CN114501584B

CN114501584B - Method, device and storage medium for requesting and transmitting multi-link system message

Info

Publication number: CN114501584B
Application number: CN202011254325.4A
Authority: CN
Inventors: 吴昊
Original assignee: Jimi Technology Co ltd
Current assignee: Jimi Technology Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2023-06-27
Anticipated expiration: 2040-11-11
Also published as: CN114501584A; WO2022100130A1

Abstract

The application discloses a method, a device and a storage medium for requesting and sending a multilink system message, and relates to the field of wireless communication. The method comprises the following steps: and sending a detection request message, wherein the detection request message comprises Multi Link Element parameters, the Multi Link Element parameters comprise at least one MLD Profile parameter and zero or at least one Requested Info parameter, and the MLD Profile parameter comprises parameters MLD Address and Link ID. The method and the device support acquisition of the multilink system messages of a plurality of logic access points in the multilink network access equipment in a mode that the terminal sends the probe request message request, and the multilink network access equipment sets the probe response message according to the parameters in the probe request message, and sends the corresponding multilink system message to the terminal in the probe response message. Meanwhile, through the parameter setting mode, the information structure is simple, and wireless resources are saved.

Description

Method, device and storage medium for requesting and transmitting multi-link system message

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, and a storage medium for requesting and transmitting a multilink system message.

Background

802.11be networks, also known as Extremely High Throughput (EHT) networks, enhance functionality through a range of system characteristics and mechanisms to achieve extremely high throughput. As the use of Wireless Local Area Networks (WLANs) continues to grow, it is increasingly important to provide wireless data services in many environments, such as homes, businesses, and hotspots. In particular, video traffic will continue to be the dominant traffic type in many WLAN deployments. The throughput requirements of these applications are evolving due to the advent of 4k and 8k video (20 Gbps uncompressed rate). New high throughput, low latency applications such as virtual reality or augmented reality, gaming, remote offices, and cloud computing will proliferate (e.g., latency for real-time gaming is less than 5 milliseconds).

In view of the high throughput and stringent real-time delay requirements of these applications, users desire to support their applications over a WLAN with higher throughput, higher reliability, less delay and jitter, and higher power efficiency. Users desire improved integration with Time Sensitive Networks (TSNs) to support applications on heterogeneous ethernet and wireless LANs. The 802.11be network aims to ensure the competitiveness of WLAN by further improving the overall throughput and reducing the delay while ensuring backward compatibility and coexistence with legacy technology standards. 802.11 compatible devices operating in the 2.4GHz,5GHz and 6GHz frequency bands.

Disclosure of Invention

In a multilink scenario, the multilink network access device should be able to provide information of its included multiple logical access points to the multilink terminal by broadcasting. Meanwhile, the system information of a plurality of multi-link network access devices belonging to the same multi-BSSID set can be obtained by the multi-link terminal under the multi-BSSID scene. There are two ways of broadcasting, in which an access point sends a Beacon message and sends a probe response (probe response) message in response to a probe request (probe request) of a terminal, because a multilink system message including other access devices is required, and the Beacon message is prevented from being excessively loaded, the present application provides a method for supporting acquisition of multilink system messages of multiple logical access points in a multilink network access device by sending the probe request message request by the terminal.

In a first aspect, the present application provides a method for requesting a multilink system message, comprising:

transmitting a probe request message, wherein the probe request message comprises Multi Link Element parameters, the Multi Link Element parameters comprise at least one MLD Profile parameter and zero or at least one Requested Info parameter, the MLD Profile parameter comprises parameters MLD Address and Link ID, the MLD Address is used for representing an Address of a multi-Link network access device, the Link ID is used for representing an identifier of a Link running on the multi-Link network access device, and the Requested Info is used for representing a system message of the Requested multi-Link network access device.

In one possible implementation manner, the MLD Profile parameter includes an ML-Control parameter and zero or at least one Requested MLD Info parameter, the parameters MLD Address and Link ID are included in the ML-Control parameter, and the Requested MLD Info is used for representing a system message of the requested multi-Link network access device corresponding to the MLD Address.

In a possible implementation manner, the MLD Profile parameter includes at least one STA Profile parameter, where the STA Profile parameter includes a Link ID parameter and zero or at least one Requested STA Info parameter, and the Requested STA Info is used to represent a system message of a logical access point corresponding to the Link ID in the requested multi-Link network access device corresponding to the MLD Address.

