When the dot11 ehtopperiod implemented value is true, and the terminal reads EHT Capabilities information in the probe message or probe response message of the scanned logical AP, the BSSDescription includes an EHT Capabilities parameter, and an EHT Capabilities parameter setting example is shown in table 3.

TABLE 3 Table 3

MAC Capability

PHY Capability

MAC Capability: MAC layer capabilities of EHT systems;

PHY Capability: physical layer capabilities of the EHT system;

illustratively, MAC Capability contains one or more of the parameters shown in table 4.

TABLE 4 Table 4

PHY Capability contains one or more of the parameters shown in table 5.

TABLE 5

When the dot11 ehtopperiod implemented value is true, and the terminal reads EHT operation information in the beacon message or the probe response message of the scanned logical AP, the BSSDescription includes an EHT operation parameter, and the EHT operation parameter includes one or more parameters shown in table 6.

TABLE 6

When the dot11MultilinkOptionImplemented value is true, or when the dot11EHTOptionImplemented value is true and the dot11MultilinkOptionImplemented value is true, and the terminal reads ML Elements information in the scanned beacon message or probe response message of the logical AP, including ML Elements parameters, the ML Elements parameter settings are shown in Table 7, for example.

TABLE 7

MLD common info

STA info 1

STA info n

MLD common info: indicating a multilink common parameter of the access device;

STA info 1-STA info n: a proprietary parameter indicating a single logical AP in the access device, 1-n representing that there may be one or more logical APs, the parameter n being determined by the number of logical APs actually operated by the access device;

The STA info 1-n parameters may be set as shown in table 8.

TABLE 8

Link ID

STA Capability

STA operation

Link ID: an identification indicating a link on which the logical AP operates;

STA Capability: indicating a capability parameter specific to the logical AP;

STA operation: indicating operating parameters specific to the logical AP.

After the SME receives the MLME-SCAN. Confirm primitive, the BSSDescription information in the BSSDescription set parameter is stored locally.

When the current signal quality is reduced or the current signal is lost or the current network is overloaded, reading logic AP information matched with the network capacity in the locally stored BSSDescription according to the locally stored capacity parameter, taking logic APs capable of meeting the capacity of all terminals as candidate logic APs, measuring the candidate logic APs, sequencing the measurement signals, selecting the logic AP with the best signal quality, comparing the logic APs with a preset connection threshold value T1, sending an MLME-JOIN request primitive to the MLME if the logic AP with the best signal quality is higher than the threshold value, taking other logic APs as candidate logic APs, measuring the logic APs, sequencing the measurement signals, selecting the logic AP with the best signal quality, comparing the logic AP with the preset connection threshold value T1, sending the MLME-JOIN request primitive to the MLME if the logic AP with the best signal quality is lower than the connection threshold value T1, and maintaining the current connection if the logic AP with the best signal quality is lower than the connection threshold value T1.

The sme sends an MLME-join.request primitive to the MLME, the MLME-join.request primitive containing parameters:

SelectedBSS: specified logical AP information, the logical AP being selected by the SME from BSSDescription in the received MLME-SCAN. Confirm primitive;

JoinFailureTimeout: the maximum time allowed by the process of adding the terminal to the logic AP is taken as a unit of a beacon transmission interval of the logic AP;

navsmdel: a delay time allowed for transmission from the sleep state to the awake state;

operational RateSet: the terminal and the logic AP communicate data rates which can be supported;

EHT Capabilities: when the dot11 ehtopperiod implemented is true, the parameter is included, and the parameter is used for indicating the EHT system capability parameter of the terminal, and the parameter item is the same as the EHT capabilities parameter acquired from the access device in step 4.

After the MLME receives the MLME-JOIN. Request primitive, the operation may be performed in one of the following ways:

1) After timing synchronization is completed with a logic AP designated in the received primitive, setting a parameter ResultCode as SUCCESS, setting the parameter ResultCode as JOIN_FAILURE_TIMEOUT if synchronization is not completed at JoinFailureTimeout time, and sending an MLME-JOIN_confirm primitive to the SME;

2) If the SelectdBSS in the primitive contains a plurality of logic APs and the contained logic APs are all affiliated to the same multi-link access device, carrying out timing synchronization with the logic APs appointed in the received primitive, setting a parameter ResultCode as SUCCESS after the synchronization is completed, sending an MLME-JOIN. Confirm primitive to the SME, and if the SelectdBSS in the primitive contains a plurality of logic APs and the contained logic APs are affiliated to different multi-link access devices, setting the parameter ResultCode as NOT_SUPPORED and sending the MLME-JOIN. Confirm primitive to the SME;

3) If the MLME receives the parameter SelectedBSS in the MLME-JOIN. Request primitive containing the parameter Basic EHT-MCS and NSS set, in which if a < EHT-MCS, NSS > tuple is contained that is NOT SUPPORTED by any terminal and that is used to describe the number of spatial streams and the modulation and demodulation policies SUPPORTED by the STA, the ResultCode parameter value is set to not_supported, or join_FAILURE_timeout, in the MLME-JOIN. Confirm primitive.

