Communication method, device, and storage medium

Abstract

Embodiments of the present disclosure relate to the technical field of communications, and provide a communication method, a device, and a storage medium. The method is applied to a first AP, and comprises: determining a first radio frame, wherein the first radio frame is used for indicating a first channel in which the first AP expects to perform data transmission with a first STA within a first transmission opportunity (TXOP) shared by a second AP, and the first STA is associated with the first AP; and sending the first radio frame. The embodiments of the present disclosure can provide a method for indicating a channel used for data transmission with an STA.

Description

Communication method, device and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, device, and storage medium. Background Art

[0002] With the increase in frequency bands supported by wireless local area network (WLAN) devices, the rise in frequencies, and the diversification of communication services, WLAN device deployments are becoming increasingly dense. This increasing density of WLAN devices leads to more transmission interference and increases the risk of channel contention conflicts. To further improve user service quality and overall communication performance, while pursuing improvements in communication rate, latency, and reliability within a single Basic Service Set (BSS), greater emphasis is placed on coordinated transmission among multiple access points (MAPC).

[0003] Currently, in a coordinated transmission process of multiple access points (APs) based on Time Division Multiple Access (TDMA), transmission interference between APs still occurs.

[0004] Summary of the Invention

[0005] Embodiments of the present disclosure provide a communication method, device, and storage medium that can be used for channel indication between APs.

[0006] In a first aspect, an embodiment of the present disclosure provides a communication method, applied to a first AP, the method comprising:

[0007] Determining a first radio frame, where the first radio frame is used to indicate a first channel that the first AP desires to use for data transmission with a first STA within a first transmission opportunity TXOP shared by a second AP, where the first STA is associated with the first AP;

[0008] Send the first wireless frame.

[0009] In a second aspect, an embodiment of the present disclosure provides a communication method, applied to a second AP, the method including:

[0010] A first radio frame is received, where the first radio frame is used to indicate a first channel that the first AP desires to use for data transmission with a first STA within a first TXOP shared by the second AP, where the first STA is associated with the first AP.

[0011] In a third aspect, an embodiment of the present disclosure provides a STA, including:

[0012] A processing module, configured to determine a first radio frame, the first radio frame being used to indicate a first channel on which a first AP desires to perform data transmission with a first STA within a first transmission opportunity TXOP shared by a second AP, the first STA being associated with the first AP;

[0013] The transceiver module is used to send the first wireless frame.

[0014] In a fourth aspect, an embodiment of the present disclosure provides an AP, including:

[0015] The transceiver module is configured to receive a first wireless frame, where the first wireless frame indicates a first channel that a first AP desires to use for data transmission with a first STA within a first TXOP shared by a second AP, where the first STA is associated with the first AP.

[0016] In a fifth aspect, an embodiment of the present disclosure provides an AP, comprising one or more processors;

[0017] The above-mentioned AP is used to execute the communication method provided in the first aspect of the embodiment of the present disclosure.

[0018] In a sixth aspect, an embodiment of the present disclosure provides an AP, comprising one or more processors;

[0019] The above-mentioned AP is used to execute the communication method provided in the second aspect of the embodiment of the present disclosure.

[0020] In a seventh aspect, an embodiment of the present disclosure provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the communication method provided in the first aspect of the embodiment of the present disclosure.

[0021] In an eighth aspect, an embodiment of the present disclosure proposes a communication system, which includes a first AP and a second AP; wherein the first AP is configured to execute the method described in the first aspect, and the second AP is configured to execute the method described in the second aspect.

[0022] Based on the communication method, device and storage medium provided by the embodiments of the present disclosure, the first AP can indicate to the second AP the channel on which it expects to transmit data with the associated STA, and the second AP can indicate to the first AP the channel on which it actually transmits data with the associated STA.

[0023] 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 be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0026] FIG2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure;

[0027] FIG3a is a schematic structural diagram of a multi-AP coordination element shown in an embodiment of the present disclosure;

[0028] FIG3 b is a timing diagram of a communication method according to an embodiment of the present disclosure;

[0029] FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure;

[0030] FIG5 is a second flow chart of a communication method according to an embodiment of the present disclosure;

[0031] FIG6 is a third flow chart of a communication method according to an embodiment of the present disclosure;

[0032] FIG7 is a fourth flow chart of a communication method according to an embodiment of the present disclosure;

[0033] FIG8a is a schematic diagram of a structure of an AP according to an embodiment of the present disclosure;

[0034] FIG8b is a second schematic diagram of the structure of an AP shown in an embodiment of the present disclosure;

[0035] FIG9 is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure;

[0036] FIG10 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] The embodiments of the present disclosure provide a communication method, a device, and a storage medium.

[0038] In a first aspect, an embodiment of the present disclosure provides a communication method, which is applied to a first AP and includes:

[0039] Determining a first radio frame, where the first radio frame is used to indicate a first channel that the first AP desires to use for data transmission with a first STA within a first transmission opportunity TXOP shared by a second AP, where the first STA is associated with the first AP;

[0040] Send the first wireless frame.

[0041] In the above embodiment, after obtaining the first TXOP shared by the second AP, the first AP can inform the second AP through the first wireless frame of the first channel that the first AP expects to use for data transmission with the associated first STA within the first TXOP, so that after receiving the first wireless frame, the second AP allocates the second channel for data transmission with the associated first STA within the first TXOP to the first AP, thereby facilitating negotiation between the first AP and the second AP regarding the channel used by the first AP for data transmission within the first TXOP, thereby reducing data transmission interference between APs and improving communication efficiency and quality.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, when the first radio frame includes a first identification field, the first channel is a first subchannel identified by the first identification field;

[0043] When the first radio frame does not include the first identification field, the first channel is the primary channel.

[0044] In the above embodiment, when the first wireless frame includes the first identification field, the first subchannel identified by the first identification field is indicated as the first channel through which the first AP expects to transmit data with the associated first STA in the first TXOP; when the first identification field is not included, the main channel is indicated as the first channel through which the first AP expects to transmit data with the associated first STA in the first TXOP, which is beneficial to improving the indication efficiency of the first channel and saving signaling resources.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, when the operating bandwidth of the basic service set BSS where the first AP is located is greater than 160 MHz, the first identification field includes 16 bits; when the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the first identification field includes 8 bits;

[0046] Each bit of the first identification field corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit of the first identification field is the first value, the corresponding 20 MHz bandwidth sub-channel is the first sub-channel.

[0047] In the above embodiment, the bits of the first identification field can be associated with the working bandwidth of the BSS where the first AP is located, and each bit can correspond to a different 20MHz bandwidth sub-channel, which is conducive to saving signaling resources and improving the indication efficiency of the sub-channel, so that the second AP can quickly determine the first channel indicated by the first wireless frame.

[0048] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned first wireless frame includes a first identification bit, and when the identification value of the above-mentioned first identification bit is a second value, the above-mentioned first wireless frame includes the above-mentioned first identification field; when the identification value of the above-mentioned first identification bit is a third value, the above-mentioned first wireless frame does not include the above-mentioned first identification field.

[0049] In the above embodiment, the first wireless frame can indicate through the first identification bit whether the first channel that the first AP expects to use for data transmission with the associated first STA within the first TXOP is the main channel or the first sub-channel identified by the first identification field, which is conducive to the second AP quickly determining the first channel indicated by the first AP.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the first radio frame includes a first multi-AP coordination M-AP Coordination element, the first M-AP Coordination element includes a first coordinated time division multiple access parameter setting C-TDMA Parameter Set field, and the first C-TDMA Parameter Set field includes a first coordinated time division multiple access parameter information C-TDMA Parameter Info field and a first coordinated time division multiple access parameter control C-TDMA Parameter Control field;

[0051] The first C-TDMA Parameter Control field includes the first identification bit. When the first radio frame includes the first identification field, the first C-TDMA Parameter Info field includes the first identification field.

[0052] In the above embodiment, the first radio frame can implement the indication function of the first identification bit and the first identification field through the information field in the M-AP Coordination element, which is conducive to saving signaling resources.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes:

[0054] A second radio frame is received, where the second radio frame is used to allocate a second channel to the first AP for performing data transmission with the first STA within the first TXOP.

[0055] In some embodiments, in the above embodiments, the second AP determines through the first wireless frame the first channel that the first AP expects to use for data transmission with the associated first STA within the first TXOP, and may allocate to the first AP through the second wireless frame the second channel for data transmission with the associated first STA within the first TXOP, thereby facilitating negotiation between the first AP and the second AP regarding the channel used by the first AP for data transmission within the first TXOP, thereby reducing data transmission interference between APs and improving communication efficiency and quality.

[0056] In combination with some embodiments of the first aspect, in some embodiments, when the second radio frame includes a second identification field, the second channel is a second subchannel identified by the second identification field;

[0057] When the second radio frame does not include the second identification field, the second channel is the primary channel.

[0058] In the above embodiment, when the second wireless frame includes the second identification field, the second subchannel identified by the second identification field is indicated as the second channel for the first AP to perform data transmission with the associated first STA in the first TXOP; when the second identification field is not included, the main channel is indicated as the second channel for the first AP to perform data transmission with the associated first STA in the first TXOP, which is beneficial to improving the indication efficiency of the second channel and saving signaling resources.

[0059] In conjunction with some embodiments of the first aspect, in some embodiments, when the operating bandwidth of the BSS where the first AP is located is greater than 160 MHz, the second identification field includes 16 bits; when the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the second identification field includes 8 bits;

[0060] Each bit of the second identification field corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit of the second identification field is the first value, the corresponding 20 MHz bandwidth sub-channel is identified as the second sub-channel.

[0061] In the above embodiment, the bits of the second identification field can be associated with the working bandwidth of the BSS where the first AP is located, and each bit can correspond to a different 20MHz bandwidth sub-channel, which is conducive to saving signaling resources and improving the indication efficiency of the sub-channel, so that the first AP can quickly determine the second channel indicated by the second wireless frame.

[0062] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned second wireless frame includes a second identification bit, and when the identification value of the above-mentioned second identification bit is the second value, the above-mentioned second wireless frame includes the above-mentioned second identification bit; when the identification value of the above-mentioned second identification bit is the third value, the above-mentioned second wireless frame does not include the above-mentioned second identification bit.

[0063] In the above embodiment, the second wireless frame can indicate through the second identification bit whether the second channel that the first AP expects to use for data transmission with the associated first STA within the first TXOP is the main channel or the second sub-channel identified by the second identification field, which is beneficial for the first AP to quickly determine the second channel indicated by the second AP.

[0064] In combination with some embodiments of the first aspect, in some embodiments, the second radio frame includes a second M-AP Coordination element, the second M-AP Coordination element includes a second C-TDMA Parameter Set field, the second C-TDMA Parameter Set field includes a second C-TDMA Parameter Info field and a second C-TDMA Parameter Control field;

[0065] The second C-TDMA Parameter Control field includes the second identification bit. When the second radio frame includes the second identification field, the second C-TDMA Parameter Info field includes the second identification field.

