Communication method, device, and storage medium

Abstract

The 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, applied to a data frame sender, comprises: negotiating with a data frame receiver at a first channel bandwidth a block acknowledgement (BA) feedback mechanism to be applied at a second channel bandwidth; sending a data frame at the second channel bandwidth; and, once the data frame is transmitted, performing BA feedback with the data frame receiver at the second channel bandwidth. The embodiments of the present disclosure can provide a means for negotiating a BA feedback mechanism, a means for transmitting data frames, and a means for BA feedback.

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] The continuous development of Ultra High Reliability (UHR) technology is placing higher demands on system throughput and transmission latency. To improve system throughput and reduce transmission latency, communication devices can switch to a secondary channel when the primary channel is busy, or aggregate the primary and secondary channels when both are idle, thereby increasing system throughput and reducing transmission latency.

[0003] During the communication process of communication devices, a Block Acknowledgment (BA) feedback mechanism exists to further improve communication quality. However, the existing BA feedback mechanism is not fully applicable to the above communication scenarios.

[0004] Summary of the Invention

[0005] Embodiments of the present disclosure provide a communication method, device, and storage medium.

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

[0007] Negotiate with the data frame receiver under the first channel bandwidth a block acknowledgement (BA) feedback mechanism to be applied under the second channel bandwidth;

[0008] The data frame is sent in the second channel bandwidth, and after the data frame transmission is completed, BA feedback is performed with the data frame receiver in the second channel bandwidth.

[0009] In a second aspect, an embodiment of the present disclosure provides a communication method, applied to a data frame receiver, the method comprising:

[0010] Negotiate with the data frame sender under the first channel bandwidth a BA feedback mechanism to be applied under the second channel bandwidth;

[0011] The data frame is received in the second channel bandwidth, and after completing the data frame transmission, BA feedback is performed with the data frame sender in the second channel bandwidth.

[0012] In a third aspect, an embodiment of the present disclosure provides a communication device, including:

[0013] A transceiver module is configured to negotiate with a data frame receiver under a first channel bandwidth a block acknowledgement (BA) feedback mechanism applied under a second channel bandwidth;

[0014] The transceiver module is configured to send data frames under the second channel bandwidth, and perform BA feedback with the data frame receiver under the second channel bandwidth after completing the data frame transmission.

[0015] In a fourth aspect, an embodiment of the present disclosure provides a communication device, including:

[0016] A transceiver module, configured to negotiate with a data frame sender under a first channel bandwidth a BA feedback mechanism applied under a second channel bandwidth;

[0017] The transceiver module is configured to receive data frames under the second channel bandwidth, and perform BA feedback with the data frame sender under the second channel bandwidth after completing the data frame transmission.

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

[0019] Among them, when the above-mentioned communication device acts as a data frame sender, the above-mentioned processor is used to execute the communication method provided by the first aspect of the embodiment of this disclosure; when the above-mentioned communication device acts as a data frame receiver, the above-mentioned processor is used to execute the communication method provided by the second aspect of the embodiment of this disclosure.

[0020] In a sixth 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] On the seventh aspect, an embodiment of the present disclosure proposes a communication system, which includes a data frame sender and a data frame receiver; wherein the data frame sender is configured to execute the method described in the first aspect, and the data frame receiver is configured to execute the method described in the second aspect.

[0022] Based on the communication method, device and storage medium provided in the embodiments of the present disclosure, a negotiation method of a BA feedback mechanism, a data frame transmission method and a BA feedback method after completing the data frame transmission can be provided.

[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] FIG1a is a schematic diagram of a communication scenario shown in an embodiment of the present disclosure;

[0026] FIG1b is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0027] FIG2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure;

[0028] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure;

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

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

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

[0032] FIG7 is a schematic diagram of a structure of a communication device according to an embodiment of the present disclosure;

[0033] FIG8 is a second structural diagram of a communication device according to an embodiment of the present disclosure;

[0034] FIG9 is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure;

[0035] FIG10 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] The embodiments of the present disclosure provide a communication method, a device, and a storage medium.

[0037] In a first aspect, an embodiment of the present disclosure provides a communication method, which is applied to a data frame sender, and includes:

[0038] Negotiate with the data frame receiver under the first channel bandwidth a block acknowledgement (BA) feedback mechanism to be applied under the second channel bandwidth;

[0039] The data frame is sent in the second channel bandwidth, and after the data frame transmission is completed, BA feedback is performed with the data frame receiver in the second channel bandwidth.

[0040] In the above embodiment, the data frame sender can negotiate with the data frame receiver under the first channel bandwidth to apply the BA feedback mechanism under the second channel bandwidth, so that when the data frame sender switches to the second channel bandwidth to send data frames, the data frame sender and the data frame receiver can perform BA feedback under the second channel bandwidth, which is conducive to improving the BA feedback mechanism when sending data frames under different channel bandwidths and improving communication efficiency.

[0041] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned first channel bandwidth includes the channel bandwidth of the first channel, the above-mentioned second channel bandwidth includes at least one of the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregate channel, the above-mentioned first channel includes at least one main channel, and the above-mentioned aggregate channel is composed of the above-mentioned first channel and the above-mentioned secondary channel.

[0042] In the above embodiment, when the first channel bandwidth includes the channel bandwidth of at least one primary channel, and the second channel bandwidth includes at least one of the channel bandwidth of at least one primary channel, the channel bandwidth of a secondary channel, or the channel bandwidth of an aggregated channel, the data frame sender and the data frame receiver can negotiate on the primary channel a BA feedback mechanism applicable to the channel bandwidth of the primary channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel. Based on this, the data frame sender can implement BA feedback within the channel bandwidth of the data frame transmission under the channel bandwidth of the primary channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel, further improving the BA feedback mechanism when sending data frames under different channel bandwidths and improving communication efficiency.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the BA feedback mechanism negotiated with the data frame receiver under the first channel bandwidth for application under the second channel bandwidth includes:

[0044] Sending an add block acknowledgement (ADDBA) request frame under the first channel bandwidth, where the ADDBA request frame is used to request negotiation of a BA feedback mechanism applied to the second channel bandwidth;

[0045] An ADDBA response frame is received in the first channel bandwidth, where the ADDBA response frame is used to indicate establishment of a BA feedback mechanism applied to the second channel bandwidth.

[0046] In the above embodiment, the data frame sender and the data frame receiver can directly negotiate the BA feedback mechanism applied to the second channel bandwidth through the ADDBA request frame and the ADDBA response frame, which is conducive to improving the negotiation efficiency of the BA feedback mechanism.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the ADDBA request frame includes first identification information, where the first identification information is used to indicate that the data frame sender supports application of the BA feedback mechanism to the second channel bandwidth;

[0048] The above-mentioned ADDBA response frame includes second identification information, and the above-mentioned second identification information is used to indicate that the above-mentioned data frame receiver supports the above-mentioned BA feedback mechanism to be applied to the above-mentioned second channel bandwidth.

[0049] In the above embodiment, the data frame receiver can quickly determine that the data frame sender supports the BA feedback mechanism and can be applied to the second channel bandwidth through the first identification information in the ADDBA request frame, and the data frame sender can quickly determine that the BA feedback mechanism can be applied to the second channel bandwidth through the second identification information in the ADDBA response frame, which is conducive to saving signaling resources and improving communication efficiency.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes:

[0051] Sending a first radio frame, where the first radio frame includes first modulation and coding strategy (MCS) capability information, and the first radio frame indicates, through the first MCS capability information, that the data frame sender supports application of the BA feedback mechanism to the second channel bandwidth;

[0052] A second radio frame is received, where the second radio frame includes second MCS capability information, and the second radio frame indicates, through the second MCS capability information, that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0053] In the above embodiment, the data frame sender can also indicate that it supports the BA feedback mechanism applied to the second channel bandwidth through the first MCS capability information in the first radio frame, and the data frame receiver can also indicate that it supports the BA feedback mechanism applied to the second channel bandwidth through the second MCS capability information in the second radio frame. In this way, the data frame sender and the data frame receiver can inform both parties in advance that they support the BA feedback mechanism applied to the second channel bandwidth before negotiating the BA feedback mechanism, which is conducive to improving the negotiation efficiency of the BA feedback mechanism and improving communication efficiency.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned first wireless frame is an association request frame, a reassociation request frame or a probe request frame, and the above-mentioned second wireless frame is an association response frame, a reassociation response frame or a probe response frame; or, the above-mentioned second wireless frame is an association request frame, a reassociation request frame or a probe request frame, and the above-mentioned first wireless frame is an association response frame, a reassociation response frame or a probe response frame.

[0055] In the above embodiment, the data frame sender and the data frame receiver can use existing wireless frames to inform both parties in advance that the BA feedback mechanism can be applied to the second channel bandwidth before negotiating the BA feedback mechanism, which is beneficial to saving signaling resources while improving the negotiation efficiency of the BA feedback mechanism.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, when the first channel is busy and the secondary channel is idle, sending the data frame in the second channel bandwidth, and performing BA feedback with the data frame receiver in the second channel bandwidth after sending the data frame, includes:

[0057] Sending data frames within the channel bandwidth of the secondary channel;

[0058] After the data frame transmission is completed, BA feedback is performed with the data frame receiver under the channel bandwidth of the secondary channel.