In one possible implementation manner, the MLD Profile parameter or the ML-Control parameter further includes a parameter All-Link indication, where the All-Link indication is used to indicate whether to request a multilink system message of a logical access point corresponding to All links on the multilink network access device.

In one possible implementation, the Multi link Element parameter, the MLD Profile parameter, or the STA Profile parameter further includes a parameter Complete Info, which is used to indicate whether all the multi-link system messages are requested.

In one possible implementation, when the parameter Complete Info is set to indicate that all multi-link system messages are Requested, the value of the Requested Info parameter is not included in the Multi link Element parameter, or the Requested MLD Info parameter is not included in the MLD Profile parameter, or the Requested STA Info parameter is not included in the STA Profile parameter, or the value of the Requested Info parameter or Requested MLD Info parameter or Requested STA Info parameter is set to null.

In a possible implementation manner, the Multi link Element parameter further includes an Element ID and a Length, where the Element ID is used to represent an identifier of the Multi link Element parameter, and the Length is used to represent a Length of the Multi link Element parameter.

In a second aspect, the present application provides a method for sending a multilink system message, including:

receiving a probe request message sent by a terminal, wherein the probe request message comprises Multi Link Element parameters, the Multi Link Element parameters comprise at least one MLD Profile parameter and zero or at least one Requested Info parameter, the MLD Profile parameter comprises parameters MLD Address and Link ID, the MLD Address is used for representing the Address of a multi-Link network access device, the Link ID is used for representing the identification of a Link running on the multi-Link network access device, and the Requested Info is used for representing the system message of the Requested multi-Link network access device;

Or the MLD Profile parameter includes an ML-Control parameter and zero or at least one Requested MLD Info parameter, the parameters MLD Address and Link ID are included in the ML-Control parameter, and the Requested MLD Info is used for representing a system message of the requested multi-Link network access device corresponding to the MLD Address;

or the MLD Profile parameter includes at least one STA Profile parameter, where the STA Profile parameter includes a Link ID parameter and zero or at least one Requested STA Info parameter, and the Requested STA Info is used to represent a system message of a logical access point corresponding to a Link ID in the requested multi-Link network access device corresponding to the MLD Address;

and setting a detection response message according to the Multi link Element parameter in the detection request message, and sending the detection response message.

In a possible implementation manner, the setting a probe response message according to the Multi link Element parameter in the probe request message includes:

determining a multi-link network access device needing to feed back a multi-link system message according to a parameter MLD Address in the MLD Profile parameter;

determining a logic access point to be contained in a detection response message according to a parameter Link ID in an MLD Profile parameter, or an All-Link indication and a Link ID, wherein the All-Link indication is contained in the MLD Profile parameter or the ML-Control parameter and is used for indicating whether to request a multilink system message of the logic access point corresponding to All links on the multilink network access device;

After determining the logical access point, the parameters of the request are set according to the Requested Info or Requested MLD Info or Requested STA Info, including the parameters listed in the Requested Info or Requested MLD Info or Requested STA Info in the probe response message.

if All-Link indication indicates a multi-Link system message requesting for All logical access points corresponding to All links on the multi-Link network access device, taking All the logical access points contained in the multi-Link network access device as the logical access points contained in the detection response message;

if All-Link indication indicates a multilink system message which does not request the logical access points corresponding to All links on the multilink network access device, using the corresponding logical access points as the logical access points which are contained in the detection response message according to the Link ID;

the All-Link indication is included in an MLD Profile parameter or an ML-Control parameter, and is used for indicating whether to request the multilink system message of the logical access point corresponding to All links on the multilink network access device.

if the Complete Info indicates that all the multi-link system messages are requested, all the multi-link system messages corresponding to the logic access point are contained in the detection response message;

if Complete Info indicates that not all the multilink system messages are Requested, setting the multilink system message contained in the probe response message according to the Requested Info or Requested MLD Info or Requested STA Info;

the Complete Info is included in Multi link Element parameter or MLD Profile parameter or STA Profile parameter to indicate whether all the multi-link system messages are requested.