[0066] In the above embodiment, the second radio frame can implement the indication function of the second identification bit and the second identification field through the information field in the M-AP Coordination element, which is conducive to saving signaling resources.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes:

[0068] Send a third radio frame, where the third radio frame is used for at least one of the following:

[0069] Responding to the second radio frame;

[0070] The second channel is shared with the first STA.

[0071] In the above embodiment, the first AP can use the third wireless frame to respond to the second wireless frame and share the second channel, which is beneficial to saving signaling resources and communication time.

[0072] In combination with some embodiments of the first aspect, in some embodiments, when the third radio frame includes a third identification field, the second channel is a third subchannel identified by the third identification field;

[0073] When the third radio frame does not include the third identification field, the second channel is the primary channel.

[0074] In the above embodiment, when the third wireless frame includes the third identification field, the third subchannel identified by the third identification field is indicated as the second channel for the first AP to perform data transmission with the associated first STA in the first TXOP; when the second identification field is not included, the main channel is indicated as the second channel for the first AP to perform data transmission with the associated first STA in the first TXOP, which is beneficial to improving the indication efficiency of the second channel and saving signaling resources.

[0075] In conjunction with some embodiments of the first aspect, in some embodiments, when the operating bandwidth of the BSS where the first AP is located is greater than 160 MHz, the third identification field includes 16 bits; when the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the third identification field includes 8 bits;

[0076] Among them, each bit of the above-mentioned third identification field corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit of the above-mentioned third identification field is the first value, the corresponding 20 MHz bandwidth sub-channel is the above-mentioned third sub-channel.

[0077] In the above embodiment, the bits of the third identification field can be associated with the working bandwidth of the BSS where the first AP is located, and each bit can correspond to a different 20MHz bandwidth sub-channel, which is conducive to saving signaling resources and improving the indication efficiency of the sub-channel, so that the first STA can quickly determine the second channel indicated by the third wireless frame.

[0078] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes:

[0079] After the first TXOP starts, a first trigger frame is sent, where the first trigger frame is used to allocate a first RU corresponding to the second channel to the first STA;

[0080] The total bandwidth corresponding to the first RU is less than or equal to the channel bandwidth of the second channel.

[0081] In the above embodiment, after the first TXOP starts, the first AP can allocate the first RU of the second channel to the first STA, so that the first AP and the first STA can realize data transmission through the second channel within the first TXOP according to the first RU. When data transmission is performed on the second channel indicated by the second AP, interference with data transmission performed by the second AP can be effectively avoided, thereby improving communication efficiency and quality.

[0082] In a second aspect, an embodiment of the present disclosure provides a communication method, which is applied to a second AP and includes:

[0083] A first radio frame is received, where the first radio frame is used to indicate a first channel that the first AP desires to use for data transmission with a first STA within a first TXOP shared by the second AP, where the first STA is associated with the first AP.

[0084] In the above embodiment, the second AP can determine, through the first wireless frame, the first channel that the first AP expects to use for data transmission with the associated first STA within the first TXOP, which is conducive to negotiation between the first AP and the second AP regarding the channel used by the first AP for data transmission within the first TXOP, so as to reduce data transmission interference between APs and improve communication efficiency and quality.

[0085] In conjunction with some embodiments of the second aspect, in some embodiments, when the first radio frame includes a first identification field, the first channel is a first subchannel identified by the first identification field;

[0086] When the first radio frame does not include the first identification field, the first channel is the primary channel.

[0087] In the above embodiment, when the first wireless frame includes the first identification field, the first subchannel identified by the first identification field is indicated as the first channel through which the first AP expects to transmit data with the associated first STA in the first TXOP; when the first identification field is not included, the main channel is indicated as the first channel through which the first AP expects to transmit data with the associated first STA in the first TXOP, which is beneficial to improving the indication efficiency of the first channel and saving signaling resources.

[0088] In conjunction with some embodiments of the second aspect, in some embodiments, when the operating bandwidth of the basic service set BSS where the first AP is located is greater than 160 MHz, the first identification field includes 16 bits; when the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the first identification field includes 8 bits;

[0089] Each bit of the first identification field corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit of the first identification field is the first value, the corresponding 20 MHz bandwidth sub-channel is the first sub-channel.

[0090] In the above embodiment, the bits of the first identification field can be associated with the working bandwidth of the BSS where the first AP is located, and each bit can correspond to a different 20MHz bandwidth sub-channel, which is conducive to saving signaling resources and improving the indication efficiency of the sub-channel, so that the second AP can quickly determine the first channel indicated by the first wireless frame.

[0091] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned first wireless frame includes a first identification bit, and when the identification value of the above-mentioned first identification bit is the second value, the above-mentioned first wireless frame includes the above-mentioned first identification field; when the identification value of the above-mentioned first identification bit is the third value, the above-mentioned first wireless frame does not include the above-mentioned first identification field.

[0092] In the above embodiment, the first wireless frame can indicate through the first identification bit whether the first channel that the first AP expects to use for data transmission with the associated first STA within the first TXOP is the main channel or the first sub-channel identified by the first identification field, so that the second AP can quickly determine the first channel indicated by the first AP.

[0093] In combination with some embodiments of the second aspect, in some embodiments, the first radio frame includes a first M-AP Coordination element, the first M-AP Coordination element includes a first C-TDMA Parameter Set field, the first C-TDMA Parameter Set field includes a first C-TDMA Parameter Info field and a first C-TDMA Parameter Control field;

[0094] The first C-TDMA Parameter Control field includes the first identification bit. When the first radio frame includes the first identification field, the first C-TDMA Parameter Info field includes the first identification field.

[0095] In the above embodiment, the first radio frame can implement the indication function of the first identification bit and the first identification field through the information field in the M-AP Coordination element, which is conducive to saving signaling resources.

[0096] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes:

[0097] A second radio frame is sent, where the second radio frame is used to allocate a second channel to the first AP for performing data transmission with the first STA within the first TXOP.

[0098] In some embodiments, in the above embodiments, after the second AP determines through the first wireless frame the first channel that the first AP expects to use for data transmission with the associated first STA within the first TXOP, the second wireless frame may be used to allocate to the first AP a second channel for data transmission with the associated first STA within the first TXOP, thereby facilitating negotiation between the first AP and the second AP regarding the channel used by the first AP for data transmission within the first TXOP, thereby reducing data transmission interference between APs and improving communication efficiency and quality.

[0099] In conjunction with some embodiments of the second aspect, in some embodiments, when the second radio frame includes a second identification field, the second channel is a second subchannel identified by the second identification field;

[0100] When the second radio frame does not include the second identification field, the second channel is the primary channel.

[0101] In the above embodiment, when the second wireless frame includes the second identification field, the second subchannel identified by the second identification field is indicated as the second channel for the first AP to perform data transmission with the associated first STA in the first TXOP; when the second identification field is not included, the main channel is indicated as the second channel for the first AP to perform data transmission with the associated first STA in the first TXOP, which is beneficial to improving the indication efficiency of the second channel and saving signaling resources.

[0102] In conjunction with some embodiments of the second aspect, in some embodiments, when the operating bandwidth of the BSS where the first AP is located is greater than 160 MHz, the second identification field includes 16 bits; when the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the second identification field includes 8 bits;

[0103] Each bit of the second identification field corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit of the second identification field is the first value, the corresponding 20 MHz bandwidth sub-channel is identified as the second sub-channel.

[0104] In the above embodiment, the bits of the second identification field can be associated with the working bandwidth of the BSS where the first AP is located, and each bit can correspond to a different 20MHz bandwidth sub-channel, which is conducive to saving signaling resources and improving the indication efficiency of the sub-channel, so that the first AP can quickly determine the second channel indicated by the second wireless frame.

[0105] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned second wireless frame includes a second identification bit. When the identification value of the above-mentioned second identification bit is the second value, the above-mentioned second wireless frame includes the above-mentioned second identification bit; when the identification value of the above-mentioned second identification bit is the third value, the above-mentioned second wireless frame does not include the above-mentioned second identification bit.

[0106] In the above embodiment, the second wireless frame can indicate through the second identification bit whether the second channel that the first AP expects to use for data transmission with the associated first STA within the first TXOP is the main channel or the second sub-channel identified by the second identification field, which is beneficial for the first AP to quickly determine the second channel indicated by the second AP.

[0107] In conjunction with some embodiments of the second aspect, in some embodiments, the second radio frame includes a second M-AP Coordination element, the second M-AP Coordination element includes a second C-TDMA Parameter Set field, the second C-TDMA Parameter Set field includes a second C-TDMA Parameter Info field and a second C-TDMA Parameter Control field;

[0108] The second C-TDMA Parameter Control field includes the second identification bit. When the second radio frame includes the second identification field, the second C-TDMA Parameter Info field includes the second identification field.

[0109] In the above embodiment, the second radio frame can implement the indication function of the second identification bit and the second identification field through the information field in the M-AP Coordination element, which is conducive to saving signaling resources.

[0110] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes:

[0111] Receive a third radio frame, where the third radio frame is used for at least one of the following:

[0112] Responding to the second radio frame;

[0113] The second channel is shared with the first STA.

[0114] In the above embodiment, the first AP can use the third wireless frame to respond to the second wireless frame and share the second channel, which is beneficial to saving signaling resources and communication time.

[0115] In conjunction with some embodiments of the second aspect, in some embodiments, when the third radio frame includes a third identification field, the second channel is a third subchannel identified by the third identification field;

[0116] When the third radio frame does not include the third identification field, the second channel is the primary channel.

[0117] In the above embodiment, when the third wireless frame includes the third identification field, the third subchannel identified by the third identification field is indicated as the second channel for the first AP to perform data transmission with the associated first STA in the first TXOP; when the second identification field is not included, the main channel is indicated as the second channel for the first AP to perform data transmission with the associated first STA in the first TXOP, which is beneficial to improving the indication efficiency of the second channel and saving signaling resources.

[0118] In conjunction with some embodiments of the second aspect, in some embodiments, when the operating bandwidth of the BSS where the first AP is located is greater than 160 MHz, the third identification field includes 16 bits; when the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the third identification field includes 8 bits;

[0119] Among them, each bit of the above-mentioned third identification field corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit of the above-mentioned third identification field is the first value, the corresponding 20 MHz bandwidth sub-channel is the above-mentioned third sub-channel.

[0120] In the above embodiment, the bits of the third identification field can be associated with the working bandwidth of the BSS where the first AP is located, and each bit can correspond to a different 20MHz bandwidth sub-channel, which is conducive to saving signaling resources and improving the indication efficiency of the sub-channel, so that the first STA can quickly determine the second channel indicated by the third wireless frame.

