WO2022188044A1 - Communication method and communication apparatus under multiple links - Google Patents

Communication method and communication apparatus under multiple links Download PDF

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Publication number
WO2022188044A1
WO2022188044A1 PCT/CN2021/079841 CN2021079841W WO2022188044A1 WO 2022188044 A1 WO2022188044 A1 WO 2022188044A1 CN 2021079841 W CN2021079841 W CN 2021079841W WO 2022188044 A1 WO2022188044 A1 WO 2022188044A1
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WIPO (PCT)
Prior art keywords
connection
message frame
communication method
information
system information
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PCT/CN2021/079841
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French (fr)
Chinese (zh)
Inventor
董贤东
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北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2021/079841 priority Critical patent/WO2022188044A1/en
Priority to CN202180000624.1A priority patent/CN115398981A/en
Publication of WO2022188044A1 publication Critical patent/WO2022188044A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information

Definitions

  • the present disclosure relates to the field of communication, and more particularly, to a communication method and communication device under multiple connections.
  • the current research scope of Wi-Fi technology is: 320MHz bandwidth transmission, aggregation and coordination of multiple frequency bands, etc. It is expected to increase the rate and throughput by at least four times compared with the existing standards.
  • the main application scenarios are: Video transmission, AR (Augmented Reality, augmented reality), VR (Virtual Reality, virtual reality), etc.
  • the aggregation and collaboration of multiple frequency bands refers to the simultaneous communication between devices in the frequency bands of 2.4GHz, 5GHz and 6-7GHz.
  • a new MAC Media Access Control
  • a new MAC Media Access Control
  • the current multi-band aggregation and system technology will support a maximum bandwidth of 320MHz (160MHz+160MHz), and may also support 240MHz (160MHz+80MHz) and other bandwidths.
  • a station STA: Station
  • an access point AP: Access Point
  • MLD multi-link device
  • An exemplary embodiment according to the present disclosure provides a communication method under multiple connections.
  • the communication method can be applied to a station supporting multi-connection communication, and includes: determining a first message frame; sending a first message frame under a first connection in the multi-connection, wherein the first message frame includes first information , the first information includes a first change sequence identifier related to the change of the system information of the access point corresponding to the first connection.
  • An exemplary embodiment according to the present disclosure provides a communication method under multiple connections.
  • the communication method can be applied to an access point supporting multi-connection communication, and includes: receiving a first message frame under a first connection in the multi-connection, wherein the first message frame includes first information, and the first message frame includes first information.
  • One piece of information includes a first change sequence identifier related to the change of the system information of the access point corresponding to the first connection; and based on the first message frame, a corresponding communication operation is performed.
  • An exemplary embodiment according to the present disclosure provides a communication method under multiple connections.
  • the communication method can be applied to a station supporting multi-connection communication, and includes: receiving a seventh message frame under a first connection in the multi-connection, wherein the seventh message frame includes a frame corresponding to the first connection The changed system information of the access point; based on the seventh message frame, perform a corresponding communication operation.
  • An exemplary embodiment according to the present disclosure provides a communication method under multiple connections.
  • the communication method can be applied to an access point supporting multi-connection communication, and includes: determining a seventh message frame; sending a seventh message frame under a first connection in the multi-connection, wherein the seventh message frame System information including changes to the access point corresponding to the first connection.
  • An exemplary embodiment according to the present disclosure provides a multi-connection communication device.
  • the communication device can be applied to a station supporting multi-connection communication, and includes: a processing module configured to: determine a first message frame; a transceiver module configured to: send a first message frame under the first connection in the multi-connection A message frame, wherein the first message frame includes first information, and the first information includes a first change sequence identifier related to the change of the system information of the access point corresponding to the first connection.
  • An exemplary embodiment according to the present disclosure provides a multi-connection communication device.
  • the communication apparatus can be applied to an access point supporting multi-connection communication, and includes a transceiver module configured to: receive a first message frame under a first connection in the multi-connection, wherein the first message The frame includes first information, and the first information includes a first change sequence identifier related to the change of the system information of the access point corresponding to the first connection; the processing module is configured to: based on the first message frame , and perform the corresponding communication operation.
  • An exemplary embodiment according to the present disclosure provides a multi-connection communication device.
  • the communication apparatus may be applied to a station supporting multi-connection communication, and includes: a transceiver module configured to: receive a seventh message frame under a first connection in the multi-connection, wherein the seventh message frame includes Changed system information of the access point corresponding to the first connection; the processing module is configured to: perform a corresponding communication operation based on the seventh message frame.
  • An exemplary embodiment according to the present disclosure provides a multi-connection communication device.
  • the communication device can be applied to an access point supporting multi-connection communication, and includes: a processing module configured to: determine a seventh message frame; a transceiver module configured to: under the first connection in the multi-connection A seventh message frame is sent, wherein the seventh message frame includes the changed system information of the access point corresponding to the first connection.
  • the electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor.
  • the processor executes the computer program to implement the method as described above.
  • a computer-readable storage medium is provided according to example embodiments of the present disclosure.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program when executed by a processor, implements the method as described above.
  • the technical solutions provided by the exemplary embodiments of the present disclosure can meet the multi-connection communication requirements and improve the spectrum utilization rate.
  • FIG. 1 is an exemplary diagram illustrating a communication scenario under multiple connections.
  • FIG. 2 is a flowchart illustrating a communication method according to an embodiment.
  • FIG. 3 is a detailed flowchart illustrating a communication method according to an embodiment.
  • FIG. 4 is a schematic diagram illustrating interactive communication according to the embodiment shown in FIG. 3 .
  • FIG. 5 is another detailed flowchart illustrating a communication method according to an embodiment.
  • FIG. 6 is a schematic diagram illustrating interactive communication according to the embodiment shown in FIG. 5 .
  • FIG. 7 is a flowchart illustrating another communication method according to an embodiment.
  • FIG. 8 is a flowchart illustrating another communication method according to an embodiment.
  • FIG. 9 is a schematic diagram illustrating interactive communication of the embodiment of the communication method shown in FIG. 8 .
  • FIG. 10 is a schematic diagram illustrating interactive communication of another embodiment of the communication method shown in FIG. 8 .
  • FIG. 11 is a flowchart illustrating another communication method according to an embodiment.
  • FIG. 12 is a block diagram illustrating a communication apparatus according to an embodiment.
  • FIG. 1 is an exemplary diagram illustrating a communication scenario under multiple connections.
  • a basic service set may consist of an AP and one or more stations (STA) that communicate with the AP.
  • a basic service set can be connected to the distribution system DS (Distribution System) through its AP, and then connected to another basic service set to form an extended service set ESS (Extended Service Set).
  • DS Distribution System
  • ESS Extended Service Set
  • AP is a wireless switch for wireless network, and it is also the core of wireless network.
  • AP equipment can be used as a wireless base station, mainly used as a bridge for connecting wireless networks and wired networks. With this access point AP, wired and wireless networks can be integrated.
  • the AP may include software applications and/or circuitry to enable other types of nodes in the wireless network to communicate with the outside and inside of the wireless network through the AP.
  • the AP may be a terminal device or a network device equipped with a Wi-Fi (Wireless Fidelity, wireless fidelity) chip.
  • Wi-Fi Wireless Fidelity, wireless fidelity
  • a station may include, but is not limited to, cellular phones, smart phones, wearable devices, computers, personal digital assistants (PDAs), personal communication system (PCS) devices, personal information managers (PIMs), personal navigation Devices (PND), Global Positioning Systems, Multimedia Devices, Internet of Things (IoT) devices, etc.
  • PDAs personal digital assistants
  • PCS personal communication system
  • PIMs personal information managers
  • PND personal navigation Devices
  • IoT Internet of Things
  • APs and STAs may support multi-connected devices, for example, may be denoted as AP MLD and non-AP STA MLD, respectively.
  • AP MLD multi-connected devices
  • non-AP STA MLD multi-connected devices
  • the AP MLD may represent an access point supporting the multi-connection communication function
  • the non-AP STA MLD may represent a station supporting the multi-connection communication function.
  • the AP MLD can work under three connections.
  • the AP MLD includes the auxiliary access points AP1, AP2 and AP3, which can correspond to three connections respectively;
  • the non-AP STA MLD can also work in the Under three connections, as shown in Figure 1, the affiliated stations STA1, STA2 and STA3 included in the non-AP STA MLD may correspond to three connections respectively.
  • FIG. 1 the AP MLD may represent an access point supporting the multi-connection communication function
  • the non-AP STA MLD may represent a station supporting the multi-connection communication function.
  • the AP MLD can work under three connections.
  • the AP MLD includes the auxiliary access points AP1, AP2 and AP3, which can correspond to three connections respectively;
  • the non-AP STA MLD can also work in the Under three connections, as shown in Figure 1, the affiliated stations
  • Link 1 to Link 3 may be multiple connections at different frequencies, for example, connections at 2.4GHz, 5GHz, 6GHz, etc., or several connections at 2.4GHz, 5GHz, 6GHz with the same or different bandwidths. Furthermore, multiple channels can exist under each connection.
  • an AP MLD may be connected to a plurality of non-AP STA MLDs, or under each connection, an AP Can communicate with several other types of sites.
  • the access point can set the carry in, for example, a beacon (beacon) frame. Change the value of the change sequence field. If the value of the change sequence field received by the site is different from the value received last time, it means that the system information has changed.
  • the station can obtain the changed system information in two ways: In one method, the station receives the DTIM (Data pending indication transfer, Delivery Traffic Indication Map) beacon frame broadcast by the AP, and the DTIM beacon frame carries the changed system information.
  • DTIM Data pending indication transfer, Delivery Traffic Indication Map
  • the station sends a probe request (probe request) frame, and the access point replies with a compressed probe response (probe response) frame that carries the changed system information.
  • probe request probe request
  • probe response compressed probe response
  • the system information of the AP MLD changes, it can be reported through, for example, Reduced Neighbor Report (Reduced Neighbor Report). report) information element broadcast out.
  • Reduced Neighbor Report Reduced Neighbor Report
  • the Change Sequence field of one AP of the same AP MLD can be carried in the reduced neighbor report information element; the Change Sequence field of each AP in other APs of the same AP MLD can be carried in the simplified neighbor report corresponding to the one AP.
  • the multi-connection device parameters MLD Parameters
  • subfield of the TBTT target beacon transmission time
  • the method for the AP MLD to identify the SI changes when the SI changes is described, it lacks the SI or Basic Service Set (BSS: Basic service) that the access point notifies the station of the change in the case of multi-connection communication.
  • BSS Basic Service Set
  • FIG. 2 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.
  • the communication method shown in FIG. 2 can be applied to a station supporting multi-connection communication (non-AP STA MLD).
  • a first message frame may be determined.
  • a first message frame may be sent under a first connection in the multiple connections.
  • a multi-connection may refer to a plurality of connections established between the AP MLD and the non-AP STA MLD capable of communicating.
  • the first message frame may be determined under the first connection for transmitting the first message frame, however, the present disclosure is not limited thereto, for example, determining the first message frame and transmitting the first message frame may be under different connections proceed below.
  • the first message frame may include first information, and the first information may include a first change sequence identifier related to a system information change of the access point corresponding to the first connection.
  • the first change sequence identification may be used to instruct the access point to send changed system information or key update information of a basic service set (BSS).
  • BSS basic service set
  • the first message frame may be a probe request frame or a multi-link (ML, multi-link) probe request frame
  • the first information may be a probe request frame or an ML information element in an ML probe request frame
  • the first change sequence The identifier may be the change sequence field in the ML information element.
  • the communication method shown in FIG. 2 may be an operation performed after the station determines that the system information of the access point corresponding to the first connection has changed.
  • the station may receive a beacon frame from the access point, and determine that the system information of the access point has changed according to the change sequence field in the beacon frame, however, since the station, for example, after a certain period of time has elapsed Changed system information or critical updates to the Basic Service Set (BSS) have not been received from the access point, so the station proactively interrogates by carrying the change sequence field in the probe request.
  • BSS Basic Service Set
  • a change in the system information of an access point may indicate that a critical update occurs to an element in the beacon frame, for example, at least one of the following events may be classified as a critical update:
  • the system information changes.
  • the AP can increase the value of the Check Beacon field in the next transmitted data pending indication (TIM) frame ( modulo 256).
  • TIM next transmitted data pending indication
  • the events shown above are only exemplary, and embodiments of the present disclosure are not limited thereto, and other system information events are possible, such as, for example, Modification of the EHT Operation element , Modification of the HE Operation element, Insertion of a Broadcast TWT element, Inclusion of the BSS Color Change Announcement element, MU EDCA parameter set element Modification of the MU EDCA Parameter Set element, Modification of the Spatial Reuse Parameter Set element, Modification of the UORA Parameter Set element, etc.
  • the station may determine the first message frame according to various manners.
  • the first message frame may be determined from a beacon frame previously received from the corresponding access point.
  • the station may determine the first change sequence identifier in the first message frame to be a value different from the value of the change sequence field in the received beacon frame.
  • the access point receives the first message frame, it can determine whether it needs to send the changed system information or the key update information of the basic service set (BSS) to the station according to the value of the change sequence field carried in the first message frame.
  • BSS basic service set
  • the message description will be made below.
  • the system information is used as an example for description, however, the present disclosure is not limited thereto, and the example about the system information may also be applied to the key update information of the Basic Service Set (BSS).
  • BSS Basic Service Set
  • FIG. 2 describes the operation when the system information of the access point corresponding to the first connection in the multi-connection changes, and for the case where the system information of the access point corresponding to the other connections in the multi-connection changes, you can There are two implementations, which will be described in detail below with reference to FIGS. 3 to 6 .
  • FIG. 3 is a detailed flowchart illustrating a communication method according to an embodiment
  • FIG. 4 is a schematic diagram illustrating interactive communication according to the embodiment illustrated in FIG. 3 .
  • a fourth message frame may be received under the first connection and another connection different from the first connection, respectively, wherein the fourth message frame may include a message indicating that the system information of the access point of the corresponding connection has changed Information ID.
  • the fourth message frame may be a beacon frame broadcast by an AP under the corresponding connection, and the information identifier may be a change sequence (change sequence) field carried in the beacon frame.
  • the first connection may be used for communication between the station STA1 of the non-AP STA MLD and the access point AP1 of the AP MLD, for example, the first connection may be the first connection Link1 shown in FIG.
  • the other connection can be used for communication between the station STA2 of the non-AP STA MLD and the access point AP2 of the AP MLD, for example, the other connection can be the second connection Link2 shown in FIG. 1 .
  • Step 310 of FIG. 3 may correspond to operations S410_1 and S410_2 of FIG. 4 , that is, under the first connection Link1, STA1 may receive a fourth message frame (eg, a beacon) sent by the access point AP1 corresponding to the first connection Link1 frame); under another connection Link2, STA2 may receive a fourth message frame (eg, a beacon frame) sent by the access point AP2 corresponding to the other connection Link2, and operations S410_1 and S410_2 may be performed in parallel.
  • a fourth message frame eg, a beacon
  • the fourth message frame (for example, a beacon frame) received by STA1 may carry an information identifier indicating that the system information of the access point AP1 connected to Link1 first changes, for example, the change sequence field related to AP1; STA2
  • the received fourth message frame (for example, a beacon frame) may carry an information identifier indicating that the system information of another access point AP2 connected to Link2 has changed, for example, a change sequence field related to AP2.
  • the carried information identifier (change sequence field) may be included in the reduced neighbor report information element (RNRE, Reduced Neighbor Report element) of the fourth message frame (beacon frame).
  • step S310 of FIG. 3 and operations S410_1 and S410_2 of FIG. 4 are only exemplary, and the communication method according to the embodiment may further include: performing under another other connection between the non-AP STA MLD and the AP MLD Similar operations are omitted here for brevity.
  • the corresponding access can be determined according to the information identifier (change sequence field) carried in the fourth message frame Whether the system information of the point has changed. For example, when the corresponding station determines that the value of the information identifier (change sequence field) received this time is different from the value of the previously received information identifier (change sequence field), it can be determined that the corresponding access point has occurred. Variety. If the corresponding station does not receive the changed system information sent by the corresponding access point after a certain period of time, for example, steps 320 to 340 may be performed.
  • a first message frame (eg, a probe request frame or an ML probe request frame) may be sent under the first connection.
  • the first message frame (probe request frame or ML probe request frame) may carry a first change sequence identifier (change sequence field) related to the system information change of the access point AP1 corresponding to the first connection Link1. That is, the first message frame sent under the first connection may include a change sequence identifier (for example, a change sequence field) related to the change of the system information of the access point corresponding to the current connection (the first connection Link1).
  • the first change sequence identifier may be used to instruct the access point corresponding to the first connection to send changed system information.
  • Step 320 may correspond to operation S420_1 of FIG. 4 .
  • the value of the change sequence field carried in the first message frame sent in operation S420_1 may be different from the change sequence field carried in the fourth message frame received in operation S410_1. Therefore, when the access point AP1 receives the first message frame, it may determine to send the changed system information to the station STA1 according to the first change sequence identifier (change sequence field) (operation S430_1).
  • step 320 and operation S420_1 may correspond to step 220 of FIG. 2 , and in order to avoid redundancy, repeated descriptions are omitted here.