The MLME-join. Confirm primitive contains parameters:

ResultCode: the result of the synchronization is indicated, for example, with a value set to SUCCESS indicating that the synchronization was successful, with a value set to JOIN _ FAILURE _ TIMEOUT indicating that the synchronization was failed, and with a value set to NOT _ SUPPORTED indicating that the terminal cannot fully support the operating parameters of the access device.

In some embodiments, the parameters ML Elements in BSSDescription are contained in the parameters EHT capabilities or parameters EHT operations, with the following possible ways:

1) Contained in the EHT capabilities parameters, the EHT capabilities parameter settings are shown in table 9, for example.

TABLE 9

MAC Capability

PHY Capability

ML Elements

2) The parameters included in the MAC capabilities included in the subparameter MAC capabilities of the EHT capabilities parameters are shown in table 10.

Table 10

3) The EHT operation parameter is included in an EHT operation parameter setting example in table 11.

TABLE 11

4) Parameters related to multilink capability in ML elements are included in EHT capabilities parameters, and parameters related to multilink operation in ML elements are included in EHT operation parameters.

5) Parameters related to multilink Capability in ML elements are included in the MAC Capability parameters, and parameters related to multilink operation in ML elements are included in the EHT operation parameters.

The embodiment of the application also provides a terminal, which comprises a high-level management unit and a low-level management unit, wherein,

The low-level management unit is used for executing scanning operation after receiving the MLME-SCAN.request primitive; after scanning is completed, the detected BSS information is sent to a Gao Cengguan processing unit through an MLME-SCAN.confirm primitive, wherein the MLME-SCAN.confirm primitive comprises parameters BSSDescriptionSet, the BSSDescriptionSet comprises one or more BSSDescription information elements, when a local parameter dot11 EHTOptionImmunication indicates that the terminal supports EHT system capability or indicates that the terminal supports EHT system capability and enables, and the terminal reads EHT capabilities information in a beacon message or a probe response message of a scanned logical AP, the BSSDescription comprises EHT capabilities parameters, and the EHT capabilities parameters are used for indicating EHT system capability parameters of access equipment; when the local parameter dot11 ehtopperiod implemented indicates that the terminal supports EHT system capability or indicates that the terminal supports EHT system capability and enables the EHT system capability, and the terminal reads EHT operation information in a beacon message or a probe response message of the scanned logical AP, the BSSDescription includes an EHT operation parameter, where the EHT operation parameter is used to indicate an EHT system operation parameter of the access device.

The embodiment of the application also provides a terminal, which comprises a high-level management unit and a low-level management unit, wherein the terminal scans according to the wireless local area network scanning method related to the embodiment; wherein,,

The embodiment of the application also provides a terminal, 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 scanning and synchronizing the wireless local area network related to the embodiment.

The embodiment of the application also 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 realize the method for scanning and synchronizing the wireless local area network according to the 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 of wireless local area network scanning, comprising:

After the scanning of the low-level management unit is finished, the detected logic AP information is sent to a Gao Cengguan processing unit through an MLME-SCAN.confirm primitive, the MLME-SCAN.confirm primitive comprises a parameter BSSDescriptionSet, the BSSDescriptionSet comprises one or more BSSDescription information elements, when a local parameter dot11 EHTOptionrealized indicates that the terminal supports EHT system capability or indicates that the terminal supports EHT system capability and enables, and the terminal reads EHT capabilities information in a beacon message or a probe response message of the scanned logic AP, the BSSDescription comprises EHT capabilities parameters, and the EHT capabilities parameters are used for indicating EHT system capability parameters of access equipment; when the local parameter dot11EHTOptionimplemented indicates that the terminal supports the EHT system capability or indicates that the terminal supports the EHT system capability and enables the EHT system capability, and the terminal reads the EHT operation information in a beacon message or a probe response message of the scanned logical AP, the BSSDescription contains an EHT operation parameter, and the EHT operation parameter is used for indicating the EHT system operation parameter of the access equipment; when the local parameter dot11multilink operation implemented indicates that the terminal supports multilink operation capability or indicates that the terminal supports multilink operation capability and starts the operation, or when the local parameter dot11 ehtopperiod implemented indicates that the terminal supports EHT system capability or indicates that the terminal supports EHT system capability and enables, and the dot11multilink operation implemented indicates that the terminal supports multilink operation capability or indicates that the terminal supports multilink operation capability and starts the operation, and the terminal reads ML Elements information in a beacon message or a probe response message of a scanned logical AP, the BSSDescription further includes parameters ML Elements for indicating multilink parameters of an access device, the ML Elements include parameters MLD element and stanfo for indicating multilink common parameters of the access device, and the stanfo for indicating that the number of logical APs in the scanned logical AP is equal to or less than 1, and the number of logical APs in the actual AP is equal to or less than or equal to 1.