[0121] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes:

[0122] Sending a second trigger frame after the first TXOP starts, where the second trigger frame is used to allocate a second RU corresponding to the third channel to the second STA;

[0123] Among them, the above-mentioned second STA is associated with the above-mentioned second AP, the above-mentioned third channel is the channel reserved after the above-mentioned second AP allocates the above-mentioned second channel to the above-mentioned first AP, and the total bandwidth corresponding to the above-mentioned second RU is less than or equal to the channel bandwidth of the above-mentioned third channel.

[0124] In the above embodiment, after the first TXOP begins, the second AP can allocate its reserved second RU of the third channel to the associated second STA. This allows the second AP and the second STA to perform data transmission over the third channel within the first TXOP based on the second RU. When the first AP performs data transmission over the second channel with the first STA within the first TXOP, the data transmission between the first AP and the first STA does not interfere with the data transmission between the second AP and the second STA, thereby improving communication efficiency and quality.

[0125] In a third aspect, an embodiment of the present disclosure provides an AP, including:

[0126] A processing module, configured to determine a first radio frame, the first radio frame being used to indicate a first channel on which a first AP desires to perform data transmission with a first STA within a first transmission opportunity TXOP shared by a second AP, the first STA being associated with the first AP;

[0127] The transceiver module is used to send the first wireless frame.

[0128] In a fourth aspect, an embodiment of the present disclosure provides an AP, including:

[0129] The transceiver module is configured to receive a first wireless frame, where the first wireless frame indicates a first channel that a first AP desires to use for data transmission with a first STA within a first TXOP shared by a second AP, where the first STA is associated with the first AP.

[0130] In a fifth aspect, an embodiment of the present disclosure provides an AP, comprising one or more processors;

[0131] The AP is used to execute the communication method provided in the first aspect and the optional implementation manner of the first aspect, or to execute the communication method provided in the second aspect and the optional implementation manner of the second aspect.

[0132] In a sixth aspect, an embodiment of the present disclosure provides a communication device, including one or more processors;

[0133] The above-mentioned communication device can act as a first AP to execute the communication method provided in the first aspect and the optional implementation manner of the first aspect, or act as a second AP to execute the communication method provided in the second aspect and the optional implementation manner of the second aspect.

[0134] In the seventh aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect, the second aspect, the optional implementation of the first aspect, and the optional implementation of the second aspect.

[0135] In an eighth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the first aspect, the second aspect, the optional implementation of the first aspect, and the optional implementation of the second aspect.

[0136] In a ninth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect, the second aspect, the optional implementation of the first aspect, and the optional implementation of the second aspect.

[0137] In a tenth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the first aspect, the second aspect, the optional embodiment of the first aspect, and the optional embodiment of the second aspect.

[0138] In the eleventh aspect, an embodiment of the present disclosure proposes a communication system, which includes a first AP and a second AP; wherein the first AP is configured to execute the method described in the first aspect and the optional implementation method of the first aspect, and the second AP is configured to execute the method described in the second aspect and the optional implementation method of the second aspect.

[0139] It is understandable that the first AP, second AP, communication system, communication device, storage medium, program product, computer program, chip, or chip system described above are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0140] The present disclosure provides a communication method, device, and storage medium. In some embodiments, the terms "communication method" and "information processing method" are interchangeable, the terms "communication device" and "information processing device" are interchangeable, and the terms "information processing system" and "communication system" are interchangeable.

[0141] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0142] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0143] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0144] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "above", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0145] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0146] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0147] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, and C.

[0148] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0149] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0150] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0151] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0152] In some embodiments, terms such as "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 less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0153] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0154] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0155] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0156] With the increase in frequency bands supported by wireless local area network (WLAN) devices, the rise in frequencies, and the diversification of communication services, WLAN device deployments are becoming increasingly dense. This increasing density of WLAN devices leads to more transmission interference and increases the risk of channel contention conflicts. To further improve user service quality and overall communication performance, while pursuing improvements in communication rate, latency, and reliability within a single Basic Service Set (BSS), greater emphasis is placed on coordinated transmission among multiple access points (MAPC).

[0157] MAPC transmission refers to the coordination strategies such as time-frequency, frequency domain and other resource sharing and spatial multiplexing between multiple adjacent APs to achieve the goals of eliminating interference between BSSs and improving user service quality. Among them, the multi-AP coordination strategy based on TDMA means that the AP holding a TXOP can share part of its reserved transmission opportunity (TXOP) time with neighboring APs, and the neighboring APs can communicate with the STAs associated with their BSS during the allocated transmission time. Among them, the AP that holds a TXOP and shares part of the TXOP with other neighboring APs is called a sharing AP (Sharing AP) or a coordinating AP (Coordination AP), and the neighboring AP that obtains the TXOP shared by the Sharing AP or Coordination AP is called a shared AP (Shared AP) or a coordinated AP (Coordinated AP).

[0158] Currently, the process for coordinated transmission among multiple APs based on TDMA is not yet clearly defined. For example, under the traditional TXOP Sharing mechanism, during a TXOP shared by a Sharing AP / Coordination AP with a Shared AP / Coordinated AP, the Sharing AP / Coordination AP suspends or postpones all data transmission within its own BSS. This coordination method sacrifices the communication performance of the BSS in which the Sharing AP / Coordination AP resides, resulting in communication interruptions, increased transmission latency, or reduced throughput within the BSS. Therefore, it is necessary to standardize how to achieve fair and efficient coordinated transmission among multiple APs and eliminate inter-AP transmission interference while ensuring the communication performance of each BSS.

[0159] To address the above issues, the following will further describe the technical solutions in the embodiments of the present disclosure in a clear and complete manner with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure and do not constitute all the embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present disclosure without creative effort shall fall within the scope of protection of the present disclosure.

[0160] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0161] As shown in FIG. 1 , a communication system 100 includes a first AP 101 and a second AP 102 .

[0162] The first AP 101 may be an independent AP or an attached AP of an AP MLD, and the second AP 102 may be an independent AP or an attached AP of an AP MLD, which is not limited here.

[0163] In some embodiments, the first AP 101 and the second AP 102 may be terminal devices or network devices with Wi-Fi chips.

[0164] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0165] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or a portion of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The link relationships between the entities are illustrative only. The entities may be linked or unlinked, and the links may be of any type, including direct or indirect, wired or wireless.

[0166] The various embodiments of the present disclosure may be applied to wireless local area networks (WLANs), such as IEEE 802.11 system standards, such as 802.11a / b / g, 802.11n, 802.11ac, 802.11ax, 802.11bf, 802.11be, or their successors, such as 802.11bn. Alternatively, the various embodiments of the present disclosure may also be applied to wireless local area network systems, such as Internet of Things (IoT) networks or Vehicle to X (V2X) networks. Of course, the embodiments of the present disclosure can also be applied to other possible communication systems, such as long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, universal mobile telecommunication system (UMTS), world-wide interoperability for microwave access (WiMAX) communication system, and fifth generation (5G) communication system.

[0167] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. The communication method shown in FIG2 includes:

[0168] S21 , a first AP sends a first radio frame, where the first radio frame is used to indicate a first channel that the first AP desires to use for data transmission with a first STA within a first TXOP shared by a second AP.

[0169] In some embodiments, the first STA is at least one STA located in a BSS where the first AP is located and associated with the first AP. The first AP may be a Shared AP.

[0170] In some embodiments, the first radio frame may be used to request coordinated time division multiple access (C-TDMA) multi-AP coordination. That is, the first radio frame may be used to request C-TDMA multi-AP coordination while indicating that the first AP desires to use a first channel for data transmission with the first STA within a first TXOP shared by a second AP.

[0171] In some embodiments, the first radio frame includes a first identification field, and the first identification field is used to identify the first subchannel.

[0172] Optionally, the first identification field can be used to identify the first channel index value. Different channel index values ​​correspond to different 20MHz bandwidth subchannels (Subchannel). The first wireless frame can indirectly identify the 20MHz bandwidth subchannel corresponding to the first channel index value as the first subchannel through the first channel index value.

[0173] The first channel index value may include a channel index value corresponding to at least one 20 MHz bandwidth sub-channel.

[0174] Optionally, the first identification field includes multiple bits, each bit corresponds to a different 20MHz sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20MHz bandwidth sub-channel as the first sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20MHz bandwidth sub-channel as not the first sub-channel.

[0175] That is, the first identification field indicates that the 20 MHz bandwidth sub-channel corresponding to any bit is the first sub-channel by setting the identification value of any bit to the first value.

[0176] The number of bits in the first identification field is associated with the working bandwidth of the BSS where the first AP is located.

[0177] The first value and the fourth value are different values. For example, the first value may be 1 and the fourth value may be 0, which is not limited here.

[0178] As an example, when the working bandwidth of the BSS where the first AP is located is greater than 160MHz, the first identification field includes 16 bits, each bit corresponds to a different 20MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20MHz bandwidth sub-channel is identified as the first sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20MHz bandwidth sub-channel is not identified as the first sub-channel.

[0179] When the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the first identification field includes 8 bits, each bit corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20 MHz bandwidth sub-channel is identified as the first sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20 MHz bandwidth sub-channel is not identified as the first sub-channel.

[0180] For example, if the operating bandwidth of the BSS where the first AP is located is 320 MHz, the first identification field contains 16 bits, the least significant bit corresponds to the 20 MHz bandwidth subchannel with the lowest frequency, and the most significant bit corresponds to the 20 MHz bandwidth subchannel with the highest frequency. If the operating bandwidth of the BSS where the first AP is located is 80 MHz, the first identification field contains 8 bits, the least significant bit corresponds to the 80 MHz bandwidth, the least significant bit corresponds to the 20 MHz bandwidth subchannel with the lowest frequency, the fourth bit corresponds to the 20 MHz bandwidth subchannel with the highest frequency, and the most significant bit is reserved.

[0181] Optionally, the first identification field may be a coordinated time division multiple access channel bitmap (C-TDMA Channel Bitmap) field.

[0182] In some embodiments, when the first radio frame includes the first identification field, the first subchannel identified by the first identification field is the first channel indicated by the first radio frame that the first AP expects to use for data transmission with the first STA within the first TXOP.

[0183] When the first radio frame does not include the first identification field, the first channel that the first AP expects to use for data transmission with the first STA in the first TXOP is a primary channel.

[0184] In other words, when the first radio frame includes the first identification field, the first radio frame is used to indicate that the first subchannel identified by the first identification field is the first channel that the first AP expects to use for data transmission with the first STA within the first TXOP. When the first radio frame does not include the first identification field, the first radio frame is used to indicate that the primary channel is the first channel that the first AP expects to use for data transmission with the first STA within the first TXOP.