[0059] In the above embodiment, the data frame sender can switch to the channel bandwidth of the secondary channel to send the data frame when the main channel is busy, and can perform BA feedback with the data frame receiver under the channel bandwidth of the secondary channel after completing the data frame transmission. This is conducive to completing the BA feedback mechanism of the data frame sender sending the data frame under the channel bandwidth of the secondary channel, and helps to improve the transmission quality of the data frame.

[0060] In conjunction with some embodiments of the first aspect, in some embodiments, when both the first channel and the secondary channel are idle, sending a data frame using the second channel bandwidth, and performing BA feedback with the data frame receiver using the second channel bandwidth after sending the data frame, includes:

[0061] Sending data frames under the channel bandwidth of the aggregate channel, or sending data frames under the channel bandwidth of the first channel and the channel bandwidth of the secondary channel simultaneously;

[0062] After the data frame transmission is completed, BA feedback is performed with the data frame receiver under the channel bandwidth of the aggregate channel.

[0063] In the above embodiment, when both the primary channel and the secondary channel are idle, the data frame sender can send the data frame in the channel bandwidth of the aggregated channel, or can send the data frame simultaneously in the channel bandwidth of the primary channel and the channel bandwidth of the secondary channel, and can perform BA feedback in the channel bandwidth of the aggregated channel after completing the data frame transmission. This is conducive to improving the BA feedback mechanism when the data frame sender uses the primary channel and the secondary channel to send data frames at the same time, and helps to improve the transmission quality of the data frame.

[0064] In a second aspect, an embodiment of the present disclosure provides a communication method, which is applied to a data frame receiver, and includes:

[0065] Negotiate with the data frame sender under the first channel bandwidth a BA feedback mechanism to be applied under the second channel bandwidth;

[0066] The data frame is received in the second channel bandwidth, and after completing the data frame transmission, BA feedback is performed with the data frame sender in the second channel bandwidth.

[0067] In the above embodiment, the data frame receiver can negotiate with the data frame sender under the first channel bandwidth to apply the BA feedback mechanism under the second channel bandwidth, so that when the data frame sender switches to the second channel bandwidth to send data frames, the data frame receiver and the data frame receiver can perform BA feedback under the second channel bandwidth, which is conducive to improving the BA feedback mechanism when sending data frames under different channel bandwidths and improving communication efficiency.

[0068] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned first channel bandwidth includes the channel bandwidth of the first channel, the above-mentioned second channel bandwidth includes at least one of the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregate channel, the above-mentioned first channel includes at least one main channel, and the above-mentioned aggregate channel is composed of the above-mentioned first channel and the above-mentioned secondary channel.

[0069] In the above embodiment, when the first channel bandwidth includes the channel bandwidth of at least one primary channel, and the second channel bandwidth includes at least one of the channel bandwidth of at least one primary channel, the channel bandwidth of a secondary channel, or the channel bandwidth of an aggregated channel, the data frame sender and the data frame receiver can negotiate on the primary channel a BA feedback mechanism applicable to the channel bandwidth of the primary channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel. Based on this, the data frame sender can implement BA feedback within the channel bandwidth of the data frame transmission under the channel bandwidth of the primary channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel, further improving the BA feedback mechanism when sending data frames under different channel bandwidths and improving communication efficiency.

[0070] In conjunction with some embodiments of the second aspect, in some embodiments, the BA feedback mechanism negotiated with the data frame sender under the first channel bandwidth for application under the second channel bandwidth includes:

[0071] receiving an ADDBA request frame at the first channel bandwidth, where the ADDBA request frame is used to request negotiation of a BA feedback mechanism applied to the second channel bandwidth;

[0072] An ADDBA response frame is sent under the first channel bandwidth, where the ADDBA response frame is used to indicate establishment of a BA feedback mechanism applied to the second channel bandwidth.

[0073] In the above embodiment, the data frame sender and the data frame receiver can directly negotiate the BA feedback mechanism applied to the second channel bandwidth through the ADDBA request frame and the ADDBA response frame, which is conducive to improving the negotiation efficiency of the BA feedback mechanism.

[0074] In conjunction with some embodiments of the second aspect, in some embodiments, the ADDBA request frame includes first identification information, where the first identification information is used to indicate that the data frame sender supports application of the BA feedback mechanism to the second channel bandwidth;

[0075] The above-mentioned ADDBA response frame includes second identification information, and the above-mentioned second identification information is used to indicate that the above-mentioned data frame receiver supports the above-mentioned BA feedback mechanism to be applied to the above-mentioned second channel bandwidth.

[0076] In the above embodiment, the data frame receiver can quickly determine that the data frame sender supports the BA feedback mechanism and can be applied to the second channel bandwidth through the first identification information in the ADDBA request frame, and the data frame sender can quickly determine that the BA feedback mechanism can be applied to the second channel bandwidth through the second identification information in the ADDBA response frame, which is conducive to saving signaling resources and improving communication efficiency.

[0077] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes:

[0078] receiving a first radio frame, the first radio frame including first MCS capability information, the first radio frame indicating, through the first MCS capability information, that the data frame sender supports application of the BA feedback mechanism to the second channel bandwidth;

[0079] A second radio frame is received, where the second radio frame includes second MCS capability information, and the second radio frame indicates, through the second MCS capability information, that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0080] In the above embodiment, the data frame sender can also indicate that it supports the BA feedback mechanism applied to the second channel bandwidth through the first MCS capability information in the first radio frame, and the data frame receiver can also indicate that it supports the BA feedback mechanism applied to the second channel bandwidth through the second MCS capability information in the second radio frame. In this way, the data frame sender and the data frame receiver can inform both parties in advance that they support the BA feedback mechanism applied to the second channel bandwidth before negotiating the BA feedback mechanism, which is conducive to improving the negotiation efficiency of the BA feedback mechanism and improving communication efficiency.

[0081] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned first wireless frame is an association request frame, a reassociation request frame or a probe request frame, and the above-mentioned second wireless frame is an association response frame, a reassociation response frame or a probe response frame; or, the above-mentioned second wireless frame is an association request frame, a reassociation request frame or a probe request frame, and the above-mentioned first wireless frame is an association response frame, a reassociation response frame or a probe response frame.

[0082] In the above embodiment, the data frame sender and the data frame receiver can use existing wireless frames to inform both parties in advance that the BA feedback mechanism can be applied to the second channel bandwidth before negotiating the BA feedback mechanism, which is beneficial to saving signaling resources while improving the negotiation efficiency of the BA feedback mechanism.

[0083] In conjunction with some embodiments of the second aspect, in some embodiments, when the first channel is busy and the secondary channel is idle, receiving the data frame at the second channel bandwidth, and performing BA feedback with the data frame receiver at the second channel bandwidth after completing the data frame transmission, includes:

[0084] receiving data frames at the channel bandwidth of the secondary channel;

[0085] After the data frame transmission is completed, BA feedback is performed with the data frame sender under the channel bandwidth of the secondary channel.

[0086] In the above embodiment, when the data frame sender can switch to the channel bandwidth of the secondary channel bandwidth to send the data frame when the main channel is busy, the data frame receiver can perform BA feedback with the data frame sender under the channel bandwidth of the secondary channel after completing the data frame transmission, which is conducive to completing the BA feedback mechanism of the data frame sender sending the data frame under the channel bandwidth of the secondary channel, and helps to improve the transmission quality of the data frame.

[0087] In conjunction with some embodiments of the second aspect, in some embodiments, when both the first channel and the secondary channel are idle, receiving the data frame at the second channel bandwidth, and performing BA feedback with the data frame sender at the second channel bandwidth after completing the data frame transmission, includes:

[0088] Receiving data frames in the channel bandwidth of the aggregate channel, or simultaneously receiving data frames in the channel bandwidth of the first channel and the channel bandwidth of the secondary channel;

[0089] After the data frame transmission is completed, BA feedback is performed with the data frame sender under the channel bandwidth of the aggregate channel.

[0090] In the above embodiment, when both the primary channel and the secondary channel are idle, the data frame sender can send the data frame using the channel bandwidth of the aggregated channel, or can send the data frame using both the channel bandwidth of the primary channel and the channel bandwidth of the secondary channel simultaneously. After completing data frame transmission, the data frame receiver can provide BA feedback using the channel bandwidth of the aggregated channel. This helps improve the BA feedback mechanism when the data frame sender uses both the primary channel and the secondary channel to send data frames, thereby enhancing data frame transmission quality.

[0091] In a third aspect, an embodiment of the present disclosure provides a communication device, including:

[0092] A transceiver module is configured to negotiate with a data frame receiver under a first channel bandwidth a block acknowledgement (BA) feedback mechanism applied under a second channel bandwidth;

[0093] The transceiver module is configured to send data frames under the second channel bandwidth, and perform BA feedback with the data frame receiver under the second channel bandwidth after completing the data frame transmission.

[0094] In a fourth aspect, an embodiment of the present disclosure provides a communication device, including:

[0095] A transceiver module, configured to negotiate with a data frame sender under a first channel bandwidth a BA feedback mechanism applied under a second channel bandwidth;

[0096] The transceiver module is configured to receive data frames under the second channel bandwidth, and perform BA feedback with the data frame sender under the second channel bandwidth after completing the data frame transmission.

