Frame switching method, communication device, and communication system

Abstract

The embodiments of the present disclosure relate to a frame switching method, a communication device, and a communication system. The frame switching method comprises: an access point device AP determining a first wireless frame, wherein the first wireless frame comprises at least one of first padding information and second padding information, a duration corresponding to the padding length of the first padding information is greater than or equal to a first padding delay, a duration corresponding to the padding length of the second padding information is greater than or equal to a first enhanced multi-link single radio (EMLSR) padding delay, the first padding delay comprises the maximum value of a padding delay required by a station device STA, which is associated with the AP, to switch from a first capability mode to a first operating mode, and the first EMLSR padding delay comprises the maximum value of an EMLSR padding delay required by the STA to switch from the first operating mode to a second capability mode; and the AP sending the first wireless frame. In this way, a frame switching mechanism can be further enhanced.

Description

Frame exchange method, communication device and communication system TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a frame exchange method, a communication device and a communication system. BACKGROUND

[0002] At present, the contents researched by Wi-Fi technology, such as Ultra High Reliability (UHR), have the vision of improving the reliability of Wireless Local Area Networks (WLAN) connection, reducing the delay, improving the manageability, increasing the throughput under different Signal to Noise Ratio (SNR) levels and reducing the device-level power consumption, etc.

[0003] In the frame exchange process, the AP MLD can perform frame exchange with multiple non-AP MLDs associated therewith, but based on different power saving mechanisms and communication requirements, different non-AP MLDs can work in different communication modes, for example, part of the non-AP MLDs work in the EMLSR mode, and part of the non-AP MLDs work in a lower communication mode; in this way, the AP MLD needs to respectively perform information interaction with each non-AP MLD to trigger the non-AP MLD to perform frame exchange with the AP MLD.

[0004] SUMMARY

[0005] Embodiments of the present disclosure provide a frame exchange method, a communication device and a communication system to provide further enhanced frame exchange mechanism.

[0006] In a first aspect, embodiments of the present disclosure provide a frame exchange method, the method comprising:

[0007] An access point device AP determines a first wireless frame; wherein the first wireless frame comprises at least one of first padding information and second padding information;

[0008] The padding length of the first padding information corresponds to a time duration greater than or equal to a first padding delay; the padding length of the second padding information corresponds to a time duration greater than or equal to a first enhanced multi-link single radio-padding delay (EMLSRpaddingdelay);

[0009] The first padding delay comprises a maximum value of padding delays required for a station device STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode.

[0010] The AP transmits the first wireless frame.

[0011] In a second aspect, the embodiments of the present disclosure further provide a frame exchange method, and the method comprises:

[0012] The first STA receives a first wireless frame transmitted by an AP; wherein the first wireless frame comprises at least one of first padding information and second padding information;

[0013] A time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay; and a time length corresponding to a padding length of the second padding information is greater than or equal to a first EMLSR padding delay.

[0014] The first padding delay comprises a maximum value of padding delays required for a station device STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode.

[0015] The STA comprises the first STA.

[0016] In a third aspect, the embodiments of the present disclosure further provide a frame exchange method, and the method comprises:

[0017] The second STA receives a first wireless frame transmitted by an AP; wherein the first wireless frame comprises at least one of first padding information and second padding information;

[0018] A time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay; and a time length corresponding to a padding length of the second padding information is greater than or equal to a first EMLSR padding delay.

[0019] The first padding delay includes a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay includes a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode.

[0020] The STA includes the second STA.

[0021] In a fourth aspect, the embodiments of the present disclosure further provide a communication device, which is an AP, and the AP includes:

[0022] A determining module is configured to determine a first wireless frame; wherein the first wireless frame includes at least one of first padding information and second padding information.

[0023] A length of padding of the first padding information corresponds to a time length greater than or equal to a first padding delay; and a length of padding of the second padding information corresponds to a time length greater than or equal to a first enhanced multi-link radio-padded delay (EMLSR padding delay).

[0024] The first padding delay includes a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay includes a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode.

[0025] A sending module is configured to send the first wireless frame.

[0026] In a fifth aspect, the embodiments of the present disclosure further provide a communication device, which is a first STA, and the first STA includes:

[0027] A first receiving module is configured to receive a first wireless frame sent by an AP; wherein the first wireless frame includes at least one of first padding information and second padding information.

[0028] A length of padding of the first padding information corresponds to a time length greater than or equal to a first padding delay; and a length of padding of the second padding information corresponds to a time length greater than or equal to a first EMLSR padding delay.

[0029] The first padding delay includes a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay includes a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode.

[0030] The STA includes the first STA.

[0031] In a sixth aspect, the embodiments of the present disclosure further provide a communication device, the communication device being a second STA, and the second STA including:

[0032] The second receiving module is configured to receive a first wireless frame sent by an AP; the first wireless frame including at least one of first padding information and second padding information.

[0033] A time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay; and a time length corresponding to a padding length of the second padding information is greater than or equal to a first EMLSR padding delay.

[0034] The first padding delay includes a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay includes a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode.

[0035] The STA includes the second STA.

[0036] In a seventh aspect, the embodiments of the present disclosure further provide a communication device, the communication device including an AP, and the AP including:

[0037] One or more processors;

[0038] The AP is configured to perform the frame exchange method in the first aspect of the embodiments of the present disclosure.

[0039] In an eighth aspect, the embodiments of the present disclosure further provide a communication device, the communication device including a first STA, and the first STA including:

[0040] One or more processors;

[0041] The first STA is configured to perform the frame exchange method in the second aspect of the embodiments of the present disclosure.

[0042] In a ninth aspect, the embodiments of the present disclosure further provide a communication device, the communication device comprising a second STA, comprising:

[0043] one or more processors;

[0044] The second STA is configured to perform the frame exchange method of the third aspect of the embodiments of the present disclosure.

[0045] In a tenth aspect, the embodiments of the present disclosure further provide a communication system, comprising an AP, a first STA and a second STA;

[0046] The AP is configured to determine a first wireless frame, and transmit the first wireless frame, wherein the first wireless frame comprises at least one of first padding information and second padding information.

[0047] A time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay; a padding length of the second padding information is greater than a first EMLSR padding delay; the first padding delay comprises a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode; and the STA comprises the first STA or the second STA.

[0048] The first STA is configured to receive the first wireless frame transmitted by the AP.

[0049] The second STA is configured to receive the first wireless frame transmitted by the AP.

[0050] In an eleventh aspect, the embodiments of the present disclosure further provide a storage medium, the storage medium storing instructions, when the instructions are executed on a communication device, causing the communication device to perform the frame exchange method of the first aspect of the embodiments of the present disclosure, or perform the frame exchange method of the second aspect of the embodiments of the present disclosure, or perform the frame exchange method of the third aspect of the embodiments of the present disclosure.

[0051] In the embodiments of the present disclosure, the AP determines and sends a first wireless frame; at least one of the first padding information and the second padding information is carried through the first wireless frame, the padding length of the first padding information is greater than the maximum value of the padding delay required for the STA to switch from the first capability mode to the first operation mode, the padding length of the second padding information is greater than the maximum value of the EMLSR padding delay required for the STA to switch from the first operation mode to the second capability mode, and it is not limited whether the STA is a UHR non-AP STA or a Pre-UHR non-AP STA, so that the STA associated with the AP has enough time to switch from the first capability mode to the second capability mode, or from the first operation mode to the second operation mode, the frame exchange and response alignment of the plurality of STAs associated with the AP are triggered through the same wireless frame, better backward compatibility is achieved, and power saving of the plurality of STAs associated with the AP in different power saving modes is facilitated.

[0052] Additional aspects and advantages of the embodiments of the present disclosure will be given in part in the following description, which will become apparent from the following description, or will be learned by practice of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiment description. The following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0054] FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0055] FIG. 2 is an interaction schematic diagram of a frame exchange method provided by an embodiment of the present disclosure;

[0056] FIG. 3 is an interaction schematic diagram of a frame exchange method provided by an embodiment of the present disclosure;

[0057] FIG. 4 is a flow schematic diagram of a frame exchange method provided by an embodiment of the present disclosure;

[0058] FIG. 5 is a flow schematic diagram of a frame exchange method provided by an embodiment of the present disclosure;

[0059] FIG. 6 is a flow schematic diagram of a frame exchange method provided by an embodiment of the present disclosure;

[0060] FIG. 7 is a structural schematic diagram of an access point device provided by an embodiment of the present disclosure;

[0061] FIG. 8 is a structural schematic diagram of a station device provided by an embodiment of the present disclosure;

[0062] FIG. 9 is a second structural schematic diagram of a station device according to an embodiment of the present disclosure;

[0063] FIG. 10 is a structural schematic diagram of a terminal according to an embodiment of the present disclosure;

[0064] FIG. 11 is a structural schematic diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0065] The embodiments of the present disclosure provide a frame exchange method, a communication device and a communication system.

[0066] In a first aspect, the embodiments of the present disclosure provide a frame exchange method, which comprises:

[0067] An access point device AP determines a first wireless frame; wherein the first wireless frame comprises at least one of first padding information and second padding information;

[0068] A time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay; and a time length corresponding to a padding length of the second padding information is greater than or equal to a first enhanced multi-link single radio-padding delay (EMLSR padding delay);

[0069] The first padding delay comprises a maximum value of a padding delay required for a station device STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay comprises a maximum value of an EMLSR padding delay required for the STA to switch from the first operation mode to a second capability mode.

[0070] The AP sends the first wireless frame.

[0071] In the above embodiments, the AP determines and sends the first wireless frame; at least one of the first padding information and the second padding information is carried through the first wireless frame, the padding length of the first padding information is greater than the maximum value of the padding delay required for the STA to switch from the first capability mode to the first operation mode, the padding length of the second padding information is greater than the maximum value of the EMLSR padding delay required for the STA to switch from the first operation mode to the second capability mode, and it is not limited whether the STA is a UHR non-AP STA or a Pre-UHR non-AP STA, so that the STA associated with the AP has enough time to switch from the first capability mode to the second capability mode or from the first operation mode to the second operation mode, the frame exchange and response alignment of the multiple STAs associated with the AP are triggered through the same wireless frame, better backward compatibility is achieved, and power saving of the multiple STAs associated with the AP in different power saving modes is facilitated.

[0072] In some embodiments of the first aspect, in some embodiments, the first wireless frame is used to trigger frame exchange of at least two STAs operating in an EMLSR link, and at least one of the at least two STAs operates in the first capability mode.

[0073] The first operation mode includes a listening operation mode in the EMLSR link.

[0074] For any one of the at least one communication parameter, the parameter value of the first operation mode is greater than the parameter value of the first capability mode and less than the parameter value of the second capability mode.

[0075] In the above embodiments, by limiting that the first wireless frame is used to trigger frame exchange of at least two STAs operating in an EMLSR link, and at least one of the at least two STAs operates in the first capability mode, and for any one of the at least one communication parameter, the parameter value of the first operation mode is greater than the parameter value of the first capability mode and less than the parameter value of the second capability mode; in this way, it can be ensured that the first wireless frame can trigger STAs supporting different transmission protocols to perform frame exchange at the same time, frame exchange and response alignment of the multiple STAs associated with the AP are triggered through the same wireless frame, and better backward compatibility is achieved.