  • a second message frame may be sent under another connection.
  • the second message frame may include another change sequence identifier related to the system information change of the access point corresponding to the other connection.
  • Step 330 may correspond to operation S420_2 of FIG. 4 , as an example, the second message frame may be a probe request frame or an ML probe request frame, and the other change sequence identifier may be an ML included in the probe request frame or the ML probe request frame.
  • the change sequence field of the information element That is, the second message frame sent under another connection may include a change sequence identifier (for example, a change sequence field) related to the change of the system information of the access point corresponding to the current connection (the other connection Link2).
  • the other change sequence identifier may be used to instruct the access point corresponding to another connection to send the changed system information.
  • the value of the change sequence field carried in the second message frame sent in operation S420_2 may be different from the change sequence field carried in the fourth message frame received in operation S410_2. That is, when the access point AP2 receives the second message frame, it may determine, according to the other change sequence identifier (change sequence field), that the changed system information needs to be sent (operation S430_2).
  • the value of the change sequence field carried in the first message frame sent in operation S420_1 and the value of the change sequence field carried in the second message frame sent in operation S420_2 may be the same or different, which are not specifically limited in the present disclosure .
  • the corresponding station may receive a third message frame under the first connection and another connection, respectively, wherein the third message frame includes system information or basic service set (BSS) indicating the change of the access point of the corresponding connection. ) key updates.
  • the third message frame may be a compressed probe response frame or an ML probe response frame.
  • the access point may send the system information mainly including the change A compressed probe response frame or ML probe response frame of information or key update information of the Basic Service Set (BSS), rather than a general probe response frame or ML probe response frame that also contains a lot of other information.
  • BSS Basic Service Set
  • step S340 may correspond to operations S430_1 and S430_2 of FIG. 4 .
  • the station STA1 may receive a third message frame (compressed probe response frame or ML probe response frame) containing the changed system information of AP1 from the corresponding access point AP1; in another connection Under Link2, the station STA2 may receive a third message frame (compressed probe response frame or ML probe response frame) containing AP2's changed system information from the corresponding access point AP2.
  • step 320 and step 330 may be performed in parallel
  • operations S420_1 and S420_2 may be performed in parallel
  • operations S430_1 and S430_2 may be performed in parallel.
  • the communication method described in FIG. 3 and FIG. 4 can be performed, that is, the non-AP STA MLD can be sent separately under each connection.
  • a probe request frame or an ML probe request frame (carrying a change sequence information element), and a compressed probe response frame or an ML probe response frame replied by the AP MLD can be received under each connection, respectively.
  • FIG. 5 is another detailed flowchart illustrating the communication method according to the embodiment
  • FIG. 6 is a schematic diagram illustrating the interactive communication according to the embodiment shown in FIG. 5 .
  • a sixth message frame may be received under the first connection.
  • the sixth message frame may include second information, and the second information may include an information identifier indicating that the system information of the access point corresponding to the first connection has changed.
  • the second information may further include: an information identifier indicating that the system information of the access point corresponding to other connections different from the first connection has changed.
  • Step 510 may correspond to operation S610 of FIG. 6 , as an example, the sixth message frame may be a beacon frame broadcast by an access point corresponding to the first connection, and the second information may be abbreviated neighbor report information in the beacon frame element, the information identifier can be the change sequence field in the reduced neighbor report information element.
  • the sixth message frame received under the first connection may not only include access points corresponding to the present connection (eg, the first connection)
  • the second information of the sixth message frame may further include a connection identifier, so as to indicate which connection the corresponding information identifier corresponds to.
  • a first message frame may be sent under the first connection.
  • the first message frame may include first information, and the first information may include a first change sequence identifier related to a change in system information of an access point corresponding to the first connection.
  • the first information may further include: other change sequence identifiers related to system information changes of access points corresponding to other connections different from the first connection.
  • the first message frame may be a probe request frame or an ML probe request frame
  • the first information may be a probe request frame or an ML information element in an ML probe request frame
  • the first change sequence identifier and other change sequence identifiers may be The change sequence field in the ML information element of a probe request frame or ML probe request frame.
  • the first connection may be the connection that receives the sixth message frame (beacon frame), for example, may be Link1 shown in FIG. 1 .
  • the present disclosure is not limited thereto, and the first connection may be different from the connection that received the sixth message frame (beacon frame), and may be any connection among multiple connections that have been established between the non-AP STA MLD and the AP MLD.
  • other connections different from the first connection may be connections in which the system information of access points other than the first connection Link1 in the established multi-connection has changed, for example, Link2 and/or Link3 shown in FIG. 1 . Wait.
  • the first message frame sent under the first connection may not only include the connection corresponding to the current connection (the first connection).
  • the first change sequence identifier related to the system information change of the ingress point may also include other change sequence identifiers related to the system information change of the access point corresponding to other connections different from the current connection (the first connection).
  • the first information of the first message frame may further include: connection identifiers corresponding to the first connection and/or other connections respectively.
  • Each connection identifier may indicate the connection to which the corresponding change sequence identifier corresponds.
  • Link1 shown in FIG.
  • the first message frame sent in step 320 and operation S620 may include: changes corresponding to Link1 The sequence identifier and the connection identifier corresponding to Link1, and the change sequence identifier corresponding to Link3 and the connection identifier corresponding to Link3.
  • the access point When the access point receives the first message frame sent in step 520 and operation S620, it can determine which access point's changed system information or basic service set (BSS) needs to be sent according to the change sequence identifier and the corresponding connection identifier. key updates.
  • the station may receive a fifth message frame under the first connection, where the fifth message frame includes: system information indicating changes of access points corresponding to the first connection and other connections, and Connection identifiers of the first connection and/or other connections.
  • the connection identifier of the connection may only appear once. That is to say, one connection identifier may correspond to changes of multiple system information under one connection.
  • Step 530 may correspond to operation S630 of FIG. 6
  • the fifth message frame may be a compressed probe response frame or an ML probe response frame, which may carry a system of changes in access points corresponding to the first connection and other connections information, and/or the corresponding connection identifier.
  • the non-AP STA MLD can send a probe request frame or an ML probe request frame (ML probe) under the connection that receives the change sequence field or under any connection that has established multi-connection communication. request), where the value of the change sequence field under each connection may be different (or the same), so it needs to carry the corresponding connection identifier (link ID); then the non-AP STA MLD can receive the compression probe sent by the AP MLD Response frame or ML probe response frame (ML probe response) to obtain the changed system information and the corresponding connection identifier.
  • ML probe ML probe response
  • step 530 of FIG. 5 and step S630 of FIG. 6 are only exemplary, and the present disclosure is not limited thereto.
  • the changed system information of the corresponding access point in this case, may not include the connection identifier.
  • FIG. 7 is a flowchart illustrating another communication method according to an embodiment. Another communication method shown in FIG. 7 can be applied to an access point supporting multi-connection communication.
  • a first message frame may be received under the first connection.
  • the first message frame may include first information, and the first information may include a first change sequence identifier related to a system information change of the access point corresponding to the first connection.
  • the first message frame may be a probe request frame or an ML probe request frame
  • the first information may be a multi-connection (ML) information element in a probe request frame or an ML probe request frame
  • the first change sequence identifier may be an ML The change sequence field in the information element.
  • the first message frame, the first information and the first change sequence identifier here may be similar to the embodiments described with reference to steps 210 and 220 of FIG. 2 , step 320 of FIG. 3 and operation S420_1 of FIG. 4 , and are omitted here for brevity Duplicate description.
  • a corresponding communication operation may be performed based on the first message frame.
  • the access point may determine, according to the first change sequence identifier carried in the first message frame, whether to send the changed system information of the access point or the key update information of the basic service set (BSS).
  • the access point may determine, according to other determinations carried in the first message frame, how to send the changed system information or the key update information of the basic service set (BSS).
  • the steps shown in the communication method of FIG. 7 are only exemplary, and embodiments of the present disclosure are not limited thereto.
  • the communication method of FIG. 7 may further include the operations performed by the access point of the AP MLD in FIG. 4 .
  • the communication method in FIG. 7 may further include: receiving a second message frame under another connection different from the first connection (corresponding to operation S420_2 in FIG. 4 , in order to avoid redundancy, repeated descriptions are omitted here). ), wherein the second message frame may include another change sequence identifier related to the change of the system information of the access point corresponding to the other connection.
  • the communication method of FIG. 7 may further include: respectively sending a third message frame under the first connection and the other connection, wherein the third message frame may include system information indicating a change of the access point of the corresponding connection (corresponding to In operations S430_1 and S430_2 of FIG. 4 , in order to avoid redundancy, repeated descriptions are omitted here).
  • the 7 may further include: respectively sending a fourth message frame under the first connection and the other connection, wherein the fourth message frame may include information indicating that the system information of the correspondingly connected access point has changed Identification (corresponding to operations S410_1 and S410_2 of FIG. 4 , and repeated descriptions are omitted here in order to avoid redundancy).
  • the communication method of FIG. 7 may further include the operations performed by the access point of the AP MLD in FIG. 6 .
  • the first information of the first message frame received by the access point under the first connection may further include: system information changes of the access point corresponding to other connections different from the first connection Other changes related to sequence identification.
  • the first information may further include: connection identifiers corresponding to the first connection and/or other connections respectively.
  • the communication method in FIG. 7 may further include: sending a fifth message frame under the first connection, where the fifth message frame may include: system information indicating changes of access points corresponding to the first connection and other connections, and the connection identifiers of the first connection and/or other connections (corresponding to operation S630 of FIG. 6 , in order to avoid redundancy, repeated descriptions are omitted here).
  • the 7 may further include: sending a sixth message frame under the first connection, wherein the sixth message frame may include second information, and the second information may include: indicating an access corresponding to the first connection
  • the information identifier that the system information of the point has changed, and the information identifier indicating that the system information of the access point corresponding to other connections different from the first connection has changed (corresponding to operation S610 of FIG. 6 , in order to avoid redundancy, in Duplicate descriptions are omitted here).
  • FIG. 8 is a flowchart illustrating another communication method according to an embodiment.
  • the communication method shown in FIG. 8 can be applied to a station supporting multi-connection communication.
  • FIG. 9 is a schematic diagram illustrating interactive communication of an embodiment corresponding to the communication method shown in FIG. 8 .
  • FIG. 10 is a schematic diagram illustrating interactive communication in another embodiment corresponding to the communication method shown in FIG. 8 .
  • a seventh message frame may be received under the first connection in the multi-connection, wherein the seventh message frame may include changed system information or basic service set (BSS) of the access point corresponding to the first connection key updates.
  • the multi-connection may be a multi-connection communication established between the non-AP STA MLD and the AP MLD.
  • the seventh message frame may be a beacon frame that carries the changed system information of the access point corresponding to the first connection or the key update information of the basic service set (BSS).
  • a corresponding communication operation may be performed based on the seventh message frame.
  • the station may determine changed system information based on the information carried in the first message frame, and perform further communication operations (eg, data exchange, etc.) based on the changed system information.
  • the communication method shown in FIG. 8 is only exemplary, and the present disclosure is not limited thereto.
  • the communication method shown in FIG. 8 may further include the operations performed by the stations (eg, STA1 and STA2) in FIG. 9 .
  • the communication method of FIG. 8 may further include: respectively receiving a ninth message frame under the first connection and another connection different from the first connection, wherein the ninth message frame may include an information indicating the access point of the corresponding connection.
  • the information identification of the changed system information that is, operation S910_1 and operation S910_2 of FIG. 9 .
  • the information identifier about the access point (AP1) corresponding to the first connection may be received under the first connection (Link1); in operation S910_2, the information identifier of the access point (AP1) corresponding to the first connection may be received under another connection (Link2)
  • An information identification about an access point (AP2) corresponding to another connection is received.
  • the ninth message frame may be a beacon frame sent by a corresponding access point, and the information identifier about AP1 and the information identifier about AP2 may be respectively the change sequence fields in the corresponding beacon frames, and their meanings are similar
  • the embodiment in operations S410_1 and S410_2 of FIG. 4 in order to avoid redundancy, repeated descriptions are omitted here.
  • Operation S920_1 of FIG. 9 may correspond to step 810 of FIG. 8 .
  • the communication method shown in FIG. 8 may further include: under another connection different from the first connection, receiving an eighth message frame, wherein the eighth message frame may include a change of an access point corresponding to the other connection system information (operation S920_2 of FIG. 9 ).
  • the eighth message frame may be a beacon frame, which carries the changed system information of the access point (AP2) corresponding to the other connection or the key update information of the basic service set (BSS).
  • AP2 changed system information of the access point
  • BSS basic service set
  • the station may receive the corresponding beacon frame under the corresponding connection, which may carry the change sequence field indicating that the corresponding access point has undergone a system information change (operations S910_1 and S910_2); Different from the embodiment described in FIG. 3 and FIG. 4 , in the communication method in FIG. 9 , the station does not obtain the changed system information through the probe request frame (or ML probe request frame) and the compressed probe response frame (or ML probe response frame). , but another beacon frame may be directly received from the corresponding access point, which carries the changed system information or the key update information of the Basic Service Set (BSS) (operations S920_1 and S920_2 ).
  • BSS Basic Service Set
  • the communication method shown in FIG. 8 may further include the operations performed by the station (eg, STA1 ) in FIG. 10 .
  • a tenth message frame may be received under the first connection.
  • the tenth message frame may include an information identifier indicating that the system information of the access points corresponding to the first connection and other connections different from the first connection have changed.
  • the tenth message frame may be a beacon frame received from the corresponding access point, and the information identification may be a change sequence field in a reduced neighbor report information element of the beacon frame.
  • the tenth message frame (beacon frame) received under the first connection may include not only the access point corresponding to the present connection (eg, the first connection)
  • the information identifier of the change of the system information of the other connection may also include the information identifier of the change of the system information of the access point corresponding to the other connection.
  • the tenth message frame may further include a connection identifier, so as to indicate which connection the corresponding information identifier corresponds to.
  • Operation S1010 of FIG. 10 may be similar to the descriptions of step 510 of FIG. 5 and operation S610 of FIG. 6 , and repeated descriptions are omitted here in order to avoid redundancy.
  • a seventh message frame may be received under the first connection, wherein the seventh message frame may include changed system information of an access point corresponding to the first connection.
  • the seventh message frame may further include: changed system information of access points corresponding to other connections different from the first connection, and connection identifiers of the first connection and/or other connections.
  • the seventh message frame may be a beacon frame.
  • a station may receive a beacon frame under one connection, and the beacon frame may carry a change sequence field and a connection identifier indicating that the system information of the connection and other connected access points have changed (operation S1010 ) Afterwards, unlike the embodiments described with reference to Fig. 5 and Fig. 6, in the communication method of Fig. 10, the station does not pass a probe request frame (or ML probe request frame) and a compressed probe response frame (or ML probe response frame) to The changed system information can be obtained by receiving another beacon frame, which can carry the changed system information of the access point of this connection, the connection identifier of this connection, and the information of other connected access points.
  • the beacon frame of the changed system information and the connection identification of other connections (operation S1020).
  • FIG. 11 is a flowchart illustrating another communication method according to an embodiment. The communication method shown in FIG. 11 can be applied to an access point supporting multi-connection communication.
  • a seventh message frame may be determined.
  • a seventh message frame may be sent under the first connection in the multiple connections, where the seventh message frame may include changed system information of the access point corresponding to the first connection.
  • the seventh message frame may be determined under the same connection as the first connection in step 1120, however, the present disclosure is not limited thereto, and the seventh message frame may also be determined under a connection different from the first connection frame. In the embodiment of the present disclosure, there may be many ways to determine the seventh message frame.
  • the AP MLD may generate the first message frame according to at least one of the following conditions: network conditions, load conditions, the sending/receiving device's Hardware capabilities, service types, and related protocols are stipulated; there is no specific limitation on this embodiment of the present disclosure.
  • the AP MLD may also acquire the first message frame from an external device, which is not specifically limited in this embodiment of the present disclosure.
  • the communication method shown in FIG. 11 is only exemplary, and the present disclosure is not limited thereto.
  • the communication method shown in FIG. 11 may further include the operations performed by the access points (eg, AP1 and AP2 ) in FIG. 9 .
  • the access points eg, AP1 and AP2
  • the communication method of FIG. 11 may further include: respectively sending a ninth message frame under the first connection and another connection, wherein the ninth message frame may include a message indicating that the system information of the access point connected to the corresponding connection has changed.
  • Information identification (operations S910_1 and S910_2 of FIG. 9 ).
  • the communication method of FIG. 11 may further include: under another connection different from the first connection, sending an eighth message frame, wherein the eighth message frame may include the system of the change of the access point corresponding to the other connection information (operation S920_2 of FIG. 9 ).
  • the communication method shown in FIG. 11 may further include the operations performed by the access point (eg, AP1 ) in FIG. 10 .
  • the communication method shown in FIG. 11 may further include: under the first connection, sending a tenth message frame, wherein the tenth message frame may include a connection indicating a connection corresponding to the first connection and other connections different from the first connection.
  • An information flag indicating that the system information of the in-point has changed (S1010 in FIG. 10 ).
