EP-4742577-A1 - LOW-LATENCY SERVICE TRANSMISSION METHOD, ACCESS POINT DEVICE, STATION DEVICE, AND COMMUNICATION SYSTEM

Abstract

Embodiments of the present application relate to a low-latency service transmission method, an access point device, a station device, and a communication system. The low-latency service transmission method comprises: determining a first radio frame, wherein the first radio frame indicates time information, and the time information identifies additional time information required by a receiving end of the first radio frame to decrypt the first radio frame; and sending the first radio frame. In this way, the receiving end receiving the first radio frame can reserve a time period corresponding to the additional time information to decrypt the first radio frame; thus, the transmission safety of the first radio frame is improved, and the receiving end cannot respond to function information of the first radio frame itself.

Inventors

• DONG, Xiandong

Assignees

• Beijing Xiaomi Mobile Software Co., Ltd.

Dates

Publication Date

20260513

Application Date

20230705

Claims (20)

1. A low-latency service transmission method, applied to an access point, the method comprising: determining a first radio frame, wherein the first radio frame indicates first identification information, the first identification information identifies duration information for peer-to-peer P2P communication of at least two stations; and transmitting the first radio frame.
2. The method according to claim 1, wherein the duration information comprises at least two of communication duration, start time, and end time of P2P communication for the stations.
3. The method according to claim 1 or 2, wherein the first radio frame carries a Restricted Target Wake Time R-TWT information element; the R-TWT information element comprises an R-TWT Traffic Info field; the R-TWT Traffic Info field comprises a Traffic Info Control subfield; the Traffic Info Control subfield comprises P2P communication information.
4. The method according to claim 3, wherein the P2P communication information comprises: traffic identifier TID information; or TID information and link bitmap information; the link bitmap information is set to a first parameter value, indicating that P2P communication is performed over a link corresponding to the TID information.
5. The method according to claim 4, wherein the R-TWT information element further comprises aligned information; the aligned information is set to a second parameter value, indicating that P2P communication is performed over an established P2P link.
6. The method according to claim 5, wherein time for communication of the access point and the station does not overlap with time corresponding to the duration information.
7. The method according to claim 1, further comprising: receiving a second radio frame sent by a first station, wherein the second radio frame indicates second identification information, the second identification information identifies request information for requesting a second station to perform P2P communication with the first station; forwarding the second radio frame to the second station; receiving a third radio frame sent by the second station, wherein the third radio frame indicates third identification information, the third identification information identifies response information to the request information; and forwarding the third radio frame to the first station.
8. The method according to claim 1, further comprising: determining a fourth radio frame, wherein the fourth radio frame comprises first transmit power information for P2P communication of a third station and a fourth station; a P2P link is established between the third station and the fourth station; and sending the fourth radio frame to a fifth station, to indicate the fifth station to perform P2P communication with a sixth station through second transmit power information; wherein a P2P link is established between the fifth station and the sixth station; the second transmit power information is different from the first transmit power.
9. The method according to claim 1, wherein a seventh station sends a Request to Send RTS frame to an eighth station; and performs P2P communication with the eighth station after receiving a Clear to Send CTS frame sent from the eighth station; wherein a P2P link is established between the seventh station and the eighth station.
10. The method according to claim 1, wherein the first radio frame comprises at least one of a beacon frame, a probe response frame, or an unsolicited probe response frame.
11. A low-latency service transmission method, applied to a first station, the method comprising: receiving a first radio frame, wherein the first radio frame indicates first identification information, the first identification information identifies duration information for peer-to-peer P2P communication of at least two stations, the first station is comprised in the at least two stations.
12. The method according to claim 11, wherein the duration information comprises at least two of communication duration, start time, and end time of P2P communication for the stations.
13. The method according to claim 11 or 12, wherein the first radio frame carries a Restricted Target Wake Time R-TWT information element; the R-TWT information element comprises an R-TWT Traffic Info field; the R-TWT Traffic Info field comprises a Traffic Info Control subfield; the Traffic Info Control subfield comprises P2P communication information.
14. The method according to claim 13, wherein the P2P communication information comprises: TID information; or TID information and link bitmap information; and the link bitmap information is set to a first parameter value, indicating that P2P communication is performed over a link corresponding to the TID information.
15. The method according to claim 14, wherein the R-TWT information element further comprises aligned information; and the aligned information is set to a second parameter value, indicating that P2P communication is performed over an established P2P link.
16. The method according to claim 15, wherein time for communication of an access point sending the first radio frame and the first station does not overlap with time corresponding to the duration information.
17. The method according to claim 16, further comprising: determining a second radio frame, wherein the second radio frame indicates second identification information, the second identification information identifies request information for requesting a second station to perform P2P communication with the first station; sending the second radio frame; and determining whether to perform P2P communication with the second station based on third identification information after receiving a third radio frame, wherein the third radio frame indicates the third identification information, the third identification information identifies response information to the request information; wherein the third radio frame is generated by the second station after receiving the second radio frame forwarded by the access point.
18. The method according to claim 11, further comprising: receiving a fourth radio frame, wherein the fourth radio frame comprises first transmit power information for P2P communication of a third station and a fourth station; a P2P link is established between the third station and the fourth station; the fourth radio frame indicates to perform P2P communication with a ninth station through second transmit power information; the second transmit power information is different from the first transmit power; and performing P2P communication with the ninth station through the second transmit power information according to the fourth radio frame; wherein a P2P link is established between the first station and the ninth station.
19. The method according to claim 11, further comprising: sending a RTS frame to a tenth station; and performing P2P communication with the tenth station after receiving a CTS frame sent by the tenth station; wherein a P2P link is established between the first station and the tenth station.
20. The method according to claim 11, wherein the first radio frame comprises at least one of a beacon frame, a probe response frame, or an unsolicited probe response frame.

