WO2023005907A1 - 无线帧发送方法及装置、无线帧接收方法及装置 - Google Patents

无线帧发送方法及装置、无线帧接收方法及装置 Download PDF

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Publication number
WO2023005907A1
WO2023005907A1 PCT/CN2022/107850 CN2022107850W WO2023005907A1 WO 2023005907 A1 WO2023005907 A1 WO 2023005907A1 CN 2022107850 W CN2022107850 W CN 2022107850W WO 2023005907 A1 WO2023005907 A1 WO 2023005907A1
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Prior art keywords
field
neighbor
information
wireless frame
indicate
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PCT/CN2022/107850
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English (en)
French (fr)
Inventor
黄国刚
郭宇宸
李云波
淦明
李伊青
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华为技术有限公司
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Publication of WO2023005907A1 publication Critical patent/WO2023005907A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/06—Notations for structuring of protocol data, e.g. abstract syntax notation one [ASN.1]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

Definitions

  • the present application relates to the technical field of wireless local area networks (WLAN), in particular to a wireless frame sending method and device, and a wireless frame receiving method and device.
  • WLAN wireless local area networks
  • a station In the WLAN communication process, if a station (station, STA) wants to establish a connection with an access point (access point, AP), it can find the existence of the AP through scanning.
  • APs can carry a reduced Neighbor Report element (Reduced Neighbor Report element) in the management frame, which is used to carry the information of the AP’s neighbor APs.
  • the STA that receives the management frame can establish an association with the neighbor AP based on the information of the neighbor AP of the AP.
  • not all neighbors necessarily support association with STAs.
  • a neighbor is a soft AP (soft AP)
  • soft AP soft AP
  • the neighbor may not be able to support the association of STAs on the non-main link;
  • it may be necessary to disable or remove the neighbor for power reduction or other purposes, causing the neighbor to Association of STAs will no longer be supported.
  • Embodiments of the present application provide a wireless frame sending method and device, and a wireless frame receiving method and device, which are used to send the first wireless frame in the wireless frame when the sender of the wireless frame determines that the neighbor is not used to associate with the receiver of the wireless frame
  • the value of a field is set to the first value, so that the receiver of the wireless frame determines that the channel information in the information of the neighbor AP is invalid or has not been notified, so as to prevent the legacy STA in the receiver of the wireless frame from relying on the information of the neighbor AP
  • the channel information in try to detect and associate with the neighbor AP on the corresponding channel.
  • the first aspect of the embodiment of the present application provides a wireless frame sending method, which is applied to WLAN communication, and the method is executed by a WLAN device, or, the method is implemented by some components in the WLAN device (such as a processor, a chip, or a chip system, etc. )implement.
  • the WLAN device first generates a wireless frame, and the wireless frame includes a first information element, and the first information element includes a first field; wherein, the first information element is used to carry information about neighboring APs, and the first field It is used to indicate the channel information in the information of the neighbor AP, and when the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified; Thereafter, the WLAN device sends the wireless frame.
  • the first field when the value of the first field is the first value, the first field is used to indicate that the channel information in the neighbor AP information is invalid or not notified
  • This expression can also be expressed as when the value of the first field is the first value, the first field is used to indicate that the channel information in the neighbor AP information is invalid; it can also be expressed as that in the first field
  • the first field is used to indicate that the channel information in the neighbor AP information is not indicated; it can also be expressed as when the value of the first field is the first value, the first field A field is used to indicate that the channel information in the neighbor AP information does not support association; it can also be expressed that when the value of the first field is the first value, the first field is used to indicate that the neighbor AP information The channel information does not support access, etc.
  • the wireless frame sent by the WLAN device includes a first information element for carrying the information of the neighbor AP, and the first information element includes a first field for indicating the channel information in the information of the neighbor AP ; Wherein, when the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighboring AP is invalid or not notified.
  • the receiver of the wireless frame determines The channel information in the neighbor AP information is invalid or not notified, so as to prevent the legacy STA in the receiver of the wireless frame from trying to detect and associate with the neighbor AP on the corresponding channel according to the channel information in the neighbor AP information.
  • the second aspect of the embodiment of the present application provides a wireless frame receiving method, which is applied to WLAN communication, and the method is executed by a WLAN device, or, the method is implemented by some components in the WLAN device (such as a processor, a chip, or a chip system, etc. )implement.
  • a wireless frame is received, and the wireless frame includes a first information element, and the first information element includes a first field; wherein, the first information element is used to carry information of neighboring APs, and the first field is used to indicate The channel information in the information of the neighbor AP; thereafter, the WLAN device determines the channel information in the information of the neighbor AP according to the wireless frame, wherein, when the value of the first field is the first value, the first The field is used to indicate that the channel information in the information of the neighboring AP has not been notified.
  • the wireless frame received by the WLAN device includes a first information element used to carry the information of the neighbor AP, and the first information element includes a first field used to indicate the channel information in the information of the neighbor AP ; Wherein, when the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighboring AP has not been notified.
  • the receiver of the wireless frame determines The channel information in the neighbor AP information is not notified to prevent the legacy STA in the receiver of the wireless frame from trying to detect and associate with the neighbor AP on the corresponding channel according to the channel information in the neighbor AP information.
  • the non-legacy STA determines the value indicated by the wireless frame based on the way in which the value of the first field in the wireless frame is set to the first value.
  • the channel information in the neighbor AP information is not notified; in addition, the non-legacy STA can also obtain the channel information in the neighbor AP information based on other messages/information elements/fields, such as the high throughput operation element (HT Operation element) The Primary Channel field in .
  • HT Operation element high throughput operation element
  • the legacy STA When the wireless frame receiving method is applied to a legacy station (legacy STA), the legacy STA is set to the first value based on the value of the first field in the wireless frame, and the legacy STA interprets and obtains that the first value is a reserved value; Therefore, the legacy STA determines that the channel information in the neighbor AP information indicated by the wireless frame is invalid.
  • legacy STA When the wireless frame receiving method is applied to a legacy station (legacy STA), the legacy STA is set to the first value based on the value of the first field in the wireless frame, and the legacy STA interprets and obtains that the first value is a reserved value; Therefore, the legacy STA determines that the channel information in the neighbor AP information indicated by the wireless frame is invalid.
  • the third aspect of the embodiment of the present application provides a wireless frame sending device, which is applied to WLAN communication.
  • the device can be executed by a WLAN device, or the device can be a part of the WLAN device (such as a processor, a chip, or a chip system, etc.) to execute.
  • the processing unit in the device is used to generate a wireless frame, and the wireless frame includes a first information element, and the first information element includes a first field; wherein, the first information element is used to carry information about neighboring APs, and the first field It is used to indicate the channel information in the information of the neighbor AP, and when the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified;
  • the transceiver unit in the device is used to send the wireless frame.
  • the wireless frame sent by the transceiver unit includes a first information element for carrying the information of the neighbor AP, and the first information element includes a first field for indicating the channel information in the information of the neighbor AP ; Wherein, when the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighboring AP is invalid or not notified.
  • the receiver of the wireless frame determines The channel information in the neighbor AP information is invalid or not notified, so as to prevent the legacy STA in the receiver of the wireless frame from trying to detect and associate with the neighbor on the corresponding channel according to the channel information in the neighbor AP information.
  • the fourth aspect of the embodiment of the present application provides a wireless frame receiving apparatus, which is applied to WLAN communication.
  • the apparatus can be executed by WLAN equipment, or the apparatus can be some components (such as processors, chips, or chips) in WLAN equipment. system, etc.) to execute.
  • the transceiver unit in the device is used to receive a wireless frame, and the wireless frame includes a first information element, and the first information element includes a first field; wherein, the first information element is used to carry information of neighboring APs, and the first field It is used to indicate the channel information in the information of the neighbor AP; the processing unit in the device is used to determine the channel information in the information of the neighbor AP according to the wireless frame, wherein the value in the first field is the first value When the value is , the first field is used to indicate that the channel information in the neighbor AP information is invalid or not notified.
  • the wireless frame received by the transceiver unit includes a first information element for carrying the information of the neighbor AP, and the first information element includes a first field for indicating the channel information in the information of the neighbor AP ; Wherein, when the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighboring AP is invalid or not notified.
  • the receiver of the wireless frame determines The channel information in the neighbor AP information is invalid or not notified, so as to prevent the Legacy STA in the receiver of the wireless frame from trying to detect and associate with the neighbor on the corresponding channel based on the channel information in the neighbor AP information.
  • the first field is used to indicate a channel number corresponding to the channel information.
  • the first field used to indicate the channel information in the neighbor AP information can specifically indicate the channel number corresponding to the channel information, so that the receiver of the wireless frame can determine that the channel information in the neighbor AP information
  • the channel number corresponding to the channel information of the wireless frame is invalid or not notified, so as to prevent the Legacy STA in the receiver of the wireless frame from trying to detect and associate with the neighbor on the corresponding channel according to the channel number corresponding to the channel information in the information of the neighbor AP .
  • the first field includes a channel number (Channel Number) field.
  • the first field is used to indicate the operation category to which the channel information belongs.
  • the first field used to indicate the channel information in the neighbor AP information can specifically indicate the operation category to which the channel information belongs, so that the receiver of the wireless frame can determine the channel information in the neighbor AP information.
  • the operation category to which the channel information belongs is invalid or not notified, so as to prevent the receiver Legacy STA of the wireless frame from trying to detect and associate with the neighbor on the corresponding channel according to the operation category of the channel information in the information of the neighbor AP.
  • the first field includes an Operating Class field.
  • the first field when the value of the first field is the first value, the first field is also used to indicate the removal of The neighbor AP; or, when the value of the first field is the first value, the first field is also used to indicate that the neighbor AP is deactivated.
  • the neighbor in the scenario where the neighbor is an AP on a link in a multi-link device, it may be necessary to disable or remove the AP in order to reduce power consumption or for other purposes. Neighbor, the neighbor will no longer support STA association. Therefore, in the wireless frame, when the value of the first field used to indicate the channel information in the information of the neighbor AP is the first value, except that the channel information in the information used to indicate the neighbor AP is invalid or not notified , may also indicate the status information of the neighbor, for example, indicate (to) remove the neighbor or indicate (to) deactivate the neighbor AP. In order to make the receiver of the wireless frame know that the neighbor is an unassociated neighbor.
  • the wireless frame further includes a target field, and when the value of the target field is the second value, the target field uses When indicating to remove the neighbor AP; or, when the value of the target field is the second value, the target field is used to indicate to disable the neighbor AP.
  • the neighbor in the scenario where the neighbor is an AP on a link in a multi-link device, it may be necessary to disable or remove the AP in order to reduce power consumption or for other purposes.
  • the neighbor AP will no longer support the association of STAs. Therefore, in the wireless frame, a target field is also included, and when the value of the target field is the second value, it indicates the status information of the neighbor, for example, indicating (to) remove the neighbor or indicating (to) deactivate the neighbor AP .
  • the receiver of the wireless frame In order to make the receiver of the wireless frame know that the neighbor is an unassociated neighbor.
  • the target field includes at least one of the following: the reserved (Reserved) field in the target beacon transmission times information header (target beacon transmission times information header, TBTT info Header) field, the target beacon transmission time information field Type (target beacon transmission times information field type, TBTT info Field Type) field, etc.
  • the target field includes the reserved (Reserved) field in the TBTT info Header field
  • the first value is 0 or 1
  • the target field includes the TBTT info Field Type field
  • the first value is 1 or 2 or 3.
  • the first information element is used to indicate the neighbor AP corresponding to the non-main link of the soft AP MLD (soft AP MLD) Information.
  • the first information element further includes a second field, and the second field includes a first subfield and a second subfield ;
  • the second field is used to indicate the basic service set parameters corresponding to the neighbor; and, the first subfield contained in the second field is used to indicate whether the basic service set is expected to be transparently transmitted through the channel (on-channel tunneling, OCT ) mechanism to exchange management-type media access control protocol data units (medium access control protocol data unit, MAC PDU, MPDU for short) with the neighbor, and the channel information in the first field is used to indicate that the neighbor AP information is invalid
  • the first subfield is used to indicate that the basic service set expects to exchange management-type media access control protocol data units (MPDUs) with the neighbor through the OCT mechanism; and the second subfield included in the second field is used When indicating whether the neighbor enables the proactive probe response, and when the first field is used to indicate that the channel information
  • the first information element used to carry the information of the neighbor AP also includes A second field used to indicate the BSS parameters corresponding to the neighbor, where the second field further includes a first subfield and a second subfield.
  • the first field is used to indicate that the channel information in the neighbor AP information is invalid or not notified
  • the first subfield is used to indicate that the basic service set expects to exchange management type MPDUs with the neighbor through the OCT mechanism
  • the second subfield is used to indicate that the neighbor does not enable active probe response. Therefore, by setting the first subfield and the second subfield in the second field, it is possible to further prevent the receiver of the wireless frame from associating with the neighbor according to the basic service set parameters corresponding to the neighbor.
  • the second field is a basic service set parameter (basic service set parameter, BSS Parameter) field
  • the first subfield is OCT recommended field
  • the second subfield is the Unsolicited Probe Response Active subfield.
  • the first information element further includes a third field, and the third field is used to indicate the basic service set corresponding to the neighbor.
  • the offset information of the beacon frame transmission time and when the first field is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified, the third field is used to indicate the information of the basic service set corresponding to the neighbor
  • the offset information of the frame sending time is unknown information.
  • the first information element used to carry the information of the neighbor AP also includes The third field is used to indicate the offset information of the sending time of the beacon frame of the basic service set corresponding to the neighbor.
  • the third field is used to indicate the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor is unknown information. Therefore, by setting the third field, it is possible to further prevent the receiver of the wireless frame from associating with the neighbor according to the bias information.
  • the first information element is a reduced neighbor report element (Reduced Neighbor Report element).
  • the wireless frame is a management frame.
  • the wireless frame includes a beacon (Beacon) frame, a probe request (Probe Request) frame, a probe response (Probe Response) frame, an association request (Association Request) frame, a reassociation request (Reassociation Request) frame, a disassociation One or more of (Disassociation) frame, deauthentication (Dauthentication) frame, identity authentication (Authentication) frame, etc.
  • the fifth aspect of the embodiment of the present application provides a wireless frame sending method, which is applied to WLAN communication, and the method is executed by a WLAN device, or, the method is implemented by some components in the WLAN device (such as a processor, a chip, or a chip system, etc. )implement.
  • the WLAN device first generates a wireless frame, and the wireless frame includes a first information element, and the first information element includes a target field; wherein, the first information element is used to carry the information of the neighbor AP, and the target field takes When the value is the first value, the target field is used to indicate to remove or deactivate the neighbor AP; after that, the WLAN device sends the wireless frame.
  • the wireless frame sent by the WLAN device includes a first information element used to carry information about neighboring APs, and the first information element includes a target field; where the value of the target field is the first value When the value is set, the target field is used to indicate to remove or deactivate the neighbor AP. Therefore, when the sender of the wireless frame determines that the neighbor is not used to associate with the receiver of the wireless frame, by setting the value of the target field in the wireless frame to the first value, the receiver of the wireless frame determines the The neighbor AP is (soon to be) removed or (soon to be) deactivated, preventing the receiver of the wireless frame from attempting to associate with the neighbor according to the channel information in the information of the neighbor AP.
  • the sixth aspect of the embodiment of the present application provides a wireless frame receiving method, which is applied to WLAN communication, and the method is executed by a WLAN device, or, the method is implemented by some components in the WLAN device (such as a processor, a chip, or a chip system, etc. )implement.
  • the WLAN device receives a wireless frame, and the wireless frame includes a first information element, and the first information element includes a target field; wherein, the first information element is used to carry information of neighbor APs; thereafter, the WLAN device according to The wireless frame determines the channel information in the information of the neighbor AP, wherein, when the value of the target field is the first value, the target field is used to indicate removal or deactivation of the neighbor AP.
  • the wireless frame received by the WLAN device includes a first information element for carrying information about neighboring APs, and the first information element includes a target field; wherein, the value of the target field is the first value When the value is set, the target field is used to indicate to remove or deactivate the neighbor AP. Therefore, when the sender of the wireless frame determines that the neighbor is not used to associate with the receiver of the wireless frame, by setting the value of the target field in the wireless frame to the first value, the receiver of the wireless frame determines the The neighbor AP is (soon to be) removed or (soon to be) deactivated, preventing the receiver of the wireless frame from attempting to associate with the neighbor according to the channel information in the information of the neighbor AP.
  • the non-legacy STA determines that the neighboring AP (to be) be removed or (to be) disabled; when the radio frame receiving method is applied to a legacy station (legacy STA), based on the way the value of the target field in the radio frame is set to the first value, the legacy STA interprets this The first value is a reserved value; therefore, the legacy STA determines that the target field is an invalid field.
  • the seventh aspect of the embodiment of the present application provides a wireless frame sending device, which is applied to WLAN communication.
  • the device is a WLAN device, or the device is a part of the WLAN device (such as a processor, a chip, or a chip system, etc.) .
  • the device includes a processing unit and a transceiver unit.
  • the processing unit generates a wireless frame, and the wireless frame includes a first information element, and the first information element includes a target field; wherein, the first information element is used to carry information about neighboring APs, When the value of the target field is the first value, the target field is used to indicate removal or deactivation of the neighbor AP; thereafter, the transceiver unit sends the wireless frame.
  • the wireless frame sent by the transceiver unit includes a first information element for carrying information about neighboring APs, and the first information element includes a target field; wherein, the value of the target field is the first value When the value is set, the target field is used to indicate to remove or deactivate the neighbor AP. Therefore, when the sender of the wireless frame determines that the neighbor is not used to associate with the receiver of the wireless frame, by setting the value of the target field in the wireless frame to the first value, the receiver of the wireless frame determines the The neighbor AP is (soon to be) removed or (soon to be) deactivated, preventing the receiver of the wireless frame from attempting to associate with the neighbor according to the channel information in the information of the neighbor AP.
  • the eighth aspect of the embodiment of the present application provides a wireless frame receiving device, which is applied to WLAN communication.
  • the device is a WLAN device, or the device is a part of the WLAN device (such as a processor, a chip, or a chip system, etc.) .
  • the device includes a processing unit and a transceiver unit.
  • the transceiver unit receives a wireless frame, and the wireless frame includes a first information element, and the first information element includes a target field; wherein, the first information element is used to carry information about neighbor APs ; Thereafter, the processing unit determines the channel information in the neighbor AP information according to the wireless frame, wherein, when the value of the target field is the first value, the target field is used to indicate removal or deactivation of the neighbor AP.
  • the wireless frame received by the transceiver unit includes a first information element for carrying information about neighboring APs, and the first information element includes a target field; wherein, the value of the target field is the first value When the value is set, the target field is used to indicate to remove or deactivate the neighbor AP. Therefore, when the sender of the wireless frame determines that the neighbor is not used to associate with the receiver of the wireless frame, by setting the value of the target field in the wireless frame to the first value, the receiver of the wireless frame determines the The neighbor AP is (soon to be) removed or (soon to be) deactivated, preventing the receiver of the wireless frame from attempting to associate with the neighbor according to the channel information in the information of the neighbor AP.
  • the target field includes at least one of the following:
  • Channel Number Channel Number (Channel Number) field
  • Target beacon transmission times information field type (target beacon transmission times information field type, TBTT info Field Type) field.
  • the target field can be implemented in the above multiple ways, wherein the first value is a reserved value of any of the above fields. Therefore, when the wireless frame receiving method is applied to a non-traditional station (legacy STA), the non-legacy STA determines that the neighbor AP is (about to be) removed based on the way in which the value of the target field in the wireless frame is set to the first value Or (to be) disabled; when the radio frame receiving method is applied to a legacy station (legacy STA), the legacy STA is based on the way in which the value of the target field in the radio frame is set to the first value, and the legacy STA interprets the first value A value is reserved; therefore, the legacy STA determines that the target field is an invalid field.
  • legacy STA legacy station
  • the target field when the target field includes a channel number (Channel Number) field, the first value is 0; when the target field includes an operating class (Operating Class) field, the first value is 0 or 255; when the When the target field includes the reserved (Reserved) field in the TBTT info Header field, the first value is 0 or 1; when the target field includes the TBTT info Field Type field, the first value is 1 or 2 or 3.
  • Channel Number Channel Number
  • the target field when the target field includes an operating class (Operating Class) field, the first value is 0 or 255; when the When the target field includes the reserved (Reserved) field in the TBTT info Header field, the first value is 0 or 1; when the target field includes the TBTT info Field Type field, the first value is 1 or 2 or 3.
  • the first information element further includes a second field, and the second field includes a first subfield and a second subfield ;
  • the second field is used to indicate the basic service set parameters corresponding to the neighbor; and, the first subfield contained in the second field is used to indicate whether the basic service set is expected to be transparently transmitted through the channel (on-channel tunneling, OCT ) mechanism to exchange management-type media access control protocol data unit (medium access control protocol data unit, MAC PDU, MPDU for short) with the neighbor, and the target field is used to indicate removal of the neighbor AP or deactivation of the neighbor AP
  • the first subfield is used to indicate that the basic service set expects to exchange management-type media access control protocol data units (MPDUs) with the neighbor through the OCT mechanism; and the second subfield contained in the second field is used to indicate the Whether the neighbor enables the active probe response, and when the target field is used to indicate removal of
  • MPDUs management-type media access control protocol data units
  • the first information element used to carry the information of the neighbor AP also includes A second field used to indicate the BSS parameters corresponding to the neighbor, where the second field further includes a first subfield and a second subfield.
  • the target field is used to indicate removal of the neighbor AP or deactivation of the neighbor AP
  • the first subfield is used to indicate that the basic service set expects to exchange management-type MPDUs with the neighbor through the OCT mechanism
  • the second The subfield is used to indicate that the neighbor does not enable active probe response. Therefore, by setting the first subfield and the second subfield in the second field, it is possible to further prevent the receiver of the wireless frame from associating with the neighbor according to the basic service set parameters corresponding to the neighbor.
  • the second field is a basic service set parameter (BSS Parameter) field
  • the first subfield is OCT recommended field
  • the second subfield is the Unsolicited Probe Response Active subfield.
  • the first information element further includes a third field, and the third field is used to indicate the basic service set corresponding to the neighbor.
  • the offset information of the beacon frame transmission time and when the target field is used to indicate the removal of the neighbor AP or the deactivation of the neighbor AP, the third field is used to indicate the beacon frame transmission of the basic service set corresponding to the neighbor
  • the time offset information is unknown information.
