METHODS OF INFORMATION DISPLAY, COMMUNICATION BUTTONS, AND STORAGE MEDIA

Abstract

The invention relates to a method for indicating information, a communication node, and a storage medium. The method for indicating information includes: creating a first management frame, in which the first management frame carries information about the set of UHR capabilities supported by the access point of the MLD AP; and sending the first management frame over the first link. By this method, information about the set of UHR capabilities supported by the access point is carried in the first management frame so that the non-MLD AP can indicate whether the first management frame comes from a UHR multilink device or a non-ULHR multilink device by analyzing the corresponding field in the first management frame. Thus, the non-MLD AP can perform information interaction with the peer MLD AP using mutually supported UHR technologies, thereby improving the data transmission throughput of the multilink communication system.

Description

Information indication method, device, communication node and storage medium Technical Field

[0001] The present application relates to the field of wireless communication technologies, and in particular to an information indication method, device, communication node, and storage medium. Background Art

[0002] For a multi-link device (MLD), if all its attached stations are access points (APs), it is an access point multi-link device (AP MLD). If all its attached stations are non-AP stations (STAs), it is a non-AP multi-link device (Non-AP MLD). A non-AP multi-link device can communicate with an AP multi-link device over different links.

[0003] With the development of Ultra High Reliability (UHR) technology, UHR AP MLD is similar to the ultra-high throughput multi-link device defined in Wi-Fi 7, and also sends corresponding management frames on its working channel. However, for UHR non-AP MLD, it is impossible to determine whether the received management frame comes from an ultra-high reliability multi-link device or an ultra-high throughput multi-link device, and which ultra-high reliability capabilities the ultra-high reliability multi-link device supports. Therefore, how to indicate the information related to the ultra-high reliability capability set is a technical problem that needs to be solved urgently by those skilled in the art.

[0004] Summary of the Invention

[0005] Embodiments of the present application provide an information indication method, device, communication node, and storage medium.

[0006] In a first aspect, an embodiment of the present application provides an information indication method, applied to an access point multi-link device, the method comprising:

[0007] Generate a first management frame; wherein the first management frame includes ultra-high reliability capability set information supported by the access point;

[0008] The first management frame is sent through the first link.

[0009] In one embodiment, the first management frame further includes indication information, where the indication information is used to indicate whether the access points surrounding the current access point support the UHR function.

[0010] In one embodiment, it further includes:

[0011] receiving a second management frame through the first link or the second link; wherein the second management frame includes a UHR identifier of a target access point with an ultra-high reliability function among the surrounding access points, for obtaining ultra-high reliability capability set information supported by the target access point;

[0012] A third management frame is sent through the first link or the second link; wherein the third management frame includes ultra-high reliability capability set information supported by the target access point.

[0013] In one embodiment, the indication information is carried in at least one of the following fields:

[0014] NR field, RNR field, multilink element field, reconfiguration multilink element field and MBSSID field.

[0015] In one of the embodiments, the indication information is represented by a specific identifier or a combination of identifiers in at least one of the NR field, RNR field, multilink element field, reconfiguration multilink element field and MBSSID field.

[0016] In one embodiment, the ultra-high reliability capability set information is carried in at least one of the following fields:

[0017] The capability set field of the current link, the multilink element field, the reconfiguration multilink element field, and the MBSSID field.

[0018] In one embodiment, the ultra-high reliability capability set information includes at least one of the following:

[0019] Orthogonal frequency division multiple access collaboration, spatial multiplexing collaboration, beamforming collaboration, non-primary channel intervention, time division multiple access collaboration, target wake-up time collaboration, channel resource preemption technology, relay technology and joint transmission technology.

[0020] In one embodiment, the first management frame and the third management frame include at least one of the following:

[0021] Beacon frame, probe response frame, multilink probe response frame, ANQP response frame, association response frame, reassociation response frame, BTM request frame, link reconfiguration notification frame, link reconfiguration response frame, and multilink operation update response frame.

[0022] In a second aspect, an embodiment of the present application provides an information indication method, applied to a non-access point multi-link device, the method comprising:

[0023] receiving a first management frame through a first link; wherein the first management frame includes information about an ultra-high reliability capability set supported by the access point;

[0024] Information is exchanged with the local access point according to the ultra-high reliability capability set information.

[0025] In one embodiment, the first management frame further includes indication information, where the indication information is used to indicate whether access points surrounding the access point support the ultra-high reliability function.

[0026] In one embodiment, when the first management frame is a BTM request frame, the first management frame further includes ultra-high reliability capability set information supported by the access point recommended by the access point multi-link device.

[0027] In one embodiment, it further includes:

[0028] Sending a second management frame through the first link or the second link; wherein the second management frame includes a UHR identifier of a target access point with an ultra-high reliability function among the surrounding access points, for obtaining ultra-high reliability capability set information supported by the target access point;

[0029] A third management frame is received through the first link or the second link; wherein the third management frame includes ultra-high reliability capability set information supported by the target access point.

[0030] In one embodiment, the second management frame further includes ultra-high reliability capability set information supported by the current station in the non-access point multi-link device.

[0031] In one embodiment, the second management frame further includes ultra-high reliability capability set information supported by other stations in the non-access point multi-link device except the current station.

[0032] In one embodiment, the second management frame includes at least one of the following:

[0033] Probe request frame, multilink probe request frame, ANQP request frame, association request frame, reassociation request frame, link reconfiguration request frame, and multilink operation update request frame.

