device is the non-AP MLD or the second AP MLD; The first radio frame includes first identification information including TID for traffic usage transmitted between the non-AP MLD and the first AP MLD.
7. The BA mechanism removal method of claim 6, wherein the first radio frame further comprises at least one of: The second identification information identifies whether the first equipment is an initiating terminal for establishing the BA mechanism; Third identification information identifying whether the BA mechanism is established between the non-AP MLD and the first AP MLD.
8. The BA mechanism deletion method of claim 6, wherein the first device comprises the non-AP MLD and the second device comprises the second AP MLD, the method further comprising: The second AP MLD sends a downlink wireless frame to the non-AP MLD, and the second AP MLD receives the first wireless frame under at least one link between the second AP MLD and the non-AP MLD; And/or The second AP MLD receives the uplink wireless frame sent by the non-AP MLD, and receives the first wireless frame under at least one link between the second AP MLD and the non-AP MLD, wherein the non-AP MLD is an initiating terminal of the BA mechanism.
9. The BA mechanism deletion method of claim 6, wherein the first device comprises the second AP MLD, the second device comprises the non-AP MLD, the method further comprising: The non-AP MLD receives the downlink wireless frame sent by the second AP MLD, and the non-AP MLD receives the first wireless frame under at least one link between the non-AP MLD and the second AP MLD; And/or The non-AP MLD transmits an uplink radio frame to the second AP MLD and the non-AP MLD receives the first radio frame under at least one link with the second AP MLD.
10. A BA mechanism deletion method, comprising: After the first AP MLD roams and switches to the second AP MLD, receiving a notification frame sent by the second AP MLD or the non-AP MLD, wherein the notification frame is used for deleting a BA mechanism established between the non-AP MLD and the first AP MLD; Or (b) In the process of establishing the BA mechanism by the first AP MLD and the non-AP MLD, a timeout field is carried in a BA establishment frame, the timeout field identifies the existence time of the BA mechanism, and after the existence time is over, the BA mechanism established between the non-AP MLD and the first AP MLD is deleted.
11. The BA mechanism deletion method of claim 10, further comprising: After the non-AP MLD roams from the first AP MLD to a second AP MLD, the first AP MLD sends parameter information of a BA mechanism established between the non-AP MLD and the first AP MLD to the second AP MLD; The parameter information includes at least one of TID, BA buffer size, starting sequence number.
12. A communication device, the communication device being a first device, the first device comprising: The system comprises a determining module, a determining module and a transmitting module, wherein the determining module is used for determining a first wireless frame, the first wireless frame is used for deleting a BA mechanism established between a non-AP MLD and a first AP MLD, the non-AP MLD roams from the first AP MLD to a second AP MLD, and the first equipment is the non-AP MLD or the second AP MLD; The first radio frame comprises first identification information, wherein the first identification information comprises TIDs used by traffic transmitted between the non-AP MLD and the first AP MLD; And the sending module is used for sending the first wireless frame to the second equipment.
13. A communication device, the communication device being a second device, the second device comprising: The system comprises a first receiving module, a second receiving module, a first receiving module and a second receiving module, wherein the first receiving module is used for receiving a first wireless frame sent by first equipment, and the first wireless frame is used for deleting a BA mechanism established between a non-AP MLD and a first AP MLD; The first radio frame includes first identification information including TID for traffic usage transmitted between the non-AP MLD and the first AP MLD.
14. An AP MLD, said AP MLD being a first AP MLD, characterized in that said first AP MLD comprises: The second receiving module is used for receiving a notification frame sent by the second AP MLD or the non-AP MLD after the non-AP MLD roams and switches to the second AP MLD, and the notification frame is used for deleting a BA mechanism established between the non-AP MLD and the first AP MLD; Or (b) And the deleting module is used for carrying a timeout field in a BA establishment frame in the process of establishing the BA mechanism with the non-AP MLD, wherein the timeout field identifies the existence duration of the BA mechanism, and deleting the BA mechanism established between the non-AP MLD and the first AP MLD after the existence duration is over.
15. A communication device, the communication device being a first device, comprising: One or more processors; wherein the first device is configured to perform the BA mechanism deletion method of any one of claims 1-5.
16. A communication device, the communication device being a second device, comprising: One or more processors; wherein the second device is configured to perform the BA mechanism deletion method of any one of claims 6 to 9.
17. An AP MLD, said AP MLD being a first AP MLD, comprising: One or more processors; Wherein the first AP MLD is configured to perform the BA mechanism deletion method of any one of claims 10 or 11.