In a third aspect, the present application provides an apparatus for requesting a multilink system message, including:

a probe request message sending unit, configured to send a probe request message, where the probe request message includes a Multi Link Element parameter, the Multi Link Element parameter includes at least one MLD Profile parameter and zero or at least one Requested Info parameter, the MLD Profile parameter includes a parameter MLD Address and a Link ID, the MLD Address is used to indicate an Address of a multi-Link network access device, the Link ID is used to indicate an identifier of a Link running on the multi-Link network access device, and the Requested Info is used to indicate a system message of the Requested multi-Link network access device.

In a fourth aspect, the present application provides an apparatus for transmitting a multilink system message, including:

a probe request message receiving unit, configured to receive a probe request message sent by a terminal, where the probe request message includes a Multi Link Element parameter, the Multi Link Element parameter includes at least one MLD Profile parameter and zero or at least one Requested Info parameter, the MLD Profile parameter includes parameters MLD Address and Link ID, the MLD Address is used to indicate an Address of a multi-Link network access device, the Link ID is used to indicate an identifier of a Link running on the multi-Link network access device, and the Requested Info is used to indicate a system message of the multi-Link network access device that wants to request;

or the MLD Profile parameter includes an ML-Control parameter and zero or at least one Requested MLD Info parameter, the parameters MLD Address and Link ID are included in the ML-Control parameter, and the Requested MLD Info is used for indicating a system message of a multilink network access device corresponding to the MLD Address that wants to request;

or the MLD Profile parameter includes at least one STA Profile parameter, where the STA Profile parameter includes a Link ID parameter and zero or at least one Requested STA Info parameter, and the Requested STA Info is used to indicate a system message of a logical access point corresponding to a Link ID in a multi-Link network access device corresponding to an MLD Address that wants to request;

And the detection response message sending unit is used for setting a detection response message according to the Multi link Element parameter in the detection request message and sending the detection response message.

In one possible implementation manner, the probe response message sending unit sets a probe response message according to a Multi link Element parameter in the probe request message, including:

In a fifth aspect, the present application provides another apparatus for requesting a multilink system message, the apparatus comprising a processor and a memory, the memory having stored therein at least one program code, the at least one program code being loaded and executed by the processor to implement a method for requesting a multilink system message as described in the first aspect or a possible implementation of the first aspect.

In a sixth aspect, the present application provides another apparatus for sending a multilink system message, the apparatus comprising a processor and a memory, the memory having stored therein at least one program code, the at least one program code being loaded and executed by the processor to implement a method for sending a multilink system message as described in the second aspect or a possible implementation of the second aspect.

In a seventh aspect, the present application provides a storage medium, wherein at least one program code is stored in the storage medium, and the at least one program code is loaded and executed by a processor to implement a method for requesting a multilink system message as described in the first aspect or a possible implementation of the first aspect, or a method for transmitting a multilink system message as described in the second aspect or a possible implementation of the second aspect.

It should be noted that, the apparatuses according to the third aspect and the fifth aspect of the present application are configured to implement the method provided by the first aspect, the apparatuses according to the fourth aspect and the sixth aspect of the present application are configured to implement the method provided by the second aspect of the present application, and the storage medium according to the seventh aspect is configured to perform the method provided by the first aspect or the second aspect of the present application, so that the same advantages as those of the method provided by the first aspect or the second aspect of the present application may be achieved, and embodiments of the present application will not be repeated.

The method and the device support acquisition of the multilink system messages of a plurality of logic access points in the multilink network access equipment through the mode that the terminal requests through the detection request message, the multilink network access equipment sets the detection response message according to the parameters in the detection request message, and the corresponding multilink system message is contained in the detection response message and is sent to the terminal. Meanwhile, through the parameter setting mode, the information structure is simple, and wireless resources are saved.

Detailed Description

In order to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application. Furthermore, while the disclosure has been presented in terms of an exemplary embodiment or embodiments, it should be understood that various aspects of the disclosure can be practiced separately from the disclosure in a complete subject matter. The following embodiments and features of the embodiments may be combined with each other without conflict.

In the embodiments of the present application, words such as "exemplary," "for example," and the like are used to indicate by way of example, illustration, or description. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term use of an example is intended to present concepts in a concrete fashion.

Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one from another, and the corresponding terms may or may not have the same meaning. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items.

In this embodiment of the present application, STA represents a terminal, AP MLD represents a multi-link network access device, where the multi-link network access device includes multiple logical access points, each logical access point performs a function of the network access device, each logical access point performs data transmission through a link, each logical access point includes an independent data transceiver module, and the link is a radio resource for transmitting data.