[0097] In a fifth aspect, an embodiment of the present disclosure provides a communication device, comprising one or more processors;

[0098] In which, when the above-mentioned communication device acts as a data frame sender, the above-mentioned processor executes the communication method provided in the first aspect and the optional implementation method of the first aspect, or when it acts as a data frame receiver, the above-mentioned processor executes the communication method provided in the second aspect and the optional implementation method of the second aspect.

[0099] In a sixth 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.

[0100] In a seventh 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.

[0101] In an eighth 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.

[0102] In a ninth 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.

[0103] In the tenth aspect, an embodiment of the present disclosure proposes a communication system, which includes a data frame sender and a data frame receiver; wherein the data frame sender is configured to execute the method described in the first aspect and the optional implementation method of the first aspect, and the data frame receiver is configured to execute the method described in the second aspect and the optional implementation method of the second aspect.

[0104] It is understandable that the above-mentioned data frame sender, data frame receiver, communication system, communication device, storage medium, program product, computer program, chip or chip system are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0111] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0112] 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 above is also applicable when there are more branches such as A, B, and C.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0119] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0120] 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.

[0121] The continuous development of Ultra High Reliability (UHR) technology is placing higher demands on system throughput and transmission latency. To improve system throughput and reduce transmission latency, when the primary channel is busy, communication devices can switch to a secondary channel for communication. Alternatively, when both the primary and secondary channels are idle, communication devices can aggregate the primary and secondary channels for communication, thereby improving system throughput and reducing transmission latency.

[0122] As shown in Figure 1a, for a station (STA), if the STA determines that the primary channel (20MHz bandwidth) is busy, it can send data frames on a secondary channel within an available transmission opportunity (TXOP). If the STA determines that the primary channel is busy based on the basic network allocation vector (NAV), it can transmit data frames on a secondary channel with a lower frequency than the primary channel bandwidth within the available TXOP. If the STA subsequently determines that the primary channel is idle again, and if the secondary channel is also idle, it can transmit data frames on the aggregated channel bandwidth of the primary and secondary channels within the next TXOP.

[0123] Among them, there is a Block Acknowledgment (BA) feedback mechanism in the communication process of the communication device to further improve the communication quality. However, the existing BA feedback mechanism is not fully applicable to the above communication scenarios. For example, under the existing mechanism, the communication device negotiates the BA mechanism through the primary channel and performs BA feedback on the primary channel. If the channel bandwidth of the first channel is 20MHz, and the channel bandwidth of the aggregated channel composed of the primary channel and the secondary channel is 40MHz, the communication device needs to perform BA feedback under the 40MHz bandwidth, but according to the existing mechanism, it can only be performed under the 20MHz main channel.

[0124] 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.

[0125] FIG1 b is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0126] As shown in FIG1 , a communication system 100 includes a data frame sender 101 and a data frame receiver 102 .

[0127] The data frame sender 101 and the data frame receiver 102 may be any one of an independent AP or an AP subordinate to an AP MLD, and the other may be an independent STA or an STA subordinate to a Non-AP MLD, which is not limited here.

[0128] In some embodiments, the data frame sender 101 and the data frame receiver 102 may be terminal devices or network devices with Wi-Fi chips.

[0129] 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.

[0130] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1b, or a portion thereof, but are not limited thereto. The entities shown in Figure 1b are illustrative only. The communication system may include all or a portion of the entities shown in Figure 1b, or may include other entities outside of Figure 1b. The number and form of the entities may be 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.

[0131] 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.

[0132] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. The communication method shown in FIG2 includes:

[0133] S21. A data frame sender sends a first radio frame, where the first radio frame is used to indicate that the data frame sender supports application of a BA feedback mechanism to a second channel bandwidth.

[0134] In some embodiments, the data frame sender may send a first radio frame before negotiating a BA feedback mechanism with the data frame receiver, so as to indicate through the first radio frame that the data frame sender supports application of the BA feedback mechanism to the second channel bandwidth.

[0135] For example, the data sender may send a first radio frame before establishing an initial association with the data frame receiver or during the process of establishing the initial association, so as to indicate through the first radio frame that the data frame sender supports the application of the BA feedback mechanism to the second channel bandwidth.

[0136] When the data frame sender is a STA, the first wireless frame can be an association request frame, a reassociation request frame, or a probe request frame. When the data frame sender is an AP, the first wireless frame can be an association response frame, a reassociation response frame, or a probe response frame.

[0137] In some embodiments, the second channel bandwidth includes at least one of a channel bandwidth of the first channel, a channel bandwidth of a secondary channel, or a channel bandwidth of an aggregated channel.

[0138] The first channel includes at least one main channel, and the aggregate channel is composed of the first channel and the secondary channel.

[0139] As an example, the data frame sender sends a first radio frame, and the first radio frame indicates that the data frame sender supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel.

[0140] As an example, the data frame sender sends a first radio frame, and the first radio frame indicates that the data frame sender supports the BA feedback mechanism applied to the channel bandwidth of the aggregated channel.

[0141] The data frame sender may send the first wireless frame through the first channel bandwidth, where the first channel bandwidth includes the channel bandwidth of the first channel, that is, the first channel bandwidth includes the channel bandwidth of at least one main channel.

[0142] In which, during the process of establishing the initial association or after establishing the initial association, such as before sending the first wireless frame, the data frame sender and the data frame receiver negotiate the secondary channel communication mechanism with the data frame receiver, that is, negotiate with the data frame receiver that when the first channel is busy, it can switch to the channel bandwidth of the secondary channel for data frame transmission.

[0143] For example, when the channel bandwidth of the first channel is 20 MHz, the data frame sender and the data frame receiver can negotiate to transmit data frames under the channel bandwidth of multiple 20 MHz secondary channels or under the channel bandwidth of a 40 MHz secondary channel based on the channel bandwidth supported by both parties for data frame transmission (such as 40 MHz or 20 MHz + 40 MHz).

[0144] Based on this, the data frame sender and the data frame receiver can pre-determine the channel bandwidth of the secondary channel supported by both parties for data frame transmission before negotiating the BA feedback mechanism, so that the data frame sender and the data frame receiver can negotiate the BA feedback mechanism based on the channel bandwidth of the secondary channel pre-negotiated by both parties and the channel bandwidth of the first channel, and determine the second channel bandwidth used to support the BA feedback mechanism.

[0145] For another example, the channel bandwidth of the first channel is 20 MHz. Before negotiating the BA feedback mechanism, the data frame sender and the data frame receiver agree that when the first channel is busy, they can switch to a secondary channel with a channel bandwidth of 20 MHz for data frame transmission. In this case, the data frame sender can indicate through the first radio frame that the data frame sender supports the BA feedback mechanism, which can be applied to the channel bandwidth of the first channel (20 MHz), the channel bandwidth of the secondary channel (20 MHz), or the channel bandwidth of the aggregate channel composed of the first channel and the secondary channel (20 MHz + 20 MHz).

[0146] In some embodiments, the first radio frame includes first bandwidth information, and the first radio frame indicates to the data frame sender through the first bandwidth information that it supports the application of the BA feedback mechanism to the second channel bandwidth.

[0147] The first bandwidth information is used to identify the channel bandwidth supported by the data frame sender.

[0148] That is, the first wireless frame indicates the channel bandwidth supported by the data frame sender through the first bandwidth information, thereby indirectly indicating that the data frame sender supports the BA feedback mechanism applied to the channel bandwidth supported by the data frame sender, that is, indirectly indicating that the channel bandwidth supported by the data frame sender is the second channel bandwidth applied by the data frame sender supporting the BA feedback mechanism.

[0149] Optionally, the first bandwidth information may be first modulation and coding scheme (MCS) capability information, and the first wireless frame indirectly indicates the channel bandwidth supported by the data frame sender through the first MCS capability information, thereby indirectly indicating that the channel bandwidth supported by the data frame sender is the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0150] In other words, after the data frame sender sends the first wireless frame, the data frame receiver can determine the channel bandwidth supported by the data frame sender through the first MCS capability information, and then determine that the channel bandwidth supported by the data frame sender is the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0151] As an example, the first MCS capability information may be as follows:

[0152] The first MCS capability information is used to indicate the maximum number of spatial streams (NSS) when the data sender sends (Transmit, Tx) or receives (Receive, Rx) data at the data frame transmission rate corresponding to different Extreme High Throughput (EHT)-MCS index values ​​(such as EHT-MCS 0-9, EHT-MCS 10-11, EHT-MCS 12-13).

[0153] After receiving the first MCS capability information, the data frame receiver can determine the channel bandwidth supported by the data frame sender based on the first MCS capability information, thereby determining the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0154] Optionally, the first bandwidth information may be a first bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The first wireless frame may indicate that the channel bandwidth corresponding to the first bandwidth index value is a channel bandwidth supported by the data frame sender, that is, the channel bandwidth supported by the data frame sender is a second channel bandwidth used by the data frame sender to support the BA feedback mechanism.

[0155] Optionally, the first bandwidth information can indicate different channel bandwidths through different identification values, and the first wireless frame can indicate through the identification value that the corresponding channel bandwidth is the channel bandwidth supported by the data frame sender, that is, indicating that the channel bandwidth supported by the data frame sender (the channel bandwidth corresponding to the identification value) is the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0156] In some embodiments, the channel bandwidth of the secondary channel may be smaller than, equal to, or larger than the channel bandwidth of the first channel. For example, when the channel bandwidth of the first channel is 20 MHz, the channel bandwidth of the secondary channel may be 20 MHz or 40 MHz.