[0185] In some embodiments, the first radio frame further includes a first identification bit, and when the identification value of the first identification bit is the second value, the first radio frame includes a first identification field. When the identification value of the first identification bit is the third value, the first radio frame does not include the first identification field.

[0186] In other words, when the identification value of the first identification bit is the second value, the first radio frame also includes a first identification field, and the first radio frame indicates, through the first identification bit, that the first subchannel identified by the first identification field is the first channel that the first AP expects to use for data transmission with the first STA within the first TXOP. When the identification value of the first identification bit is the third value, the first radio frame does not include the first identification field, and the first radio frame indicates, through the first identification bit, that the first channel that the first AP expects to use for data transmission with the first STA within the first TXOP is the primary channel.

[0187] The second value and the third value are different values. For example, the second value may be 1 and the third value may be 0, which is not limited here.

[0188] In some embodiments, the first radio frame includes a first multi-AP coordination (M-AP Coordination) element.

[0189] Among them, the first M-AP Coordination element includes a first coordinated time division multiple access parameter setting (C-TDMA Parameter Set) field, and the first C-TDMA Parameter Set field includes a first coordinated time division multiple access parameter information (C-TDMA Parameter Info) field and a first coordinated time division multiple access parameter control (C-TDMA Parameter Control) field.

[0190] The first C-TDMA Parameter Control field includes the first identification bit, and when the first radio frame includes the first identification field, the first C-TDMA Parameter Info field includes the first identification field. That is, when the identification value of the first identification bit is the second value, the first C-TDMA Parameter Info field includes the first identification field, and when the identification value of the first identification bit is the third value, the first C-TDMA Parameter Info field does not include the first identification field.

[0191] As an example, the first radio frame includes an M-AP Coordination element, as shown in FIG3 a . The M-AP Coordination element includes a C-TDMA Parameter Set field, and the C-TDMA Parameter Set field includes a C-TDMA Parameter Control field and a C-TDMA Parameter Info field.

[0192] Among them, the C-TDMA Parameter Set field includes a first identification bit, that is, a coordinated time division multiple access channel bit map present (C-TDMA Channel Bitmap Present) identification bit. When the identification value of the C-TDMA Channel Bitmap Present identification bit is the second value, the C-TDMA Parameter Info field includes a first identification field, that is, a C-TDMA Channel Bitmap field. The C-TDMA Channel Bitmap field is used to indicate a first sub-channel. The first sub-channel is the first channel that the first AP expects to transmit data with the first STA within the first TXOP.

[0193] S22 , the second AP sends a second radio frame, where the second radio frame is used to allocate a second channel for data transmission with the first STA in the first TXOP to the first AP.

[0194] In some embodiments, the second AP may be a Sharing AP.

[0195] In some embodiments, the second radio frame can be used to respond to the C-TDMA multi-AP coordination request. That is, the second radio frame can be used to respond to the C-TDMA multi-AP coordination request while allocating to the first AP a second channel for data transmission between the first AP and the first STA within the first TXOP shared by the second AP.

[0196] In some embodiments, the second radio frame includes a second identification field, and the second identification field is used to identify the second sub-channel.

[0197] Optionally, the second identification field can be used to identify the second channel index value. Different channel index values ​​correspond to different 20MHz bandwidth subchannels (Subchannel). The second wireless frame can indirectly identify the 20MHz bandwidth subchannel corresponding to the second channel index value as the second subchannel through the second channel index value.

[0198] The second channel index value may include a channel index value corresponding to at least one 20 MHz bandwidth sub-channel.

[0199] Optionally, the second identification field includes multiple bits, each bit corresponds to a different 20MHz sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20MHz bandwidth sub-channel as the second sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20MHz bandwidth sub-channel as not the second sub-channel.

[0200] That is, the second identification field indicates that the 20 MHz bandwidth sub-channel corresponding to any bit is the second sub-channel by setting the identification value of any bit to the first value.

[0201] The number of bits in the second identification field is associated with the working bandwidth of the BSS where the first AP is located.

[0202] The working bandwidth of the BSS where the first AP is located is the same as the working bandwidth of the BSS where the second AP is located. The first AP and the second AP are two APs that form overlapping basic service sets in the BSSs where they are located.

[0203] The first value and the fourth value are different values. For example, the first value may be 1 and the fourth value may be 0, which is not limited here.

[0204] As an example, when the working bandwidth of the BSS where the first AP is located is greater than 160MHz, the second identification field includes 16 bits, each bit corresponds to a different 20MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20MHz bandwidth sub-channel is identified as the second sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20MHz bandwidth sub-channel is not identified as the second sub-channel.

[0205] When the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the second identification field includes 8 bits, each bit corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20 MHz bandwidth sub-channel as the second sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20 MHz bandwidth sub-channel as not the second sub-channel.

[0206] For example, if the working bandwidth of the BSS where the first AP is located and the working bandwidth of the BSS where the second AP is located are both 80MHz, and the main channel bandwidth is both 20MHz. The second AP can reserve the 40MHz bandwidth sub-channel with the lowest frequency, and communicate with the STA associated with the BSS through the 40MHz bandwidth sub-channel with the lowest frequency. The second AP can allocate the 40MHz bandwidth sub-channel with the highest frequency to the first AP through the second identification field, so that the first AP can communicate with the first STA associated with the BSS through the 40MHz bandwidth sub-channel with the highest frequency in the first TXOP. At this time, the second identification field may include 8 bits. When the first value is 1, the first identification field may be represented as 00001100 (B7~B0).

[0207] Optionally, the second identification field may be a coordinated time division multiple access channel bitmap (C-TDMA Channel Bitmap) field.

[0208] In some embodiments, when the second radio frame includes the second identification field, the second subchannel identified by the second identification field is a second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA within the first TXOP.

[0209] When the second radio frame does not include the second identification field, the second channel allocated by the second AP to the first AP and used by the first AP to perform data transmission with the first STA within the first TXOP is a primary channel (Primary Channel).

[0210] In other words, when the second radio frame includes the second identification field, the second radio frame is used to indicate that the second subchannel identified by the second identification field is the second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA within the first TXOP. When the second radio frame does not include the second identification field, the second radio frame is used to indicate that the primary channel is the second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA within the first TXOP.

[0211] In some embodiments, the second radio frame further includes a second identification bit, and when the identification value of the second identification bit is the second value, the second radio frame includes a second identification field. When the identification value of the second identification bit is a third value, the second radio frame does not include the second identification field.

[0212] In other words, when the identification value of the second identification bit is the second value, the second radio frame also includes a second identification field, and the second radio frame indicates, through the second identification bit, that the second subchannel identified by the second identification field is the second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA within the first TXOP. When the identification value of the second identification bit is the third value, the second radio frame does not include the second identification field, and the second radio frame indicates, through the second identification bit, that the second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA within the first TXOP is the primary channel.

[0213] In some embodiments, the second radio frame includes a second M-AP Coordination element.

[0214] The second value and the third value are different values. For example, the second value may be 1 and the third value may be 0, which is not limited here.

[0215] The second M-AP Coordination element includes a second C-TDMA Parameter Set field, and the second C-TDMA Parameter Set field includes a second C-TDMA Parameter Info field and a second C-TDMA Parameter Control field.

[0216] The second C-TDMA Parameter Control field includes the second identification bit, and when the second radio frame includes the second identification field, the second C-TDMA Parameter Info field includes the second identification field. That is, when the identification value of the second identification bit is the second value, the second C-TDMA Parameter Info field includes the second identification field, and when the identification value of the second identification bit is the third value, the second C-TDMA Parameter Info field does not include the second identification field.

[0217] S23: The first AP sends a third radio frame, where the third radio frame is used to respond to the second radio frame and / or to share the second channel with the first STA.

[0218] In some embodiments, after the first AP receives the second radio frame and determines the second channel allocated to it by the second AP for communicating with the first STA, the first AP may send a third radio frame.

[0219] The third radio frame is used to respond to the second radio frame and / or to share the second channel allocated by the second AP to the first AP with the first STA.

[0220] As an example, after receiving the second wireless frame, the first AP can send a third wireless frame to the first STA and the second AP simultaneously by broadcasting, so as to respond to the second wireless frame while sharing with the first STA the second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA within the first TXOP.

[0221] When the first AP sends the third wireless frame in a broadcast manner, a receiving address (RA) of the third wireless frame is a broadcast address.

[0222] Optionally, after receiving the second radio frame, the first AP may send a third radio frame to the second AP and the first STA respectively, so as to share the second channel with the first STA through a separate third radio frame, and respond to the second radio frame through another third radio frame.

[0223] In some embodiments, when the third radio frame is used to share the second channel with the first STA, the third radio frame may include a third identification field, where the third identification field is used to identify the third sub-channel.

[0224] Optionally, the third identification field can be used to identify the third channel index value. Different channel index values ​​correspond to different 20MHz bandwidth subchannels (Subchannel). The third wireless frame can indirectly identify the 20MHz bandwidth subchannel corresponding to the third channel index value as the second subchannel through the third channel index value.

[0225] The third channel index value may include a channel index value corresponding to at least one 20 MHz bandwidth sub-channel.

[0226] Optionally, the third identification field includes multiple bits, each bit corresponds to a different 20MHz sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20MHz bandwidth sub-channel as the third sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20MHz bandwidth sub-channel as not the third sub-channel.

[0227] That is, the third identification field indicates that the 20 MHz bandwidth sub-channel corresponding to any bit is the third sub-channel by setting the identification value of any bit to the first value.

[0228] The number of bits in the third identification field is associated with the working bandwidth of the BSS where the first AP is located.

[0229] The first value and the fourth value are different values. For example, the first value may be 1 and the fourth value may be 0, which is not limited here.

[0230] As an example, when the working bandwidth of the BSS where the first AP is located is greater than 160MHz, the third identification field includes 16 bits, each bit corresponds to a different 20MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20MHz bandwidth sub-channel is identified as the third sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20MHz bandwidth sub-channel is not identified as the third sub-channel.

[0231] When the working bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the third identification field includes 8 bits, each bit corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20 MHz bandwidth sub-channel as the third sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20 MHz bandwidth sub-channel as not the third sub-channel.

[0232] For example, if the working bandwidth of the BSS where the first AP is located and the working bandwidth of the BSS where the second AP is located are both 80MHz, and the main channel bandwidth is 20MHz. The second AP can reserve the 40MHz bandwidth sub-channel with the lowest frequency, and communicate with the STA associated with the BSS through the 40MHz bandwidth sub-channel with the lowest frequency. The second AP can allocate the 40MHz bandwidth sub-channel with the highest frequency to the first AP through the second identification field, so that the first AP can communicate with the first STA associated with the BSS through the 40MHz bandwidth sub-channel with the highest frequency in the first TXOP. The first AP can share the 40MHz bandwidth sub-channel with the first STA through the third identification field. At this time, the third identification field can include 8 bits. When the first value is 1, the third identification field can be expressed as 00001100 (B7~B0).