  • the first information element used to carry the information of the neighboring AP also includes a third field used to indicate the offset information of the sending time of the beacon frame of the basic service set corresponding to the neighbor.
  • the third field is used to indicate that the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor is unknown information. Therefore, by setting the third field, it is possible to further prevent the receiver of the wireless frame from associating with the neighbor according to the bias information.
  • the first information element is a reduced neighbor report element (Reduced Neighbor Report element).
  • the radio frame is a management frame.
  • the wireless frame includes a beacon (Beacon) frame, a probe request (Probe Request) frame, a probe response (Probe Response) frame, an association request (Association Request) frame, a reassociation request (Reassociation Request) frame, a disassociation One or more of (Disassociation) frame, deauthentication (Dauthentication) frame, identity authentication (Authentication) frame, etc.
  • the ninth aspect of the embodiment of the present application provides a communication device, including at least one processor, the at least one processor is coupled to a memory; the memory is used to store programs or instructions; the at least one processor is used to execute the programs or instructions, A method for enabling the device to implement the aforementioned first aspect or any possible implementation of the first aspect, or a method for enabling the device to implement the aforementioned second aspect or any of the possible implementations of the second aspect, or, A method for enabling the device to implement the fifth aspect or any possible implementation manner of the fifth aspect, or a method for enabling the device to implement the sixth aspect or any possible implementation manner for the sixth aspect.
  • the tenth aspect of the embodiment of the present application provides a computer-readable storage medium that stores one or more computer-executable instructions.
  • the processor executes any one of the above-mentioned first aspect or the first aspect.
  • a method in one possible implementation manner or, the processor executes the method in the second aspect or any one of the possible implementation manners in the second aspect, or, the processor executes the method in the fifth aspect or in any one of the fifth aspects alternatively, the processor executes the sixth aspect or the method in any one possible implementation manner of the sixth aspect.
  • the eleventh aspect of the embodiment of the present application provides a computer program product (or computer program) storing one or more computers.
  • the processor executes the above-mentioned first aspect or the first aspect.
  • the method in any possible implementation manner, or, the processor executes the method in the second aspect or any possible implementation manner in the second aspect, or, the processor executes the method in the fifth aspect or the fifth aspect.
  • the twelfth aspect of the embodiment of the present application provides a chip system, the chip system includes at least one processor, configured to support the communication device to implement the functions involved in the above-mentioned first aspect or any possible implementation of the first aspect ; or, used to support the communication device to realize the functions involved in the second aspect or any possible implementation of the second aspect or, used to support the communication device to realize the fifth aspect or any possible implementation of the fifth aspect
  • the chip system may further include a memory for storing necessary program instructions and data of the communication device.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the chip system further includes an interface circuit, and the interface circuit provides program instructions and/or data for the at least one processor.
  • the thirteenth aspect of the embodiment of the present application provides a communication system, the communication system includes the communication device of the third aspect and the communication device of the fourth aspect, and/or, the communication system includes the communication device of the seventh aspect and The communication device of the eighth aspect, and/or, the communication system includes the communication device of the ninth aspect above.
  • the technical effects brought about by any one of the design methods in the ninth aspect to the thirteenth aspect can refer to the technical effects brought about by the different implementation methods in the above-mentioned first aspect to the eighth aspect, and will not be repeated here.
  • the wireless frame sent and received by the WLAN device includes a first information element used to carry information about neighboring APs, and the first information element includes an element used to indicate channel information in the information about the neighboring AP.
  • the first field wherein, when the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified (or in the value of the first field When the value is the first value, the first field is used to indicate to remove the neighbor AP or deactivate the neighbor AP).
  • the receiver of the wireless frame determines The channel information in the neighbor AP information is invalid or not notified (or the neighbor AP is determined to be removed or the neighbor AP is deactivated), so as to prevent the legacy STA in the receiver of the wireless frame from relying on the channel information in the neighbor AP information. Attempt to detect and associate with the neighbor AP on the corresponding channel.
  • Fig. 1 is a schematic diagram of the communication system of the embodiment of the present application.
  • FIG. 2 is another schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a wireless frame provided by an embodiment of the present application.
  • FIG. 4 is another schematic diagram of a wireless frame provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a wireless frame provided by an embodiment of the present application.
  • FIG. 6 is another schematic diagram of a wireless frame provided by an embodiment of the present application.
  • FIG. 7a is a schematic diagram of a communication method provided by an embodiment of the present application.
  • Fig. 7b is a schematic diagram of the communication method provided by the embodiment of the present application.
  • FIG. 8 is a schematic diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is another schematic diagram of a communication device provided by an embodiment of the present application.
  • plural means two or more than two.
  • At least one of the following or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • at least one item (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .
  • words such as “first” and “second” are used to distinguish the same or similar items with basically the same function and effect. Those skilled in the art can understand that words such as “first” and “second” do not limit the number and execution order, and words such as “first” and “second” do not necessarily limit the difference.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations or descriptions. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as “exemplary” or “such as” is intended to present relevant concepts in a concrete manner for easy understanding.
  • system architecture of the method provided in the embodiment of the present application will be described below. It can be understood that the system architecture described in the embodiments of the present application is for more clearly illustrating the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the technical solution provided by this application can be applied to WLAN scenarios, for example, it can be applied to IEEE 802.11 system standards, such as 802.11a/b/g standard, 802.11n standard, 802.11ac standard, 802.11ax standard, or its next generation, such as 802.11be Standard or next-generation standard.
  • IEEE 802.11 system standards such as 802.11a/b/g standard, 802.11n standard, 802.11ac standard, 802.11ax standard, or its next generation, such as 802.11be Standard or next-generation standard.
  • the embodiment of the present application mainly takes the deployment of a WLAN network, especially a network using the IEEE 802.11 system standard as an example for illustration, those skilled in the art can easily understand that various aspects involved in this application can be extended to other networks using various standards or protocols , for example, BLUETOOTH (Bluetooth), high performance wireless LAN (high performance radio LAN, HIPERLAN) (a wireless standard similar to the IEEE 802.11 standard, mainly used in Europe), and wide area network (WAN), personal area network (personal area network) network, PAN) or other networks that are now known or developed in the future.
  • BLUETOOTH Bluetooth
  • high performance wireless LAN high performance radio LAN, HIPERLAN
  • WAN wide area network
  • PAN personal area network
  • the various aspects presented herein can be applied to any suitable wireless network, regardless of the coverage area and wireless access protocol used.
  • the embodiments of the present application may also be applicable to wireless local area network systems such as Internet of Things (Internet of Things, IoT) networks or Internet of Vehicles (Vehicle to X, V2X).
  • IoT Internet of Things
  • Vehicle to X V2X
  • the embodiment of the present application can also be applicable to other possible communication systems, for example, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division) duplex, TDD), universal mobile telecommunication system (universal mobile telecommunication system, UMTS), global interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, fifth generation (5th generation, 5G) communication system, and future The sixth generation (6th generation, 6G) communication system, etc.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • TDD time division duplex
  • TDD time division duplex
  • UMTS
  • the wireless frame sending method and device provided in the embodiments of the present application, as well as the wireless frame receiving method and device can be applied to a wireless communication system, and the wireless communication system can be a wireless local area network (wireless local area network, WLAN) or a cellular network.
  • the method It may be implemented by a communication device in a wireless communication system or a chip or a processor in a communication device, and the communication device may be a wireless communication device that supports multiple links for parallel transmission, for example, a multi-link device (multi-link device) -link device, MLD) or multi-band device (multi-band device). Compared with devices that only support single-link transmission, multi-link devices have higher transmission efficiency and higher throughput.
  • FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • the communication device (wireless frame sending device or wireless frame receiving device) involved in the present application is described as an example of a multi-link device; and in some embodiments, The communication device (wireless frame sending device or wireless frame receiving device) involved in the present application may also be a single-link device, and what is shown in FIG. 1 is only an example, and should not be construed as a limitation to the present application.
  • the communication system mainly includes at least one multi-link access point device (Multi-link AP device) and at least one multi-link non-AP station device (Multi-link non-AP STA device) (referred to as a multi-link site device for short), wherein the multi-link access point device and the multi-link site device may be collectively referred to as a multi-link device.
  • Multi-link AP device multi-link access point device
  • Multi-link non-AP STA device multi-link non-AP station device
  • the multi-link device will be introduced below.
  • a multi-link device includes one or more affiliated stations (affiliated stations, denoted as affiliated STAs).
  • An affiliated STA is a logical station that can work on one link.
  • the affiliated station may be an access point (access point, AP) or a non-access point station (non-access point station, non-AP STA).
  • the multi-link device whose affiliated station is an AP can be called a multi-link AP or a multi-link AP device (multi-link AP device) or an AP multi-link device (AP multi-link device).
  • the affiliated station is a non-AP STA multi-link device (multi-link non-AP STA device) can be called a multi-link STA or multi-link STA device or STA multi-link device (STA multi-link device) .
  • the multi-link device includes the subordinate STA is also briefly described as “the multi-link device includes the STA” in the embodiment of the present application.
  • a multi-link device includes multiple logical sites, and each logical site works on one link, but allows multiple logical sites to work on the same link.
  • the link identifier mentioned below represents a station working on a link, that is, if there is more than one station on a link, more than one link identifier is required to represent them.
  • the link mentioned below sometimes also means the station working on the link.
  • a link identifier can be used to identify a link or a station on a link.
  • the multi-link AP device and the multi-link STA device may first negotiate or communicate the correspondence between the link identifier and a link or a station on a link. Therefore, in data transmission, there is no need to transmit a large amount of signaling information to indicate a link or a site on the link, just carry the link identifier, which reduces signaling overhead and improves transmission efficiency.
  • each link identification information field includes a link identification, and also includes: one or more of a medium access control (medium access control, MAC) address, an operation set, and a channel number, wherein the MAC address, the operation set, and the channel number are One or more of may indicate a link; in another example, in the multi-link establishment association process, the multi-link AP device and the multi-link site device negotiate multiple link identification information fields.
  • medium access control medium access control
  • the multi-link AP device or the multi-link station device will use the link identifier to represent a station in the multi-link device.
  • the link identifier can also represent the MAC address of the station, and the working operation set , one or more attributes in the channel number.
  • the MAC address may also be replaced with an association identifier of the associated multi-link AP device.
  • the link identifier (a digital ID)
  • the meaning of representation includes not only the operation set where the link is located, the channel number, but also the station identifier working on the link , such as the MAC address or AID of the site.
  • Multi-link devices can follow 802.11 series protocols to realize wireless communication, for example, follow extremely high throughput (extremely high throughput, EHT) sites, or follow 802.11be-based or compatible 802.11be-supported sites to achieve communication with other devices, of course Other devices may or may not be multilink devices.
  • EHT extremely high throughput
  • 802.11be-based or compatible 802.11be-supported sites to achieve communication with other devices, of course
  • Other devices may or may not be multilink devices.
  • the non-AP MLD involved in this application can be a wireless communication chip, a wireless sensor or a wireless communication terminal.
  • user terminals user devices, access devices, subscriber stations, subscriber units, mobile stations, user agents, and user equipment supporting Wi-Fi communication functions, among which, user terminals may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, internet of things (IoT) devices, computing devices or other processing devices connected to a wireless modem, and various forms of user equipment (UE), mobile station (mobile station, MS ), terminal, terminal equipment, portable communication device, handset, portable computing device, entertainment device, gaming device or system, GPS device or any other device configured for network communication via a wireless medium suitable equipment etc.
  • IoT internet of things
  • non-AP MLD can support the 802.11be standard or the next-generation WLAN standard of 802.11be.
  • Non-AP MLD can also support multiple WLAN standards such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
  • the AP MLD involved in the embodiment of this application can be a device that is deployed in a wireless communication network to provide wireless communication functions for its associated non-AP, and is mainly deployed in homes, buildings, and campuses, with a typical coverage radius of tens of meters. Of course, it can also be deployed outdoors.
  • AP MLD is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet.
  • the AP MLD can be a base station with a Wi-Fi chip, a router, a gateway, a repeater, a communication server, a switch or a network bridge and other communication equipment, wherein the base station can include various forms of macro base stations, micro base stations , relay station, etc.
  • the AP MLD can support the 802.11be standard or the next-generation WLAN standard of 802.11be.
  • AP MLD can also support WLAN standards such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a.
  • the WLAN can work at low frequency frequencies including sub-bands of 1 gigahertz (GHz), 2.4 GHz, 5 GHz, and 6 GHz.
  • 802.11ax (WiFi 6) and previous multi-band WiFi are configured with multiple links, generally speaking, each multi-link establishes a different basic service set (BSS), and only one link can be used at a time.
  • the road communicates with the station in the BSS to which the link belongs, and the operation of each link lacks sufficient cooperation.
  • multi-link cooperation technology can also be used to aggregate discontinuous multi-links to form ultra-large bandwidth.
  • the multi-link cooperation technology can also share the MAC layer on multiple links to realize flexible transmission of message packets, or send message packets of the same service to the same site at the same time.
  • a device capable of implementing the multi-link cooperation technology is referred to as a multi-link device below.
  • AP multi-link devices and station multi-link devices can establish associations on one link, so as to quickly realize the establishment of associations on multiple links.
  • non-AP MLD For non-AP MLD, it can establish association with multiple links of AP MLD by performing multi-link establishment operation on one of the links (link).
  • link the link that performs multi-link association request/response (Multi-link Association Request/Response) frame exchange is called a transmission link (Transmitted Link), and the corresponding other links are called non-transmitted links (Non-transmitted Link). Link).
  • Multi-link Association Request/Response For the Multi-link Association Request/Response frame, it will carry the information of multiple links to realize the association of multiple links at the same time.
  • Step 1 The non-AP MLD sends an Association Request frame on Link 1 (Link 1), which not only carries Link 1 STA side information, but also carries Link 2 (Link 2) STA side related information. Among them, Link 1 is called Transmitted Link, and link 2 is called Non-transmitted Link.
  • Link 1 is called Transmitted Link
  • Link 2 is called Non-transmitted Link.
  • Step 2 AP MLD returns an Association Response frame on Link 1 to Non-AP MLD, which not only carries the STA side information of Link 1, but also carries the AP side related information of Link 2.
  • STA 1 and STA 2 of the Non-AP are respectively associated with AP 1 and AP 2 of the AP MLD.
  • the multi-link element (multi-link element, MLE) is defined in the protocol, which adopts the inheritance model format to carry the related information of MLD, similar to the existing Multi-BSSID element in the protocol.
  • a multi-link device can also refer to the device having multiple radio frequency modules at the same time, working on different frequency bands/channels respectively.
  • MLD Multi-link Device
  • the channel distance between two radio frequency modules in a device is large enough, they can operate independently without interfering with each other. If any two links support sending on one link while the other link is receiving, we call it the ability to support simultaneous transmit/receive (STR) between the two links. Otherwise, it is called non-simultaneous transmission and reception (Non-STR, NSTR) between the two links.
  • STR simultaneous transmit/receive
  • NSTR non-simultaneous transmission and reception
  • the AP MLD In addition to each AP MLD having its own medium access control address (MAC Address) for each link, the AP MLD also has a medium access control service access point address (medium access control service access point address, MAC SAP Address), as shown in Figure 2.
  • MAC Address medium access control service access point address
  • Soft AP MLD can be understood as the use of software to realize the function of AP MLD on non-AP MLD equipment. A common scenario is to set terminals such as mobile phones and tablets as a Soft AP MLD to allow other devices to associate.
  • multi-link access point devices and multi-link site devices can also communicate through various wireless frames, such as association request frames, re-association request frames, association response frames, Reassociation response frames, probe response frames, etc., where different wireless frames may carry MLEs, and are used to carry site information of multi-link devices through MLEs.
  • the MLE may also be referred to as a multi-link information element.
  • the MLE includes an element identification (Element ID) field (for example, the value can be 255 as shown in Figure 3), a length value (Length) field, an element identification extension (Element ID Extension) field, a multi-link control (Multi-link Link Control) field, common information (Common Info) field and link information (Link Info) field.
  • element ID element identification
  • Length length value
  • Element ID Extension element identification extension
  • Multi-link Link Control multi-link control
  • Common Info Common information
  • Link Info link information
  • the Common Info field carries the common information of multiple sites in the multi-link device, as well as the information of the multi-link device itself;
  • the Link Info field carries the information of the sites on each link in the multi-link device;
  • the Control field carries the type of the multi-link element, and indication information of which fields are present and which fields are not present in the Common Info.
  • the Link Info field can also include one or more each-site introduction (Per-STA Profile) fields, in Figure 3, the number of Per-STA Profile fields is x (x is greater than 1) as an example.
  • each Per-STA Profile field can also further include a subelement identification (Subelement ID) field (for example, the value can be 0 as shown in Figure 3), a length value (Length) field, and a data (Data) field.
  • Subelement ID subelement identification
  • Length Length
  • Data data
  • the Data field may also include a site control (STA Control) field, a site information (STA Info) field, and a site profile (STA Profile) field.
  • STA Control site control
  • STA Info site information
  • STA Profile site profile
  • the STA Profile field includes a plurality of fields or domains (field), and in Figure 3 the number of fields is m (x is greater than 1) as an example; the STA Profile field also includes a plurality of elements (Element), In Figure 3, the number of Elements is n (n is greater than 1) as an example. In addition, the STA Profile field also includes a possible (if present) non-inheritance element (Non-inheritance element).
  • Passive scanning is a management frame sent by the AP on the receiving channel, such as a beacon frame or a broadcast probe response frame.
  • the STA searches for beacon (Beacon) frames sent by the AP by jumping on different channels. Once the STA obtains the relevant information of the AP through the Beacon frame, it can further obtain other additional information from the AP through the exchange of Probe Request/Response (Probe Request/Response) frames.
  • Beacon beacon
  • Probe Request/Response Probe Request/Response
  • Active scanning means that the STA can actively send a broadcast probe request without listening to the Beacon frame, and the AP that receives the broadcast probe request can initiate a random channel access round-trip probe response if certain conditions are met.
  • the AP will carry the Reduced Neighbor Report element (Reduced Neighbor Report element) in its Beacon frame and Probe response frame to prevent the STA from constantly scanning the channel and reduce the STA's scanning time.
  • Reduced Neighbor Report element Reduced Neighbor Report element
  • the AP carries simplified neighbor report elements in management frames, such as beacon frames and probe response frames.
  • management frames such as beacon frames and probe response frames.
  • the STA station scans, it receives the association frame sent by the AP to obtain the information of the surrounding APs, and then selects a suitable AP for association.
  • the neighbor APs may specifically be the APs around the AP (herein marked as the target AP) that sends the Reduced Neighbor Report element (Reduced Neighbor Report element).
  • the neighbor AP is the AP on other links in the AP MLD where the target AP is located; for another example, the neighbor AP is the adjacent APs of the target AP; for another example, the neighbor AP is the one detected in the working area of the target AP Other APs; for another example, the neighbor AP is an AP that is co-located with the target AP; for another example, the neighbor AP is another affiliated AP that belongs to the same AP MLD as the current affiliated AP; or other definitions, this There is no specific limitation.
  • the Reduced Neighbor Report element (Reduced Neighbor Report element) is used to indicate the information of one or more neighboring APs on a certain channel. Its frame format is shown in Figure 4, including the element identifier (Element ID) of the element and the length (Length) value indicating the length of the information carried; and, each Reduced Neighbor Report element will carry one or more Neighbor AP info field. Wherein, the neighbor AP information field may also be simply referred to as the neighbor AP information field. The information contained in the information field of each neighbor AP will be described below in conjunction with FIG. 4, wherein the information field of each neighbor AP includes the following information:
  • TTT info Header For the target beacon transmission times information header (TBTT info Header) field, carry the following information:
  • Target beacon transmission times information field type (target beacon transmission times information field type, TBTT info Field Type) field: indicates the type of target beacon transmission times information (TBTT info). Together with the TBTT info length (length) field, it indicates the format of the TBTT info field; in this field, the values 1, 2 and 3 are reserved.
  • Filtered neighbor AP indicates whether the service set ID (service set ID, SSID) of all BSSs carried in the Neighbor AP info field matches the SSID in the Probe Request frame.
  • the bit occupied by the Reserved field is the third bit (Bit 3), and the number of bits occupied is 1 bit.
  • TBTT info number (count) field indicates the number of TBTT info fields (field) contained in the TBTT info set.
  • TBTT info Length field indicates the length of each TBTT info field.
  • Table 1 The specific information format carried under different lengths is shown in Table 1 below:
  • For the Operating Class field indicate the operating class to which the reported neighbor AP's working channel belongs. In this field, other values such as values 0 and 255 are reserved.
  • Channel Number indicate the channel number corresponding to the working channel of the neighbor AP reported.
  • channel number 0 is a reserved value.
  • the STA can determine the specific position of the channel of the AP on the frequency band through the Operating Class field and the Channel Number field.
  • each TBTT info field includes one or more TBTT info fields.
  • the frame format of each TBTT info field can be realized in the manner shown in Figure 5, as shown in Figure 5, each TBTT info field can include the following information:
  • Target beacon transmission time offset of neighbor AP (Neighbor AP TBTT offset) field: Indicates the offset between the BSS reporting the neighbor AP and the Beacon transmission time of the BSS sending the Report, the unit is time unit (time unit, TU ), which is 1024 microseconds or 1 millisecond. Among them, a value of 254 indicates that the offset is 254Tus or higher; a value of 255 indicates that the specific offset is not known. The number of bits occupied by this field may be 1.
  • BSSID BSS identifier
  • the number of bytes occupied by this field can be 0 or 6. Wherein, this field is an optional (optional) field.
  • Short SSID field indicates the SSID to which the BSS belongs. The number of bytes occupied by this field can be 0 or 4. Wherein, this field is an optional (optional) field.
  • BSS Parameter Indicates the relevant parameters of the BSS, and the number of bytes occupied by this field can be 0 or 1. Wherein, this field is an optional (optional) field.
  • the BSS parameters specifically include the following instructions:
  • Bit 0 Channel transparent transmission recommended (OCT recommended) field: Indicates that the reported BSS expects to exchange MPDUs of management type with it through the OCT mechanism.
  • Same SSID field Indicates whether the reported neighbor AP and the AP transmitting the Report have the same SSID.
  • Bit 2 Multiple Basic Service Set Identification (Multiple BSSID) field: Indicates whether the reported neighbor AP is part of a multiple BSSID set.