[0157] In some embodiments, the first wireless frame (for example, a probe request frame or a reassociation request frame in the process of establishing an initial association) may include a first ultra-high reliability capability (UHR Capabilities) information element, and the first UHR Capabilities information element is used to indicate that the data frame sender supports the secondary channel access mechanism, that is, it is used to indicate that the data frame sender supports switching to the channel bandwidth of the secondary channel when the first channel is busy for data frame transmission.

[0158] The first UHR Capabilities information element can indicate that the data frame sender supports the secondary channel access mechanism, indirectly indicating that the data frame sender supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel, that is, indirectly indicating that the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel is the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0159] S22. The data frame receiver sends a second radio frame, where the second radio frame is used to indicate that the data frame receiver supports application of the BA feedback mechanism to the second channel bandwidth.

[0160] In some embodiments, the data frame receiver may send a second radio frame before negotiating a BA feedback mechanism with the data frame sender, so as to indicate through the second radio frame that the data frame receiver supports application of the BA feedback mechanism to the second channel bandwidth.

[0161] For example, the data frame receiver may send a second radio frame before establishing an initial association with the data frame sender or during the process of establishing the initial association, so as to indicate through the second radio frame that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0162] When the data frame receiver is a STA, the second wireless frame can be an association request frame, a reassociation request frame, or a probe request frame. When the data frame receiver is an AP, the first wireless frame can be an association response frame, a reassociation response frame, or a probe response frame.

[0163] In some embodiments, the second channel bandwidth includes at least one of a channel bandwidth of the first channel, a channel bandwidth of a secondary channel, or a channel bandwidth of an aggregated channel.

[0164] The first channel includes at least one main channel, and the aggregate channel is composed of the first channel and the secondary channel.

[0165] As an example, the data frame receiver sends a second radio frame, and the second radio frame indicates to the data frame receiver that it supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel.

[0166] As an example, the data frame receiver sends a second radio frame, and indicates through the second radio frame that the data frame receiver supports the BA feedback mechanism applied to the channel bandwidth of the aggregated channel.

[0167] The data frame receiver may send the second wireless frame through the first channel bandwidth, where the first channel bandwidth includes the channel bandwidth of the first channel, that is, the first channel bandwidth includes at least one channel bandwidth of the first channel.

[0168] In some embodiments, the second radio frame includes second bandwidth information, and the second radio frame indicates to the data frame receiver through the second bandwidth information that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0169] The second bandwidth information is used to identify the channel bandwidth supported by the data frame receiver.

[0170] That is, the second wireless frame indicates the channel bandwidth supported by the data frame receiver through the second bandwidth information, thereby indirectly indicating that the data frame receiver supports the BA feedback mechanism applied to the channel bandwidth supported by the data frame receiver, that is, indirectly indicating that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver supporting the BA feedback mechanism.

[0171] Optionally, the second bandwidth information may be second MCS capability information, and the second wireless frame indirectly indicates the channel bandwidth supported by the data frame receiver through the second MCS capability information, thereby indirectly indicating that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0172] In other words, after the data frame receiver sends the second wireless frame, the data frame sender can determine the channel bandwidth supported by the data frame receiver through the second MCS capability information, and then determine that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0173] Optionally, the second bandwidth information may be a second bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The second radio frame may indicate that the channel bandwidth corresponding to the second bandwidth index value is a channel bandwidth supported by the data frame receiver, that is, indicating that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0174] Optionally, the second bandwidth information can indicate different channel bandwidths through different identification values, and the second wireless frame can indicate through the identification value that the corresponding channel bandwidth is the channel bandwidth supported by the data frame receiver, that is, indicating that the channel bandwidth supported by the data frame receiver (the channel bandwidth corresponding to the identification value) is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0175] In some embodiments, the second wireless frame (for example, a probe response frame or a reassociation response frame in the process of establishing an initial association) may include a second UHR Capabilities information element, and the second UHR Capabilities information element is used to indicate that the data frame receiver supports the secondary channel access mechanism, that is, it is used to indicate that the data frame receiver supports switching to the channel bandwidth of the secondary channel when the first channel is busy for data frame transmission.

[0176] The second UHR Capabilities information element can indicate that the data frame receiver supports the secondary channel access mechanism, indirectly indicating that the data frame receiver supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel, that is, indirectly indicating that the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0177] S23, the data frame sender sends an ADDBA request frame in the first channel bandwidth, where the ADDBA request frame is used to request negotiation of a BA feedback mechanism applied to the second channel bandwidth.

[0178] Before negotiating the BA feedback mechanism, the data frame sender and the data frame receiver may pre-negotiate the channel bandwidth of the secondary channel supported by both parties for data frame transmission, so that the data frame sender and the data frame receiver can negotiate the BA feedback mechanism based on the channel bandwidth of the secondary channel pre-negotiated by both parties and the channel bandwidth of the first channel, and determine the second channel bandwidth used to support the BA feedback mechanism.

[0179] For example, the channel bandwidth of the first channel is 20MHz. Before negotiating the BA feedback mechanism, the data frame sender and the data frame receiver agree that when the first channel is busy, they can switch to a secondary channel with a channel bandwidth of 40MHz for data frame transmission. In this case, the data frame receiver can indicate to the data frame sender through a second radio frame that it supports the BA feedback mechanism, which can be applied to the channel bandwidth of the first channel (20MHz), the channel bandwidth of the secondary channel (40MHz), or the channel bandwidth of the aggregate channel composed of the first channel and the secondary channel (20MHz+40MHz).

[0180] In some embodiments, the data frame sender may send an Add Block Acknowledgment (ADDBA) request frame under the first channel bandwidth, where the ADDBA request frame is used to request negotiation of a BA feedback mechanism applied to the second channel bandwidth.

[0181] Optionally, the ADDBA request frame includes first identification information, and the first identification information is used to indicate that the data frame sender supports the application of the BA feedback mechanism to the second channel bandwidth.

[0182] As an example, the data frame sender sends an ADDBA request frame under the channel bandwidth of the first channel. The ADDBA request frame includes first identification information. The ADDBA request frame indicates through the first identification information that the data frame sender supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregate channel.

[0183] Optionally, the first identification information may indicate, through different identification values, that the data frame sender supports the application of the BA feedback mechanism to at least one of the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel.

[0184] Optionally, the first identification information may identify different bandwidth information through different identification values, so as to indirectly indicate that the data frame sender supports the second channel bandwidth applied by the BA feedback mechanism.

[0185] Optionally, the first identification information may be a third bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The ADDBA request frame may indicate that the channel bandwidth corresponding to the third bandwidth index value is a channel bandwidth supported by the data frame sender, i.e., indicate that the channel bandwidth supported by the data frame sender is the second channel bandwidth used by the data frame sender to support the BA feedback mechanism.

[0186] S24. The data frame receiver sends an ADDBA response frame in the first channel bandwidth. The ADDBA response frame is used to indicate the establishment of a BA feedback mechanism applied to the second channel bandwidth.

[0187] In some embodiments, the data frame receiver may send an ADDBA response frame in the first channel bandwidth, where the ADDBA response frame is used to indicate the establishment of a BA feedback mechanism applied to the second channel bandwidth.

[0188] In some embodiments, the ADDBA response frame includes second identification information, where the second identification information is used to indicate that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0189] As an example, the data frame receiver sends an ADDBA response frame under the channel bandwidth of the first channel, and the ADDBA response frame includes second identification information. The ADDBA response frame indicates through the second identification information that the data frame receiver supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregate channel.

[0190] Optionally, the second identification information may indicate to the data frame receiver through different identification values ​​that the BA feedback mechanism is supported for application to at least one of the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel.

[0191] Optionally, the second identification information may identify different bandwidth information through different identification values, so as to indirectly indicate that the data frame receiver supports the second channel bandwidth applied by the BA feedback mechanism.

[0192] Optionally, the second identification information may be a fourth bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The ADDBA response frame may indicate that the channel bandwidth corresponding to the fourth bandwidth index value is a channel bandwidth supported by the data frame receiver, i.e., indicate that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver's support for the BA feedback mechanism.

[0193] After receiving the ADDBA request frame, the data frame receiver may send an ACK frame to the data frame sender to indicate receipt of the ADDBA request frame.

[0194] After receiving the ADDBA response frame, the data frame sender may send an ACK frame to the data frame receiver to indicate receipt of the ADDBA response frame.

[0195] S25 , the data frame sender and the data frame receiver transmit the data frame in the second channel bandwidth, and perform BA feedback in the second channel bandwidth after completing the data frame transmission.

[0196] In some embodiments, after the data frame sender and the data frame receiver complete the negotiation of the BA feedback mechanism applied to the second channel bandwidth under the first channel bandwidth, the data frame sender may send data frames to the data frame receiver under the second channel bandwidth, and the data frame receiver may receive the data frames sent by the data frame sender under the second channel bandwidth.

