TDLS communication negotiation method, device, and communication system

Abstract

The embodiments of the present disclosure relate to a TDLS communication negotiation method, a device, and a communication system. The TDLS communication negotiation method comprises: a TDLS initiating end sending to an access point device a first enhanced multi-link (EML) operation mode notification frame; and before the reception of a second EML operation mode notification frame with which the access point device replies, or before the arrival of an EML transition timeout, sending a TDLS discovery request frame to a TDLS responding end by means of the access point device. Therefore, before a TDLS initiating end enters an EML operation mode, a TDLS responding end is effectively discovered, a TDLS connection is established, and a TDLS discovery process is perfected, thereby improving the accuracy and efficiency of establishment of a TDLS link.

Description

TDLS communication negotiation method, device and communication system Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a TDLS communication negotiation method, device, and communication system. Background Art

[0002] To achieve extremely high throughput (EHT), multi-link operation (MLO) is currently being researched as a key technology in Wi-Fi. EHT devices support multi-link communication and are capable of communicating concurrently across multiple links or frequency bands. These devices are called multi-link devices (MLDs). MLO technology enables multiple links between access point multi-link devices (AP MLDs) and non-access point multi-link devices (Non-AP MLDs) across frequency bands, significantly improving throughput.

[0003] An MLD consists of one or more subordinate stations, each of which can operate on a link. An MLD can be either an access point MLD (AP MLD) or a non-AP MLD (non-AP MLD), corresponding to an access point (AP) or a non-AP STA.

[0004] Considering the limited reception capabilities of some stations (STAs), 802.11be introduces an Enhanced Multi-Link (EML) mode for non-AP MLD. Specifically, it includes EML Single Radio (EMLSR) and EML Multiple Radio (EMLMR) modes. Therefore, the working mechanism of EML mode needs to be further improved.

[0005] Summary of the Invention

[0006] The embodiments of the present disclosure provide a TDLS communication negotiation method, device, and communication system to further improve the working mechanism of the EML mode.

[0007] In one aspect, an embodiment of the present disclosure provides a TDLS communication negotiation method, the method comprising:

[0008] The TDLS initiator sends a first enhanced multi-link (EML) operation mode notification frame to the access point device;

[0009] Before receiving the second EML operation mode notification frame replied by the access point device, or before the EML conversion timeout period expires, a TDLS discovery request frame is sent to the TDLS responder through the access point device.

[0010] On the other hand, an embodiment of the present disclosure further provides a TDLS communication negotiation method, the method comprising:

[0011] The access point device receives a first enhanced multi-link (EML) operation mode notification frame sent by the TDLS initiator;

[0012] Before replying the second EML operation mode notification frame to the TDLS initiator, or before the EML conversion timeout period expires, receiving the TDLS discovery request frame sent by the TDLS initiator, and forwarding the TDLS discovery request frame to the TDLS responder.

[0013] On the other hand, an embodiment of the present disclosure further provides a TDLS communication negotiation method, the method comprising:

[0014] The TDLS responder receives the TDLS discovery request frame forwarded by the access point device;

[0015] The TDLS discovery request frame is received by the access point device before replying the second EML operation mode notification frame to the TDLS initiator or before the EML conversion timeout expires, and is forwarded to the TDLS responder;

[0016] The second EML operation mode notification frame is used to respond to the first enhanced multi-link EML operation mode notification frame sent by the TDLS initiator.

[0017] On the other hand, an embodiment of the present disclosure further provides a TDLS initiator, the TDLS initiator including:

[0018] A first sending module is configured to send a first enhanced multi-link (EML) operation mode notification frame to an access point device;

[0019] The second sending module is configured to send a TDLS discovery request frame to the TDLS responder through the access point device before receiving the second EML operation mode notification frame replied by the access point device or before the EML conversion timeout period expires.

[0020] On the other hand, an embodiment of the present disclosure further provides an access point device, the access point device comprising:

[0021] A first receiving module is configured to receive a first enhanced multi-link (EML) operation mode notification frame sent by a TDLS initiator;

[0022] The forwarding module is used to receive the TDLS discovery request frame sent by the TDLS initiator before replying the second EML operation mode notification frame to the TDLS initiator or before the EML conversion timeout period expires, and forward the TDLS discovery request frame to the TDLS responder.

[0023] On the other hand, an embodiment of the present disclosure further provides a TDLS responder, the TDLS responder comprising:

[0024] A second receiving module is used to receive a TDLS discovery request frame forwarded by an access point device;

[0025] The TDLS discovery request frame is received by the access point device before replying the second EML operation mode notification frame to the TDLS initiator or before the EML conversion timeout expires, and is forwarded to the TDLS responder;

[0026] The second EML operation mode notification frame is used to respond to the first enhanced multi-link EML operation mode notification frame sent by the TDLS initiator.

[0027] On the other hand, the embodiment of the present disclosure further provides a TDLS initiator, including:

[0028] one or more processors;

[0029] The TDLS initiator is used to implement the TDLS communication negotiation method described in the embodiment of the present disclosure.

[0030] On the other hand, an embodiment of the present disclosure further provides an access point device, including:

[0031] one or more processors;

[0032] The access point device is used to implement the TDLS communication negotiation method described in the embodiment of the present disclosure.

[0033] On the other hand, the embodiment of the present disclosure further provides a TDLS responder, including:

[0034] one or more processors;

[0035] The TDLS responder is used to implement the TDLS communication negotiation method described in the embodiment of the present disclosure.

[0036] An embodiment of the present disclosure further provides a communication system, including a TDLS initiator, an access point device, and a TDLS responder; wherein the TDLS initiator is configured to implement the TDLS communication negotiation method described in the embodiment of the present disclosure, the access point device is configured to implement the TDLS communication negotiation method described in the embodiment of the present disclosure, and the TDLS responder is configured to implement the TDLS communication negotiation method described in the embodiment of the present disclosure.

[0037] The embodiment of the present disclosure further provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the TDLS communication negotiation method as described in the embodiment of the present disclosure.

[0038] In the disclosed embodiment, the TDLS initiator sends a TDLS discovery request frame to the TDLS responder via the access point device before receiving the second EML operation mode notification frame from the access point device, or before the EML transition timeout expires. This allows the TDLS responder to reply with a TDLS discovery response frame before the TDLS initiator enters the EML operation mode. This allows the TDLS initiator to effectively discover the TDLS responder and establish a TDLS connection before entering the EML operation mode, improving the TDLS discovery process and enhancing the accuracy and efficiency of TDLS link establishment.

[0039] 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

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0041] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0042] FIG2 is one of exemplary interaction diagrams of a method provided according to an embodiment of the present disclosure;

[0043] FIG3 is a second exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0044] FIG4 is a third exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0045] FIG5 is a flowchart of a TDLS communication negotiation method according to an embodiment of the present disclosure;

[0046] FIG6 is a second flow chart of the TDLS communication negotiation method provided in an embodiment of the present disclosure;

[0047] FIG7 is a third flow chart of the TDLS communication negotiation method provided in an embodiment of the present disclosure;

[0048] FIG8 is a schematic diagram of the structure of the TDLS initiator proposed in an embodiment of the present disclosure;

[0049] FIG9 is a schematic structural diagram of an access point device proposed in an embodiment of the present disclosure;

[0050] FIG10 is a schematic diagram of the structure of the TDLS responder proposed in an embodiment of the present disclosure;

[0051] FIG11 is a schematic structural diagram of a terminal proposed in an embodiment of the present disclosure;

[0052] FIG12 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0053] The embodiments of the present disclosure provide a TDLS communication negotiation method, device, and communication system.

[0054] In a first aspect, an embodiment of the present disclosure provides a TDLS communication negotiation method, the method comprising:

[0055] The TDLS initiator sends a first enhanced multi-link (EML) operation mode notification frame to the access point device;

[0056] Before receiving the second EML operation mode notification frame replied by the access point device, or before the EML conversion timeout period expires, a TDLS discovery request frame is sent to the TDLS responder through the access point device.

[0057] In the above embodiment, the TDLS initiator can effectively discover the TDLS responder and establish a TDLS connection before entering the EML operation mode, thereby improving the TDLS discovery process and enhancing the accuracy and efficiency of TDLS link establishment.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the TDLS discovery request frame includes at least one of the following:

[0059] The TDLS responder sends a response timeout for the TDLS discovery response frame;

[0060] The EML operation mode information of the TDLS initiator, wherein the EML operation mode identifier is: whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

[0061] In the above embodiment, the TDLS discovery request frame carries a response timeout, so that the TDLS responder replies with a TDLS discovery response frame within the time limit. The TDLS discovery request frame carries EML operation mode information, so that the TDLS responder determines whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

[0062] In conjunction with some embodiments of the first aspect, in some embodiments, the TDLS discovery request frame includes a TDLS Multi-Link element;

[0063] The Multi-Link Control field of the TDLS Multi-Link element includes the Presence Bitmap subfield;

[0064] The Presence Bitmap subfield includes a response timeout presence flag bit; the response timeout presence flag bit identifies whether the Common Info field of the TDLS Multi-Link element includes a TDLS discovery response timeout subfield; the TDLS discovery response timeout subfield is used to carry the response timeout period.