[0076] In some embodiments of the first aspect, in some embodiments, before the AP determines the first wireless frame, the method further includes:

[0077] The AP receives a second wireless frame sent by a STA; the STA includes a first STA or a second STA; wherein the second wireless frame includes at least one of the following parameters:

[0078] A first padding delay required for the first STA to switch from the first capability mode to the first operation mode;

[0079] A second EMLSR padding delay required for the first STA to switch from the first operation capability mode to the second capability mode;

[0080] A first transition delay required for the first STA to switch from the second capability mode to the first operation mode after frame exchange with the AP;

[0081] A second transition delay required for the first STA to switch from the first operation mode to the first capability mode after frame exchange with the AP;

[0082] A third EMLSR padding delay required for the second STA to switch from the first operation mode to the second capability mode;

[0083] A third transition delay required for the second STA to switch from the second capability mode to the first operation mode after frame exchange with the AP.

[0084] In the above embodiments, the STA associated with the AP can report to the AP the delay required for the STA itself to switch from the communication mode in which the STA itself works to the second capability mode, and the delay required for the STA itself to switch from the second capability mode back to the communication mode in which the STA itself works, according to the characteristics of the STA itself.

[0085] In combination with some embodiments of the first aspect, in some embodiments, after the AP sends the first wireless frame, the method further includes:

[0086] The AP receives a third wireless frame sent by the first STA; the third wireless frame identifies that the first STA switches to the second capability mode and waits for data transmission;

[0087] And / or

[0088] The AP receives a fourth wireless frame sent by the second STA; the fourth wireless frame identifies that the second STA switches to the second capability mode and waits for data transmission.

[0089] In the above embodiments, the STA associated with the AP can inform the AP that the STA has switched to the second capability mode and is ready for frame exchange (i.e., waiting for data transmission) by sending a third wireless frame to the AP.

[0090] In a second aspect, the embodiments of the present disclosure provide a frame exchange method, the method comprising:

[0091] The first STA receives a first wireless frame sent by the AP; wherein the first wireless frame comprises at least one of: first padding information and second padding information;

[0092] The padding length of the first padding information corresponds to a time duration greater than or equal to a first padding delay; and the padding length of the second padding information corresponds to a time duration greater than or equal to a first EMLSR padding delay.

[0093] The first padding delay comprises a maximum value of padding delays required for a STA associated with the AP to switch from the first capability mode to the first operation mode; and the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to the second capability mode.

[0094] The STA comprises the first STA.

[0095] In combination with some embodiments of the second aspect, in some embodiments, the first wireless frame is used to trigger at least two STAs working in an EMLSR link to perform frame exchange, and at least one of the at least two STAs works in the first capability mode.

[0096] The first operation mode comprises a Listening Operation mode under an EMLSR link.

[0097] For any one of the at least one communication parameter, the parameter value of the first operation mode is greater than the parameter value of the first capability mode and less than the parameter value of the second capability mode.

[0098] In combination with some embodiments of the second aspect, in some embodiments, before the first STA receives the first wireless frame sent by the AP, the method further comprises:

[0099] The first STA determines a second wireless frame;

[0100] The first STA sends the second wireless frame to the AP;

[0101] The second wireless frame comprises at least one of the following parameters:

[0102] A first padding delay required for the first STA to switch from the first capability mode to the first operation mode;

[0103] A second EMLSR padding delay required for the first STA to switch from the first operation capability mode to the second capability mode;

[0104] A first Transition delay required for the first STA to switch from the second capability mode to the first operation mode after the frame exchange between the first STA and the AP;

[0105] A second Transition delay required for the first STA to switch from the first operation mode to the first capability mode after the frame exchange between the first STA and the AP.

[0106] In some embodiments of the second aspect, after the first STA receives the first wireless frame sent by the AP, the method further comprises any one of the following:

[0107] In a case where the first STA works in the first capability mode before receiving the first wireless frame, the first STA switches from the first capability mode to the first operation mode based on the first padding information, and switches from the first operation mode to the second capability mode based on the second padding information;

[0108] In a case where the first STA works in the first operation mode before receiving the first wireless frame, the first STA switches from the first operation mode to the second capability mode based on the second padding information.

[0109] In the above embodiments, the first STA can switch from the current communication mode of the first STA to the second capability mode based on the first padding information or the second padding information comprised in the first wireless frame according to the characteristics of the first STA itself.

[0110] In some embodiments of the second aspect, after the first STA switches from the first operation mode to the second capability mode, the method further comprises:

[0111] The first STA sends a third wireless frame to the AP, wherein the third wireless frame indicates that the first STA switches to the second capability mode and waits for data transmission.

[0112] In some embodiments of the second aspect, after the first STA and the AP complete the frame exchange, the method further includes any one of the following:

[0113] In a case where the first STA operates in the first capability mode before receiving the first wireless frame, the first STA switches from the second capability mode to the first operation mode after the first Transition delay indicates, and switches from the first operation mode to the first capability mode after the second Transition delay indicates.

[0114] In a case where the first STA operates in the first operation mode before receiving the first wireless frame, the first STA switches from the first operation mode to the first capability mode after the second Transition delay indicates.

[0115] In the above embodiments, the first STA can switch back to the communication mode before the first STA receives the first wireless frame within the time indicated by the corresponding Transition delay according to the characteristics of the first STA itself.

[0116] In some embodiments of the second aspect, the switching from the first capability mode to the first operation mode includes: switching the parameter value of the first capability mode under the first communication parameter to the parameter value of the first operation mode under the first communication parameter, the first communication parameter including at least one of: bandwidth, transmission radio frequency link, and reception radio frequency link.

[0117] The switching from the first operation mode to the second capability mode includes: switching the parameter value of the first operation mode under the second communication parameter to the parameter value of the second capability mode under the second communication parameter, the second communication parameter including at least one of: transmission radio frequency link and reception radio frequency link.

[0118] In the above embodiments, the first STA can switch from the first capability mode to the first operation mode, and / or switch from the first operation mode to the second capability mode according to the parameter information corresponding to the first capability mode, the first operation mode, and the second capability mode respectively.

[0119] In a third aspect, the embodiments of the present disclosure provide a frame exchange method, the method includes:

[0120] The second STA receives the first wireless frame sent by the AP, wherein the first wireless frame includes at least one of: first padding information and second padding information.

[0121] a duration corresponding to a padding length of the first padding information is greater than or equal to the first padding delay; and a duration corresponding to a padding length of the second padding information is greater than or equal to the first EMLSR padding delay.

[0122] the first padding delay comprises a maximum value of padding delays required for a STA associated with the AP to switch from the first capability mode to the first operation mode; the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to the second capability mode; and the STA comprises the second STA.

[0123] In some embodiments of the third aspect, in some embodiments, the first wireless frame is used to trigger at least two STAs operating in an EMLSR link to perform frame exchange, and at least one of the at least two STAs operates in the first capability mode.

[0124] the first operation mode comprises a Listening Operation mode in the EMLSR link.

[0125] for any one of the at least one communication parameter, a parameter value of the first operation mode is greater than a parameter value of the first capability mode and less than a parameter value of the second capability mode.

[0126] In some embodiments of the third aspect, in some embodiments, before the second STA receives the first wireless frame sent by the AP, the method further comprises:

[0127] the second STA determines a second wireless frame;

[0128] the second STA sends the second wireless frame to the AP;

[0129] wherein the second wireless frame comprises at least one of the following parameters:

[0130] a third EMLSR padding delay required for the second STA to switch from the first operation mode to the second capability mode;

[0131] a third Transition delay required for the second STA to switch from the second capability mode to the first operation mode after performing frame exchange with the AP.

[0132] In some embodiments of the third aspect, in some embodiments, after the second STA receives the first wireless frame sent by the AP, the method further comprises any one of the following:

[0133] The second STA switches from the first operation mode to the second capability mode based on the second padding information.

[0134] In the above embodiment, the second STA can switch from the current communication mode of the second STA to the second capability mode based on the second padding information included in the first wireless frame according to the characteristics of the second STA itself.

[0135] In combination with some embodiments of the third aspect, in some embodiments, after the second STA switches from the first operation mode to the second capability mode, the method further includes:

[0136] The second STA sends a third wireless frame to the AP, wherein the third wireless frame indicates that the second STA switches to the second capability mode and waits for data transmission.

[0137] In combination with some embodiments of the third aspect, in some embodiments, after the second STA and the AP complete the frame exchange, the method further includes any one of the following:

[0138] The second STA switches from the second capability mode to the first operation mode after the third Transition delay indicates the duration.

[0139] In combination with some embodiments of the third aspect, in some embodiments, the switching from the first operation mode to the second capability mode includes switching the parameter value of the first operation mode under the second communication parameter to the parameter value of the second capability mode under the second communication parameter, and the second communication parameter includes at least one of a transmitting radio frequency link and a receiving radio frequency link.

[0140] In the fourth aspect, the embodiments of the present disclosure further provide a communication device, and the above communication device includes an AP, and the AP includes at least one of a determination module and a sending module; wherein the AP is configured to execute the optional implementation manners of the first aspect.

[0141] In the fifth aspect, the embodiments of the present disclosure further provide a communication device, and the above communication device includes a first STA, and the first STA includes a first receiving module; wherein the first STA is configured to execute the optional implementation manners of the second aspect.

[0142] In the sixth aspect, the embodiments of the present disclosure further provide a communication device, and the above communication device includes a second STA, and the second STA includes a second receiving module; wherein the second STA is configured to execute the optional implementation manners of the third aspect.

[0143] In a seventh aspect, the embodiments of the present disclosure further provide a communication device, which comprises an AP, and the AP comprises:

[0144] one or more processors;

[0145] The AP is configured to perform the optional implementation manners of the first aspect.

[0146] In an eighth aspect, the embodiments of the present disclosure further provide a communication device, which comprises a first STA, and the first STA comprises:

[0147] one or more processors;

[0148] The first STA is configured to perform the optional implementation manners of the second aspect.

[0149] In a ninth aspect, the embodiments of the present disclosure further provide a communication device, which comprises a second STA, and the second STA comprises:

[0150] one or more processors;

[0151] The second STA is configured to perform the optional implementation manners of the third aspect.

[0152] In a tenth aspect, the embodiments of the present disclosure further provide a communication system, which comprises an AP, a first STA and a second STA; wherein the AP is configured to perform the optional implementation manners of the first aspect, the first STA is configured to perform the optional implementation manners of the second aspect, and the second STA is configured to perform the optional implementation manners of the second aspect.

[0153] In an eleventh aspect, the embodiments of the present disclosure further provide a storage medium, which stores instructions, when the instructions are run on a communication device, the communication device is caused to perform the optional implementation manners of the first aspect, the second aspect and the third aspect.

[0154] In a twelfth aspect, the embodiments of the present disclosure provide a program product, when the program product is executed by a communication device, the communication device is caused to perform the method described in the optional implementation manners of the first aspect, the second aspect and the third aspect.

[0155] In a thirteenth aspect, the embodiments of the present disclosure provide a computer program, when the computer program is run on a computer, the computer is caused to perform the method described in the optional implementation manners of the first aspect, the second aspect and the third aspect.

[0156] In a fourteenth aspect, the embodiments of the present disclosure provide a chip or a chip system. The chip or the chip system comprises a processing circuit configured to perform the method described in the optional implementation manners of the first aspect, the second aspect and the third aspect.

[0157] It can be understood that the communication device, the communication system, the storage medium, the program product, the computer program, the chip or the chip system are used to execute the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects achieved thereby can refer to the beneficial effects in the corresponding method, which will not be described here.