[0197] As an example, the data frame sender may send at least one Quality of Service (QoS) data frame to the data frame receiver under the second channel bandwidth, and the data frame receiver may receive each QoS data frame sent by the data frame sender under the second channel bandwidth.

[0198] In some embodiments, when a data frame sender sends data frames using the channel bandwidth of a first channel, if the first channel is busy and not all data frames have been sent, the data frame sender may sense the channel status of a secondary channel. When the first channel is busy and the secondary channel is idle, the data frame sender may continue to send data frames to the data frame receiver using the channel bandwidth of the secondary channel. In this case, the data frame receiver may receive the data frames sent by the data frame sender using the channel bandwidth of the secondary channel.

[0199] After sending all data frames, the data frame sender can send a BA request frame to the data frame receiver within the channel bandwidth of the secondary channel. The BA request frame is used to request the data frame receiver to provide BA feedback. After receiving all data frames, if the data frame receiver receives the BA request frame within the channel bandwidth of the secondary channel, it will send a BA frame to the data frame sender within the channel bandwidth of the secondary channel to indicate that it has received all data frames.

[0200] In some embodiments, after obtaining a TXOP on a first channel, a data frame sender sends data frames within the TXOP using the channel bandwidth of the first channel if the first channel is idle. Simultaneously, if a secondary channel is idle, the data frames are sent simultaneously using the channel bandwidths of the first channel and the secondary channel, or using the channel bandwidth of an aggregated channel. In this case, a data frame receiver can receive the data frames sent by the data frame sender using the corresponding channel bandwidths.

[0201] After sending all data frames, the data frame sender can send a BA request frame to the data frame receiver within the channel bandwidth of the aggregated channel. The BA request frame is used to request the data frame receiver to provide BA feedback. After receiving all data frames, if the data frame receiver receives the BA request frame within the channel bandwidth of the aggregated channel, it will send a BA frame to the data frame sender within the channel bandwidth of the aggregated channel to indicate that it has received all data frames.

[0202] In some embodiments, when both the first channel and the secondary channel are idle, the data frame sender may send the data frame using the channel bandwidth of the first channel, or may send the data frame using the channel bandwidth of the first channel and the channel bandwidth of the secondary channel, or may send the data frame using the channel bandwidth of the aggregated channel. After sending the data frame, the data frame sender may send a BA request frame using the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel. In this case, the data frame receiver may send a BA frame to the data frame sender using the channel bandwidth at which the BA request frame was received.

[0203] 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 may be implemented as an independent embodiment, and any combination of steps S21-S25 may be implemented as an independent embodiment, but the present disclosure is not limited thereto. As an example, steps S23-S24 may be implemented as an independent embodiment.

[0204] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , the method is executed by a data frame sender, and the method includes:

[0205] S31 , negotiate with a data frame receiver in the first channel bandwidth about a BA feedback mechanism to be applied in the second channel bandwidth.

[0206] In some embodiments, the data frame sender may send an ADDBA request frame in the first channel bandwidth, where the ADDBA request frame is used to request negotiation of a BA feedback mechanism applied to the second channel bandwidth.

[0207] In some embodiments, the ADDBA request frame includes first identification information, where the first identification information is used to indicate that the data frame sender supports the application of the BA feedback mechanism to the second channel bandwidth.

[0208] As an example, the data frame sender sends an ADDBA request frame under the channel bandwidth of the first channel. The ADDBA request frame includes first identification information. The ADDBA request frame indicates through the first identification information that the data frame sender supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregate channel.

[0209] Optionally, the first identification information may indicate, through different identification values, that the data frame sender supports the application of the BA feedback mechanism to at least one of the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel.

[0210] Optionally, the first identification information may identify different bandwidth information through different identification values, so as to indirectly indicate that the data frame sender supports the second channel bandwidth applied by the BA feedback mechanism.

[0211] Optionally, the first identification information may be a third bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The ADDBA request frame may indicate that the channel bandwidth corresponding to the third bandwidth index value is a channel bandwidth supported by the data frame sender, i.e., indicate that the channel bandwidth supported by the data frame sender is the second channel bandwidth used by the data frame sender to support the BA feedback mechanism.

[0212] In some embodiments, after the data frame sender sends the ADDBA request frame, it may receive an ADDBA response frame in the first channel bandwidth, where the ADDBA response frame is used to indicate the establishment of a BA feedback mechanism applied to the second channel bandwidth.

[0213] In some embodiments, the ADDBA response frame includes second identification information, where the second identification information is used to indicate that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0214] As an example, the data frame sender receives an ADDBA response frame under the channel bandwidth of the first channel, and the ADDBA response frame includes second identification information. The ADDBA response frame indicates through the second identification information that the data frame receiver supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregate channel.

[0215] Optionally, the second identification information may indicate to the data frame receiver through different identification values ​​that the BA feedback mechanism is supported for application to at least one of the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel.

[0216] Optionally, the second identification information may identify different bandwidth information through different identification values, so as to indirectly indicate that the data frame receiver supports the second channel bandwidth applied by the BA feedback mechanism.

[0217] Optionally, the second identification information may be a fourth bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The ADDBA response frame may indicate that the channel bandwidth corresponding to the fourth bandwidth index value is a channel bandwidth supported by the data frame receiver, i.e., indicate that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver's support for the BA feedback mechanism.

[0218] After the data frame sender sends the ADDBA request frame, it can receive an ACK frame sent by the data frame receiver to indicate that the ADDBA request frame has been received.

[0219] After receiving the ADDBA response frame, the data frame sender may send an ACK frame to the data frame receiver to indicate receipt of the ADDBA response frame.

[0220] S32: Send a data frame in the second channel bandwidth, and perform BA feedback with the data frame receiver in the second channel bandwidth after completing the data frame transmission.

[0221] In some embodiments, after the data frame sender and the data frame receiver complete the negotiation of the BA feedback mechanism applied to the second channel bandwidth under the first channel bandwidth, the data frame sender may send data frames to the data frame receiver under the second channel bandwidth so that the data frame receiver receives the data frames sent by the data frame sender under the second channel bandwidth.

[0222] As an example, the data frame sender may send at least one QoS data frame to the data frame receiver in the second channel bandwidth, so that the data frame receiver receives each QoS data frame sent by the data frame sender in the second channel bandwidth.

[0223] In some embodiments, when a data frame sender sends data frames using the channel bandwidth of a first channel, if the first channel is busy and not all data frames have been sent, the data frame sender may sense the channel status of a secondary channel. When the first channel is busy and the secondary channel is idle, the data frame sender may continue to send data frames to the data frame receiver using the channel bandwidth of the secondary channel, so that the data frame receiver receives the data frames sent by the data frame sender using the channel bandwidth of the secondary channel.

[0224] After sending all data frames, the data frame sender can send a BA request frame to the data frame receiver within the channel bandwidth of the secondary channel. The BA request frame is used to request BA feedback from the data frame receiver. Furthermore, the data frame sender can receive BA frames sent by the data frame receiver within the channel bandwidth of the secondary channel. In this case, the BA frame is sent by the data frame receiver to the data frame sender within the channel bandwidth of the secondary channel after receiving the BA request frame after receiving all data frames within the channel bandwidth of the secondary channel.

[0225] In some embodiments, after a data frame sender obtains a TXOP on a first channel, it sends data frames within the TXOP using the channel bandwidth of the first channel when the first channel is idle. Simultaneously, when a secondary channel is idle, the data frame sender sends data frames simultaneously using the channel bandwidth of the first channel and the channel bandwidth of the secondary channel, or sends data frames using the channel bandwidth of an aggregated channel, so that a data frame receiver receives the data frames sent by the data frame sender using the corresponding channel bandwidth.

[0226] After sending all data frames, the data frame sender can send a BA request frame to the data frame receiver within the channel bandwidth of the aggregated channel. The BA request frame is used to request BA feedback from the data frame receiver. Furthermore, the data frame sender can receive BA frames sent by the data frame receiver within the channel bandwidth of the aggregated channel. In this case, the BA frame is sent by the data frame receiver to the data frame sender within the channel bandwidth of the aggregated channel after receiving the BA request frame after receiving all data frames within the channel bandwidth of the aggregated channel.

[0227] In some embodiments, when both the first channel and the secondary channel are idle, the data frame sender may send the data frame using the channel bandwidth of the first channel, or may send the data frame using the channel bandwidth of the first channel and the channel bandwidth of the secondary channel, or may send the data frame using the channel bandwidth of the aggregated channel. After sending the data frame, the data frame sender may send a BA request frame using the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel. In this case, the data frame receiver may receive the BA frame sent by the data frame sender using the channel bandwidth used to send the BA request frame.

[0228] 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 S31 and S32 may be implemented as an independent embodiment, and steps S31 and S32 may be implemented as independent embodiments, but are not limited thereto.

[0229] FIG4 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 data frame sender, and the method includes:

[0230] S41 , sending a first radio frame, where the first radio frame is used to indicate that a data frame sender supports application of a BA feedback mechanism to a second channel bandwidth.

[0231] In some embodiments, the data frame sender may send a first radio frame before negotiating a BA feedback mechanism with the data frame receiver, so as to indicate through the first radio frame that the data frame sender supports application of the BA feedback mechanism to the second channel bandwidth.