Description

TECHNICAL FIELD This disclosure relates to the field of communication technology, and more particularly to a low-latency service transmission method, an access point, a station, and a communication system. BACKGROUND Peer-to-peer (P2P) communication transmits data without the need for an access point, avoiding delays caused by network congestion and further improving transmission efficiency. To further reduce the transmission latency of low-latency service data during data transmission, the transmission process needs to be optimized. SUMMARY Embodiments of this disclosure provide a low-latency service transmission method, an access point, a station, and a communication system, to provide a mechanism for improving the transmission latency of low-latency services. According to a first aspect of embodiments of this disclosure, a low-latency service transmission method is provided, the method including: determining a first radio frame, wherein the first radio frame indicates first identification information, the first identification information identifies duration information for P2P communication of at least two stations; andtransmitting the first radio frame. According to a second aspect of embodiments of the present disclosure, a low-latency service transmission method is provided, the method including: receiving a first radio frame, wherein the first radio frame indicates first identification information, the first identification information identifies duration information for P2P communication of at least two stations. According to a third aspect of embodiments of the present disclosure, an access point is provided, the access point includes: a radio frame determination module, configured to determine a first radio frame, wherein the first radio frame indicates first identification information, the first identification information identifies duration information for P2P communication of at least two stations; anda radio frame transmission module, configured to transmit the first radio frame. According to a fourth aspect of embodiments of the present disclosure, a station is provided, the station includes: a radio frame receiving module, configured to receive a first radio frame, wherein the first radio frame indicates first identification information, the first identification information identifies duration information for P2P communication of at least two reference stations, the station is included in the at least two reference stations. According to a fifth aspect of embodiments of this disclosure, an access point is provided, including: one or more processors;wherein, the access point is configured to perform the low-latency service transmission method described in the optional embodiments of the first aspect. According to a sixth aspect of embodiments of this disclosure, a station is provided, including: one or more processors;wherein, the station is configured to perform the low-latency service transmission method described in the optional embodiments of the second aspect. According to a seventh aspect of embodiments of this disclosure, a communication system is provided, including an access point and a station, wherein the access point is configured to implement the low-latency service transmission method provided in the first aspect, and the station is configured to implement the low-latency service transmission method described in the optional embodiments of the second aspect. According to an eighth aspect of embodiments of this disclosure, a storage medium is provided, storing instructions that, when executed on a communication device, cause the communication device to perform the low-latency service transmission method described in the optional embodiments of the first or second aspect. Additional aspects and advantages of embodiments of this disclosure will be set forth in part in the following description, and will be obvious from the description, or may be learned by practice of the disclosure. It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. BRIEF DESCRIPTION OF THE DRAWINGS To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following introduces the accompanying drawings required for describing the embodiments. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure. FIG. 1 is an example schematic diagram of the architecture of a communication system provided according to an embodiment of this disclosure.FIG. 2 is one of the example interaction schematic diagrams of a communication method provided according to an embodiment of this disclosure.FIG. 3A is one of the example flowchart schematic diagrams of a communication method provided according to an embodiment of this disclosure.FIG. 3B is another one of