  • Transmitted BSSID field If the reported neighbor AP is part of a multiple BSSID set, it further indicates whether the reported neighbor AP is Transmitted BSSID or non-transmitted BSSID.
  • Bit 4 Co-location with 2.4/5GHz AP and Member Of ESS With 2.4/5GHz Co-Located AP field: Indicates whether the reported neighbor AP is co-location with a 2.4/5GHz AP (that is, APs that are not 6GHz only) and are members of an extended service set.
  • Unsolicited Probe Response Active (Unsolicited Probe Response Active) field: Indicates whether the reported neighbor AP enables active probe response.
  • Co-located AP (Co-located AP) field: Indicates whether the reported neighbor AP is co-located with the AP that transmits the Report.
  • power spectral density (power spectral density, PSD) field indicates the maximum transmit power spectral density. Wherein, this field is an optional (optional) field. The number of bytes occupied by this field can be 0 or 1.
  • Multi-link device parameters (MLD Parameters) field: Indicates the relevant parameters of MLD, and the number of bytes occupied by this field can be 0 or 3. Specifically, it includes the following subfields:
  • the multi-link device identifier (MLD ID) subfield occupies 8 bits and indicates the identifier of the AP MLD; the link identifier (Link ID) subfield occupies 4 bits and indicates the link identifier corresponding to the reported neighbor AP;
  • the BSS Parameters Change Count (BSS Parameters Change Count) subfield occupies 8 bits and indicates the BSS parameter update counter. When a key update is reported to the AP, the BSS parameter update counter will increase, otherwise, it will remain unchanged.
  • the Reserved subfield occupies 4 bits.
  • Reduced Neighbor Report element whether all neighbors necessarily support association with the STA is not considered. However, in practical applications, not all neighbors necessarily support association with the STA. For example, when a neighbor is a neighbor AP corresponding to a non-main link of a soft AP MLD (soft AP MLD, which can also be called a software-defined AP MLD), it is necessary to prevent the Legacy STA from reading the simplified neighbor report.
  • soft AP MLD soft AP MLD, which can also be called a software-defined AP MLD
  • An implementation example corresponds to a scenario where a certain neighbor is a soft AP (soft AP).
  • Soft AP MLD is non-simultaneously transmitting and receiving (NSTR), its operation is different from that of ordinary STR AP MLD.
  • NSTR non-simultaneously transmitting and receiving
  • Soft AP MLD its links can be divided into primary links. Each soft AP MLD has only one primary link, and the rest of the links are called non-primary links.
  • Soft AP MLD only sends Beacon frames on the main link, and does not send Beacon frames on non-main links; non-main links do not allow legacy station (legacy STA) association, even if legacy STA sends on this link
  • it is only allowed to send a multi-link Probe Request frame on the main link to obtain the affiliated access point (affiliated AP) information of the non-main link end.
  • legacy station refers to the STA specified in the standard before 802.11be, such as 802.11a/b/g standard, 802.11n standard, 802.11ac STAs specified in standards and 802.11ax standards.
  • non-traditional stations refer to STAs specified in 802.11be and later standards.
  • the AP MLD needs to broadcast the information of other affiliated APs belonging to the same AP MLD as the current affiliated AP through the Reduced Neighbor Report element in the Beacon frame. But for soft AP MLD, on the one hand, it needs to broadcast the affiliated AP information of other non-main link ends through the Reduced Neighbor Report element in the beacon frame on the main link, but on the other hand, it needs to prevent legacy STA from reading Reduced Neighbor Report element, and then switch to the non-main link to send Probe Request.
  • Another implementation example corresponds to a scenario where a certain neighbor is an AP on a certain link in a multi-link device.
  • AP MLD can disable (disable) an affiliated AP or remove (remove) an affiliated AP without affecting the remaining links of AP MLD.
  • AP MLD has 3 links, link 1, link 2 and link 3.
  • link 3 When the AP MLD needs to disable or remove link 3 for some reason (such as reducing power consumption, etc.), it can be notified in advance in the corresponding Reduced Neighbor Report element of the Beacon frame on Link 1 and Link 2, so that non-associated non- AP MLD will no longer Probe (detect) the affiliated AP information corresponding to Link 3.
  • a current solution is to use the Reserved bit in the Reduced Neighbor Report element to indicate.
  • the disadvantage of this solution is that the Legacy STA cannot read the newly added bit indication information, and it is still possible to switch to Link 3 to send the Probe Request frame.
  • the present application provides a wireless frame sending method and device, a wireless frame receiving method and device, for when the value of the first field in the wireless frame is the first value, the first field is used to indicate The channel information in the neighbor AP information is invalid or not notified (or when the value of the first field is the first value, the first field is used to indicate removal of the neighbor AP or deactivation of the neighbor AP).
  • the receiver of the wireless frame determines The channel information in the neighbor AP information is invalid or not notified (or the neighbor AP is determined to be removed or the neighbor AP is deactivated), so as to prevent the legacy STA in the receiver of the wireless frame from relying on the channel information in the neighbor AP information. Attempt to detect and associate with the neighbor AP on the corresponding channel.
  • FIG. 7a is a schematic diagram of a communication method provided by an embodiment of the present application, and the method includes the following steps. It can be understood that, as shown in FIG. 7a, the communication method involves the transmission of wireless frames; therefore, the communication method may also be called a wireless frame sending method, or a wireless frame receiving method.
  • the wireless frame sending device generates a wireless frame, the wireless frame includes a first field, and when the value of the first field is the first value, the first field is used to indicate the channel information in the information of the neighbor AP invalid or not informed.
  • the wireless frame sending device generates a wireless frame, and the wireless frame includes a first information element, and the first information element includes a first field; wherein, the first information element is used to carry information about neighboring APs, and the first field It is used to indicate the channel information in the information of the neighbor AP, and when the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified.
  • the first field when the value of the first field is the first value, the first field is used to indicate that the channel information in the neighbor AP information is invalid or not notified
  • This expression can also be expressed as when the value of the first field is the first value, the first field is used to indicate that the channel information in the neighbor AP information is invalid; it can also be expressed as that in the first field
  • the first field is used to indicate that the channel information in the neighbor AP information is not indicated; it can also be expressed as when the value of the first field is the first value, the first field A field is used to indicate that the channel information in the neighbor AP information does not support association; it can also be expressed that when the value of the first field is the first value, the first field is used to indicate that the neighbor AP information The channel information does not support access, etc.
  • the first information element included in the wireless frame is a reduced Neighbor Report element (Reduced Neighbor Report element), and the frame format of the first information element can refer to the aforementioned Figure 4 The description to FIG. 6 will not be repeated here.
  • Reduced Neighbor Report element Reduced Neighbor Report element
  • the first field is used to indicate a channel number corresponding to the channel information.
  • the first field used to indicate the channel information in the neighbor AP information may specifically indicate the channel number corresponding to the channel information, so that the receiver of the wireless frame can determine the neighbor AP
  • the channel number corresponding to the channel information in the information of the neighbor AP is invalid or not notified, so as to prevent the legacy STA in the receiver of the wireless frame from trying to detect and communicate with the neighbor AP on the corresponding channel according to the channel number of the channel information in the information of the neighbor AP. associated.
  • the first field includes a channel number (Channel Number) field.
  • Channel Number field can refer to the relevant description content shown in Figure 4 above, and will not be repeated here.
  • the first field in order to make this application as compatible as possible with the definitions in standards before 802.11be (802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a), the first field includes Channel For the Number field, some reserved values in the Channel Number field can be selected as the first value.
  • the first value can be a reserved value of 0, so that when the value of the Channel Number field is set to 0, the Channel Number field indicates that the channel number corresponding to the channel information in the information of the neighbor AP is invalid or not notified, so as to avoid wireless frame
  • the legacy STA in the receiver of the device tries to detect and associate with the neighbor AP on the corresponding channel.
  • the standard it complies with is the standard before 802.11be. Since the value of the first field is a reserved value, the legacy STA cannot obtain the channel number corresponding to the accurate channel information based on the reserved value. . Therefore, if the receiver of the wireless frame generated in step S101 is a legacy STA, the legacy STA will not be able to obtain the channel number corresponding to the channel information in the neighbor AP information based on the first field, and the legacy STA can avoid The neighbor is associated with the neighbor according to the channel number corresponding to the channel information in the information of the neighbor AP.
  • the first field is used to indicate an operation category to which the channel information belongs.
  • the first field used to indicate the channel information in the neighbor AP information may specifically indicate the operation category to which the channel information belongs, so that the receiver of the wireless frame determines the neighbor AP's
  • the operation category of the channel information in the information is invalid or not notified, so as to prevent the legacy STA in the receiver of the wireless frame from trying to detect and communicate with the neighbor AP on the corresponding channel according to the operation category described in the channel information in the information of the neighbor AP. associated.
  • the first field includes an operating class (Operating Class) field.
  • the implementation of the Operating Class field can refer to the relevant description shown in the aforementioned Figure 4, and will not be repeated here.
  • the first field in order to make this application as compatible as possible with the definitions in standards before 802.11be (802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a), the first field includes the Operating When using the Class field, you can choose some reserved values in the Operating Class field as the first value.
  • the first value may be a reserved value of 0 or 255, so that when the value of the Operating Class field is set to 0 or 255, the Operating Class field indicates that the operating class of the channel information in the information of the neighbor AP is invalid or not notified, Prevent the legacy STA in the receiver of the wireless frame from trying to detect and associate with the neighbor AP on the operation category described in the corresponding channel according to the channel information in the neighbor AP information.
  • the standard it complies with is the standard before 802.11be. Since the value of the first field is a reserved value, the legacy STA cannot obtain accurate channel information based on the reserved value. Therefore, if the receiver of the wireless frame generated in step S101 is a legacy STA, the legacy STA will not be able to obtain the operation category of the channel information in the information of the neighbor AP based on the first field, and the legacy STA can be avoided.
  • the operation category to which the channel information in the neighbor AP information belongs is associated with the neighbor.
  • the first field may include a Channel Number field, and the first field may also include an Operating Class field; and in practical applications, the first field may also include both a Channel Number field and an Operating Class field. Therefore, the whole of the two fields, the Channel Number field and the Operating Class field, is realized as the first field.
  • the first value corresponding to the Channel Number field and the first value corresponding to the Operating Class field may be the same or different, which is not limited here.
  • the first field in the wireless frame generated in step S101 when the first field includes both the Channel Number field and the Operating Class field, the first value corresponding to the Channel Number field and the first value corresponding to the Operating Class field are both 0; , the first field in the wireless frame generated in step S101 is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified, or the first field in the wireless frame generated in step S101 is used to indicate the channel information of the neighbor AP The channel number corresponding to the channel information in the information is invalid or not notified, and the operation category to which the channel information in the neighbor AP information belongs is invalid or not notified.
  • the first field in the wireless frame generated by step S101 when the first field includes both the Channel Number field and the Operating Class field, the first value corresponding to the Channel Number field is 0 and the first value corresponding to the Operating Class field is 255 ;
  • the first field in the wireless frame generated by step S101 is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified, or the first field in the wireless frame generated by step S101 is used to indicate that the neighbor AP The channel number corresponding to the channel information in the AP information is invalid or not notified, and the operation category to which the channel information in the neighbor AP information belongs is invalid or not notified.
  • the standard it complies with is the standard before 802.11be. Since the value of the first field is a reserved value, the legacy STA cannot obtain accurate channel information based on the reserved value. The channel number corresponding to the channel information. Therefore, if the recipient of the wireless frame generated in step S101 is a legacy STA, the legacy STA will not be able to obtain the channel number corresponding to the channel information and the operation category to which the channel information belongs in the information of the neighbor AP based on the first field. It can also prevent the legacy STA from associating with the neighbor AP according to the channel number in the neighbor AP information and the operation category to which the channel information belongs.
  • the first field when the value of the first field is the first value, the first field is also used to indicate to remove the neighbor AP; or, when the value of the first field is When the first value is used, the first field is also used to indicate that the neighbor AP is deactivated.
  • the wireless frame generated in step S101 in the scenario where the neighbor AP is an AP on a certain link in the multi-link device, for the purpose of reducing power consumption or other purposes, it may be necessary to disable ( disable) or remove (remove) the neighbor AP, so that the neighbor AP will no longer support STA association.
  • the status information of the neighboring AP may also be indicated, for example, indicating (to be) removing the neighboring AP or indicating (to be) deactivating the neighboring AP. In order to make the receiver of the wireless frame know that the neighbor AP is an unassociated neighbor AP.
  • the first information element is used to indicate information of neighbor APs on the non-main link.
  • the neighbor AP is the neighbor AP corresponding to the non-main link of the soft AP MLD (soft AP MLD)
  • APs that are not on the main link perform detection and association operations.
  • the first information element further includes a second field, and the second field includes a first subfield and a second subfield; where the second field is used to indicate the basic Service set parameters; and, the first subfield included in the second field is used to indicate whether the basic service set expects to exchange the medium access control of the management type with the neighbor AP through the channel transparent transmission (on-channel tunneling, OCT) mechanism Protocol data unit (medium access control protocol data unit, MAC PDU, referred to as MPDU), and when the first field is used to indicate that the channel information in the neighbor AP information is invalid or not notified, the first subfield is used to indicate The basic service set expects to exchange management-type media access control protocol data units (MPDUs) with the neighbor through the OCT mechanism; and the second subfield included in the second field is used to indicate whether the neighbor enables active probe response, and in the The first field is used to indicate that the channel information in the information of the neighboring AP is invalid or not notified, and the second subfield is used to indicate that the
  • the first information element used to carry the information of the neighbor AP also includes a second field used to indicate the BSS parameters corresponding to the neighbor, where the second field further includes a first subfield and a second subfield.
  • the first subfield is used to indicate that the basic service set expects to exchange management type MPDUs with the neighbor through the OCT mechanism
  • the second subfield is used to indicate that the neighbor does not enable active probe response. Therefore, by setting the first subfield and the second subfield in the second field, it is possible to further prevent the receiver of the wireless frame from associating with the neighbor according to the basic service set parameters corresponding to the neighbor.
  • the second field is a basic service set parameter (basic service set parameter, BSS Parameter) field
  • the first subfield is a channel transparent transmission recommended (OCT recommended) field
  • the second subfield It is the subfield of Unsolicited Probe Response Active.
  • the first information element further includes a third field, where the third field is used to indicate the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor, and in the first When the field is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified, the third field is used to indicate that the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor AP is unknown information.
  • the first information element used to carry the information of the neighboring AP further includes a third field used to indicate the offset information of the sending time of the beacon frame of the basic service set corresponding to the neighboring AP.
  • the third field is used to indicate the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor AP for unknown information.
  • the wireless frame generated in step S101 is a management frame.
  • the wireless frame includes a beacon (Beacon) frame, a probe request (Probe Request) frame, a probe response (Probe Response) frame, an association request (Association Request) frame, a reassociation request (Reassociation Request) frame, a disassociation One or more of (Disassociation) frame, deauthentication (Dauthentication) frame, identity authentication (Authentication) frame, etc.
  • the wireless frame sending device sends the wireless frame.
  • the wireless frame sending device after the wireless frame sending device generates the wireless frame in step S101, the wireless frame sending device sends the wireless frame in step S102; correspondingly, the wireless frame receiving device receives the wireless frame in step S102.
  • the wireless frame sending device and the wireless frame receiving device may perform wireless frame transmission based on the aforementioned communication system shown in FIG. 1 or FIG.
  • the radio frame is transmitted by one or more of the links.
  • the wireless frame sending device may perform sending preprocessing on the wireless frame, and send the processing result obtained by the sending preprocessing in step S102; for example, the sending preprocessing may include encryption, scrambling, and the like.
  • the wireless frame sending device may receive the processing result obtained by performing pre-processing on the wireless frame, and perform receiving pre-processing on the processing result in step S102 to obtain a wireless frame; for example, the receiving pre-processing may include decryption, decoding harassing etc.
  • the wireless frame receiving device determines that the channel information in the information of the neighbor AP is invalid or not notified based on the first field in the wireless frame.
  • the wireless frame receiving device determines channel information in the information of neighboring APs based on the wireless frame received in step S102.
  • the wireless frame receiving device may determine the neighbor AP according to the value of the first field in the first information element in the received wireless frame used to indicate the channel information in the neighbor AP information.
  • the channel information in the information may be determined.
  • the wireless frame receiving method is applied to a non-traditional station (legacy STA), that is, when the wireless frame receiving device is a non-legacy STA, the non-legacy STA is set to the first field based on the value of the first field in the wireless frame.
  • One way to get a value is to determine that the channel information in the neighbor AP information indicated by the wireless frame has not been notified; in addition, the non-legacy STA can also obtain the channel information in the neighbor AP information based on other messages/information elements/fields , such as the Primary Channel field in the HT Operation element.
  • the wireless frame receiving method is applied to a legacy station (legacy STA), that is, when the wireless frame receiving device is a legacy STA, the legacy STA is set to the first value based on the value of the first field in the wireless frame, and the legacy STA It is interpreted that the first value is a reserved value; therefore, the legacy STA determines that the channel information in the neighbor AP information indicated by the wireless frame is invalid.
  • the STA since this application is applied to wireless local area network systems supporting IEEE 802.11ax next-generation WiFi protocols, such as 802.11be, or EHT and other related protocols, for STAs running on 802.11be or EHT related protocols, the following The standard is 802.11be and later standards, so that the STA can read and obtain the meaning of the first value of the first field. Therefore, the STA, as the wireless frame receiving device in step S103, can determine the value of the first field in the first information element in the wireless frame used to indicate the channel information in the information of the neighboring AP in the information of the neighboring AP. and, when the value of the first field is the first value, the STA determines that the channel information in the neighbor AP information is invalid or not notified.
  • next-generation WiFi protocols such as 802.11be, or EHT and other related protocols
  • the legacy STA determines the information of the neighboring AP by the value of the first field used to indicate the channel information in the information of the neighboring AP in the first information element in the wireless frame channel information; and, when the value of the first field is the first value, the legacy STA determines that the value of the first field is a reserved value, and the legacy STA cannot recognize the meaning of the first field Unable to determine the channel information in the neighbor AP's information. Therefore, the legacy STA determines that the channel information in the neighbor AP information is invalid.
  • the neighbor AP indicated by the first information element in the wireless frame is a neighbor AP corresponding to a non-main link of a soft AP MLD (soft AP MLD, which may also be called a software-defined AP MLD).
  • soft AP MLD which may also be called a software-defined AP MLD.
  • the non-AP MLD obtains the affiliated AP information corresponding to the non-main link by sending a multi-link Probe Request frame on the main link.
  • the multi-link Probe Response frame returned by the Soft AP MLD it can indicate the Channel Number information of the non-primary link through the Primary Channel field in the HT Operation element (high throughput operation element). Therefore, setting the Channel Number field in the Reduced Neighbor Report element to a special reserved value, such as 0, will not have any impact on the subsequent operations of the non-AP MLD.
  • the legacy STA cannot obtain channel information through the Reduced Neighbor Report element, thereby preventing it from switching to a non-main link to send Probe Request frames.
  • the neighbor AP indicated by the first information element in the wireless frame is an AP on a certain link in the multi-link device.
  • AP MLD When AP MLD wants to disable an affiliated AP or Remove an affiliated AP, it can notify the non-AP MLD (that is, the wireless frame receiving device) in advance through the Reduced Neighbor Report element in the Beacon on other links, and at the same time need Prevent the legacy STA from sending Probe Request or Association Request frames on the link where the affiliated AP to be removed is located. At this point, you can set the Operating Class field or Channel Number or both fields to a reserved value, such as 0 or 255. Based on this method, the non-AP MLD can determine that the corresponding affiliated AP is about to be removed. At the same time, legacy STA cannot obtain channel information, so as to prevent legacy STA from switching to the corresponding channel to send Probe Request frame or Association Request frame.
  • the receiver of the wireless frame can determine that the channel information in the information of the neighbor AP is invalid or not notified, avoiding wireless frame According to the channel information in the information of the neighboring AP, the legacy STA in the receiving side tries to detect and associate with the neighboring AP on the corresponding channel.
  • FIG. 7b is a schematic diagram of a communication method provided by an embodiment of the present application, and the method includes the following steps. It can be understood that, as shown in FIG. 7b, the communication method involves the transmission of wireless frames; therefore, the communication method may also be called a wireless frame sending method, or a wireless frame receiving method.
  • the device for sending a wireless frame generates a wireless frame, the wireless frame includes a target field, and when the value of the target field is a first value, the target field is used to indicate removal of the neighbor AP or deactivation of the neighbor AP.
  • the wireless frame sending device generates a wireless frame, and the wireless frame includes a first information element, and the first information element includes a target field; wherein, the first information element is used to carry information about neighboring APs, and in the target field When the value is the first value, the target field is used to indicate to remove the neighbor AP or deactivate the neighbor AP.
  • the target field in the wireless frame generated in step S201 includes at least one of the following:
  • Channel Number Channel Number (Channel Number) field
  • Target beacon transmission times information field type (target beacon transmission times information field type, TBTT info Field Type) field.
  • the target field can be implemented in the above multiple ways, wherein the first value is a reserved value of any of the above fields. Therefore, when the wireless frame receiving method is applied to a non-traditional station (legacy STA), the non-legacy STA determines that the neighbor AP is (about to be) removed based on the way in which the value of the target field in the wireless frame is set to the first value Or (to be) disabled; when the radio frame receiving method is applied to a legacy station (legacy STA), the legacy STA is based on the way in which the value of the target field in the radio frame is set to the first value, and the legacy STA interprets the first value A value is reserved; therefore, the legacy STA determines that the target field is an invalid field.
  • legacy STA legacy station
  • the target field when the target field includes a channel number (Channel Number) field, the first value is 0; when the target field includes an operating class (Operating Class) field, the first value is 0 or 255; when the When the target field includes the reserved (Reserved) field in the TBTT info Header field, the first value is 0 or 1; when the target field includes the TBTT info Field Type field, the first value is 1 or 2 or 3.
  • channel number Channel Number
  • the target field when the target field includes an operating class (Operating Class) field, the first value is 0 or 255; when the When the target field includes the reserved (Reserved) field in the TBTT info Header field, the first value is 0 or 1; when the target field includes the TBTT info Field Type field, the first value is 1 or 2 or 3.