[0158] The embodiments of the present disclosure propose a frame exchange method, a communication device and a communication system. In some embodiments, the frame exchange method can be replaced by the terms such as signal sending method and wireless frame sending method, and the information processing system and the communication system can be replaced by each other.

[0159] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or part or all of the steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation manners of other embodiments arbitrarily.

[0160] In each embodiment of the present disclosure, the terms and / or descriptions between the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0161] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and not as a limitation on the present disclosure.

[0162] In the embodiments of the present disclosure, "multiple" refers to two or more.

[0163] In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple", and the like can be replaced by each other.

[0164] In some embodiments, "at least one of A, B", "A and / or B", "in one case A, in another case B", "responsive to case A, responsive to case B" and the like, can be interpreted to include both cases, A and B, in some embodiments, A (A is performed regardless of B), in some embodiments, B (B is performed regardless of A), in some embodiments, selected from the group consisting of A and B (the selection between A and B is an option), in some embodiments, A and B (both A and B are performed).

[0165] In some embodiments, "A or B" and the like, can be interpreted to include both cases, A and B, in some embodiments, A (A is performed regardless of B), in some embodiments, B (B is performed regardless of A), in some embodiments, selected from the group consisting of A and B (the selection between A and B is an option).

[0166] In some embodiments, the prefix words "first", "second" and the like in the disclosure do not limit the position, order, priority, number or content of the described objects, and the description of the described objects should be understood in the context of the claims or embodiments, and should not be construed as redundant limitations. For example, the described object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified by them are in the same message or not, nor do they limit the order of "first field" and "second field". For another example, the described object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the number of described objects is not limited by ordinal words, and can be one or more. For example, "first device", where the number of "devices" can be one or more. In addition, objects modified by different prefix words can be the same or different, for example, the described object is "device", and "first device" and "second device" can be the same device or different devices, and their types can be the same or different; for another example, the described object is "information", and "first information" and "second information" can be the same information or different information, and their contents can be the same or different.

[0167] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0168] In some embodiments, the terms "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0169] In some embodiments, the terms "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above", and the like can be replaced with each other, and the terms "less than", "less than or equal to", "not greater than", "fewer than", "fewer than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below", and the like can be replaced with each other.

[0170] In some embodiments, the apparatuses and devices can be interpreted as entities, and can also be interpreted as virtual, and the names thereof are not limited to the names described in the embodiments, and in some cases can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", and the like.

[0171] In some embodiments, "network" can be interpreted as an apparatus included in the network, for example, an access network device, a core network device, and the like.

[0172] In some embodiments, the acquisition of data, information, and the like can comply with the laws and regulations of the country where the location is located.

[0173] In some embodiments, the data, information, and the like can be acquired after obtaining the consent of the user.

[0174] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0175] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure.

[0176] As shown in FIG. 1, the communication system 100 includes an access point device (AP) 101, a first station device (STA) 102, and a second STA 103.

[0177] In some embodiments, the access point device 101 can be an access point for a mobile terminal to enter a wired network. The AP is equivalent to a bridge connecting the wired network and the wireless network, and its main function is to connect various wireless network clients together and then access the Ethernet network through the wireless network. Specifically, the AP can be a terminal device or a network device with a wireless fidelity (Wi-Fi) chip. Optionally, the AP can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, 802.11bn, and the next generation 802.11 protocol, but is not limited thereto.

[0178] In some embodiments, the first STA 102 and the second STA 103 can be, for example, a wireless communication terminal including a wireless communication chip supporting Wi-Fi communication, a wireless sensor, or a wireless communication terminal. Optionally, the wireless communication terminal can be at least one of, for example, a mobile phone, a wearable device, an Internet of Things (IoT) device supporting Wi-Fi communication, a car with Wi-Fi communication function, a smart car, a tablet (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, and a wireless terminal device in smart home, but is not limited thereto.

[0179] Specifically, the first STA 102 and the second STA 103 can be a terminal device or a network device with a wireless fidelity (Wi-Fi) chip. Optionally, the first STA 102 and the second STA 103 can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, 802.11bn, and the next generation 802.11 protocol, but is not limited thereto.

[0180] Optionally, in the embodiments of the present disclosure, the AP and the STA can be devices supporting multi-link, for example, can be respectively denoted as an access point multi-link device (AP MLD) and a non-access point multi-link device (Non-AP MLD); the AP MLD can represent an access point supporting a multi-link communication function, and the non-AP MLD can represent a station supporting a multi-link communication function.

[0181] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed in the embodiments of the present disclosure. It can be known by those skilled in the art that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions proposed in the embodiments of the present disclosure are also applicable to similar technical problems.

[0182] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1 or part of the subjects, but are not limited thereto. The subjects shown in FIG. 1 are exemplary, and the communication system can include all or part of the subjects in FIG. 1, or other subjects other than FIG. 1. The number and form of each subject is arbitrary, each subject can be physical or virtual, the connection relationship between each subject is exemplary, each subject can not be connected or can be connected, and the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0183] The embodiments of the present disclosure can be applied to a wireless local area network (WLAN), for example, a local area network using an 802.11 series protocol. In the WLAN, a basic service set (BSS) is a basic component of a WLAN. A BSS network is composed of station devices having some association within a certain coverage area. One situation of association is that stations directly communicate with each other in an ad hoc network, which is referred to as an independent BSS (IBSS). Another more common situation is that there is only one central station having a full-time management BSS in the BSS network, which is referred to as an access point device, and other stations in the BSS network that are not APs are referred to as terminals, also referred to as non-AP STAs, and APs and non-AP STAs are collectively referred to as STAs. When describing STAs, it is not necessary to distinguish between APs and non-AP STAs. In the same BSS network, due to distance, transmission power, and the like, a STA cannot detect other STAs far away from it, and the two are each other's hidden nodes.

[0184] FIG. 2 is an interaction diagram of a frame exchange method according to an embodiment of the present disclosure. As shown in FIG. 2, the above method can include:

[0185] Step 201, an access point device AP determines a first wireless frame; wherein the first wireless frame includes at least one of: first padding information and second padding information;

[0186] The padding length of the first padding information corresponds to a time duration greater than or equal to a first padding delay; the padding length of the second padding information corresponds to a time duration greater than or equal to a first EMLSR (Enhanced Multi-Link Single Radio) padding delay.

[0187] The first padding delay includes: the maximum value of the padding delay required for a station device STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay includes: the maximum value of the EMLSR padding delay required for the STA to switch from the first operation mode to a second capability mode.

[0188] Optionally, a non-AP MLD operating in an EMLSR mode allows one or more links (which can also be referred to as EMLSR links) to be in an awake state for a listening operation by an affiliated non-AP STA. Wherein, the non-AP STA affiliated to the non-AP MLD operating in the EMLSR link performs the listening operation (hereinafter referred to as the non-AP STA operating in a first operation mode), which can specifically include: performing a clear channel assessment (CCA) on the EMLSR link where the non-AP STA is located, and detecting whether there is an initial control frame initiated by an AP MLD associated with the non-AP MLD on the EMLSR link.

[0189] Wherein, if a third non-AP STA affiliated to the non-AP MLD working in the EMLSR mode listens to the initial control frame initiated by the AP MLD associated with the non-AP MLD in the process of performing the listening operation, the third non-AP STA performs frame exchange with the AP MLD under the first EMLSR link. If a fourth non-AP STA affiliated to the non-AP MLD working in the EMLSR mode does not listen to the initial control frame initiated by the AP MLD associated with the non-AP MLD in the process of performing the listening operation, the fourth non-AP STA cannot perform the transceiving operation in the process of the third non-AP STA performing frame exchange with the AP MLD under the first EMLSR link. And after the third non-AP STA completes the frame exchange with the AP MLD under the first EMLSR link, the third non-AP STA switches back to the listening operation mode within a specified time (EMLSR Transition Delay). In this way, in the EMLSR mode, the inter-MLD communication quality can be ensured while reducing the energy consumption of the non-AP MLD, avoiding unnecessary energy consumption caused by long-time opening of all links of the non-AP MLD.

[0190] Ultra High Reliability (UHR) studied by Wi-Fi technology aims to improve the reliability of Wireless Local Area Networks (WLAN) connection, reduce delay, improve manageability, increase throughput at different Signal to Noise Ratio (SNR) levels and reduce device-level power consumption, etc. Most devices supporting UHR transmission protocol are MLD-level devices. When the AP (referred to as UHR AP) supporting UHR transmission protocol and the STA (referred to as UHR STA) supporting UHR transmission protocol adopt multi-connection mode for data transmission, the power saving mechanism needs to be further enhanced. Based on this, a new communication mode is proposed, that is, when the wireless station device and the mobility access point device do not need to perform data transmission, the wireless station device (or the mobility access point device) is controlled to work in a lower capability mode; when the wireless station device and the mobility access point device need to perform data transmission, the wireless station device (or the mobility access point device) can be controlled to work in a higher capability mode (i.e. switching from the lower capability mode to the higher capability mode, being in the frame exchange state to further perform frame exchange) through the initial control frame. In this way, the energy consumption of the device end can be further reduced without affecting the communication quality.

[0191] Optionally, before sending the initial control frame, the length of the initial control frame can be extended by setting the length of the padding field of the initial control frame, so as to reserve more time for the receiving end of the initial control frame to respond to the initial control frame. Wherein, responding to the initial control frame can include: switching the communication mode (switching from a lower capability mode to a higher capability mode), and sending a corresponding frame to the sending end of the initial control frame.

[0192] (1) In the case where the non-AP STA works in the EMLSR link and is in the Listening Operation mode, when the AP sends an initial control frame to trigger the non-AP STA to perform frame exchange in the link, the length of the padding field in the initial control frame can be set according to the time delay (EMLSR padding delay) required for the non-AP STA to switch from the Listening Operation mode to a higher capability mode (The AP affiliated with the AP MLD shall set the length of the Padding field of the initial Control frame based on the rules defined in 35.5.2.2.3 (Padding for a Trigger frame) to ensure that the MAC padding duration of the initial Control frame is greater than or equal to the EMLSR padding delay last indicated by the non-AP MLD either in the EMLSR Padding Delay subfield of the EML Capabilities subfield in the Common Info field of the Basic Multi-Link element or in the EMLSR Padding Delay subfield of the EMLSR Parameter Update field in the last successfully transmitted EML Operating Mode Notification frame.) so that the non-AP STA has enough time to respond to the initial control frame.

[0193] (2) In the case that the non-AP STA is operating in the EMLSR link and is in the lower communication mode, when the AP sends an initial control frame to trigger the non-AP STA to perform frame exchange in the link, the length of the padding field in the initial control frame can be set according to the time delay required for the non-AP STA to switch from the lower communication mode to the higher capability mode, so that the non-AP STA has enough time to respond to the initial control frame.

[0194] Since for the same communication parameter, the parameter value of the lower capability mode under the communication parameter is lower than the parameter value of the Listening Operation mode under the communication parameter, and is lower than the parameter value of the higher capability mode under the communication parameter. The process of the non-AP STA switching from the lower communication mode to the higher capability mode can be regarded as two processes: process 1, the non-AP STA switches from the lower capability mode to the Listening Operation mode after receiving the initial control frame; process 2: the non-AP STA switches from the Listening Operation mode to the higher capability mode to perform subsequent frame exchange operations. Among them, process 1 and process 2 can be executed in parallel, or can be executed sequentially.