[0034] In one embodiment, it further includes:

[0035] A BTM response frame is sent through the first link; wherein the BTM response frame includes at least one of the following: ultra-high reliability capability set information supported by the target access point to be switched, and ultra-high reliability capability set information supported by other access points in the same access point multi-link device as the target access point.

[0036] In one embodiment, the indication information is carried in at least one of the following fields:

[0037] NR field, RNR field, multilink element field, reconfiguration multilink element field and MBSSID field.

[0038] In one embodiment, the ultra-high reliability capability set information includes at least one of the following:

[0039] Orthogonal frequency division multiple access collaboration, spatial multiplexing collaboration, beamforming collaboration, non-primary channel intervention, time division multiple access collaboration, target wake-up time collaboration, channel resource preemption technology, relay technology and joint transmission technology.

[0040] In one embodiment, the ultra-high reliability capability set information is carried in at least one of the following fields:

[0041] The capability set field of the current link, the multilink element field, the reconfiguration multilink element field, and the MBSSID field.

[0042] In one embodiment, the exchanging information with the local access point according to the ultra-high reliability capability set information includes:

[0043] According to the ultra-high reliability capability set information, information interaction is performed using a UHR technology that is commonly supported by the access point.

[0044] In a third aspect, an embodiment of the present application provides an information indication device integrated in an access point multi-link device, the device comprising:

[0045] A processing module, configured to generate a first management frame; wherein the first management frame includes information about an ultra-high reliability capability set supported by the access point;

[0046] A sending module is configured to send the first management frame through a first link.

[0047] In a fourth aspect, an embodiment of the present application provides an information indication device integrated in a non-access point multi-link device, the device comprising:

[0048] A receiving module, configured to receive a first management frame through a first link; wherein the first management frame includes ultra-high reliability capability set information supported by the access point;

[0049] A processing module is configured to perform information interaction with the local access point according to the ultra-high reliability capability set information.

[0050] In a fifth aspect, an embodiment of the present application provides a communication node, comprising: a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, it implements the information indication method provided in the first and second aspects of the embodiments of the present application.

[0051] In a sixth aspect, an embodiment of the present application provides a storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the information indication method provided in the first and second aspects of the embodiments of the present application is implemented.

[0052] The technical solution provided by the embodiments of the present application generates a first management frame and transmits the first management frame via a first link. By carrying information about the ultra-high reliability informational capability set supported by the access point in the transmitted first management frame, a non-access point multi-link device can determine whether the first management frame is from an ultra-high reliability multi-link device or an ultra-high throughput multi-link device by parsing a specific field in the first management frame. The device can then use the same ultra-high reliability technology to exchange information with the access point multi-link device at the opposite end, thereby improving the data transmission throughput of the multi-link communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] FIG1 is a flow chart of an information indication method according to an embodiment of the present application;

[0054] FIG2 is a schematic diagram of a structure of ultra-high reliability capability set information provided in an embodiment of the present application;

[0055] FIG3 is a schematic diagram of a structure of an extended RNR field provided in an embodiment of the present application;

[0056] FIG4 is a schematic diagram of a structure of an extended NR field provided in an embodiment of the present application;

[0057] FIG5 is another flow chart of the information indication method provided in an embodiment of the present application;

[0058] FIG6 is a schematic structural diagram of an information indication device provided in an embodiment of the present application;

[0059] FIG7 is another structural diagram of the information indicating device provided in an embodiment of the present application;

[0060] FIG8 is a schematic diagram of the structure of a communication node provided in an embodiment of the present application. DETAILED DESCRIPTION

[0061] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0062] To facilitate understanding by those skilled in the art, some concepts are introduced below:

[0063] Neighbor Report (NR) Field: The NR field contains information about nearby APs (or AP MLDs, hereinafter referred to as APs). It is typically used by a STA (or non-AP MLD, hereinafter referred to as STA) to send a query frame to a target AP to query information about nearby APs. The target AP then sends a response frame to the STA, providing feedback on the STA's information about the nearby APs. For example, a STA sends an Access Network Query Protocol (ANQP) query frame to an AP, and the AP sends an ANQP response frame back to the STA. Alternatively, in roaming or multi-AP load balancing scenarios, an AP proactively recommends information about nearby APs to a STA. The STA confirms this information and then sends a (re)association request to one of the recommended APs. For example, an AP sends a Basic Service Set (BSS) Transition Management (BTM) request frame to a STA, carrying the recommended AP information in the NR field. The STA then sends a BTM response frame containing information about the desired AP in the NR field, and subsequently sends an authentication frame and a (re)association frame to establish a connection with the target AP. The meaning of each field in the NR field is shown in Table 1 below:

[0064] Table 1

[0065] Reduced neighbor report (RNR) field: The RNR field contains information about other surrounding APs. In order to reduce the channel resource overhead caused by the field length, the RNR field is correspondingly cropped and modified based on the NR field, and only includes key information about surrounding APs, such as the working channel, service set identifier (SSID), BSSID information, etc. When a STA receives a management frame such as a beacon frame or a probe response frame sent by an AP carrying the RNR field, the STA can quickly discover other surrounding APs and then further detect on the channel where the target AP is located to obtain complete information about the AP, thereby reducing the time overhead of the STA blindly scanning the channel and detecting surrounding APs. The meaning of each field in the RNR field is shown in Table 2 below:

[0066] Table 2

[0067] Multilink Element Field: This field is widely used in the discovery and connection phases. For example, it is carried in the beacon, (multilink) probe request / response (Beacon, (ML) probe request / response) frame in the discovery phase, or in the (re)association request / response ((Re)association request / response) frame in the connection phase. It may include the Multilink Control (Multilink Control) field, which indicates whether other related information fields are carried, the Multilink Common Information field (Common Info), and each link information field (Link Info).