[0232] For example, the data sender may send a first radio frame before establishing an initial association with the data frame receiver or during the process of establishing the initial association, so as to indicate through the first radio frame that the data frame sender supports the application of the BA feedback mechanism to the second channel bandwidth.

[0233] When the data frame sender is a STA, the first wireless frame can be an association request frame, a reassociation request frame, or a probe request frame. When the data frame sender is an AP, the first wireless frame can be an association response frame, a reassociation response frame, or a probe response frame.

[0234] In some embodiments, the second channel bandwidth includes at least one of a channel bandwidth of the first channel, a channel bandwidth of a secondary channel, or a channel bandwidth of an aggregated channel.

[0235] The first channel includes at least one main channel, and the aggregate channel is composed of the first channel and the secondary channel.

[0236] In some embodiments, the first radio frame includes first bandwidth information, and the first radio frame indicates to the data frame sender through the first bandwidth information that it supports the application of the BA feedback mechanism to the second channel bandwidth.

[0237] The first bandwidth information is used to identify the channel bandwidth supported by the data frame sender.

[0238] Optionally, the first bandwidth information may be first modulation and coding scheme (MCS) capability information, and the first wireless frame indirectly indicates the channel bandwidth supported by the data frame sender through the first MCS capability information, thereby indirectly indicating that the channel bandwidth supported by the data frame sender is the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0239] Optionally, the first bandwidth information may be a first bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The first wireless frame may indicate that the channel bandwidth corresponding to the first bandwidth index value is a channel bandwidth supported by the data frame sender, that is, the channel bandwidth supported by the data frame sender is a second channel bandwidth used by the data frame sender to support the BA feedback mechanism.

[0240] Optionally, the first bandwidth information can indicate different channel bandwidths through different identification values, and the first wireless frame can indicate through the identification value that the corresponding channel bandwidth is the channel bandwidth supported by the data frame sender, that is, indicating that the channel bandwidth supported by the data frame sender (the channel bandwidth corresponding to the identification value) is the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0241] In some embodiments, the channel bandwidth of the secondary channel may be smaller than, equal to, or larger than the channel bandwidth of the first channel. For example, when the channel bandwidth of the first channel is 20 MHz, the channel bandwidth of the secondary channel may be 20 MHz or 40 MHz.

[0242] In some embodiments, the first wireless frame (for example, a probe request frame or a reassociation request frame in the process of establishing an initial association) may include a first UHR Capabilities information element, and the first UHR Capabilities information element is used to indicate that the data frame sender supports the secondary channel access mechanism, that is, it is used to indicate that the data frame sender supports switching to the channel bandwidth of the secondary channel when the first channel is busy for data frame transmission.

[0243] The first UHR Capabilities information element can indicate that the data frame sender supports the secondary channel access mechanism, indirectly indicating that the data frame sender supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel, that is, indirectly indicating that the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel is the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0244] S42: Receive a second radio frame, where the second radio frame is used to indicate that the data frame receiver supports application of the BA feedback mechanism to the second channel bandwidth.

[0245] In some embodiments, the data frame sender may receive a second radio frame sent by the data frame receiver before negotiating the BA feedback mechanism with the data frame sender, and the data frame receiver indicates through the second radio frame that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0246] For example, the data frame sender may receive a second radio frame before establishing an initial association with the data frame sender or during the process of establishing an initial association, and determine through the second radio frame that the data frame receiver supports the BA feedback mechanism applied to the second channel bandwidth.

[0247] When the data frame receiver is a STA, the second wireless frame can be an association request frame, a reassociation request frame, or a probe request frame. When the data frame receiver is an AP, the first wireless frame can be an association response frame, a reassociation response frame, or a probe response frame.

[0248] In some embodiments, the second channel bandwidth includes at least one of a channel bandwidth of the first channel, a channel bandwidth of a secondary channel, or a channel bandwidth of an aggregated channel.

[0249] The first channel includes at least one main channel, and the aggregate channel is composed of the first channel and the secondary channel.

[0250] In some embodiments, the second radio frame includes second bandwidth information, and the second radio frame indicates to the data frame receiver through the second bandwidth information that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0251] The second bandwidth information is used to identify the channel bandwidth supported by the data frame receiver.

[0252] Optionally, the second bandwidth information may be second MCS capability information, and the second wireless frame indirectly indicates the channel bandwidth supported by the data frame receiver through the second MCS capability information, thereby indirectly indicating that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0253] Optionally, the second bandwidth information may be a second bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The second radio frame may indicate that the channel bandwidth corresponding to the second bandwidth index value is a channel bandwidth supported by the data frame receiver, that is, indicating that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0254] Optionally, the second bandwidth information can indicate different channel bandwidths through different identification values, and the second wireless frame can indicate through the identification value that the corresponding channel bandwidth is the channel bandwidth supported by the data frame receiver, that is, indicating that the channel bandwidth supported by the data frame receiver (the channel bandwidth corresponding to the identification value) is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0255] In some embodiments, the second wireless frame (for example, a probe response frame or a reassociation response frame in the process of establishing an initial association) may include a second UHR Capabilities information element, and the second UHR Capabilities information element is used to indicate that the data frame receiver supports the secondary channel access mechanism, that is, it is used to indicate that the data frame receiver supports switching to the channel bandwidth of the secondary channel when the first channel is busy for data frame transmission.

[0256] The second UHR Capabilities information element can indicate that the data frame receiver supports the secondary channel access mechanism, indirectly indicating that the data frame receiver supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel, that is, indirectly indicating that the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0257] S43: Send an ADDBA request frame in the first channel bandwidth, where the ADDBA request frame is used to request negotiation of a BA feedback mechanism applied to the second channel bandwidth.

[0258] S44: Receive an ADDBA response frame in the first channel bandwidth, where the ADDBA response frame is used to indicate the establishment of a BA feedback mechanism applied to the second channel bandwidth.

[0259] S45 , sending a data frame in the second channel bandwidth, and performing BA feedback with the data frame receiver in the second channel bandwidth after completing the data frame transmission.

[0260] In some embodiments, the implementation of steps S43 to S45 can refer to the implementation shown in step S32 in Figure 3, and will not be repeated here.

[0261] 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 to S45 may be implemented as an independent embodiment, and steps S41 to S45 may be implemented as an independent embodiment, but are not limited thereto.

[0262] FIG5 is a third flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the method is executed by a data frame receiver, and the method includes:

[0263] S51 , negotiate with a data frame sender in a first channel bandwidth about a BA feedback mechanism to be applied in a second channel bandwidth.

[0264] In some embodiments, the data frame receiver may receive an ADDBA request frame sent by the data frame sender under the first channel bandwidth, where the ADDBA request frame is used to request negotiation of a BA feedback mechanism applied to the second channel bandwidth.

[0265] Optionally, the ADDBA request frame includes first identification information, and the first identification information is used to indicate that the data frame sender supports the application of the BA feedback mechanism to the second channel bandwidth.

[0266] As an example, the data frame sender sends an ADDBA request frame under the channel bandwidth of the first channel. The ADDBA request frame includes first identification information. The ADDBA request frame indicates through the first identification information that the data frame sender supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregate channel.

[0267] Optionally, the first identification information may indicate, through different identification values, that the data frame sender supports the application of the BA feedback mechanism to at least one of the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel.

[0268] Optionally, the first identification information may identify different bandwidth information through different identification values, so as to indirectly indicate that the data frame sender supports the second channel bandwidth applied by the BA feedback mechanism.

[0269] Optionally, the first identification information may be a third bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The ADDBA request frame may indicate that the channel bandwidth corresponding to the third bandwidth index value is a channel bandwidth supported by the data frame sender, i.e., indicate that the channel bandwidth supported by the data frame sender is the second channel bandwidth used by the data frame sender to support the BA feedback mechanism.

[0270] In some embodiments, after receiving the ADDBA request frame, the data frame receiver may send an ADDBA response frame under the first channel bandwidth, where the ADDBA response frame is used to indicate the establishment of a BA feedback mechanism applied to the second channel bandwidth.

[0271] Optionally, the ADDBA response frame includes second identification information, and the second identification information is used to indicate that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0272] As an example, the data frame receiver sends an ADDBA response frame under the channel bandwidth of the first channel, and the ADDBA response frame includes second identification information. The ADDBA response frame indicates through the second identification information that the data frame receiver supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregate channel.

[0273] Optionally, the second identification information may indicate to the data frame receiver through different identification values ​​that the BA feedback mechanism is supported for application to at least one of the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel.

[0274] Optionally, the second identification information may identify different bandwidth information through different identification values, so as to indirectly indicate that the data frame receiver supports the second channel bandwidth applied by the BA feedback mechanism.

[0275] Optionally, the second identification information may be a fourth bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The ADDBA response frame may indicate that the channel bandwidth corresponding to the fourth bandwidth index value is a channel bandwidth supported by the data frame receiver, i.e., indicate that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver's support for the BA feedback mechanism.

[0276] After receiving the ADDBA request frame, the data frame receiver may send an ACK frame to the data frame sender to indicate receipt of the ADDBA request frame.

[0277] After receiving the ADDBA response frame, the data frame sender may send an ACK frame to the data frame receiver to indicate receipt of the ADDBA response frame.

[0278] S52: Receive a data frame in the second channel bandwidth, and perform BA feedback with the data frame sender in the second channel bandwidth after completing the data frame transmission.