[0065] In the above embodiment, by identifying whether the TDLS Multi-Link element includes a response timeout subfield and carrying the response timeout time through the response timeout subfield, the TDLS responder can know the response timeout time and reply to the TDLS discovery response frame within the time.

[0066] In combination with some embodiments of the first aspect, in some embodiments, the response timeout time is before the EML conversion timeout time; or, the response timeout time is after a SIFS time after the EML conversion delay time.

[0067] In the above embodiment, the TDLS responder replies to the TDLS discovery response frame before the EML conversion timeout time, so that the TDLS initiator can effectively discover the TDLS responder and establish a TDLS connection before entering the EML operation mode; it can also reply to the TDLS discovery response frame after a SIFS time after the EML conversion delay time. For example, after a SIFS time after the EML conversion delay time, the TDLS initiator that has not entered the EML operation mode will no longer enter the EML operation mode and can receive the TDLS discovery response frame.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the response timeout period is before the EML conversion timeout period expires, and the method further includes:

[0069] The TDLS initiator does not receive a TDLS discovery response frame within the response timeout period; and the TDLS initiator does not receive a second EML operation mode notification frame before the EML transition timeout period expires. The TDLS initiator enters the EML operation mode according to the parameter information of the first EML operation mode notification frame when the EML transition timeout period expires.

[0070] or

[0071] Within the response timeout, the TDLS initiator receives a TDLS discovery response frame; and before the response timeout expires to the EML conversion timeout, the TDLS initiator receives the second EML operation mode notification frame. When the TDLS initiator receives the second EML operation mode notification frame, the TDLS initiator enters the EML operation mode according to the parameter information of the second EML operation mode notification frame.

[0072] In the above embodiment, it is respectively identified whether the TDLS initiator receives the second EML operation mode notification frame replied by the AP MLD, and how the TDLS initiator determines the parameter information for entering the EML operation mode, thereby improving the workflow of the EML operation mode.

[0073] In combination with some embodiments of the first aspect, in some embodiments, the response timeout is one SIFS time after the EML conversion delay time, and the access point device forwards the TDLS discovery request frame to the TDLS responder before the EML conversion timeout expires. The TDLS initiator does not receive the second EML operation mode notification frame, and the method further includes:

[0074] Before the EML conversion timeout expires, the TDLS initiator receives a TDLS discovery response frame, and when the EML conversion timeout expires, enters the EML operation mode according to the parameter information of the first EML operation mode notification frame;

[0075] or

[0076] Before the EML conversion timeout expires, the TDLS initiator does not receive a TDLS discovery response frame; and before the response timeout expires, the TDLS initiator receives the TDLS discovery response frame, and when the EML conversion timeout expires, enters the EML operation mode according to the parameter information of the first EML operation mode notification frame.

[0077] In the above embodiments, whether the TDLS initiator receives the TDLS discovery response frame is identified, how the TDLS initiator determines the time to enter the EML operation mode, and the workflow of the EML operation mode is improved.

[0078] In combination with some embodiments of the first aspect, in some embodiments, the response timeout is one SIFS time after the EML conversion delay time, and the access point device forwards the TDLS discovery request frame to the TDLS responder before the EML conversion timeout expires. The TDLS initiator receives the second EML operation mode notification frame, and the method further includes:

[0079] Before receiving the second EML operation mode notification frame, the TDLS initiator receives a TDLS discovery response frame sent by the TDLS responder, and when receiving the second EML operation mode notification frame, the TDLS initiator enters the EML operation mode according to the parameter information of the second EML operation mode notification frame;

[0080] Before receiving the second EML operation mode notification frame, the TDLS discovery response frame sent by the TDLS responder is not received, and the TDLS discovery response frame is received before the response timeout period expires. Then, when the TDLS initiator receives the second EML operation mode notification frame, it enters the EML operation mode according to the parameter information of the second EML operation mode notification frame.

[0081] In the above embodiments, it is respectively identified whether the TDLS initiator receives a TDLS discovery response frame before receiving the second EML operation mode notification frame, how the TDLS initiator determines the entry time to enter the EML operation mode, and improves the workflow of the EML operation mode.

[0082] In combination with some embodiments of the first aspect, in some embodiments, if the TDLS initiator does not receive a TDLS discovery response frame sent by the TDLS responder within the response timeout period, it determines that the TDLS responder is not found.

[0083] In the above embodiment, if the TDLS initiator does not receive the TDLS discovery response frame sent by the TDLS responder within the response timeout period (TDLS discovery timeout period), it is indicated that the TDLS responder is not found, the TDLS connection is not established, the TDLS discovery process is improved, and the accuracy and efficiency of the TDLS link establishment are improved.

[0084] In a second aspect, an embodiment of the present disclosure provides a TDLS communication negotiation method, the method comprising:

[0085] The access point device receives a first enhanced multi-link (EML) operation mode notification frame sent by the TDLS initiator;

[0086] Before replying the second EML operation mode notification frame to the TDLS initiator, or before the EML conversion timeout period expires, receiving the TDLS discovery request frame sent by the TDLS initiator, and forwarding the TDLS discovery request frame to the TDLS responder.

[0087] In conjunction with some embodiments of the second aspect, in some embodiments, the TDLS discovery request frame includes a TDLS Multi-Link element;

[0088] The Presence Bitmap subfield of the TDLS Multi-Link element includes: a TDLS initiator EML information presence identification field;

[0089] The TDLS initiator EML information presence identification field identifies whether the TDLS discovery request frame includes the EML operation mode information of the TDLS initiator;

[0090] The EML operation mode identifier indicates whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

[0091] In conjunction with some embodiments of the second aspect, in some embodiments, the TDLS discovery request frame includes the EML operation mode information;

[0092] The Common Info field of the TDLS Multi-Link element includes an EML Control field, and the EML Control field carries the EML operation mode information.

[0093] In conjunction with some embodiments of the second aspect, in some embodiments, the TDLS discovery request frame includes:

[0094] The TDLS responder sends a response timeout for the TDLS discovery response frame;

[0095] The response timeout time is before the EML conversion timeout time; or, the response timeout time is after a SIFS time after the EML conversion delay time.

[0096] In conjunction with some embodiments of the second aspect, in some embodiments, after forwarding the TDLS discovery request frame to the TDLS responder, the method further includes:

[0097] The response timeout period is before the EML conversion timeout period expires, and the access point device does not reply to the TDLS initiator with the second EML operation mode notification frame from the moment it forwards the TDLS discovery request frame to the TDLS responder until the response timeout period expires;

[0098] or

[0099] The response timeout is one SIFS time after the EML conversion delay time, and the access point device replies to or does not reply to the second EML operation mode notification frame to the TDLS initiator from the moment the TDLS discovery request frame is forwarded to the TDLS responder until the EML conversion timeout expires.

[0100] In a third aspect, an embodiment of the present disclosure provides a TDLS communication negotiation method, the method comprising:

[0101] The TDLS responder receives the TDLS discovery request frame forwarded by the access point device;

[0102] The TDLS discovery request frame is received by the access point device before replying the second EML operation mode notification frame to the TDLS initiator or before the EML conversion timeout expires, and is forwarded to the TDLS responder;

[0103] The second EML operation mode notification frame is used to respond to the first enhanced multi-link EML operation mode notification frame sent by the TDLS initiator.

[0104] In conjunction with some embodiments of the third aspect, in some embodiments, the TDLS discovery request frame includes a TDLS Multi-Link element;

[0105] The Presence Bitmap subfield of the TDLS Multi-Link element includes: a TDLS initiator EML information presence identification field;

[0106] The TDLS initiator EML information presence identification field identifies whether the TDLS discovery request frame includes the EML operation mode information of the TDLS initiator;

[0107] The EML operation mode identifier indicates whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

[0108] In conjunction with some embodiments of the third aspect, in some embodiments, the TDLS discovery request frame includes the EML operation mode information;

[0109] The Common Info field of the TDLS Multi-Link element includes an EML Control field, and the EML Control field carries the EML operation mode information.

[0110] In conjunction with some embodiments of the third aspect, in some embodiments, the TDLS discovery request frame includes:

[0111] The TDLS responder sends a response timeout for the TDLS discovery response frame;

[0112] The response timeout time is before the EML conversion timeout time; or, the response timeout time is after a SIFS time after the EML conversion delay time.

[0113] In conjunction with some embodiments of the third aspect, in some embodiments, the response timeout period is before the EML conversion timeout period expires, and the access point device does not reply to the TDLS initiator with the second EML operation mode notification frame from the moment it forwards the TDLS discovery request frame to the TDLS responder until the response timeout period expires;

[0114] or

[0115] The response timeout is one SIFS time after the EML conversion delay time, and the access point device replies to or does not reply to the second EML operation mode notification frame to the TDLS initiator from the moment the TDLS discovery request frame is forwarded to the TDLS responder until the EML conversion timeout expires.