[0068] Multiple Basic Service Set Identifier (MBSSID) field: Multiple access points (APs) can be created on a single Wi-Fi radio link, each corresponding to a different BSSID. To reduce the channel resource overhead of each AP sending beacon frames and probe response frames, the 802.11 protocol introduces MBSSID technology. This technology combines beacon frames and probe response frames sent by multiple APs on the same radio into a single AP's beacon and probe response frames. This means that an AP's beacon and probe response frames carry information about other APs on the same radio, which is stored in the Multiple BSSID Element field. The MBSSID field can include an element identifier (element ID), element length (length), a maximum BSSID indicator (MaxBSSID Indicator), and optional subelements. Detailed information about other APs is stored in the Optional Subelements.

[0069] FIG1 is a flow chart of an information indication method provided in an embodiment of the present application. The method is applied to any access point in an access point multi-link device (i.e., AP MLD). The following embodiment is first described using the access point multi-link device as an example. As shown in FIG1 , the method may include:

[0070] S101. Generate a first management frame; wherein the first management frame includes information about a very high reliability capability set supported by the access point.

[0071] S102: Send a first management frame through a first link.

[0072] The access point may carry the ultra-high reliability capability set information it supports in the capability set field of the current link, and send it to the station (STA) in the opposite non-access point multi-link device via the current link (ie, the first link, identified by AP1).

[0073] Optionally, the first management frame may include at least one of the following: a beacon frame, a probe response frame, a multi-link probe response frame, an ANQP response frame, an association response frame, a reassociation response frame, a basic service set transfer management BTM request frame, a link reconfiguration notify frame, a link reconfiguration response frame, and a multi-link operation update response frame.

[0074] The ultra-high reliability (UHR) capability set information specifically indicates the UHR technology supported by this access point. As shown in Figure 2, it may include at least one of the following: co-ordination orthogonal frequency division multiple access (C-OFDMA), co-ordination spatial reuse (C-SR), co-ordination Beamforming (C-BF), non-primary channel access, co-ordination Time division multiple access (C-TDMA), co-ordination target wakeup time (C-TWT), channel resource preemption technology (Preemption), relay technology (Relay) and joint transmission technology (JT).

[0075] The technical solution provided by the embodiments of the present application generates a first management frame and transmits the first management frame via a first link. By carrying information about the ultra-high reliability capability set supported by the access point in the transmitted first management frame, a non-access point multi-link device can determine whether the first management frame is from an ultra-high reliability multi-link device or an ultra-high throughput multi-link device by parsing a specific field in the first management frame. The device can then use the same ultra-high reliability technology to exchange information with the access point multi-link device at the opposite end, thereby improving the data transmission throughput of the multi-link communication system.

[0076] In one embodiment, optionally, the first management frame further includes indication information, where the indication information is used to indicate whether access points around the access point support an ultra high reliability (UHR) function.

[0077] The surrounding access points may include other access points belonging to the same access point multi-link device as the current access point, or may include access points in other access point multi-link devices surrounding the current access point. Optionally, the indication information may be carried in at least one of the following fields: an NR field, an RNR field, a multi-link element field, a reconfiguration multi-link element field, and an MBSSID field.

[0078] Optionally, the indication information can be represented by a specific identifier or a combination of identifiers in the above-mentioned fields. For example, the indication information is represented by the reserved field in the above-mentioned NR field, RNR field, multilink element field, reconfiguration multilink element field or MBSSID field, or the indication information is jointly represented by redefining the existing fields in the above-mentioned NR field, RNR field, multilink element field, reconfiguration multilink element field or MBSSID field. Exemplarily, as shown in Figures 3-4, by extending the reserved field of the RNR field or the NR field, such as adding ultra-high reliability capability (UHR Capability) as indication information in the reserved field of the original RNR field, or adding Ultra high reliability as indication information in the reserved field of the original NR field, it is used to indicate whether the reported access point / link supports the UHR capability set.

[0079] Furthermore, after the access point multi-link device sends the first management frame via the first link, the non-access point multi-link device can discover surrounding access point multi-link devices or access points of other links in the access point multi-link device through the NR field, RNR field, multi-link element field, reconfiguration multi-link element field, or MBSSID field, and further distinguish these access points as traditional access points or access points supporting the UHR capability set based on the specific identifier (or identifier combination) of each access point. For access points supporting the UHR capability set (identified by AP2), the non-access point multi-link device can send a second management frame via the first link or via the second link where AP2 is located to obtain the ultra-high reliability capability set information supported by AP2, that is, to obtain which ultra-high reliability technologies AP2 specifically supports.

[0080] In one embodiment, optionally, an access point multi-link device receives a second management frame sent by a non-access point multi-link device via a first link or a second link where a target access point (e.g., AP2) is located; wherein the second management frame includes a UHR identifier of a target access point with ultra-high reliability functionality among surrounding access points, and the second management frame is used to obtain information about an ultra-high reliability capability set supported by the target access point. Optionally, the second management frame may include at least one of the following: a probe request frame, a multi-link probe request frame, an ANQP request frame, an association request frame, a reassociation request frame, a link reconfiguration request frame, and a multi-link operation update request frame.