  • the first information element further includes a second field, and the second field includes a first subfield and a second subfield; where the second field is used to indicate the basic Service set parameter; And, the first subfield that the second field comprises is used for indicating whether this basic service set expects to exchange the media access control of management type with this neighbor AP through channel transparent transmission (on-channel tunneling, OCT) mechanism Protocol data unit (medium access control protocol data unit, MAC PDU, referred to as MPDU), and when the target field is used to indicate removal of the neighbor AP or deactivation of the neighbor AP, the first subfield is used to indicate the basic service The set expects to exchange management-type media access control protocol data units (MPDUs) with the neighbor AP through the OCT mechanism; and, the second subfield included in the second field is used to indicate whether the neighbor AP starts active probe response, and in the target field is used to indicate that the neighbor AP is removed or the neighbor AP is deactivated, and the second subfield is used to indicate that the neighbor
  • MPDU management-
  • the first information element used to carry the information of the neighbor AP further includes a second field used to indicate the BSS parameters corresponding to the neighbor AP, wherein the second field further includes a first subfield and a second subfield.
  • the first subfield is used to indicate that the basic service set expects to exchange management type MPDUs with the neighbor AP through the OCT mechanism
  • the second The second subfield is used to indicate that the neighboring AP does not enable active probe response. Therefore, by setting the first subfield and the second subfield in the second field, it is possible to further prevent the receiver of the wireless frame from associating with the neighbor AP according to the BSS parameter corresponding to the neighbor AP.
  • the second field is a basic service set parameter (BSS Parameter) field
  • the first subfield is a channel transparent transmission recommended (OCT recommended) field
  • the second subfield is an unsolicited probe response Active (Unsolicited Probe Response Active) subfield.
  • the first information element further includes a third field, where the third field is used to indicate the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor AP, and in the target The field is used to indicate that when the neighbor AP is removed or the neighbor AP is deactivated, the third field is used to indicate that the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor AP is unknown information.
  • the first information element used to carry the information of the neighboring AP further includes a third field used to indicate the offset information of the sending time of the beacon frame of the basic service set corresponding to the neighboring AP.
  • the third field is used to indicate that the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor AP is unknown information .
  • the first information element in the wireless frame generated in step S201 is a reduced neighbor report element (Reduced Neighbor Report element).
  • the wireless frame generated in step S201 is a management frame.
  • the wireless frame includes a beacon (Beacon) frame, a probe request (Probe Request) frame, a probe response (Probe Response) frame, an association request (Association Request) frame, a reassociation request (Reassociation Request) frame, a disassociation One or more of (Disassociation) frame, deauthentication (Dauthentication) frame, identity authentication (Authentication) frame, etc.
  • the wireless frame sending device sends the wireless frame.
  • the wireless frame sending device after the wireless frame sending device generates the wireless frame in step S201, the wireless frame sending device sends the wireless frame in step S202; correspondingly, the wireless frame receiving device receives the wireless frame in step S202.
  • the wireless frame sending device and the wireless frame receiving device may perform wireless frame transmission based on the aforementioned communication system shown in FIG. 1 or FIG.
  • the radio frame is transmitted by one or more of the links.
  • the wireless frame sending device may perform sending preprocessing on the wireless frame, and send a processing result obtained by the sending preprocessing in step S202; for example, the sending preprocessing may include encryption, scrambling, and the like.
  • the wireless frame sending device may receive the processing result obtained by performing pre-processing on the wireless frame, and perform receiving pre-processing on the processing result in step S202 to obtain a wireless frame; for example, the receiving pre-processing may include decryption, decoding harassing etc.
  • the wireless frame receiving apparatus determines that the neighbor AP (to be) is removed or the neighbor AP is (to be) deactivated based on the target field in the wireless frame.
  • the wireless frame receiving apparatus may determine that the neighbor AP is (soon to be) removed or (soon to be) removed according to the first value of the target field in the first information element in the received wireless frame disabled.
  • the standard they comply with is 802.11 be and subsequent standards, so that the STA can read and obtain the meaning when the value of the target field is the first value. Therefore, the STA, as the wireless frame receiving device in step S103, can determine that the neighbor AP is (soon to be) removed or (soon to be) deactivated from the first value of the target field in the first information element in the wireless frame .
  • the standard it complies with is the standard before 802.11be. Since the value of the first field is a reserved value, the legacy STA cannot obtain the accurate information indicated by the target field based on the reserved value. Therefore, the legacy STA, as the wireless frame receiving device in step S103, based on the manner in which the value of the target field in the wireless frame is set as the first value, the legacy STA interprets and obtains that the first value is a reserved value; therefore, the legacy STA The target field was determined to be an invalid field.
  • the neighbor AP indicated by the first information element in the wireless frame is an AP on a certain link in the multi-link device.
  • AP MLD When AP MLD wants to disable an affiliated AP or Remove an affiliated AP, it can notify the non-AP MLD (that is, the wireless frame receiving device) in advance through the Reduced Neighbor Report element in the Beacon on other links, and at the same time need Prevent the legacy STA from sending Probe Request or Association Request frames on the link where the affiliated AP to be removed is located. At this time, the value of the target field may be set as the first value. Based on this method, the non-AP MLD can determine that the corresponding affiliated AP is about to be removed. At the same time, legacy STA cannot obtain channel information, so as to prevent legacy STA from switching to the corresponding channel to send Probe Request frame or Association Request frame.
  • a neighbor AP when not all neighbors necessarily support association with STAs, for example, when a neighbor AP is a soft AP MLD (soft AP MLD, also In the scenario of a neighbor AP corresponding to a non-main link that can be called a software-defined AP (MLD), in order to avoid the impact on the device on the main link, it may cause the neighbor AP to be unable to support the non-main link Associate STA; for another example, when a neighbor is an AP on a link in a multi-link device, it may be necessary to disable or remove it to reduce power consumption or for other purposes. ) the neighboring AP, which causes the neighboring AP to no longer support STA association.
  • MLD software-defined AP
  • the value of the target field in the wireless frame is set to the first value, so that the The receiver of the wireless frame determines that the neighbor AP is (soon to be) removed or (soon to be) deactivated, and the receiver of the wireless frame is prevented from attempting to associate with the neighbor AP according to the channel information in the information of the neighbor AP.
  • FIG. 8 is a schematic diagram of a communication device 800 provided by an embodiment of the present application, where the communication device 800 includes a processing unit 801 and a transceiver unit 802 .
  • the communication device 800 may specifically be a wireless frame sending device, configured to implement the wireless frame sending method in the embodiment shown in FIG. 7a.
  • the processing unit 801 and the transceiver unit 802 include the following processes.
  • the processing unit 801 is configured to generate a wireless frame, where the wireless frame includes a first information element, and the first information element includes a first field; where the first information element is used to carry information about neighboring APs, and the first field is used for Indicating the channel information in the information of the neighbor AP, and when the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified;
  • the transceiver unit 802 is used for sending the wireless frame.
  • the wireless frame sent by the transceiver unit 802 includes a first information element for carrying the information of the neighbor AP, and the first information element includes a first field for indicating channel information in the information of the neighbor AP; wherein, in When the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified.
  • the receiver of the wireless frame determines The channel information in the neighbor AP information is invalid or not notified, so as to prevent the legacy STA in the receiver of the wireless frame from trying to detect and associate with the neighbor AP on the corresponding channel according to the channel information in the neighbor AP information.
  • the communication device 800 may also be a wireless frame receiving device, configured to implement the wireless frame receiving method in the embodiment shown in FIG. 7a.
  • the processing unit 801 and the transceiver unit 802 include the following processes.
  • the transceiver unit 802 is configured to receive a wireless frame, the wireless frame includes a first information element, and the first information element includes a first field; wherein, the first information element is used to carry information about a neighbor AP, and the first field is used for Indicate the channel information in the information of the neighboring AP;
  • the processing unit 801 is configured to determine the channel information in the information of the neighboring AP according to the wireless frame, wherein, when the value of the first field is the first value, the first field is used to indicate the information of the neighboring AP The channel information in is invalid or not announced.
  • the wireless frame received by the transceiver unit 802 includes a first information element for carrying the information of the neighbor AP, and the first information element includes a first field for indicating the channel information in the information of the neighbor AP; wherein, in When the value of the first field is the first value, the first field is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified.
  • the receiver of the wireless frame determines The channel information in the neighbor AP information is invalid or not notified, so as to prevent the legacy STA in the receiver of the wireless frame from trying to detect and associate with the neighbor AP on the corresponding channel according to the channel information in the neighbor AP information.
  • the first field is used to indicate a channel number corresponding to the channel information.
  • the first field includes a channel number (Channel Number) field.
  • the first field is used to indicate an operation category to which the channel information belongs.
  • the first field includes an Operating Class field.
  • the first field when the value of the first field is the first value, the first field is also used to indicate to remove the neighbor AP; or, when the value of the first field is When the first value is used, the first field is also used to indicate that the neighbor is disabled.
  • the wireless frame further includes a target field, and when the value of the target field is the second value, the target field is used to indicate to remove the neighboring AP; or, the value of the target field is When the value is the second value, the target field is used to indicate that the neighboring AP is deactivated.
  • the target field includes at least one of the following: the reserved (Reserved) field in the target beacon transmission times information header (target beacon transmission times information header, TBTT info Header) field, the target beacon transmission time information field Type (target beacon transmission times information field type, TBTT info Field Type) field, etc.
  • the target field includes the reserved (Reserved) field in the TBTT info Header field
  • the first value is 0 or 1
  • the target field includes the TBTT info Field Type field
  • the first value is 1 or 2 or 3.
  • the first information element is used to indicate information of neighbor APs on the non-main link.
  • the first information element further includes a second field, and the second field includes a first subfield and a second subfield; where the second field is used to indicate the basic service corresponding to the neighbor set parameters; and, the first subfield included in the second field is used to indicate whether the basic service set expects to exchange management-type media access control protocol data with the neighbor through an on-channel tunneling (OCT) mechanism unit (medium access control protocol data unit, MAC PDU, referred to as MPDU), and when the first field is used to indicate that the channel information in the neighbor AP information is invalid or not notified, the first subfield is used to indicate the basic The service set expects to exchange management-type media access control protocol data units (MPDUs) with the neighbor through the OCT mechanism; and, the second subfield included in the second field is used to indicate whether the neighbor starts active probe response, and in the first field is used to indicate that the channel information in the information of the neighbor AP is invalid or not notified, and the second subfield is used to indicate that the neighbor does not enable
  • OCT on-
  • the second field is a basic service set parameter (basic service set parameter, BSS Parameter) field
  • the first subfield is a channel transparent transmission recommended (OCT recommended) field
  • the second subfield It is the subfield of Unsolicited Probe Response Active.
  • the first information element further includes a third field, where the third field is used to indicate the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor, and in the first When the field is used to indicate that the channel information in the neighbor AP information is invalid or not notified, the third field is used to indicate that the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor is unknown information.
  • the first information element is a reduced neighbor report element (Reduced Neighbor Report element).
  • the wireless frame is a management frame.
  • the wireless frame includes a beacon (Beacon) frame, a probe request (Probe Request) frame, a probe response (Probe Response) frame, an association request (Association Request) frame, a reassociation request (Reassociation Request) frame, a disassociation One or more of (Disassociation) frame, deauthentication (Dauthentication) frame, identity authentication (Authentication) frame, etc.
  • the communication device 800 may specifically be a wireless frame sending device, configured to implement the wireless frame sending method in the foregoing embodiment shown in FIG. 7b.
  • the processing unit 801 and the transceiver unit 802 include the following processes.
  • the wireless frame sent by the transceiver unit 801 includes a first information element for carrying information about neighboring APs, and the first information element includes a target field; where, when the value of the target field is the first value, the The target field is used to indicate removal or deactivation of the neighbor AP. Therefore, when the sender of the wireless frame determines that the neighbor is not used to associate with the receiver of the wireless frame, by setting the value of the target field in the wireless frame to the first value, the receiver of the wireless frame determines the The neighbor AP is (soon to be) removed or (soon to be) deactivated, preventing the receiver of the wireless frame from attempting to associate with the neighbor according to the channel information in the information of the neighbor AP.
  • the communication device 800 may specifically be a wireless frame receiving device, configured to implement the wireless frame receiving method in the foregoing embodiment shown in FIG. 7b.
  • the processing unit 801 and the transceiver unit 802 include the following processes.
  • the wireless frame received by the transceiver unit 801 includes a first information element for carrying information about neighboring APs, and the first information element includes a target field; where, when the value of the target field is the first value, the The target field is used to indicate removal or deactivation of the neighbor AP. Therefore, when the sender of the wireless frame determines that the neighbor is not used to associate with the receiver of the wireless frame, by setting the value of the target field in the wireless frame to the first value, the receiver of the wireless frame determines the The neighbor AP is (soon to be) removed or (soon to be) deactivated, preventing the receiver of the wireless frame from attempting to associate with the neighbor according to the channel information in the information of the neighbor AP.
  • the target field includes at least one of the following:
  • Channel Number Channel Number (Channel Number) field
  • Target beacon transmission times information field type (target beacon transmission times information field type, TBTT info Field Type) field.
  • the target field when the target field includes a channel number (Channel Number) field, the first value is 0; when the target field includes an operating class (Operating Class) field, the first value is 0 or 255; when the When the target field includes the reserved (Reserved) field in the TBTT info Header field, the first value is 0 or 1; when the target field includes the TBTT info Field Type field, the first value is 1 or 2 or 3.
  • Channel Number Channel Number
  • the target field when the target field includes an operating class (Operating Class) field, the first value is 0 or 255; when the When the target field includes the reserved (Reserved) field in the TBTT info Header field, the first value is 0 or 1; when the target field includes the TBTT info Field Type field, the first value is 1 or 2 or 3.
  • the first information element further includes a second field, and the second field includes a first subfield and a second subfield; where the second field is used to indicate the basic service corresponding to the neighbor set parameters; and, the first subfield included in the second field is used to indicate whether the basic service set expects to exchange management-type media access control protocol data with the neighbor through an on-channel tunneling (OCT) mechanism unit (medium access control protocol data unit, MAC PDU, referred to as MPDU), and when the target field is used to indicate removal of the neighbor AP or deactivation of the neighbor AP, the first subfield is used to indicate that the basic service set expects
  • OCT on-channel tunneling
  • MPDU medium access control protocol data unit
  • MPDU medium access control protocol data unit
  • the second field is a basic service set parameter (basic service set parameter, BSS Parameter) field
  • the first subfield is a channel transparent transmission recommended (OCT recommended) field
  • the second subfield It is the subfield of Unsolicited Probe Response Active.
  • the first information element further includes a third field, where the third field is used to indicate the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor, and in the target field When the neighbor AP is removed or the neighbor AP is deactivated, the third field is used to indicate that the offset information of the beacon frame sending time of the basic service set corresponding to the neighbor is unknown information.
  • the first information element is a reduced neighbor report element (Reduced Neighbor Report element).
  • the wireless frame is a management frame.
  • the wireless frame includes a beacon (Beacon) frame, a probe request (Probe Request) frame, a probe response (Probe Response) frame, an association request (Association Request) frame, a reassociation request (Reassociation Request) frame, a disassociation One or more of (Disassociation) frame, deauthentication (Dauthentication) frame, identity authentication (Authentication) frame, etc.
  • the communication device 800 may also be used to execute other aforementioned embodiments and achieve corresponding beneficial effects.
  • the communication device 800 may also be used to execute other aforementioned embodiments and achieve corresponding beneficial effects.
  • FIG. 9 is a schematic structural diagram of a communication device 900 provided by an embodiment of the present application.
  • the communication device 900 includes a processor 901 and a transceiver 902 .
  • the communication device 900 may be a wireless frame sending device or a wireless frame receiving device, or a chip therein.
  • FIG. 9 shows only the main components of the communication device 900 .
  • the communication device may further include a memory 903 and an input and output device (not shown in the figure).
  • the processor 901 is mainly used to process communication protocols and communication data, control the entire communication device, execute software programs, and process data of the software programs.
  • the memory 903 is mainly used to store software programs and data.
  • the transceiver 902 may include a radio frequency circuit and an antenna, and the radio frequency circuit is mainly used for converting a baseband signal to a radio frequency signal and processing the radio frequency signal.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.
  • the processor 901, the transceiver 902, and the memory 903 may be connected through a communication bus.
  • the processor 901 can read the software program in the memory 903, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor 901 performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 901, and the processor 901 converts the baseband signal into data and processes the data deal with.
  • the processor 901 may include a communication interface for implementing receiving and sending functions.
  • the communication interface may be a transceiver circuit, or an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits for realizing the functions of receiving and sending can be separated or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface or interface circuit may be used for signal transmission or transfer.
  • the processor 901 may store instructions, the instructions may be computer programs, and the computer programs run on the processor 901 to enable the communication device 900 to execute the method described in any of the above-mentioned embodiments.
  • the computer program may be fixed in the processor 901, and in this case, the processor 901 may be implemented by hardware.
  • the communication device 900 may include a circuit, and the circuit may implement the function of sending or receiving or communicating in any of the foregoing embodiments.
  • the processor and communication interface described in this application can be implemented in integrated circuit (integrated circuit, IC), analog IC, radio frequency integrated circuit (radio frequency integrated circuit, RFIC), mixed signal IC, application specific integrated circuit (application specific integrated circuit) , ASIC), printed circuit board (printed circuit board, PCB), electronic equipment, etc.
  • the processor and communication interface can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS nMetal-oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the radio frequency circuit and antenna may be set independently of the processor performing baseband processing.
  • the radio frequency circuit and antenna may be arranged remotely from the communication device.
  • a communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • a set of one or more ICs may also include storage components for storing data and instructions;
  • ASIC such as modem (Modem);
  • Receivers smart terminals, wireless devices, handsets, mobile units, vehicle-mounted devices, cloud devices, artificial intelligence devices, etc.;
  • the processor 901 may be used to perform, for example but not limited to, baseband related processing
  • the transceiver 902 may be used to perform, for example but not limited to, radio frequency transceiving.
  • the above-mentioned devices can be arranged on independent chips, or at least partly or all of them can be arranged on the same chip.
  • processors can be further divided into analog baseband processors and digital baseband processors.
  • the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be set on an independent chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip.
  • a digital baseband processor can be combined with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) integrated on the same chip.
  • application processors such as but not limited to graphics processors, multimedia processors, etc.
  • Such a chip can be called a system chip (system on chip). Whether each device is independently arranged on different chips or integrated and arranged on one or more chips often depends on the specific needs of product design.
  • the embodiment of the present invention does not limit the specific implementation forms of the foregoing devices.
  • the embodiment of the present application also provides a computer-readable storage medium, where computer program code is stored, and when the above-mentioned processor executes the computer program code, the electronic device executes the method in any one of the above-mentioned embodiments.
  • An embodiment of the present application further provides a computer program product, which, when the computer program product is run on a computer, causes the computer to execute the method in any one of the foregoing embodiments.
  • the embodiment of the present application also provides a communication device, which can exist in the product form of a chip.
  • the structure of the device includes a processor and an interface circuit.
  • the processor is used to communicate with other devices through a receiving circuit, so that the device performs the aforementioned The method in any of the examples.
  • An embodiment of the present application further provides a WLAN communication system, including a wireless frame sending device and a wireless frame receiving device, and the wireless frame sending device and the wireless frame receiving device can execute the method in any of the preceding embodiments.
  • the steps of the methods or algorithms described in connection with the disclosure of this application can be implemented in the form of hardware, or can be implemented in the form of a processor executing software instructions.
  • Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory (Random Access Memory, RAM), flash memory, erasable programmable read-only memory (Erasable Programmable ROM, EPROM), electrically erasable Programmable read-only memory (Electrically EPROM, EEPROM), registers, hard disk, removable hard disk, CD-ROM, or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be a component of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the ASIC may be located in the core network interface device.
  • the processor and the storage medium may also exist in the core network interface device as discrete components.