18. A communication system comprising a communication device, an AP MLD, wherein the first device is configured to implement the BA mechanism deletion method of any one of claims 1 to 5, the second device is configured to implement the BA mechanism deletion method of any one of claims 6 to 9, and the first AP MLD is configured to implement the BA mechanism deletion method of any one of claims 10 or 11.
19. A storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the BA mechanism deletion method of any one of claims 1-5 or the BA mechanism deletion method of any one of claims 6-9, the first AP MLD configured to implement the BA mechanism deletion method of any one of claims 10 or 11.

Description

BA mechanism deleting method, communication equipment, AP MLD and communication system Technical Field The disclosure relates to the technical field of communication, and in particular relates to a BA mechanism deleting method, a communication device, an AP MLD and a communication system. Background Currently, wi-Fi technology is being investigated for example ultra high reliability (Ultra High Reliability, UHR), which is promising for improving reliability of wireless local area network (Wireless Local Area Networks, WLAN) connections, reducing latency, improving manageability, increasing throughput at different signal-to-noise ratio (Signal to Noise Ratio, SNR) levels, and reducing device-level power consumption, etc. In UHR, a Block Ack (BA) mechanism is further enhanced to guarantee the transmission requirement of low latency traffic. Disclosure of Invention The embodiment of the disclosure provides a BA mechanism deleting method, communication equipment, AP MLD and a communication system, so as to provide a further enhanced BA mechanism. In one aspect, an embodiment of the present disclosure provides a BA mechanism deletion method, where the method includes: The method comprises the steps that a first device determines a first wireless frame, wherein the first wireless frame is used for deleting a BA mechanism established between a non-AP MLD and a first AP MLD, the non-AP MLD roams from the first AP MLD to a second AP MLD, and the first device is the non-AP MLD or the second AP MLD; The first radio frame comprises first identification information, wherein the first identification information comprises TIDs used by traffic transmitted between the non-AP MLD and the first AP MLD; and transmitting the first wireless frame to a second device. On the other hand, the embodiment of the disclosure also provides a BA mechanism deleting method, which comprises the following steps: The method comprises the steps that a second device receives a first wireless frame sent by a first device, wherein the first wireless frame is used for deleting a BA mechanism established between a non-AP MLD and a first AP MLD, the non-AP MLD roams from the first AP MLD to a second AP MLD, and the second device is the non-AP MLD or the second AP MLD; The first radio frame includes first identification information including TID for traffic usage transmitted between the non-AP MLD and the first AP MLD. On the other hand, the embodiment of the disclosure also provides a BA mechanism deleting method, which comprises the following steps: After the first AP MLD roams and switches to the second AP MLD, receiving a notification frame sent by the second AP MLD or the non-AP MLD, wherein the notification frame is used for deleting a BA mechanism established between the non-AP MLD and the first AP MLD; Or (b) In the process of establishing the BA mechanism by the first AP MLD and the non-AP MLD, a timeout field is carried in a BA establishment frame, the timeout field identifies the existence time of the BA mechanism, and after the existence time is over, the BA mechanism established between the non-AP MLD and the first AP MLD is deleted. In another aspect, an embodiment of the present disclosure further provides a communication device, where the communication device is a first device, and the first device includes: The system comprises a determining module, a determining module and a transmitting module, wherein the determining module is used for determining a first wireless frame, the first wireless frame is used for deleting a BA mechanism established between a non-AP MLD and a first AP MLD, the non-AP MLD roams from the first AP MLD to a second AP MLD, and the first equipment is the non-AP MLD or the second AP MLD; The first radio frame comprises first identification information, wherein the first identification information comprises TIDs used by traffic transmitted between the non-AP MLD and the first AP MLD; And the sending module is used for sending the first wireless frame to the second equipment. In another aspect, an embodiment of the present disclosure further provides a communication device, where the communication device is a second device, and the second device includes: The system comprises a first receiving module, a second receiving module, a first receiving module and a second receiving module, wherein the first receiving module is used for receiving a first wireless frame sent by first equipment, and the first wireless frame is used for deleting a BA mechanism established between a non-AP MLD and a first AP MLD; The first radio frame includes first identification information including TID for traffic usage transmitted between the non-AP MLD and the first AP MLD. On the other hand, the embodiment of the present disclosure further provides an AP MLD, where the AP MLD is a first AP MLD, and the first AP MLD includes: The second receiving module is used for receiving a notification frame sent by the second AP MLD or the non-AP M