KR-20260063001-A - Communication method and communication device

Abstract

The present application provides a communication method. This method may be applied to WLAN systems supporting 802.11 series protocols, such as, for example, 802.11be, Wi-Fi 7, or EHT, which are next-generation Wi-Fi protocols of IEEE 802.11ax, and, for example, Wi-Fi 8, which is a next-generation protocol of 802.11be; may be further applied to IEEE 802.11bf and its next-generation protocols; and may be further applied to UWB-based wireless personal area network systems, sensing systems, etc. In a scenario where multiple link devices participate in a sensing measurement by proxy, the method comprises a sensing initiator by proxy transmitting a request message to a sensing responder by proxy to request the setup of a sensing measurement by proxy. This request message includes first instruction information indicating a link to which the first sensing responder is mapped. The request message conveys information indicating a link to set up a sensing measurement by proxy in a scenario where multiple link devices participate in sensing by proxy.

Inventors

• 탕 주큉
• 후앙 레이
• 두 루이
• 나렌 게릴레
• 한 시아오

Assignees

• 후아웨이 테크놀러지 컴퍼니 리미티드

Dates

Publication Date

20260507

Application Date

20240905

Priority Date

20230928

Claims (20)

1. In terms of communication methods, A step of generating a request message by a first multi-link device (MLD)—the request message is used to request the establishment of a sensing (SBP) measurement by a proxy, the request message includes first instruction information, and the first instruction information indicates a link to which a first sensing responder is mapped—and, The method comprising the step of transmitting the request message to the second MLD by the first MLD. Communication method.
2. In paragraph 1, The above request message includes information about at least one sensing responder and at least one first instruction information corresponding to each of the at least one sensing responder, wherein the first sensing responder is one of the at least one sensing responders, and the first instruction information is the first instruction information corresponding to the first sensing responder among the at least one first instruction information. Communication method.
3. In paragraph 2, The method further comprises the step of receiving a response message from the second MLD by the first MLD, wherein the response message includes information about a sensing responder participating in the SBP measurement and second instruction information, and the second instruction information indicates a link to which the sensing responder participating in the SBP measurement is mapped. Communication method.
4. In paragraph 3, The above response message includes a parameter indicating that the above response message conveys the above second instruction information, Communication method.
5. In paragraph 3 or 4, The above response message includes information about a first availability window, and the information about the first availability window includes information about an availability window corresponding to a first link, and Information regarding the availability window corresponding to the first link includes an identifier of the first link, Communication method.
6. In paragraph 1, The above first instruction information further directs a link to which a sensing responder participating in the SBP measurement is mapped in addition to the above first responder, and the above first sensing responder is one of the sensing responders participating in the SBP measurement, Communication method.
7. In paragraph 6, The method further comprises the step of receiving a response message from the second MLD by the first MLD, wherein the response message includes information about at least one link, and the at least one link is part or all of the link indicated by the first instruction information. Communication method.
8. In any one of paragraphs 1 through 7, The first indication information comprises a first control field and one or both of a mandatory link indication field and a preferred link indication field, wherein the first control field comprises information for the mandatory link indication field and information for the preferred link indication field, wherein the mandatory link indication field indicates a mandatory link for the first sensing responder and the preferred link indication field indicates a preferred link for the first sensing responder. Communication method.
9. In paragraph 8, The first control field comprises information indicating whether the first instruction information conveys the required link instruction field, and/or information indicating whether the first instruction information conveys the preferred link instruction field. Communication method.
10. In Article 8 or 9, The first control field, and one or both of the required link indication field and the preferred link indication field are transmitted in the SBP parameter element of the request message, or The first control field is transmitted in the SBP control parameter of the request message, and one or both of the required link indicator field and the preferred link indicator field are transmitted in the SBP parameter element of the request message. Communication method.
11. In any one of paragraphs 1 through 7, The first instruction information comprises a second control field, and one or both of a link identifier field and a required instruction field, wherein the second control field comprises information regarding the link identifier field and/or information regarding the required instruction field, the link identifier field indicates at least one link provided by the first station for the first sensing responder, and the required instruction indicates whether each of the at least one link is required. Communication method.
12. In Paragraph 11, The second control field above includes information indicating whether the first instruction information transmits the link identifier field and/or information indicating whether the first instruction information transmits the required instruction field. Communication method.
13. In Article 11 or Article 12, The second control field, and one or both of the link identifier field and the required instruction field are transmitted in the SBP parameter element of the request message, and The second control field is transmitted in the SBP control parameter of the request message, and one or both of the link identifier field and the required instruction field are transmitted in the SBP parameter element of the request message. Communication method.
14. In any one of paragraphs 1 through 13, The above request message further includes information about a second availability window, and the information about the second availability window includes information about an availability window corresponding to a second link, and Information regarding the availability window corresponding to the second link includes an identifier of the second link, Communication method.
15. In terms of communication methods, A step of receiving a request message from a first MLD by a second multi-link device (MLD)—the request message is used to request the establishment of a sensing (SBP) measurement by a proxy, the request message includes first instruction information, and the first instruction information indicates a link to which a first sensing responder is mapped—and, The step of parsing the request message by the above second MLD, Communication method.
16. In paragraph 15, The above request message includes information about the at least one sensing responder and at least one first instruction information corresponding to each of the at least one sensing responder, wherein the first sensing responder is one of the at least one sensing responders, and the first instruction information is the first instruction information corresponding to the first sensing responder among the at least one first instruction information. Communication method.
17. In Paragraph 16, A step of determining a link to which a sensing responder participating in the SBP and each sensing responder participating in the SBP are mapped, based on at least one first instruction information by the second MLD, and The method further comprises the step of transmitting a response message to the first MLD by the second MLD—the response message includes information about the sensing responder participating in the SBP measurement and second instruction information, and the second instruction information indicates a link to which the sensing responder participating in the SBP measurement is mapped. Communication method.
18. In Paragraph 17, The above response message includes a parameter indicating that the above response message conveys the above second instruction information, Communication method.
19. In paragraph 17 or 18, The above response message includes information about a first availability window, and the information about the first availability window includes information about an availability window corresponding to a first link, and Information regarding the availability window corresponding to the first link includes an identifier of the first link, Communication method.
20. In paragraph 15, The above first instruction information further directs a link to which a sensing responder participating in the SBP measurement is mapped in addition to the above first responder, and the above first sensing responder is one of the sensing responders participating in the SBP measurement, Communication method.