[0081] Furthermore, the access point multi-link device sends a third management frame through the first link or the second link; wherein the third management frame includes the ultra-high reliability capability set information supported by the target access point. The third management frame can be understood as a response frame for the second management frame, which is used to feedback to the STA the ultra-high reliability capability set information supported by the requested target AP. For example, the third management frame can be a probe response frame, a multi-link probe response frame, an ANQP response frame, an association response frame, a reassociation response frame, a link reconfiguration response frame or a multi-link operation update response frame. Optionally, the above-mentioned ultra-high reliability capability set information may be included in the multi-link element field, the reconfiguration multi-link element field or the MBSSID field. For example, the above-mentioned ultra-high reliability capability set information is carried in the Link Info field in the multi-link element, or the above-mentioned ultra-high reliability capability set information is carried in the optional subelements (Optional Subelements) field in the MBSSID field.

[0082] It should be noted that when all links in the same access point multi-link device support the UHR function, the ultra-high reliability capability set supported by each link may be the same or different. For example, the ultra-high reliability capability set supported by link 1 in the access point multi-link device may include UHR technology 1, UHR technology 2 and UHR technology 3, and the ultra-high reliability capability set supported by link 2 may include UHR technology 3, UHR technology 4 and UHR technology 5. The specific one or more UHR technologies supported by the two may be different.

[0083] In this way, in a mixed deployment scenario of UHR AP MLDs and traditional access points (such as enhanced high throughput access points), by carrying indication information indicating whether the surrounding access points of the current access point support UHR functions in the first management frame, a non-access multi-link device can, after receiving the first management frame, learn whether the surrounding access points are traditional access points or UHR AP MLDs based on the indication information in the first management frame. Furthermore, by carrying information about the ultra-high reliability capability set supported by the target access point requested by the non-access point multi-link device in the third management frame, the non-access point multi-link device can use the same UHR technology as the target access point to exchange information, thereby improving data transmission throughput.

[0084] FIG5 is another flow diagram of the information indication method provided in an embodiment of the present application. The method is applied to a non-access point multi-link device. That is, the following embodiment is described using a non-access point multi-link device as an example. As shown in FIG5 , the method may include:

[0085] S501: Receive a first management frame through a first link; wherein the first management frame includes information about a very high reliability capability set supported by the access point.

[0086] S502: Exchange information with the access point according to the ultra-high reliability capability set information.

[0087] The access point multi-link device can carry the ultra-high reliability capability set information supported by the access point in the capability set field of the current link and send it to the corresponding station (STA) in the non-access point multi-link device through the current link (i.e., the first link, identified by AP1). After receiving the first management frame, the non-access point multi-link device parses the specific field in the first management frame to learn that the access point sending the first management frame is an access point that supports the UHR function and which UHR capabilities the access point supports. Furthermore, the non-access point multi-link device can use the UHR technology supported by the peer access point multi-link device to exchange information based on the ultra-high reliability capability set information supported by the peer access point.

[0088] Optionally, the first management frame may include at least one of the following: a beacon frame, a probe response frame, a multi-link probe response frame, an ANQP response frame, an association response frame, a reassociation response frame, a BTM request frame, a link reconfiguration notification frame, a link reconfiguration response frame, and a multi-link operation update response frame.

[0089] The ultra-high reliability capability set information specifically indicates the UHR technologies supported by the access point multi-link device, which may include at least one of the following: C-OFDMA, C-SR, C-BF, non-primary channel access, C-TDMA, C-TWT, Preemption, Relay, and JT.

[0090] The technical solution provided by the embodiments of the present application receives a first management frame via a first link. The first management frame carries information about the ultra-high reliability capability set supported by an access point multi-link device. In this way, a non-access point multi-link device can determine whether the first management frame is from an ultra-high reliability multi-link device or an extremely high throughput multi-link device by parsing a specific field in the first management frame. The device can then use the same ultra-high reliability technology to exchange information with the access point multi-link device at the other end, thereby improving the data transmission throughput of the multi-link communication system.

[0091] In one embodiment, optionally, the first management frame further includes indication information, where the indication information is used to indicate whether the access points around the current access point support the ultra-high reliability function.

[0092] The surrounding access points may include other access points belonging to the same access point multi-link device as the current access point, or may include access points in other access point multi-link devices surrounding the current access point. Optionally, the indication information may be carried in at least one of the following fields: an NR field, an RNR field, a multi-link element field, a reconfiguration multi-link element field, and an MBSSID field.

[0093] Optionally, the indication information may be represented by a specific identifier or a combination of identifiers in the above fields. For example, the indication information may be represented by using a reserved field in the above NR field, RNR field, multilink element field, reconfiguration multilink element field, or MBSSID field. Alternatively, the indication information may be jointly represented by redefining existing fields in the above NR field, RNR field, multilink element field, reconfiguration multilink element field, or MBSSID field.

[0094] Furthermore, after the access point multi-link device sends a first management frame via the first link, the non-access point multi-link device can discover surrounding access point multi-link devices or access points on other links in the access point multi-link device using the NR field, RNR field, multi-link element field, or MBSSID field, and further distinguish these access points as legacy access points or access points supporting the UHR capability set based on the specific identifier (or identifier combination) of each access point. For access points supporting the UHR capability set (identified by AP2), the non-access point multi-link device can send a second management frame via the first link or via the second link where the target access point (such as AP2) is located. The second management frame includes the UHR identifier of a target access point with ultra-high reliability functionality among the surrounding access points, and is used to obtain information about the ultra-high reliability capability set supported by the target access point. Optionally, the second management frame can include at least one of the following: a probe request frame, a multilink probe request frame, an ANQP request frame, an association request frame, a reassociation request frame, a link reconfiguration request frame, and a multilink operation update request frame.