[0279] In some embodiments, after the data frame sender and the data frame receiver complete negotiation of the BA feedback mechanism applied to the second channel bandwidth in the first channel bandwidth, the data frame receiver may receive the data frame sent by the data frame sender in the second channel bandwidth.

[0280] As an example, the data frame receiver may receive at least one QoS data frame sent by the data frame sender under the second channel bandwidth.

[0281] In some embodiments, the data frame received by the data frame receiver may be sent by the data frame sender within the channel bandwidth of the secondary channel when the first channel is busy and the secondary channel is idle.

[0282] After receiving all data frames, the data frame receiver can receive a BA request frame from the data frame sender within the channel bandwidth of the secondary channel. The BA request frame is used to request BA feedback from the data frame receiver. After receiving all data frames, if the data frame receiver receives a BA request frame within the channel bandwidth of the secondary channel, it sends a BA frame to the data frame sender within the channel bandwidth of the secondary channel to indicate that it has received all data frames.

[0283] In some embodiments, the data frame received by the data frame receiver may be sent by the data frame sender simultaneously using the channel bandwidth of the first channel and the channel bandwidth of the secondary channel, or using the channel bandwidth of the aggregated channel, when both the first channel and the secondary channel are idle. In this case, the data frame receiver may receive the data frame sent by the data frame sender using the corresponding channel bandwidth.

[0284] After receiving all data frames, the data frame receiver can receive a BA request frame from the data frame sender within the aggregated channel bandwidth. The BA request frame is used to request BA feedback from the data frame receiver. After receiving all data frames, if the data frame receiver receives a BA request frame within the aggregated channel bandwidth, it sends a BA frame to the data frame sender within the aggregated channel bandwidth to indicate that it has received all data frames.

[0285] In some embodiments, when both the first channel and the secondary channel are idle, the data frame receiver may receive a BA request frame within the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel. In this case, the data frame receiver may send a BA frame to the data frame sender within the channel bandwidth at which the BA request frame was received.

[0286] 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 and S52 may be implemented as an independent embodiment, and steps S51 and S52 may be implemented as independent embodiments, but are not limited thereto.

[0287] FIG6 is a fourth flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6 , the method is executed by a data frame receiver, and the method includes:

[0288] S61: Receive a first radio frame, where the first radio frame is used to indicate that a data frame sender supports application of a BA feedback mechanism to a second channel bandwidth.

[0289] In some embodiments, the data frame receiver may receive a first radio frame sent by the data frame sender before negotiating a BA feedback mechanism with the data frame receiver, where the first radio frame is used to indicate that the data frame sender supports the application of the BA feedback mechanism to the second channel bandwidth.

[0290] For example, the data frame receiver may receive a first radio frame before establishing an initial association with the data frame receiver or during the process of establishing an initial association, to determine through the first radio frame that the data frame sender supports the BA feedback mechanism applied to the second channel bandwidth.

[0291] When the data frame sender is a STA, the first wireless frame can be an association request frame, a reassociation request frame, or a probe request frame. When the data frame sender is an AP, the first wireless frame can be an association response frame, a reassociation response frame, or a probe response frame.

[0292] In some embodiments, the second channel bandwidth includes at least one of a channel bandwidth of the first channel, a channel bandwidth of a secondary channel, or a channel bandwidth of an aggregated channel.

[0293] The first channel includes at least one main channel, and the aggregate channel is composed of the first channel and the secondary channel.

[0294] In some embodiments, the first radio frame includes first bandwidth information, and the first radio frame indicates to the data frame sender through the first bandwidth information that it supports the application of the BA feedback mechanism to the second channel bandwidth.

[0295] The first bandwidth information is used to identify the channel bandwidth supported by the data frame sender.

[0296] Optionally, the first bandwidth information may be first modulation and coding scheme (MCS) capability information, and the first wireless frame indirectly indicates the channel bandwidth supported by the data frame sender through the first MCS capability information, thereby indirectly indicating that the channel bandwidth supported by the data frame sender is the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0297] Optionally, the first bandwidth information may be a first bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The first wireless frame may indicate that the channel bandwidth corresponding to the first bandwidth index value is a channel bandwidth supported by the data frame sender, that is, the channel bandwidth supported by the data frame sender is a second channel bandwidth used by the data frame sender to support the BA feedback mechanism.

[0298] Optionally, the first bandwidth information can indicate different channel bandwidths through different identification values, and the first wireless frame can indicate through the identification value that the corresponding channel bandwidth is the channel bandwidth supported by the data frame sender, that is, indicating that the channel bandwidth supported by the data frame sender (the channel bandwidth corresponding to the identification value) is the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0299] In some embodiments, the channel bandwidth of the secondary channel may be smaller than, equal to, or larger than the channel bandwidth of the first channel. For example, when the channel bandwidth of the first channel is 20 MHz, the channel bandwidth of the secondary channel may be 20 MHz or 40 MHz.

[0300] In some embodiments, the first wireless frame (for example, a probe request frame or a reassociation request frame in the process of establishing an initial association) may include a first UHR Capabilities information element, and the first UHR Capabilities information element is used to indicate that the data frame sender supports the secondary channel access mechanism, that is, it is used to indicate that the data frame sender supports switching to the channel bandwidth of the secondary channel when the first channel is busy for data frame transmission.

[0301] The first UHR Capabilities information element can indicate that the data frame sender supports the secondary channel access mechanism, indirectly indicating that the data frame sender supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel, that is, indirectly indicating that the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel is the second channel bandwidth applied by the data frame sender to support the BA feedback mechanism.

[0302] S62: Send a second radio frame, where the second radio frame is used to indicate that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0303] In some embodiments, the data frame receiver may send a second radio frame before negotiating a BA feedback mechanism with the data frame sender, so as to indicate through the second radio frame that the data frame receiver supports application of the BA feedback mechanism to the second channel bandwidth.

[0304] For example, the data frame receiver may send a second radio frame before establishing an initial association with the data frame sender or during the process of establishing the initial association, so as to indicate through the second radio frame that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0305] When the data frame receiver is a STA, the second wireless frame can be an association request frame, a reassociation request frame, or a probe request frame. When the data frame receiver is an AP, the first wireless frame can be an association response frame, a reassociation response frame, or a probe response frame.

[0306] In some embodiments, the second channel bandwidth includes at least one of a channel bandwidth of the first channel, a channel bandwidth of a secondary channel, or a channel bandwidth of an aggregated channel.

[0307] The first channel includes at least one main channel, and the aggregate channel is composed of the first channel and the secondary channel.

[0308] In some embodiments, the second radio frame includes second bandwidth information, and the second radio frame indicates to the data frame receiver through the second bandwidth information that the data frame receiver supports the application of the BA feedback mechanism to the second channel bandwidth.

[0309] The second bandwidth information is used to identify the channel bandwidth supported by the data frame receiver.

[0310] Optionally, the second bandwidth information may be second MCS capability information, and the second wireless frame indirectly indicates the channel bandwidth supported by the data frame receiver through the second MCS capability information, thereby indirectly indicating that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0311] Optionally, the second bandwidth information may be a second bandwidth index value, where different bandwidth index values ​​correspond to different channel bandwidths. The second radio frame may indicate that the channel bandwidth corresponding to the second bandwidth index value is a channel bandwidth supported by the data frame receiver, that is, indicating that the channel bandwidth supported by the data frame receiver is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0312] Optionally, the second bandwidth information can indicate different channel bandwidths through different identification values, and the second wireless frame can indicate through the identification value that the corresponding channel bandwidth is the channel bandwidth supported by the data frame receiver, that is, indicating that the channel bandwidth supported by the data frame receiver (the channel bandwidth corresponding to the identification value) is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0313] In some embodiments, the second wireless frame (for example, a probe response frame or a reassociation response frame in the process of establishing an initial association) may include a second UHR Capabilities information element, and the second UHR Capabilities information element is used to indicate that the data frame receiver supports the secondary channel access mechanism, that is, it is used to indicate that the data frame receiver supports switching to the channel bandwidth of the secondary channel when the first channel is busy for data frame transmission.

[0314] The second UHR Capabilities information element can indicate that the data frame receiver supports the secondary channel access mechanism, indirectly indicating that the data frame receiver supports the BA feedback mechanism applied to the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel, that is, indirectly indicating that the channel bandwidth of the secondary channel or the channel bandwidth of the aggregated channel is the second channel bandwidth applied by the data frame receiver to support the BA feedback mechanism.

[0315] S63: Receive an ADDBA request frame in the first channel bandwidth, where the ADDBA request frame is used to request negotiation of a BA feedback mechanism applied to the second channel bandwidth.

[0316] S64: Send an ADDBA response frame in the first channel bandwidth, where the ADDBA response frame is used to indicate the establishment of a BA feedback mechanism applied to the second channel bandwidth.

[0317] S65: Receive the data frame in the second channel bandwidth, and perform BA feedback with the data frame sender in the second channel bandwidth after completing the data frame transmission.

[0318] In some embodiments, the implementation of steps S63 to S65 can refer to the implementation shown in step S52 in Figure 5, and will not be repeated here.

[0319] 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 S61 to S65 may be implemented as an independent embodiment, and any combination of steps S61 to S65 may be implemented as an independent embodiment, but the present disclosure is not limited thereto.