[0116] In conjunction with some embodiments of the third aspect, in some embodiments, the response timeout period is before the EML conversion timeout period expires, and the method further includes:

[0117] Sending a TDLS discovery response frame to the TDLS initiator within the response timeout period.

[0118] In conjunction with some embodiments of the third aspect, in some embodiments, the response timeout period is one SIFS time after the EML conversion delay period, and the method further includes:

[0119] Before the EML conversion timeout period expires, sending a TDLS discovery response frame to the TDLS initiator;

[0120] or

[0121] Before the EML conversion timeout expires, no TDLS discovery response frame is sent to the TDLS initiator; and before the data exchange of other EMLSR links or EMLMR links that receive the initial control frame is completed and before the response timeout expires, a TDLS discovery response frame is sent to the TDLS initiator.

[0122] In a fourth aspect, an embodiment of the present disclosure further provides a TDLS initiator, which includes at least one of a first sending module and a second sending module; wherein the TDLS initiator is used to execute the optional implementation method of the first aspect.

[0123] In a fifth aspect, an embodiment of the present disclosure further provides an access point device, comprising: at least one of a first receiving module and a forwarding module; wherein the above-mentioned access point device is used to execute the optional implementation method of the second aspect.

[0124] In a sixth aspect, an embodiment of the present disclosure further provides a TDLS responder, which includes a second receiving module; wherein the TDLS responder is used to execute the optional implementation of the first aspect.

[0125] In a seventh aspect, an embodiment of the present disclosure further provides a TDLS initiator, including:

[0126] one or more processors;

[0127] The TDLS initiator is configured to execute the optional implementation of the first aspect.

[0128] In an eighth aspect, an embodiment of the present disclosure further provides an access point device, including:

[0129] one or more processors;

[0130] The access point device is used to perform the optional implementation of the second aspect.

[0131] In a ninth aspect, an embodiment of the present disclosure further provides a TDLS responder, including:

[0132] one or more processors;

[0133] The TDLS responder is used to execute the optional implementation of the third aspect.

[0134] In the tenth aspect, an embodiment of the present disclosure further provides a communication system, including a TDLS initiator and an access point device; wherein the TDLS initiator is configured to execute the optional implementation method as described in the first aspect, the access point device is configured as the optional implementation method as described in the second aspect, and the TDLS responder is configured as the optional implementation method as described in the third aspect.

[0135] In the eleventh aspect, an embodiment of the present disclosure further provides a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the optional implementation methods described in the first, second, and third aspects.

[0136] In the twelfth 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 optional implementation of the first aspect, the second aspect, and the third aspect.

[0137] In a thirteenth 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 optional implementation of the first, second, and third aspects.

[0138] In a fourteenth aspect, an embodiment of the present disclosure provides a chip or a chip system, which includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0139] It is understandable that the above-mentioned TDLS initiator, access point device, TDLS responder, communication system, 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.

[0140] The present disclosure provides a TDLS communication negotiation method, device, and communication system. In some embodiments, the terms TDLS communication negotiation method, signal transmission method, wireless frame transmission method, etc. are interchangeable, and the terms information processing system, communication system, etc. are interchangeable.

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

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

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

[0144] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0145] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0146] 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.

[0147] 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.

[0148] 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.

[0149] 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.

[0150] 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.

[0151] 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.

[0152] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

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

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

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

[0156] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0157] As shown in Figure 1, the communication system 100 includes a TDLS initiator 101, a TDLS responder 103, and an access point (AP) 102. The TDLS initiator 101 and the TDLS responder 103 can be station devices (STAs) respectively.

[0158] In some embodiments, the TDLS initiator 101 and the TDLS responder 103 include, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal that supports WiFi communication. Optionally, the wireless communication terminal may be, for example, a mobile phone, a wearable device, an Internet of Things device that supports WiFi communication, a car with WiFi communication, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, but is not limited thereto.

[0159] Specifically, the TDLS initiator 101 and the TDLS responder 103 may be terminal devices or network devices equipped with a wireless fidelity (WiFi) chip. Optionally, the TDLS initiator 101 and the TDLS responder 103 may support multiple WLAN standards, such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, and 802.11bn, as well as the next generation 802.11 protocol, but are not limited thereto.

[0160] In some embodiments, the access point device 102 can be an access point for a mobile terminal to enter a wired network. The AP is equivalent to a bridge connecting a wired network and a wireless network. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet. Specifically, the AP can be a terminal device or a network device with a wireless fidelity chip. Optionally, the AP can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a, 802.11bf, 802.11bn, and support the next generation 802.11 protocol, but is not limited to this.

[0161] Optionally, in an embodiment of the present disclosure, the AP and STA may be devices supporting multiple connections, for example, they may be represented as a multi-connection access point device (Access Point Multi-Link Device, AP MLD) and a multi-connection site device (Non-Access Point Multi-Link Device, Non-AP MLD), respectively; AP MLD may represent an access point that supports multi-connection communication functions, and non-AP MLD may represent a site that supports multi-connection communication functions.

[0162] 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.

[0163] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0164] The various embodiments of the present disclosure can be applied to wireless local area networks (WLANs), such as those using the 802.11 series of protocols. In a WLAN, a Basic Service Set (BSS) is a fundamental component of a WLAN. A BSS network consists of station devices with some association within a specific coverage area. One scenario of association is that stations communicate directly with each other in an ad hoc network, which is called an Independent Basic Service Set (IBSS). Another more common scenario is that in a BSS network, there is only one central station dedicated to managing the BSS, called an access point, and all other STAs in the network are associated with it. Other stations in the BSS network that are not the central station are called terminals, also called non-AP STAs. Terminals and non-AP STAs are collectively referred to as STAs. When describing STAs, there is no need to distinguish between APs and non-AP STAs. In the same BSS network, due to distance, transmission power, and other factors, a STA cannot detect other STAs that are farther away from it, and the two STAs are each other's hidden nodes.

[0165] Figures 2 and 3 are interactive diagrams of a TDLS communication negotiation method according to an embodiment of the present disclosure. As shown in Figures 2 and 3, the method includes:

[0166] Step 201: A TDLS initiator sends a first enhanced multi-link (EML) operation mode notification frame to an access point device.

[0167] Steps 202-203: before receiving the second EML operation mode notification frame replied by the access point device, or before the EML conversion timeout period expires, sending a TDLS discovery request frame to the TDLS responder through the access point device.

[0168] EML mode includes EML Single Radio (EMLSR) and EML Multiple Radio (EMLMR) modes. When a non-AP MLD is in EML mode, it only monitors the channel and receives initial control frames (ICFs) sent by the AP MLD in the form of orthogonal frequency division multiplexing physical layer protocol data units (Physical Layer Protocol Data Units, PPDUs) and non-high throughput repeated PPDUs. These initial control frames include multi-user request transmission trigger frames or buffer status report polling trigger frames.

[0169] Specifically, after the non-AP MLD requests to enter the EML mode from the AP MLD associated with it, the non-AP STA on the link belonging to the non-AP MLD and marked as EML mode enters the active state (Active Mde) or the awake state (Awake Mode), enters the listening operation and receives the initial control frame mode sent by the AP MLD; while the non-AP STA on the link not marked as EML mode enters the doze state (Doze Mode) and cannot send or receive non-wake-up radio (WUR) PPDU.

[0170] Furthermore, MLDs can also establish a Tunneled Direct Link Setup (TDLS) link, enabling P2P communication between STAs without going through an AP, thus avoiding delays caused by network congestion. However, the prerequisite for establishing a TDLS link is that the TDLS initiator discovers the TDLS device (i.e., the TDLS responder) in its basic service set. The discovery process mainly includes the following three stages:

[0171] (1) The TDLS initiator sends a TDLS Discovery Request frame to its associated AP.

[0172] (2) The AP forwards the TDLS discovery request frame to the TDLS responder;

[0173] (3) The TDLS responder replies with a TDLS Discovery Response frame to the TDLS initiator via the direct link (DL).

[0174] Because TDLS discovery request frames are responded to over a direct link, when the TDLS initiator is a non-AP MLD, it sends a TDLS discovery request frame and enters EML mode before receiving a TDLS discovery response frame. However, the following situations 1 and 2 may occur:

[0175] Case 1: If the connection corresponding to the direct link of the non-AP MLD initiator (the corresponding connection is the working connection) is not an EML connection, the attached non-AP STA under this connection may be in Doze Mode;

[0176] In the second case, the connection corresponding to the non-AP MLD initiator is an EML connection, but the initial control frame sent by the AP MLD is not received. As shown in steps 401 and 402 in Figure 2, the connection corresponding to the non-AP MLD initiator is an EML connection. The non-AP STA enters the active state (Active Mde) or awake state (Awake Mode), enters the listening operation and receives the initial control frame sent by the AP MLD. However, if the initial control frame sent by the AP MLD is not received, it cannot enter the working state and cannot receive the TDLS discovery response frame replied by the TDLS responder.