  • the communication method shown in FIG. 11 may further include: under the first connection, sending a seventh message frame, where the seventh message frame may include changed system information of the access point corresponding to the first connection, and in addition, The seventh message frame may further include: changed system information of access points corresponding to other connections different from the first connection, and connection identifiers of the first connection and/or other connections (S1020 of FIG. 10 ).
  • FIG. 12 is a block diagram illustrating a communication device 1200 according to an embodiment.
  • the communication apparatus 1200 of FIG. 12 may include a processing module 1210 and a transceiver module 1220 .
  • the communication apparatus 1200 shown in FIG. 12 may be applied to a station supporting multi-connection communication.
  • the processing module 1210 may be configured to: determine the first message frame; the transceiver module 1220 may be configured to: send the first message frame under the first connection in the multiple connections, wherein the first message frame may include the first message frame information, the first information may include a first change sequence identifier related to the change of the system information of the access point corresponding to the first connection.
  • the communication apparatus 1200 shown in FIG. 12 can perform the communication methods of FIGS. 2 , 3 and 5 and the operations performed by the non-AP STA MLD in FIGS. 4 and 6 . To avoid redundancy, repeated repetitions are omitted here. describe.
  • the transceiver module 1220 may be configured to: receive a seventh message frame under the first connection in the multiple connections, wherein the seventh message frame may include the changed system information of the access point corresponding to the first connection;
  • the processing module 1210 may be configured to perform a corresponding communication operation based on the seventh message frame.
  • the communication apparatus 1200 shown in FIG. 12 may perform the communication method of FIG. 8 and the operations performed by the non-AP STA MLD in FIGS. 9 and 10 , and repeated descriptions are omitted here in order to avoid redundancy.
  • the communication apparatus 1200 shown in FIG. 12 may be applied to an access point supporting multi-connection communication.
  • the transceiver module 1220 may be configured to receive a first message frame under a first connection in the multiple connections, where the first message frame may include first information, and the first information may include a first message corresponding to the first connection
  • the first change sequence identifier related to the system information change of the access point; the processing module 1210 may be configured to: perform a corresponding communication operation based on the first message frame.
  • the communication apparatus 1200 shown in FIG. 12 may perform the communication method of FIG. 7 and the operations performed by the AP MLD in FIGS. 4 and 6 , and repeated descriptions are omitted here in order to avoid redundancy.
  • the processing module 1210 may be configured to: determine the seventh message frame; the transceiver module 1220 may be configured to: send the seventh message frame under the first connection in the multiple connections, wherein the seventh message frame may include a Changed system information of the access point corresponding to the first connection.
  • the communication apparatus 1200 shown in FIG. 12 may perform the communication method of FIG. 11 and the operations performed by the AP MLD in FIGS. 9 and 10 , and repeated descriptions are omitted here in order to avoid redundancy.
  • the communication apparatus 1200 shown in FIG. 12 is only exemplary, and embodiments of the present disclosure are not limited thereto, for example, the communication apparatus 1200 may further include other modules, such as a memory module and the like. Furthermore, the various modules in the communication apparatus 1200 may be combined into more complex modules, or may be divided into more separate modules.
  • the communication method and communication device can provide a concise method for a site to acquire changed system information, meet the requirements of multi-connection communication, and improve spectrum utilization.
  • the embodiment of the present disclosure further provides an electronic device, the electronic device includes a processor and a memory; wherein, the memory stores machine-readable instructions (or may referred to as a "computer program"); a processor for executing machine-readable instructions to implement the methods described with reference to FIGS. 2 to 11 .
  • the electronic device includes a processor and a memory; wherein, the memory stores machine-readable instructions (or may referred to as a "computer program"); a processor for executing machine-readable instructions to implement the methods described with reference to FIGS. 2 to 11 .
  • Embodiments of the present disclosure also provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the methods described with reference to FIG. 2 to FIG. 11 are implemented.
  • a processor may be used to implement or execute various exemplary logical blocks, modules and circuits described in connection with the present disclosure, for example, a CPU (Central Processing Unit, central processing unit), general processing device, DSP (Digital Signal Processor, data signal processor), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field Programmable Gate Array, Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • a processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the memory may be, for example, ROM (Read Only Memory), RAM (Random Access Memory), EEPROM (Electrically Erasable Programmable Read Only Memory) Read memory), CD-ROM (Compact Disc Read Only Memory, CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic A storage device, or any other medium that can be used to carry or store program code in the form of instructions or data structures and that can be accessed by a computer, without limitation.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • EEPROM Electrically Erasable Programmable Read Only Memory
  • CD-ROM Compact Disc Read Only Memory
  • CD-ROM Compact Disc Read Only Memory
  • optical disc storage including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.
  • magnetic disk storage media or other magnetic A storage device, or any other medium that can be used to carry or store program code in the form of instructions or data structures and that can

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Abstract

Provided in the present disclosure are a communication method and communication apparatus under multiple links. The communication method can comprise: determining a first message frame; and sending the first message frame under a first link in multiple links, wherein the first message frame comprises first information, and the first information comprises a first change sequence identifier related to a system information change of an access point corresponding to the first link. By means of the technical solution provided in the embodiments of the present disclosure, the requirements for multi-link communication can be met, and the spectrum utilization rate can be improved.

Description

多连接下的通信方法和通信装置Communication method and communication device under multi-connection 技术领域technical field
本公开涉及通信领域，更具体地说，涉及多连接下的通信方法和通信装置。The present disclosure relates to the field of communication, and more particularly, to a communication method and communication device under multiple connections.
背景技术Background technique
目前的Wi-Fi技术所研究的范围为：320MHz的带宽传输、多个频段的聚合及协同等，期望能够相对于现有的标准提高至少四倍的速率以及吞吐量，其主要的应用场景为视频传输、AR(Augmented Reality，增强现实)、VR(Virtual Reality，虚拟现实)等。The current research scope of Wi-Fi technology is: 320MHz bandwidth transmission, aggregation and coordination of multiple frequency bands, etc. It is expected to increase the rate and throughput by at least four times compared with the existing standards. The main application scenarios are: Video transmission, AR (Augmented Reality, augmented reality), VR (Virtual Reality, virtual reality), etc.
多个频段的聚合及协同是指设备间同时在2.4GHz、5GHz及6-7GHz的频段下进行通信，对于设备间同时在多个频段下通信需要定义新的MAC(Media Access Control，介质访问控制)机制来进行管理。此外，还期望多频段的聚合及协同能够支持低时延传输。The aggregation and collaboration of multiple frequency bands refers to the simultaneous communication between devices in the frequency bands of 2.4GHz, 5GHz and 6-7GHz. For the simultaneous communication between devices in multiple frequency bands, a new MAC (Media Access Control) needs to be defined. ) mechanism to manage. In addition, it is also expected that the aggregation and coordination of multiple frequency bands can support low-latency transmission.
目前多频段的聚合及***技术中将支持的最大带宽为320MHz(160MHz+160MHz)，此外还可能会支持240MHz(160MHz+80MHz)及其它带宽。The current multi-band aggregation and system technology will support a maximum bandwidth of 320MHz (160MHz+160MHz), and may also support 240MHz (160MHz+80MHz) and other bandwidths.
在目前的技术中，站点(STA：Station)和接入点(AP：Access Point)可以是多连接设备(MLD：multi-link device)，即，支持在同一时刻能够在多连接下同时发送和/或接收的功能。因此，在目前的技术中，STA与AP之间可以存在多个连接，并且对这两种设备在多连接下的通信进行研究。具体地，正在对支持多连接通信的接入点的***信息发生变化的情况进行研究。In the current technology, a station (STA: Station) and an access point (AP: Access Point) can be a multi-link device (MLD: multi-link device), that is, it supports the ability to send and receive messages simultaneously under multiple connections at the same time. / or receive function. Therefore, in the current technology, there may be multiple connections between the STA and the AP, and the communication of these two devices under the multiple connections is studied. Specifically, research is being conducted on a case where the system information of an access point supporting multi-connection communication changes.
发明内容SUMMARY OF THE INVENTION
本公开的各方面将至少解决上述问题和/或缺点。本公开的各种实施 例提供以下技术方案：Aspects of the present disclosure are to address at least the above-mentioned problems and/or disadvantages. Various embodiments of the present disclosure provide the following technical solutions:
根据本公开的示例实施例提供一种多连接下的通信方法。所述通信方法可以应用于支持多连接通信的站点，并且包括：确定第一消息帧；在多连接中的第一连接下发送第一消息帧，其中，所述第一消息帧包括第一信息，所述第一信息包括与所述第一连接所对应的接入点的***信息变化有关的第一改变序列标识。An exemplary embodiment according to the present disclosure provides a communication method under multiple connections. The communication method can be applied to a station supporting multi-connection communication, and includes: determining a first message frame; sending a first message frame under a first connection in the multi-connection, wherein the first message frame includes first information , the first information includes a first change sequence identifier related to the change of the system information of the access point corresponding to the first connection.
根据本公开的示例实施例提供一种多连接下的通信方法。所述通信方法可以应用于支持多连接通信的接入点，并且包括：在多连接中的第一连接下接收第一消息帧，其中，所述第一消息帧包括第一信息，所述第一信息包括与所述第一连接所对应的接入点的***信息变化有关的第一改变序列标识；基于所述第一消息帧，执行相应的通信操作。An exemplary embodiment according to the present disclosure provides a communication method under multiple connections. The communication method can be applied to an access point supporting multi-connection communication, and includes: receiving a first message frame under a first connection in the multi-connection, wherein the first message frame includes first information, and the first message frame includes first information. One piece of information includes a first change sequence identifier related to the change of the system information of the access point corresponding to the first connection; and based on the first message frame, a corresponding communication operation is performed.
根据本公开的示例实施例提供一种多连接下的通信方法。所述通信方法可以应用于支持多连接通信的站点，并且包括：在所述多连接中的第一连接下接收第七消息帧，其中，所述第七消息帧包括与所述第一连接对应的接入点的变化的***信息；基于所述第七消息帧，执行相应的通信操作。An exemplary embodiment according to the present disclosure provides a communication method under multiple connections. The communication method can be applied to a station supporting multi-connection communication, and includes: receiving a seventh message frame under a first connection in the multi-connection, wherein the seventh message frame includes a frame corresponding to the first connection The changed system information of the access point; based on the seventh message frame, perform a corresponding communication operation.
根据本公开的示例实施例提供一种多连接下的通信方法。所述通信方法可以应用于支持多连接通信的接入点，并且包括：确定第七消息帧；在所述多连接中的第一连接下发送第七消息帧，其中，所述第七消息帧包括与所述第一连接对应的接入点的变化的***信息。An exemplary embodiment according to the present disclosure provides a communication method under multiple connections. The communication method can be applied to an access point supporting multi-connection communication, and includes: determining a seventh message frame; sending a seventh message frame under a first connection in the multi-connection, wherein the seventh message frame System information including changes to the access point corresponding to the first connection.
根据本公开的示例实施例提供一种多连接下的通信装置。所述通信装置可以应用于支持多连接通信的站点，并且包括：处理模块，被配置为：确定第一消息帧；收发模块，被配置为：在所述多连接中的第一连接下发送第一消息帧，其中，所述第一消息帧包括第一信息，所述第一信息包括与所述第一连接所对应的接入点的***信息变化有关的第一改变序列标识。An exemplary embodiment according to the present disclosure provides a multi-connection communication device. The communication device can be applied to a station supporting multi-connection communication, and includes: a processing module configured to: determine a first message frame; a transceiver module configured to: send a first message frame under the first connection in the multi-connection A message frame, wherein the first message frame includes first information, and the first information includes a first change sequence identifier related to the change of the system information of the access point corresponding to the first connection.
根据本公开的示例实施例提供一种多连接下的通信装置。所述通信装置可以应用于支持多连接通信的接入点，并且包括：收发模块，被配置为：在所述多连接中的第一连接下接收第一消息帧，其中，所述第一消息帧包括第一信息，所述第一信息包括与所述第一连接所对应的接入点的***信 息变化有关的第一改变序列标识；处理模块，被配置为：基于所述第一消息帧，执行相应的通信操作。An exemplary embodiment according to the present disclosure provides a multi-connection communication device. The communication apparatus can be applied to an access point supporting multi-connection communication, and includes a transceiver module configured to: receive a first message frame under a first connection in the multi-connection, wherein the first message The frame includes first information, and the first information includes a first change sequence identifier related to the change of the system information of the access point corresponding to the first connection; the processing module is configured to: based on the first message frame , and perform the corresponding communication operation.
根据本公开的示例实施例提供一种多连接下的通信装置。所述通信装置可以应用于支持多连接通信的站点，并且包括：收发模块，被配置为：在所述多连接中的第一连接下接收第七消息帧，其中，所述第七消息帧包括与所述第一连接对应的接入点的变化的***信息；处理模块，被配置为：基于所述第七消息帧，执行相应的通信操作。An exemplary embodiment according to the present disclosure provides a multi-connection communication device. The communication apparatus may be applied to a station supporting multi-connection communication, and includes: a transceiver module configured to: receive a seventh message frame under a first connection in the multi-connection, wherein the seventh message frame includes Changed system information of the access point corresponding to the first connection; the processing module is configured to: perform a corresponding communication operation based on the seventh message frame.
根据本公开的示例实施例提供一种多连接下的通信装置。所述通信装置可以应用于支持多连接通信的接入点，并且包括：处理模块，被配置为：确定第七消息帧；收发模块，被配置为：在所述多连接中的第一连接下发送第七消息帧，其中，所述第七消息帧包括与所述第一连接对应的接入点的变化的***信息。An exemplary embodiment according to the present disclosure provides a multi-connection communication device. The communication device can be applied to an access point supporting multi-connection communication, and includes: a processing module configured to: determine a seventh message frame; a transceiver module configured to: under the first connection in the multi-connection A seventh message frame is sent, wherein the seventh message frame includes the changed system information of the access point corresponding to the first connection.
根据本公开的示例实施例提供了一种电子装置。所述电子装置包括存储器、处理器及存储在所述存储器上并在所述处理器上可运行的计算机程序。所述处理器执行所述计算机程序时实现如上所述的方法。An electronic device is provided according to example embodiments of the present disclosure. The electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor. The processor executes the computer program to implement the method as described above.
根据本公开的示例实施例提供了一种计算机可读存储介质。所述计算机可读存储介质上存储有计算机程序。该计算机程序被处理器执行时实现如上所述的方法。A computer-readable storage medium is provided according to example embodiments of the present disclosure. A computer program is stored on the computer-readable storage medium. The computer program, when executed by a processor, implements the method as described above.
本公开的示例实施例提供的技术方案能够满足多连接通信需求，提高频谱利用率。The technical solutions provided by the exemplary embodiments of the present disclosure can meet the multi-connection communication requirements and improve the spectrum utilization rate.
附图说明Description of drawings
通过参照附图详细描述本公开的示例实施例，本公开实施例的上述以及其他特征将更加明显，其中：The above and other features of the embodiments of the present disclosure will become more apparent by describing in detail the example embodiments of the present disclosure with reference to the accompanying drawings, wherein:
图1是示出多连接下的通信场景的示例性示图。FIG. 1 is an exemplary diagram illustrating a communication scenario under multiple connections.
图2是示出根据实施例的通信方法的流程图。FIG. 2 is a flowchart illustrating a communication method according to an embodiment.
图3是示出根据实施例的通信方法的详细流程图。FIG. 3 is a detailed flowchart illustrating a communication method according to an embodiment.
图4是示出根据图3所示的实施例的交互通信的示意图。FIG. 4 is a schematic diagram illustrating interactive communication according to the embodiment shown in FIG. 3 .
图5是示出根据实施例的通信方法的另一详细流程图。FIG. 5 is another detailed flowchart illustrating a communication method according to an embodiment.
图6是示出根据图5所示的实施例的交互通信的示意图。FIG. 6 is a schematic diagram illustrating interactive communication according to the embodiment shown in FIG. 5 .
图7是示出根据实施例的另一通信方法的流程图。FIG. 7 is a flowchart illustrating another communication method according to an embodiment.
图8是示出根据实施例的另一通信方法的流程图。FIG. 8 is a flowchart illustrating another communication method according to an embodiment.
图9是示出图8所示的通信方法的实施例的交互通信的示意图。FIG. 9 is a schematic diagram illustrating interactive communication of the embodiment of the communication method shown in FIG. 8 .
图10是示出图8所示的通信方法的另一实施例的交互通信的示意图。FIG. 10 is a schematic diagram illustrating interactive communication of another embodiment of the communication method shown in FIG. 8 .
图11是示出根据实施例的另一通信方法的流程图。FIG. 11 is a flowchart illustrating another communication method according to an embodiment.
图12是示出根据实施例的通信装置的框图。12 is a block diagram illustrating a communication apparatus according to an embodiment.
具体实施方式Detailed ways
提供以下参照附图的描述，以帮助全面理解由所附权利要求及其等同物限定的本公开的各种实施例。本公开的各种实施例包括各种具体细节，但是这些具体细节仅被认为是示例性的。此外，为了清楚和简洁，可以省略对公知的技术、功能和构造的描述。The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the appended claims and their equivalents. Various embodiments of the present disclosure include various specific details, which are to be regarded as merely exemplary. Also, descriptions of well-known techniques, functions, and constructions may be omitted for clarity and conciseness.