  • Computer-readable media includes both computer-readable storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

一种无线帧发送方法及装置、无线帧接收方法及装置，用于使得无线帧的接收方确定邻居AP的信息中的信道信息无效或未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道上尝试与邻居AP进行探测和关联。在无线帧发送方法中，生成无线帧，无线帧包括第一信息元素，第一信息元素包括第一字段；其中，第一信息元素用于承载邻居AP的信息，第一字段用于指示邻居AP的信息中的信道信息，且在第一字段的取值为第一取值时，第一字段用于指示邻居AP的信息中的信道信息无效或未告知；发送无线帧；该方法应用于支持IEEE802.11ax下一代WiFi协议，如802.11be，或EHT等802.11系列协议的无线局域网系统。

Description

无线帧发送方法及装置、无线帧接收方法及装置
本申请要求于2021年07月27日提交中国国家知识产权局，申请号为202110852559.7，发明名称为“无线帧发送方法及装置、无线帧接收方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线局域网(wireless local arer networks，WLAN)技术领域，尤其涉及一种无线帧发送方法及装置、无线帧接收方法及装置。
背景技术
在WLAN通信过程中，站点(station，STA)要想与接入点(access point，AP)进行关联建立连接，可以通过扫描来发现该AP的存在。一般地，为了避免STA不停地扫描信道以减少STA的扫描时间，AP可以在管理帧中携带有精简的邻居汇报元素(Reduced Neighbor Report element)，用于承载该AP的邻居AP的信息，以使得接收得到该管理帧的STA可以基于该AP的邻居AP的信息建立与该邻居之间的关联。
然而，在实际应用中，并非所有的邻居都必然支持与STA进行关联。例如，当某个邻居为软AP(soft AP)的场景下，为了避免对主链路上的设备的影响，有可能导致该邻居并无法支持在非主链路上关联STA；又如，当某个邻居为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居，导致该邻居将不再支持STA的关联。
为此，如何避免STA接入不支持与STA进行关联的邻居，是一个亟待解决的技术问题。
发明内容
本申请实施例提供了一种无线帧发送方法及装置、无线帧接收方法及装置，用于在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中第一字段的取值设置为第一取值的方式，使得该无线帧的接收方确定邻居AP的信息中的信道信息无效或未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道上尝试与该邻居AP进行探测和关联。
本申请实施例第一方面提供了一种无线帧发送方法，应用于WLAN通信，该方法由WLAN设备执行，或者，该方法由WLAN设备中的部分组件(例如处理器、芯片、或芯片系统等)执行。在该方法中，WLAN设备首先生成无线帧，该无线帧包括第一信息元素，该第一信息元素包括第一字段；其中，该第一信息元素用于承载邻居AP的信息，该第一字段用于指示该邻居AP的信息中的信道信息，且在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知；此后，该WLAN设备发送该无线帧。
需要说明的是，在本实施例及后续实施例中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知这一表述，还可以表述为在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效； 还可以表述为在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息未指示；还可以表述为在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息不支持关联；还可以表述为在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息不支持接入等。
基于上述技术方案，WLAN设备所发送的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括用于指示该邻居AP的信息中的信道信息的第一字段；其中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中第一字段的取值设置为第一取值的方式，使得该无线帧的接收方确定邻居AP的信息中的信道信息无效或未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道上尝试与该邻居AP进行探测和关联。
本申请实施例第二方面提供了一种无线帧接收方法，应用于WLAN通信，该方法由WLAN设备执行，或者，该方法由WLAN设备中的部分组件(例如处理器、芯片、或芯片系统等)执行。在该方法中，接收无线帧，该无线帧包括第一信息元素，该第一信息元素包括第一字段；其中，该第一信息元素用于承载邻居AP的信息，该第一字段用于指示该邻居AP的信息中的信道信息；此后，该WLAN设备根据该无线帧确定该邻居AP的信息中的信道信息，其中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息未告知。
基于上述技术方案，WLAN设备所接收的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括用于指示该邻居AP的信息中的信道信息的第一字段；其中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息未告知。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中第一字段的取值设置为第一取值的方式，使得该无线帧的接收方确定邻居AP的信息中的信道信息未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道上尝试与该邻居AP进行探测和关联。
需要说明的是，当无线帧接收方法应用于非传统站点(legacy STA)时，非legacy STA基于该无线帧中第一字段的取值设置为第一取值的方式，确定该无线帧所指示的邻居AP的信息中的信道信息未告知；此外，非legacy STA还可以基于其他消息/信息元素/字段获取得到该邻居AP的信息中的信道信息，例如高吞吐量操作元素(HT Operation element)中的主信道(Primary Channel)字段。当无线帧接收方法应用于传统站点(legacy STA)时，legacy STA基于该无线帧中第一字段的取值设置为第一取值的方式，legacy STA解读得到该第一取值为保留值；因此，legacy STA确定该无线帧所指示的邻居AP的信息中的信道信息无效。
本申请实施例第三方面提供了一种无线帧发送装置，应用于WLAN通信，该装置可以为WLAN设备执行，或者，该装置可以为WLAN设备中的部分组件(例如处理器、芯片、或芯片系统等)执行。该装置中的处理单元用于生成无线帧，该无线帧包括第一信息元素，该第一信息元素包括第一字段；其中，该第一信息元素用于承载邻居AP的信息，该第一字段 用于指示该邻居AP的信息中的信道信息，且在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知；该装置中的收发单元用于发送该无线帧。
基于上述技术方案，收发单元所发送的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括用于指示该邻居AP的信息中的信道信息的第一字段；其中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中第一字段的取值设置为第一取值的方式，使得该无线帧的接收方确定邻居AP的信息中的信道信息无效或未告知，避免该无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道上尝试与该邻居进行探测和关联。
本申请实施例第四方面提供了一种无线帧接收装置，应用于WLAN通信，该装置可以为WLAN设备执行，或者，该装置可以为WLAN设备中的部分组件(例如处理器、芯片、或芯片系统等)执行。该装置中的收发单元用于接收无线帧，该无线帧包括第一信息元素，该第一信息元素包括第一字段；其中，该第一信息元素用于承载邻居AP的信息，该第一字段用于指示该邻居AP的信息中的信道信息；该装置中的处理单元用于根据该无线帧确定该邻居AP的信息中的信道信息，其中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知。
基于上述技术方案，收发单元所接收的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括用于指示该邻居AP的信息中的信道信息的第一字段；其中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中第一字段的取值设置为第一取值的方式，使得该无线帧的接收方确定邻居AP的信息中的信道信息无效或未告知，避免该无线帧的接收方中的Legacy STA依据邻居AP的信息中的信道信息去相应信道上尝试与该邻居进行探测和关联。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，该第一字段用于指示该信道信息所对应的信道编号。
基于上述技术方案，在无线帧中，用于指示邻居AP的信息中的信道信息的第一字段具体可以指示该信道信息所对应的信道编号，使得该无线帧的接收方确定邻居AP的信息中的信道信息所对应的信道编号无效或未告知，避免该无线帧的接收方中的Legacy STA依据邻居AP的信息中的信道信息所对应的信道编号在相应信道上尝试与该邻居进行探测和关联。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，该第一字段包括信道编号(Channel Number)字段。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，该第一字段用于指示该信道信息所属的操作类别。
基于上述技术方案，在无线帧中，用于指示邻居AP的信息中的信道信息的第一字段具体可以指示该信道信息所属的操作类别，使得该无线帧的接收方确定邻居AP的信息中的信道信所属的操作类别无效或未告知，避免该无线帧的接收方Legacy STA依据邻居AP的信 息中的信道信息所属的操作类别在相应信道上尝试与该邻居进行探测和关联。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，该第一字段包括操作类别Operating Class字段。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，在该第一字段的取值为该第一取值时，该第一字段还用于指示移除该邻居AP；或，在该第一字段的取值为该第一取值时，该第一字段还用于指示停用该邻居AP。
基于上述技术方案，在该邻居为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居，导致该邻居将不再支持STA的关联。从而，在无线帧中，用于指示邻居AP的信息中的信道信息的第一字段的取值为第一取值时，除了用于指示邻居AP的信息中的信道信息无效或未告知之外，还可以指示该邻居的状态信息，例如指示(将要)移除该邻居或指示(将要)停用该邻居AP。以使得该无线帧的接收方明确该邻居为不可关联的邻居。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，在无线帧中还包括目标字段，该目标字段的取值为第二取值时，该目标字段用于指示移除该邻居AP；或，该目标字段的取值为第二取值时，该目标字段用于指示停用该邻居AP。
基于上述技术方案，在该邻居为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居AP，导致该邻居将不再支持STA的关联。从而，在无线帧中，还包括目标字段，且该目标字段取值为第二取值时指示该邻居的状态信息，例如指示(将要)移除该邻居或指示(将要)停用该邻居AP。以使得该无线帧的接收方明确该邻居为不可关联的邻居。
可选的，该目标字段包括以下至少一项：目标信标帧传输时间信息头(target beacon transmission times information header，TBTT info Header)字段中的保留(Reserved)字段，目标信标帧传输时间信息字段类型(target beacon transmission times informationfield type，TBTT info Field Type)字段等。
可选的，当该目标字段包括TBTT info Header字段中的保留(Reserved)字段时，第一取值为0或1；当该目标字段包括TBTT info Field Type字段时，第一取值为1或2或3。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，该第一信息元素用于指示软AP MLD(soft AP MLD)的非主链路所对应的邻居AP的信息。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，该第一信息元素还包括第二字段，且该第二字段包括第一子字段和第二子字段；其中，该第二字段用于指示邻居对应的基本服务集参数；并且，第二字段所包含的第一子字段用于指示该基本服务集是否期望通过信道透传(on-channel tunneling，OCT)机制与该邻居交换管理类型的媒体接入控制协议数据单元(medium access control protocol data unit，MAC PDU，简称MPDU)，且在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第一子字段用于指示该基本服务集期望通过OCT机制与该邻居交换管理类型的媒体接入控制协议数据单元MPDU；并且，第二字段所包含的第二子字段用于指示该邻居是否开启主动 探测响应，且在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第二子字段用于指示该邻居不开启主动探测响应。
基于上述技术方案，在该邻居为软AP MLD(soft AP MLD)的非主链路所对应的邻居AP的场景下，在无线帧中，用于承载邻居AP的信息的第一信息元素还包括用于指示邻居对应的基本服务集参数的第二字段，其中，该第二字段进一步包括第一子字段和第二子字段。并且，在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第一子字段用于指示该基本服务集期望通过OCT机制与该邻居交换管理类型的MPDU，该第二子字段用于指示该邻居不开启主动探测响应。从而，通过第二字段中第一子字段和第二子字段的设置，可以进一步避免无线帧的接收方依据邻居对应的基本服务集参数与该邻居关联。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，该第二字段为基本服务集参数(basic service set parameter，BSS Parameter)字段，该第一子字段为信道透传推荐(OCT recommended)字段，该第二子字段为非请求探测响应活跃(Unsolicited Probe Response Active)子字段。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，该第一信息元素还包括第三字段，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息，且在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息为未知信息。
基于上述技术方案，在该邻居为软AP MLD(soft AP MLD)的非主链路所对应的邻居AP的场景下，在无线帧中，用于承载邻居AP的信息的第一信息元素还包括用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息的第三字段。并且，在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息为未知信息。从而，通过第三字段的设置，可以进一步避免无线帧的接收方依据该偏置信息与该邻居关联。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，该第一信息元素为精简的邻居汇报元素(Reduced Neighbor Report element)。
本申请实施例第一方面至第四方面的任一方面的一种可能的实现方式中，该无线帧为管理帧。
可选的，该无线帧包括信标(Beacon)帧、探测请求(Probe Request)帧、探测响应(Probe Response)帧、关联请求(Association Request)帧、重新关联请求(Reassociation Request)帧、解除关联(Disassociation)帧、解除认证(Deauthentication)帧、身份认证(Authentication)帧等中的一个或多个。
本申请实施例第五方面提供了一种无线帧发送方法，应用于WLAN通信，该方法由WLAN设备执行，或者，该方法由WLAN设备中的部分组件(例如处理器、芯片、或芯片系统等)执行。在该方法中，WLAN设备首先生成无线帧，该无线帧包括第一信息元素，该第一信息元素包括目标字段；其中，该第一信息元素用于承载邻居AP的信息，该目标字段的取值为第一取值时，该目标字段用于指示移除或停用该邻居AP；此后，该WLAN设备发送该无线帧。
基于上述技术方案，WLAN设备所发送的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括目标字段；其中，在该目标字段的取值为第一取值时，该目标字段用于指示移除或停用该邻居AP。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中目标字段的取值设置为第一取值的方式，使得该无线帧的接收方确定该邻居AP(即将)被移除或(即将)被停用，避免该无线帧的接收方依据邻居AP的信息中的信道信息尝试与该邻居关联。
本申请实施例第六方面提供了一种无线帧接收方法，应用于WLAN通信，该方法由WLAN设备执行，或者，该方法由WLAN设备中的部分组件(例如处理器、芯片、或芯片系统等)执行。在该方法中，WLAN设备接收无线帧，该无线帧包括第一信息元素，该第一信息元素包括目标字段；其中，该第一信息元素用于承载邻居AP的信息；此后，该WLAN设备根据该无线帧确定该邻居AP的信息中的信道信息，其中，在该目标字段的取值为第一取值时，该目标字段用于指示移除或停用该邻居AP。
基于上述技术方案，WLAN设备所接收的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括目标字段；其中，在该目标字段的取值为第一取值时，该目标字段用于指示移除或停用该邻居AP。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中目标字段的取值设置为第一取值的方式，使得该无线帧的接收方确定该邻居AP(即将)被移除或(即将)被停用，避免该无线帧的接收方依据邻居AP的信息中的信道信息尝试与该邻居关联。
需要说明的是，当无线帧接收方法应用于非传统站点(legacy STA)时，非legacy STA基于该无线帧中目标字段的取值设置为第一取值的方式，确定该邻居AP(即将)被移除或(即将)被停用；当无线帧接收方法应用于传统站点(legacy STA)时，基于该无线帧中目标字段的取值设置为第一取值的方式，legacy STA解读得到该第一取值为保留值；因此，legacy STA确定目标字段为无效字段。
本申请实施例第七方面提供了一种无线帧发送装置，应用于WLAN通信，该装置为WLAN设备，或者，该装置为WLAN设备中的部分组件(例如处理器、芯片、或芯片系统等)。该装置包括处理单元和收发单元，首先该处理单元生成无线帧，该无线帧包括第一信息元素，该第一信息元素包括目标字段；其中，该第一信息元素用于承载邻居AP的信息，该目标字段的取值为第一取值时，该目标字段用于指示移除或停用该邻居AP；此后，该收发单元发送该无线帧。
基于上述技术方案，收发单元所发送的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括目标字段；其中，在该目标字段的取值为第一取值时，该目标字段用于指示移除或停用该邻居AP。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中目标字段的取值设置为第一取值的方式，使得该无线帧的接收方确定该邻居AP(即将)被移除或(即将)被停用，避免该无线帧的接收方依据邻居AP的信息中的信道信息尝试与该邻居关联。
本申请实施例第八方面提供了一种无线帧接收装置，应用于WLAN通信，该装置为WLAN设备，或者，该装置为WLAN设备中的部分组件(例如处理器、芯片、或芯片系统等)。该 装置包括处理单元和收发单元，首先，该收发单元接收无线帧，该无线帧包括第一信息元素，该第一信息元素包括目标字段；其中，该第一信息元素用于承载邻居AP的信息；此后，该处理单元根据该无线帧确定该邻居AP的信息中的信道信息，其中，在该目标字段的取值为第一取值时，该目标字段用于指示移除或停用该邻居AP。
基于上述技术方案，收发单元所接收的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括目标字段；其中，在该目标字段的取值为第一取值时，该目标字段用于指示移除或停用该邻居AP。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中目标字段的取值设置为第一取值的方式，使得该无线帧的接收方确定该邻居AP(即将)被移除或(即将)被停用，避免该无线帧的接收方依据邻居AP的信息中的信道信息尝试与该邻居关联。
本申请实施例第五方面至第八方面的任一方面的一种可能的实现方式中，该目标字段包括以下至少一项：
信道编号(Channel Number)字段；或，
操作类别(Operating Class)字段；或，
目标信标帧传输时间信息头(target beacon transmission times information header，TBTT info Header)字段中的保留(Reserved)字段；或，
目标信标帧传输时间信息字段类型(target beacon transmission times informationfield type，TBTT info Field Type)字段。
基于上述技术方案，目标字段可以通过上述多种方式实现，其中，第一取值为上述任意字段的保留值。从而，当无线帧接收方法应用于非传统站点(legacy STA)时，非legacy STA基于该无线帧中目标字段的取值设置为第一取值的方式，确定该邻居AP(即将)被移除或(即将)被停用；当无线帧接收方法应用于传统站点(legacy STA)时，legacy STA基于该无线帧中目标字段的取值设置为第一取值的方式，legacy STA解读得到该第一取值为保留值；因此，legacy STA确定目标字段为无效字段。
可选的，当该目标字段包括信道编号(Channel Number)字段时，第一取值为0；当该目标字段包括操作类别(Operating Class)字段时，第一取值为0或255；当该目标字段包括TBTT info Header字段中的保留(Reserved)字段时，第一取值为0或1；当该目标字段包括TBTT info Field Type字段时，第一取值为1或2或3。
本申请实施例第五方面至第八方面的任一方面的一种可能的实现方式中，该第一信息元素还包括第二字段，且该第二字段包括第一子字段和第二子字段；其中，该第二字段用于指示邻居对应的基本服务集参数；并且，第二字段所包含的第一子字段用于指示该基本服务集是否期望通过信道透传(on-channel tunneling，OCT)机制与该邻居交换管理类型的媒体接入控制协议数据单元(medium access control protocol data unit，MAC PDU，简称MPDU)，且在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第一子字段用于指示该基本服务集期望通过OCT机制与该邻居交换管理类型的媒体接入控制协议数据单元MPDU；并且，第二字段所包含的第二子字段用于指示该邻居是否开启主动探测响应，且在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第二子字段用于指示该邻 居不开启主动探测响应。
基于上述技术方案，在该邻居为软AP MLD(soft AP MLD)的非主链路所对应的邻居AP的场景下，在无线帧中，用于承载邻居AP的信息的第一信息元素还包括用于指示邻居对应的基本服务集参数的第二字段，其中，该第二字段进一步包括第一子字段和第二子字段。并且，在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第一子字段用于指示该基本服务集期望通过OCT机制与该邻居交换管理类型的MPDU，该第二子字段用于指示该邻居不开启主动探测响应。从而，通过第二字段中第一子字段和第二子字段的设置，可以进一步避免无线帧的接收方依据邻居对应的基本服务集参数与该邻居关联。
本申请实施例第五方面至第八方面的任一方面的一种可能的实现方式中，该第二字段为基本服务集参数(basic service set parameter，BSS Parameter)字段，该第一子字段为信道透传推荐(OCT recommended)字段，该第二子字段为非请求探测响应活跃(Unsolicited Probe Response Active)子字段。
本申请实施例第五方面至第八方面的任一方面的一种可能的实现方式中，该第一信息元素还包括第三字段，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息，且在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息为未知信息。
基于上述技术方案，在无线帧中，用于承载邻居AP的信息的第一信息元素还包括用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息的第三字段。并且，在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息为未知信息。从而，通过第三字段的设置，可以进一步避免无线帧的接收方依据该偏置信息与该邻居关联。
本申请实施例第五方面至第八方面的任一方面的一种可能的实现方式中，该第一信息元素为精简的邻居汇报元素(Reduced Neighbor Report element)。
本申请实施例第五方面至第八方面的任一方面的一种可能的实现方式中，该无线帧为管理帧。
可选的，该无线帧包括信标(Beacon)帧、探测请求(Probe Request)帧、探测响应(Probe Response)帧、关联请求(Association Request)帧、重新关联请求(Reassociation Request)帧、解除关联(Disassociation)帧、解除认证(Deauthentication)帧、身份认证(Authentication)帧等中的一个或多个。
本申请实施例第九方面提供了一种通信装置，包括至少一个处理器，该至少一个处理器与存储器耦合；该存储器用于存储程序或指令；该至少一个处理器用于执行该程序或指令，以使该装置实现前述第一方面或第一方面任意一种可能的实现方式的方法，或者，以使该装置实现前述第二方面或第二方面任意一种可能的实现方式的方法，或者，以使该装置实现前述第五方面或第五方面任意一种可能的实现方式的方法，或者，以使该装置实现前述第六方面或第六方面任意一种可能的实现方式的方法。
本申请实施例第十方面提供一种存储一个或多个计算机执行指令的计算机可读存储介质，当计算机执行指令被处理器执行时，该处理器执行如上述第一方面或第一方面任意一 种可能的实现方式的方法，或者，该处理器执行如上述第二方面或第二方面任意一种可能的实现方式的方法，或者，该处理器执行如上述第五方面或第五方面任意一种可能的实现方式的方法，或者，该处理器执行如上述第六方面或第六方面任意一种可能的实现方式的方法。
本申请实施例第十一方面提供一种存储一个或多个计算机的计算机程序产品(或称计算机程序)，当计算机程序产品被该处理器执行时，该处理器执行如上述第一方面或第一方面任意一种可能实现方式的方法，或者，该处理器执行如上述第二方面或第二方面任意一种可能的实现方式的方法，或者，该处理器执行如上述第五方面或第五方面任意一种可能的实现方式的方法，或者，该处理器执行如上述第六方面或第六方面任意一种可能的实现方式的方法。