In one embodiment of the present application, the parameters that each AP MLD needs to feed back may be set independently, and the method for obtaining the multi-link system message includes the following steps:

s101, a terminal STA sends a probe request message, wherein the probe request message contains Multi link Element parameters, and Multi link Element parameters are set as shown in table 1.

TABLE 1

ElementID

Length

MLDProfile(x)

MLDProfile(y)

Wherein, the liquid crystal display device comprises a liquid crystal display device,

element ID: an identification representing Multi link Element parameters;

length: representing the length of the Multi link Element parameter.

MLD Profile (x), MLD Profile (y) means that MLD Profile parameters can be set to one or more, the settings of which are shown in Table 2.

TABLE 2

ML-Control

RequestedMLDInfo(x)

RequestedMLDInfo(y)

Where Requested MLD Info (x), requested MLD Info (y) indicate that one or more Requested MLD Info parameters may be set to indicate which system messages the terminal wants to request, each Requested MLD Info representing a parameter of one system message. Alternatively, if the Requested MLD Info parameter is not included, or the value of the Requested MLD Info parameter is set to null, this indicates that all system messages are requested.

An example of the ML-Control parameter settings is shown in Table 3.

TABLE 3 Table 3

MLDAddress

LinkID

MLD Address: an address representing the AP MLD;

link ID: the identity representing the link running on the AP MLD may be used to indicate the link or links.

The ML-Control parameter can also be set as shown in Table 4.

TABLE 4 Table 4

MLDAddress

All-Linkindication

LinkID

MLD Address: an address representing the AP MLD;

All-Link indication: the multilink system message indicating whether to request the logical access points corresponding to all links on the AP MLD may be one bit, for example, set to 1, indicate that the terminal requests the multilink system message of the logical access points corresponding to all links on the AP MLD, ignore the value of the Link ID parameter at this time, set to 0, indicate that the multilink system message of the corresponding logical access point is requested according to the value of the Link ID;

S102, after receiving the probe request message, the logic access point sets a probe response message according to an indication of a Multi link Element parameter in the message, and specifically includes:

s1021, determining the AP MLD needing to feed back the multi-link system message according to the MLD Address in the MLD Profile parameter.

S1022, determining a logic access point to be contained in the probe response message according to the Link ID in the MLD Profile parameter, or the All-Link indication and the Link ID. Typically, as an AP MLD, it maintains a table as shown in table 5 locally.

TABLE 5

LinkID	APAddress (logical access point address)
		(example) 1	11:12:13:14:15:16

Therefore, after determining the AP MLD according to the MLD Address, the logical access point may be determined according to the Link ID.

S1023, after the logic access point is determined, setting parameters of the terminal request according to Requested MLD Info, and including parameters listed in Requested MLD Info in a probe response message. Alternatively, if Requested MLD Info is not included in Multi Link Element or the value of Requested MLD Info is null, then all of the multilink system messages are included in the probe response message.

S1024, executing the steps S1021-S1023 for each MLD Profile parameter, wherein the determined multilink system message is contained in the probe response message.

In another embodiment of the present application, the method for obtaining the multi-link system message includes the following steps that all the AP MLDs need to perform feedback parameter unified setting:

s201. the terminal STA sends a probe request message, where the probe request message includes Multi link Element parameters, and exemplary Multi link Element parameter settings are shown in table 6.

TABLE 6

element ID: an identification representing Multi link Element parameters;

length: representing the length of the Multi link Element parameter.

MLD Profile (x), MLD Profile (y) means that MLD Profile parameters can be set to one or more, requested Info (x), requested Info (y) means that one or more Requested Info parameters can be set for indicating which system messages the terminal wants to request, each Requested Info representing a parameter of a system message. Alternatively, if the Requested Info parameter is not included, or the value of the Requested Info is null, this indicates that all system messages are Requested.

An example of the MLD Profile parameter settings is shown in table 7.

TABLE 7

MLDAddress

LinkID

MLD Address: an address representing the AP MLD;

The MLD Profile parameters may also be set as shown in table 8.