在本公开中使用的术语和词语不限于书面含义，而是仅被发明人所使用，以能够清楚和一致的理解本公开。因此，对于本领域技术人员而言，提供本公开的各种实施例的描述仅是为了说明的目的，而不是为了限制的目的。The terms and words used in this disclosure are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, the descriptions of various embodiments of the present disclosure are provided for purposes of illustration and not of limitation to those skilled in the art.
应当理解，除非上下文另外清楚地指出，否则这里使用的单数形式“一”、“一个”、“所述”和“该”也可以包括复数形式。应该进一步理解的是，本公开中使用的措辞“包括”是指存在所描述的特征、整数、步骤、操作、元件和/或组件，但是并不排除存在或添加一个或多个其他特征、整数、步骤、操作、元件、组件和/或它们的组。It should be understood that the singular forms "a", "an", "the" and "the" as used herein can also include the plural forms unless the context clearly dictates otherwise. It should be further understood that the word "comprising" as used in this disclosure refers to the presence of the described features, integers, steps, operations, elements and/or components, but does not preclude the presence or addition of one or more other features, integers , steps, operations, elements, components and/or groups thereof.
将理解的是，尽管术语“第一”、“第二”等在本文中可以用于描述各种元素，但是这些元素不应受这些术语的限制。这些术语仅用于将一个元素与另一个元素区分开。因此，在不脱离示例实施例的教导的情况下，下面讨论的第一元素可以被称为第二元素。此外，本文使用的术语“和/或”或者表述“……中的至少一个/至少一者”包括一个或多个相关列出的项目的任何和所有组合。It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element discussed below could be termed a second element without departing from the teachings of example embodiments. Further, as used herein, the term "and/or" or the expression "at least one/at least one of" includes any and all combinations of one or more of the associated listed items.
除非另外定义，这里使用的所有术语(包括技术术语和科学术语)，具有与本公开所属领域中的普通技术人员的一般理解相同的意义。Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
图1是示出多连接下的通信场景的示例性示图。FIG. 1 is an exemplary diagram illustrating a communication scenario under multiple connections.
在无线局域网中，一个基本服务集(BSS)可以由AP以及与AP通信的一个或多个站点(STA)构成。一个基本服务集可以通过其AP连接到分配***DS(Distribution System)，然后再接入到另一个基本服务集，构成扩展的服务集ESS(Extended Service Set)。In a wireless local area network, a basic service set (BSS) may consist of an AP and one or more stations (STA) that communicate with the AP. A basic service set can be connected to the distribution system DS (Distribution System) through its AP, and then connected to another basic service set to form an extended service set ESS (Extended Service Set).
AP是用于无线网络的无线交换机，也是无线网络的核心。AP设备可以用作无线基站，主要是用来连接无线网络及有线网络的桥接器。利用这种接入点AP，可以整合有线及无线网络。AP is a wireless switch for wireless network, and it is also the core of wireless network. AP equipment can be used as a wireless base station, mainly used as a bridge for connecting wireless networks and wired networks. With this access point AP, wired and wireless networks can be integrated.
AP可以包括软件应用和/或电路，以使无线网络中的其他类型节点可以通过AP与无线网络外部及内部进行通信。在一些示例中，作为示例，AP可以是配备有Wi-Fi(Wireless Fidelity，无线保真)芯片的终端设备或网络设备。The AP may include software applications and/or circuitry to enable other types of nodes in the wireless network to communicate with the outside and inside of the wireless network through the AP. In some examples, as an example, the AP may be a terminal device or a network device equipped with a Wi-Fi (Wireless Fidelity, wireless fidelity) chip.
作为示例，站点(STA)可以包括但不限于：蜂窝电话、智能电话、可穿戴设备、计算机、个人数字助理(PDA)、个人通信***(PCS)设备、个人信息管理器(PIM)、个人导航设备(PND)、全球定位***、多媒体设备、物联网(IoT)设备等。By way of example, a station (STA) may include, but is not limited to, cellular phones, smart phones, wearable devices, computers, personal digital assistants (PDAs), personal communication system (PCS) devices, personal information managers (PIMs), personal navigation Devices (PND), Global Positioning Systems, Multimedia Devices, Internet of Things (IoT) devices, etc.
在本公开的示例实施例中，AP和STA可以支持多连接的设备，例如，可以被分别表示为AP MLD和non-AP STA MLD。为了便于描述，在下文中，主要描述一个AP MLD与一个non-AP STA MLD在多连接下进行通信的示例，然而，本公开的示例实施例不限于此。In an example embodiment of the present disclosure, APs and STAs may support multi-connected devices, for example, may be denoted as AP MLD and non-AP STA MLD, respectively. For convenience of description, hereinafter, an example in which one AP MLD communicates with one non-AP STA MLD under multiple connections is mainly described, however, exemplary embodiments of the present disclosure are not limited thereto.
在图1中，仅作为示例性的，AP MLD可以表示支持多连接通信功能的接入点，non-AP STA MLD可以表示支持多连接通信功能的站点。参照图1，AP MLD可以工作在三个连接下，如图1所示，AP MLD包括的附属接入点AP1、AP2和AP3可以分别对应于三个连接；non-AP STA MLD也可以工作在三个连接下，如图1所示，non-AP STA MLD包括的附属站点STA1、STA2和STA3可以分别对应于三个连接。在图1的示例中，假设AP1与STA1通过对应的第一连接Link 1进行通信，类似地，AP2和AP3分别通过第二连接Link 2和第三连接Link 3与STA2和STA3进行通信。此外，Link 1至Link 3可以是不同频率下的多个连接，例如，2.4GHz、5GHz、6GHz下的连接等，或2.4GHz、5GHz、6GHz下的几个相同或不同带宽的连接。此外，在每个连接下可以存在多个信道。 然而，应该理解的是，图1所示的通信场景仅是示例性的，本发明构思不限于此，例如，AP MLD可以连接到多个non-AP STA MLD，或者在每个连接下，AP可以与多个其他类型的站点进行通信。In FIG. 1, only as an example, the AP MLD may represent an access point supporting the multi-connection communication function, and the non-AP STA MLD may represent a station supporting the multi-connection communication function. Referring to Figure 1, the AP MLD can work under three connections. As shown in Figure 1, the AP MLD includes the auxiliary access points AP1, AP2 and AP3, which can correspond to three connections respectively; the non-AP STA MLD can also work in the Under three connections, as shown in Figure 1, the affiliated stations STA1, STA2 and STA3 included in the non-AP STA MLD may correspond to three connections respectively. In the example of FIG. 1 , it is assumed that AP1 and STA1 communicate through a corresponding first connection Link 1, and similarly, AP2 and AP3 communicate with STA2 and STA3 through a second connection Link 2 and a third connection Link 3, respectively. In addition, Link 1 to Link 3 may be multiple connections at different frequencies, for example, connections at 2.4GHz, 5GHz, 6GHz, etc., or several connections at 2.4GHz, 5GHz, 6GHz with the same or different bandwidths. Furthermore, multiple channels can exist under each connection. However, it should be understood that the communication scenario shown in FIG. 1 is only exemplary, and the inventive concept is not limited thereto, for example, an AP MLD may be connected to a plurality of non-AP STA MLDs, or under each connection, an AP Can communicate with several other types of sites.
如果接入点的***信息(SI，system information)或基本服务集(BSS：Basic service set)的关键更新(critical update)信息发生变化，接入点可以在例如信标(beacon)帧中设置携带改变序列(change sequence)域的值。如果站点接收到的change sequence域的值不同于上一次接收到的值，则表示***信息发送了变化。站点可以通过两种方法获得变化的***信息：在一种方法中，站点接收AP广播的DTIM(数据待传指示传递，Delivery Traffic Indication Map)信标帧，该DTIM信标帧携带变化的***信息；在另一种方法中，站点发送探测请求(probe request)帧，接入点回复压缩探测响应(probe response)帧，该压缩探测响应(probe response)帧携带变化的***信息。然而，在现有技术中，这两种方法仅涉及单连接通信场景，而不适用于参照图1描述的多连接通信场景，因此需要对此进行改进。If the system information (SI, system information) of the access point or the critical update (critical update) information of the basic service set (BSS: Basic service set) changes, the access point can set the carry in, for example, a beacon (beacon) frame. Change the value of the change sequence field. If the value of the change sequence field received by the site is different from the value received last time, it means that the system information has changed. The station can obtain the changed system information in two ways: In one method, the station receives the DTIM (Data pending indication transfer, Delivery Traffic Indication Map) beacon frame broadcast by the AP, and the DTIM beacon frame carries the changed system information. In another method, the station sends a probe request (probe request) frame, and the access point replies with a compressed probe response (probe response) frame that carries the changed system information. However, in the prior art, these two methods only involve a single-connection communication scenario, and are not applicable to the multi-connection communication scenario described with reference to FIG. 1 , so it needs to be improved.
在接入点与站点之间存在多个连接的情况下，由于接入点及站点可以在多连接下进行通信，因此如果AP MLD的***信息发生变化，则可以通过例如精简邻居报告(Reduced neighbor report)信息元素广播出来。例如，针对同一AP MLD的一个AP的Change Sequence域可以携带在精简邻居报告信息元素中；针对同一AP MLD的其他AP中的每个AP的Change Sequence域可以携带在与该一个AP相对应的精简邻居报告信息元素的TBTT(target beacon transmission time)信息域中的多连接设备参数(MLD Parameters)子域中。在上述实施例中，虽然描述了在SI发生变化时AP MLD标识SI发生变化的方法，但是缺乏在多连接通信的情况下接入点向站点通知变化的SI或基本服务集(BSS：Basic service set)的关键更新(critical update)信息的具体实施方式。为此，提供了根据本发明构思的示例实施例的通信方法和通信装置。In the case of multiple connections between the access point and the site, since the access point and the site can communicate under multiple connections, if the system information of the AP MLD changes, it can be reported through, for example, Reduced Neighbor Report (Reduced Neighbor Report). report) information element broadcast out. For example, the Change Sequence field of one AP of the same AP MLD can be carried in the reduced neighbor report information element; the Change Sequence field of each AP in other APs of the same AP MLD can be carried in the simplified neighbor report corresponding to the one AP. In the multi-connection device parameters (MLD Parameters) subfield of the TBTT (target beacon transmission time) information field of the neighbor report information element. In the above-mentioned embodiments, although the method for the AP MLD to identify the SI changes when the SI changes is described, it lacks the SI or Basic Service Set (BSS: Basic service) that the access point notifies the station of the change in the case of multi-connection communication. The specific implementation of the critical update (critical update) information of the set). To this end, a communication method and a communication apparatus according to example embodiments of the inventive concept are provided.
图2是示出根据本公开的实施例的通信方法的流程图。图2所示的通信方法可以应用于支持多连接通信的站点(non-AP STA MLD)。FIG. 2 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. The communication method shown in FIG. 2 can be applied to a station supporting multi-connection communication (non-AP STA MLD).
参照图2，在操作210中，可以确定第一消息帧。在操作220中，可以在多连接中的第一连接下发送第一消息帧。根据实施例，多连接可以指AP MLD 与non-AP STA MLD之间建立的能够进行通信的多个连接。根据实施例，可以在用于发送第一消息帧的第一连接下确定第一消息帧，然而，本公开不限于此，例如，确定第一消息帧和发送第一消息帧可以在不同的连接下进行。根据实施例，第一消息帧可以包括第一信息，该第一信息可以包括与第一连接所对应的接入点的***信息变化有关的第一改变序列标识。根据实施例，该第一改变序列标识可以用于指示接入点发送变化的***信息或基本服务集(BSS)的关键更新信息。Referring to FIG. 2, in operation 210, a first message frame may be determined. In operation 220, a first message frame may be sent under a first connection in the multiple connections. According to an embodiment, a multi-connection may refer to a plurality of connections established between the AP MLD and the non-AP STA MLD capable of communicating. According to an embodiment, the first message frame may be determined under the first connection for transmitting the first message frame, however, the present disclosure is not limited thereto, for example, determining the first message frame and transmitting the first message frame may be under different connections proceed below. According to an embodiment, the first message frame may include first information, and the first information may include a first change sequence identifier related to a system information change of the access point corresponding to the first connection. According to an embodiment, the first change sequence identification may be used to instruct the access point to send changed system information or key update information of a basic service set (BSS).
作为示例，第一消息帧可以是探测请求帧或多连接(ML，multi-link)探测请求帧，第一信息可以是探测请求帧或ML探测请求帧中的ML信息元素，并且第一改变序列标识可以是ML信息元素中的改变序列(change sequence)域。根据本公开的实施例，图2所示的通信方法可以是在站点确定出第一连接所对应的接入点的***信息发生了变化之后执行的操作。例如，在操作210之前，站点可以从接入点接收信标帧，并且根据信标帧中的change sequence域确定接入点的***信息发生了变化，然而，由于站点例如在经过特定时间段之后未从接入点接收到变化的***信息或基本服务集(BSS)的关键更新信息，因此站点通过在探测请求携带change sequence域进行主动地询问。As an example, the first message frame may be a probe request frame or a multi-link (ML, multi-link) probe request frame, the first information may be a probe request frame or an ML information element in an ML probe request frame, and the first change sequence The identifier may be the change sequence field in the ML information element. According to an embodiment of the present disclosure, the communication method shown in FIG. 2 may be an operation performed after the station determines that the system information of the access point corresponding to the first connection has changed. For example, before operation 210, the station may receive a beacon frame from the access point, and determine that the system information of the access point has changed according to the change sequence field in the beacon frame, however, since the station, for example, after a certain period of time has elapsed Changed system information or critical updates to the Basic Service Set (BSS) have not been received from the access point, so the station proactively interrogates by carrying the change sequence field in the probe request.
根据本公开的实施例，接入点的***信息发生变化可以指信标帧中的元素发生关键更新，例如，下面的事件中的至少一个可以被归为关键更新：According to an embodiment of the present disclosure, a change in the system information of an access point may indicate that a critical update occurs to an element in the beacon frame, for example, at least one of the following events may be classified as a critical update:
a)包含信道切换声明元素(Inclusion of a Channel Switch Announcement element)a) Inclusion of a Channel Switch Announcement element
b)包含扩展信道切换声明元素(Inclusion of an Extended Channel Switch Announcement element)b) Inclusion of an Extended Channel Switch Announcement element (Inclusion of an Extended Channel Switch Announcement element)
c)EDCA参数元素的改变(Modification of the EDCA parameters element)c) Modification of the EDCA parameters element
d)包含静默元素(Inclusion of a Quiet element)d) Inclusion of a Quiet element
e)DSSS参数集的改变(Modification of the DSSS Parameter Set)e) Modification of the DSSS Parameter Set
f)HT操作元素的改变(Modification of the HT Operation element)f) Modification of the HT Operation element
g)包含宽带宽信道切换元素(Inclusion of a Wide Bandwidth Channel Switch element)g) Inclusion of a Wide Bandwidth Channel Switch element
h)包含信道切换包装元素(Inclusion of a Channel Switch Wrapper element)h) Inclusion of a Channel Switch Wrapper element
i)包含操作模式通知元素(Inclusion of an Operating Mode Notification element)i) Inclusion of an Operating Mode Notification element
j)包含静默信道元素(Inclusion of a Quiet Channel element)j) Inclusion of a Quiet Channel element
k)VHT操作元素的改变(Modification of the VHT Operation element)等。k) Modification of the VHT Operation element, etc.
当出现如上所示的事件中的至少一项时，则***信息发生变化，例如，AP可以在下一个传输的数据待传指示(TIM)帧中增大检查信标(Check Beacon)域的值(对256取模)。此外，将理解的是，上述所示的事件仅是示例性的，本公开的实施例不限于此，其他***信息事件也是可行的，例如，EHT操作元素的改变(Modification of the EHT Operation element)、HE操作元素的改变(Modification of the HE Operation element)、***广播TWT元素(Insertion of a Broadcast TWT element)、包含BSS颜色改变声明元素(Inclusion of the BSS Color Change Announcement element)、MU EDCA参数集元素的改变(Modification of the MU EDCA Parameter Set element)、空间复用参数集元素的改变(Modification of the Spatial Reuse Parameter Set element)、UORA参数集元素的改变(Modification of the UORA Parameter Set element)等。When at least one of the events shown above occurs, the system information changes. For example, the AP can increase the value of the Check Beacon field in the next transmitted data pending indication (TIM) frame ( modulo 256). In addition, it will be understood that the events shown above are only exemplary, and embodiments of the present disclosure are not limited thereto, and other system information events are possible, such as, for example, Modification of the EHT Operation element , Modification of the HE Operation element, Insertion of a Broadcast TWT element, Inclusion of the BSS Color Change Announcement element, MU EDCA parameter set element Modification of the MU EDCA Parameter Set element, Modification of the Spatial Reuse Parameter Set element, Modification of the UORA Parameter Set element, etc.