[0195] Based on the above, on the one hand, in actual application, since the process 1 involves switching of bandwidth, the time length required by the process 1 is usually greater than the time length required by the process 2. On the other hand, when a plurality of non-AP STAs associated with the AP all work in the EMLSR link, and some non-AP STAs work in a lower capability mode and some non-AP STAs work in a listening operation mode, if the AP needs to perform frame exchange with all the non-AP STAs associated with the AP, since time alignment of switching of all the non-AP STAs from the current communication mode to the higher capability mode cannot be ensured, it is necessary to trigger each non-AP STA to perform frame exchange respectively, which is relatively cumbersome. Under the premise, if the AP triggers all the non-AP STAs associated with the AP and working in the EMLSR link to perform frame exchange through an initial control frame, in addition to ensuring the transmission delay indicated by the EMLSR Padding Delay, the time required by the non-AP STA in the lower capability mode to perform the process 1 also needs to be considered, so that all the non-AP STAs associated with the AP and working in the EMLSR link can respond to the initial control frame. On the other hand, when the time delay required by the process 1 is included in the initial control frame, if the non-AP STA supports a transmission protocol before the UHR transmission protocol (the non-AP STA can also be referred to as a Pre-UHR non-AP STA), the initial control frame can not be parsed, so that frame exchange cannot be performed and transmission fails.

[0196] Therefore, it is necessary to improve the current frame exchange mechanism. In the embodiments of the present disclosure, the initial control frame is improved, so that after the non-AP STA receives the initial control frame, the corresponding state switching can be performed, and strong backward compatibility can also be achieved, so that the non-AP STA associated with the AP can respond to the initial control frame.

[0197] Specifically, in the embodiments of the present disclosure, the AP determines a first wireless frame; carries at least one of first padding information and second padding information through the first wireless frame, guarantees that the padding length of the first padding information is greater than the maximum value of the padding delay required for the STA associated with the AP to switch from the first capability mode to the first operation mode, guarantees that the padding length of the second padding information is greater than the maximum value of the EMLSR padding delay required for the STA to switch from the first operation mode to the second capability mode, and does not limit whether the STA is a UHR non-AP STA or a Pre-UHR non-AP STA; in this way, after the AP sends the first wireless frame to the STA, the STA associated with the AP has enough time to switch from the first capability mode to the second capability mode, or from the first operation mode to the second capability mode, so as to trigger the frame exchange and response alignment of multiple STAs associated with the AP through the same wireless frame, has good backward compatibility, and is beneficial to power saving of the multiple STAs associated with the AP in different power saving modes.

[0198] Optionally, the above-mentioned lower capability mode can also be referred to as a first capability mode, a first capability communication mode, a first power mode, a low-energy communication mode, a low-capability communication mode, a low-power communication mode, a listening mode, or a low-power communication phase, etc. proposed in the embodiments of the present disclosure, and the embodiments of the present disclosure do not limit the name. The above-mentioned higher capability mode can also be referred to as a second capability mode, a second capability communication mode, a second power mode, a high-energy capability communication mode, a high-capability communication mode, a high-power communication mode, etc. proposed in the embodiments of the present disclosure, and the embodiments of the present disclosure do not limit the name. The first operation mode can be referred to as a Listening Operation mode in the above-mentioned EMLSR mode.

[0199] Optionally, the communication parameters corresponding to the first capability mode or the second capability mode can include but are not limited to bandwidth (bandwidth, referred to as BW for short), supported MCS (Modulation and Coding Scheme, modulation and coding strategy) mode (such as MCS index value), NSS (number of Spatial Stream, number of spatial streams), etc.

[0200] As an example, assuming that in the first capability mode, the device supports a working bandwidth of 20 MHz (Mega Hertz, MHz), in the second capability mode, the device can support a working bandwidth greater than 20 MHz, for example, can be any one or more of 40 MHz, 80 MHz, 160 MHz or 320 MHz.

[0201] Optionally, in the first capability mode, the device supports a working bandwidth of 20MHz basic bandwidth (i.e., BW=20MHz), the number of SS is 1 (i.e., NSS=1), the value of the MCS index is up to 6, i.e., the value of the MCS index can be any value from 0 to 6, for example, the value of the MCS index is 5, etc. In the second capability mode, the device supports a bandwidth greater than or equal to 20MHz, for example, can be any one or more of 40MHz, 80MHz, 160MHz or 320MHz, the number of SS can be greater than or equal to 2, the MCS index can be greater than or equal to 6, etc.

[0202] Optionally, in a communication mode, the MCS information supported by the device is associated with a plurality of communication parameters, for example, the communication parameters associated with the MCS information can include, but are not limited to, at least one of the following: NSS, modulation mode supported by each spatial stream, coding rate, BW, device transmission resource type (e.g., resource unit RU, multiple resource unit (MRU), distributed resource unit (dRU), UEQM, etc.), whether the device supports BW punctured channel mode, and the punctured channel density supported by the device.

[0203] For example, for each communication parameter, whether the device supports each specific parameter value thereof, for example, for NSS, the maximum NSS supported by the device can be 4, or 8 or 16. For example, for modulation mode, the modulation mode supported by one spatial stream of the device can be at least one of the following: binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 16-quadrature amplitude modulation (QAM), 64-QAM, 256-QAM, 1024-QAM and 4096-QAM. For example, for coding rate, the coding rate supported by one spatial stream of the device can be 1 / 2, 2 / 3, 3 / 4, 5 / 6. For example, for BW, the BW supported by the device can be at least one of the following: 20MHz, 40MHz, 80MHz, 160MHz and 320MHz. When the device supports BW punctured channel mode, the punctured channel density supported by the device can be at least one of the following: 20MHz, 40MHz, 80MHz, 160MHz, 320MHz.

[0204] For a device, the MCS information supported by the device can refer to Table 1.

[0205] Table 1

[0206] As shown in Table 1, in Table 1, n, n+1, n+2, n+3, n+4, etc. are only examples and are used to identify the difference between each row. The specific values need to be adjusted according to the actual situation. In each row, the corresponding NSS, modulation, coding rate, transmission resource type, BW, whether to support puncturing, and puncturing channel density of the device can be combined at will, and the corresponding MCS index value is different under different combinations. For example, in the first row, the MCS index values corresponding to different combinations can be t, t+1, t+2, …, etc.

[0207] Optionally, the STA can be a STA supporting the UHR transmission protocol or a STA supporting the transmission protocol before the UHR transmission protocol (the non-AP STA can also be referred to as a Pre-UHR non-AP STA), and the embodiments of the present disclosure do not limit this. Optionally, the embodiments of the present disclosure take the STA supporting the transmission protocol before the UHR transmission protocol as the STA supporting the EHT transmission protocol (i.e., EHT non-AP STA) as an example for description.

[0208] Optionally, in the case of the STA being a UHR non-AP STA, the STA can work in the Listening Operation mode under the EMLSR mode, or can work in a lower capability mode. Specifically:

[0209] In the case of the STA being a UHR non-AP STA and working in a lower capability mode, the switching delay (i.e., the delay required for the STA to switch from the current communication mode to the second capability mode for frame exchange operation, which can be referred to as the minimum MAC padding time in the embodiments of the present disclosure) corresponding to the STA can include: the padding delay required for the UHR non-AP STA to switch from the first capability mode to the Listening Operation mode, and the EMLSR padding delay required for the UHR non-AP STA to switch from the Listening Operation mode to the second capability mode.

[0210] In a case where the STA is a UHR non-AP STA and operates in the Listening Operation mode, the switching delay corresponding to the STA can include a UHR EMLSR padding delay required for the UHR non-AP STA to switch from the Listening Operation mode to the second capability mode.

[0211] In a case where the STA is an EHT non-AP STA and operates in the Listening Operation mode, the switching delay corresponding to the STA can include an EHT EMLSR padding delay required for the EHT non-AP STA to switch from the Listening Operation mode to the second capability mode.

[0212] Optionally, the AP can determine a maximum value of all padding delays required for all STAs associated with the AP to switch from the first capability mode to the first operation mode, determine the maximum value as the first padding delay, and set the padding length of the first padding information according to the value of the first padding delay, on the premise that the length corresponding to the padding length of the first padding information is greater than or equal to the first padding delay.

[0213] Similarly, the AP can determine a maximum value of all EMLSR padding delays required for all STAs associated with the AP to switch from the first operation mode to the second capability mode, determine the maximum value as the first EMLSR padding delay, and set the padding length of the second padding information according to the value of the first EMLSR padding delay, on the premise that the length corresponding to the padding length of the second padding information is greater than or equal to the first EMLSR padding delay.

[0214] Optionally, in actual application, in order to reduce the length of the first wireless frame as much as possible, the length corresponding to the padding length of the first padding information is equal to the first padding delay, and the length corresponding to the padding length of the second padding information is equal to the first EMLSR padding delay.

[0215] Optionally, in the embodiments of the present disclosure, the first wireless frame is used to trigger at least two STAs operating in an EMLSR link to perform frame exchange, and at least one STA of the at least two STAs operates in the first capability mode.

[0216] The first operation mode comprises a listening operation mode under the EMLSR link.

[0217] For any one of the at least one communication parameter, the parameter value of the first operation mode is greater than the parameter value of the first capability mode and less than the parameter value of the second capability mode.

[0218] Optionally, the first wireless frame can be a trigger frame, for example, the first wireless frame can be a MU-RTS Trigger frame or a BSRP Trigger frame.

[0219] Optionally, by sending the first wireless frame, frame exchange of at least two STAs associated with the AP and operating under the EMLSR link can be triggered, and at least one of the at least two STAs operates in the first capability mode. That is, the first wireless frame can be sent on the basis of satisfying the first condition, wherein the first condition comprises that the STAs associated with the AP and operating under the EMLSR link comprise at least two STAs, and at least one of the at least two STAs operates in the first capability mode.

[0220] Optionally, the first wireless frame comprises a special user info field (info is an abbreviation of information) and a common info field, the special user info field comprises a first identification field, and the first padding information is carried in the first identification field; the common info field comprises a second identification field, and the second padding information is carried in the second identification field.

[0221] The first identification field can comprise a UHR Padding field, and the second identification field can comprise a Padding field. In actual application, the specific fields of the first identification field and the second identification field can also be set according to actual needs, and the embodiments of the present disclosure do not limit this.

[0222] In step 202, the AP sends the first wireless frame. Correspondingly, the STAs associated with the AP can receive the first wireless frame.

[0223] After the AP sends the first wireless frame to the STA, and the STA associated with the AP receives the first wireless frame sent by the AP, the STA can switch from the first capability mode to the second capability mode, or switch from the first operation mode to the second operation mode within the time length corresponding to the padding length of the first padding information and / or the time length corresponding to the padding length of the second padding information, so as to realize that the frame exchange between the STA and the AP can be realized without affecting the power saving of the STA in different power saving modes.

[0224] Optionally, before step 201 (i.e., the AP determines the first wireless frame), the method can further include the following steps as shown in FIG. 3:

[0225] Step 301 (not shown in the figure), the STA associated with the AP determines a second wireless frame, and the STA corresponding transmission delay is carried in the second wireless frame. The STA includes the first STA or the second STA.

[0226] Optionally, the first STA can include a non-AP STA supporting the UHR transmission protocol, and the second STA can include an STA supporting a transmission protocol before the UHR transmission protocol. In the embodiment of the present disclosure, the second STA includes a non-AP STA supporting the EHT transmission protocol as an example.

[0227] Optionally, step 301 can include step 301a and / or step 301b.