本申请实施例第十二方面提供了一种芯片系统，该芯片系统包括至少一个处理器，用于支持通信装置实现上述第一方面或第一方面任意一种可能的实现方式中所涉及的功能；或者，用于支持通信装置实现上述第二方面或第二方面任意一种可能的实现方式中所涉及的功能或者，用于支持通信装置实现上述第五方面或第五方面任意一种可能的实现方式中所涉及的功能或者，用于支持通信装置实现上述第六方面或第六方面任意一种可能的实现方式中所涉及的功能。
在一种可能的设计中，该芯片系统还可以包括存储器，用于保存该通信装置必要的程序指令和数据。该芯片系统，可以由芯片构成，也可以包含芯片和其他分立器件。可选的，该芯片系统还包括接口电路，该接口电路为该至少一个处理器提供程序指令和/或数据。
本申请实施例第十三方面提供了一种通信系统，该通信系统包括上述第三方面的通信装置和第四方面的通信装置，和/或，该通信系统包括上述第七方面的通信装置和第八方面的通信装置，和/或，该通信系统包括上述第九方面的通信装置。
其中，第九方面至第十三方面中任一种设计方式所带来的技术效果可参见上述第一方面至第八方面中不同实现方式所带来的技术效果，在此不再赘述。
从以上技术方案可以看出，WLAN设备所收发的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括用于指示该邻居AP的信息中的信道信息的第一字段；其中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知(或在该第一字段的取值为第一取值时，该第一字段用于指示移除该邻居AP或停用该邻居AP)。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中第一字段的取值设置为第一取值的方式，使得该无线帧的接收方确定邻居AP的信息中的信道信息无效或未告知(或确定该邻居AP被移除或该邻居AP被停用)，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道上尝试与该邻居AP进行探测和关联。
附图说明
图1为本申请实施例通信系统的一个示意图；
图2为本申请实施例通信系统的另一个示意图；
图3为本申请实施例提供的无线帧的一个示意图；
图4为本申请实施例提供的无线帧的另一个示意图；
图5为本申请实施例提供的无线帧的一个示意图；
图6为本申请实施例提供的无线帧的另一个示意图；
图7a为本申请实施例提供的通信方法的一个示意图；
图7b为本申请实施例提供的通信方法的一个示意图；
图8为本申请实施例提供的通信装置的一个示意图；
图9为本申请实施例提供的通信装置的另一个示意图。
具体实施方式
本申请中，除特殊说明外，各个实施例之间相同或相似的部分可以互相参考。在本申请中各个实施例、以及各实施例中的各个实施方式/实施方法/实现方法中，如果没有特殊说明以及逻辑冲突，不同的实施例之间、以及各实施例中的各个实施方式/实施方法/实现方法之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例、以及各实施例中的各个实施方式/实施方法/实现方法中的技术特征根据其内在的逻辑关系可以组合形成新的实施例、实施方式、实施方法、或实现方法。以下该的本申请实施方式并不构成对本申请保护范围的限定。
可以理解，本申请实施例中的一些可选的特征，在某些场景下，可以不依赖于其他特征，比如其当前所基于的方案，而独立实施，解决相应的技术问题，达到相应的效果，也可以在某些场景下，依据需求与其他特征进行结合。相应的，本申请实施例中给出的装置也可以相应的实现这些特征或功能，在此不予赘述。
在本申请的描述中，除非另有说明，"多个"是指两个或多于两个。"以下至少一项(个)"或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。
另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了"第一"、"第二"等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解"第一"、"第二"等字样并不对数量和执行次序进行限定，并且"第一"、"第二"等字样也并不限定一定不同。同时，在本申请实施例中，"示例性的"或者"例如"等词用于表示作例子、例证或说明。本申请实施例中被描述为"示例性的"或者"例如"的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用"示例性的"或者"例如"等词旨在以具体方式呈现相关概念，便于理解。
为便于理解本申请实施例提供的方法，下面将对本申请实施例提供的方法的系统架构进行说明。可理解的，本申请实施例描述的系统架构是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定。
本申请提供的技术方案可以适用于WLAN场景，例如可以适用于IEEE 802.11系统标准，例如802.11a/b/g标准、802.11n标准、802.11ac标准、802.11ax标准，或其下一代，例如802.11be标准或更下一代的标准中。
虽然本申请实施例主要以部署WLAN网络，尤其是应用IEEE 802.11系统标准的网络为例进行说明，本领域技术人员容易理解，本申请涉及的各个方面可以扩展到采用各种标准或协议的其它网络，例如，BLUETOOTH(蓝牙)，高性能无线LAN(high performance radio LAN，HIPERLAN)(一种与IEEE 802.1 1标准类似的无线标准，主要在欧洲使用)以及广域网(WAN)、个人区域网(personal area network，PAN)或其它现在已知或以后发展起来的网络。因此，无论使用的覆盖范围和无线接入协议如何，本申请提供的各种方面可以适用于任何合适的无线网络。
本申请实施例还可以适用于物联网(internet of things，IoT)网络或车联网(Vehicle to X，V2X)等无线局域网系统中。当然，本申请实施例还可以适用于其他可能的通信系统，例如，长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th generation，5G)通信系统，以及未来的第六代(6th generation，6G)通信系统等。
上述适用本申请的通信系统仅是举例说明，适用本申请的通信系统不限于此，在此统一说明，以下不再赘述。
本申请实施例所提供的无线帧发送方法及装置，以及无线帧接收方法及装置可以应用于无线通信系统，该无线通信系统可以为无线局域网(wireless local area network，WLAN)或蜂窝网，该方法可以由无线通信系统中的通信设备或通信设备中的芯片或处理器实现，该通信设备可以是一种支持多条链路并行进行传输的无线通信设备，例如，称为多链路设备(multi-link device，MLD)或多频段设备(multi-band device)。相比于仅支持单条链路传输的设备来说，多链路设备具有更高的传输效率和更高的吞吐量。
请参阅图1，为本申请实施例提供的通信系统的一个示意图。需要说明的是，图1所示通信系统中，以本申请所涉及的通信装置(无线帧发送装置或无线帧接收装置)为多链路设备为例进行说明；而在某些实施例中，本申请所涉及的通信装置(无线帧发送装置或无线帧接收装置)还可以为单链路设备，图1所示仅仅为一个示例，不应理解为对本申请的限制。
如图1所示，该通信系统主要包括至少一个多链路接入点设备(Multi-link AP device)以及至少一个多链路非接入点站点设备(Multi-link non-AP STA device)(简称为多链路站点设备)，其中，多链路接入点设备和多链路站点设备可以统称为多链路设备。下面将对多链路设备进行介绍。
一般的，多链路设备包括一个或多个隶属的站点(affiliated station，记为affiliated STA)，隶属的STA是一个逻辑上的站点，可以工作在一条链路上。其中，隶属的站点可以为接入点(access point，AP)或非接入点站点(non-access point station，non-AP STA)。为描述 方便，本申请将隶属的站点为AP的多链路设备可以称为多链路AP或多链路AP设备(multi-link AP device)或AP多链路设备(AP multi-link device)，隶属的站点为non-AP STA的多链路设备(multi-link non-AP STA device)可以称为多链路STA或多链路STA设备或STA多链路设备(STA multi-link device)。为描述方便，“多链路设备包括隶属STA”在本申请实施例中也简要描述为“多链路设备包括STA”。
值得注意的是，多链路设备包括多个逻辑站点，每个逻辑站点工作在一条链路上，但允许多个逻辑站点工作在同一条链路上。下文的提到的链路标识表征的是工作在一条链路上的一个站点，也就是说，如果一条链路上有多于1个站点，则需要多于1个链路标识表征他们。下文的提到的链路有时也表示工作在该条链路上的站点。
多链路AP设备与多链路STA在数据传输时，可以采用链路标识来标识一条链路或一条链路上的站点。在通信之前，多链路AP设备与多链路STA设备可以先协商或沟通链路标识与一条链路或一条链路上的站点的对应关系。因此在数据传输中，不需要传输大量的信令信息用来指示链路或链路上的站点，携带链路标识即可，降低了信令开销，提升了传输效率。
一个示例中，多链路AP设备在建立BSS时，发送的管理帧，比如信标(beacon)帧，会携带一个包括多个链路标识信息字段的元素，每个链路标识信息字段可以建议一个链路标识与工作在一个链路上的站点的对应关系。每个链路标识信息字段包括链路标识，还包括：介质接入控制(medium access control，MAC)地址，操作集，信道号中的一个或多个，其中MAC地址，操作集，信道号中的一个或多个可以指示一条链路；另一个示例中，在多链路建立关联过程中，多链路AP设备和多链路站点设备协商多个链路标识信息字段。在后续的通信中，多链路AP设备或者多链路站点设备会通过使用链路标识来表征多链路设备中的一个站点，链路标识还可以表征该站点的MAC地址，工作的操作集，信道号中的一个或多个属性。其中MAC地址，也可以换成关联后多链路AP设备的关联标识。
如果是多个站点工作在一条链路上，那么链路标识(是一个数字的ID)，表征的意义除了包括链路所在的操作集，信道号，还包括工作在该链路上的站点标识，比如站点的MAC地址或者AID。
多链路设备可以遵循802.11系列协议实现无线通信，例如，遵循极高吞吐率(extremely high throughput，EHT)站点，或遵循基于802.11be或兼容支持802.11be的站点，实现与其他设备的通信，当然其他设备可以是多链路设备，也可以不是多链路设备。
本申请涉及的non-AP MLD可以为无线通讯芯片、无线传感器或无线通信终端。例如支持Wi-Fi通讯功能的用户终端、用户装置，接入装置，订户站，订户单元，移动站，用户代理，用户装备，其中，用户终端可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、物联网(internet of things，IoT)设备、计算设备或连接到无线调制解调器的其它处理设备，以及各种形式的用户设备(user equipment，UE)，移动台(mobile station，MS)，终端(terminal)，终端设备(terminal equipment)，便携式通信设备，手持机，便携式计算设备，娱乐设备，游戏设备或系统，全球定位系统设备或被配置为经由无线介质进行网络通信的任何其他合适的设备等。此外，non-AP MLD可以支持802.11be制式或者 802.11be的下一代WLAN制式。non-AP MLD也可以支持802.11ax、802.11ac、802.11n、802.11g、802.11b及802.11a等多种WLAN制式。
本申请实施例涉及的AP MLD可以为一种部署在无线通信网络中为其关联的non-AP提供无线通信功能的装置，主要部署于家庭、大楼内部以及园区内部，典型覆盖半径为几十米至上百米，当然，也可以部署于户外。AP MLD相当于一个连接有线网和无线网的桥梁，主要作用是将各个无线网络客户端连接到一起，然后将无线网络接入以太网。具体的，AP MLD可以是带有Wi-Fi芯片的基站、路由器、网关、中继器，通信服务器，交换机或网桥等通信设备，其中，该基站可以包括各种形式的宏基站，微基站，中继站等。此外，AP MLD可以支持802.11be制式或者802.11be的下一代WLAN制式。AP MLD也可以支持802.11ax、802.11ac、802.11n、802.11g、802.11b及802.11a等WLAN制式。
上述内容简要阐述了本申请实施例的系统架构，为更好地理解本申请实施例的技术方案，下面将介绍与本申请实施例相关的几个内容。
一、多链路合作技术
目前，WLAN可工作在低频频率包括子(sub)频段1吉赫兹(GHz)，2.4GHz，5GHz和6GHz等。802.11ax(WiFi 6)及之前的多频段的WiFi虽然配置多链路，但通常来说，每个多链路建立不同的基本服务集(basic service set，BSS)，一个时刻只能在一个链路跟该链路所归属的BSS内的站点通信，每条链路的操作缺乏足够的合作。
IEEE 802.11下一代WiFi极高吞吐量(extremely high throughput，EHT)协议中除了新频段6Ghz上超大带宽传输信息包，也可以使用多链路合作技术把不连续的多链路聚合起来形成超大带宽。多链路合作技术除了聚合更大的带宽，还可以共享多链路上的MAC层，实现灵活的传输消息包，或者同时发送同一种业务的消息包给同一个站点。下面将能实现多链路合作技术的设备称为多链路设备。AP多链路设备和站点多链路设备可以通过在一条链路上进行关联建立，从而快速实现多条链路进行关联建立。
对于non-AP MLD来说，其可以通过在其中一条链路(link)进行多链路建立操作来实现与AP MLD的多条链路同时建立关联。其中，进行多链路关联请求/响应(Multi-link Association Request/Response)帧交换的链路称之为传输链路(Transmitted Link)，相应的其他link称之为非传输链路(Non-transmitted Link)。对于Multi-link Association Request/Response帧而言，其会携带多条link的信息以实现同时进行多条链路的关联。
结合上图1，多链路建立的流程描述如下：
步骤1.non-AP MLD在链路1(Link 1)上发送一个Association Request帧，其中除了携带Link 1的STA侧信息外，还携带有链路2(Link 2)的STA侧相关信息。其中，Link 1称之为Transmitted Link，link 2被称之为Non-transmitted Link。
步骤2.AP MLD在Link 1上回一个Association Response帧给Non-AP MLD，其中除了携带Link 1的STA侧信息外，还携带有Link 2的AP侧相关信息。
从而，Non-AP的STA 1和STA 2分别与AP MLD的AP 1和AP 2建立起关联。为了在已有的Association Request帧中携带non-AP MLD相关信息，协议中定义了多链路元素 (multi-link element，MLE)，其采用继承模型格式来携带MLD的相关信息，类似于现有协议中多基本服务集标识元素(Multi-BSSID element)。
由上述过程可得，多链路设备(Multi-link Device，MLD)也可以是指该设备同时具有多个射频模块，分别工作在不同频段/信道上。当一个设备内两个射频模块所工作的信道间距足够大，则可以相互不干扰，可以独立的运行。如果任意两条链路之间是支持在一条链路上发送的同时，另一条链路在接收，我们称之为该两条链路之间是支持同时收发(simultaneous transmit/receive，STR)能力的，否则称之为该两条链路之间是非同时收发(Non-STR，NSTR)的。一般认为，在802.11be中，除了软件定义的多链路AP设备(Soft AP MLD)外，其他AP MLD都可以支持STR。
每个AP MLD除了每条link有各自的介质接入控制地址(medium access control address，MAC Address)之外，AP MLD还有一个介质接入控制服务访问点地址(medium access control service access point address，MAC SAP Address)，如图2所示。此外，Soft AP MLD可以理解为利用软件在non-AP MLD设备上实现AP MLD的功能。常用的场景是将手机、平板电脑等终端设置成一个Soft AP MLD，允许其他设备进行关联。
此外，除了上述多链路建立的流程，多链路接入点设备和多链路站点设备之间还可以通过多种无线帧进行通信，例如关联请求帧、重关联请求帧、关联响应帧、重关联响应帧、探测响应帧等，其中，不同的无线帧都可以携带有MLE，用以通过MLE承载多链路设备的站点信息。其中，MLE也可以称为多链路信息单元。
如图3所示，为MLE的帧结构的一个示意图。其中，MLE包括元素标识(Element ID)字段(例如，取值可以为图3所示的255)、长度值(Length)字段、元素标识扩展(Element ID Extension)字段、多链路控制(Multi-Link Control)字段、公共信息(Common Info)字段和链路信息(Link Info)字段。其中，Common Info字段携带多链路设备中多个站点的共同的信息，以及多链路设备本身的信息；Link Info字段携带多链路设备中每条链路上的站点的信息；Multi-Link Control字段携带多链路元素的类型，以及Common Info中哪些字段出现(present)及哪些字段不出现的指示信息。
进一步的，如图3所示，该Link Info字段还可以包括一个或多个每个-站点简介(Per-STA Profile)字段，图3中以Per-STA Profile字段数量为x(x大于1)为例。其中，每个Per-STA Profile字段还可以进一步包括子元素标识(Subelement ID)字段(例如，取值可以为图3所示的0)、长度值(Length)字段、数据(Data)字段。
进一步的，如图3所示，Data字段还可以包括站点控制(STA Control)字段、站点信息(STA Info)字段、站点简介(STA Profile)字段。
进一步的，如图3所示，STA Profile字段包括多个字段或域(field)，图3中以field数量为m(x大于1)为例；STA Profile字段还包括多个元素(Element)，图3中以Element数量为n(n大于1)为例。此外，STA Profile字段还包括可能存在的(if present)非继承元素(Non-inheritance element)。
二、AP发现过程
在WLAN通信过程中，STA要想与一个AP进行关联建立连接，首先需要通过扫描来发现该AP的存在。扫描有两种形式：主动扫描和被动扫描。
被动扫描是一种通过接收信道上AP发送的管理帧，比如beacon帧或者广播的探测响应帧。具体来讲，STA在不同的信道上跳转来搜寻AP发送的信标(Beacon)帧。一旦STA通过Beacon帧获得了AP的相关信息，其就可以进一步通过探测请求/响应(Probe Request/Response)帧交换从AP获得其他额外信息。
主动扫描是指STA可以在未监听到Beacon帧的情况下主动发送一个广播的探测请求，收到广播的探测请求的AP如果满足一定条件可以发起随机信道接入来回探测响应。
其中，为了辅助STA进行快速扫描，AP会在其Beacon帧和Probe response帧中携带精简的邻居汇报元素(Reduced Neighbor Report element)来避免STA不停地扫描信道，减少STA的扫描时间。
三、精简的邻居汇报元素(Reduced Neighbor Report element)
AP通过在管理帧，比如信标帧，探测响应帧，携带精简邻居汇报元素。STA站点扫描时，接收AP发送的关联帧，从而获得周围的AP的信息，然后选择合适的AP进行关联。
需要说明的是，本实施例及后续实施例中，邻居AP具体可以为发送该精简的邻居汇报元素(Reduced Neighbor Report element)的AP(此处记为目标AP)周围的AP。例如，邻居AP为该目标AP所在的AP MLD中其他链路上的AP；又如，邻居AP为该目标AP邻近APs；又如，邻居AP为该目标AP的工作区域内所侦测到的其他AP；又如，邻居AP为与该目标AP共位置(Co-located)的AP；又如，邻居AP为与当前affiliated AP同属于同一个AP MLD的其他affiliated AP；或者是其他定义，此处不作具体的限定。
具体来讲：精简的邻居汇报元素(Reduced Neighbor Report element)用于指示在某个信道上的一个或多个邻居AP的信息。其帧格式如图4所示，包括该元素的元素标识符(Element ID)和指示所携带的信息长度的长度(Length)值；并且，在每一个Reduced Neighbor Report element中会携带一个或者多个邻居AP信息(Neighbor AP info)字段。其中，邻居AP信息字段也可以简称为邻居AP的信息字段。下面将结合图4对每一个邻居AP的信息字段所包含的信息进行描述，其中，每一个邻居AP的信息字段包括如下信息：
1.对于目标信标帧传输时间信息头(target beacon transmission times information header，TBTT info Header)字段，携带以下信息：
a.目标信标帧传输时间信息字段类型(target beacon transmission times information field type，TBTT info Field Type)字段：指示目标信标帧传输时间信息(target beacon transmission times information，TBTT info)的类型。其与TBTT info长度(length)字段一起指示TBTT info字段的格式；在该字段中，值1，2和3为保留值。
b.过滤的邻居AP(Filtered neighbor AP)字段：指示该Neighbor AP info字段中所携带的所有BSS的服务集标识(service set ID，SSID)是否与Probe Request帧中的SSID相匹配。
c.保留(Reserved)字段所占用的比特位为第三比特位(Bit 3)，且所占用的比特数为1比特(bit)。
d.TBTT info个数(count)字段：指示TBTT info set中含有TBTT info字段(field)的个数。
e.TBTT info Length字段：指示每个TBTT info field的长度。不同长度下所携带的具体信息格式如下表1所示：
表1
Figure PCTCN2022107850-appb-000001
2.对于操作类别(Operating Class)字段：指示汇报的邻居AP的工作信道所属的操作类别。在该字段中，值0和255等其他值为保留值。
3.对于信道编号(Channel Number)字段：指示汇报的邻居AP的工作信道所对应的信道编号。在该字段中，信道编号0为保留值。并且，STA端通过Operating Class字段和Channel Number字段可以确定AP的信道在频带上的具体位置。
4.对于TBTT信息集合(TBTT info set)字段：包括一个或多个TBTT info字段。并且，每个TBTT info字段的帧格式可以通过图5所示方式实现，如图5所示，每一个TBTT info字段可以包括如下信息：
a.邻居AP的目标信标传输时间偏置(Neighbor AP TBTT offset)字段：指示该上报邻居AP的BSS与发送该Report的BSS的Beacon发送时间的偏置，单位为时间单元(time unit，TU)，即1024微秒或者1毫秒。其中，值254表示offset为254Tus或者更高；值255表示不知道具体的offset。该字段所占用的比特数可以为1个。
b.BSS标识符(BSSID)字段：指示该上报的BSS所对应的BSS标识符。该字段所占用的字节数可以为0个或6个。其中，该字段为可选(optional)字段。
c.短服务集标识(Short SSID)字段：指示该BSS所属的服务集标识符。该字段所占用的字节数可以为0个或4个。其中，该字段为可选(optional)字段。
d.BSS参数(BSS Parameter)字段：指示该BSS的相关参数，该字段所占用的字节数可以为0个或1个。其中，该字段为可选(optional)字段。
如图6所示，BSS参数具体包含以下指示信息：
比特位0：信道透传推荐(OCT recommended)字段：指示该上报的BSS期望通过OCT机制与其交换管理类型的MPDU。
比特位1：相同服务集标识(Same SSID)字段：指示该上报的邻居AP和传输该Report的AP是否具有相同的SSID。
比特位2：多基本服务集标识(Multiple BSSID)字段：指示该上报的邻居AP是不是属于某个multiple BSSID集合的一部分。
比特位3：已发送的基本服务集标识(Transmitted BSSID)字段：如果该上报的邻居AP是属于某个multiple BSSID集合的一部分，则进一步指示该上报的邻居AP是Transmitted BSSID还是non-transmitted BSSID。
比特位4：与2.4/5GHz AP共位置且为扩展服务集成员(Member Of ESS With 2.4/5GHz Co-Located AP)字段：指示该上报的邻居AP是否与一个2.4/5GHz AP共位置(即是不是6GHz only的AP)且是一个扩展服务集的成员。
比特位5：非请求探测响应活跃(Unsolicited Probe Response Active)字段：指示该上报的邻居AP是否开启主动探测响应。
比特位6：共位置的AP(Co-located AP)字段：指示该上报的邻居AP与传输该Report的AP是否是共位置的。
比特位7：保留(Reserved)值。
e.20MHz功率谱密度(power spectral density，PSD)字段：指示最大的发射功率谱密度。其中，该字段为可选(optional)字段。该字段所占用的字节数可以为0个或1个。
f.多链路设备参数(MLD Parameters)字段：指示MLD的相关参数，该字段所占用的字节数可以为0个或3个。具体包含以下子字段：
多链路设备标识符(MLD ID)子字段，占用8bits且指示AP MLD的标识符；链路标识符(Link ID)子字段，占用4bits且指示汇报的邻居AP所对应的链路标识符；BSS参数更新计数器(BSS Parameters Change Count)子字段，占用8bits且指示BSS参数更新计数器。当汇报AP发生一个关键更新，则BSS参数更新计数器会增大，否则，保持不变。保留(Reserved)子字段，占用4bits。
然而，当前的精简的邻居汇报元素(Reduced Neighbor Report element)的帧格式设计中，并未考虑是否所有的邻居都必然支持与STA进行关联。而在实际应用中，并非所有的邻居都必然支持与STA进行关联。例如，当某个邻居为软AP MLD(soft AP MLD，也可以 称为软件定义的AP MLD)的非主链路所对应的邻居AP的场景下，需要避免Legacy STA通过读取精简的邻居汇报元素并切换到相应信道上尝试与非主链路的AP进行探测和关联操作；又如，当某个邻居为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居，导致该邻居将不再支持STA的关联。下面将分别对这两种实现示例进行介绍。
一种实现示例中，对应于某个邻居为软AP(soft AP)的场景。
目前，802.11be正在讨论Soft AP MLD的相关操作。由于Soft AP MLD是非同时收发(NSTR)的，所以其操作与普通的STR的AP MLD操作有所不同。对于Soft AP MLD，其链路可以分为主链路(Primary Link)，每个soft AP MLD只有一条主链路，其余链路称为非主链路(non-primary link)。Soft AP MLD只在主链路上发送Beacon信标帧，在非主链路上不发Beacon帧；非主链路不允许传统站点(legacy STA)的关联，即使legacy STA在该链路上发送一个广播的Probe Request帧，soft AP MLD也不会回Probe Response帧。对于non-AP MLD，其只允许在主链路上发送多链路Probe Request帧来获取非主链路端的附属接入点(affiliated AP)信息。
需要说明的是，本实施例及后续实施例所提及的传统站点(legacy STA)指的是802.11be之前的标准中规定的STA，例如802.11a/b/g标准、802.11n标准、802.11ac标准、802.11ax标准等规定的STA。相应的，非传统站点指的是802.11be及之后标准中规定的STA。