[0095] Furthermore, the non-access point multi-link device receives a third management frame via the first link or via the second link where the target access point (such as AP2) is located; wherein the third management frame includes the ultra-high reliability capability set information supported by the target access point. The third management frame can be understood as a response frame to the second management frame, used to feedback the requested ultra-high reliability capability set information supported by the target AP to the STA. For example, the third management frame can be a probe response frame, a multilink probe response frame, an ANQP response frame, an association response frame, a reassociation response frame, a link reconfiguration response frame, or a multilink operation update response frame. Optionally, the ultra-high reliability capability set information supported by the surrounding access points may be included in the multilink element field, the reconfiguration multilink element field, or the MBSSID field.

[0096] In this way, in a mixed deployment scenario of UHR AP MLDs and traditional access points (such as enhanced high throughput access points), by carrying indication information indicating whether the surrounding access points of the current access point are UHR-capable in a first management frame, a non-access multi-link device, after receiving the first management frame, can determine whether the surrounding access points are traditional access points or UHR AP MLDs based on the indication information in the first management frame. Furthermore, the non-access multi-link device sends a second management frame to the access point multi-link device to request the ultra-high reliability capability set information supported by the target access point, receives a third management frame sent by the access point multi-link device in response to the second management frame, and obtains the ultra-high reliability capability set information specifically supported by the requested target access point by parsing the third management frame. This allows the non-access multi-link device to use the same UHR technology as the target access point for information exchange, thereby improving data transmission throughput.

[0097] In one embodiment, the first management frame may optionally be a BTM request frame. When the first management frame is a BTM request frame, it also includes information about the ultra-high reliability capability set supported by the access point recommended by the access point multi-link device. Specifically, during a fast BSS handover, the access point multi-link device may send a BTM request frame to a connected non-access point multi-link device. The NR field in the BTM request frame carries information about other recommended access points, including the ultra-high reliability capability set supported by each access point. In this way, the non-access point multi-link device can determine whether to handover to the target access point based on the ultra-high reliability capability set supported by each access point. Optionally, after receiving the BTM request frame, the non-access point multi-link device may also send a BTM response frame via the first link. The NR field in the BTM response frame may include information about the ultra-high reliability capability set supported by the target access point to be handed over and / or information about the ultra-high reliability capability sets supported by other access points in the same access point multi-link device as the target access point.

[0098] In one embodiment, the second management frame sent by the non-access point multi-link device may optionally further include ultra-high reliability capability set information supported by the local station (or the local link) in the non-access point multi-link device. For example, during the single-link connection establishment process, the non-access point multi-link device may send a (re)association request frame via the first link, the (re)association request frame carrying the ultra-high reliability capability set information of the local station (or the local link), to request to establish a connection with the access point multi-link device.

[0099] Optionally, the second management frame sent by the non-access point multi-link device may include not only the ultra-high reliability capability set information supported by the current station in the non-access point multi-link device, but also the ultra-high reliability capability set information supported by other stations in the non-access point multi-link device except the current station. For example, during the multi-link connection establishment process, the non-access point multi-link device sends a (re)association request frame via the first link. The (re)association request frame carries the ultra-high reliability capability set information of the current station (or current link) and the ultra-high reliability capability set information of other stations (or other links) in the non-access point multi-link device.

[0100] In this way, by carrying the ultra-high reliability capability set information supported by the current site and the ultra-high reliability capability set information supported by other sites other than the current site in the non-access point multi-link device in the second management frame, the access point multi-link device can obtain the ultra-high reliability capability set information supported by the opposite non-access point multi-link device after receiving the second management frame, and then exchange information with the non-access point multi-link device on one or more links using the commonly supported UHR technology, thereby improving the data transmission throughput of the multi-link communication system.

[0101] It should be noted that when all links in the same non-access point multi-link device support the UHR function, the ultra-high reliability capability set supported by each link may be the same or different. For example, the ultra-high reliability capability set supported by link 1 in the non-access point multi-link device may include UHR technology 1, UHR technology 2 and UHR technology 3, and the ultra-high reliability capability set supported by link 2 may include UHR technology 3, UHR technology 4 and UHR technology 5. The specific one or more UHR technologies supported by the two may be different.

[0102] The following describes the discovery, connection, and fast roaming processes of multi-link devices as an example:

[0103] 1. Discovery Process

[0104] The access point multi-link device sends a first management frame through the first link, and the non-access point multi-link device receives the first management frame. After receiving the first management frame, the non-access point multi-link device may perform the following actions:

[0105] (1) The non-access point multi-link device learns the specific UHR technology supported by the peer access point multi-link device through the ultra-high reliability capability set information supported by the access point in the access point multi-link device included in the first management frame, and then uses the same UHR technology to exchange information with the peer.

[0106] (2) The non-access point multi-link device discovers the surrounding access points of the access point through the other access point information field included in the first management frame, and further distinguishes whether these access points are traditional access points or access points supporting ultra-high reliability capability set information based on the indication information of each surrounding access point (identified by AP2).