TABLE 8

MLDAddress

All-Linkindication

LinkID

MLD Address: an address representing the AP MLD;

S202, after receiving the probe request message, the logic access point sets a probe response message according to an indication of a Multi link Element parameter in the message, and specifically includes:

s2021, determining the AP MLD which needs to feed back the multi-link system message according to the MLD Address in the MLD Profile parameter.

S2022, determining a logic access point to be contained in the probe response message according to the Link ID in the MLD Profile parameter, or the All-Link indication and the Link ID. Typically, as an AP MLD, it maintains a table as shown in table 9 locally.

TABLE 9

LinkID	APAddress (logical access point address)
		(example) 1	11:12:13:14:15:16

S2023, executing steps S2021-S2022 on each MLD Profile parameter, and determining all logical access points required to be contained in the probe response message.

S2024, after determining the logic access point, setting parameters of the terminal request according to the request Info, and including parameters listed in the request Info in the probe response message. Alternatively, if the Requested Info is not included in Multi Link Element or the value of the Requested Info is null, then all the multilink system messages are included in the probe response message.

In yet another embodiment of the present application, each logical access point of the AP MLD may independently set parameters that need to be fed back, and the method for obtaining the multi-link system message includes the following steps:

s301, the terminal STA sends a probe request message, wherein the probe request message contains Multi link Element parameters, and Multi link Element parameters are set as shown in table 10.

Table 10

ElementID

Length

MLDProfile(x)

MLDProfile(y)

element ID: an identification representing Multi link Element parameters;

length: representing the length of the Multi link Element parameter.

MLD Profile (x), MLD Profile (y) indicates that MLD Profile parameters may be set to one or more, i.e., indicate system information requesting one or more AP MLDs.

The MLD Profile parameter settings are shown in table 11, for example.

TABLE 11

MLD Address: an address representing the AP MLD;

STA Profile (x), STA Profile (y) indicates that STA Profile parameters may be set to one or more, i.e., indicate system information requesting one or more logical access points.

An example of STA Profile parameter settings is shown in table 12.

Table 12

link ID: an identification representing a link running on the AP MLD, which may be used to indicate a link or links;

requested STA Info (x), requested STA Info (y) indicate that one or more Requested STA Info parameters may be set to indicate which system information the terminal wants to request, each Requested STA Info representing a parameter of a system message. Alternatively, if the Requested STA Info parameter is not included, or the Requested STA Info parameter has a null value, this indicates that all system messages are requested.

The MLD Profile parameter may also be set as shown in table 13.

TABLE 13

MLDAddress

All-Linkindication

STAProfile(x)

STAProfile(y)

the MLD Address, STA Profile (x) and STA Profile (y) have the same meaning as the corresponding parameters in table 11, and will not be described again here.

All-Link indication: the multi-Link system message indicating whether to request the logical access points corresponding to all links on the AP MLD may be one bit, for example, set to 1, indicating that the terminal requests the multi-Link system message of the logical access points corresponding to all links on the AP MLD, at this time, ignoring the value of the Link ID parameter in the STA Profile, set to 0, indicating that the multi-Link system message of the corresponding logical access point is requested according to the value of the Link ID in the STA Profile.

S302, after receiving the probe request message, the logic access point sets a probe response message according to an indication of Multi link Element parameters in the message, and specifically includes:

s3021, determining the AP MLD which needs to feed back the multi-link system message according to the MLD Address in the MLD Profile parameter.

S3022, determining a logic access point to be contained in the probe response message according to the Link ID in the STA Profile parameter. Typically, as an AP MLD, it maintains a table locally as shown in table 14.

TABLE 14

LinkID	APAddress (logical access point address)
		(example) 1	11:12:13:14:15:16

S3023, after the logical access point is determined, setting parameters of the terminal request according to Requested STA Info in the STA Profile, and including the parameters listed in Requested STA Info in a probe response message. Alternatively, if Requested STA Info is not included in Multi Link Element or the value of Requested STA Info is null, then all of the multilink system messages are included in the probe response message.

S3024, for each MLD Profile parameter and each STA Profile parameter contained in the MLD Profile parameters, executing according to the steps S3021-S3023, and containing the multilink system message determined by each logic access point according to the requested parameters in the probe response message.

In some embodiments, a parameter Complete Info may be added to either the Multi link Element parameter or the MLD Profile parameter or the STA Profile parameter, and the Multi link Element parameter or the MLD Profile parameter or the STA Profile parameter are set as shown in tables 15-17, respectively.