2. The method according to claim 1, wherein the EHT capabilities include parameters MAC capabilities and PHY capabilities, and the MAC capabilities include one or more of the following parameters:

the Triggered P2P support is used for indicating whether point-to-point data transmission Triggered by the access equipment is supported or not;

multilink support for indicating whether multilink operation is supported;

MultiAP support for indicating whether or not multi-point cooperation is supported;

1024bit BA bitmap support for indicating whether or not a maximum of 1024bit bitmap block feedback is supported;

STR support for indicating whether simultaneous independent transmission and reception are supported;

the PHY Capability includes one or more of the following parameters:

the EHT MU with 4×LTF+0.8 μs GI for indicating whether the EHU MU PPDU with 4×LTF and 0.8 μs guard interval are supported;

80MHzin 160/80+80MHz EHT PPDU, which is used to indicate whether or not to support the execution of Orthogonal Frequency Division Multiplexing Access (OFDMA) using 160MHz or 80MHz+80MHz resource units over 80MHz bandwidth;

80MHzin 320/160+160MHz EHT PPDU, which is used to indicate whether or not the use of 320MHz or 160MHz+160MHz resource elements on 80MHz bandwidth is supported for performing OFDMA;

80MHzin 240/160+80MHz EHT PPDU, which is used to indicate whether or not the use of 240MHz or 160MHz+80MHz resource elements on the 80MHz bandwidth is supported for performing OFDMA.

3. The method of claim 1, wherein the EHT operation includes one or more of the following parameters:

ChannelWidth field for indicating the channel bandwidth of operation;

CCFS field for indicating a channel center band;

basic EHT-MCS and NSS set, which is used for indicating the modulation coding strategy supported by the EHT system corresponding to the number of each group of space streams in the EHT PPDU transceiving;

align start time of PPDU for indicating whether to start transmitting PPDUs simultaneously on different links;

align end time of PPDU for indicating whether to end transmitting PPDUs simultaneously on different links.

4. The method of claim 1, wherein parameters related to multilink capability in ML Elements are included in the EHT capabilities parameter, and parameters related to multilink operation in ML Elements are included in the eh adaptation parameter.

5. The method of claim 1, wherein the parameters related to multilink Capability in ML Elements are included in the MAC capabilities of the EHT capabilities parameters, and wherein the parameters related to multilink operation in ML Elements are included in the eh tunneling parameters.

6. The method of claim 2, wherein the ML Elements are included in a MAC Capability of the EHT capabilities parameter, and wherein the ML Elements include the Multilink support.

7. A method of scanning for wireless local area networks according to claim 3, wherein said ML Elements comprise said Align start time of PPDU and Align end time of PPDU.

8. The method of claim 1, wherein the STA info i includes parameters Link ID, STA Capability and STA operation, the Link ID is used to indicate an identification of a Link operated by the logical AP, the STA Capability is used to indicate a Capability parameter specific to the logical AP, and the STA operation is used to indicate an operation parameter specific to the logical AP.

9. The method of wireless local area network scanning according to claim 1, further comprising:

after receiving the MLME-SCAN. Confirm primitive, the high-level management unit stores the BSSDescription information in the BSSDescription set parameter locally;

when the current signal quality is reduced or the current signal is lost or the current network is overloaded, the high-level management unit reads logic AP information matched with the network capacity in the locally stored BSSDescription according to the locally stored capacity parameter, takes logic APs capable of meeting the capacity of all terminals as candidate logic APs, measures the candidate logic APs, sorts the measured signals, selects the logic AP with the best signal quality to be compared with a preset connection threshold value T1, sends an MLME-JOIN request primitive to the low-level management unit if the logic AP with the best signal quality is higher than the connection threshold value T1, takes other logic APs as candidate logic APs, measures the logic APs, sorts the measured signals, selects the logic AP with the best signal quality to be compared with the preset connection threshold value T1, and sends the MLME-JOIN request primitive to the low-level management unit if the logic AP with the best signal quality is lower than the connection threshold value T1, and keeps the connection primitive if the logic AP with the best signal quality is lower than the current connection threshold value T1.