[0177] The above two situations will cause the TDLS initiator to be unable to receive the TDLS discovery request frame replied by the TDLS responder, causing the TDLS initiator to mistakenly determine that the TDLS responder does not exist, resulting in the inability to establish a TDLS connection. Therefore, in the embodiment of the present disclosure, in step 201, after the TDLS initiator sends the first enhanced multi-link (EML) operation mode notification frame to the access point device, step 202 is executed, and the access point device executes step 203.

[0178] Specifically, in Figures 2 and 3, AP MLDs include AP1 and AP2; non-AP MLD1 is the TDLS initiator and includes STA11 and STA12; non-AP MLD2 is the TDLS responder and includes STA21 and STA22. T1 represents the EML Transition Timeout, Ta represents the EML Transition Timeout moment (time point), T2 represents the EML Transition Delay moment (time point), and Tb represents the EML Transition Delay moment (time point).

[0179] FIG2 illustrates scenario 1. In step 201, the TDLS initiator sends a first enhanced multi-link (EML) operation mode notification frame to the access point device.

[0180] Step 202: before receiving the second EML operation mode notification frame replied by the access point device (AP MLD), sending a TDLS discovery request frame to the access point device;

[0181] Step 203: The access point device forwards the TDLS discovery request frame to the TDLS responder.

[0182] Step 204: The TDLS responder replies a TDLS discovery response frame to the TDLS initiator via the direct link.

[0183] Step 205: The access point device sends a second EML operation mode notification frame to the TDLS initiator.

[0184] In this way, before completing the EML operation mode notification process (i.e., before step 205), the TDLS initiator has already sent a TDLS discovery request frame to the TDLS responder, so that if a TDLS responder exists, the TDLS responder replies with a TDLS discovery response frame to the TDLS initiator, i.e., the TDLS discovery response frame is replied before the TDLS initiator enters the EML operation mode; so that the TDLS initiator can effectively discover the TDLS responder and establish a TDLS connection before entering the EML operation mode.

[0185] Thus, for the aforementioned situation 1, if the connection corresponding to the direct link of the TDLS initiator is not an EML connection, the affiliated non-AP STA under the connection may enter the Doze Mode state after the TDLS initiator enters the EML operation mode; and in step 204, the TDLS responder has already replied to the TDLS initiator with a TDLS discovery response frame through the direct link. Therefore, the TDLS initiator can receive the TDLS discovery request frame, thereby avoiding the TDLS initiator from mistakenly judging that the TDLS responder does not exist.

[0186] For the aforementioned second scenario, the connection corresponding to the non-AP MLD initiator is an EML connection. After the TDLS initiator enters the EML operation mode, STA21 or STA22 enters the listening operation mode and receives the initial control frame sent by the AP MLD. Even if the initial control frame sent by the AP MLD is not received, the TDLS initiator will not mistakenly determine that the TDLS responder does not exist because the TDLS discovery response frame replied by the TDLS responder has been received.

[0187] Figure 3 illustrates scenario 2, where:

[0188] Step 301: The TDLS initiator sends a first enhanced multi-link (EML) operation mode notification frame to the access point device.

[0189] Step 302: before the EML conversion timeout (ie, time Ta) arrives, a TDLS discovery request frame is sent to the access point device.

[0190] Step 303: The access point device forwards the TDLS discovery request frame to the TDLS responder.

[0191] Step 304: The TDLS responder replies a TDLS discovery response frame to the TDLS initiator via the direct link.

[0192] When the EML conversion timeout period is reached, the TDLS initiator may enter the EML operation mode.

[0193] In this way, before the EML conversion timeout (i.e., Ta moment) arrives, the TDLS initiator has already sent a TDLS discovery request frame to the TDLS responder, so that if a TDLS responder exists, the TDLS responder replies with a TDLS discovery response frame to the TDLS initiator, that is, the TDLS discovery response frame is replied before the EML conversion timeout and before the TDLS initiator enters the EML operation mode; so that the TDLS initiator can effectively discover the TDLS responder and establish a TDLS connection before entering the EML operation mode.

[0194] Thus, for the aforementioned situation 1, if the connection corresponding to the direct link of the TDLS initiator is not an EML connection, the attached non-AP STA under the connection may enter the Doze Mode state after the TDLS initiator enters the EML operation mode; and in step 304, the TDLS responder has already replied to the TDLS initiator with a TDLS discovery response frame through the direct link. Therefore, the TDLS initiator can receive the TDLS discovery request frame, thereby avoiding the TDLS initiator from mistakenly judging that the TDLS responder does not exist.

[0195] For the aforementioned situation 2, the connection corresponding to the TDLS initiator is an EML connection. After the TDLS initiator enters the EML operation mode, STA21 or STA22 enters the listening operation and receives the initial control frame mode sent by the AP MLD. Even if the initial control frame sent by the AP MLD is not received, the TDLS initiator will not mistakenly judge that the TDLS responder does not exist because the TDLS discovery response frame replied by the TDLS responder has been received.

[0196] In the disclosed embodiment, the TDLS initiator sends a TDLS discovery request frame to the TDLS responder via the access point device before receiving the second EML operation mode notification frame from the access point device, or before the EML transition timeout expires. This allows the TDLS responder to reply with a TDLS discovery response frame before the TDLS initiator enters the EML operation mode. This allows the TDLS initiator to effectively discover the TDLS responder and establish a TDLS connection before entering the EML operation mode, improving the TDLS discovery process and enhancing the accuracy and efficiency of TDLS link establishment.

[0197] In some embodiments, the TDLS discovery request frame includes at least one of the following:

[0198] The TDLS responder sends a response timeout for the TDLS discovery response frame;

[0199] The EML operation mode information of the TDLS initiator, wherein the EML operation mode identifier is: whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

[0200] Among them, the TDLS discovery request frame carries the response timeout time for the TDLS responder to send the TDLS discovery response frame, and the response timeout time indicates that the TDLS responder replies to the TDLS discovery response frame within this time, so that the TDLS initiator effectively discovers the TDLS responder; optionally, the response timeout time may be before the EML conversion timeout time arrives, or before the access point device replies to the second EML operation mode notification frame.

[0201] The TDLS discovery request frame may also carry EML operation mode information of the TDLS initiator, which is used to identify whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

[0202] In some embodiments, the TDLS discovery request frame includes a TDLS Multi-Link element;

[0203] The Multi-Link Control field of the TDLS Multi-Link element includes the Presence Bitmap subfield;

[0204] The Presence Bitmap subfield includes a response timeout presence flag bit; the response timeout presence flag bit identifies whether the Common Info field of the TDLS Multi-Link element includes a TDLS discovery response timeout subfield; the TDLS discovery response timeout subfield is used to carry the response timeout period.

[0205] For example, when the response timeout existence flag is set to 1, it indicates that the TDLS discovery request frame should include the response timeout time, that is, the TDLS discovery response timeout subfield is used to carry the response timeout time; when the response timeout existence flag is set to 0, it indicates that the TDLS discovery request frame should not include the response timeout time.

[0206] In some embodiments, the response timeout time is before the EML conversion timeout time; or, the response timeout time is after a SIFS time after the EML conversion delay time.

[0207] Among them, the TDLS responder replies to the TDLS discovery response frame before the EML conversion timeout time, so that the TDLS initiator can effectively discover the TDLS responder and establish a TDLS connection before entering the EML operation mode; it can also reply to the TDLS discovery response frame after a SIFS time after the EML conversion delay time. For example, after a SIFS time after the EML conversion delay time, the TDLS initiator that has not entered the EML operation mode will no longer enter the EML operation mode and can receive the TDLS discovery response frame.

[0208] In some embodiments, the TDLS discovery request frame includes the EML operation mode information;

[0209] The Common Info field of the TDLS Multi-Link element includes an EML Control field, and the EML Control field carries the EML operation mode information.

[0210] After receiving the TDLS discovery request frame, the access point device forwards the TDLS discovery request frame to the TDLS responder.

[0211] Based on the received TDLS discovery request frame, the TDLS discovery request frame sent to the TDLS responder may further include EML operation mode information.

[0212] Optionally, in the TDLS Discovery Request frame, the TDLS Multi-Link element should include, but not be limited to, the following: a Multi-Link Control field, including a Presence Bitmap subfield; the Presence Bitmap subfield including an EML operation mode information presence identification field. When the EML operation mode information presence identification field is set to 1, the Common Info field of the TDLS Multi-Link element includes an EML Control field, which is used to identify the EML operation mode information (EML status information) of the TDLS initiator.

[0213] In some embodiments, as shown in FIG4 , after step 203 or step 303 , the access point device further performs step 401 or step 402 :

[0214] Step 401: Before the EML conversion timeout expires, the access point device does not reply to the TDLS initiator with the second EML operation mode notification frame from the moment it forwards the TDLS discovery request frame to the TDLS responder until the response timeout expires.