[0107] (3) For a target access point that supports ultra-high reliability capability set information among the surrounding access points, the non-access point multi-link device may also send a second management frame to the access point multi-link device through the first link or the second link where the target access point is located. The second management frame includes the UHR identifier of the target access point with ultra-high reliability function among the surrounding access points, and is used to obtain the ultra-high reliability capability set information supported by the target access point. The non-access point multi-link device receives a third management frame through the first link or the second link where the target access point is located, parses the third management frame to obtain the ultra-high reliability capability set information supported by the target access point, and then learns one or more UHR technologies specifically supported by the target access point.

[0108] Optionally, during the discovery process, the first management frame sent by the access point multi-link device may be a beacon frame, a multi-link probe response frame, or an ANQP response frame. The second management frame sent by the non-access point multi-link device may be a (multi-link) probe request frame, an ANQP request frame, or the like.

[0109] Optionally, the ultra-reliability capability set information may be carried in the capability set field, the multilink element field, the reconfiguration multilink element field or the MBSSID field of the current link.

[0110] Optionally, the above indication information can be carried in at least one of the following fields: NR field, RNR field, multi-link element field, reconfiguration multi-link element field and MBSSID field.

[0111] Optionally, the above indication information is represented by a reserved field in the above fields, or a combination of existing fields in the above fields can be used to define the above indication information.

[0112] 2. Connection Process

[0113] When a non-AP Multilink device discovers an AP Multilink device during discovery, it can perform the following actions:

[0114] (1) Single-link connection request: A (re)association request frame is sent via the first link and carries the ultra-high reliability capability set information supported by the current station (or current link) in the non-access point multi-link device.

[0115] (2) Multi-link connection request: A (re)association request frame is sent through the first link, carrying the ultra-high reliability capability set information supported by the current site (or current link) in the non-access point multi-link device and the ultra-high reliability capability set information supported by other sites (or other links) in the non-access point multi-link device except the current site.

[0116] After receiving the (re)association request frame, the access point multi-link device sends a (re)association response frame through the first link, carrying the ultra-high reliability capability set information supported by the access point and the ultra-high reliability capability set information supported by the requested other access points.

[0117] After a connection is successfully established, the non-access point multi-link device and the access point multi-link device exchange information on one or more links using a commonly supported UHR technology.

[0118] 3. Fast roaming process

[0119] After a non-access point multi-link device establishes a connection with an access point multi-link device, under certain conditions, the access point multi-link device sends a BTM request frame to the non-access point multi-link device. The BTM request frame includes information indicating whether surrounding access points of the access point support the UHR function and the specific ultra-high reliability capability set supported by the access points supporting the UHR function.

[0120] After receiving the BTM request frame, the non-access point multi-link device sends a BTM response frame to the access point multi-link device. The BTM response frame includes information about the ultra-high reliability capability set supported by the target access point.

[0121] The non-access point multi-link device sends a single-link or multi-link connection request to the target access point to complete the roaming handover process.

[0122] FIG6 is a schematic diagram of a structure of an information indication device provided in an embodiment of the present application. The device is integrated into an access point multi-link device, as shown in FIG6 , and may include: a processing module 601 and a sending module 602 .

[0123] Specifically, the processing module 601 is configured to generate a first management frame; wherein the first management frame includes information about an ultra-high reliability capability set supported by the access point;

[0124] The sending module 602 is configured to send the first management frame through the first link.

[0125] Based on the above embodiment, optionally, the first management frame further includes indication information, where the indication information is used to indicate whether access points around the current access point support the UHR function.

[0126] On the basis of the above embodiment, optionally, it further includes: a receiving module.

[0127] Specifically, the receiving module is configured to receive a second management frame through the first link or the second link; wherein the second management frame includes a UHR identifier of a target access point with an ultra-high reliability function among the surrounding access points, and is configured to obtain ultra-high reliability capability set information supported by the target access point;

[0128] The sending module 602 is further configured to send a third management frame through the first link or the second link; wherein the third management frame includes information about a very high reliability capability set supported by the target access point.

[0129] Based on the above embodiment, optionally, the indication information is carried in at least one of the following fields:

[0130] NR field, RNR field, multilink element field, reconfiguration multilink element field and MBSSID field.

[0131] Based on the above embodiment, optionally, the indication information is represented by a specific identifier or a combination of identifiers in the field.

[0132] Based on the above embodiment, optionally, the ultra-high reliability capability set information is carried in at least one of the following fields:

[0133] The capability set field of the current link, the multilink element field, the reconfiguration multilink element field, and the MBSSID field.

[0134] Based on the above embodiment, optionally, the ultra-high reliability capability set information includes at least one of the following:

[0135] Orthogonal frequency division multiple access collaboration, spatial multiplexing collaboration, beamforming collaboration, non-primary channel intervention, time division multiple access collaboration, target wake-up time collaboration, channel resource preemption technology, relay technology and joint transmission technology.

[0136] Based on the above embodiment, optionally, the first management frame and the third management frame include at least one of the following:

[0137] Beacon frame, probe response frame, multilink probe response frame, ANQP response frame, association response frame, reassociation response frame, BTM request frame, link reconfiguration notification frame, link reconfiguration response frame, and multilink operation update response frame.

[0138] FIG7 is another schematic diagram of the structure of an information indication device according to an embodiment of the present application. The device is integrated into a non-access point multi-link device, as shown in FIG7 , and may include: a receiving module 701 and a processing module 702 .