在操作210中，站点可以根据各种方式来确定第一消息帧。例如，可以根据先前从相应接入点接收到的信标帧确定出第一消息帧。例如，站点可以将第一消息帧中的第一改变序列标识确定为与接收到的信标帧中的change sequence域的值不同的值。当接入点接收到第一消息帧时，可以根据第一消息帧携带的change sequence域的值确定出是否需要向站点发送变化的***信息或基本服务集(BSS)的关键更新信息，稍后将在下文进行消息描述。在下文中，为了描述的方便，以***信息作为示例进行描述，然而，本公开不限于此，关于***信息的示例也可以应用于基本服务集(BSS)的关键更新信息。In operation 210, the station may determine the first message frame according to various manners. For example, the first message frame may be determined from a beacon frame previously received from the corresponding access point. For example, the station may determine the first change sequence identifier in the first message frame to be a value different from the value of the change sequence field in the received beacon frame. When the access point receives the first message frame, it can determine whether it needs to send the changed system information or the key update information of the basic service set (BSS) to the station according to the value of the change sequence field carried in the first message frame. The message description will be made below. Hereinafter, for the convenience of description, the system information is used as an example for description, however, the present disclosure is not limited thereto, and the example about the system information may also be applied to the key update information of the Basic Service Set (BSS).
图2描述了针对多连接中的第一连接所对应的接入点的***信息发生变 化时的操作，而对于多连接中的其他连接所对应的接入点的***信息发生变化的情况，可以存在两种实施方式，下面将参照图3至图6进行详细描述。FIG. 2 describes the operation when the system information of the access point corresponding to the first connection in the multi-connection changes, and for the case where the system information of the access point corresponding to the other connections in the multi-connection changes, you can There are two implementations, which will be described in detail below with reference to FIGS. 3 to 6 .
图3是示出根据实施例的通信方法的详细流程图，图4是示出根据图3所示的实施例的交互通信的示意图。FIG. 3 is a detailed flowchart illustrating a communication method according to an embodiment, and FIG. 4 is a schematic diagram illustrating interactive communication according to the embodiment illustrated in FIG. 3 .
在步骤310中，可以在第一连接和不同于该第一连接的另一连接下分别接收第四消息帧，其中，第四消息帧可以包括指示相应连接的接入点的***信息发生变化的信息标识。作为示例，第四消息帧可以是对应连接下的AP广播的信标帧，信息标识可以是信标帧中携带的改变序列(change sequence)域。参照图4，作为示例，第一连接可以用于non-AP STA MLD的站点STA1与AP MLD的接入点AP1之间的通信，例如，第一连接可以是图1所示的第一连接Link1；该另一连接可以用于non-AP STA MLD的站点STA2与AP MLD的接入点AP2之间的通信，例如，该另一连接可以是图1所示的第二连接Link2。图3的步骤310可以对应于图4的操作S410_1和S410_2，即，在第一连接Link1下，STA1可以接收第一连接Link1所对应的接入点AP1发送的第四消息帧(例如，信标帧)；在另一连接Link2下，STA2可以接收另一连接Link2所对应的接入点AP2发送的第四消息帧(例如，信标帧)，并且操作S410_1和S410_2可以并行地执行。此外，STA1所接收到的第四消息帧(例如，信标帧)可以携带指示第一连接Link1的接入点AP1的***信息发生变化的信息标识，例如，与AP1有关的change sequence域；STA2所接收到的第四消息帧(例如，信标帧)可以携带指示另一连接Link2的接入点AP2的***信息发生变化的信息标识，例如，与AP2有关的change sequence域。作为示例，所携带的信息标识(change sequence域)可以包括在第四消息帧(信标帧)的精简邻居报告信息元素(RNRE，Reduced Neighbor Report element)中。In step 310, a fourth message frame may be received under the first connection and another connection different from the first connection, respectively, wherein the fourth message frame may include a message indicating that the system information of the access point of the corresponding connection has changed Information ID. As an example, the fourth message frame may be a beacon frame broadcast by an AP under the corresponding connection, and the information identifier may be a change sequence (change sequence) field carried in the beacon frame. 4 , as an example, the first connection may be used for communication between the station STA1 of the non-AP STA MLD and the access point AP1 of the AP MLD, for example, the first connection may be the first connection Link1 shown in FIG. 1 ; The other connection can be used for communication between the station STA2 of the non-AP STA MLD and the access point AP2 of the AP MLD, for example, the other connection can be the second connection Link2 shown in FIG. 1 . Step 310 of FIG. 3 may correspond to operations S410_1 and S410_2 of FIG. 4 , that is, under the first connection Link1, STA1 may receive a fourth message frame (eg, a beacon) sent by the access point AP1 corresponding to the first connection Link1 frame); under another connection Link2, STA2 may receive a fourth message frame (eg, a beacon frame) sent by the access point AP2 corresponding to the other connection Link2, and operations S410_1 and S410_2 may be performed in parallel. In addition, the fourth message frame (for example, a beacon frame) received by STA1 may carry an information identifier indicating that the system information of the access point AP1 connected to Link1 first changes, for example, the change sequence field related to AP1; STA2 The received fourth message frame (for example, a beacon frame) may carry an information identifier indicating that the system information of another access point AP2 connected to Link2 has changed, for example, a change sequence field related to AP2. As an example, the carried information identifier (change sequence field) may be included in the reduced neighbor report information element (RNRE, Reduced Neighbor Report element) of the fourth message frame (beacon frame).
将理解，图3的步骤S310和图4的操作S410_1和S410_2仅是示例性的，根据实施例的通信方法还可以包括：在non-AP STA MLD与AP MLD之间的另外的其他连接下执行相似的操作，为了简明，在此省略重复的描述。It will be understood that step S310 of FIG. 3 and operations S410_1 and S410_2 of FIG. 4 are only exemplary, and the communication method according to the embodiment may further include: performing under another other connection between the non-AP STA MLD and the AP MLD Similar operations are omitted here for brevity.
当相应的站点(例如，图4的STA1和STA2)接收到相应的第四消息帧(beacon)时，可以根据携带在第四消息帧中的信息标识(change  sequence域)确定出相应的接入点的***信息是否发生变化。例如，当相应的站点确定出此次所接收到的信息标识(change sequence域)的值不同于先前接收到的信息标识(change sequence域)的值，则可以确定出相应的接入点发生了变化。如果相应的站点例如在经过特定时间段之后未接收到相应的接入点发送的变化的***信息，则可以进行步骤320至步骤340。When the corresponding stations (for example, STA1 and STA2 in FIG. 4 ) receive the corresponding fourth message frame (beacon), the corresponding access can be determined according to the information identifier (change sequence field) carried in the fourth message frame Whether the system information of the point has changed. For example, when the corresponding station determines that the value of the information identifier (change sequence field) received this time is different from the value of the previously received information identifier (change sequence field), it can be determined that the corresponding access point has occurred. Variety. If the corresponding station does not receive the changed system information sent by the corresponding access point after a certain period of time, for example, steps 320 to 340 may be performed.
在步骤320中，可以在第一连接下发送第一消息帧(例如，探测请求帧或ML探测请求帧)。根据实施例，第一消息帧(探测请求帧或ML探测请求帧)可以携带与第一连接Link1所对应的接入点AP1的***信息变化有关的第一改变序列标识(change sequence域)。也就是说，第一连接下发送的第一消息帧可以包括与本连接(第一连接Link1)所对应的接入点的***信息变化有关的改变序列标识(例如，change sequence域)。根据实施例，该第一改变序列标识可以用于指示第一连接所对应的接入点发送变化的***信息。步骤320可以对应于图4的操作S420_1。根据实施例，，在操作S420_1发送的第一消息帧携带的change sequence域的值可以不同于在操作S410_1接收的第四消息帧携带的change sequence域。从而，接入点AP1在接收到第一消息帧时，可以根据第一改变序列标识(change sequence域)确定向站点STA1发送变化的***信息(操作S430_1)。In step 320, a first message frame (eg, a probe request frame or an ML probe request frame) may be sent under the first connection. According to an embodiment, the first message frame (probe request frame or ML probe request frame) may carry a first change sequence identifier (change sequence field) related to the system information change of the access point AP1 corresponding to the first connection Link1. That is, the first message frame sent under the first connection may include a change sequence identifier (for example, a change sequence field) related to the change of the system information of the access point corresponding to the current connection (the first connection Link1). According to an embodiment, the first change sequence identifier may be used to instruct the access point corresponding to the first connection to send changed system information. Step 320 may correspond to operation S420_1 of FIG. 4 . According to an embodiment, the value of the change sequence field carried in the first message frame sent in operation S420_1 may be different from the change sequence field carried in the fourth message frame received in operation S410_1. Therefore, when the access point AP1 receives the first message frame, it may determine to send the changed system information to the station STA1 according to the first change sequence identifier (change sequence field) (operation S430_1).
此外，步骤320和操作S420_1可以对应于图2的步骤220，为了避免冗余，在此省略重复的描述。In addition, step 320 and operation S420_1 may correspond to step 220 of FIG. 2 , and in order to avoid redundancy, repeated descriptions are omitted here.
在步骤330中，可以在另一连接下发送第二消息帧。该第二消息帧可以包括与该另一连接所对应的接入点的***信息变化有关的另一改变序列标识。步骤330可以对应于图4的操作S420_2，作为示例，第二消息帧可以是探测请求帧或ML探测请求帧，并且该另一改变序列标识可以是包括在探测请求帧或ML探测请求帧的ML信息元素的change sequence域。也就是说，另一连接下发送的第二消息帧可以包括与本连接(另一连接Link2)所对应的接入点的***信息变化有关的改变序列标识(例如，change sequence域)。根据实施例，该另一改变序列标识可以用于指示另一连接所对应的接入点发送变化的***信息。根据实施例，在操作S420_2发送的第二消息帧携带的change sequence域的值可以不同于在操作S410_2接收的第四消息帧携带的 change sequence域。即，接入点AP2在接收到第二消息帧时，可以根据该另一改变序列标识(change sequence域)确定需要发送变化的***信息(操作S430_2)。In step 330, a second message frame may be sent under another connection. The second message frame may include another change sequence identifier related to the system information change of the access point corresponding to the other connection. Step 330 may correspond to operation S420_2 of FIG. 4 , as an example, the second message frame may be a probe request frame or an ML probe request frame, and the other change sequence identifier may be an ML included in the probe request frame or the ML probe request frame. The change sequence field of the information element. That is, the second message frame sent under another connection may include a change sequence identifier (for example, a change sequence field) related to the change of the system information of the access point corresponding to the current connection (the other connection Link2). According to an embodiment, the other change sequence identifier may be used to instruct the access point corresponding to another connection to send the changed system information. According to an embodiment, the value of the change sequence field carried in the second message frame sent in operation S420_2 may be different from the change sequence field carried in the fourth message frame received in operation S410_2. That is, when the access point AP2 receives the second message frame, it may determine, according to the other change sequence identifier (change sequence field), that the changed system information needs to be sent (operation S430_2).
此外，在操作S420_1发送的第一消息帧携带的change sequence域的值以及在操作S420_2发送的第二消息帧携带的change sequence域的值可以相同也可以不同，对此，本公开不做具体限定。In addition, the value of the change sequence field carried in the first message frame sent in operation S420_1 and the value of the change sequence field carried in the second message frame sent in operation S420_2 may be the same or different, which are not specifically limited in the present disclosure .
在步骤S340中，相应的站点可以在第一连接和另一连接下分别接收第三消息帧，其中，第三消息帧包括指示相应连接的接入点的变化的***信息或基本服务集(BSS)的关键更新信息。作为示例，第三消息帧可以是压缩探测响应帧或ML探测响应帧，考虑到接入点已经确定需要向站点发送变化的***信息，因此为了节省资源，接入点可以发送主要包括变化的***信息或基本服务集(BSS)的关键更新信息的压缩探测响应帧或ML探测响应帧，而不是还包含大量其他信息的一般的探测响应帧或ML探测响应帧。可以理解，步骤S340可以对应于图4的操作S430_1和S430_2。具体地说，在第一连接Link1下，站点STA1可以从相应的接入点AP1接收包含AP1的变化的***信息的第三消息帧(压缩探测响应帧或ML探测响应帧)；在另一连接Link2下，站点STA2可以从相应的接入点AP2接收包含AP2的变化的***信息的第三消息帧(压缩探测响应帧或ML探测响应帧)。将理解，步骤320和步骤330可以并行地执行，操作S420_1和S420_2可以并行地执行，并且操作S430_1和S430_2可以并行地执行。In step S340, the corresponding station may receive a third message frame under the first connection and another connection, respectively, wherein the third message frame includes system information or basic service set (BSS) indicating the change of the access point of the corresponding connection. ) key updates. As an example, the third message frame may be a compressed probe response frame or an ML probe response frame. Considering that the access point has determined that the changed system information needs to be sent to the station, in order to save resources, the access point may send the system information mainly including the change A compressed probe response frame or ML probe response frame of information or key update information of the Basic Service Set (BSS), rather than a general probe response frame or ML probe response frame that also contains a lot of other information. It can be understood that step S340 may correspond to operations S430_1 and S430_2 of FIG. 4 . Specifically, under the first connection Link1, the station STA1 may receive a third message frame (compressed probe response frame or ML probe response frame) containing the changed system information of AP1 from the corresponding access point AP1; in another connection Under Link2, the station STA2 may receive a third message frame (compressed probe response frame or ML probe response frame) containing AP2's changed system information from the corresponding access point AP2. It will be appreciated that step 320 and step 330 may be performed in parallel, operations S420_1 and S420_2 may be performed in parallel, and operations S430_1 and S430_2 may be performed in parallel.
当non-AP STA MLD的相应站点确定相应连接的接入点的***信息发生变化时，可以执行图3和图4所描述的通信方法，即，non-AP STA MLD可以在各个连接下分别发送探测请求帧或ML探测请求帧(携带改变序列信息元素)，并且可以在各个连接下分别接收AP MLD回复的压缩探测响应帧或ML探测响应帧。When the corresponding station of the non-AP STA MLD determines that the system information of the corresponding connected access point changes, the communication method described in FIG. 3 and FIG. 4 can be performed, that is, the non-AP STA MLD can be sent separately under each connection. A probe request frame or an ML probe request frame (carrying a change sequence information element), and a compressed probe response frame or an ML probe response frame replied by the AP MLD can be received under each connection, respectively.
图5是示出根据实施例的通信方法的另一详细流程图，图6是示出根据图5所示的实施例的交互通信的示意图。FIG. 5 is another detailed flowchart illustrating the communication method according to the embodiment, and FIG. 6 is a schematic diagram illustrating the interactive communication according to the embodiment shown in FIG. 5 .
在步骤510中，可以在第一连接下接收第六消息帧。根据实施例，第六消息帧可以包括第二信息，该第二信息可以包括指示与第一连接相对应的接 入点的***信息发生变化的信息标识。此外，该第二信息还可以包括：指示与不同于第一连接的其他连接相对应的接入点的***信息发生变化的信息标识。步骤510可以对应于图6的操作S610，作为示例，第六消息帧可以是与第一连接相对应的接入点广播的信标帧，第二信息可以是信标帧中的精简邻居报告信息元素，信息标识可以是精简邻居报告信息元素中的change sequence域。不同于上述步骤310和操作S410_1和S410_2中的各自的第四消息帧，在第一连接下接收到的第六消息帧不仅可以包括与本连接(例如，第一连接)相对应的接入点的***信息发生变化的信息标识，还可以包括与其他连接相对应的接入点的***信息发生变化的信息标识。在此情况下，第六消息帧的第二信息还可以包括连接标识，以用于指示相应的信息标识是对应于哪个连接。In step 510, a sixth message frame may be received under the first connection. According to an embodiment, the sixth message frame may include second information, and the second information may include an information identifier indicating that the system information of the access point corresponding to the first connection has changed. In addition, the second information may further include: an information identifier indicating that the system information of the access point corresponding to other connections different from the first connection has changed. Step 510 may correspond to operation S610 of FIG. 6 , as an example, the sixth message frame may be a beacon frame broadcast by an access point corresponding to the first connection, and the second information may be abbreviated neighbor report information in the beacon frame element, the information identifier can be the change sequence field in the reduced neighbor report information element. Different from the respective fourth message frames in the above step 310 and operations S410_1 and S410_2, the sixth message frame received under the first connection may not only include access points corresponding to the present connection (eg, the first connection) The information identifier that the system information of the access point changes, and may also include the information identifier that the system information of the access point corresponding to other connections changes. In this case, the second information of the sixth message frame may further include a connection identifier, so as to indicate which connection the corresponding information identifier corresponds to.