[0215] Among them, the response timeout period is before the EML conversion timeout period arrives, and the access point device may not reply to the TDLS initiator with the second EML operation mode notification frame from the moment of step 203 or step 303 to the arrival of the response timeout period, thereby avoiding the TDLS initiator entering the EML operation mode before the TDLS responder replies to the TDLS discovery response frame.

[0216] Step 402: After the response timeout is one SIFS time after the EML conversion delay time, the access point device replies to or does not reply to the second EML operation mode notification frame to the TDLS initiator from the moment the TDLS discovery request frame is forwarded to the TDLS responder until the EML conversion timeout expires.

[0217] Among them, the response timeout time is one SIFS time after the EML conversion delay time. From the moment of step 203 or step 303 of the access point device to the arrival of the EML conversion timeout time, it can reply to or not reply to the second EML operation mode notification frame to the TDLS initiator, without affecting the DLS responder sending the TDLS discovery response frame.

[0218] In some embodiments, as shown in FIG4 , for step 401 , the TDLS initiator performs step 403 or step 404 :

[0219] In step 403, the TDLS initiator receives a TDLS discovery response frame within the response timeout period; and before the response timeout period reaches the EML conversion timeout period, the TDLS initiator does not receive the second EML operation mode notification frame. When the EML conversion timeout period reaches the EML conversion timeout period, the TDLS initiator enters the EML operation mode according to the parameter information of the first EML operation mode notification frame.

[0220] The TDLS responder sends a TDLS discovery response frame to the TDLS initiator within the response timeout period. If the AP MLD does not send a second EML operation mode notification frame to the TDLS initiator between the expiration of the TDLS discovery response timeout period and the expiration of the EML transition timeout period, the TDLS initiator enters the corresponding EML operation mode according to the parameter information in the first EML operation mode notification frame after the EML transition timeout period expires.

[0221] Step 404: Within the response timeout, the TDLS initiator receives a TDLS discovery response frame; and before the response timeout expires to the EML conversion timeout, the TDLS initiator receives the second EML operation mode notification frame. Upon receiving the second EML operation mode notification frame, the TDLS initiator enters the EML operation mode according to the parameter information of the second EML operation mode notification frame.

[0222] The TDLS responder replies with a TDLS discovery response frame to the TDLS initiator within a response timeout period. Between the time the TDLS discovery response timeout period expires and the time the EML transition timeout period expires, the AP MLD replies with a second EML operation mode notification frame to the TDLS initiator. Upon receiving the second EML operation mode notification frame, the TDLS initiator enters EML operation mode according to the parameter information in the second EML operation mode notification frame.

[0223] In some embodiments, as shown in FIG4 , for step 402, the response timeout is one SIFS time after the EML conversion delay time, and the TDLS initiator does not receive the second EML operation mode notification frame from the time the access point device forwards the TDLS discovery request frame to the TDLS responder to the time the EML conversion timeout expires. The TDLS initiator then performs step 405 or step 406:

[0224] Step 405: Before the EML conversion timeout expires, the TDLS initiator receives a TDLS discovery response frame, and enters the EML operation mode according to the parameter information of the first EML operation mode notification frame when the EML conversion timeout expires.

[0225] Among them, the TDLS responder sends a TDLS discovery response frame to the TDLS initiator before the EML conversion timeout time arrives; after the EML conversion timeout time arrives, the TDLS initiator enters the EML operation mode according to the parameter information of the first EML operation mode notification frame it sends.

[0226] Step 406: Before the EML conversion timeout expires, the TDLS initiator does not receive a TDLS discovery response frame; and before the response timeout expires, the TDLS initiator receives the TDLS discovery response frame, and when the EML conversion timeout expires, enters the EML operation mode according to the parameter information of the first EML operation mode notification frame.

[0227] If the TDLS responder does not send a TDLS discovery response frame to the TDLS initiator before the EML conversion timeout expires, the TDLS responder will reply with a TDLS discovery response frame to the TDLS initiator after the data exchange of the other EMLSR link or EMLMR link receiving the initial control frame ends and before the response timeout expires. After the EML conversion timeout expires, the TDLS initiator enters the EML operation mode according to the parameter information in the first EML operation mode notification frame it sent.

[0228] In some embodiments, as shown in FIG4 , for step 402, the response timeout is one SIFS time after the EML conversion delay time, and the access point device forwards the TDLS discovery request frame to the TDLS responder before the EML conversion timeout expires. The TDLS initiator receives the second EML operation mode notification frame, and the TDLS initiator performs step 407 or step 408:

[0229] Step 407: Before receiving the second EML operation mode notification frame, the TDLS initiator receives a TDLS discovery response frame sent by the TDLS responder. When the TDLS initiator receives the second EML operation mode notification frame, it enters the EML operation mode according to the parameter information of the second EML operation mode notification frame.

[0230] Among them, before the AP MLD replies to the TDLS initiator with the second EML operation mode notification frame, the TDLS responder sends a TDLS discovery response frame to the TDLS initiator; after receiving the second EML operation mode notification frame replied by the AP MLD, the TDLS initiator enters the EML operation mode according to the parameter information of the received second EML operation mode notification frame.

[0231] Step 408: Before receiving the second EML operation mode notification frame, the TDLS initiator has not received the TDLS discovery response frame sent by the TDLS responder, and has received the TDLS discovery response frame before the response timeout period expires. Then, when the TDLS initiator receives the second EML operation mode notification frame, it enters the EML operation mode according to the parameter information of the second EML operation mode notification frame.

[0232] Among them, before the AP MLD replies to the TDLS initiator with the second EML operation mode notification frame, the TDLS responder does not send a TDLS discovery response frame to the TDLS initiator; then the TDLS responder should reply to the TDLS initiator with a TDLS discovery response frame after the data exchange of other EMLSR links or EMLMR links receiving the initial control frame is completed and before the response timeout period expires; after receiving the second EML operation mode notification frame replied by the AP MLD, the TDLS initiator enters the corresponding EML operation mode according to the information carried in the received EML operation mode notification frame.

[0233] In some embodiments, the method further comprises:

[0234] If the TDLS initiator does not receive a TDLS discovery response frame sent by the TDLS responder within the response timeout period, it determines that the TDLS responder is not found.

[0235] If the TDLS initiator does not receive the TDLS discovery response frame sent by the TDLS responder within the response timeout period (TDLS discovery timeout period), it indicates that the TDLS responder is not found.

[0236] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0237] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0238] In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.

[0239] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0240] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0241] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0242] The TDLS communication negotiation method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 201 can be implemented as an independent embodiment, step 202 can be implemented as an independent embodiment, step 203 can be implemented as an independent embodiment, step 204 can be implemented as an independent embodiment, step 205 can be implemented as an independent embodiment, step 301 can be implemented as an independent embodiment, step 302 can be implemented as an independent embodiment, step 303 can be implemented as an independent embodiment, step 304 can be implemented as an independent embodiment, and steps 401 to 408 can each be implemented as an independent embodiment, but are not limited thereto.

[0243] The combination of step 201 and step 202 can be implemented as an independent embodiment, the combination of step 202 and step 203 can be implemented as an independent embodiment to implement step, the combination of 203 and step 204 can be implemented as an independent embodiment, the combination of step 301 and step 302 can be implemented as an independent embodiment, the combination of step 302 and step 303 can be implemented as an independent embodiment to implement step, the combination of 233 and step 304 can be implemented as an independent embodiment, the combination of step 401 and step 403 can be implemented as an independent embodiment, the combination of step 401 and step 404 can be implemented as an independent embodiment to implement step, the combination of 402 and step 405 can be implemented as an independent embodiment, the combination of step 402 and step 406 can be implemented as an independent embodiment, the combination of step 402 and step 407 can be implemented as an independent embodiment to implement step, and the combination of step 402 and step 408 can be implemented as an independent embodiment, but are not limited thereto.

[0244] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 to FIG. 4 .

[0245] FIG5 is a flowchart of a TDLS communication negotiation method according to an embodiment of the present disclosure.

[0246] As shown in FIG5 , the above method can be applied to a TDLS initiator. The above method includes:

[0247] Step 501: The TDLS initiator sends a first enhanced multi-link (EML) operation mode notification frame to an access point device.

[0248] Step 502: before receiving the second EML operation mode notification frame replied by the access point device, or before the EML conversion timeout period expires, sending a TDLS discovery request frame to the TDLS responder through the access point device.

[0249] Optionally, in the embodiment of the present disclosure, the TDLS discovery request frame includes at least one of the following:

[0250] The TDLS responder sends a response timeout for the TDLS discovery response frame;

[0251] The EML operation mode information of the TDLS initiator, wherein the EML operation mode identifier is: whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

[0252] Optionally, in an embodiment of the present disclosure, the TDLS discovery request frame includes a TDLS Multi-Link element;

[0253] The Multi-Link Control field of the TDLS Multi-Link element includes the Presence Bitmap subfield;

[0254] The Presence Bitmap subfield includes a response timeout presence flag bit; the response timeout presence flag bit identifies whether the Common Info field of the TDLS Multi-Link element includes a TDLS discovery response timeout subfield; the TDLS discovery response timeout subfield is used to carry the response timeout period.