[0228] Step 301a, the first STA determines a second wireless frame; wherein the second wireless frame includes at least one of the following parameters:

[0229] The first padding delay required for the first STA to switch from the first capability mode to the first operation mode;

[0230] The second EMLSR padding delay required for the first STA to switch from the first operation capability mode to the second capability mode;

[0231] The first Transition delay required for the first STA to switch from the second capability mode to the first operation mode after the frame exchange between the first STA and the AP;

[0232] The second Transition delay required for the first STA to switch from the first operation mode to the first capability mode after the frame exchange between the first STA and the AP.

[0233] As described above, in the case that the STA is a UHR non-AP STA, the STA can work in the first capability mode or the first operation mode.

[0234] In the case that the STA is a UHR non-AP STA and works in the first capability mode, the switching delay corresponding to the STA can include: a padding delay required by the UHR non-AP STA for switching from the first capability mode to the Listening Operation mode, and an EMLSR padding delay required by the UHR non-AP STA for switching from the Listening Operation mode to the second capability mode. Correspondingly, the second wireless frame determined by the first STA can include: a first padding delay required by the first STA for switching from the first capability mode to the first operation mode; a second EMLSR padding delay required by the first STA for switching from the first operation capability mode to the second capability mode; a first Transition delay required by the first STA for switching from the second capability mode to the first operation mode after frame exchange with the AP; and a second Transition delay required by the first STA for switching from the first operation mode to the first capability mode after frame exchange with the AP.

[0235] In the case that the STA is a UHR non-AP STA and works in the Listening Operation mode, the switching delay corresponding to the STA can include: an EMLSR padding delay required by the UHR non-AP STA for switching from the Listening Operation mode to the second capability mode. Correspondingly, the second wireless frame determined by the first STA can include: a second EMLSR padding delay required by the first STA for switching from the first operation capability mode to the second capability mode; and a first Transition delay required by the first STA for switching from the second capability mode to the first operation mode after frame exchange with the AP.

[0236] Optionally, the “first” and “second” in the first padding delay, the second EMLSR padding delay, the first Transition delay and the second Transition delay are used to distinguish the functions of different delays, and the specific indicated parameter values need to be determined according to the mode in which the STA works, which is not limited in the embodiments of the present disclosure.

[0237] Step 301b, the second STA determines a second wireless frame; wherein the second wireless frame includes at least one of the following parameters:

[0238] a third EMLSR padding delay required for the second STA to switch from the first operation mode to the second capability mode;

[0239] a third Transition delay required for the second STA to switch from the second capability mode to the first operation mode after the frame exchange with the AP.

[0240] According to the above, in the case that the STA is an EHT non-AP STA and works in the Listening Operation mode, the switching delay corresponding to the STA can include an EMLSR padding delay required for the EHT non-AP STA to switch from the Listening Operation mode to the second capability mode. Accordingly, the second wireless frame determined by the second STA can include a third EMLSR padding delay required for the second STA to switch from the first operation mode to the second capability mode, and a third Transition delay required for the second STA to switch from the second capability mode to the first operation mode after the frame exchange with the AP.

[0241] Optionally, the "third" in the third EMLSR padding delay and the third Transition delay is also used to distinguish the functions of different delays, and the specific indicated parameter value needs to be determined according to the mode in which the STA works, which is not limited in the embodiments of the present disclosure.

[0242] Optionally, the execution order of steps 301a and 301b is not limited in the embodiments of the present disclosure, and steps 301a and 301b can be executed simultaneously or sequentially.

[0243] Step 302 (not shown in the figure), the STA associated with the AP sends a second wireless frame to the AP.

[0244] Optionally, step 301 can include step 302a and / or step 302b.

[0245] Step 302a, the first STA sends the determined second wireless frame to the AP.

[0246] Step 302b, the second STA sends the determined second wireless frame to the AP.

[0247] Optionally, the execution order of steps 302a and 302b is not limited in the embodiments of the present disclosure.

[0248] Optionally, according to the above, the STA associated with the AP includes the first STA or the second STA, so that the second wireless frame received by the AP includes at least one of the following parameters:

[0249] a first padding delay required for the first STA to switch from the first capability mode to the first operation mode;

[0250] a second EMLSR padding delay required for the first STA to switch from the first operation capability mode to the second capability mode;

[0251] a first Transition delay required for the first STA to switch from the second capability mode to the first operation mode after the frame exchange with the AP;

[0252] a second Transition delay required for the first STA to switch from the first operation mode to the first capability mode after the frame exchange with the AP;

[0253] a third EMLSR padding delay required for the second STA to switch from the first operation mode to the second capability mode;

[0254] a third Transition delay required for the second STA to switch from the second capability mode to the first operation mode after the frame exchange with the AP.

[0255] Optionally, in the embodiments of the present disclosure, referring to FIG. 3, after step 201 (i.e., the AP determines the first wireless frame), the method further includes:

[0256] Step 303 (not shown in the figure), the STA associated with the AP switches from the current communication mode of the STA to the second communication mode based on the first padding information and / or the second padding information in the first wireless frame.

[0257] Optionally, the STA associated with the AP can select the first padding information and / or the second padding information in the first wireless frame to switch from the current communication mode of the STA to the second communication mode based on the communication mode of the STA before receiving the first wireless frame.

[0258] Optionally, step 303 includes at least one of step 303a, step 303b and step 303c, wherein step 303a and step 303b can be operations performed by the first STA, and step 303c can be an operation performed by the second STA.

[0259] Step 303a, in the case that the first STA works in the first capability mode before receiving the first wireless frame, the first STA switches from the first capability mode to the first operation mode based on the first padding information, and switches from the first operation mode to the second capability mode based on the second padding information.

[0260] Optionally, referring to the above, in the case that the STA is a UHR non-AP STA and works in the first capability mode, the STA needs to experience two processes to switch from the current communication mode to the second capability communication mode: process 1, the UHR non-AP STA switches from the first capability mode to the first operation mode (i.e. the Listening Operation mode), and the UHR non-AP STA switches from the first operation mode to the second capability mode. In this regard, when performing the switching operation corresponding to process 1, the first STA can switch from the first capability mode to the first operation mode within the time length indicated by the first padding information (which is greater than or equal to the maximum value of the padding delay required for the STA associated with the AP to switch from the first capability mode to the first operation mode); and switch from the first operation mode to the second capability mode within the time length indicated by the second padding information (which is greater than or equal to the maximum value of the padding delay required for the STA associated with the AP to switch from the first capability mode to the first operation mode; the first EMLSR padding delay includes the maximum value of the EMLSR padding delay required for the STA to switch from the first operation mode to the second capability mode).

[0261] Optionally, in the embodiments of the present disclosure, the switching from the first capability mode to the first operation mode includes: switching the parameter value of the first capability mode under the first communication parameter to the parameter value of the first operation mode under the first communication parameter, the first communication parameter including at least one of: a bandwidth, a transmitting radio frequency link and a receiving radio frequency link.

[0262] The switching from the first operation mode to the second capability mode includes: switching the parameter value of the first operation mode under the second communication parameter to the parameter value of the second capability mode under the second communication parameter, the second communication parameter including at least one of: a transmitting radio frequency link and a receiving radio frequency link.

[0263] Optionally, when the STA switches from the first capability mode to the first operation mode, the parameter value of the first capability mode under the first communication parameter needs to be switched to the parameter value of the first operation mode under the first communication parameter in at least one of the bandwidth, the transmitting radio frequency link, the receiving radio frequency link, and the like. When the STA switches from the first operation mode to the second capability mode, the parameter value of the first operation mode under the second communication parameter needs to be switched to the parameter value of the second capability mode under the second communication parameter in at least one of the transmitting radio frequency link, the receiving radio frequency link, and the like.

[0264] Optionally, since the process of switching from the first capability mode to the first operation mode involves switching of the bandwidth, compared to the process of switching from the first operation mode to the second operation mode, the time length required for switching from the first capability mode to the first operation mode is generally greater than the time length required for switching from the first operation mode to the second operation mode.

[0265] Step 303b, before the first STA receives the first wireless frame, the first STA switches from the first operation mode to the second capability mode based on the second padding information, in a case where the first STA operates in the first operation mode.

[0266] Optionally, referring to the above, in a case where the STA is a UHR non-AP STA and operates in the first operation mode, the STA can directly switch from the current communication mode to the second capability communication mode. In this regard, the first STA can switch from the first operation mode to the second capability mode within the time length indicated by the second padding information (greater than or equal to the maximum value of the padding delay required for the STA associated with the AP to switch from the first capability mode to the first operation mode; the first EMLSR padding delay includes the maximum value of the EMLSR padding delay required for the STA to switch from the first operation mode to the second capability mode).

[0267] Step 303c, the second STA switches from the first operation mode to the second capability mode based on the second padding information.

[0268] Optionally, referring to the above, in the case that the STA is an EHT non-AP STA and operates in the first operation mode, the STA can directly switch from the current communication mode to the second capability communication mode. In this regard, the second STA can switch from the first operation mode to the second capability mode within the time length indicated by the second padding information (greater than or equal to the maximum value of the padding delay required for the STA associated with the AP to switch from the first capability mode to the first operation mode; the first EMLSR padding delay includes: the maximum value of the EMLSR padding delay required for the STA to switch from the first operation mode to the second capability mode).

[0269] Optionally, the execution order of steps 303a, 303b and 303c is not limited in the embodiments of the present disclosure, and the three can be executed simultaneously or in a certain order.

[0270] Step 304 (not shown in the figure), after the STA associated with the AP switches from the current communication mode of the STA to the second communication mode, the STA associated with the AP sends a third wireless frame to the AP, and the third wireless frame identifies that the STA switches to the second capability mode and waits for data transmission.

[0271] Optionally, the third wireless frame can include an acknowledgement frame, for example, the third wireless frame can include a CTS (clear-to-send, clear-to-send frame).

[0272] Optionally, after the STA switches to the second capability mode, the CTS frame can be sent to the AP after an interval of one SIFS (Short Interframe Space, short interframe space).

[0273] Optionally, step 304 includes step 304a and / or step 304b.

[0274] Step 304a, the first STA sends a third wireless frame to the AP; wherein the third wireless frame identifies that the first STA switches to the second capability mode and waits for data transmission. Correspondingly, the AP receives the third wireless frame sent by the first STA.

[0275] Step 304b, the second STA sends a third wireless frame to the AP; wherein the third wireless frame identifies that the second STA switches to the second capability mode and waits for data transmission. Correspondingly, the AP receives the third wireless frame sent by the second STA.

[0276] Optionally, the execution order of steps 304a and 304b is not limited in the embodiments of the present disclosure.

[0277] Step 305 (not shown in the figure), after the STA associated with the AP completes the frame exchange with the AP, the STA associated with the AP switches back to the communication mode before the STA receives the first wireless frame.

[0278] Optionally, in the case that the first STA operates in the first capability mode before receiving the first wireless frame, after the first STA completes the frame exchange with the AP, the first STA needs to switch from the second capability mode to the first operation mode, and then switch from the first operation mode to the first capability mode.

[0279] In the case that the first STA operates in the first operation mode before receiving the first wireless frame, after the first STA completes the frame exchange with the AP, the first STA needs to switch from the first operation mode to the first capability mode.

[0280] After the second STA completes the frame exchange with the AP, the second STA switches from the second capability mode to the first operation mode.