[0233] Optionally, the third identification field may be a coordinated time division multiple access channel bitmap (C-TDMA Channel Bitmap) field.

[0234] In some embodiments, when the third radio frame includes a third identification field, the third subchannel identified by the third identification field is a second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA in the first TXOP.

[0235] When the third radio frame does not include the third identification field, the second channel shared by the first AP with the first STA and used for data transmission with the first STA within the first TXOP is a primary channel (Primary Channel).

[0236] In other words, when the third radio frame includes the third identification field, the third radio frame is used to indicate that the third subchannel identified by the third identification field is the second channel shared by the first AP with the first STA and used for data transmission with the first STA within the first TXOP. When the third radio frame does not include the third identification field, the third radio frame is used to indicate that the primary channel is the second channel shared by the first AP with the first STA and used for data transmission with the first STA within the first TXOP.

[0237] In some embodiments, the third radio frame further includes a third identification bit, and when the identification value of the third identification bit is the second value, the third radio frame includes a third identification field. When the identification value of the third identification bit is the third value, the third radio frame does not include the third identification field.

[0238] In other words, when the identification value of the third identification bit is the second value, the third radio frame also includes a third identification field, and the third radio frame indicates, through the third identification bit, that the third subchannel identified by the third identification field is the second channel shared by the first AP with the first STA and used for data transmission with the first STA within the first TXOP. When the identification value of the third identification bit is the third value, the third radio frame does not include the third identification field, and the third radio frame indicates, through the third identification bit, that the second channel shared by the first AP with the first STA and used for data transmission with the first STA within the first TXOP is the primary channel.

[0239] The second value and the third value are different values. For example, the second value may be 1 and the third value may be 0, which is not limited here.

[0240] In some embodiments, the third radio frame includes a third M-AP Coordination element.

[0241] The third M-AP Coordination element includes a third C-TDMA Parameter Set field, and the third C-TDMA Parameter Set field includes a third C-TDMA Parameter Info field and a third C-TDMA Parameter Control field.

[0242] The third C-TDMA Parameter Control field includes a third identification bit, and when the third radio frame includes the third identification bit, the third C-TDMA Parameter Info field includes a third identification field. That is, when the identification value of the third identification bit is the second value, the third C-TDMA Parameter Info field includes the third identification field, and when the identification value of the third identification bit is the third value, the third C-TDMA Parameter Info field does not include the third identification field.

[0243] S24: The first AP sends a first trigger frame after the first TXOP starts. The first trigger frame is used to allocate a first RU corresponding to the second channel to the first STA.

[0244] In some embodiments, the first AP may send a first trigger frame to the first STA after the first TXOP starts, where the first trigger frame is used to allocate a first resource unit (RU) corresponding to the second channel to the first STA.

[0245] The first AP may determine the first RU corresponding to the second channel according to the buffer status (Buffer Status) of the first STA, and allocate the first RU to the first STA through a first trigger frame.

[0246] The total bandwidth corresponding to the first RU is less than or equal to the channel bandwidth of the second channel.

[0247] Based on this, after the first AP allocates the first RU corresponding to the second channel to the first STA, after the first TXOP starts, the first AP and the first STA can implement data transmission based on the second channel through the first RU.

[0248] S25 , the second AP sends a second trigger frame after the first TXOP starts, where the second trigger frame is used to allocate a second RU corresponding to the third channel to the second STA.

[0249] In some embodiments, the second AP may send a second trigger frame to the second STA after the first TXOP starts, where the second trigger frame is used to allocate a second RU corresponding to the third channel to the second STA.

[0250] The second AP may determine the second RU corresponding to the third channel according to the buffer status of the second STA, and allocate the second RU to the second STA through the second trigger frame.

[0251] The third channel is a remaining channel reserved by the second AP after the second AP shares the second channel with the first AP.

[0252] For example, the operating bandwidth of the second AP is 80 MHz, the second channel shared by the second AP to the first AP is the lowest frequency 40 MHz bandwidth sub-channel, and the third channel reserved by the second AP is the highest frequency 40 MHz bandwidth sub-channel.

[0253] The total bandwidth corresponding to the second RU is less than or equal to the channel bandwidth of the third channel.

[0254] Based on this, after the second AP allocates the second RU corresponding to the third channel to the second STA, after the first TXOP starts, the second AP and the second STA can implement data transmission based on the third channel through the second RU.

[0255] The communication method provided by the present disclosure is further described below with reference to Figure 3b. As shown in Figure 3b, AP1 is a Shared AP, AP2 is a Sharing AP, the BSS where AP1 is located is BSS1, the BSS where AP2 is located is BSS2, AP1 is associated with STA1, and AP2 is associated with STA2. After holding a TXOP, AP2 can share part of the transmission time of the held TXOP with AP1 as the first TXOP.

[0256] AP1 can send a first radio frame to the AP, indicating through the first radio frame the first channel that the first AP desires to use for data transmission with STA1 within the first TXOP. If the operating bandwidth of the basic service set (BSS1) in which AP1 resides is 80 MHz, AP1 can use the first radio frame to indicate that the first channel that the first AP desires to use for data transmission with STA1 within the first TXOP is the two lowest-frequency 20 MHz bandwidth sub-channels.

[0257] After receiving the first radio frame, AP2 can send a second radio frame to AP1 and, through the second radio frame, allocate to AP1 a second channel for data transmission with STA1 within the first TXOP. For example, AP2 can allocate to AP1 a 20 MHz bandwidth subchannel with the highest frequency through the second radio frame as the second channel for data transmission with STA1 within the first TXOP.

[0258] After receiving the second radio frame, AP1 may send a third radio frame to AP2 and STA1 to respond to the second radio frame and share the second channel allocated by AP2 with STA1.

[0259] After the first TXOP begins, AP1 may send a first trigger frame to STA1 to allocate the first RU corresponding to the second channel to STA1. Data transmission between AP1 and STA1 is performed over the second channel within BSS1 based on the first RU. The total bandwidth of the first RU does not exceed the channel bandwidth of the second channel. Simultaneously, AP2 may send a second trigger frame to STA2 to allocate the second RU corresponding to the third channel reserved by AP2 to STA2. Data transmission between AP1 and STA2 is performed over the third channel within BSS2 based on the second RU. The total bandwidth of the second RU does not exceed the channel bandwidth of the third channel.

[0260] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, any one of steps S21-S25 can be implemented as an independent embodiment, and any combination of steps S21-S25 can be implemented as an independent embodiment, but the present disclosure is not limited thereto. The order in which steps S24 and S25 are executed is not limited herein, and steps S24 and S25 can be executed simultaneously.

[0261] FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the method is executed by a first AP and includes:

[0262] S41 , determining a first radio frame, where the first radio frame is used to indicate a first channel that a first AP desires to use for data transmission with a first STA within a first TXOP shared with a second AP.

[0263] In some embodiments, the first STA is at least one STA located in a BSS where the first AP is located and associated with the first AP. The first AP may be a Shared AP.

[0264] In some embodiments, the first radio frame may be used to request C-TDMA multi-AP coordination. That is, the first radio frame may be used to request C-TDMA multi-AP coordination while indicating that the first AP desires to transmit data on a first channel with the first STA within a first TXOP shared by the second AP.

[0265] In some embodiments, the first radio frame includes a first identification field, and the first identification field is used to identify the first subchannel.

[0266] Optionally, the first identification field can be used to identify the first channel index value. Different channel index values ​​correspond to different 20MHz bandwidth subchannels (Subchannel). The first wireless frame can indirectly identify the 20MHz bandwidth subchannel corresponding to the first channel index value as the first subchannel through the first channel index value.

[0267] The first channel index value may include a channel index value corresponding to at least one 20 MHz bandwidth sub-channel.

[0268] Optionally, the first identification field includes multiple bits, each bit corresponds to a different 20MHz sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20MHz bandwidth sub-channel as the first sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20MHz bandwidth sub-channel as not the first sub-channel.

[0269] That is, the first identification field indicates that the 20 MHz bandwidth sub-channel corresponding to any bit is the first sub-channel by setting the identification value of any bit to the first value.

[0270] The number of bits in the first identification field is associated with the working bandwidth of the BSS where the first AP is located.

[0271] The first value and the fourth value are different values. For example, the first value may be 1 and the fourth value may be 0, which is not limited here.

[0272] As an example, when the working bandwidth of the BSS where the first AP is located is greater than 160MHz, the first identification field includes 16 bits, each bit corresponds to a different 20MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20MHz bandwidth sub-channel is identified as the first sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20MHz bandwidth sub-channel is not identified as the first sub-channel.

[0273] When the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the first identification field includes 8 bits, each bit corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20 MHz bandwidth sub-channel is identified as the first sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20 MHz bandwidth sub-channel is not identified as the first sub-channel.

[0274] Optionally, the first identification field may be a coordinated time division multiple access channel bitmap (C-TDMA Channel Bitmap) field.

[0275] In some embodiments, when the first radio frame includes the first identification field, the first subchannel identified by the first identification field is the first channel indicated by the first radio frame that the first AP expects to use for data transmission with the first STA within the first TXOP.

[0276] When the first radio frame does not include the first identification field, the first channel that the first AP expects to use for data transmission with the first STA in the first TXOP is a primary channel.

[0277] In some embodiments, the first radio frame further includes a first identification bit, and when the identification value of the first identification bit is the second value, the first radio frame includes a first identification field. When the identification value of the first identification bit is the third value, the first radio frame does not include the first identification field.

[0278] The second value and the third value are different values. For example, the second value may be 1 and the third value may be 0, which is not limited here.

[0279] In some embodiments, the first radio frame includes a first M-AP Coordination element.

[0280] The first M-AP Coordination element includes a first C-TDMA Parameter Set field, and the first C-TDMA Parameter Set field includes a first C-TDMA Parameter Info field and a first C-TDMA Parameter Control field.

[0281] The first C-TDMA Parameter Control field includes the first identification bit, and when the first radio frame includes the first identification field, the first C-TDMA Parameter Info field includes the first identification field. That is, when the identification value of the first identification bit is the second value, the first C-TDMA Parameter Info field includes the first identification field, and when the identification value of the first identification bit is the third value, the first C-TDMA Parameter Info field does not include the first identification field.

[0282] S42, sending a first wireless frame.

[0283] After determining the first radio frame, the first AP may send the first radio frame to the second AP before starting the first TXOP.

[0284] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, any one of steps S41 and S42 may be implemented as an independent embodiment, and steps S41 and S42 may be implemented as independent embodiments, but are not limited thereto.