10. The method of claim 1, wherein the Gao Cengguan management unit is a device management unit SME or an application management unit AME, and the low-level management unit is a MAC layer management unit MLME or a physical layer management unit PLME.

11. A method for wireless local area network synchronization, comprising:

scanning according to the method of wireless local area network scanning of any of claims 1-10;

12. The method according to claim 11, wherein the STA-EHT Capabilities include parameters MAC Capabilities and PHY Capabilities, and the MAC Capabilities include one or more of the following parameters:

multilink support for indicating whether multilink operation is supported;

the PHY Capability includes one or more of the following parameters:

13. The method of claim 11, wherein said performing synchronization operations comprises:

if the parameter SelectedBSS in the MLME-join request primitive contains multiple logical APs and all the contained logical APs belong to the same access device, the access device is a multi-link access device, timing synchronization is performed with the logical AP specified in the received MLME-join request primitive, after the synchronization is completed, a parameter ResultCode is set to indicate that the synchronization is successful, if the SelectedBSS in the primitive contains multiple logical APs and all the contained logical APs belong to different access devices, and the parameter ResultCode is set to indicate that the terminal cannot fully support the operation parameters of the access device.

14. The method of claim 11, wherein said performing synchronization operations comprises:

if the lower layer management unit receives the parameter SelectdBSS in the MLME-JOIN. Request primitive, which contains the parameter Basic EHT-MCS and NSS set in which if any terminal unsupported < EHT-MCS, NSS > tuple is contained, the resultCode parameter value is set to an operating parameter indicating that the terminal cannot fully support the access device, or indicates a synchronization failure.

15. A terminal comprising a high-level management unit and a low-level management unit, characterized in that,

the low-level management unit is used for executing scanning operation after receiving the MLME-SCAN.request primitive; after scanning is completed, the detected logic AP information is sent to a Gao Cengguan processing unit through an MLME-SCAN. Confirm primitive, wherein the MLME-SCAN. Confirm primitive comprises a parameter BSSDescriptionSet, the BSSDescriptionSet comprises one or more BSSDescription information elements, when a local parameter dot11 EHTOptionImmunication indicates that the terminal supports EHT system capability or indicates that the terminal supports EHT system capability and enables, and the terminal reads EHT capabilities information in a beacon message or a probe response message of the scanned logic AP, the BSSDescription comprises EHT capabilities parameters, and the EHT capabilities parameters are used for indicating EHT system capability parameters of access equipment; when the local parameter dot11EHTOptionimplemented indicates that the terminal supports the EHT system capability or indicates that the terminal supports the EHT system capability and enables the EHT system capability, and the terminal reads the EHT operation information in a beacon message or a probe response message of the scanned logical AP, the EHT operation parameter is contained in the BSSDescription, and the EHT operation parameter is used for indicating the EHT system operation parameter of the access device; when the local parameter dot11MultilinkOptionImplemented indicates that the terminal supports the multilink operation capability or indicates that the terminal supports the multilink operation capability and starts the operation, or when the local parameter dot11EHTOptionImplemented indicates that the terminal supports the EHT system capability or indicates that the terminal supports the EHT system capability and enables, and the dot11MultilinkOptionImplemented indicates that the terminal supports the multilink operation capability or indicates that the terminal supports the multilink operation capability and starts the operation, and the terminal reads ML Elements information in a beacon message or a probe response message of the scanned logical AP, the BSSDescription further comprises parameters ML Elements for indicating multilink parameters of the access device, the ML Elements comprise parameters MLD element info and STAinfo i for indicating multilink public parameters of the access device, and the MLD element info is used for indicating that the number of the access device is equal to or less than or equal to 1, and the number of the specific logical APs is determined by the single AP in the actual logical AP.

16. A terminal comprising a high-level management unit and a low-level management unit, characterized in that the terminal scans according to the method of wireless local area network scanning according to any of claims 1-10;

17. A terminal comprising a processor and a memory, wherein the memory has stored therein at least one program code that is loaded and executed by the processor to implement the method of wireless local area network scanning of any of claims 1-10 or the method of wireless local area network synchronization of any of claims 11-14.

18. A storage medium having stored therein at least one program code loaded and executed by a processor to implement the method of wireless local area network scanning of any of claims 1-10 or the method of wireless local area network synchronization of any of claims 11-14.