[0281] Optionally, after the STA completes the frame exchange with the AP, the STA can switch back to the communication mode before the STA receives the first wireless frame from the second capability mode according to the time length required for the STA itself to switch back to the communication mode before the STA receives the first wireless frame from the second capability mode. The specific switching process is symmetrical to the switching process of the STA from the communication mode before the first wireless frame to the second capability mode, and the embodiments of the present disclosure do not limit this.

[0282] Optionally, step 305 includes at least one of step 305a, step 305b and step 305c, wherein step 305a and step 305b can be operations performed by the first STA, and step 305c can be an operation performed by the second STA.

[0283] Step 305a, in the case that the first STA operates in the first capability mode before receiving the first wireless frame, after the first STA completes the frame exchange with the AP, the first STA switches from the second capability mode to the first operation mode after the time length indicated by the first Transition delay, and then switches from the first operation mode to the first capability mode after the time length indicated by the second Transition delay.

[0284] Step 305b, in the case that the first STA operates in the first operation mode before receiving the first wireless frame, after the first STA completes the frame exchange with the AP, the first STA switches from the first operation mode to the first capability mode after the time length indicated by the second Transition delay.

[0285] Step 305c, after the second STA completes the frame exchange with the AP, the second STA switches from the second capability mode to the first operation mode after the third transition delay indicates the duration.

[0286] Optionally, the disclosure embodiments do not limit the execution order of steps 305a, 305b and 305c.

[0287] In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and the terms of "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "bit", "data", "program", "chip", and the like can be replaced with each other.

[0288] In some embodiments, the terms of "time", "time point", "time", "time position", and the like can be replaced with each other, and the terms of "duration", "period", "time window", "window", "time", and the like can be replaced with each other.

[0289] In some embodiments, the terms of "wireless access scheme", "waveform", and the like can be replaced with each other.

[0290] In some embodiments, the terms of "certain", "preset", "preset", "set", "indicated", "certain", "arbitrary", "first", and the like can be replaced with each other, and "certain A", "preset A", "preset A", "set A", "indicated A", "certain A", "arbitrary A", "first A" can be interpreted as A specified in advance in a protocol and the like, or A obtained by setting, configuration, or indication, or A such as certain A, certain A, arbitrary A, or first A, but is not limited thereto.

[0291] In some embodiments, the determination or judgment can be performed by a value (0 or 1) represented by 1 bit, or by a true or false value (Boolean value) represented by true or false, or by comparison of a numerical value (for example, comparison with a predetermined value), but is not limited thereto.

[0292] In some embodiments, “not expecting to receive” can be interpreted as not receiving on the time domain resource and / or the frequency domain resource, and / or as not performing subsequent processing on the data, etc. after receiving the data, etc.; “not expecting to send” can be interpreted as not sending, and / or as sending but not expecting a response from the receiving party to the content of the sending.

[0293] The frame exchange method related by the embodiments of the present disclosure can comprise the foregoing steps and at least one of the embodiments. For example, step 201 can be implemented as an independent embodiment, step 202 can be implemented as an independent embodiment, step 301 can be implemented as an independent embodiment, step 301a can be implemented as an independent embodiment, step 301b can be implemented as an independent embodiment, step 302 can be implemented as an independent embodiment, step 302a can be implemented as an independent embodiment, step 302b can be implemented as an independent embodiment, step 303 can be implemented as an independent embodiment, step 303a can be implemented as an independent embodiment, step 303b can be implemented as an independent embodiment, step 303c can be implemented as an independent embodiment, step 304 can be implemented as an independent embodiment, step 304a can be implemented as an independent embodiment, step 304b can be implemented as an independent embodiment, step 305 can be implemented as an independent embodiment, step 305a can be implemented as an independent embodiment, step 305b can be implemented as an independent embodiment, step 305c can be implemented as an independent embodiment.The combination of step 201 and step 202 can be implemented as an independent embodiment, the combination of step 201, step 202 and step 301 can be implemented as an independent embodiment, the combination of step 201, step 202, step 301 and step 302 can be implemented as an independent embodiment, the combination of step 201, step 202, step 301, step 302 and step 303 can be implemented as an independent embodiment, the combination of step 201, step 202, step 301, step 302, step 303 and step 304 can be implemented as an independent embodiment, the combination of step 201, step 202, step 301, step 302, step 303, step 304 and step 305 can be implemented as an independent embodiment, the combination of step 201, step 202 and step 301a can be implemented as an independent embodiment, the combination of step 201, step 202 and step 301b can be implemented as an independent embodiment, the combination of step 201, step 202, step 301a and step 302a can be implemented as an independent embodiment, the combination of step 201, step 202, step 301b and step 302b can be implemented as an independent embodiment, the combination of step 201, step 202, step 301a, step 302a and step 303a can be implemented as an independent embodiment, the combination of step 201, step 202, step 301a, step 302a and step 303b can be implemented as an independent embodiment, the combination of step 201, step 202, step 301b, step 302b and step 303c can be implemented as an independent embodiment, the combination of step 201, step 202, step 301a, step 302a, step 303a and step 304a can be implemented as an independent embodiment, the combination of step 201, step 202, step 301a, step 302a, step 303b and step 304a can be implemented as an independent embodiment, the combination of step 201, step 202, step 301b, step 302b, step 303c and step 304b can be implemented as an independent embodiment, the combination of step 201, step 202, step 301a, step 302a, step 303a, step 304a and step 305a can be implemented as an independent embodiment, the combination of step 201, step 202, step 301a, step 302a, step 303b, step 304a and step 305b can be implemented as an independent embodiment, the combination of step 201, step 202, step 301b, step 302b, step 303c, step 304b and step 305b can be implemented as an independent embodiment, but are not limited thereto.

[0294] In some embodiments, other optional implementations described before or after the description corresponding to FIG. 2 can be referred to.

[0295] FIG. 4 is a flow diagram of a frame exchange method according to an embodiment of the present disclosure.

[0296] As shown in FIG. 4, the above method can be applied to an access point device AP, and the above method comprises:

[0297] At step 401, the AP determines a first wireless frame; wherein the first wireless frame comprises at least one of first padding information and second padding information.

[0298] A length of the first padding information corresponds to a time duration greater than or equal to a first padding delay; a length of the second padding information corresponds to a time duration greater than or equal to a first enhanced multi-link single radio-padding delay (EMLSR padding delay).

[0299] The first padding delay comprises a maximum value of padding delay required for a station device STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay comprises a maximum value of EMLSR padding delay required for the STA to switch from the first operation mode to a second capability mode.

[0300] Optionally, in an embodiment of the present disclosure, the first wireless frame is used to trigger at least two STAs working in an EMLSR link to perform frame exchange, and at least one of the at least two STAs works in a first capability mode.

[0301] The first operation mode comprises a listening operation mode in the EMLSR link.

[0302] For any one of the at least one communication parameter, a parameter value of the first operation mode is greater than a parameter value of the first capability mode and less than a parameter value of the second capability mode.

[0303] The optional implementation of step 401 can refer to the optional implementation of step 201 of FIG. 2 and other associated parts in the embodiments involved in FIG. 2, which will not be repeated here.

[0304] At step 402, the AP sends the first wireless frame.

[0305] The optional implementation of step 402 can refer to the optional implementation of step 202 of FIG. 2 and other associated parts in the embodiments involved in FIG. 2, which will not be repeated here.

[0306] Optionally, before the AP determines the first wireless frame, the method further includes:

[0307] The AP receives a second wireless frame sent by a STA; the STA includes a first STA or a second STA; wherein the second wireless frame includes at least one of the following parameters:

[0308] A first padding delay required for the first STA to switch from the first capability mode to the first operation mode;

[0309] A second EMLSR padding delay required for the first STA to switch from the first operation capability mode to the second capability mode;

[0310] A first transition delay required for the first STA to switch from the second capability mode to the first operation mode after frame exchange with the AP;

[0311] A second transition delay required for the first STA to switch from the first operation mode to the first capability mode after frame exchange with the AP;

[0312] A third EMLSR padding delay required for the second STA to switch from the first operation mode to the second capability mode;

[0313] A third transition delay required for the second STA to switch from the second capability mode to the first operation mode after frame exchange with the AP.

[0314] Optionally, after the AP sends the first wireless frame, the method further includes:

[0315] The AP receives a third wireless frame sent by the first STA; the third wireless frame identifies that the first STA switches to the second capability mode and waits for data transmission;

[0316] And / or

[0317] The AP receives a fourth wireless frame sent by the second STA; the fourth wireless frame identifies that the second STA switches to the second capability mode and waits for data transmission.

[0318] The frame exchange method related to the embodiments of the present disclosure can include the foregoing steps and at least one of the embodiments. For example, step 401 can be implemented as an independent embodiment, step 402 can be implemented as an independent embodiment; the combination of step 401 and step 402 can be implemented as an independent embodiment, but is not limited thereto.

[0319] In some embodiments, other optional implementations described before or after the corresponding description of FIG. 4 can be referred to.

[0320] FIG. 5 is a second flow diagram of a frame exchange method according to an embodiment of the present disclosure.

[0321] As shown in FIG. 5, the above method can be applied to the first STA, and the above method includes:

[0322] In step 501, the first STA receives a first wireless frame sent by an AP; wherein the first wireless frame includes at least one of first padding information and second padding information.

[0323] The padding length of the first padding information corresponds to a time length greater than or equal to a first padding delay; and the padding length of the second padding information corresponds to a time length greater than or equal to a first EMLSR padding delay.

[0324] The first padding delay includes a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay includes a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode.

[0325] The STA includes the first STA.

[0326] Optionally, in an embodiment of the present disclosure, the first wireless frame is used to trigger at least two STAs working in an EMLSR link to perform frame exchange, and at least one of the at least two STAs works in a first capability mode.

[0327] The first operation mode includes a Listening Operation mode in the EMLSR link.

[0328] For any communication parameter in the at least one communication parameter, the parameter value of the first operation mode is greater than the parameter value of the first capability mode and less than the parameter value of the second capability mode.

[0329] Optional implementations of step 501 can refer to optional implementations of steps 201 and 202 of FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be described here.

[0330] Optionally, in an embodiment of the present disclosure, before the first STA receives the first wireless frame sent by the AP, the method further includes:

[0331] the first STA determines a second wireless frame;

[0332] the first STA sends the second wireless frame to the AP;

[0333] wherein the second wireless frame comprises at least one of the following parameters:

[0334] a first padding delay required for the first STA to switch from the first capability mode to the first operation mode;

[0335] a second EMLSR padding delay required for the first STA to switch from the first operation capability mode to the second capability mode;

[0336] a first Transition delay required for the first STA to switch from the second capability mode to the first operation mode after the frame exchange between the first STA and the AP;

[0337] a second Transition delay required for the first STA to switch from the first operation mode to the first capability mode after the frame exchange between the first STA and the AP.

[0338] Optionally, in the embodiments of the present disclosure, after the first STA receives the first wireless frame sent by the AP, the method further comprises any one of the following:

[0339] in the case that the first STA works in the first capability mode before receiving the first wireless frame, the first STA switches from the first capability mode to the first operation mode based on the first padding information, and switches from the first operation mode to the second capability mode based on the second padding information;

[0340] in the case that the first STA works in the first operation mode before receiving the first wireless frame, the first STA switches from the first operation mode to the second capability mode based on the second padding information.

[0341] Optionally, in the embodiments of the present disclosure, after the first STA switches from the first operation mode to the second capability mode, the method further comprises:

[0342] the first STA sends a third wireless frame to the AP, wherein the third wireless frame indicates that the first STA switches to the second capability mode and waits for data transmission.