[0255] Optionally, in an embodiment of the present disclosure, the response timeout time is before the EML conversion timeout time; or, the response timeout time is after a SIFS time after the EML conversion delay time.

[0256] Optionally, in the embodiment of the present disclosure, the response timeout period is before the EML conversion timeout period expires, and the method further includes:

[0257] Step 503: The TDLS initiator does not receive a TDLS discovery response frame within the response timeout period; and the TDLS initiator does not receive a second EML operation mode notification frame before the EML conversion timeout period expires. The TDLS initiator enters the EML operation mode according to the parameter information of the first EML operation mode notification frame when the EML conversion timeout period expires.

[0258] or

[0259] Step 504: Within the response timeout, the TDLS initiator receives a TDLS discovery response frame; and before the response timeout period reaches the EML conversion timeout period, the TDLS initiator receives the second EML operation mode notification frame. Upon receiving the second EML operation mode notification frame, the TDLS initiator enters the EML operation mode according to the parameter information of the second EML operation mode notification frame.

[0260] Optionally, in an embodiment of the present disclosure, the response timeout is one SIFS time after the EML conversion delay time, and the TDLS initiator does not receive the second EML operation mode notification frame from the time the access point device forwards the TDLS discovery request frame to the TDLS responder to the time the EML conversion timeout expires. The method further includes:

[0261] Step 505: Before the EML conversion timeout expires, the TDLS initiator receives a TDLS discovery response frame, and when the EML conversion timeout expires, enters the EML operation mode according to the parameter information of the first EML operation mode notification frame;

[0262] or

[0263] Step 506: Before the EML conversion timeout expires, the TDLS initiator does not receive a TDLS discovery response frame; and before the response timeout expires, the TDLS initiator receives the TDLS discovery response frame, and when the EML conversion timeout expires, enters the EML operation mode according to the parameter information of the first EML operation mode notification frame.

[0264] Optionally, in an embodiment of the present disclosure, the response timeout is one SIFS time after the EML conversion delay time, and the TDLS initiator receives the second EML operation mode notification frame from the time the access point device forwards the TDLS discovery request frame to the TDLS responder to the time the EML conversion timeout expires. The method further includes:

[0265] Step 507: Before receiving the second EML operation mode notification frame, the TDLS initiator receives a TDLS discovery response frame sent by the TDLS responder. When the TDLS initiator receives the second EML operation mode notification frame, it enters the EML operation mode according to the parameter information of the second EML operation mode notification frame.

[0266] Step 508: Before receiving the second EML operation mode notification frame, the TDLS discovery response frame sent by the TDLS responder is not received, and the TDLS discovery response frame is received before the response timeout period expires. Then, when the TDLS initiator receives the second EML operation mode notification frame, it enters the EML operation mode according to the parameter information of the second EML operation mode notification frame.

[0267] Optionally, in the embodiment of the present disclosure, the method further includes:

[0268] Step 509: If the TDLS initiator does not receive a TDLS discovery response frame sent by the TDLS responder within the response timeout period, it determines that the TDLS responder is not found.

[0269] The TDLS communication negotiation method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 501 may be implemented as an independent embodiment, step 502 may be implemented as an independent embodiment, step 503 may be implemented as an independent embodiment, step 504 may be implemented as an independent embodiment, and steps 505 to 509 may each be implemented as an independent embodiment; the combination of step 501 and step 502 may be implemented as an independent embodiment, but is not limited thereto.

[0270] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0271] FIG6 is a second flowchart of the TDLS communication negotiation method according to an embodiment of the present disclosure.

[0272] As shown in FIG6 , the method may be applied to an access point device, and the method includes:

[0273] Step 601: The access point device receives a first enhanced multi-link (EML) operation mode notification frame sent by a TDLS initiator.

[0274] Step 602: Before replying a second EML operation mode notification frame to the TDLS initiator or before the EML conversion timeout expires, receive a TDLS discovery request frame sent by the TDLS initiator and forward the TDLS discovery request frame to the TDLS responder.

[0275] Optionally, in an embodiment of the present disclosure, the TDLS discovery request frame includes a TDLS Multi-Link element;

[0276] The Presence Bitmap subfield of the TDLS Multi-Link element includes: a TDLS initiator EML information presence identification field;

[0277] The TDLS initiator EML information presence identification field identifies whether the TDLS discovery request frame includes the EML operation mode information of the TDLS initiator;

[0278] The EML operation mode identifier indicates whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

[0279] Optionally, in an embodiment of the present disclosure, the TDLS discovery request frame includes the EML operation mode information;

[0280] The Common Info field of the TDLS Multi-Link element includes an EML Control field, and the EML Control field carries the EML operation mode information.

[0281] In conjunction with some embodiments of the second aspect, in some embodiments, the TDLS discovery request frame includes:

[0282] The TDLS responder sends a response timeout for the TDLS discovery response frame;

[0283] The response timeout time is before the EML conversion timeout time; or, the response timeout time is after a SIFS time after the EML conversion delay time.

[0284] Optionally, in the embodiment of the present disclosure, after forwarding the TDLS discovery request frame to the TDLS responder, the method further includes:

[0285] Step 603: Before the EML conversion timeout expires, the access point device does not reply with the second EML operation mode notification frame to the TDLS initiator from the moment it forwards the TDLS discovery request frame to the TDLS responder until the response timeout expires.

[0286] or

[0287] Step 604: After the response timeout is one SIFS time after the EML conversion delay time, the access point device replies to or does not reply to the second EML operation mode notification frame to the TDLS initiator from the moment the TDLS discovery request frame is forwarded to the TDLS responder until the EML conversion timeout expires.

[0288] The TDLS communication negotiation method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 601 may be implemented as an independent embodiment, step 602 may be implemented as an independent embodiment, step 603 may be implemented as an independent embodiment, and step 604 may be implemented as an independent embodiment; the combination of step 601 and step 602 may be implemented as an independent embodiment, the combination of step 602 and step 603 may be implemented as an independent embodiment, and the combination of step 602 and step 604 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0289] FIG7 is a third flowchart of a TDLS communication negotiation method according to an embodiment of the present disclosure.

[0290] As shown in FIG. 7 , the method may be applied to an access point device 102, and the method includes:

[0291] In step 701, the TDLS responder receives a TDLS discovery request frame forwarded by the access point device; wherein the TDLS discovery request frame is received by the access point device before replying a second EML operation mode notification frame to the TDLS initiator, or before the EML conversion timeout period expires, and is sent by the TDLS initiator and forwarded to the TDLS responder; the second EML operation mode notification frame is used to respond to the first enhanced multi-link EML operation mode notification frame sent by the TDLS initiator.

[0292] Optionally, in an embodiment of the present disclosure, the TDLS discovery request frame includes a TDLS Multi-Link element;

[0293] The Presence Bitmap subfield of the TDLS Multi-Link element includes: a TDLS initiator EML information presence identification field;

[0294] The TDLS initiator EML information presence identification field identifies whether the TDLS discovery request frame includes the EML operation mode information of the TDLS initiator;

[0295] The EML operation mode identifier indicates whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

[0296] Optionally, in an embodiment of the present disclosure, the TDLS discovery request frame includes the EML operation mode information;

[0297] The Common Info field of the TDLS Multi-Link element includes an EML Control field, and the EML Control field carries the EML operation mode information.

[0298] Optionally, in an embodiment of the present disclosure, the TDLS discovery request frame includes:

[0299] The TDLS responder sends a response timeout for the TDLS discovery response frame;

[0300] The response timeout time is before the EML conversion timeout time; or, the response timeout time is after a SIFS time after the EML conversion delay time.

[0301] Optionally, in an embodiment of the present disclosure, the response timeout period is before the EML conversion timeout period expires, and the access point device does not reply to the TDLS initiator with the second EML operation mode notification frame from the moment it forwards the TDLS discovery request frame to the TDLS responder until the response timeout period expires.

[0302] or

[0303] The response timeout is one SIFS time after the EML conversion delay time, and the access point device replies to or does not reply to the second EML operation mode notification frame to the TDLS initiator from the moment the TDLS discovery request frame is forwarded to the TDLS responder until the EML conversion timeout expires.

[0304] Optionally, in the embodiment of the present disclosure, the response timeout period is before the EML conversion timeout period expires, and the method further includes:

[0305] Step 702: Send a TDLS discovery response frame to the TDLS initiator within the response timeout period.

[0306] Optionally, in the embodiment of the present disclosure, the response timeout period is one SIFS period after the EML conversion delay period, and the method further includes:

[0307] Step 703: before the EML conversion timeout expires, send a TDLS discovery response frame to the TDLS initiator;

[0308] or

[0309] Step 704: Before the EML conversion timeout expires, no TDLS discovery response frame is sent to the TDLS initiator; and before the data exchange of other EMLSR links or EMLMR links that receive the initial control frame ends and before the response timeout expires, a TDLS discovery response frame is sent to the TDLS initiator.