[0285] FIG5 is a second flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the method is executed by a first AP and includes:

[0286] S51 : Determine a first radio frame, where the first radio frame is used to indicate a first channel that a first AP desires to use for data transmission with a first STA within a first TXOP shared with a second AP.

[0287] S52: Send a first wireless frame.

[0288] In some embodiments, the implementation of step S51-step S52 can refer to the implementation shown in step S41-step S42 in Figure 4, and will not be repeated here.

[0289] S53: Receive a second radio frame, where the second radio frame is used to allocate a second channel for performing data transmission with the first STA in the first TXOP to the first AP.

[0290] In some embodiments, the second AP may be a Sharing AP.

[0291] In some embodiments, the second radio frame can be used to respond to the C-TDMA multi-AP coordination request. That is, the second radio frame can be used to respond to the C-TDMA multi-AP coordination request while allocating to the first AP a second channel for data transmission between the first AP and the first STA within the first TXOP shared by the second AP.

[0292] In some embodiments, the second radio frame includes a second identification field, and the second identification field is used to identify the second sub-channel.

[0293] Optionally, the second identification field can be used to identify the second channel index value. Different channel index values ​​correspond to different 20MHz bandwidth subchannels (Subchannel). The second wireless frame can indirectly identify the 20MHz bandwidth subchannel corresponding to the second channel index value as the second subchannel through the second channel index value.

[0294] The second channel index value may include a channel index value corresponding to at least one 20 MHz bandwidth sub-channel.

[0295] Optionally, the second identification field includes multiple bits, each bit corresponds to a different 20MHz sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20MHz bandwidth sub-channel as the second sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20MHz bandwidth sub-channel as not the second sub-channel.

[0296] That is, the second identification field indicates that the 20 MHz bandwidth sub-channel corresponding to any bit is the second sub-channel by setting the identification value of any bit to the first value.

[0297] The number of bits in the second identification field is associated with the working bandwidth of the BSS where the first AP is located.

[0298] The working bandwidth of the BSS where the first AP is located is the same as the working bandwidth of the BSS where the second AP is located. The first AP and the second AP are two APs that form overlapping basic service sets in the BSSs where they are located.

[0299] The first value and the fourth value are different values. For example, the first value may be 1 and the fourth value may be 0, which is not limited here.

[0300] As an example, when the working bandwidth of the BSS where the first AP is located is greater than 160MHz, the second identification field includes 16 bits, each bit corresponds to a different 20MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20MHz bandwidth sub-channel is identified as the second sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20MHz bandwidth sub-channel is not identified as the second sub-channel.

[0301] When the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the second identification field includes 8 bits, each bit corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20 MHz bandwidth sub-channel as the second sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20 MHz bandwidth sub-channel as not the second sub-channel.

[0302] Optionally, the second identification field may be a C-TDMA Channel Bitmap field.

[0303] In some embodiments, when the second radio frame includes the second identification field, the second subchannel identified by the second identification field is a second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA within the first TXOP.

[0304] When the second radio frame does not include the second identification field, the second channel allocated by the second AP to the first AP and used by the first AP to perform data transmission with the first STA within the first TXOP is a primary channel (Primary Channel).

[0305] In some embodiments, the second radio frame further includes a second identification bit, and when the identification value of the second identification bit is the second value, the second radio frame includes a second identification field. When the identification value of the second identification bit is a third value, the second radio frame does not include the second identification field.

[0306] In some embodiments, the second radio frame includes a second M-AP Coordination element.

[0307] The second value and the third value are different values. For example, the second value may be 1 and the third value may be 0, which is not limited here.

[0308] The second M-AP Coordination element includes a second C-TDMA Parameter Set field, and the second C-TDMA Parameter Set field includes a second C-TDMA Parameter Info field and a second C-TDMA Parameter Control field.

[0309] The second C-TDMA Parameter Control field includes the second identification bit, and when the second radio frame includes the second identification field, the second C-TDMA Parameter Info field includes the second identification field. That is, when the identification value of the second identification bit is the second value, the second C-TDMA Parameter Info field includes the second identification field, and when the identification value of the second identification bit is the third value, the second C-TDMA Parameter Info field does not include the second identification field.

[0310] S54: Send a third radio frame, where the third radio frame is used to respond to the second radio frame and / or to share the second channel with the first STA.

[0311] In some embodiments, after the first AP receives the second radio frame and determines the second channel, the first AP may send a third radio frame.

[0312] The third radio frame is used to respond to the second radio frame and / or to share the second channel allocated by the second AP to the first AP with the first STA.

[0313] As an example, after receiving the second wireless frame, the first AP can send a third wireless frame to the first STA and the second AP simultaneously by broadcasting, so as to respond to the second wireless frame while sharing with the first STA the second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA within the first TXOP.

[0314] When the first AP sends the third wireless frame in a broadcast manner, a receiving address (RA) of the third wireless frame is a broadcast address.

[0315] Optionally, after receiving the second radio frame, the first AP may send a third radio frame to the second AP and the first STA respectively, so as to share the second channel with the first STA through a separate third radio frame, and respond to the second radio frame through another third radio frame.

[0316] In some embodiments, when the third radio frame is used to share the second channel with the first STA, the third radio frame may include a third identification field, where the third identification field is used to identify the third sub-channel.

[0317] Optionally, the third identification field can be used to identify the third channel index value. Different channel index values ​​correspond to different 20MHz bandwidth subchannels (Subchannel). The third wireless frame can indirectly identify the 20MHz bandwidth subchannel corresponding to the third channel index value as the second subchannel through the third channel index value.

[0318] The third channel index value may include a channel index value corresponding to at least one 20 MHz bandwidth sub-channel.

[0319] Optionally, the third identification field includes multiple bits, each bit corresponds to a different 20MHz sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20MHz bandwidth sub-channel as the third sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20MHz bandwidth sub-channel as not the third sub-channel.

[0320] That is, the third identification field indicates that the 20 MHz bandwidth sub-channel corresponding to any bit is the third sub-channel by setting the identification value of any bit to the first value.

[0321] The number of bits in the third identification field is associated with the working bandwidth of the BSS where the first AP is located.

[0322] The first value and the fourth value are different values. For example, the first value may be 1 and the fourth value may be 0, which is not limited here.

[0323] As an example, when the working bandwidth of the BSS where the first AP is located is greater than 160MHz, the third identification field includes 16 bits, each bit corresponds to a different 20MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20MHz bandwidth sub-channel is identified as the third sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20MHz bandwidth sub-channel is not identified as the third sub-channel.

[0324] When the working bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the third identification field includes 8 bits, each bit corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20 MHz bandwidth sub-channel as the third sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20 MHz bandwidth sub-channel as not the third sub-channel.

[0325] Optionally, the third identification field may be a C-TDMA Channel Bitmap field.

[0326] In some embodiments, when the third radio frame includes a third identification field, the third subchannel identified by the third identification field is a second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA in the first TXOP.

[0327] When the third radio frame does not include the third identification field, the second channel shared by the first AP with the first STA and used for data transmission with the first STA within the first TXOP is a primary channel (Primary Channel).

[0328] In some embodiments, the third radio frame further includes a third identification bit, and when the identification value of the third identification bit is the second value, the third radio frame includes a third identification field. When the identification value of the third identification bit is the third value, the third radio frame does not include the third identification field.

[0329] The second value and the third value are different values. For example, the second value may be 1 and the third value may be 0, which is not limited here.

[0330] In some embodiments, the third radio frame includes a third M-AP Coordination element.

[0331] The third M-AP Coordination element includes a third C-TDMA Parameter Set field, and the third C-TDMA Parameter Set field includes a third C-TDMA Parameter Info field and a third C-TDMA Parameter Control field.

[0332] The third C-TDMA Parameter Control field includes a third identification bit, and when the third radio frame includes the third identification bit, the third C-TDMA Parameter Info field includes a third identification field. That is, when the identification value of the third identification bit is the second value, the third C-TDMA Parameter Info field includes the third identification field, and when the identification value of the third identification bit is the third value, the third C-TDMA Parameter Info field does not include the third identification field.

[0333] S55 : Send a first trigger frame after the first TXOP starts, where the first trigger frame is used to allocate a first RU corresponding to the second channel to the first STA.

[0334] In some embodiments, the first AP may send a first trigger frame to the first STA after the first TXOP starts, where the first trigger frame is used to allocate a first RU corresponding to the second channel to the first STA.

[0335] The first AP may determine the first RU corresponding to the second channel according to the cache status of the first STA, and allocate the first RU to the first STA through a first trigger frame.

[0336] The total bandwidth corresponding to the first RU is less than or equal to the channel bandwidth of the second channel.

[0337] Based on this, after the first AP allocates the first RU corresponding to the second channel to the first STA, after the first TXOP starts, the first AP and the first STA can implement data transmission based on the second channel through the first RU.

[0338] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, any one of steps S51 to S55 may be implemented as an independent embodiment, and steps S51 to S55 may be implemented as an independent embodiment, but are not limited thereto.

[0339] FIG6 is a third flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6 , the method is executed by the second AP and includes:

[0340] S61 : Receive a first radio frame, where the first radio frame is used to indicate a first channel that a first AP desires to use for data transmission with a first STA within a first TXOP shared by a second AP.

[0341] In some embodiments, the first STA is at least one STA located in a BSS where the first AP is located and associated with the first AP. The first AP may be a Shared AP.

[0342] In some embodiments, the first radio frame may be used to request C-TDMA multi-AP coordination. That is, the first radio frame may be used to request C-TDMA multi-AP coordination while indicating that the first AP desires to transmit data on a first channel with the first STA within a first TXOP shared by the second AP.

[0343] In some embodiments, the first radio frame includes a first identification field, and the first identification field is used to identify the first subchannel.

[0344] Optionally, the first identification field can be used to identify the first channel index value. Different channel index values ​​correspond to different 20MHz bandwidth subchannels (Subchannel). The first wireless frame can indirectly identify the 20MHz bandwidth subchannel corresponding to the first channel index value as the first subchannel through the first channel index value.

[0345] The first channel index value may include a channel index value corresponding to at least one 20 MHz bandwidth sub-channel.

[0346] Optionally, the first identification field includes multiple bits, each bit corresponds to a different 20MHz sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20MHz bandwidth sub-channel as the first sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20MHz bandwidth sub-channel as not the first sub-channel.

[0347] That is, the first identification field indicates that the 20 MHz bandwidth sub-channel corresponding to any bit is the first sub-channel by setting the identification value of any bit to the first value.

[0348] The number of bits in the first identification field is associated with the working bandwidth of the BSS where the first AP is located.

[0349] The first value and the fourth value are different values. For example, the first value may be 1 and the fourth value may be 0, which is not limited here.

[0350] As an example, when the working bandwidth of the BSS where the first AP is located is greater than 160MHz, the first identification field includes 16 bits, each bit corresponds to a different 20MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20MHz bandwidth sub-channel is identified as the first sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20MHz bandwidth sub-channel is not identified as the first sub-channel.