[0343] Optionally, in the embodiments of the present disclosure, after the first STA completes the frame exchange with the AP, the method further comprises any one of the following:

[0344] in a case that the first STA operates in the first capability mode before receiving the first wireless frame, switching, by the first STA, from the second capability mode to the first operation mode after a time length indicated by the first Transition delay; and switching, by the first STA, from the first operation mode to the first capability mode after a time length indicated by the second Transition delay.

[0345] in a case that the first STA operates in the first operation mode before receiving the first wireless frame, switching, by the first STA, from the first operation mode to the first capability mode after a time length indicated by the second Transition delay.

[0346] Optionally, in embodiments of the present disclosure, the switching from the first capability mode to the first operation mode comprises: switching a parameter value of the first capability mode under a first communication parameter to a parameter value of the first operation mode under the first communication parameter, the first communication parameter comprising at least one of: a bandwidth, a transmitting radio frequency link and a receiving radio frequency link.

[0347] the switching from the first operation mode to the second capability mode comprises: switching a parameter value of the first operation mode under a second communication parameter to a parameter value of the second capability mode under the second communication parameter, the second communication parameter comprising at least one of: a transmitting radio frequency link and a receiving radio frequency link.

[0348] FIG. 6 is a third flow diagram of a frame exchange method according to an embodiment of the present disclosure.

[0349] As shown in FIG. 6, the above method can be applied to the second STA, and the above method comprises:

[0350] In step 601, the second STA receives a first wireless frame sent by an AP; wherein the first wireless frame comprises at least one of: first padding information and second padding information.

[0351] A time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay; and a time length corresponding to a padding length of the second padding information is greater than or equal to a first EMLSR padding delay.

[0352] The first padding delay comprises a maximum value of padding delay required for a STA associated with the AP to switch from the first capability mode to the first operation mode; the first EMLSR padding delay comprises a maximum value of EMLSR padding delay required for the STA to switch from the first operation mode to the second capability mode; and the STA comprises the second STA.

[0353] Optionally, in the embodiments of the present disclosure, the first wireless frame is used to trigger at least two STAs working in an EMLSR link to perform frame exchange, and at least one of the at least two STAs works in the first capability mode.

[0354] The first operation mode comprises a Listening Operation mode in the EMLSR link.

[0355] For any one of the at least one communication parameter, the parameter value of the first operation mode is greater than the parameter value of the first capability mode and less than the parameter value of the second capability mode.

[0356] The optional implementation of step 601 can refer to the optional implementation of steps 201 and 202 in FIG. 2 and other associated parts in the embodiments involved in FIG. 2, which will not be repeated here.

[0357] Optionally, in the embodiments of the present disclosure, before the second STA receives the first wireless frame sent by the AP, the method further comprises:

[0358] The second STA determines a second wireless frame;

[0359] The second STA sends the second wireless frame to the AP;

[0360] The second wireless frame comprises at least one of the following parameters:

[0361] A third EMLSR padding delay required for the second STA to switch from the first operation mode to the second capability mode;

[0362] A third Transition delay required for the second STA to switch from the second capability mode to the first operation mode after the frame exchange with the AP.

[0363] Optionally, in the embodiments of the present disclosure, after the second STA receives the first wireless frame sent by the AP, the method further comprises any one of the following:

[0364] The second STA switches from the first operation mode to the second capability mode based on the second padding information.

[0365] Optionally, after the second STA switches from the first operation mode to the second capability mode, the method further includes:

[0366] The second STA sends a third wireless frame to the AP, where the third wireless frame indicates that the second STA switches to the second capability mode and waits for data transmission.

[0367] Optionally, after the second STA and the AP complete the frame exchange, the method further includes any one of the following:

[0368] The second STA switches from the second capability mode to the first operation mode after the third Transition delay indicates the duration.

[0369] Optionally, the switching from the first operation mode to the second capability mode includes switching a parameter value of the first operation mode under a second communication parameter to a parameter value of the second capability mode under the second communication parameter, and the second communication parameter includes at least one of a sending radio frequency link and a receiving radio frequency link.

[0370] Embodiments of the present disclosure also propose an apparatus for implementing any of the above methods, for example, an apparatus including units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is also proposed, including units or modules for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0371] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize any of the above methods or realize the functions of each unit or module of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship of elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the above units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0372] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), and the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), and the like.

[0373] FIG. 7 is a structural schematic diagram of an access point device according to an embodiment of the present disclosure. As shown in FIG. 7, the access point device 700 can include at least one of a determination module 701, a sending module 702, and the like.

[0374] In some embodiments, the determination module 701 is configured to determine a first wireless frame, wherein the first wireless frame includes at least one of first padding information and second padding information.

[0375] The filling length of the first padding information corresponds to a time length greater than or equal to a first padding delay, and the filling length of the second padding information is greater than a first enhanced multi-link radio-padding delay (EMLSR padding delay).

[0376] The first padding delay comprises a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode.

[0377] The sending module 702 is configured to send the first wireless frame.

[0378] Optionally, the determining module 701 is configured to perform at least one of the communication steps (for example, steps 201 and 401, but are not limited thereto) performed by the access point device 101 in any of the above methods, which will not be described herein again. The sending module 702 is configured to perform at least one of the transceiving steps (for example, steps 202, 302, 302a, 302b, 304, 304a, 304b, 402, but are not limited thereto) performed by the access point device 101 in any of the above methods, which will not be described herein again.

[0379] FIG. 8 is a structural schematic diagram of a station device according to an embodiment of the present disclosure. As shown in FIG. 8, the station device is a first station device 800, which can comprise a first receiving module 801.

[0380] In some embodiments, the first receiving module 801 is configured to receive a first wireless frame sent by an AP, wherein the first wireless frame comprises at least one of first padding information and second padding information.

[0381] A time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay; and a time length corresponding to a padding length of the second padding information is greater than or equal to a first EMLSR padding delay.

[0382] The first padding delay comprises a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode.

[0383] The STA comprises the first STA.

[0384] Optionally, the first receiving module 801 is configured to perform at least one of the receiving steps performed by the first station device 102 in any of the above methods (for example, steps 202, 302, 302a, 304, 304a, 501, but not limited thereto), which will not be repeated here.

[0385] The first station device 800 can further include a first determining module, which is configured to perform at least one of the communicating steps performed by the first station device 102 in any of the above methods (for example, steps 301, 301a, 303, 303a, 303b, 305, 305a, 305b, but not limited thereto), which will not be repeated here.

[0386] FIG. 9 is a second structural schematic diagram of a station device according to an embodiment of the present disclosure. As shown in FIG. 9, the station device is a second station device, and the second station device 900 can include a second receiving module 901.

[0387] In some embodiments, the second receiving module 901 is configured to receive a first wireless frame sent by an AP, wherein the first wireless frame includes at least one of first padding information and second padding information.

[0388] A time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay, and a time length corresponding to a padding length of the second padding information is greater than or equal to a first EMLSR padding delay.

[0389] The first padding delay includes a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode, and the first EMLSR padding delay includes a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode.

[0390] The STA includes the second STA.

[0391] Optionally, the second receiving module 901 is configured to perform at least one of the receiving steps performed by the first station device 103 in any of the above methods (for example, steps 202, 302, 302b, 304, 304b, 601, but not limited thereto), which will not be repeated here.

[0392] The second station device 900 can further include a second determining module, which is configured to perform at least one of the communication steps (for example, steps 301, 301b, 303, 303c, 305, 305c, but not limited thereto) performed by the second station device 103 in any of the above methods. Details are not repeated here.

[0393] FIG. 10 is a schematic diagram of a structure of a terminal 1000 (for example, a user equipment, etc.) according to an embodiment of the present disclosure. The terminal 1000 can be a chip, a chip system, or a processor, etc. supporting a network device to implement any of the above methods, and can also be a chip, a chip system, or a processor, etc. supporting a terminal to implement any of the above methods. The terminal 1000 can be used to implement the methods described in the above method embodiments. Details can be referred to the descriptions in the above method embodiments.

[0394] As shown in FIG. 10, the terminal 1000 includes one or more processors 1001. The processor 1001 can be a general-purpose processor or a special-purpose processor, etc. For example, the processor 1001 can be a baseband processor or a central processing unit. The baseband processor can be configured to process communication protocols and communication data, and the central processing unit can be configured to control a communication device (for example, a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process data of the program. The terminal 1000 is configured to implement any of the above methods.

[0395] In some embodiments, the terminal 1000 further includes one or more memories 1002 configured to store instructions. Alternatively, all or part of the memory 1002 can also be outside the terminal 1000.

[0396] In some embodiments, the terminal 1000 further includes one or more transceivers 1004. When the terminal 1000 includes one or more transceivers 1004, the transceiver 1004 performs at least one of the communication steps (for example, steps 202, 302, 302a, 302b, 304, 304a, 304b, 402, 501, 601, but not limited thereto) in the above methods, and the processor 1001 performs at least one of the other steps (for example, steps 201, 301, 301a, 301b, 303, 303a, 303b, 303c, 305, 305a, 305b, 305c, 401, but not limited thereto) in the above methods.

[0397] In some embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, etc. can be replaced by each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced by each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced by each other.

[0398] In some embodiments, the terminal 1000 can include one or more interface circuits 1003. Optionally, the interface circuit 1003 is connected with the memory 1002, and the interface circuit 1003 can be used to receive signals from the memory 1002 or other devices, and can be used to send signals to the memory 1002 or other devices. For example, the interface circuit 1003 can read instructions stored in the memory 1002 and send the instructions to the processor 1001.

[0399] The terminal 1000 described in the above embodiments can be a communication device such as a user equipment, but the scope of the terminal 1000 described in the present disclosure is not limited thereto, and the structure of the terminal 1000 can not be limited by FIG. 10. The communication device can be a stand-alone device or can be part of a larger device. For example, the communication device can be: (1) a stand-alone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally also include storage components for storing data, programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handset, mobile unit, vehicle-mounted device, network device, cloud device, artificial intelligence device, etc.; (6) other devices, etc.

[0400] FIG. 11 is a structural schematic diagram of a chip 1100 according to an embodiment of the present disclosure. For the case where the terminal 1000 is a chip or a chip system, the structural schematic diagram of the chip 1100 shown in FIG. 11 can be referred to, but is not limited thereto.

[0401] The chip 1100 includes one or more processors 1101, and the chip 1100 is configured to execute any of the above methods.

[0402] In some embodiments, the chip 1100 further includes one or more interface circuits 1103. Optionally, the interface circuit 1103 is connected with the memory 1102, and the interface circuit 1103 can be used to receive signals from the memory 1102 or other devices, and can be used to send signals to the memory 1102 or other devices. For example, the interface circuit 1103 can read instructions stored in the memory 1102 and send the instructions to the processor 1101.

[0403] In some embodiments, the interface circuit 1103 performs at least one of the communication steps (for example, step 202, step 302, step 302a, step 302b, step 304, step 304a, step 304b, step 402, step 501, step 601, but not limited to) of transmitting and / or receiving in the above method, and the processor 1101 performs at least one of the other steps (for example, step 201, step 301, step 301a, step 301b, step 303, step 303a, step 303b, step 303c, step 305, step 305a, step 305b, step 305c, step 401, but not limited to).

[0404] In some embodiments, the interface circuit, interface, transceiving pin, transceiver and the like can be replaced with each other.