[0310] The TDLS communication negotiation method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 701 may be implemented as an independent embodiment, step 702 may be implemented as an independent embodiment, and step 703 may be implemented as an independent embodiment; the combination of step 702 and step 703 may be implemented as an independent embodiment, and the combination of step 702 and step 704 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0311] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0312] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein 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 within the device or a memory 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), which realizes the functions of some or all of the above units or modules 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 rest by hardware circuits.

[0313] 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.

[0314] FIG8 is a schematic diagram of the structure of a TDLS initiator proposed in an embodiment of the present disclosure. As shown in FIG8 , the TDLS initiator 800 may include at least one of a first sending module 801 and a second sending module 802 .

[0315] In some embodiments, the above-mentioned first sending module 801 is used to send a first enhanced multi-link EML operation mode notification frame to the access point device; the second sending module 802 is used to send a TDLS discovery request frame to the TDLS responder through the access point device before receiving the second EML operation mode notification frame replied by the access point device, or before the EML conversion timeout time expires.

[0316] Optionally, the first sending module 801 is configured to execute at least one of the communication steps (e.g., step 201, step 301, step 501, but not limited thereto) performed by the TDLS initiator 101 in any of the above methods, which are not described in detail here. The sending module 802 is configured to execute at least one of the steps (e.g., step 202, step 302, step 502, but not limited thereto), which are not described in detail here.

[0317] FIG9 is a schematic diagram of the structure of an access point device according to an embodiment of the present disclosure. As shown in FIG9 , the access point device 900 may include: a first receiving module 901 and a forwarding module 902 .

[0318] In some embodiments, the first receiving module 901 is configured to receive a first enhanced multi-link (EML) operation mode notification frame sent by a TDLS initiator;

[0319] The forwarding module 902 is configured to receive a TDLS discovery request frame sent by the TDLS initiator and forward the TDLS discovery request frame to the TDLS responder before replying the second EML operation mode notification frame to the TDLS initiator or before the EML conversion timeout expires.

[0320] Optionally, the first receiving module 901 is used to execute at least one of the communication steps (for example, step 601, but not limited to this) performed by the access point device 102 in any of the above methods, and the forwarding module 902 is used to execute at least one of the communication steps (for example, step 203, step 303, step 602, but not limited to this) performed by the access point device 102 in any of the above methods, which are not repeated here.

[0321] FIG10 is a schematic diagram of the structure of a TDLS responder proposed in an embodiment of the present disclosure. As shown in FIG10 , the TDLS responder 1000 may include: a second receiving module 1001 .

[0322] In some embodiments, the second receiving module 1001 is configured to receive a TDLS discovery request frame forwarded by an access point device;

[0323] The TDLS discovery request frame is received by the access point device before replying the second EML operation mode notification frame to the TDLS initiator or before the EML conversion timeout expires, and is forwarded to the TDLS responder;

[0324] The second EML operation mode notification frame is used to respond to the first enhanced multi-link EML operation mode notification frame sent by the TDLS initiator.

[0325] Optionally, the first sending module 1001 is configured to execute at least one of the communication steps (such as step 701 , but not limited thereto) executed by the TDLS initiator 101 in any of the above methods, which will not be described in detail here.

[0326] Figure 11 is a schematic diagram of the structure of a terminal 1100 (e.g., user equipment) proposed in an embodiment of the present disclosure. Terminal 1100 can be a chip, chip system, or processor that supports a network device implementing any of the above methods, or a chip, chip system, or processor that supports a terminal implementing any of the above methods. Terminal 1100 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.

[0327] As shown in Figure 11, terminal 1100 includes one or more processors 1101. Processor 1101 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 communication devices (such as base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Terminal 1100 is used to perform any of the above methods.

[0328] In some embodiments, the terminal 1100 further includes one or more memories 1102 for storing instructions. Optionally, all or part of the memories 1102 may be located outside the terminal 1100.

[0329] In some embodiments, terminal 1100 also includes one or more transceivers 1104 . When the terminal 1100 includes one or more transceivers 1104, the transceiver 1104 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step 201, step 202, step 203, step 204, step 205, step 301, step 302, step 303, step 304, step 402, step 501, step 502, step 601, step 602, step 604, step 701, step 702, step 703, step 704, but not limited to these), and the processor 1101 executes at least one of the other steps (for example, step 401, step 403, step 404, step 405, step 406, step 407, step 408, step 503, step 504, step 505, step 506, step 507, step 508, step 509, step 603, but not limited to these).

[0330] 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.

[0331] In some embodiments, terminal 1100 may include one or more interface circuits 1103. Optionally, interface circuit 1103 is connected to memory 1102. Interface circuit 1103 may be configured to receive signals from memory 1102 or other devices, and may be configured to send signals to memory 1102 or other devices. For example, interface circuit 1103 may read instructions stored in memory 1102 and send the instructions to processor 1101.

[0332] The terminal 1100 described in the above embodiment may be a communication device such as a user device, but the scope of the terminal 1100 described in the present disclosure is not limited thereto, and the structure of the terminal 1100 may not be limited by FIG. 11 . The communication device may be an independent device or may be part of a larger device. For example, the 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 or 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.

[0333] FIG12 is a schematic diagram of the structure of a chip 1200 according to an embodiment of the present disclosure. In the case where the terminal 1100 may be a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 1200 shown in FIG12 , but the present disclosure is not limited thereto.

[0334] The chip 1200 includes one or more processors 1201 , and the chip 1200 is configured to execute any of the above methods.

[0335] In some embodiments, chip 1200 further includes one or more 1203. Optionally, interface circuit 1203 is connected to memory 1202. Interface circuit 1203 can be used to receive signals from memory 1202 or other devices, and interface circuit 1203 can be used to send signals to memory 1202 or other devices. For example, interface circuit 1203 can read instructions stored in memory 1202 and send the instructions to processor 1201.

[0336] In some embodiments, the interface circuit 1203 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step 201, step 202, step 203, step 204, step 205, step 301, step 302, step 303, step 304, step 402, step 501, step 502, step 601, step 602, step 604, step 701, step 702, step 703, step 704, but not limited to these), and the processor 1201 executes at least one of the other steps (for example, step 401, step 403, step 404, step 405, step 406, step 407, step 408, step 503, step 504, step 505, step 506, step 507, step 508, step 509, step 603, but not limited to these).

[0337] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0338] In some embodiments, chip 1200 further includes one or more memories 1202 for storing instructions. Alternatively, all or part of memory 1202 may be external to chip 1200.

[0339] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the terminal 1100, the terminal 1100 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 transient storage medium.

[0340] The present disclosure also provides a program product, which, when executed by the terminal 1100, enables the terminal 1100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0341] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A TDLS communication negotiation method, characterized in that: The method comprises: The TDLS initiator sends a first enhanced multi-link EML operation mode notification frame to the access point device; Before receiving the second EML operation mode notification frame replied by the access point device, or before the EML conversion timeout period arrives, a TDLS discovery request frame is sent to the TDLS responder through the access point device.

2. The TDLS communication negotiation method according to claim 1, characterized in that: The TDLS discovery request frame includes at least one of the following: The TDLS responder sends a response timeout for a TDLS discovery response frame; The EML operation mode information of the TDLS initiator, the EML operation mode identifier: whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

3. The TDLS communication negotiation method according to claim 2, characterized in that: The TDLS discovery request frame includes a TDLS Multi-Link element; The Multi-Link Control field of the TDLS Multi-Link element includes a Presence Bitmap subfield; The Presence Bitmap subfield includes a response timeout presence flag bit; the response timeout presence flag bit identifies whether the Common Info field of the TDLS Multi-Link element includes a TDLS discovery response timeout subfield; the TDLS discovery response timeout subfield is used to carry the response timeout period.

4. The TDLS communication negotiation method according to claim 2, characterized in that: The response timeout time is before the EML conversion timeout time; or, the response timeout time is after a SIFS time after the EML conversion delay time.

5. The TDLS communication negotiation method according to claim 2, characterized in that: The response timeout period is before the EML conversion timeout period arrives, and the method further comprises: The TDLS initiator receives a TDLS discovery response frame within the response timeout period; and before the response timeout period reaches the EML conversion timeout period, the TDLS initiator does not receive the second EML operation mode notification frame, and the TDLS initiator enters the EML operation mode according to the parameter information of the first EML operation mode notification frame at the time when the EML conversion timeout period reaches the EML operation mode; or Within the response timeout, the TDLS initiator receives a TDLS discovery response frame; and before the response timeout to the EML conversion timeout arrives, the TDLS initiator receives the second EML operation mode notification frame. When the TDLS initiator receives the second EML operation mode notification frame, the TDLS initiator enters the EML operation mode according to the parameter information of the second EML operation mode notification frame.