[0351] When the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the first identification field includes 8 bits, each bit corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20 MHz bandwidth sub-channel is identified as the first sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20 MHz bandwidth sub-channel is not identified as the first sub-channel.

[0352] Optionally, the first identification field may be a coordinated time division multiple access channel bitmap (C-TDMA Channel Bitmap) field.

[0353] In some embodiments, when the first radio frame includes the first identification field, the first subchannel identified by the first identification field is the first channel indicated by the first radio frame that the first AP expects to use for data transmission with the first STA within the first TXOP.

[0354] When the first radio frame does not include the first identification field, the first channel that the first AP expects to use for data transmission with the first STA in the first TXOP is a primary channel.

[0355] In some embodiments, the first radio frame further includes a first identification bit, and when the identification value of the first identification bit is the second value, the first radio frame includes a first identification field. When the identification value of the first identification bit is the third value, the first radio frame does not include the first identification field.

[0356] The second value and the third value are different values. For example, the second value may be 1 and the third value may be 0, which is not limited here.

[0357] In some embodiments, the first radio frame includes a first M-AP Coordination element.

[0358] The first M-AP Coordination element includes a first C-TDMA Parameter Set field, and the first C-TDMA Parameter Set field includes a first C-TDMA Parameter Info field and a first C-TDMA Parameter Control field.

[0359] The first C-TDMA Parameter Control field includes the first identification bit, and when the first radio frame includes the first identification field, the first C-TDMA Parameter Info field includes the first identification field. That is, when the identification value of the first identification bit is the second value, the first C-TDMA Parameter Info field includes the first identification field, and when the identification value of the first identification bit is the third value, the first C-TDMA Parameter Info field does not include the first identification field.

[0360] FIG7 is a fourth flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG7 , the method is executed by the second AP and includes:

[0361] S71 : Receive a first radio frame, where the first radio frame is used to indicate a first channel that a first AP desires to use for data transmission with a first STA within a first TXOP shared by a second AP.

[0362] In some embodiments, the implementation of step S71 can refer to the implementation shown in step S61 in Figure 6, and will not be repeated here.

[0363] S72: Send a second radio frame, where the second radio frame is used to allocate a second channel for performing data transmission with the first STA in the first TXOP to the first AP.

[0364] In some embodiments, the second AP may be a Sharing AP.

[0365] In some embodiments, the second radio frame can be used to respond to the C-TDMA multi-AP coordination request. That is, the second radio frame can be used to respond to the C-TDMA multi-AP coordination request while allocating to the first AP a second channel for data transmission between the first AP and the first STA within the first TXOP shared by the second AP.

[0366] In some embodiments, the second radio frame includes a second identification field, and the second identification field is used to identify the second sub-channel.

[0367] Optionally, the second identification field can be used to identify the second channel index value. Different channel index values ​​correspond to different 20MHz bandwidth subchannels (Subchannel). The second wireless frame can indirectly identify the 20MHz bandwidth subchannel corresponding to the second channel index value as the second subchannel through the second channel index value.

[0368] The second channel index value may include a channel index value corresponding to at least one 20 MHz bandwidth sub-channel.

[0369] Optionally, the second identification field includes multiple bits, each bit corresponds to a different 20MHz sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20MHz bandwidth sub-channel as the second sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20MHz bandwidth sub-channel as not the second sub-channel.

[0370] That is, the second identification field indicates that the 20 MHz bandwidth sub-channel corresponding to any bit is the second sub-channel by setting the identification value of any bit to the first value.

[0371] The number of bits in the second identification field is associated with the working bandwidth of the BSS where the first AP is located.

[0372] The working bandwidth of the BSS where the first AP is located is the same as the working bandwidth of the BSS where the second AP is located. The first AP and the second AP are two APs that form overlapping basic service sets in the BSSs where they are located.

[0373] The first value and the fourth value are different values. For example, the first value may be 1 and the fourth value may be 0, which is not limited here.

[0374] As an example, when the working bandwidth of the BSS where the first AP is located is greater than 160MHz, the second identification field includes 16 bits, each bit corresponds to a different 20MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20MHz bandwidth sub-channel is identified as the second sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20MHz bandwidth sub-channel is not identified as the second sub-channel.

[0375] When the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the second identification field includes 8 bits, each bit corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20 MHz bandwidth sub-channel as the second sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20 MHz bandwidth sub-channel as not the second sub-channel.

[0376] Optionally, the second identification field may be a C-TDMA Channel Bitmap field.

[0377] In some embodiments, when the second radio frame includes the second identification field, the second subchannel identified by the second identification field is a second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA within the first TXOP.

[0378] When the second radio frame does not include the second identification field, the second channel allocated by the second AP to the first AP and used by the first AP to perform data transmission with the first STA within the first TXOP is a primary channel (Primary Channel).

[0379] In some embodiments, the second radio frame further includes a second identification bit, and when the identification value of the second identification bit is the second value, the second radio frame includes a second identification field. When the identification value of the second identification bit is a third value, the second radio frame does not include the second identification field.

[0380] In some embodiments, the second radio frame includes a second M-AP Coordination element.

[0381] The second value and the third value are different values. For example, the second value may be 1 and the third value may be 0, which is not limited here.

[0382] The second M-AP Coordination element includes a second C-TDMA Parameter Set field, and the second C-TDMA Parameter Set field includes a second C-TDMA Parameter Info field and a second C-TDMA Parameter Control field.

[0383] The second C-TDMA Parameter Control field includes the second identification bit, and when the second radio frame includes the second identification field, the second C-TDMA Parameter Info field includes the second identification field. That is, when the identification value of the second identification bit is the second value, the second C-TDMA Parameter Info field includes the second identification field, and when the identification value of the second identification bit is the third value, the second C-TDMA Parameter Info field does not include the second identification field.

[0384] S73: Receive a third radio frame, where the third radio frame is used to respond to the second radio frame and / or to share the second channel with the first STA.

[0385] In some embodiments, the third radio frame is sent by the first AP after receiving the second radio frame and determining the second channel.

[0386] The third radio frame is used to respond to the second radio frame and / or to share the second channel allocated by the second AP to the first AP with the first STA.

[0387] As an example, the second AP may receive a third wireless frame sent by the first AP via broadcast, where the third wireless frame is used to respond to the second wireless frame and to share with the first STA the second channel allocated by the second AP to the first AP for the first AP to transmit data with the first STA within the first TXOP.

[0388] The receiving address (RA) of the third radio frame is a broadcast address.

[0389] Optionally, the second AP may receive a third radio frame sent solely to it by the first AP, where the third radio frame is used to respond to the second radio frame.

[0390] In some embodiments, when the third radio frame is used to share the second channel with the first STA, the third radio frame may include a third identification field, where the third identification field is used to identify the third sub-channel.

[0391] Optionally, the third identification field can be used to identify the third channel index value. Different channel index values ​​correspond to different 20MHz bandwidth subchannels (Subchannel). The third wireless frame can indirectly identify the 20MHz bandwidth subchannel corresponding to the third channel index value as the second subchannel through the third channel index value.

[0392] The third channel index value may include a channel index value corresponding to at least one 20 MHz bandwidth sub-channel.

[0393] Optionally, the third identification field includes multiple bits, each bit corresponds to a different 20MHz sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20MHz bandwidth sub-channel as the third sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20MHz bandwidth sub-channel as not the third sub-channel.

[0394] That is, the third identification field indicates that the 20 MHz bandwidth sub-channel corresponding to any bit is the third sub-channel by setting the identification value of any bit to the first value.

[0395] The number of bits in the third identification field is associated with the working bandwidth of the BSS where the first AP is located.

[0396] The first value and the fourth value are different values. For example, the first value may be 1 and the fourth value may be 0, which is not limited here.

[0397] As an example, when the working bandwidth of the BSS where the first AP is located is greater than 160MHz, the third identification field includes 16 bits, each bit corresponds to a different 20MHz bandwidth sub-channel, and when the identification value of each bit is the first value, the corresponding 20MHz bandwidth sub-channel is identified as the third sub-channel, and when the identification value of each bit is the fourth value, the corresponding 20MHz bandwidth sub-channel is not identified as the third sub-channel.

[0398] When the working bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the third identification field includes 8 bits, each bit corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit is the first value, it identifies the corresponding 20 MHz bandwidth sub-channel as the third sub-channel; when the identification value of each bit is the fourth value, it identifies the corresponding 20 MHz bandwidth sub-channel as not the third sub-channel.

[0399] Optionally, the third identification field may be a C-TDMA Channel Bitmap field.

[0400] In some embodiments, when the third radio frame includes a third identification field, the third subchannel identified by the third identification field is a second channel allocated by the second AP to the first AP and used by the first AP to transmit data with the first STA in the first TXOP.

[0401] When the third radio frame does not include the third identification field, the second channel shared by the first AP with the first STA and used for data transmission with the first STA within the first TXOP is a primary channel (Primary Channel).

[0402] In some embodiments, the third radio frame further includes a third identification bit, and when the identification value of the third identification bit is the second value, the third radio frame includes a third identification field. When the identification value of the third identification bit is the third value, the third radio frame does not include the third identification field.

[0403] The second value and the third value are different values. For example, the second value may be 1 and the third value may be 0, which is not limited here.

[0404] In some embodiments, the third radio frame includes a third M-AP Coordination element.

[0405] The third M-AP Coordination element includes a third C-TDMA Parameter Set field, and the third C-TDMA Parameter Set field includes a third C-TDMA Parameter Info field and a third C-TDMA Parameter Control field.

[0406] The third C-TDMA Parameter Control field includes a third identification bit, and when the third radio frame includes the third identification bit, the third C-TDMA Parameter Info field includes a third identification field. That is, when the identification value of the third identification bit is the second value, the third C-TDMA Parameter Info field includes the third identification field, and when the identification value of the third identification bit is the third value, the third C-TDMA Parameter Info field does not include the third identification field.

[0407] S74: Send a second trigger frame after the first TXOP starts. The second trigger frame is used to allocate a second RU corresponding to the third channel to the second STA.

[0408] In some embodiments, the second AP may send a second trigger frame to the second STA after the first TXOP starts, where the second trigger frame is used to allocate a second RU corresponding to the third channel to the second STA.

[0409] The second AP may determine the second RU corresponding to the third channel according to the buffer status of the second STA, and allocate the second RU to the second STA through the second trigger frame.

[0410] The third channel is a remaining channel reserved by the second AP after the second AP shares the second channel with the first AP.

[0411] For example, the operating bandwidth of the second AP is 80 MHz, the second channel shared by the second AP to the first AP is the lowest frequency 40 MHz bandwidth sub-channel, and the third channel reserved by the second AP is the highest frequency 40 MHz bandwidth sub-channel.