[0139] Specifically, the receiving module 701 is configured to receive a first management frame through a first link; wherein the first management frame includes ultra-high reliability capability set information supported by the access point;

[0140] The processing module 702 is configured to perform information exchange with the local access point according to the ultra-high reliability capability set information.

[0141] Based on the above embodiment, optionally, the first management frame further includes indication information, where the indication information is used to indicate whether access points around the current access point support an ultra-high reliability function.

[0142] Based on the above embodiment, optionally, when the first management frame is a BTM request frame, the first management frame further includes ultra-high reliability capability set information supported by the access point recommended by the access point multi-link device.

[0143] On the basis of the above embodiment, optionally, it further includes: a sending module.

[0144] Specifically, the sending module is configured to send a second management frame through the first link or the second link; wherein the second management frame includes a UHR identifier of a target access point with an ultra-high reliability function among the surrounding access points, and is used to obtain ultra-high reliability capability set information supported by the target access point;

[0145] The receiving module 701 is further configured to receive a third management frame through the first link or the second link; wherein the third management frame includes information about the ultra-reliability capability set supported by the target access point.

[0146] Based on the above embodiment, optionally, the second management frame further includes ultra-high reliability capability set information supported by the current station in the non-access point multi-link device.

[0147] Based on the above embodiment, optionally, the second management frame further includes ultra-high reliability capability set information supported by other stations in the non-access point multi-link device except the current station.

[0148] Based on the above embodiment, optionally, the second management frame includes at least one of the following:

[0149] Probe request frame, multilink probe request frame, ANQP request frame, association request frame, reassociation request frame, link reconfiguration request frame, and multilink operation update request frame.

[0150] Based on the above embodiment, optionally, the sending module is further used to send a BTM response frame through the first link; wherein, the BTM response frame includes ultra-high reliability capability set information supported by the target access point to be switched and / or ultra-high reliability capability set information supported by other access points in the same access point multi-link device as the target access point.

[0151] Based on the above embodiment, optionally, the indication information is carried in at least one of the following fields:

[0152] NR field, RNR field, multilink element field, reconfiguration multilink element field and MBSSID field.

[0153] Based on the above embodiment, optionally, the ultra-high reliability capability set information includes at least one of the following:

[0154] Orthogonal frequency division multiple access collaboration, spatial multiplexing collaboration, beamforming collaboration, non-primary channel intervention, time division multiple access collaboration, target wake-up time collaboration, channel resource preemption technology, relay technology and joint transmission technology.

[0155] Based on the above embodiment, optionally, the ultra-high reliability capability set information is carried in at least one of the following fields:

[0156] The capability set field of the current link, the multilink element field, the reconfiguration multilink element field, and the MBSSID field.

[0157] Based on the above embodiment, optionally, the processing module 702 is specifically configured to perform information interaction based on the ultra-high reliability capability set information and using a UHR technology that is commonly supported by the access point.

[0158] In one embodiment, a communication node is also provided, comprising a non-access point multi-link device or an access point multi-link device. The internal structure diagram of the communication node may be shown in FIG8 . The communication node includes a processor, memory, a network interface, and a database connected via a system bus. The processor of the communication node is configured to provide computing and control capabilities. The memory of the communication node includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an operating environment for the operating system and computer program in the non-volatile storage medium. The database of the communication node is configured to store data generated during the information indication process. The network interface of the communication node is configured to communicate with an external terminal via a network connection. When executed by the processor, the computer program implements an information indication method.

[0159] Those skilled in the art will understand that the structure shown in Figure 8 is merely a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the communication node to which the solution of the present application is applied. The specific communication node may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0160] The present application also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the following steps are implemented:

[0161] Generate a first management frame; wherein the first management frame includes ultra-high reliability capability set information supported by the access point;

[0162] The first management frame is sent through the first link.

[0163] The present application also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the following steps are implemented:

[0164] receiving a first management frame through a first link; wherein the first management frame includes information about an ultra-high reliability capability set supported by the access point;

[0165] Information is exchanged with the local access point according to the ultra-high reliability capability set information.

[0166] The computer storage medium of the embodiment of the present application can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. The computer-readable storage medium includes (a non-exhaustive list): an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0167] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, the data signal carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transfer a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0168] The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the foregoing.

[0169] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages ​​or a combination of multiple programming languages, including object-oriented programming languages ​​(such as Java, Smalltalk, C++, Ruby, Go), and conventional procedural programming languages ​​(such as "C" or similar programming languages). The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0170] It will be appreciated by those skilled in the art that the term user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a vehicle-mounted mobile station.

[0171] In general, various embodiments of the present application may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.

[0172] Embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

[0173] The block diagram of any logical flow in the drawings of this application may represent program steps, or may represent interconnected logical circuits, modules and functions, or may represent a combination of program steps and logical circuits, modules and functions. A computer program may be stored on a memory. The memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical memory devices and systems (digital versatile discs (DVD) or compact disks (CD)), etc. Computer-readable media may include non-transitory storage media. The data processor may be of any type suitable for the local technical environment, such as, but not limited to, a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FPGA), and a processor based on a multi-core processor architecture.

Claims

1. An information indication method, applied to an access point multi-link device, the method comprising: Generate a first management frame; wherein the first management frame includes ultra-high reliability capability set information supported by the access point; The first management frame is sent via a first link.