在操作520中，可以在第一连接下发送第一消息帧。根据本公开的实施例，第一消息帧可以包括第一信息，该第一信息可以包括与第一连接所对应的接入点的***信息变化有关的第一改变序列标识。此外，该第一信息还可以包括：与不同于第一连接的其他连接所对应的接入点的***信息变化有关的其他改变序列标识。作为示例，第一消息帧可以是探测请求帧或ML探测请求帧，第一信息可以是探测请求帧或ML探测请求帧中的ML信息元素，并且第一改变序列标识以及其他改变序列标识可以是探测请求帧或ML探测请求帧的ML信息元素中的change sequence域。作为示例，第一连接可以是接收到第六消息帧(beacon帧)的连接，例如，可以是图1所示的Link1。然而，本公开不限于此，第一连接可以不同于接收到第六消息帧(beacon帧)的连接，并且可以是non-AP STA MLD与AP MLD之间已经建立的多连接中的任意连接。此外，不同于第一连接的其他连接可以是已经建立的多连接中的除了第一连接Link1之外的接入点的***信息发生变化的连接，例如，图1所示的Link2和/或Link3等。In operation 520, a first message frame may be sent under the first connection. According to an embodiment of the present disclosure, the first message frame may include first information, and the first information may include a first change sequence identifier related to a change in system information of an access point corresponding to the first connection. In addition, the first information may further include: other change sequence identifiers related to system information changes of access points corresponding to other connections different from the first connection. As an example, the first message frame may be a probe request frame or an ML probe request frame, the first information may be a probe request frame or an ML information element in an ML probe request frame, and the first change sequence identifier and other change sequence identifiers may be The change sequence field in the ML information element of a probe request frame or ML probe request frame. As an example, the first connection may be the connection that receives the sixth message frame (beacon frame), for example, may be Link1 shown in FIG. 1 . However, the present disclosure is not limited thereto, and the first connection may be different from the connection that received the sixth message frame (beacon frame), and may be any connection among multiple connections that have been established between the non-AP STA MLD and the AP MLD. In addition, other connections different from the first connection may be connections in which the system information of access points other than the first connection Link1 in the established multi-connection has changed, for example, Link2 and/or Link3 shown in FIG. 1 . Wait.
不同于步骤320和操作S420_1和S420_2，在图5的步骤520和图6的操作S620中，在第一连接下发送的第一消息帧不仅可以包括与本连接(第一连接)所对应的接入点的***信息变化有关的第一改变序列标识，还可以包括与不同于本连接(第一连接)的其他连接所对应的接入点的***信息变 化有关的其他改变序列标识。在此情况下，第一消息帧的第一信息还可以包括：与第一连接和/或其他连接分别相对应的连接标识。每个连接标识可以指示相应的改变序列标识所对应的连接。作为描述性的实施例，当第一连接对应于图1所示的Link1并且其他连接对应于图1所述的Link3时，步骤320和操作S620发送的第一消息帧可以包括：Link1对应的改变序列标识和Link1对应的连接标识，以及Link3对应的改变序列标识和Link3对应的连接标识。Different from step 320 and operations S420_1 and S420_2, in step 520 of FIG. 5 and operation S620 of FIG. 6 , the first message frame sent under the first connection may not only include the connection corresponding to the current connection (the first connection). The first change sequence identifier related to the system information change of the ingress point may also include other change sequence identifiers related to the system information change of the access point corresponding to other connections different from the current connection (the first connection). In this case, the first information of the first message frame may further include: connection identifiers corresponding to the first connection and/or other connections respectively. Each connection identifier may indicate the connection to which the corresponding change sequence identifier corresponds. As an illustrative example, when the first connection corresponds to Link1 shown in FIG. 1 and other connections correspond to Link3 shown in FIG. 1 , the first message frame sent in step 320 and operation S620 may include: changes corresponding to Link1 The sequence identifier and the connection identifier corresponding to Link1, and the change sequence identifier corresponding to Link3 and the connection identifier corresponding to Link3.
当接入点接收到在步骤520和操作S620发送的第一消息帧时，可以根据改变序列标识和相应的连接标识确定出需要发送哪些接入点的变化的***信息或基本服务集(BSS)的关键更新信息。对应地，在步骤530中，站点可以在第一连接下接收第五消息帧，其中，该第五消息帧包括：指示第一连接和其他连接所对应的接入点的变化的***信息、以及第一连接和/或其他连接的连接标识。此外，根据本公开的实施例，如果在某一个连接下涉及多个***信息的变化，则该连接的连接标识可以仅出现一次。也就是说，一个连接标识可以对应于一个连接下的多个***信息的变化。When the access point receives the first message frame sent in step 520 and operation S620, it can determine which access point's changed system information or basic service set (BSS) needs to be sent according to the change sequence identifier and the corresponding connection identifier. key updates. Correspondingly, in step 530, the station may receive a fifth message frame under the first connection, where the fifth message frame includes: system information indicating changes of access points corresponding to the first connection and other connections, and Connection identifiers of the first connection and/or other connections. In addition, according to an embodiment of the present disclosure, if a certain connection involves multiple system information changes, the connection identifier of the connection may only appear once. That is to say, one connection identifier may correspond to changes of multiple system information under one connection.
步骤530可以对应于图6的操作S630，并且作为示例，第五消息帧可以是压缩探测响应帧或ML探测响应帧，其可以携带第一连接和其他连接所对应的接入点的变化的***信息、和/或相应的连接标识。Step 530 may correspond to operation S630 of FIG. 6 , and as an example, the fifth message frame may be a compressed probe response frame or an ML probe response frame, which may carry a system of changes in access points corresponding to the first connection and other connections information, and/or the corresponding connection identifier.
在图5和图6所描述的实施例中，non-AP STA MLD可以在接收到change sequence域的连接下或任意已经建立多连接通信的连接下发送探测请求帧或ML探测请求帧(ML probe request)，其中，每个连接下的change sequence域的值可能不一样(也可能一样)，因此需要携带相应的连接标识(link ID)；然后non-AP STA MLD可以接收AP MLD发送的压缩探测响应帧或ML探测响应帧(ML probe response)，以获取变化的***信息以及对应的连接标识。In the embodiments described in Figures 5 and 6, the non-AP STA MLD can send a probe request frame or an ML probe request frame (ML probe) under the connection that receives the change sequence field or under any connection that has established multi-connection communication. request), where the value of the change sequence field under each connection may be different (or the same), so it needs to carry the corresponding connection identifier (link ID); then the non-AP STA MLD can receive the compression probe sent by the AP MLD Response frame or ML probe response frame (ML probe response) to obtain the changed system information and the corresponding connection identifier.
可以理解的是，图5的步骤530和图6的步骤S630仅是示例性的，本公开不限于此，例如，还可以如图4的操作S430_1和S430_2所示，在相应的连接下分别接收相应接入点的变化的***信息，在此情况下，可以不包括连接标识。It can be understood that step 530 of FIG. 5 and step S630 of FIG. 6 are only exemplary, and the present disclosure is not limited thereto. For example, as shown in operations S430_1 and S430_2 of FIG. The changed system information of the corresponding access point, in this case, may not include the connection identifier.
图7是示出根据实施例的另一通信方法的流程图。图7所示的另一通信方法可以应用于支持多连接通信的接入点。FIG. 7 is a flowchart illustrating another communication method according to an embodiment. Another communication method shown in FIG. 7 can be applied to an access point supporting multi-connection communication.
在步骤710中，可以在第一连接下接收第一消息帧。根据实施例，第一消息帧可以包括第一信息，该第一信息可以包括与第一连接所对应的接入点的***信息变化有关的第一改变序列标识。作为示例，第一消息帧可以是探测请求帧或ML探测请求帧，第一信息可以是探测请求帧或ML探测请求帧中的多连接(ML)信息元素，并且第一改变序列标识可以是ML信息元素中的改变序列(change sequence)域。这里的第一消息帧、第一信息和第一改变序列标识可以类似于参照图2的步骤210和220、图3的步骤320以及图4的操作S420_1描述的实施例，为了简明，在此省略重复的描述。In step 710, a first message frame may be received under the first connection. According to an embodiment, the first message frame may include first information, and the first information may include a first change sequence identifier related to a system information change of the access point corresponding to the first connection. As an example, the first message frame may be a probe request frame or an ML probe request frame, the first information may be a multi-connection (ML) information element in a probe request frame or an ML probe request frame, and the first change sequence identifier may be an ML The change sequence field in the information element. The first message frame, the first information and the first change sequence identifier here may be similar to the embodiments described with reference to steps 210 and 220 of FIG. 2 , step 320 of FIG. 3 and operation S420_1 of FIG. 4 , and are omitted here for brevity Duplicate description.
在步骤720中，可以基于第一消息帧，执行相应的通信操作。例如，接入点可以根据第一消息帧中携带的第一改变序列标识，确定是否需要发送接入点的变化的***信息或基本服务集(BSS)的关键更新信息。又例如，接入点可以根据第一消息帧携带的其他确定，确定以何种方式发送变化的***信息或基本服务集(BSS)的关键更新信息。In step 720, a corresponding communication operation may be performed based on the first message frame. For example, the access point may determine, according to the first change sequence identifier carried in the first message frame, whether to send the changed system information of the access point or the key update information of the basic service set (BSS). For another example, the access point may determine, according to other determinations carried in the first message frame, how to send the changed system information or the key update information of the basic service set (BSS).
图7的通信方法所示的步骤仅是示例性的，本公开的实施例不限于此。一方面，图7的通信方法还可以包括图4中由AP MLD的接入点执行的操作。The steps shown in the communication method of FIG. 7 are only exemplary, and embodiments of the present disclosure are not limited thereto. In one aspect, the communication method of FIG. 7 may further include the operations performed by the access point of the AP MLD in FIG. 4 .
具体地说，图7的通信方法还可以包括：在不同于第一连接的另一连接下，接收第二消息帧(对应于图4的操作S420_2，为了避免冗余，在此省略重复的描述)，其中，第二消息帧可以包括与该另一连接所对应的接入点的***信息变化有关的另一改变序列标识。此外，图7的通信方法还可以包括：在第一连接和该另一连接下分别发送第三消息帧，其中，第三消息帧可以包括指示相应连接的接入点的变化的***信息(对应于图4的操作S430_1和S430_2，为了避免冗余，在此省略重复的描述)。此外，图7的通信方法还可以包括：在第一连接和该另一连接下分别发送第四消息帧，其中，第四消息帧可以包括指示相应连接的接入点的***信息发生变化的信息标识(对应于图4的操作S410_1和S410_2，为了避免冗余，在此省略重复的描述)。Specifically, the communication method in FIG. 7 may further include: receiving a second message frame under another connection different from the first connection (corresponding to operation S420_2 in FIG. 4 , in order to avoid redundancy, repeated descriptions are omitted here). ), wherein the second message frame may include another change sequence identifier related to the change of the system information of the access point corresponding to the other connection. In addition, the communication method of FIG. 7 may further include: respectively sending a third message frame under the first connection and the other connection, wherein the third message frame may include system information indicating a change of the access point of the corresponding connection (corresponding to In operations S430_1 and S430_2 of FIG. 4 , in order to avoid redundancy, repeated descriptions are omitted here). In addition, the communication method of FIG. 7 may further include: respectively sending a fourth message frame under the first connection and the other connection, wherein the fourth message frame may include information indicating that the system information of the correspondingly connected access point has changed Identification (corresponding to operations S410_1 and S410_2 of FIG. 4 , and repeated descriptions are omitted here in order to avoid redundancy).
另一方面，图7的通信方法还可以包括图6中由AP MLD的接入点执行 的操作。On the other hand, the communication method of FIG. 7 may further include the operations performed by the access point of the AP MLD in FIG. 6 .
具体地说，在操作S620中，接入点在第一连接下接收的第一消息帧的第一信息还可以包括：与不同于第一连接的其他连接所对应的接入点的***信息变化有关的其他改变序列标识。此外，该第一信息还可以包括：与第一连接和/或其他连接分别相对应的连接标识。此外，图7的通信方法还可以包括：在第一连接下发送第五消息帧，其中，第五消息帧可以包括：指示第一连接和其他连接所对应的接入点的变化的***信息、以及第一连接和/或其他连接的连接标识(对应于图6的操作S630，为了避免冗余，在此省略重复的描述)。此外，图7的通信方法还可以包括：在第一连接下发送第六消息帧，其中，第六消息帧可以包括第二信息，第二信息可以包括：指示与第一连接相对应的接入点的***信息发生变化的信息标识、以及指示与不同于第一连接的其他连接相对应的接入点的***信息发生变化的信息标识(对应于图6的操作S610，为了避免冗余，在此省略重复的描述)。Specifically, in operation S620, the first information of the first message frame received by the access point under the first connection may further include: system information changes of the access point corresponding to other connections different from the first connection Other changes related to sequence identification. In addition, the first information may further include: connection identifiers corresponding to the first connection and/or other connections respectively. In addition, the communication method in FIG. 7 may further include: sending a fifth message frame under the first connection, where the fifth message frame may include: system information indicating changes of access points corresponding to the first connection and other connections, and the connection identifiers of the first connection and/or other connections (corresponding to operation S630 of FIG. 6 , in order to avoid redundancy, repeated descriptions are omitted here). In addition, the communication method of FIG. 7 may further include: sending a sixth message frame under the first connection, wherein the sixth message frame may include second information, and the second information may include: indicating an access corresponding to the first connection The information identifier that the system information of the point has changed, and the information identifier indicating that the system information of the access point corresponding to other connections different from the first connection has changed (corresponding to operation S610 of FIG. 6 , in order to avoid redundancy, in Duplicate descriptions are omitted here).
图8是示出根据实施例的另一通信方法的流程图。图8所示的通信方法可以应用于支持多连接通信的站点。图9是示出与图8所示的通信方法相对应的实施例的交互通信的示意图。图10是示出与图8所示的通信方法相对应的另一实施例的交互通信的示意图。FIG. 8 is a flowchart illustrating another communication method according to an embodiment. The communication method shown in FIG. 8 can be applied to a station supporting multi-connection communication. FIG. 9 is a schematic diagram illustrating interactive communication of an embodiment corresponding to the communication method shown in FIG. 8 . FIG. 10 is a schematic diagram illustrating interactive communication in another embodiment corresponding to the communication method shown in FIG. 8 .
在步骤810中，可以在多连接中的第一连接下接收第七消息帧，其中，第七消息帧可以包括与第一连接对应的接入点的变化的***信息或基本服务集(BSS)的关键更新信息。多连接可以是non-AP STA MLD与AP MLD之间建立的多连接通信。作为示例，第七消息帧可以是携带第一连接所对应的接入点的变化的***信息或基本服务集(BSS)的关键更新信息的信标帧。In step 810, a seventh message frame may be received under the first connection in the multi-connection, wherein the seventh message frame may include changed system information or basic service set (BSS) of the access point corresponding to the first connection key updates. The multi-connection may be a multi-connection communication established between the non-AP STA MLD and the AP MLD. As an example, the seventh message frame may be a beacon frame that carries the changed system information of the access point corresponding to the first connection or the key update information of the basic service set (BSS).
在步骤820中，可以基于第七消息帧，执行相应的通信操作。例如，站点可以基于第一消息帧携带信息，确定变化的***信息，并且基于变化的***信息执行进一步的通信操作(例如，数据交换等)。In step 820, a corresponding communication operation may be performed based on the seventh message frame. For example, the station may determine changed system information based on the information carried in the first message frame, and perform further communication operations (eg, data exchange, etc.) based on the changed system information.
图8所示的通信方法仅是示例性的，本公开不限于此。The communication method shown in FIG. 8 is only exemplary, and the present disclosure is not limited thereto.
在本公开的一个方面，图8所示的通信方法还可以包括图9中由站点 (例如，STA1和STA2)执行的操作。In one aspect of the present disclosure, the communication method shown in FIG. 8 may further include the operations performed by the stations (eg, STA1 and STA2) in FIG. 9 .
例如，图8的通信方法还可以包括：在第一连接和不同于第一连接的另一连接下，分别接收第九消息帧，其中，第九消息帧可以包括指示相应连接的接入点的***信息发生变化的信息标识，即，图9的操作S910_1和操作S910_2。具体地说，在操作S910_1中，可以在第一连接(Link1)下接收关于第一连接所对应的接入点(AP1)的信息标识；在操作S910_2中，可以在另一连接(Link2)下接收关于另一连接所对应的接入点(AP2)的信息标识。根据实施例，第九消息帧可以是相应的接入点发送的信标帧，并且关于AP1的信息标识和关于AP2的信息标识可以分别是相应的信标帧中的change sequence域，其含义类似于图4的操作S410_1和操作S410_2中的实施例，为了避免冗余，在此省略重复的描述。For example, the communication method of FIG. 8 may further include: respectively receiving a ninth message frame under the first connection and another connection different from the first connection, wherein the ninth message frame may include an information indicating the access point of the corresponding connection. The information identification of the changed system information, that is, operation S910_1 and operation S910_2 of FIG. 9 . Specifically, in operation S910_1, the information identifier about the access point (AP1) corresponding to the first connection may be received under the first connection (Link1); in operation S910_2, the information identifier of the access point (AP1) corresponding to the first connection may be received under another connection (Link2) An information identification about an access point (AP2) corresponding to another connection is received. According to the embodiment, the ninth message frame may be a beacon frame sent by a corresponding access point, and the information identifier about AP1 and the information identifier about AP2 may be respectively the change sequence fields in the corresponding beacon frames, and their meanings are similar In the embodiment in operations S410_1 and S410_2 of FIG. 4 , in order to avoid redundancy, repeated descriptions are omitted here.