[0405] In some embodiments, the chip 1100 further includes one or more memories 1102 for storing instructions. Optionally, all or part of the memory 1102 can be outside the chip 1100.

[0406] The disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the terminal 1000, causes the terminal 1000 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer readable storage medium, but is not limited to this, it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, it can also be a transitory storage medium.

[0407] The disclosure also proposes a program product, which, when executed by the terminal 1000, causes the terminal 1000 to perform any of the above methods. Optionally, the program product is a computer program product.

[0408] The disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any of the above methods.

Claims

A frame exchange method characterized by comprising the steps of, The method comprises: An access point device AP determines a first wireless frame; wherein the first wireless frame comprises at least one of first padding information and second padding information; The padding length of the first padding information corresponds to a time duration greater than or equal to a first padding delay; the padding length of the second padding information corresponds to a time duration greater than or equal to a first enhanced multi-link single radio-padding delay EMLSR padding delay; The first padding delay comprises a maximum value of the padding delay required for a station device STA associated with the AP to switch from a first capability mode to a first operation mode; the first EMLSR padding delay comprises a maximum value of the EMLSR padding delay required for the STA to switch from the first operation mode to a second capability mode; The AP transmits the first wireless frame. The frame exchange method according to claim 1, wherein The first wireless frame is used to trigger at least two STAs working in an EMLSR link to perform frame exchange, and at least one of the at least two STAs works in a first capability mode; The first operation mode comprises a listening operation mode in an EMLSR link; For any communication parameter in the at least one communication parameter, the parameter value of the first operation mode is greater than the parameter value of the first capability mode and less than the parameter value of the second capability mode. The frame exchange method according to claim 1 or 2, characterized in that, Before the AP determines the first wireless frame, the method further comprises: The AP receives a second wireless frame sent by a STA; the STA comprises a first STA and / or a second STA; wherein the second wireless frame comprises at least one of the following parameters: A first padding delay required for the first STA to switch from a first capability mode to a first operation mode; A second EMLSR padding delay required for the first STA to switch from the first operation capability mode to a second capability mode; A first transition delay required for the first STA to switch from a second capability mode to a first operation mode after frame exchange with the AP; A second transition delay required for the first STA to switch from the first operation mode to the first capability mode after frame exchange with the AP; A third EMLSR padding delay required for the second STA to switch from a first operation mode to a second capability mode; A third transition delay required for the second STA to switch from a second capability mode to a first operation mode after frame exchange with the AP. The frame exchange method according to claim 3, characterized in that After the AP transmits the first wireless frame, the method further comprises: The AP receives a third wireless frame sent by the first STA; the third wireless frame indicates that the first STA switches to a second capability mode and waits for data transmission; and / or The AP receives a fourth wireless frame sent by the second STA; the fourth wireless frame identifies that the second STA switches to a second capability mode and waits for data transmission. A frame exchange method characterized by comprising: The method comprises: The first STA receives a first wireless frame sent by an AP; wherein the first wireless frame comprises at least one of: first padding information and second padding information; The padding length of the first padding information corresponds to a time duration greater than or equal to a first padding delay; the padding length of the second padding information corresponds to a time duration greater than or equal to a first EMLSR padding delay; The first padding delay comprises a maximum value of a padding delay required for a STA associated with the AP to switch from a first capability mode to a first operation mode; the first EMLSR padding delay comprises a maximum value of an EMLSR padding delay required for the STA to switch from the first operation mode to a second capability mode; The STA comprises the first STA. According to the frame exchange method of claim 5, wherein The first wireless frame is used to trigger at least two STAs working in an EMLSR link to perform frame exchange, and at least one of the at least two STAs works in a first capability mode; The first operation mode comprises a Listening Operation mode under an EMLSR link; For any communication parameter in the at least one communication parameter, the parameter value of the first operation mode is greater than the parameter value of the first capability mode and less than the parameter value of the second capability mode. The frame exchange method according to claim 5 or 6, characterized in that Before the first STA receives the first wireless frame sent by the AP, the method further comprises: The first STA determines a second wireless frame; The first STA sends the second wireless frame to the AP; Wherein the second wireless frame comprises at least one of the following parameters: A first padding delay required for the first STA to switch from a first capability mode to a first operation mode; A second EMLSR padding delay required for the first STA to switch from the first operation capability mode to a second capability mode; A first Transition delay required for the first STA to switch from a second capability mode to a first operation mode after frame exchange with the AP; A second Transition delay required for the first STA to switch from a first operation mode to a first capability mode after frame exchange with the AP. The frame exchange method according to claim 7, characterized in that After the first STA receives the first wireless frame sent by the AP, the method further comprises any one of the following: In the case that the first STA works in a first capability mode before receiving the first wireless frame, the first STA switches from the first capability mode to a first operation mode based on the first padding information; In the case that the first STA works in a first capability mode before receiving the first wireless frame, the first STA switches from the first capability mode to a first operation mode based on the first padding information; and switching from the first operation mode to the second capability mode based on the second padding information; in a case that the first STA works in the first operation mode before receiving the first wireless frame, switching from the first operation mode to the second capability mode based on the second padding information. The frame exchange method according to claim 8, characterized in that after the first STA switches from the first operation mode to the second capability mode, the method further comprises: sending, by the first STA, a third wireless frame to the AP; wherein the third wireless frame indicates that the first STA switches to the second capability mode and waits for data transmission. The frame exchange method according to claim 8 or 9, characterized in that after the first STA and the AP complete the frame exchange, the method further comprises any one of the following: in a case that the first STA works in the first capability mode before receiving the first wireless frame, switching from the second capability mode to the first operation mode after a time length indicated by the first Transition delay; and switching from the first operation mode to the first capability mode after a time length indicated by the second Transition delay; in a case that the first STA works in the first operation mode before receiving the first wireless frame, switching from the first operation mode to the first capability mode after a time length indicated by the second Transition delay. According to the frame exchange method of claim 8 or 9, wherein the switching from the first capability mode to the first operation mode comprises switching a parameter value of the first capability mode under a first communication parameter to a parameter value of the first operation mode under the first communication parameter, the first communication parameter comprising at least one of a bandwidth, a transmission radio frequency link and a reception radio frequency link; the switching from the first operation mode to the second capability mode comprises switching a parameter value of the first operation mode under a second communication parameter to a parameter value of the second capability mode under the second communication parameter, the second communication parameter comprising at least one of a transmission radio frequency link and a reception radio frequency link. A frame exchange method characterized by comprising: The method comprises: receiving, by the second STA, a first wireless frame sent by the AP; wherein the first wireless frame comprises at least one of first padding information and second padding information; a time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay; a time length corresponding to a padding length of the second padding information is greater than or equal to a first EMLSR padding delay; the first padding delay comprises a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode; and the STA comprises the second STA. ​ The frame exchange method according to claim 12, characterized in that, the first wireless frame is used to trigger at least two STAs operating in an EMLSR link to perform frame exchange, and at least one of the at least two STAs operates in a first capability mode; the first operation mode comprises a listening operation mode in the EMLSR link; for any one of the at least one communication parameter, a parameter value of the first operation mode is greater than a parameter value of the first capability mode and less than a parameter value of a second capability mode. The frame exchange method according to claim 12 or 13, characterized in that, Before the second STA receives the first wireless frame sent by the AP, the method further comprises: the second STA determines a second wireless frame; the second STA sends the second wireless frame to the AP; wherein the second wireless frame comprises at least one of the following parameters: a third EMLSR padding delay required for the second STA to switch from the first operation mode to the second capability mode; a third transition delay required for the second STA to switch from the second capability mode to the first operation mode after the frame exchange with the AP. The frame exchange method according to claim 14, characterized in that After the second STA receives the first wireless frame sent by the AP, the method further comprises any one of the following: the second STA switches from the first operation mode to the second capability mode based on the second padding information. The frame exchange method according to claim 15, characterized in that After the second STA switches from the first operation mode to the second capability mode, the method further comprises: the second STA sends a third wireless frame to the AP; wherein the third wireless frame indicates that the second STA switches to the second capability mode and waits for data transmission. The frame exchange method according to claim 15 or 16, characterized in that After the frame exchange between the second STA and the AP is completed, the method further comprises any one of the following: the second STA switches from the second capability mode to the first operation mode after the third transition delay indicates the time length. The frame exchange method according to claim 15 or 16, characterized in that, the switching from the first operation mode to the second capability mode comprises: switching a parameter value of the first operation mode in a second communication parameter to a parameter value of the second capability mode in the second communication parameter, the second communication parameter comprising at least one of a transmission radio frequency link and a reception radio frequency link. A communication device, the communication device being an AP, characterized in that The AP comprises: a determination module configured to determine a first wireless frame; wherein the first wireless frame comprises at least one of first padding information and second padding information; a padding length of the first padding information corresponds to a time length greater than or equal to a first padding delay; and a padding length of the second padding information is greater than a first enhanced multi-link radio-padding delay (EMLSR padding delay). The first padding delay comprises a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode. The sending module is configured to send the first wireless frame. A communication device, the communication device being a first STA, characterized by The first STA comprises: The first receiving module is configured to receive a first wireless frame sent by an AP; wherein the first wireless frame comprises at least one of first padding information and second padding information. A time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay; and a time length corresponding to a padding length of the second padding information is greater than or equal to a first EMLSR padding delay. The first padding delay comprises a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode. The STA comprises the first STA. A communication device, the communication device being a second STA, characterized by The second STA comprises: The second receiving module is configured to receive a first wireless frame sent by an AP; wherein the first wireless frame comprises at least one of first padding information and second padding information. A time length corresponding to a padding length of the first padding information is greater than or equal to a first padding delay; and a time length corresponding to a padding length of the second padding information is greater than or equal to a first EMLSR padding delay. The first padding delay comprises a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode; and the first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode. The STA comprises the second STA. A communication device, the communication device comprising an AP, characterized in that Comprises: One or more processors; The AP is configured to perform the frame exchange method in any one of claims 1 to 4. A communication device, the communication device comprising a first STA, characterized in that Comprises: One or more processors; The first STA is configured to perform the frame exchange method in any one of claims 5 to 11. A communication device, the communication device comprising a second STA, characterized in that Comprises: One or more processors; The second STA is configured to perform the frame exchange method in any one of claims 12 to 19. A communication system characterized by Comprises an AP, a first STA and a second STA; The AP is configured to determine a first wireless frame, and transmit the first wireless frame, wherein the first wireless frame comprises at least one of first padding information and second padding information. A padding length of the first padding information corresponds to a time length greater than or equal to a first padding delay, and a padding length of the second padding information is greater than a first EMLSR padding delay. The first padding delay comprises a maximum value of padding delays required for a STA associated with the AP to switch from a first capability mode to a first operation mode. The first EMLSR padding delay comprises a maximum value of EMLSR padding delays required for the STA to switch from the first operation mode to a second capability mode. The STA comprises the first STA or the second STA. The first STA is configured to receive the first wireless frame transmitted by the AP. The second STA is configured to receive the first wireless frame transmitted by the AP. A storage medium storing instructions, characterized in that, The instructions, when executed on a communication device, cause the communication device to perform the frame exchange method of any one of claims 1-4, or the frame exchange method of any one of claims 5-11, or the frame exchange method of any one of claims 12-19. A program product, characterized in that The program product, when executed by a communication device, causes the communication device to perform the frame exchange method of any one of claims 1-4, or the frame exchange method of any one of claims 5-11, or the frame exchange method of any one of claims 12-19.

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