TABLE 15

Table 16

ML-Control

CompleteInfo

RequestedMLDInfo(x)

RequestedMLDInfo(y)

TABLE 17

LinkID

CompleteInfo

RequestedSTAInfo(x)

RequestedSTAInfo(y)

Wherein, complete Info: indicating whether all the multi-link system messages are Requested, it may be set to 1 bit, for example, when the value is set to 1, indicating that all the multi-link system messages are Requested, at this time, the Requested Info or Requested MLD Info or Requested STA Info may be ignored, or the Requested Info parameter may not be included in the Multi link Element parameter, the Requested MLD Info parameter may not be included in the MLD Profile parameter, or the Requested STA Info parameter may not be included in the STA Profile parameter, or the value of the Requested Info parameter or Requested MLD Info parameter or Requested STA Info parameter may be set to null; when its value is set to 0, this indicates a request for a multilink system message set by the Requested Info or Requested MLD Info or Requested STA Info. The other parameters have the same meanings as the corresponding parameters described above, and will not be described again here.

In some embodiments, if the MLD Profile parameter or the ML-Control parameter includes the parameter All-Link indication, for the logical access point, the operations performed according to the received probe request message may further include:

if the All-Link indication value is 1, all the logic access points contained in the AP MLD are used as logic access points contained in the probe response message;

if the All-Link indication value is 0, the corresponding logical access point is regarded as the logical access point reported in the probe response message according to the value of Link ID.

Alternatively, if the All-Link indication value is 0 and the Link ID is null, any logical access point that does not contain the AP MLD is in the probe response.

In some embodiments, if the Multi link Element parameter or the MLD Profile parameter or the STA Profile parameter includes the parameter Complete Info, for the logical access point, the operations performed after receiving the probe request message may further include:

if the complex Info value is 1, all the multilink system messages corresponding to the logical access point are contained in the probe response message;

if the Complete Info value is 0, the multilink system message contained in the probe response message is set according to the indication of the Requested Info or Requested MLD Info or Requested STA Info.

Alternatively, if the Complete Info value is 0 and the Requested Info or Requested MLD Info or Requested STA Info is null or does not include the Requested Info parameter or Requested MLD Info parameter or Requested STA Info parameter, the probe response message does not include the multilink system message of the corresponding logical access point or does not include the multilink system messages of all the logical access points of the corresponding AP MLD.

It should be noted that if the Requested Info parameter or the Requested MLD Info parameter or the Requested STA Info parameter is not included, it indicates that all system messages are Requested, then when the Complete Info is set to 1, the Requested Info parameter is not included in the Multi link Element parameter, the Requested MLD Info parameter is not included in the MLD Profile parameter, or the Requested STA Info parameter is not included in the STA Profile parameter, and at the same time, the Requested Info or Requested MLD Info or Requested STA Info is null to indicate a multilink system message that does not include a corresponding logical access point or a multilink system message that does not include all logical access points of a corresponding AP MLD. If the Requested Info parameter or Requested MLD Info parameter or Requested STA Info parameter is set to null, indicating that all system messages are Requested, then the Requested Info parameter or Requested MLD Info parameter or Requested STA Info parameter is set to null when Complete Info is set to 1, while the multilink system messages that do not contain a corresponding logical access point or all logical access points that do not contain a corresponding AP MLD are indicated by the absence of the Requested Info parameter or Requested MLD Info parameter or Requested STA Info parameter.

The embodiment of the application also provides a device for requesting the multilink system message, which is used for realizing the method for requesting the multilink system message related to the embodiment, and can be realized by hardware or can be realized by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above functions, for example, a probe request message transmission unit, etc.

The embodiment of the application also provides a device for sending the multilink system message, which is used for realizing the method for sending the multilink system message related to the embodiment, and can be realized by hardware or can be realized by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above functions, for example, a probe request message receiving unit, a probe response message transmitting unit, and the like.

The embodiment of the application also provides a device for requesting the multilink system message, which comprises a processor and a memory, wherein at least one program code is stored in the memory, and the at least one program code is loaded and executed by the processor, so as to realize the method for requesting the multilink system message related to the embodiment.

The embodiment of the application also provides a device for sending the multilink system message, which comprises a processor and a memory, wherein at least one program code is stored in the memory, and the at least one program code is loaded and executed by the processor to realize the method for sending the multilink system message related to the embodiment.