[0320] FIG7 is a schematic diagram of a communication device according to an embodiment of the present disclosure. As shown in FIG7 , the communication device 700 may include a transceiver module 710 .

[0321] In some embodiments, the above-mentioned transceiver module 710 is used to negotiate with the data frame receiver under the first channel bandwidth a block acknowledgment BA feedback mechanism applied to the second channel bandwidth; send the data frame under the second channel bandwidth, and perform BA feedback with the data frame receiver under the second channel bandwidth after completing the data frame transmission.

[0322] Optionally, the above-mentioned transceiver module 710 is used to execute at least one of the transceiver steps (for example, step S21, step S23, step S25, step S31-step S32, step S41-step S45, but not limited to this) performed by the data frame sender in any of the above methods, which will not be repeated here.

[0323] FIG8 is a second schematic diagram of the structure of a communication device according to an embodiment of the present disclosure. As shown in FIG8 , the communication device 800 may include a transceiver module 810 .

[0324] In some embodiments, the transceiver module 810 is configured to negotiate with a data frame sender on a BA feedback mechanism applied to a second channel bandwidth on a first channel bandwidth; receive data frames on the second channel bandwidth; and perform BA feedback with the data frame sender on the second channel bandwidth after completing data frame transmission.

[0325] Optionally, the above-mentioned transceiver module 810 is used to execute at least one of the transceiver steps (for example, step S22, step S24, step S25, step S51-step S52, step S61-step S65 but not limited to these) performed by the data frame receiver in any of the above methods, which will not be repeated here.

[0326] 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.

[0327] 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.

[0328] 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 data frame sender or receiver, or a chip, chip system, or processor that supports the data frame sender or receiver 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.

[0329] 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.

[0330] 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.

[0331] 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-S25, steps S31-S32, steps S41-S45, steps S51-S52, and steps S61-S65, but not limited thereto), and the processor 901 performs at least one of the other steps (for example, steps such as parsing a radio frame, but not limited thereto).

[0332] 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.

[0333] 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.

[0334] The communication device 900 described in the above embodiment may be a data frame sender or a second TXOP, 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.

[0335] 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.

[0336] 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.

[0337] In some embodiments, the interface circuit 1003 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S21-step S25, step S31-step S32, step S41-step S45, step S51-step S52, step S61-step S65, but not limited to these), and the processor 1001 performs at least one of the other steps (for example, steps such as parsing of wireless frames, but not limited to these).

[0338] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0339] 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.

[0340] 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.

[0341] 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.

[0342] 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 data frame sender, the method includes: Negotiating with a data frame receiver a block acknowledgment (BA) feedback mechanism applicable to a second channel bandwidth under a first channel bandwidth; Sending a data frame under the second channel bandwidth and performing BA feedback with the data frame receiver under the second channel bandwidth after completing the transmission of the data frame.

2. The method according to claim 1, wherein The first channel bandwidth includes the channel bandwidth of a first channel, and the second channel bandwidth includes at least one of the channel bandwidth of the first channel, the channel bandwidth of a secondary channel, or the channel bandwidth of an aggregated channel. The first channel includes at least one type of primary channel, and the aggregated channel is composed of the first channel and the secondary channel.

3. The method according to claim 1, wherein The negotiating with a data frame receiver a BA feedback mechanism applicable to a second channel bandwidth under a first channel bandwidth includes: Sending an Add Block Acknowledgment (ADDBA) request frame under the first channel bandwidth, where the ADDBA request frame is used to request negotiating a BA feedback mechanism applicable to the second channel bandwidth; Receiving an ADDBA response frame under the first channel bandwidth, where the ADDBA response frame is used to indicate establishing a BA feedback mechanism applicable to the second channel bandwidth.

4. The method according to claim 3, characterized in that, The ADDBA request frame includes first identification information, where the first identification information is used to indicate that the data frame sender supports applying the BA feedback mechanism to the second channel bandwidth; The ADDBA response frame includes second identification information, where the second identification information is used to indicate that the data frame receiver supports applying the BA feedback mechanism to the second channel bandwidth.

5. The method according to claim 1, characterized in that, The method further includes: Sending a first wireless frame, where the first wireless frame includes first modulation and coding scheme (MCS) capability information, and the first wireless frame indicates that the data frame sender supports applying the BA feedback mechanism to the second channel bandwidth through the first MCS capability information; Receiving a second wireless frame, where the second wireless frame includes second MCS capability information, and the second wireless frame indicates that the data frame receiver supports applying the BA feedback mechanism to the second channel bandwidth through the second MCS capability information.

6. The method according to claim 2, wherein When the first channel is busy and the secondary channel is idle, the sending a data frame under the second channel bandwidth and performing BA feedback with the data frame receiver under the second channel bandwidth after sending the data frame includes: Sending a data frame under the channel bandwidth of the secondary channel; Performing BA feedback with the data frame receiver under the channel bandwidth of the secondary channel after completing the transmission of the data frame.

7. The method according to claim 2, wherein When both the first channel and the secondary channel are idle, the sending a data frame under the second channel bandwidth and performing BA feedback with the data frame receiver under the second channel bandwidth after sending the data frame includes: Sending a data frame under the channel bandwidth of the aggregated channel, or simultaneously sending a data frame under the channel bandwidths of the first channel and the secondary channel; Performing BA feedback with the data frame receiver under the channel bandwidth of the aggregated channel after completing the transmission of the data frame.

8. A communication method, characterized in that, Applied to a data frame receiver, the method includes: Negotiate with the data frame sender under the first channel bandwidth for applying the BA feedback mechanism to the second channel bandwidth; Receive a data frame under the second channel bandwidth, and perform BA feedback with the data frame sender under the second channel bandwidth after completing the data frame transmission.

9. The method according to claim 8, wherein The first channel bandwidth includes the channel bandwidth of the first channel, and the second channel bandwidth includes at least one of the channel bandwidth of the first channel, the channel bandwidth of the secondary channel, or the channel bandwidth of the aggregated channel. The first channel includes at least one primary channel, and the aggregated channel is composed of the first channel and the secondary channel.

10. The method according to claim 8, wherein The negotiating with the data frame sender under the first channel bandwidth for applying the BA feedback mechanism to the second channel bandwidth includes: Receive an ADDBA request frame under the first channel bandwidth, where the ADDBA request frame is used to request negotiation for applying the BA feedback mechanism to the second channel bandwidth; Send an ADDBA response frame under the first channel bandwidth, where the ADDBA response frame is used to indicate the establishment of the BA feedback mechanism applied to the second channel bandwidth.

11. The method according to claim 10, wherein The ADDBA request frame includes first identification information, and the first identification information is used to indicate that the data frame sender supports applying the BA feedback mechanism to the second channel bandwidth; The ADDBA response frame includes second identification information, and the second identification information is used to indicate that the data frame receiver supports applying the BA feedback mechanism to the second channel bandwidth.

12. The method according to claim 8, wherein The method further includes: Receive a first wireless frame, where the first wireless frame includes first MCS capability information, and the first wireless frame indicates that the data frame sender supports applying the BA feedback mechanism to the second channel bandwidth through the first MCS capability information; Receive a second wireless frame, where the second wireless frame includes second MCS capability information, and the second wireless frame indicates that the data frame receiver supports applying the BA feedback mechanism to the second channel bandwidth through the second MCS capability information.

13. The method according to claim 9, characterized in that, When the first channel is busy and the secondary channel is idle, the receiving a data frame under the second channel bandwidth and performing BA feedback with the data frame receiver under the second channel bandwidth after completing the data frame transmission includes: Receive a data frame under the channel bandwidth of the secondary channel; Perform BA feedback with the data frame sender under the channel bandwidth of the secondary channel after completing the data frame transmission.

14. The method according to claim 9, characterized in that, When both the first channel and the secondary channel are idle, the receiving a data frame under the second channel bandwidth and performing BA feedback with the data frame sender under the second channel bandwidth after completing the data frame transmission includes: Receive a data frame under the channel bandwidth of the aggregated channel, or receive a data frame simultaneously under the channel bandwidth of the first channel and the channel bandwidth of the secondary channel; Perform BA feedback with the data frame sender under the channel bandwidth of the aggregated channel after completing the data frame transmission.

15. A communication device, characterized in that, Includes: A transceiver module, configured to negotiate with the data frame receiver under the first channel bandwidth for applying the block acknowledgment BA feedback mechanism to the second channel bandwidth; The transceiver module is used to send data frames under the second channel bandwidth and perform BA feedback with the data frame receiver under the second channel bandwidth after completing the transmission of the data frames.

16. A communication device, characterized in that, It includes: The transceiver module is used to negotiate with the data frame sender under the first channel bandwidth for the BA feedback mechanism applied under the second channel bandwidth; The transceiver module is used to receive data frames under the second channel bandwidth and perform BA feedback with the data frame sender under the second channel bandwidth after completing the transmission of the data frames.

17. A communication device, characterized in that, It includes: One or more processors; Wherein, the processor is used to execute the communication method described in any one of claims 1-7 or claims 8-14.

18. A storage medium, wherein the storage medium stores instructions, characterized in that, When the instruction runs on the communication device, the communication device is caused to execute the communication method described in any one of claims 1-7 or claims 8-14.

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