图9的操作S920_1可以对应于图8的步骤810。此外，图8所示的通信方法还可以包括：在不同于第一连接的另一连接下，接收第八消息帧，其中，第八消息帧可以包括与另一连接对应的接入点的变化的***信息(图9的操作S920_2)。作为示例，第八消息帧可以是信标帧，其携带该另一连接所对应的接入点(AP2)的变化的***信息或基本服务集(BSS)的关键更新信息。Operation S920_1 of FIG. 9 may correspond to step 810 of FIG. 8 . In addition, the communication method shown in FIG. 8 may further include: under another connection different from the first connection, receiving an eighth message frame, wherein the eighth message frame may include a change of an access point corresponding to the other connection system information (operation S920_2 of FIG. 9 ). As an example, the eighth message frame may be a beacon frame, which carries the changed system information of the access point (AP2) corresponding to the other connection or the key update information of the basic service set (BSS).
在图9的实施例中，站点可以在相应的连接下接收相应的信标帧，其可以携带指示相应的接入点发生***信息变化的change sequence域(操作S910_1和S910_2)；之后，与参照图3和图4描述的实施例不同，在图9的通信方法中，站点不通过探测请求帧(或ML探测请求帧)和压缩探测响应帧(或ML探测响应帧)来获取变化的***信息，而是可以直接从相应的接入点接收另一信标帧，其携带有变化的***信息或基本服务集(BSS)的关键更新信息(操作S920_1和S920_2)。In the embodiment of FIG. 9 , the station may receive the corresponding beacon frame under the corresponding connection, which may carry the change sequence field indicating that the corresponding access point has undergone a system information change (operations S910_1 and S910_2); Different from the embodiment described in FIG. 3 and FIG. 4 , in the communication method in FIG. 9 , the station does not obtain the changed system information through the probe request frame (or ML probe request frame) and the compressed probe response frame (or ML probe response frame). , but another beacon frame may be directly received from the corresponding access point, which carries the changed system information or the key update information of the Basic Service Set (BSS) (operations S920_1 and S920_2 ).
在本公开的另一方面，图8所示的通信方法还可以包括图10中由站点(例如，STA1)执行的操作。In another aspect of the present disclosure, the communication method shown in FIG. 8 may further include the operations performed by the station (eg, STA1 ) in FIG. 10 .
参照图10，在操作S1010中，可以在第一连接下，接收第十消息帧。其中，第十消息帧可以包括指示与第一连接和不同于第一连接的其他连接相对应的接入点的***信息发生变化的信息标识。根据实施例，第十消息 帧可以是从相应的接入点接收的信标帧，并且信息标识可以是信标帧的精简邻居报告信息元素中的change sequence域。与图9的操作S910_1和S910_2不同，在操作S1010中，在第一连接下接收的第十消息帧(信标帧)不仅可以包括与本连接(例如，第一连接)相对应的接入点的***信息发生变化的信息标识，还可以包括其他连接所对应的接入点的***信息发生变化的信息标识。在此情况下，第十消息帧还可以包括连接标识，以用于指示相应的信息标识是对应于哪个连接。图10的操作S1010可以类似于图5的步骤510和图6的操作S610的描述，为了避免冗余，在此省略重复的描述。Referring to FIG. 10, in operation S1010, a tenth message frame may be received under the first connection. The tenth message frame may include an information identifier indicating that the system information of the access points corresponding to the first connection and other connections different from the first connection have changed. According to an embodiment, the tenth message frame may be a beacon frame received from the corresponding access point, and the information identification may be a change sequence field in a reduced neighbor report information element of the beacon frame. Unlike operations S910_1 and S910_2 of FIG. 9 , in operation S1010, the tenth message frame (beacon frame) received under the first connection may include not only the access point corresponding to the present connection (eg, the first connection) The information identifier of the change of the system information of the other connection may also include the information identifier of the change of the system information of the access point corresponding to the other connection. In this case, the tenth message frame may further include a connection identifier, so as to indicate which connection the corresponding information identifier corresponds to. Operation S1010 of FIG. 10 may be similar to the descriptions of step 510 of FIG. 5 and operation S610 of FIG. 6 , and repeated descriptions are omitted here in order to avoid redundancy.
在操作S1020中，可以在第一连接下接收第七消息帧，其中，第七消息帧可以包括与第一连接对应的接入点的变化的***信息。此外，该第七消息帧还可以包括：与不同于第一连接的其他连接对应的接入点的变化的***信息、以及第一连接和/或其他连接的连接标识。作为示例，第七消息帧可以是信标帧。In operation S1020, a seventh message frame may be received under the first connection, wherein the seventh message frame may include changed system information of an access point corresponding to the first connection. In addition, the seventh message frame may further include: changed system information of access points corresponding to other connections different from the first connection, and connection identifiers of the first connection and/or other connections. As an example, the seventh message frame may be a beacon frame.
在图10的实施例中，站点可以在一个连接下接收信标帧，该信标帧可以携带指示本连接以及其他连接的接入点发生***信息变化的change sequence域以及连接标识(操作S1010)；之后，与参照图5和图6描述的实施例不同，在图10的通信方法中，站点不通过探测请求帧(或ML探测请求帧)和压缩探测响应帧(或ML探测响应帧)来获取变化的***信息，而是可以通过接收另一信标帧，该另一信标帧可以携带本连接的接入点变化的***信息及本连接的连接标识、以及其他连接的接入点的变化的***信息的信标帧及其他连接的连接标识(操作S1020)。In the embodiment of FIG. 10 , a station may receive a beacon frame under one connection, and the beacon frame may carry a change sequence field and a connection identifier indicating that the system information of the connection and other connected access points have changed (operation S1010 ) Afterwards, unlike the embodiments described with reference to Fig. 5 and Fig. 6, in the communication method of Fig. 10, the station does not pass a probe request frame (or ML probe request frame) and a compressed probe response frame (or ML probe response frame) to The changed system information can be obtained by receiving another beacon frame, which can carry the changed system information of the access point of this connection, the connection identifier of this connection, and the information of other connected access points. The beacon frame of the changed system information and the connection identification of other connections (operation S1020).
图11是示出根据实施例的另一通信方法的流程图。图11所示的通信方法可以应用于支持多连接通信的接入点。FIG. 11 is a flowchart illustrating another communication method according to an embodiment. The communication method shown in FIG. 11 can be applied to an access point supporting multi-connection communication.
在步骤1110中，可以确定第七消息帧。在步骤1120中，可以在多连接中的第一连接下发送第七消息帧，其中，第七消息帧可以包括与第一连接对应的接入点的变化的***信息。根据本公开的实施例，可以在与步骤1120中的第一连接相同的连接下确定第七消息帧，然而，本公开不限于此，也可以在不同于第一连接的连接下确定第七消息帧。在本公开的实施 例中，确定第七消息帧的方式可以有很多种，例如：AP MLD可以根据以下的至少一种情况来生成第一消息帧：网络情况、负载情况、发送/接收设备的硬件能力、业务类型、相关协议规定；对此本公开实施例不作具体限制。在本公开的实施例中，AP MLD还可以从外部设备获取该第一消息帧，对此本公开实施例不作具体限制。In step 1110, a seventh message frame may be determined. In step 1120, a seventh message frame may be sent under the first connection in the multiple connections, where the seventh message frame may include changed system information of the access point corresponding to the first connection. According to an embodiment of the present disclosure, the seventh message frame may be determined under the same connection as the first connection in step 1120, however, the present disclosure is not limited thereto, and the seventh message frame may also be determined under a connection different from the first connection frame. In the embodiment of the present disclosure, there may be many ways to determine the seventh message frame. For example, the AP MLD may generate the first message frame according to at least one of the following conditions: network conditions, load conditions, the sending/receiving device's Hardware capabilities, service types, and related protocols are stipulated; there is no specific limitation on this embodiment of the present disclosure. In this embodiment of the present disclosure, the AP MLD may also acquire the first message frame from an external device, which is not specifically limited in this embodiment of the present disclosure.
图11所示的通信方法仅是示例性的，本公开不限于此。The communication method shown in FIG. 11 is only exemplary, and the present disclosure is not limited thereto.
一个方面，图11所示的通信方法还可以包括图9中由接入点(例如，AP1和AP2)执行的操作。In one aspect, the communication method shown in FIG. 11 may further include the operations performed by the access points (eg, AP1 and AP2 ) in FIG. 9 .
例如，图11的通信方法还可以包括：在第一连接和另一连接下，分别发送第九消息帧，其中，第九消息帧可以包括指示与相应连接的接入点的***信息发生变化的信息标识(图9的操作S910_1和S910_2)。For example, the communication method of FIG. 11 may further include: respectively sending a ninth message frame under the first connection and another connection, wherein the ninth message frame may include a message indicating that the system information of the access point connected to the corresponding connection has changed. Information identification (operations S910_1 and S910_2 of FIG. 9 ).
例如，图11的通信方法还可以包括：在不同于第一连接的另一连接下，发送第八消息帧，其中，第八消息帧可以包括与另一连接对应的接入点的变化的***信息(图9的操作S920_2)。For example, the communication method of FIG. 11 may further include: under another connection different from the first connection, sending an eighth message frame, wherein the eighth message frame may include the system of the change of the access point corresponding to the other connection information (operation S920_2 of FIG. 9 ).
另一个方面，图11所示的通信方法还可以包括图10中由接入点(例如，AP1)执行的操作。On the other hand, the communication method shown in FIG. 11 may further include the operations performed by the access point (eg, AP1 ) in FIG. 10 .
例如，图11所示的通信方法还可以包括：在第一连接下，发送第十消息帧，其中，第十消息帧可以包括指示与第一连接和不同于第一连接的其他连接对应的接入点的***信息发生变化的信息标识(图10的S1010)。For example, the communication method shown in FIG. 11 may further include: under the first connection, sending a tenth message frame, wherein the tenth message frame may include a connection indicating a connection corresponding to the first connection and other connections different from the first connection. An information flag indicating that the system information of the in-point has changed (S1010 in FIG. 10 ).
例如，图11所示的通信方法还可以包括：在第一连接下，发送第七消息帧，其中，第七消息帧可以包括与第一连接对应的接入点的变化的***信息，此外，第七消息帧还可以包括：与不同于第一连接的其他连接对应的接入点的变化的***信息、以及第一连接和/或其他连接的连接标识(图10的S1020)。For example, the communication method shown in FIG. 11 may further include: under the first connection, sending a seventh message frame, where the seventh message frame may include changed system information of the access point corresponding to the first connection, and in addition, The seventh message frame may further include: changed system information of access points corresponding to other connections different from the first connection, and connection identifiers of the first connection and/or other connections (S1020 of FIG. 10 ).
图12是示出根据实施例的通信装置1200的框图。图12的通信装置1200可以包括处理模块1210和收发模块1220。FIG. 12 is a block diagram illustrating a communication device 1200 according to an embodiment. The communication apparatus 1200 of FIG. 12 may include a processing module 1210 and a transceiver module 1220 .
根据实施例，图12所示的通信装置1200可以应用于支持多连接通信的站点。According to an embodiment, the communication apparatus 1200 shown in FIG. 12 may be applied to a station supporting multi-connection communication.
一方面，处理模块1210可以被配置为：确定第一消息帧；收发模块 1220可以被配置为：在多连接中的第一连接下发送第一消息帧，其中，第一消息帧可以包括第一信息，该第一信息可以包括与第一连接所对应的接入点的***信息变化有关的第一改变序列标识。此外，图12所示的通信装置1200可以执行图2、图3和图5的通信方法以及图4和图6中由non-AP STA MLD执行的操作，为了避免冗余，在此省略重复的描述。In one aspect, the processing module 1210 may be configured to: determine the first message frame; the transceiver module 1220 may be configured to: send the first message frame under the first connection in the multiple connections, wherein the first message frame may include the first message frame information, the first information may include a first change sequence identifier related to the change of the system information of the access point corresponding to the first connection. In addition, the communication apparatus 1200 shown in FIG. 12 can perform the communication methods of FIGS. 2 , 3 and 5 and the operations performed by the non-AP STA MLD in FIGS. 4 and 6 . To avoid redundancy, repeated repetitions are omitted here. describe.
另一方面，收发模块1220可以被配置为：在多连接中的第一连接下接收第七消息帧，其中，第七消息帧可以包括与第一连接对应的接入点的变化的***信息；处理模块1210可以被配置为：基于第七消息帧，执行相应的通信操作。此外，图12所示的通信装置1200可以执行图8的通信方法以及图9和图10中由non-AP STA MLD执行的操作，为了避免冗余，在此省略重复的描述。On the other hand, the transceiver module 1220 may be configured to: receive a seventh message frame under the first connection in the multiple connections, wherein the seventh message frame may include the changed system information of the access point corresponding to the first connection; The processing module 1210 may be configured to perform a corresponding communication operation based on the seventh message frame. In addition, the communication apparatus 1200 shown in FIG. 12 may perform the communication method of FIG. 8 and the operations performed by the non-AP STA MLD in FIGS. 9 and 10 , and repeated descriptions are omitted here in order to avoid redundancy.
根据实施例，图12所示的通信装置1200可以应用于支持多连接通信的接入点。According to an embodiment, the communication apparatus 1200 shown in FIG. 12 may be applied to an access point supporting multi-connection communication.
一方面，收发模块1220可以被配置为：在多连接中的第一连接下接收第一消息帧，其中，第一消息帧可以包括第一信息，该第一信息可以包括与第一连接所对应的接入点的***信息变化有关的第一改变序列标识；处理模块1210可以被配置为：基于第一消息帧，执行相应的通信操作。此外，图12所示的通信装置1200可以执行图7的通信方法以及图4和图6中由AP MLD执行的操作，为了避免冗余，在此省略重复的描述。On the one hand, the transceiver module 1220 may be configured to receive a first message frame under a first connection in the multiple connections, where the first message frame may include first information, and the first information may include a first message corresponding to the first connection The first change sequence identifier related to the system information change of the access point; the processing module 1210 may be configured to: perform a corresponding communication operation based on the first message frame. In addition, the communication apparatus 1200 shown in FIG. 12 may perform the communication method of FIG. 7 and the operations performed by the AP MLD in FIGS. 4 and 6 , and repeated descriptions are omitted here in order to avoid redundancy.
另一方面，处理模块1210可以被配置为：确定第七消息帧；收发模块1220可以被配置为：在多连接中的第一连接下发送第七消息帧，其中，第七消息帧可以包括与第一连接对应的接入点的变化的***信息。此外，图12所示的通信装置1200可以执行图11的通信方法以及图9和图10中由AP MLD执行的操作，为了避免冗余，在此省略重复的描述。On the other hand, the processing module 1210 may be configured to: determine the seventh message frame; the transceiver module 1220 may be configured to: send the seventh message frame under the first connection in the multiple connections, wherein the seventh message frame may include a Changed system information of the access point corresponding to the first connection. In addition, the communication apparatus 1200 shown in FIG. 12 may perform the communication method of FIG. 11 and the operations performed by the AP MLD in FIGS. 9 and 10 , and repeated descriptions are omitted here in order to avoid redundancy.
此外，图12所示的通信装置1200仅是示例性的，本公开的实施例不限于此，例如，通信装置1200还可以包括其他模块，例如，存储器模块等。此外，通信装置1200中的各个模块可以组合成更复杂的模块，或者可以划分为更多单独的模块。In addition, the communication apparatus 1200 shown in FIG. 12 is only exemplary, and embodiments of the present disclosure are not limited thereto, for example, the communication apparatus 1200 may further include other modules, such as a memory module and the like. Furthermore, the various modules in the communication apparatus 1200 may be combined into more complex modules, or may be divided into more separate modules.
根据本公开的实施例的通信方法和通信装置能够提供站点获取变化 的***信息的简明方法，满足多连接通信的需求，提高频谱利用率。The communication method and communication device according to the embodiments of the present disclosure can provide a concise method for a site to acquire changed system information, meet the requirements of multi-connection communication, and improve spectrum utilization.
基于与本公开的实施例所提供的方法相同的原理，本公开的实施例还提供了一种电子装置，该电子装置包括处理器和存储器；其中，存储器中存储有机器可读指令(也可以称为“计算机程序”)；处理器，用于执行机器可读指令以实现参照图2至图11描述的方法。Based on the same principle as the method provided by the embodiment of the present disclosure, the embodiment of the present disclosure further provides an electronic device, the electronic device includes a processor and a memory; wherein, the memory stores machine-readable instructions (or may referred to as a "computer program"); a processor for executing machine-readable instructions to implement the methods described with reference to FIGS. 2 to 11 .
本公开的实施例还提供了一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器执行时实现参照图2至图11描述的方法。Embodiments of the present disclosure also provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the methods described with reference to FIG. 2 to FIG. 11 are implemented.
在示例实施例中，处理器可以是用于实现或执行结合本公开内容所描述的各种示例性的逻辑方框、模块和电路，例如，CPU(Central Processing Unit，中央处理器)、通用处理器、DSP(Digital Signal Processor，数据信号处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、FPGA(Field Programmable Gate Array，现场可编程门阵列)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合、DSP和微处理器的组合等。In an example embodiment, a processor may be used to implement or execute various exemplary logical blocks, modules and circuits described in connection with the present disclosure, for example, a CPU (Central Processing Unit, central processing unit), general processing device, DSP (Digital Signal Processor, data signal processor), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field Programmable Gate Array, Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. A processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
在示例实施例中，存储器可以是，例如，ROM(Read Only Memory，只读存储器)、RAM(Random Access Memory，随机存取存储器)、EEPROM(Electrically Erasable Programmable Read Only Memory，电可擦可编程只读存储器)、CD-ROM(Compact Disc Read Only Memory，只读光盘)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的程序代码并能够由计算机存取的任何其他介质，但不限于此。In an example embodiment, the memory may be, for example, ROM (Read Only Memory), RAM (Random Access Memory), EEPROM (Electrically Erasable Programmable Read Only Memory) Read memory), CD-ROM (Compact Disc Read Only Memory, CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic A storage device, or any other medium that can be used to carry or store program code in the form of instructions or data structures and that can be accessed by a computer, without limitation.