此外，AP MLD需要通过Beacon帧中的Reduced Neighbor Report element来广播与当前affiliated AP同属于同一个AP MLD的其他affiliated AP的信息。但是对于soft AP MLD来说，其一方面需要在主链路通过beacon帧中的Reduced Neighbor Report element来广播其他非主链路端的affiliated AP信息，但另一方面，其需要避免legacy STA通过读懂Reduced Neighbor Report element，然后切换到非主链路上发送Probe Request。
当前有一种解决方案是将对应非主链路的Reduced Neighbor Report element中的TBTT info Field Type字段设置为保留值，这样legacy STA就读不懂后面的TBTT info字段。然而，该解决方案仍然存在一定风险，即Legacy STA虽然读不懂TBTT info字段，但是依然能通过Operating Class字段和Channel Number字段获得信道信息，然后跳转到非主链路上发送Probe Request帧，继而干扰Soft AP MLD的正常操作。
另一种实现示例中，对应于某个邻居为多链路设备中的某一链路上的AP的场景。
目前，802.11be还在讨论AP MLD可以停用(disable)掉某个affiliated AP或者说移除(remove)掉某个affiliated AP，而不影响AP MLD的其余链路。例如，AP MLD具有3条链路，link 1，Link2和Link 3。当AP MLD处于某种原因(例如降低功耗等)要disable或者remove掉link 3时，可以在Link 1和Link 2上的Beacon帧的相应Reduced Neighbor Report element进行提前告知，这样非关联的non-AP MLD就不会再Probe(探测)Link 3所对应的affiliated AP信息。
当前有一种解决方案是利用Reduced Neighbor Report element中的Reserved比特来指示。然而，该解决方案的缺点是Legacy STA读不懂新增的比特指示信息，其仍然有可能切换到Link 3上发送Probe Request帧。
综上所述，如何避免STA接入不支持与STA进行关联的邻居AP，是一个亟待解决的技术问题。
为此，本申请提供了一种无线帧发送方法及装置、无线帧接收方法及装置，用于在无线帧中的第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知(或在该第一字段的取值为第一取值时，该第一字段用于指示移除该邻居AP或停用该邻居AP)。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中第一字段的取值设置为第一取值的方式，使得该无线帧的接收方确定邻居AP的信息中的信道信息无效或未告知(或确定该邻居AP被移除或该邻居AP被停用)，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道上尝试与该邻居AP进行探测和关联。下面将结合附图对本申请提供的多种解决方案进行描述。
请参阅图7a，为本申请实施例提供的一种通信方法的一个示意图，该方法包括如下步骤。可以理解的是，如图7a所示，该通信方法涉及无线帧的传输；因此，该通信方法也可以称为无线帧发送方法，或称为无线帧接收方法。
S101.无线帧发送装置生成无线帧，该无线帧包括第一字段，且在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知。
本实施例中，无线帧发送装置生成无线帧，该无线帧包括第一信息元素，第一信息元素包括第一字段；其中，该第一信息元素用于承载邻居AP的信息，该第一字段用于指示该邻居AP的信息中的信道信息，且在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知。
需要说明的是，在本实施例及后续实施例中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知这一表述，还可以表述为在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效；还可以表述为在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息未指示；还可以表述为在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息不支持关联；还可以表述为在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息不支持接入等。
可选的，在步骤S101所生成的无线帧中，该无线帧所包含的第一信息元素为精简的邻居汇报元素(Reduced Neighbor Report element)，且第一信息元素的帧格式可以参考前述图4至图6的描述，此处不再赘述。
在一种可能的实现方式中，该第一字段用于指示该信道信息所对应的信道编号。具体的，在步骤S101所生成的无线帧中，用于指示邻居AP的信息中的信道信息的第一字段具体可以指示该信道信息所对应的信道编号，使得该无线帧的接收方确定邻居AP的信息中的信道信息所对应的信道编号无效或未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息的信道编号在相应信道上尝试与该邻居AP进行探测和关联。
可选的，该第一字段包括信道编号(Channel Number)字段。其中，Channel Number字段的实现可以参考前述图4所示相关描述内容，此处不再赘述。此外，本实施例中，为了 尽可能得使得本申请可以兼容802.11be之前的标准(802.11ax、802.11ac、802.11n、802.11g、802.11b及802.11a)中的定义，在第一字段包括Channel Number字段时，可以选用Channel Number字段中的一些保留值作为第一取值。例如，第一取值可以为保留值0，使得将Channel Number字段取值置为0时，该Channel Number字段指示邻居AP的信息中的信道信息所对应的信道编号无效或未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息的信道编号在相应信道上尝试与该邻居AP进行探测和关联。
此外，对于legacy STA而言，其所遵从的标准为802.11be之前的标准，由于第一字段的取值为保留值，使得legacy STA无法基于该保留值获取得到准确的信道信息所对应的信道编号。因此，若步骤S101所生成的无线帧的接收方为legacy STA，则legacy STA将无法基于该第一字段获取得到邻居AP的信息中的信道信息所对应的信道编号，也就可以避免该legacy STA依据邻居AP的信息中的信道信息所对应的信道编号与该邻居关联。
在一种可能的实现方式中，该第一字段用于指示该信道信息所属的操作类别。具体的，在步骤S101所生成的无线帧中，用于指示邻居AP的信息中的信道信息的第一字段具体可以指示该信道信息所属的操作类别，使得该无线帧的接收方确定邻居AP的信息中的信道信所属的操作类别无效或未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息所述的操作类别在相应信道上尝试与该邻居AP进行探测和关联。
可选的，该第一字段包括操作类别(Operating Class)字段。其中，Operating Class字段的实现可以参考前述图4所示相关描述内容，此处不再赘述。此外，本实施例中，为了尽可能得使得本申请可以兼容802.11be之前的标准(802.11ax、802.11ac、802.11n、802.11g、802.11b及802.11a)中的定义，在第一字段包括Operating Class字段时，可以选用Operating Class字段中的一些保留值作为第一取值。例如，第一取值可以为保留值0或255，使得将Operating Class字段取值置为0或255时，该Operating Class字段指示邻居AP的信息中的信道信所属的操作类别无效或未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道所述的操作类别上尝试与该邻居AP进行探测和关联。
此外，对于legacy STA而言，其所遵从的标准为802.11be之前的标准，由于第一字段的取值为保留值，使得legacy STA无法基于该保留值获取得到准确的信道信息所属的操作类别。因此，若步骤S101所生成的无线帧的接收方为legacy STA，则legacy STA将无法基于该第一字段获取得到邻居AP的信息中的信道信息所属的操作类别，也就可以避免该legacy STA依据邻居AP的信息中的信道信息所属的操作类别与该邻居关联。
由前述描述可知，第一字段可以包括Channel Number字段，第一字段也可以包括Operating Class字段；而在实际应用中，第一字段还可以同时包括Channel Number字段和Operating Class字段。从而，将Channel Number字段和Operating Class字段这两个字段的整体作为第一字段实现。此外，本实现方式中，Channel Number字段对应的第一取值和Operating Class字段对应的第一取值可以是相同的，也可以是不同的，此处不做限定。
例如，在步骤S101所生成的无线帧中，第一字段同时包括Channel Number字段和Operating Class字段时，Channel Number字段对应的第一取值和Operating Class字段对应的第一取值均为0；此时，步骤S101所生成的无线帧中的第一字段用于指示邻居AP的信息中的 信道信息无效或未告知，或者，步骤S101所生成的无线帧中的第一字段用于指示邻居AP的信息中的信道信息所对应的信道编号无效或未告知且邻居AP的信息中的信道信所属的操作类别无效或未告知。
又如，在步骤S101所生成的无线帧中，第一字段同时包括Channel Number字段和Operating Class字段时，Channel Number字段对应的第一取值为0且Operating Class字段对应的第一取值为255；此时，步骤S101所生成的无线帧中的第一字段用于指示邻居AP的信息中的信道信息无效或未告知，或者，步骤S101所生成的无线帧中的第一字段用于指示邻居AP的信息中的信道信息所对应的信道编号无效或未告知，且邻居AP的信息中的信道信息所属的操作类别无效或未告知。
此外，对于legacy STA而言，其所遵从的标准为802.11be之前的标准，由于第一字段的取值为保留值，使得legacy STA无法基于该保留值获取得到准确的信道信息所属的操作类别以及信道信息所对应的信道编号。因此，若步骤S101所生成的无线帧的接收方为legacy STA，则legacy STA将无法基于该第一字段获取得到邻居AP的信息中，信道信息所对应的信道编号以及信道信息所属的操作类别，也就可以避免该legacy STA依据邻居AP的信息中的信道编号以及信道信息所属的操作类别与该邻居AP关联。
在一种可能的实现方式中，在该第一字段的取值为该第一取值时，该第一字段还用于指示移除该邻居AP；或，在该第一字段的取值为该第一取值时，该第一字段还用于指示停用该邻居AP。具体的，在步骤S101所生成的无线帧中，在该邻居AP为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居AP，导致该邻居AP将不再支持STA的关联。从而，在步骤S101所生成的无线帧中，用于指示邻居AP的信息中的信道信息的第一字段的取值为第一取值时，除了用于指示邻居AP的信息中的信道信息无效或未告知之外，还可以指示该邻居AP的状态信息，例如指示(将要)移除该邻居AP或指示(将要)停用该邻居AP。以使得该无线帧的接收方明确该邻居AP为不可关联的邻居AP。
在一种可能的实现方式中，该第一信息元素用于指示在非主链路上的邻居AP的信息。具体的，在该邻居AP为软AP MLD(soft AP MLD)的非主链路所对应的邻居AP的场景下，需要避免Legacy STA通过读取精简的邻居汇报元素并切换到相应信道上尝试与非主链路的AP进行探测和关联操作。
在一种可能的实现方式中，该第一信息元素还包括第二字段，且该第二字段包括第一子字段和第二子字段；其中，该第二字段用于指示邻居AP对应的基本服务集参数；并且，第二字段所包含的第一子字段用于指示该基本服务集是否期望通过信道透传(on-channel tunneling，OCT)机制与该邻居AP交换管理类型的介质接入控制协议数据单元(medium access control protocol data unit，MAC PDU，简称MPDU)，且在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第一子字段用于指示该基本服务集期望通过OCT机制与该邻居交换管理类型的介质接入控制协议数据单元MPDU；并且，第二字段所包含的第二子字段用于指示该邻居是否开启主动探测响应，且在该第一字段用于指示该邻 居AP的信息中的信道信息无效或未告知时，该第二子字段用于指示该邻居AP不开启主动探测响应。
具体的，在该邻居AP为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD)的非主链路所对应的邻居AP的场景下，在步骤S101所生成的无线帧中，用于承载邻居AP的信息的第一信息元素还包括用于指示邻居对应的基本服务集参数的第二字段，其中，该第二字段进一步包括第一子字段和第二子字段。并且，在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第一子字段用于指示该基本服务集期望通过OCT机制与该邻居交换管理类型的MPDU，该第二子字段用于指示该邻居不开启主动探测响应。从而，通过第二字段中第一子字段和第二子字段的设置，可以进一步避免无线帧的接收方依据邻居对应的基本服务集参数与该邻居关联。
在一种可能的实现方式中，该第二字段为基本服务集参数(basic service set parameter，BSS Parameter)字段，该第一子字段为信道透传推荐(OCT recommended)字段，该第二子字段为非请求探测响应活跃(Unsolicited Probe Response Active)子字段。其中，第二字段以及第二字段中的第一子字段和第二子字段的描述可以参考前述图5和图6所示相关描述，此处不再赘述。
在一种可能的实现方式中，该第一信息元素还包括第三字段，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息，且在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第三字段用于指示该邻居AP对应的基本服务集的信标帧发送时间的偏置信息为未知信息。具体的，在该邻居AP为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD)的非主链路所对应的邻居AP的场景下，在步骤S101所生成的无线帧中，用于承载邻居AP的信息的第一信息元素还包括用于指示该邻居AP对应的基本服务集的信标帧发送时间的偏置信息的第三字段。并且，在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第三字段用于指示该邻居AP对应的基本服务集的信标帧发送时间的偏置信息为未知信息。从而，通过第三字段的设置，可以进一步避免无线帧的接收方依据该偏置信息与该邻居AP关联。其中，第三字段的描述可以参考前述图5和图6所示相关描述，此处不再赘述。
在一种可能的实现方式中，在步骤S101所生成的无线帧为管理帧。可选的，该无线帧包括信标(Beacon)帧、探测请求(Probe Request)帧、探测响应(Probe Response)帧、关联请求(Association Request)帧、重新关联请求(Reassociation Request)帧、解除关联(Disassociation)帧、解除认证(Deauthentication)帧、身份认证(Authentication)帧等中的一个或多个。
S102.无线帧发送装置发送无线帧。
本实施例中，无线帧发送装置在步骤S101生成无线帧之后，该无线帧发送装置在步骤S102中发送无线帧；相应的，无线帧接收装置在步骤S102中接收无线帧。
示例性的，无线帧发送装置和无线帧接收装置在步骤S102中可以基于前述图1或图2所示通信系统进行无线帧的传输，即通过无线帧发送装置与无线帧接收装置之间的多条链路中的一条或多条链路传输该无线帧。
可选的，无线帧发送装置可以对该无线帧进行发送预处理，并将发送预处理得到的处理结果在步骤S102中发送；例如，该发送预处理可以包括加密、加扰等方式。相应的，无线帧发送装置可以接收对该无线帧进行发送预处理得到的处理结果，并在步骤S102中将该处理结果进行接收预处理得到无线帧；例如，该接收预处理可以包括解密、解扰等方式。
S103.无线帧接收装置基于无线帧中的第一字段确定邻居AP的信息中的信道信息无效或未告知。
本实施例中，无线帧接收装置基于步骤S102接收的无线帧确定邻居AP的信息中的信道信息。
具体的，无线帧接收装置在步骤S103中，可以依据所接收得到的无线帧中的第一信息元素中用于指示该邻居AP的信息中的信道信息的第一字段的取值，确定邻居AP的信息中的信道信息。需要说明的是，当无线帧接收方法应用于非传统站点(legacy STA)时，即该无线帧接收装置为非legacy STA时，非legacy STA基于该无线帧中第一字段的取值设置为第一取值的方式，确定该无线帧所指示的邻居AP的信息中的信道信息未告知；此外，非legacy STA还可以基于其他消息/信息元素/字段获取得到该邻居AP的信息中的信道信息，例如高吞吐量操作元素(HT Operation element)中的主信道(Primary Channel)字段。当无线帧接收方法应用于传统站点(legacy STA)时，即该无线帧接收装置为legacy STA时，legacy STA基于该无线帧中第一字段的取值设置为第一取值的方式，legacy STA解读得到该第一取值为保留值；因此，legacy STA确定该无线帧所指示的邻居AP的信息中的信道信息无效。
具体地，由于本申请应用于支持IEEE 802.11ax下一代WiFi协议，如802.11be，或EHT等相关协议的无线局域网系统，对于运行在802.11be或EHT等相关协议的STA而言，其所遵从的标准为802.11be及之后标准，使得STA可以读取得到该第一字段的取值为第一取值时的含义。从而，STA作为步骤S103中的无线帧接收装置，可以在该无线帧中的第一信息元素中用于指示该邻居AP的信息中的信道信息的第一字段的取值确定邻居AP的信息中的信道信息；并且，在该第一字段的取值为第一取值时，该STA确定邻居AP的信息中的信道信息无效或未告知。
此外，对于legacy STA而言，其所遵从的标准为802.11be之前的标准，由于第一字段的取值为保留值，使得legacy STA无法基于该保留值获取得到准确的邻居AP的信道信息。从而，legacy STA作为步骤S103中的无线帧接收装置，可以在该无线帧中的第一信息元素中用于指示该邻居AP的信息中的信道信息的第一字段的取值确定邻居AP的信息中的信道信息；并且，在该第一字段的取值为第一取值时，该legacy STA确定该第一字段的取值为保留值，该legacy STA由于无法识别该第一字段的含义而无法确定邻居AP的信息中的信道信息。从而，该legacy STA确定邻居AP的信息中的信道信息无效。
一种实现方式中，在无线帧中第一信息元素所指示的邻居AP为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD)的非主链路所对应的邻居AP。
对于non-AP MLD(即无线帧接收装置)来说，其获得非主链路所对应的Affiliated AP信息是通过在主链路上发送多链路Probe Request帧。而在Soft AP MLD所回的多链路Probe Response帧中，其可以通过HT Operation element(高吞吐量操作元素)中的Primary Channel 字段来指示非主链路的Channel Number信息。所以，将Reduced Neighbor Report element中的Channel Number字段设置为一个特殊的保留值，如0，不会对non-AP MLD的后续操作带来任何影响。同时，legacy STA就无法通过Reduced Neighbor Report element来获得信道信息，进而避免其切换到非主链路上发送Probe Request帧。
一种实现方式中，在无线帧中第一信息元素所指示的邻居AP为多链路设备中的某一链路上的AP的场景下。
当AP MLD想disable掉某个Affiliated AP或者Remove掉某个Affiliated AP时，可以在其他链路上的Beacon中通过Reduced Neighbor Report element来提前告知non-AP MLD(即无线帧接收装置)，同时需要避免legacy STA切换到即将移除的Affiliated AP所在链路上发送Probe Request或者Association Request帧。此时，可以将Operating Class字段或者Channel Number或者两个字段都设置为一个保留值，如0或者255。基于该方式，non-AP MLD可以判断出相应的Affiliated AP即将被移除。同时legacy STA也无法获得信道信息，从而避免legacy STA切换到相应信道上发送Probe Request帧或者Association Request帧。
从而，通过前述图7a所示实施例的描述，在实际应用中，当出现并非所有的邻居AP都必然支持与STA进行关联时，例如，当某个邻居AP为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD)的非主链路所对应的邻居AP的场景下，需要避免Legacy STA通过读取精简的邻居汇报元素并切换到相应信道上尝试与非主链路的AP进行探测和关联操作；又如，当某个邻居AP为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居AP，导致该邻居AP将不再支持STA的关联。基于前述技术方案，可以通过将无线帧中第一字段的取值设置为第一取值的方式，使得该无线帧的接收方确定邻居AP的信息中的信道信息无效或未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道上尝试与该邻居AP进行探测和关联。
请参阅图7b，为本申请实施例提供的一种通信方法的一个示意图，该方法包括如下步骤。可以理解的是，如图7b所示，该通信方法涉及无线帧的传输；因此，该通信方法也可以称为无线帧发送方法，或称为无线帧接收方法。
S201.无线帧发送装置生成无线帧，该无线帧包括目标字段，且在该目标字段的取值为第一取值时，该目标字段用于指示移除该邻居AP或停用该邻居AP。
本实施例中，无线帧发送装置生成无线帧，该无线帧包括第一信息元素，第一信息元素包括目标字段；其中，该第一信息元素用于承载邻居AP的信息，在该目标字段的取值为第一取值时，该目标字段用于指示移除该邻居AP或停用该邻居AP。
在一种可能的实现方式中，在步骤S201所生成的无线帧中的目标字段包括以下至少一项：
信道编号(Channel Number)字段；或，
操作类别(Operating Class)字段；或，
目标信标帧传输时间信息头(target beacon transmission times information header，TBTT info Header)字段中的保留(Reserved)字段；或，
目标信标帧传输时间信息字段类型(target beacon transmission times informationfield type，TBTT info Field Type)字段。
基于上述技术方案，目标字段可以通过上述多种方式实现，其中，第一取值为上述任意字段的保留值。从而，当无线帧接收方法应用于非传统站点(legacy STA)时，非legacy STA基于该无线帧中目标字段的取值设置为第一取值的方式，确定该邻居AP(即将)被移除或(即将)被停用；当无线帧接收方法应用于传统站点(legacy STA)时，legacy STA基于该无线帧中目标字段的取值设置为第一取值的方式，legacy STA解读得到该第一取值为保留值；因此，legacy STA确定目标字段为无效字段。
可选的，当该目标字段包括信道编号(Channel Number)字段时，第一取值为0；当该目标字段包括操作类别(Operating Class)字段时，第一取值为0或255；当该目标字段包括TBTT info Header字段中的保留(Reserved)字段时，第一取值为0或1；当该目标字段包括TBTT info Field Type字段时，第一取值为1或2或3。具体地，该目标字段的实现还可以参考前述图4至图6的相关描述，此处不再赘述。
在一种可能的实现方式中，该第一信息元素还包括第二字段，且该第二字段包括第一子字段和第二子字段；其中，该第二字段用于指示邻居AP对应的基本服务集参数；并且，第二字段所包含的第一子字段用于指示该基本服务集是否期望通过信道透传(on-channel tunneling，OCT)机制与该邻居AP交换管理类型的媒体接入控制协议数据单元(medium access control protocol data unit，MAC PDU，简称MPDU)，且在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第一子字段用于指示该基本服务集期望通过OCT机制与该邻居AP交换管理类型的媒体接入控制协议数据单元MPDU；并且，第二字段所包含的第二子字段用于指示该邻居AP是否开启主动探测响应，且在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第二子字段用于指示该邻居AP不开启主动探测响应。
具体地，在该邻居AP为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD)的非主链路所对应的邻居AP的场景下，在步骤S201所生成的无线帧中，用于承载邻居AP的信息的第一信息元素还包括用于指示邻居AP对应的基本服务集参数的第二字段，其中，该第二字段进一步包括第一子字段和第二子字段。并且，在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第一子字段用于指示该基本服务集期望通过OCT机制与该邻居AP交换管理类型的MPDU，该第二子字段用于指示该邻居AP不开启主动探测响应。从而，通过第二字段中第一子字段和第二子字段的设置，可以进一步避免无线帧的接收方依据邻居AP对应的基本服务集参数与该邻居AP关联。
可选的，该第二字段为基本服务集参数(basic service set parameter，BSS Parameter)字段，该第一子字段为信道透传推荐(OCT recommended)字段，该第二子字段为非请求探测响应活跃(Unsolicited Probe Response Active)子字段。其中，第二字段以及第二字段中的第一子字段和第二子字段的描述可以参考前述图5和图6所示相关描述，此处不再赘述。
在一种可能的实现方式中，该第一信息元素还包括第三字段，该第三字段用于指示该邻居AP对应的基本服务集的信标帧发送时间的偏置信息，且在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第三字段用于指示该邻居AP对应的基本服务集的信标帧发送时间的偏置信息为未知信息。
具体地，在该邻居AP为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD)的非主链路所对应的邻居AP的场景下，在步骤S201所生成的无线帧中，用于承载邻居AP的信息的第一信息元素还包括用于指示该邻居AP对应的基本服务集的信标帧发送时间的偏置信息的第三字段。并且，在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第三字段用于指示该邻居AP对应的基本服务集的信标帧发送时间的偏置信息为未知信息。从而，通过第三字段的设置，可以进一步避免无线帧的接收方依据该偏置信息与该邻居AP关联。其中，第三字段的描述可以参考前述图5和图6所示相关描述，此处不再赘述。
在一种可能的实现方式中，在步骤S201所生成的无线帧中的第一信息元素为精简的邻居汇报元素(Reduced Neighbor Report element)。
在一种可能的实现方式中，在步骤S201所生成的无线帧为管理帧。可选的，该无线帧包括信标(Beacon)帧、探测请求(Probe Request)帧、探测响应(Probe Response)帧、关联请求(Association Request)帧、重新关联请求(Reassociation Request)帧、解除关联(Disassociation)帧、解除认证(Deauthentication)帧、身份认证(Authentication)帧等中的一个或多个。