6. The TDLS communication negotiation method according to claim 2, characterized in that: The response timeout time is a SIFS time after the EML conversion delay time, and the TDLS initiator does not receive the second EML operation mode notification frame from the time when the access point device forwards the TDLS discovery request frame to the TDLS responder to the time when the EML conversion timeout time arrives, and the method further includes: Before the EML conversion timeout period arrives, the TDLS initiator receives a TDLS discovery response frame, and at the time when the EML conversion timeout period arrives, enters the EML operation mode according to the parameter information of the first EML operation mode notification frame; or Before the EML conversion timeout period arrives, the TDLS initiator does not receive the TDLS discovery response frame; and before the response timeout period arrives, the TDLS initiator receives the TDLS discovery response frame, and when the EML conversion timeout period arrives, enters the EML operation mode according to the parameter information of the first EML operation mode notification frame.

7. The TDLS communication negotiation method according to claim 2, characterized in that: The response timeout time is a SIFS time after the EML conversion delay time, the access point device forwards the TDLS discovery request frame to the TDLS responder before the EML conversion timeout time arrives, and the TDLS initiator receives the second EML operation mode notification frame, and the method further includes: Before receiving the second EML operation mode notification frame, the TDLS discovery response frame sent by the TDLS responder is received, and when the TDLS initiator receives the second EML operation mode notification frame, it enters the EML operation mode according to the parameter information of the second EML operation mode notification frame; Before receiving the second EML operation mode notification frame, the TDLS discovery response sent by the TDLS responder is not received frame, and receives the TDLS discovery response frame before the response timeout period expires, then when the TDLS initiator receives the second EML operation mode notification frame, it enters the EML operation mode according to the parameter information of the second EML operation mode notification frame.

8. The TDLS communication negotiation method according to any one of claims 2 to 7, characterized in that: If the TDLS initiator does not receive a TDLS discovery response frame sent by the TDLS responder within the response timeout period, it determines that the TDLS responder is not found.

9. A TDLS communication negotiation method, characterized in that: The method comprises: The access point device receives a first enhanced multi-link EML operation mode notification frame sent by the TDLS initiator; Before replying the second EML operation mode notification frame to the TDLS initiator, or before the EML conversion timeout period arrives, receiving the TDLS discovery request frame sent by the TDLS initiator, and forwarding the TDLS discovery request frame to the TDLS responder.

10. The TDLS communication negotiation method according to claim 9, characterized in that: The TDLS discovery request frame includes a TDLS Multi-Link element; The Presence Bitmap subfield of the TDLS Multi-Link element includes: a TDLS initiator EML information presence identification field; The TDLS initiator EML information existence identification field identifies whether the TDLS discovery request frame includes the EML operation mode information of the TDLS initiator; The EML operation mode identifier: whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

11. The TDLS communication negotiation method according to claim 10, characterized in that: The TDLS discovery request frame includes the EML operation mode information; The Common Info field of the TDLS Multi-Link element includes an EML Control field, and the EML Control field carries the EML operation mode information.

12. The TDLS communication negotiation method according to claim 9, characterized in that: The TDLS discovery request frame includes: The TDLS responder sends a response timeout for a TDLS discovery response frame; The response timeout time is before the EML conversion timeout time; or, the response timeout time is after a SIFS time after the EML conversion delay time.

13. The TDLS communication negotiation method according to claim 12, characterized in that: After the access point device forwards the TDLS discovery request frame to the TDLS responder, the method further includes: The response timeout period is before the EML conversion timeout period arrives, and the access point device does not reply the second EML operation mode notification frame to the TDLS initiator from the moment when the access point device forwards the TDLS discovery request frame to the TDLS responder until the response timeout period arrives; or The response timeout is a SIFS time after the EML conversion delay time. The access point device replies or does not reply to the second EML operation mode notification frame to the TDLS initiator from the moment the TDLS discovery request frame is forwarded to the TDLS responder until the EML conversion timeout arrives.

14. A TDLS communication negotiation method, characterized in that: The method comprises: The TDLS responder receives the TDLS discovery request frame forwarded by the access point device; The TDLS discovery request frame is received by the access point device before replying the second EML operation mode notification frame to the TDLS initiator or before the EML conversion timeout time arrives, and forwarded to the TDLS responder; The second EML operation mode notification frame is used to respond to the first enhanced multi-link EML operation mode notification frame sent by the TDLS initiator.

15. The TDLS communication negotiation method according to claim 14, characterized in that: The TDLS discovery request frame includes a TDLS Multi-Link element; The Presence Bitmap subfield of the TDLS Multi-Link element includes: a TDLS initiator EML information presence identification field; The TDLS initiator EML information existence identification field identifies whether the TDLS discovery request frame includes the EML operation mode information of the TDLS initiator; The EML operation mode identifier: whether the connection corresponding to the direct link of the TDLS initiator is an EML connection.

16. The TDLS communication negotiation method according to claim 15, characterized in that: The TDLS discovery request frame includes the EML operation mode information; The Common Info field of the TDLS Multi-Link element includes an EML Control field, and the EML Control field carries the EML operation mode information.

17. The TDLS communication negotiation method according to claim 14, characterized in that: The TDLS discovery request frame includes: The TDLS responder sends a response timeout for a TDLS discovery response frame; The response timeout time is before the EML conversion timeout time; or, the response timeout time is after a SIFS time after the EML conversion delay time.

18. The TDLS communication negotiation method according to claim 17, characterized in that: The response timeout period is before the EML conversion timeout period arrives, and the access point device does not reply the second EML operation mode notification frame to the TDLS initiator from the moment when the access point device forwards the TDLS discovery request frame to the TDLS responder until the response timeout period arrives; or The response timeout is a SIFS time after the EML conversion delay time. The access point device replies or does not reply to the second EML operation mode notification frame to the TDLS initiator from the moment the TDLS discovery request frame is forwarded to the TDLS responder until the EML conversion timeout arrives.

19. The TDLS communication negotiation method according to claim 17, characterized in that: The response timeout period is before the EML conversion timeout period arrives, and the method further comprises: Sending a TDLS discovery response frame to the TDLS initiator within the response timeout period.

20. The TDLS communication negotiation method according to claim 17, characterized in that: The response timeout time is after a SIFS time after the EML conversion delay time, and the method further includes: Before the EML conversion timeout period arrives, sending a TDLS discovery response frame to the TDLS initiator; or Before the EML conversion timeout expires, no TDLS discovery response frame is sent to the TDLS initiator; and before the data exchange of other EMLSR links or EMLMR links that receive the initial control frame ends and before the response timeout expires, a TDLS discovery response frame is sent to the TDLS initiator.

21. A TDLS initiator, characterized in that: The TDLS initiator includes: A first sending module, configured to send a first enhanced multi-link (EML) operation mode notification frame to an access point device; The second sending module is used to send a TDLS discovery request frame to the TDLS responder through the access point device before receiving the second EML operation mode notification frame replied by the access point device or before the EML conversion timeout period arrives.

22. An access point device, characterized in that: The access point device comprises: A first receiving module, configured to receive a first enhanced multi-link EML operation mode notification frame sent by a TDLS initiator; The forwarding module is used to receive the TDLS discovery request frame sent by the TDLS initiator before replying the second EML operation mode notification frame to the TDLS initiator or before the EML conversion timeout period arrives, and forward the TDLS discovery request frame to the TDLS responder.

23. A TDLS responder, characterized in that: The TDLS responder includes: A second receiving module is used to receive a TDLS discovery request frame forwarded by an access point device; The TDLS discovery request frame is received by the access point device before replying the second EML operation mode notification frame to the TDLS initiator or before the EML conversion timeout time arrives, and forwarded to the TDLS responder; The second EML operation mode notification frame is used to respond to the first enhanced multi-link EML operation mode notification frame sent by the TDLS initiator.

24. A TDLS initiator, characterized in that: include: one or more processors; The TDLS initiator is used to execute the TDLS communication negotiation method according to any one of claims 1 to 8.

25. An access point device, characterized in that: include: one or more processors; The access point device is used to execute the TDLS communication negotiation method according to any one of claims 9 to 13.

26. A TDLS responder, characterized in that: include: one or more processors; The TDLS responder is used to execute the TDLS communication negotiation method according to any one of claims 14 to 20.

27. A communication system, characterized in that: It includes a TDLS initiator, an access point device, and a TDLS responder; wherein the TDLS initiator is configured to implement the TDLS communication negotiation method described in any one of claims 1 to 8, the access point device is configured to implement the TDLS communication negotiation method described in any one of claims 9 to 13, and the TDLS responder is configured to implement the TDLS communication negotiation method described in any one of claims 14 to 20.

28. A storage medium storing instructions, characterized in that: When the instruction is executed on the communication device, the communication device executes the TDLS communication negotiation method as claimed in any one of claims 1 to 8, or executes the TDLS communication negotiation method as claimed in any one of claims 9 to 13, or executes the TDLS communication negotiation method as claimed in any one of claims 14 to 20.

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