Description

Communication method and communication device This application claims priority to Chinese patent application No. 202311291954.8, titled “communication method and communication device,” filed with the National Intellectual Property Administration of China on September 28, 2023, the entirety of which is incorporated herein by reference. This application relates to the field of communication technology, and more specifically, to communication methods and communication devices. As Wireless Local Area Networks (WLANs) have evolved to date, 802.11, currently one of the mainstream wireless access standards, has been widely commercially applied over the past decade. 802.11bf is the next-generation wireless standard for WLAN sensing. WLAN sensing is the process by which a device with WLAN sensing capabilities determines the characteristics of a predetermined target (e.g., an object, animal, or person) based on wireless signals received in a given environment. These characteristics include the target's distance, direction, speed, movement, behavior, etc. In a scenario where one access point (AP) establishes a separate sensing relationship with at least two stations (STA), sensing measurements can be performed via a sensing by proxy (SBP) procedure. For example, a station requesting sensing by proxy (one of the stations) can directly obtain the sensing results of a sensing response station (the remaining stations) through the AP. One or both of the access points and stations participating in the SBP procedure may be multi-link devices supporting multiple links. The method of implementing SBP settings in the procedure where multiple link devices participate in sensing becomes an urgent problem that needs to be solved. The present application provides a communication method for establishing a sensing measurement by a proxy in a scenario where multiple link devices participate in sensing by a proxy. According to a first aspect, a communication method is provided. The method may be performed by a first multi-link device (MLD) or by a circuit configured in the first MLD. This is not limited to the present application. The first MLD may be an access point (AP) or a non-access point (non-AP). For ease of explanation, the following description uses an example in which the first MLD performs the method. A communication method comprises: a first multi-link device (MLD) generating a request message. The request message is used to request the establishment of a sensing by proxy (SBP) measurement, and the request message includes first instruction information, the first instruction information indicates the link to which the first sensing responder is mapped. The first MLD transmits the request message to a second MLD. The first MLD is a sensing by proxy initiator in the sensing by proxy (SBP) measurement, and the second MLD is a sensing by proxy responder in the sensing by proxy (SBP) measurement, and the first sensing responder is one of at least one device, wherein the sensing by proxy initiator requests the acquisition of a sensing result of at least one of the devices through the sensing by proxy responder. Based on the aforementioned technical solution, in a scenario where multiple link devices participate in proxy-based sensing measurements, the request message sent by the proxy-based sensing initiator to the proxy-based sensing responder to request the setup of proxy-based sensing measurements includes the link situation to which the first sensing responder is mapped, thereby enabling the proxy-based sensing responder to clearly understand the requirements of the proxy-based sensing initiator for each sensing responder link, and accordingly facilitates the setup of proxy-based sensing measurements and improves the efficiency of setting up proxy-based sensing measurements. In this way, proxy-based sensing measurements are set up in a scenario where multiple link devices participate in proxy-based sensing measurements. Referring to the first aspect, in a partial implementation of the first aspect, the request message includes information about at least one sensing responder and at least one first instruction information corresponding to each of the at least one sensing responder, the first sensing responder is one of the at least one sensing responder, and the first instruction information is the first instruction information corresponding to the first sensing responder in the at least one first instruction information. Based on the aforementioned technical solution, a request message transmitted by a proxy-based sensing initiator to a proxy-based sensing responder may further include information regarding at least one sensing responder, wherein the proxy-based sensing initiator expects that the proxy-based sensing responder will acquire the sensing result of at least one sensing responder, and since at least one first instruction information may indicate a link situation corresponding to each of the at least one sensing res