2. The method according to claim 1, wherein: The first management frame also includes indication information, where the indication information is used to indicate whether the surrounding access points of the access point support an ultra high reliability (UHR) function.

3. The method according to claim 2, further comprising: Receiving a second management frame through the first link or the second link; wherein the second management frame includes a UHR identifier of a target access point with an ultra-high reliability function among the surrounding access points, and is used to obtain ultra-high reliability capability set information supported by the target access point; A third management frame is sent through the first link or the second link; wherein the third management frame includes information about a very high reliability capability set supported by the target access point.

4. The method according to claim 2, wherein: The indication information is carried in at least one of the following fields: Neighbor Report NR field, Reduced Neighbor Report RNR field, Multilink Element field, Reconfiguration Multilink Element field and Multiple Basic Service Set Identifier MBSSID field.

5. The method according to claim 4, wherein: The indication information is represented by a specific identifier or a combination of identifiers in at least one of the NR field, the RNR field, the multilink element field, the reconfiguration multilink element field and the MBSSID field.

6. The method according to claim 3, wherein: The ultra-high reliability capability set information is carried in at least one of the following fields: The capability set field of the current link, the multilink element field, the reconfiguration multilink element field, and the MBSSID field.

7. The method according to claim 1, wherein: The ultra-high reliability capability set information includes at least one of the following: Orthogonal frequency division multiple access collaboration, spatial multiplexing collaboration, beamforming collaboration, non-main channel intervention, time division multiple access collaboration, target wake-up time collaboration, channel resource preemption technology, relay technology and joint transmission technology.

8. The method according to claim 3, wherein: The first management frame and the third management frame include at least one of the following: Beacon frame, probe response frame, multilink probe response frame, access network query protocol ANQP response frame, association response frame, reassociation response frame, basic service set transfer management BTM request frame, link reconfiguration notification frame, link reconfiguration response frame and multilink operation update response frame.

9. An information indication method, applied to a non-access point multi-link device, the method comprising: Receiving a first management frame through a first link; wherein the first management frame includes ultra-high reliability capability set information supported by the access point; Information is exchanged with the local access point according to the ultra-high reliability capability set information.

10. The method according to claim 9, wherein: The first management frame also includes indication information, where the indication information is used to indicate whether the surrounding access points of the current access point support the ultra-high reliability function.

11. The method according to claim 9, wherein: In the case where the first management frame is a basic service set transfer management BTM request frame, the first management frame further includes ultra-high reliability capability set information supported by the access point recommended by the access point multi-link device.

12. The method according to claim 10, further comprising: Sending a second management frame through the first link or the second link; wherein the second management frame includes an ultra-high reliability UHR identifier of a target access point with an ultra-high reliability function among the surrounding access points, which is used to obtain ultra-high reliability capability set information supported by the target access point; A third management frame is received through the first link or the second link; wherein the third management frame includes information about a very high reliability capability set supported by the target access point.

13. The method according to claim 12, wherein: The second management frame also includes ultra-high reliability capability set information supported by the current station in the non-access point multi-link device.

14. The method according to claim 12, wherein: The second management frame also includes ultra-high reliability capability set information supported by other stations in the non-access point multi-link device except the current station.

15. The method according to claim 12, wherein: The second management frame includes at least one of the following: Probe request frame, multilink probe request frame, access network query protocol ANQP request frame, association request frame, reassociation request frame, link reconfiguration request frame and multilink operation update request frame.

16. The method according to claim 11, further comprising: Sending a BTM response frame through the first link; wherein the BTM response frame includes at least one of the following: ultra-high reliability capability set information supported by the target access point to be switched, and ultra-high reliability capabilities supported by other access points in the same access point multi-link device as the target access point Collection information.

17. The method according to claim 10, wherein: The indication information is carried in at least one of the following fields: Neighbor Report NR field, Reduced Neighbor Report RNR field, Multilink Element field, Reconfiguration Multilink Element field and Multiple Basic Service Set Identifier MBSSID field.

18. The method according to claim 9, wherein: The ultra-high reliability capability set information includes at least one of the following: Orthogonal frequency division multiple access collaboration, spatial multiplexing collaboration, beamforming collaboration, non-main channel intervention, time division multiple access collaboration, target wake-up time collaboration, channel resource preemption technology, relay technology and joint transmission technology.

19. The method according to claim 9, wherein: The ultra-high reliability capability set information is carried in at least one of the following fields: The capability set field of the current link, the multilink element field, the reconfiguration multilink element field, and the MBSSID field.

20. The method according to claim 9, wherein: The performing information interaction with the access point according to the ultra-high reliability capability set information includes: According to the ultra-high reliability capability set information, information interaction is performed using a UHR technology that is commonly supported by the access point.

21. An information indication device, integrated in an access point multi-link device, the device comprising: A processing module, configured to generate a first management frame; wherein the first management frame includes information on an ultra-high reliability capability set supported by the access point; A sending module is used to send the first management frame through a first link.

22. An information indication device, integrated in a non-access point multi-link device, the device comprising: A receiving module, configured to receive a first management frame through a first link; wherein the first management frame includes information about an ultra-high reliability capability set supported by the access point; A processing module is used to perform information exchange with the access point according to the ultra-high reliability capability set information.

23. A communication node, comprising: A memory and a processor, wherein the memory stores a computer program, and the processor implements the method according to any one of claims 1 to 20 when executing the computer program.

24. A storage medium storing a computer program, wherein the computer program implements the method according to any one of claims 1 to 20 when executed by a processor.

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