应该理解的是，虽然附图的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，其可以以其他的顺序执行。此外，附图的流程图中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成， 而是可以在不同的时刻执行，其执行顺序也不必然是依次进行，而是可以与其他步骤或者其他步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。It should be understood that although the various steps in the flowchart of the accompanying drawings are sequentially shown in the order indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order and may be performed in other orders. In addition, at least a part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and the execution sequence is also It does not have to be performed sequentially, but may be performed alternately or alternately with other steps or at least a portion of sub-steps or stages of other steps.
虽然已经参照本公开的某些实施例示出和描述了本公开，但是本领域技术人员将理解，在不脱离本公开的范围的情况下，可以在形式和细节上进行各种改变。因此，本公开的范围不应被限定为受限于实施例，而是应由所附权利要求及其等同物限定。Although the present disclosure has been shown and described with reference to certain embodiments of the present disclosure, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited by the embodiments, but should be defined by the appended claims and their equivalents.

Claims (34)

  1. 一种多连接下的通信方法，应用于支持多连接通信的站点，所述通信方法包括：A multi-connection communication method, applied to a site supporting multi-connection communication, the communication method comprising:
    确定第一消息帧；determine the first message frame;
    在多连接中的第一连接下发送第一消息帧，其中，所述第一消息帧包括第一信息，所述第一信息包括与所述第一连接所对应的接入点的***信息变化有关的第一改变序列标识。A first message frame is sent under the first connection in the multiple connections, wherein the first message frame includes first information, and the first information includes system information changes of the access point corresponding to the first connection The associated first change sequence identifier.
  2. 根据权利要求1所述通信方法，其中，所述通信方法还包括：The communication method according to claim 1, wherein the communication method further comprises:
    在不同于所述第一连接的另一连接下，发送第二消息帧，sending a second message frame under another connection different from the first connection,
    其中，所述第二消息帧包括与所述另一连接所对应的接入点的***信息变化有关的另一改变序列标识。Wherein, the second message frame includes another change sequence identifier related to the change of the system information of the access point corresponding to the other connection.
  3. 根据权利要求2所述的通信方法，其中，所述通信方法包括：The communication method according to claim 2, wherein the communication method comprises:
    在所述第一连接和所述另一连接下分别接收第三消息帧，其中，所述第三消息帧包括指示相应连接的接入点的变化的***信息。A third message frame is received under the first connection and the other connection, respectively, wherein the third message frame includes system information indicating a change of access point of the corresponding connection.
  4. 根据权利要求2或3所述的通信方法，其中，所述通信方法包括：The communication method according to claim 2 or 3, wherein the communication method comprises:
    在所述第一连接和所述另一连接下分别接收第四消息帧，其中，所述第四消息帧包括指示相应连接的接入点的***信息发生变化的信息标识。A fourth message frame is respectively received under the first connection and the another connection, wherein the fourth message frame includes an information identifier indicating that the system information of the access point of the corresponding connection has changed.
  5. 根据权利要求1所述通信方法，其中，所述第一信息还包括：与不同于所述第一连接的其他连接所对应的接入点的***信息变化有关的其他改变序列标识。The communication method according to claim 1, wherein the first information further comprises: other change sequence identifiers related to system information changes of access points corresponding to other connections different from the first connection.
  6. 根据权利要求5所述通信方法，其中，所述第一信息还包括：与所述第一连接和/或所述其他连接分别相对应的连接标识。The communication method according to claim 5, wherein the first information further comprises: connection identifiers corresponding to the first connection and/or the other connections respectively.
  7. 根据权利要求5所述的通信方法，其中，所述通信方法包括：The communication method according to claim 5, wherein the communication method comprises:
    在所述第一连接下接收第五消息帧，receiving a fifth message frame under said first connection,
    其中，所述第五消息帧包括：指示所述第一连接和所述其他连接所对应的接入点的变化的***信息、以及所述第一连接和/或所述其他连接的连接标识。The fifth message frame includes: system information indicating changes of access points corresponding to the first connection and the other connections, and connection identifiers of the first connection and/or the other connections.
  8. 根据权利要求5至7中的任一项所述的通信方法，其中，所述通信方法还包括：The communication method according to any one of claims 5 to 7, wherein the communication method further comprises:
    在所述第一连接下接收第六消息帧，其中，所述第六消息帧包括第二信息，所述第二信息包括指示与所述第一连接相对应的接入点的***信息发生变化的信息标识。A sixth message frame is received under the first connection, wherein the sixth message frame includes second information including a change in system information indicating an access point corresponding to the first connection information identification.
  9. 根据权利要求8所述的通信方法，其中，所述第二信息还包括：指示与不同于所述第一连接的其他连接相对应的接入点的***信息发生变化的信息标识。The communication method according to claim 8, wherein the second information further comprises: an information identifier indicating that system information of an access point corresponding to a connection other than the first connection has changed.
  10. 一种多连接下的通信方法，应用于支持多连接通信的接入点，所述通信方法包括：A multi-connection communication method, applied to an access point supporting multi-connection communication, the communication method comprising:
    在多连接中的第一连接下接收第一消息帧，其中，所述第一消息帧包括第一信息，所述第一信息包括与所述第一连接所对应的接入点的***信息变化有关的第一改变序列标识；A first message frame is received under a first connection in multiple connections, wherein the first message frame includes first information, and the first information includes a change in system information of an access point corresponding to the first connection the relevant first change sequence identification;
    基于所述第一消息帧，执行相应的通信操作。Based on the first message frame, a corresponding communication operation is performed.
  11. 根据权利要求10所述的通信方法，其中，所述通信方法还包括：The communication method according to claim 10, wherein the communication method further comprises:
    在不同于所述第一连接的另一连接下，接收第二消息帧，receiving a second message frame under another connection different from said first connection,
    其中，所述第二消息帧包括与所述另一连接所对应的接入点的***信息变化有关的另一改变序列标识。Wherein, the second message frame includes another change sequence identifier related to the change of the system information of the access point corresponding to the other connection.
  12. 根据权利要求11所述的通信方法，其中，所述通信方法还包括：The communication method according to claim 11, wherein the communication method further comprises:
    在所述第一连接和所述另一连接下分别发送第三消息帧，其中，所述 第三消息帧包括指示相应连接的接入点的变化的***信息。A third message frame is sent under the first connection and the other connection, respectively, wherein the third message frame includes system information indicating a change of the access point of the corresponding connection.
  13. 根据权利要求11或12所述的通信方法，其中，所述通信方法包括：The communication method according to claim 11 or 12, wherein the communication method comprises:
    在所述第一连接和所述另一连接下分别发送第四消息帧，其中，所述第四消息帧包括指示相应连接的接入点的***信息发生变化的信息标识。A fourth message frame is respectively sent under the first connection and the other connection, wherein the fourth message frame includes an information identifier indicating that the system information of the access point of the corresponding connection has changed.
  14. 根据权利要求10所述的通信方法，其中，所述第一信息还包括：与不同于所述第一连接的其他连接所对应的接入点的***信息变化有关的其他改变序列标识。The communication method according to claim 10, wherein the first information further comprises: other change sequence identifiers related to system information changes of access points corresponding to other connections different from the first connection.
  15. 根据权利要求14所述的通信方法，其中，所述第一信息还包括：与所述第一连接和/或所述其他连接分别相对应的连接标识。The communication method according to claim 14, wherein the first information further comprises: connection identifiers corresponding to the first connection and/or the other connections respectively.
  16. 根据权利要求14所述的通信方法，其中，所述通信方法还包括：The communication method according to claim 14, wherein the communication method further comprises:
    在所述第一连接下发送第五消息帧，sending a fifth message frame under the first connection,
    其中，所述第五消息帧包括：指示所述第一连接和所述其他连接所对应的接入点的变化的***信息、以及所述第一连接和/或所述其他连接的连接标识。The fifth message frame includes: system information indicating changes of access points corresponding to the first connection and the other connections, and connection identifiers of the first connection and/or the other connections.
  17. 根据权利要求14至16中的任一项所述的通信方法，其中，所述通信方法还包括：The communication method according to any one of claims 14 to 16, wherein the communication method further comprises:
    在所述第一连接下发送第六消息帧，其中，所述第六消息帧包括第二信息，所述第二信息包括指示与所述第一连接相对应的接入点的***信息发生变化的信息标识。A sixth message frame is sent under the first connection, wherein the sixth message frame includes second information including a change in system information indicating an access point corresponding to the first connection information identification.
  18. 根据权利要求17所述的通信方法，其中，所述第二信息还包括：指示与不同于所述第一连接的其他连接相对应的接入点的***信息发生变化的信息标识。The communication method according to claim 17, wherein the second information further comprises: an information identifier indicating that system information of an access point corresponding to a connection other than the first connection has changed.
  19. 一种多连接下的通信方法，应用于支持多连接通信的站点，所述通信方法包括：A multi-connection communication method, applied to a site supporting multi-connection communication, the communication method comprising:
    在所述多连接中的第一连接下接收第七消息帧，其中，所述第七消息帧包括与所述第一连接对应的接入点的变化的***信息；receiving a seventh message frame under a first connection in the multiple connections, wherein the seventh message frame includes changed system information of an access point corresponding to the first connection;
    基于所述第七消息帧，执行相应的通信操作。Based on the seventh message frame, a corresponding communication operation is performed.
  20. 根据权利要求19所述的通信方法，其中，所述通信方法还包括：The communication method according to claim 19, wherein the communication method further comprises:
    在不同于所述第一连接的另一连接下，接收第八消息帧，其中，所述第八消息帧包括与所述另一连接对应的接入点的变化的***信息。Under another connection different from the first connection, an eighth message frame is received, wherein the eighth message frame includes changed system information of an access point corresponding to the other connection.
  21. 根据权利要求20所述的通信方法，其中，所述通信方法还包括：The communication method according to claim 20, wherein the communication method further comprises:
    在所述第一连接和所述另一连接下，分别接收第九消息帧，under the first connection and the another connection, respectively receiving a ninth message frame,
    其中，所述第九消息帧包括指示相应连接的接入点的***信息发生变化的信息标识。Wherein, the ninth message frame includes an information identifier indicating that the system information of the corresponding connected access point has changed.
  22. 根据权利要求19所述的通信方法，其中，所述第七消息帧还包括：与不同于所述第一连接的其他连接对应的接入点的变化的***信息、以及所述第一连接和/或所述其他连接的连接标识。The communication method according to claim 19, wherein the seventh message frame further includes: changed system information of access points corresponding to other connections different from the first connection, and the first connection and /or the connection identifier of the other connection.
  23. 根据权利要求22所述的通信方法，其中，所述通信方法还包括：The communication method according to claim 22, wherein the communication method further comprises:
    在所述第一连接下，接收第十消息帧，Under said first connection, a tenth message frame is received,
    其中，所述第十消息帧包括指示与所述第一连接和所述其他连接对应的接入点的***信息发生变化的信息标识。Wherein, the tenth message frame includes an information identifier indicating that the system information of the access points corresponding to the first connection and the other connections has changed.
  24. 一种多连接下的通信方法，应用于支持多连接通信的接入点，所述通信方法包括：A multi-connection communication method, applied to an access point supporting multi-connection communication, the communication method comprising:
    确定第七消息帧；determine the seventh message frame;
    在所述多连接中的第一连接下发送第七消息帧，其中，所述第七消息 帧包括与所述第一连接对应的接入点的变化的***信息。A seventh message frame is sent under a first connection in the multiple connections, wherein the seventh message frame includes system information of changes of access points corresponding to the first connection.
  25. 根据权利要求24所述的通信方法，其中，所述通信方法还包括：The communication method according to claim 24, wherein the communication method further comprises:
    在不同于所述第一连接的另一连接下，发送第八消息帧，sending an eighth message frame under another connection different from the first connection,
    其中，所述第八消息帧包括与所述另一连接对应的接入点的变化的***信息。Wherein, the eighth message frame includes the changed system information of the access point corresponding to the other connection.
  26. 根据权利要求25所述的通信方法，其中，所述通信方法还包括：The communication method according to claim 25, wherein the communication method further comprises:
    在所述第一连接和所述另一连接下，分别发送第九消息帧，Under the first connection and the another connection, the ninth message frame is respectively sent,
    其中，所述第九消息帧包括指示相应连接的接入点的***信息发生变化的信息标识。Wherein, the ninth message frame includes an information identifier indicating that the system information of the corresponding connected access point has changed.
  27. 根据权利要求24所述的通信方法，其中，所述第七消息帧还包括：与不同于所述第一连接的其他连接对应的接入点的变化的***信息、以及所述第一连接和/或所述其他连接的连接标识。The communication method according to claim 24, wherein the seventh message frame further includes: changed system information of access points corresponding to other connections different from the first connection, and the first connection and /or the connection identifier of the other connection.
  28. 根据权利要求27所述的通信方法，其中，所述通信方法还包括：The communication method according to claim 27, wherein the communication method further comprises:
    在所述第一连接下，发送第十消息帧，Under the first connection, a tenth message frame is sent,
    其中，所述第十消息帧包括指示与所述第一连接和所述其他连接对应的接入点的***信息发生变化的信息标识。Wherein, the tenth message frame includes an information identifier indicating that the system information of the access points corresponding to the first connection and the other connections has changed.
  29. 一种多连接下的通信装置，应用于支持多连接通信的站点，所述通信装置包括：A multi-connection communication device, applied to a site supporting multi-connection communication, the communication device comprising:
    处理模块，被配置为：确定第一消息帧；a processing module, configured to: determine the first message frame;
    收发模块，被配置为：在所述多连接中的第一连接下发送第一消息帧，其中，所述第一消息帧包括第一信息，所述第一信息包括与所述第一连接所对应的接入点的***信息变化有关的第一改变序列标识。a transceiver module configured to: send a first message frame under a first connection in the multiple connections, wherein the first message frame includes first information, and the first information includes a connection with the first connection The first change sequence identifier related to the change of the system information of the corresponding access point.
  30. 一种多连接下的通信装置，应用于支持多连接通信的接入点，所 述通信装置包括：A communication device under multi-connection, applied to an access point supporting multi-connection communication, the communication device comprises:
    收发模块，被配置为：在所述多连接中的第一连接下接收第一消息帧，其中，所述第一消息帧包括第一信息，所述第一信息包括与所述第一连接所对应的接入点的***信息变化有关的第一改变序列标识；A transceiver module configured to: receive a first message frame under a first connection in the multiple connections, wherein the first message frame includes first information, and the first information includes a connection with the first connection a first change sequence identifier related to the change of the system information of the corresponding access point;
    处理模块，被配置为：基于所述第一消息帧，执行相应的通信操作。The processing module is configured to: perform a corresponding communication operation based on the first message frame.
  31. 一种多连接下的通信装置，应用于支持多连接通信的站点，所述通信装置包括：A multi-connection communication device, applied to a site supporting multi-connection communication, the communication device comprising:
    收发模块，被配置为：在所述多连接中的第一连接下接收第七消息帧，其中，所述第七消息帧包括与所述第一连接对应的接入点的变化的***信息；a transceiver module, configured to: receive a seventh message frame under a first connection in the multiple connections, wherein the seventh message frame includes system information of changes of access points corresponding to the first connection;
    处理模块，被配置为：基于所述第七消息帧，执行相应的通信操作。The processing module is configured to: perform a corresponding communication operation based on the seventh message frame.
  32. 一种多连接下的通信装置，应用于支持多连接通信的接入点，所述通信装置包括：A multi-connection communication device applied to an access point supporting multi-connection communication, the communication device comprising:
    处理模块，被配置为：确定第七消息帧；a processing module, configured to: determine the seventh message frame;
    收发模块，被配置为：在所述多连接中的第一连接下发送第七消息帧，所述第七消息帧包括与所述第一连接对应的接入点的变化的***信息。The transceiver module is configured to: send a seventh message frame under the first connection in the multiple connections, where the seventh message frame includes system information of the change of the access point corresponding to the first connection.
  33. 一种电子装置，包括存储器、处理器及存储在所述存储器上并在所述处理器上可运行的计算机程序，其中，所述处理器执行所述计算机程序时实现权利要求1至9中的任一项、权利要求10至18中的任一项、权利要求19至23中的任一项、或者权利要求24至28中的任一项所述的方法。An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the computer program of claims 1 to 9 when the processor executes the computer program The method of any one of claims 10 to 18, any one of claims 19 to 23, or any one of claims 24 to 28.
  34. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现权利要求1至9中的任一项、权利要求10至18中的任一项、权利要求19至23中的任一项、或者权利要求24至28中的任一项所述的方法。A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, any one of Claims 1 to 9 and Claims 10 to 18 are implemented. The method of any one of claims 19 to 23, or any one of claims 24 to 28.
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