[0412] The total bandwidth corresponding to the second RU is less than or equal to the channel bandwidth of the third channel.

[0413] Based on this, after the second AP allocates the second RU corresponding to the third channel to the second STA, after the first TXOP starts, the second AP and the second STA can implement data transmission based on the third channel through the second RU.

[0414] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, any one of steps S71 to S74 may be implemented as an independent embodiment, and any combination of steps S71 to S74 may be implemented as an independent embodiment, but the present disclosure is not limited thereto.

[0415] FIG8 a is a schematic diagram of an AP structure according to an embodiment of the present disclosure. As shown in FIG8 a , an AP 810 may include a processing module 811 and a transceiver module 812 .

[0416] In some embodiments, the processing module 811 is configured to determine a first radio frame, where the first radio frame is configured to indicate a first channel that the first AP desires to transmit data to a first STA within a first transmission opportunity TXOP shared by a second AP, where the first STA is associated with the first AP;

[0417] The transceiver module 812 is configured to send a first wireless frame.

[0418] Optionally, the processing module 811 is configured to execute at least one of the processing steps (eg, step S51 and step S41 , but not limited thereto) executed by the first AP in any of the above methods, which will not be described in detail here.

[0419] Optionally, the above-mentioned transceiver module 812 is used to execute at least one of the transceiver steps (such as step S21, step S23, step S24, step S42, step S52-step S55, but not limited to these) performed by the first AP in any of the above methods, which will not be repeated here.

[0420] FIG8 b is a second schematic diagram of the structure of an AP proposed in an embodiment of the present disclosure. As shown in FIG8 b , an AP 820 may include a transceiver module 821 .

[0421] In some embodiments, the transceiver module 821 is configured to receive a first wireless frame, where the first wireless frame indicates a first channel that the first AP desires to use for data transmission with a first STA within a first transmission opportunity TXOP shared by a second AP, and the first STA is associated with the first AP.

[0422] Optionally, the above-mentioned transceiver module 821 is used to execute at least one of the transceiver steps (such as step S22, step S25, step S61, step S71-step S74 but not limited thereto) performed by the second AP in any of the above methods, which will not be repeated here.

[0423] It should be understood that the division of the above units or modules is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a single physical entity, or they may be physically separated. In addition, the units or modules may be implemented in the form of a processor calling software: for example, including a processor connected to a memory, the memory storing instructions, and the processor calling the instructions stored in the memory to implement any of the above methods or the functions of the above units or modules, where the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside or outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the remaining part by the form of hardware circuits.

[0424] In the embodiment 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 execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above 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), etc.

[0425] Figure 9 is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure. Communication device 900 can be a first AP or a second AP, or can be a chip, chip system, or processor that supports the first AP or the second AP in implementing any of the above methods. The communication device can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0426] As shown in Figure 9, the communication device 900 includes one or more processors 901. The processor 901 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 900 is used to perform any of the above methods.

[0427] In some embodiments, the communication device 900 further includes one or more memories 902 for storing instructions. Optionally, all or part of the memory 902 may also be outside the communication device 900.

[0428] In some embodiments, the communication device 900 further includes one or more transceivers 903. When the communication device 900 includes one or more transceivers 903, the transceiver 903 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, steps S21 to S25, step S42, step S52 to S55, step S61, step S71 to S74, but not limited thereto), and the processor 901 performs at least one of the other steps (for example, step S41 and step S51, but not limited thereto).

[0429] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0430] In some embodiments, the communication device 900 may include one or more interface circuits 904. Optionally, the interface circuit 904 is connected to the memory 902. The interface circuit 904 may be configured to receive signals from the memory 902 or other devices, and may be configured to send signals to the memory 902 or other devices. For example, the interface circuit 904 may read instructions stored in the memory 902 and send the instructions to the processor 901.

[0431] The communication device 900 described in the above embodiment may be the first AP or the second AP, but the scope of the communication device 900 described in the present disclosure is not limited thereto, and the structure of the communication device 900 may not be limited by FIG10. The communication device may be an independent device or may be part of a larger device. For example, the above communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0432] 10 is a schematic diagram of the structure of a chip 1000 according to an embodiment of the present disclosure. The chip 1000 includes one or more processors 1001, and the chip 1000 is configured to execute any of the above methods.

[0433] In some embodiments, chip 1000 further includes one or more interface circuits 1003. Optionally, interface circuit 1003 is connected to memory 1002. Interface circuit 1003 can be used to receive signals from memory 1002 or other devices, and interface circuit 1003 can be used to send signals to memory 1002 or other devices. For example, interface circuit 1003 can read instructions stored in memory 1002 and send the instructions to processor 1001.

[0434] In some embodiments, the interface circuit 1003 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step S21-step S25, step S42, step S52-step S55, step S61, step S71-step S74, but not limited to these), and the processor 1001 executes at least one of the other steps (for example, step S41, step S51, but not limited to these).

[0435] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0436] In some embodiments, the chip 1000 further includes one or more memories 1002 for storing instructions. Alternatively, all or part of the memory 1002 may be external to the chip 1000.

[0437] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the communication device 900, the communication device 900 executes 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 thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0438] The present disclosure also provides a program product, which, when executed by the communication device 900, enables the communication device 900 to perform any of the above methods. Optionally, the program product is a computer program product.

[0439] The present disclosure also proposes a computer program, which, when run on a computer, enables the computer to execute any of the above methods. The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned disclosed concepts. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A communication method, characterized in that, Applied to a first AP, the method includes: Determine a first wireless frame, where the first wireless frame is used to indicate a first channel on which the first AP expects to perform data transmission with a first STA within a first transmission opportunity (TXOP) shared by a second AP, and the first STA is associated with the first AP; Send the first wireless frame.

2. The method according to claim 1, characterized in that When the first wireless frame includes a first identification field, the first channel is a first subchannel identified by the first identification field; When the first wireless frame does not include the first identification field, the first channel is the primary channel.

3. The method according to claim 2, characterized in that When the operating bandwidth of the basic service set (BSS) where the first AP is located is greater than 160 MHz, the first identification field includes 16 bits; when the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the first identification field includes 8 bits; Wherein, each bit of the first identification field corresponds to a different 20 MHz bandwidth subchannel, and when the identification value of each bit of the first identification field is a first value, it indicates that the corresponding 20 MHz bandwidth subchannel is the first subchannel.

4. The method according to claim 2, wherein The first wireless frame includes a first identification bit. When the identification value of the first identification bit is a second value, the first wireless frame includes the first identification field; when the identification value of the first identification bit is a third value, the first wireless frame does not include the first identification field.

5. The method according to claim 1, wherein The method further includes: Receive a second wireless frame, where the second wireless frame is used to allocate a second channel for the first AP to perform data transmission with the first STA within the first TXOP.

6. The method according to claim 5, wherein The method further includes: Send a third wireless frame, where the third wireless frame is used for at least one of the following: Respond to the second wireless frame; Share the second channel with the first STA.

7. The method according to claim 6, wherein When the third wireless frame includes a third identification field, the second channel is a third subchannel identified by the third identification field; When the third wireless frame does not include the third identification field, the second channel is the primary channel.

8. The method according to claim 7, wherein When the operating bandwidth of the BSS where the first AP is located is greater than 160 MHz, the third identification field includes 16 bits; when the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the third identification field includes 8 bits; Wherein, each bit of the third identification field corresponds to a different 20 MHz bandwidth subchannel, and when the identification value of each bit of the third identification field is a first value, it indicates that the corresponding 20 MHz bandwidth subchannel is the third subchannel.

9. The method according to claim 5, characterized in that, The method further includes: Send a first trigger frame after the start of the first TXOP, where the first trigger frame is used to allocate a first resource unit (RU) corresponding to the second channel to the first STA; Wherein, the total bandwidth corresponding to the first RU is less than or equal to the channel bandwidth of the second channel.

10. A communication method, characterized in that, Applied to a second AP, the method includes: Receive a first wireless frame, where the first wireless frame is used to indicate a first channel on which a first AP expects to perform data transmission with a first STA within a first TXOP shared by the second AP, and the first STA is associated with the first AP.

11. The method according to claim 10, wherein The method further includes: Send a second wireless frame, where the second wireless frame is used to allocate a second channel for the first AP to perform data transmission with the first STA within the first TXOP.

12. The method according to claim 11, wherein When the second wireless frame includes a second identification field, the second channel is a second sub-channel identified by the second identification field; When the second wireless frame does not include the second identification field, the second channel is the primary channel.

13. The method according to claim 12, wherein When the operating bandwidth of the BSS where the first AP is located is greater than 160 MHz, the second identification field includes 16 bits. When the operating bandwidth of the BSS where the first AP is located is less than or equal to 160 MHz, the second identification field includes 8 bits; Wherein, each bit of the second identification field respectively corresponds to a different 20 MHz bandwidth sub-channel, and when the identification value of each bit of the second identification field is a first value, it indicates that the corresponding 20 MHz bandwidth sub-channel is the second sub-channel.

14. The method according to claim 12, wherein The second wireless frame includes a second identification bit. When the identification value of the second identification bit is a second value, the second wireless frame includes the second identification bit; when the identification value of the second identification bit is a third value, the second wireless frame does not include the second identification bit.

15. The method according to claim 11, wherein The method further includes: Receiving a third wireless frame, where the third wireless frame is used for at least one of the following: Responding to the second wireless frame; Sharing the second channel with the first STA.

16. The method according to claim 11, wherein The method further includes: Sending a second trigger frame after the start of the first TXOP, where the second trigger frame is used to allocate a second RU corresponding to a third channel for a second STA; Wherein, the second STA is associated with the second AP, the third channel is a channel reserved by the second AP after allocating the second channel to the first AP, and the total bandwidth corresponding to the second RU is less than or equal to the channel bandwidth of the third channel.

17. An AP, characterized in that, Includes: A processing module, configured to determine a first wireless frame, where the first wireless frame is used to indicate a first channel for which a first AP expects to perform data transmission with a first STA within a first transmission opportunity TXOP shared by a second AP, and the first STA is associated with the first AP; A transceiver module, configured to send the first wireless frame.

18. An AP, characterized in that, Includes: A transceiver module, configured to receive a first wireless frame, where the first wireless frame is used to indicate a first channel for which a first AP expects to perform data transmission with a first STA within a first TXOP shared by a second AP, and the first STA is associated with the first AP.

19. A communication device, characterized in that, Includes: One or more processors; Wherein, the communication device is configured to execute the communication method according to any one of claims 1-9 or claims 10-16.

20. A storage medium, the storage medium stores instructions, characterized in that, When the instruction runs on the communication device, it causes the communication device to execute the communication method according to any one of claims 1-9 or claims 10-16.

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