The embodiment of the present application further provides a storage medium, where at least one program code is stored in the storage medium, where the at least one program code is loaded and executed by a processor, so as to implement a method for requesting a multilink system message or sending a multilink system message according to the foregoing embodiment.

It should be understood that, in various embodiments of the present application, the sequence number of each process does not mean that the sequence of execution is sequential, and some or all of the steps may be executed in parallel or sequentially, where the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device or a terminal device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: u disk, removable hard disk, ROM, RAM) disk or optical disk, etc.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items. The character "/" herein generally indicates that the associated object is an "or" relationship.

The word "if" or "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for requesting a multilink system message, comprising:

sending a detection request message, wherein the detection request message comprises a multilink element parameter, the multilink element parameter at least comprises an MLDPprofile parameter and an MLDPprofile parameter in a RequestedInfo parameter, the MLDPprofile parameter comprises parameters MLDAddress and LinkID, the MLDAddress is used for representing the address of the multilink network access equipment, the LinkID is used for representing the identification of a link running on the multilink network access equipment, and the RequestedInfo is used for representing the system message of the requested multilink network access equipment;

When the mldpprofile parameter only includes the mldpprofile parameter and the mldpprofile parameter of the requestedlnfo parameter, the mldpprofile parameter includes at least the ML-Control parameter and the ML-Control parameter of the requestedlnfo parameter, the ML-Control parameter includes the parameters MLDAddress and LinkID, and the requestedlnfo is used for indicating a system message of the requested multilink network access device corresponding to the MLD Address.

2. The method for requesting a multi-link system message according to claim 1, wherein the mldpprofile parameter further comprises an All-link indication, where the All-link indication is used to indicate whether to request a multi-link system message of a logical access point corresponding to All links on the multi-link network access device;

when the MultilinkElement parameter only contains the MLDPprofile parameter and the MLDPprofile parameter in the RequestedInfo parameter, the ML-Control parameter contains the parameter All-Link indication.

3. The method for requesting a multi-link system message as recited in claim 1, further comprising a parameter CompleteInfo in a multilink element parameter or an mldpprofile parameter, wherein the CompleteInfo is used to indicate whether all multi-link system messages are requested.

4. A method of requesting a multilink system message as claimed in claim 3, wherein when parameter CompleteInfo is set to indicate that all multilink system messages are requested, the Multilink Element parameter does not contain the RequestedInfo parameter, or the mldpprofile parameter does not contain the RequestedInfo parameter, or the value of the RequestedInfo parameter or the RequestedInfo parameter is set to null.

5. The method for requesting a multilink system message according to claim 1, wherein the multilink element parameters further comprise parameters element id and Length, the element id is used for indicating an identifier of the multilink element parameter, and the Length is used for indicating a Length of the multilink element parameter.

6. A method of transmitting a multilink system message, comprising:

receiving a detection request message sent by a terminal, wherein the detection request message comprises a multilink element parameter, the multilink element parameter at least comprises an MLDPprofile parameter and an MLDPprofile parameter in a RequestedInfo parameter, the MLDPprofile parameter comprises parameters MLDAddress and Link ID, the MLDAddress is used for representing the address of a multilink network access device, the Link ID is used for representing the identification of a Link running on the multilink network access device, and the RequestedInfo is used for representing the system message of the requested multilink network access device;

When the mldpprofile parameter only comprises an mldpprofile parameter of the mldpprofile parameter and an mldpprofile parameter of the requestedlnfo parameter, the mldpprofile parameter at least comprises an ML-Control parameter of the ML-Control parameter and an ML-Control parameter of the requestedlnfo parameter, the ML-Control parameter comprises the parameters MLDAddress and LinkID, and the requestedlnfo is used for representing a system message of the requested multilink network access device corresponding to the MLD Address;

and setting a detection response message according to the multilink element parameter in the detection request message, and sending the detection response message.