S202.无线帧发送装置发送无线帧。
本实施例中，无线帧发送装置在步骤S201生成无线帧之后，该无线帧发送装置在步骤S202中发送无线帧；相应的，无线帧接收装置在步骤S202中接收无线帧。
示例性的，无线帧发送装置和无线帧接收装置在步骤S202中可以基于前述图1或图2所示通信系统进行无线帧的传输，即通过无线帧发送装置与无线帧接收装置之间的多条链路中的一条或多条链路传输该无线帧。
可选的，无线帧发送装置可以对该无线帧进行发送预处理，并将发送预处理得到的处理结果在步骤S202中发送；例如，该发送预处理可以包括加密、加扰等方式。相应的，无线帧发送装置可以接收对该无线帧进行发送预处理得到的处理结果，并在步骤S202中将该处理结果进行接收预处理得到无线帧；例如，该接收预处理可以包括解密、解扰等方式。
S203.无线帧接收装置基于无线帧中的目标字段确定邻居AP(将要)被移除或邻居AP(将要)被停用。
具体的，无线帧接收装置在步骤S203中，可以依据所接收得到的无线帧中的第一信息元素中的目标字段的第一取值确定该邻居AP(即将)被移除或(即将)被停用。
由于本申请应用于支持IEEE 802.11ax下一代WiFi协议，如802.11be，或EHT等相关协议的无线局域网系统，对于运行在802.11be或EHT等相关协议的STA而言，其所遵从的标准为802.11be及之后标准，使得STA可以读取得到该目标字段的取值为第一取值时的含义。从而，STA作为步骤S103中的无线帧接收装置，可以在该无线帧中的第一信息元素中的目标字段的第一取值确定该邻居AP(即将)被移除或(即将)被停用。
对于legacy STA而言，其所遵从的标准为802.11be之前的标准，由于第一字段的取值为保留值，使得legacy STA无法基于该保留值获取得到该目标字段所指示的准确的信息。从而，legacy STA作为步骤S103中的无线帧接收装置，基于该无线帧中目标字段的取值设置为第一取值的方式，legacy STA解读得到该第一取值为保留值；因此，legacy STA确定目标字段为无效字段。
一种实现方式中，在无线帧中第一信息元素所指示的邻居AP为多链路设备中的某一链路上的AP的场景下。
当AP MLD想disable掉某个Affiliated AP或者Remove掉某个Affiliated AP时，可以在其他链路上的Beacon中通过Reduced Neighbor Report element来提前告知non-AP MLD(即无线帧接收装置)，同时需要避免legacy STA切换到即将移除的Affiliated AP所在链路上发送Probe Request或者Association Request帧。此时，可以通过将目标字段的取值设置为第一取值。基于该方式，non-AP MLD可以判断出相应的Affiliated AP即将被移除。同时legacy STA也无法获得信道信息，从而避免legacy STA切换到相应信道上发送Probe Request帧或者Association Request帧。
从而，通过前述图7a所示实施例的描述，在实际应用中，当出现并非所有的邻居都必然支持与STA进行关联时，例如，当某个邻居AP为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD)的非主链路所对应的邻居AP的场景下，为了避免对主链路上的设备的影响，有可能导致该邻居AP并无法支持在非主链路上关联STA；又如，当某个邻居为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居AP，导致该邻居AP将不再支持STA的关联。基于图7b所示技术方案，在无线帧的发送方确定邻居AP不用于与无线帧的接收方进行关联时，通过将无线帧中目标字段的取值设置为第一取值的方式，使得该无线帧的接收方确定该邻居AP(即将)被移除或(即将)被停用，避免该无线帧的接收方依据邻居AP的信息中的信道信息尝试与该邻居AP关联。
上面从方法的角度对本申请进行描述，下面将通过装置的角度对本申请进一步介绍。
请参阅图8，为本申请实施例提供的一种通信装置800的一个示意图，其中，该通信装置800包括处理单元801和收发单元802。
一种实现方式中，该通信装置800具体可以为无线帧发送装置，用于实现前述图7a所示实施例中的无线帧发送方法。相应的，该处理单元801和收发单元802包括如下过程。
该处理单元801用于生成无线帧，该无线帧包括第一信息元素，该第一信息元素包括第一字段；其中，该第一信息元素用于承载邻居AP的信息，该第一字段用于指示该邻居AP的信息中的信道信息，且在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知；
该收发单元802用于发送该无线帧。
基于上述技术方案，在实际应用中，当出现并非所有的邻居都必然支持与STA进行关联时，例如，当某个邻居为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD) 的非主链路所对应的邻居AP的场景下，需要避免Legacy STA通过读取精简的邻居汇报元素并切换到相应信道上尝试与非主链路的AP进行探测和关联操作；又如，当某个邻居为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居，导致该邻居将不再支持STA的关联。收发单元802所发送的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括用于指示该邻居AP的信息中的信道信息的第一字段；其中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中第一字段的取值设置为第一取值的方式，使得该无线帧的接收方确定邻居AP的信息中的信道信息无效或未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道上尝试与该邻居AP进行探测和关联。
另一种实现方式中，该通信装置800还可以为无线帧接收装置，用于实现前述图7a所示实施例中的无线帧接收方法。相应的，该处理单元801和收发单元802包括如下过程。
该收发单元802用于接收无线帧，该无线帧包括第一信息元素，该第一信息元素包括第一字段；其中，该第一信息元素用于承载邻居AP的信息，该第一字段用于指示该邻居AP的信息中的信道信息；
该处理单元801用于根据该无线帧确定该邻居AP的信息中的信道信息，其中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知。
基于上述技术方案，在实际应用中，当出现并非所有的邻居都必然支持与STA进行关联时，例如，当某个邻居为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD)的非主链路所对应的邻居AP的场景下，需要避免Legacy STA通过读取精简的邻居汇报元素并切换到相应信道上尝试与非主链路的AP进行探测和关联操作；又如，当某个邻居为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居，导致该邻居将不再支持STA的关联。收发单元802所接收的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括用于指示该邻居AP的信息中的信道信息的第一字段；其中，在该第一字段的取值为第一取值时，该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中第一字段的取值设置为第一取值的方式，使得该无线帧的接收方确定邻居AP的信息中的信道信息无效或未告知，避免无线帧的接收方中的legacy STA依据邻居AP的信息中的信道信息在相应信道上尝试与该邻居AP进行探测和关联。
在一种可能的实现方式中，该第一字段用于指示该信道信息所对应的信道编号。
在一种可能的实现方式中，该第一字段包括信道编号(Channel Number)字段。
在一种可能的实现方式中，该第一字段用于指示该信道信息所属的操作类别。
在一种可能的实现方式中，该第一字段包括操作类别Operating Class字段。
在一种可能的实现方式中，在该第一字段的取值为该第一取值时，该第一字段还用于指示移除该邻居AP；或，在该第一字段的取值为该第一取值时，该第一字段还用于指示停用该邻居。
在一种可能的实现方式中，在无线帧中还包括目标字段，该目标字段的取值为第二取值时，该目标字段用于指示移除该邻居AP；或，该目标字段的取值为第二取值时，该目标字段用于指示停用该邻居AP。
可选的，该目标字段包括以下至少一项：目标信标帧传输时间信息头(target beacon transmission times information header，TBTT info Header)字段中的保留(Reserved)字段，目标信标帧传输时间信息字段类型(target beacon transmission times informationfield type，TBTT info Field Type)字段等。
可选的，当该目标字段包括TBTT info Header字段中的保留(Reserved)字段时，第一取值为0或1；当该目标字段包括TBTT info Field Type字段时，第一取值为1或2或3。
在一种可能的实现方式中，该第一信息元素用于指示在非主链路上的邻居AP的信息。
在一种可能的实现方式中，该第一信息元素还包括第二字段，且该第二字段包括第一子字段和第二子字段；其中，该第二字段用于指示邻居对应的基本服务集参数；并且，第二字段所包含的第一子字段用于指示该基本服务集是否期望通过信道透传(on-channel tunneling，OCT)机制与该邻居交换管理类型的媒体接入控制协议数据单元(medium access control protocol data unit，MAC PDU，简称MPDU)，且在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第一子字段用于指示该基本服务集期望通过OCT机制与该邻居交换管理类型的媒体接入控制协议数据单元MPDU；并且，第二字段所包含的第二子字段用于指示该邻居是否开启主动探测响应，且在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第二子字段用于指示该邻居不开启主动探测响应。
在一种可能的实现方式中，该第二字段为基本服务集参数(basic service set parameter，BSS Parameter)字段，该第一子字段为信道透传推荐(OCT recommended)字段，该第二子字段为非请求探测响应活跃(Unsolicited Probe Response Active)子字段。
在一种可能的实现方式中，该第一信息元素还包括第三字段，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息，且在该第一字段用于指示该邻居AP的信息中的信道信息无效或未告知时，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息为未知信息。
在一种可能的实现方式中，该第一信息元素为精简的邻居汇报元素(Reduced Neighbor Report element)。
在一种可能的实现方式中，该无线帧为管理帧。
可选的，该无线帧包括信标(Beacon)帧、探测请求(Probe Request)帧、探测响应(Probe Response)帧、关联请求(Association Request)帧、重新关联请求(Reassociation Request)帧、解除关联(Disassociation)帧、解除认证(Deauthentication)帧、身份认证(Authentication)帧等中的一个或多个。
一种实现方式中，该通信装置800具体可以为无线帧发送装置，用于实现前述图7b所示实施例中的无线帧发送方法。相应的，该处理单元801和收发单元802包括如下过程。
基于上述技术方案，在实际应用中，当出现并非所有的邻居都必然支持与STA进行关联时，例如，当某个邻居为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD)的非主链路所对应的邻居AP的场景下，需要避免Legacy STA通过读取精简的邻居汇报元素并切换到相应信道上尝试与非主链路的AP进行探测和关联操作；又如，当某个邻居为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居，导致该邻居将不再支持STA的关联。收发单元801所发送的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括目标字段；其中，在该目标字段的取值为第一取值时，该目标字段用于指示移除或停用该邻居AP。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中目标字段的取值设置为第一取值的方式，使得该无线帧的接收方确定该邻居AP(即将)被移除或(即将)被停用，避免该无线帧的接收方依据邻居AP的信息中的信道信息尝试与该邻居关联。
另一种实现方式中，该通信装置800具体可以为无线帧接收装置，用于实现前述图7b所示实施例中的无线帧接收方法。相应的，该处理单元801和收发单元802包括如下过程。
基于上述技术方案，在实际应用中，当出现并非所有的邻居都必然支持与STA进行关联时，例如，当某个邻居为软AP MLD(soft AP MLD，也可以称为软件定义的AP MLD)的非主链路所对应的邻居AP的场景下，需要避免Legacy STA通过读取精简的邻居汇报元素并切换到相应信道上尝试与非主链路的AP进行探测和关联操作；又如，当某个邻居为多链路设备中的某一链路上的AP的场景下，出于降低功耗或者其他目的，有可能需要停用(disable)或移除(remove)该邻居，导致该邻居将不再支持STA的关联。收发单元801所接收的无线帧包括用于承载邻居AP的信息的第一信息元素，并且，该第一信息元素包括目标字段；其中，在该目标字段的取值为第一取值时，该目标字段用于指示移除或停用该邻居AP。从而，在无线帧的发送方确定邻居不用于与无线帧的接收方进行关联时，通过将无线帧中目标字段的取值设置为第一取值的方式，使得该无线帧的接收方确定该邻居AP(即将)被移除或(即将)被停用，避免该无线帧的接收方依据邻居AP的信息中的信道信息尝试与该邻居关联。
在一种可能的实现方式中，该目标字段包括以下至少一项：
信道编号(Channel Number)字段；或，
操作类别(Operating Class)字段；或，
目标信标帧传输时间信息头(target beacon transmission times information header，TBTT info Header)字段中的保留(Reserved)字段；或，
目标信标帧传输时间信息字段类型(target beacon transmission times informationfield type，TBTT info Field Type)字段。
可选的，当该目标字段包括信道编号(Channel Number)字段时，第一取值为0；当该目标字段包括操作类别(Operating Class)字段时，第一取值为0或255；当该目标字段包 括TBTT info Header字段中的保留(Reserved)字段时，第一取值为0或1；当该目标字段包括TBTT info Field Type字段时，第一取值为1或2或3。
在一种可能的实现方式中，该第一信息元素还包括第二字段，且该第二字段包括第一子字段和第二子字段；其中，该第二字段用于指示邻居对应的基本服务集参数；并且，第二字段所包含的第一子字段用于指示该基本服务集是否期望通过信道透传(on-channel tunneling，OCT)机制与该邻居交换管理类型的媒体接入控制协议数据单元(medium access control protocol data unit，MAC PDU，简称MPDU)，且在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第一子字段用于指示该基本服务集期望通过OCT机制与该邻居交换管理类型的媒体接入控制协议数据单元MPDU；并且，第二字段所包含的第二子字段用于指示该邻居是否开启主动探测响应，且在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第二子字段用于指示该邻居不开启主动探测响应。
在一种可能的实现方式中，该第二字段为基本服务集参数(basic service set parameter，BSS Parameter)字段，该第一子字段为信道透传推荐(OCT recommended)字段，该第二子字段为非请求探测响应活跃(Unsolicited Probe Response Active)子字段。
在一种可能的实现方式中，该第一信息元素还包括第三字段，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息，且在该目标字段用于指示移除该邻居AP或停用该邻居AP时，该第三字段用于指示该邻居对应的基本服务集的信标帧发送时间的偏置信息为未知信息。
在一种可能的实现方式中，该第一信息元素为精简的邻居汇报元素(Reduced Neighbor Report element)。
在一种可能的实现方式中，该无线帧为管理帧。
可选的，该无线帧包括信标(Beacon)帧、探测请求(Probe Request)帧、探测响应(Probe Response)帧、关联请求(Association Request)帧、重新关联请求(Reassociation Request)帧、解除关联(Disassociation)帧、解除认证(Deauthentication)帧、身份认证(Authentication)帧等中的一个或多个。
需要说明的是，该通信装置800还可以用于执行前述其它实施例，并实现相应的有益效果，具体可以参考前述实施例中的描述，此处不再赘述。
参见图9，图9是本申请实施例提供的通信装置900的结构示意图，该通信装置900包括处理器901和收发器902。
该通信装置900可以为无线帧发送装置或无线帧接收装置，或其中的芯片。
图9仅示出了通信装置900的主要部件。除处理器901和收发器902之外，该通信装置还可以进一步包括存储器903、以及输入输出装置(图未示意)。
其中，处理器901主要用于对通信协议以及通信数据进行处理，以及对整个通信装置进行控制，执行软件程序，处理软件程序的数据。存储器903主要用于存储软件程序和数据。收发器902可以包括射频电路和天线，射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
其中，处理器901、收发器902、以及存储器903可以通过通信总线连接。
当通信装置开机后，处理器901可以读取存储器903中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器901对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到通信装置时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器901，处理器901将基带信号转换为数据并对该数据进行处理。
在上述任一种设计中，处理器901中可以包括用于实现接收和发送功能的通信接口。例如该通信接口可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在上述任一种设计中，处理器901可以存有指令，该指令可为计算机程序，计算机程序在处理器901上运行，可使得通信装置900执行上述任一实施例中描述的方法。计算机程序可能固化在处理器901中，该种情况下，处理器901可能由硬件实现。
在一种实现方式中，通信装置900可以包括电路，该电路可以实现前述任一实施例中发送或接收或者通信的功能。本申请中描述的处理器和通信接口可实现在集成电路(integrated circuit，IC)、模拟IC、无线射频集成电路(radio frequency integrated circuit，RFIC)、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和通信接口也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
在另一种实现中，该的射频电路和天线可以独立于进行基带处理的处理器而设置，例如在分布式场景中，射频电路和天线可以与独立于通信装置，呈拉远式的布置。
通信装置可以是独立的设备或者可以是较大设备的一部分。例如该通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，指令的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、智能终端、无线设备、手持机、移动单元、车载设备、云设备、人工智能设备等等；
(6)其他等等。
此外，处理器901可用于进行，例如但不限于，基带相关处理，收发器902可用于进行，例如但不限于，射频收发。上述器件可以分别设置在彼此独立的芯片上，也可以至少部分 的或者全部的设置在同一块芯片上。例如，处理器可以进一步划分为模拟基带处理器和数字基带处理器。其中，模拟基带处理器可以与收发器集成在同一块芯片上，数字基带处理器可以设置在独立的芯片上。随着集成电路技术的不断发展，可以在同一块芯片上集成的器件越来越多，例如，数字基带处理器可以与多种应用处理器(例如但不限于图形处理器，多媒体处理器等)集成在同一块芯片之上。这样的芯片可以称为系统芯片(system on chip)。将各个器件独立设置在不同的芯片上，还是整合设置在一个或者多个芯片上，往往取决于产品设计的具体需要。本发明实施例对上述器件的具体实现形式不做限定。
本申请实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序代码，当上述处理器执行该计算机程序代码时，电子设备执行前述任一实施例中的方法。
本申请实施例还提供一种计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行前述任一实施例中的方法。
本申请实施例还提供一种通信装置，该装置可以以芯片的产品形态存在，该装置的结构中包括处理器和接口电路，该处理器用于通过接收电路与其它装置通信，使得该装置执行前述任一实施例中的方法。
本申请实施例还提供一种WLAN通信系统，包括无线帧发送装置和无线帧接收装置，该无线帧发送装置和该无线帧接收装置可以执行前述任一实施例中的方法。
结合本申请公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(Random Access Memory，RAM)、闪存、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于核心网接口设备中。当然，处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机可读存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
尽管在此结合各实施例对本申请进行了描述，然而，在实施所要求保护的本申请过程中，本领域技术人员通过查看该附图、公开内容、以及所附权利要求书，可理解并实现该公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举 的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上该仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请的保护范围之内。

Claims (19)

  1. 一种无线帧的发送方法，其特征在于，包括：
    生成无线帧，所述无线帧包括第一信息元素，所述第一信息元素包括第一字段；其中，所述第一信息元素用于承载邻居AP的信息，所述第一字段用于指示所述邻居AP的信息中的信道信息，且在所述第一字段的取值为第一取值时，所述第一字段用于指示所述邻居AP的信息中的信道信息无效或未告知；
    发送所述无线帧。
  2. 一种无线帧的接收方法，其特征在于，包括：
    接收无线帧，所述无线帧包括第一信息元素，所述第一信息元素包括第一字段；其中，所述第一信息元素用于承载邻居AP的信息，所述第一字段用于指示所述邻居AP的信息中的信道信息；
    根据所述无线帧确定所述邻居AP的信息中的信道信息，其中，在所述第一字段的取值为第一取值时，所述第一字段用于指示所述邻居AP的信息中的信道信息未告知。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一字段用于指示所述信道信息所对应的信道编号。
  4. 根据权利要求3所述的方法，其特征在于，所述第一字段包括信道编号Channel Number字段。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，所述第一字段用于指示所述信道信息所属的操作类别。
  6. 根据权利要求5所述的方法，其特征在于，所述第一字段包括操作类别Operating Class字段。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，
    在所述第一字段的取值为所述第一取值时，所述第一字段还用于指示移除所述邻居AP；或，
    在所述第一字段的取值为所述第一取值时，所述第一字段还用于指示停用所述邻居AP。
  8. 根据权利要求1至7任一项所述的方法，其特征在于，所述第一信息元素用于指示软多链路接入点设备AP MLD在非主链路上的邻居AP的信息。
  9. 根据权利要求8所述的方法，其特征在于，所述第一信息元素还包括第二字段，且所述第二字段包括第一子字段和第二子字段；
    所述第二字段用于指示邻居对应的基本服务集参数；
    所述第一子字段用于指示所述基本服务集是否期望通过信道透传OCT机制与所述邻居交换管理类型的媒体接入控制协议数据单元MPDU，且在所述第一字段用于指示所述邻居AP的信息中的信道信息无效或未告知时，所述第一子字段用于指示所述基本服务集期望通过OCT机制与所述邻居交换管理类型的媒体接入控制协议数据单元MPDU；
    所述第二子字段用于指示所述邻居是否开启主动探测响应，且在所述第一字段用于指示所述邻居AP的信息中的信道信息无效或未告知时，所述第二子字段用于指示所述邻居不开启主动探测响应。
  10. 根据权利要求9所述的方法，其特征在于，所述第二字段为基本服务集参数BSS Parameter字段，所述第一子字段为信道透传推荐OCT recommended字段，所述第二子字段为非请求探测响应活跃Unsolicited Probe Response Active子字段。
  11. 根据权利要求8至10任一项所述的方法，其特征在于，所述第一信息元素还包括第三字段，所述第三字段用于指示所述邻居对应的基本服务集的信标帧发送时间的偏置信息，且在所述第一字段用于指示所述邻居AP的信息中的信道信息无效或未告知时，所述第三字段用于指示所述邻居对应的基本服务集的信标帧发送时间的偏置信息为未知信息。
  12. 根据权利要求1至11任一项所述的方法，其特征在于，所述第一信息元素为精简的邻居汇报元素Reduced Neighbor Report element。
  13. 根据权利要求1至12任一项所述的方法，其特征在于，所述无线帧为管理帧。
  14. 一种无线帧发送装置，其特征在于，所述装置包括处理单元和收发单元，其中，所述装置用于执行权利要求1、3至13任一项所述的方法。
  15. 一种无线帧接收装置，其特征在于，所述装置包括处理单元和收发单元，其中，所述装置用于执行权利要求2至13任一项所述的方法。
  16. 一种通信装置，其特征在于，包括至少一个处理器，与存储器耦合；
    所述存储器用于存储程序或指令；
    所述至少一个处理器用于执行所述程序或指令，以使所述装置实现如权利要求1、3至13任一项所述的方法。
  17. 一种通信装置，其特征在于，包括至少一个处理器，与存储器耦合；
    所述存储器用于存储程序或指令；
    所述至少一个处理器用于执行所述程序或指令，以使所述装置实现如权利要求2至13 任一项所述的方法。
  18. 一种包含程序指令的计算机程序产品，其特征在于，当所述程序指令在计算机上运行时，使得所述计算机执行权利要求1至13任一项所述的方法。
  19. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储程序指令，当所述程序指令运行时，使得权利要求1至13任一项所述的方法被执行。
PCT/CN2022/107850 2021-07-27 2022-07-26 无线帧发送方法及装置、无线帧接收方法及装置 WO2023005907A1 (zh)

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