7. The method for transmitting a multilink system message according to claim 6, wherein the setting a probe response message according to a multilink element parameter in the probe request message comprises:

determining a multi-link network access device needing to feed back a multi-link system message according to a parameter MLDAddress in the MLDPprofile parameter;

determining a logic access point to be contained in a detection response message according to a parameter LinkID in an MLDPprofile parameter, or an All-LinkDication, or an All-Link indication and a LinkID, wherein the All-Link indication is contained in the MLDPprofile parameter or the ML-Control parameter and is used for indicating whether to request a multilink system message of the logic access point corresponding to All links on the multilink network access device;

After determining the logical access point, the parameters listed in the RequestedInfo or RequestedMLDINfo are included in the probe response message according to the parameters of the RequestedInfo or RequestedMLDINfo set request.

8. The method for transmitting a multilink system message according to claim 6, wherein the setting a probe response message according to a multilink element parameter in the probe request message comprises:

if All-link information indicates a multi-link system message requesting for All logical access points corresponding to All links on the multi-link network access device, taking All the logical access points contained in the multi-link network access device as the logical access points contained in the detection response message;

if All-linkingindication indicates a multi-link system message which does not request the logical access points corresponding to All links on the multi-link network access device, the corresponding logical access points are used as the logical access points which are contained in the detection response message according to the LinkID;

the All-link indication is included in an mldpprofile parameter or an ML-Control parameter, and is used for indicating whether to request the multilink system message of the logical access point corresponding to All links on the multilink network access device.

9. The method for transmitting a multilink system message according to claim 6, wherein the setting a probe response message according to a multilink element parameter in the probe request message comprises:

if CompleteInfo indicates that all the multi-link system messages are requested, then all the multi-link system messages corresponding to the logic access point are contained in the detection response message;

if CompleteInfo indicates that not all the multilink system messages are Requested, setting the multilink system message contained in the probe response message according to the Requested Info or Requested MLDINfo;

the CompleteInfo is included in a multilink element parameter or an mldpprofile parameter or an STA Profile parameter to indicate whether all the multilink system messages are requested.

10. An apparatus for requesting a multilink system message, comprising:

a probe request message sending unit, configured to send a probe request message, where the probe request message includes a multilink element parameter, the multilink element parameter includes at least an mldpprofile parameter and an mldpprofile parameter in a requestedbfo parameter, the mldpprofile parameter includes parameters MLDAddress and LinkID, the MLDAddress is used to represent an address of a multi-link network access device, the LinkID is used to represent an identifier of a link running on the multi-link network access device, and the requestedbfo is used to represent a system message of the requested multi-link network access device;

11. The apparatus for requesting a multilink system message as claimed in claim 10, wherein the mldpprofile parameter further comprises an All-link indication, wherein the All-link indication is used for indicating whether to request the multilink system message of the logical access point corresponding to All links on the multilink network access device;

12. The apparatus for requesting a multi-link system message as recited in claim 10, further comprising a parameter CompleteInfo in a multilink element parameter or an mldpprofile parameter, the CompleteInfo indicating whether all multi-link system messages are requested.

13. An apparatus for transmitting a multilink system message, comprising:

a probe request message receiving unit, configured to receive a probe request message sent by a terminal, where the probe request message includes a multilink element parameter, the multilink element parameter includes at least an MLD Profile parameter and an mldpprofile parameter in a requestedbfo parameter, the mldpprofile parameter includes parameters MLDAddress and LinkID, the MLDAddress is used to indicate an address of a multilink network access device, the LinkID is used to indicate an identifier of a link running on the multilink network access device, and the requestedbfo is used to indicate a system message of the multilink network access device that wants to request;

and the detection response message sending unit is used for setting a detection response message according to the multilink element parameter in the detection request message and sending the detection response message.

14. The apparatus for transmitting a multilink system message as claimed in claim 13, wherein the probe response message transmitting unit sets the probe response message according to a multilink element parameter in the probe request message, comprising:

15. An apparatus for requesting a multilink system message, the apparatus comprising a processor and a memory having stored therein at least one program code, the at least one program code being loaded and executed by the processor to implement the method for requesting a multilink system message as recited in any one of claims 1-5.

16. An apparatus for transmitting a multilink system message, characterized in that the apparatus comprises a processor and a memory in which at least one piece of program code is stored, which is loaded and executed by the processor to implement the method for transmitting a multilink system message according to any of claims 6 to 9.

17. A storage medium having stored therein at least one program code that is loaded and executed by a processor to implement the method of requesting a multilink system message as claimed in any one of claims 1 to 5 or the method of transmitting a multilink system message as claimed in any one of claims 6 to 9.