Block acknowledgement feedback mechanism negotiation method, communication device and communication system

Abstract

A block acknowledgement (BA) feedback mechanism negotiation method, a communication device and a communication system. The method is applied to an initiating end for establishing a BA feedback mechanism, and comprises the following steps: determining a first wireless frame; wherein the first wireless frame comprises first identification information, the first identification information identifies timeout information of a block acknowledgement (BA) frame, and the timeout information identifies timeout information of a BA feedback mechanism applied to a plurality of physical access point devices (APs) or multi-link access point devices (AP MLDs); and sending the first wireless frame, so that a BA feedback mechanism can be applied among a plurality of physical APs or AP MLDs, the spectrum utilization rate and the data transmission efficiency are improved, and the BA feedback mechanism can adapt to UHR requirements.

Description

Block confirmation feedback mechanism negotiation method, communication equipment and communication system Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a block acknowledgment (BA) feedback mechanism negotiation method, communication equipment, and communication system. Background Art

[0002] Currently, Wi-Fi technology research focuses on Ultra High Reliability (UHR), with the goal of improving the reliability of Wireless Local Area Networks (WLAN) connections, reducing latency, improving manageability, increasing throughput at different signal-to-noise ratio (SNR) levels, and reducing device-level power consumption.

[0003] To improve data transmission efficiency, a BA feedback mechanism has been proposed. This mechanism sends a BA signal to the receiver after multiple consecutive data frames are transmitted, indicating the reception status of the consecutive frames. To adapt the BA feedback mechanism to UHR requirements, the signaling associated with the BA feedback mechanism needs to be enhanced.

[0004] Summary of the Invention

[0005] The embodiments of the present disclosure provide a BA feedback mechanism negotiation method, a communication device, and a communication system, so that the BA feedback mechanism adapts to UHR requirements.

[0006] In a first aspect, an embodiment of the present disclosure provides a BA feedback mechanism negotiation method, which is applied to an initiator of establishing a BA feedback mechanism. The method includes:

[0007] Determine a first radio frame; wherein the first radio frame includes first identification information, the first identification information identifies timeout information of a block confirmation BA frame, the timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical access point devices AP or AP MLD;

[0008] Send the first message frame.

[0009] In a second aspect, an embodiment of the present disclosure further provides a BA feedback mechanism negotiation method, which is applied to a responding end for establishing a BA feedback mechanism. The method includes:

[0010] Receive a first radio frame; wherein the first radio frame includes first identification information, the first identification information identifies timeout information of a BA frame, and the timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical APs or AP MLDs.

[0011] In a third aspect, an embodiment of the present disclosure further provides a communication device, which is an initiator for establishing a BA feedback mechanism, including:

[0012] A determination module is configured to determine a first radio frame; wherein the first radio frame includes first identification information, the first identification information identifies timeout information of a BA frame, and the timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical APs or AP MLDs;

[0013] The sending module is configured to send a first wireless frame.

[0014] In a fourth aspect, an embodiment of the present disclosure further provides a communication device, which is a responding end for establishing a BA feedback mechanism, including:

[0015] The receiving module is configured to receive a first radio frame, wherein the first radio frame includes first identification information, the first identification information identifies timeout information of a BA frame, and the timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical APs or AP MLDs.

[0016] In a fifth aspect, an embodiment of the present disclosure further provides a communication device, which is an initiator for establishing a BA feedback mechanism, including:

[0017] one or more processors;

[0018] The communication device is used to implement the BA feedback mechanism negotiation method in the first aspect of the embodiment of the present disclosure.

[0019] In a sixth aspect, an embodiment of the present disclosure further provides a communication device, which is a responding end for establishing a BA feedback mechanism, including:

[0020] one or more processors;

[0021] The communication device is used to implement the BA feedback mechanism negotiation method in the second aspect of the embodiment of the present disclosure.

[0022] In the seventh aspect, an embodiment of the present disclosure also provides a communication system, including a first communication device and a second communication device; wherein the above-mentioned first communication device is an initiator for establishing a BA feedback mechanism, and is configured to execute an optional implementation method as in the first aspect, and the above-mentioned second communication device is a responder for establishing a BA feedback mechanism, and is configured to execute an optional implementation method as in the second aspect.

[0023] In an eighth 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 optional implementation methods such as the first aspect, the second aspect, the third aspect, and the fourth aspect.

[0024] In the embodiment of the present disclosure, by defining the timeout information of the BA frame, and defining the timeout information of the BA frame as the timeout information of the BA feedback mechanism applied between multiple physical APs or AP MLDs, the BA feedback mechanism can be applied between multiple physical APs or AP MLDs, without the need to define the timeout information of the BA frame corresponding to each AP, thereby improving spectrum utilization and data transmission efficiency, and enabling the BA feedback mechanism to adapt to UHR requirements.

[0025] 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

[0026] 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.

[0027] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0028] FIG2 is an exemplary interaction diagram of a BA feedback mechanism negotiation method according to an embodiment of the present disclosure;

[0029] FIG3 is a flowchart of a BA feedback mechanism negotiation method according to an embodiment of the present disclosure;

[0030] FIG4 is a second flow chart of a BA feedback mechanism negotiation method according to an embodiment of the present disclosure;

[0031] FIG5 is a schematic diagram of a structure of a communication device according to an embodiment of the present disclosure;

[0032] FIG6 is a second structural diagram of a communication device proposed in an embodiment of the present disclosure;

[0033] FIG7 is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure;

[0034] FIG8 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] The embodiments of the present disclosure provide a BA feedback mechanism negotiation method, device, and system.

[0036] In a first aspect, embodiments of the present disclosure provide a BA feedback mechanism negotiation method, which is applied to an initiator of establishing a BA feedback mechanism. The method includes:

[0037] Determining a first radio frame; wherein the first radio frame includes first identification information, the first identification information identifying timeout information of a block acknowledgment (BA) frame, the timeout information identifying timeout information of a BA feedback mechanism applied between multiple physical access point devices (APs);

[0038] Send the first message frame.

[0039] In the above embodiment, by defining the timeout information of the BA frame, the timeout information of the BA frame is defined as the timeout information of the BA feedback mechanism applied between multiple physical APs or AP MLDs. This allows the BA feedback mechanism to be applied between multiple physical APs / AP MLDs. There is no need to define the timeout information of the BA frame corresponding to each AP, thereby improving spectrum utilization and data transmission efficiency, and enabling the BA feedback mechanism to adapt to UHR requirements.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the first identification information may be carried in a block acknowledgment frame timeout (Block ACK timeout) field of the first radio frame.

[0041] In the above embodiment, by defining the timeout information of the BA feedback mechanism applied to multiple physical APs or AP MLDs in the Block ACK timeout field of the first radio frame, the timeout information of the BA feedback mechanism applied to multiple physical APs or AP MLDs can be defined without adding a new field in the first radio frame, thereby improving the utilization of each field in the first radio frame.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the first wireless frame may further include second identification information, and the second identification information includes: time synchronization parameters between the first AP and the second AP after the station device (STA) switches from the first AP to the second AP.

[0043] In the above embodiment, by defining the time synchronization parameters between the first AP and the second AP in the first wireless frame, after the STA switches from the first AP to the second AP, the communication time between the STA and the second AP can be determined based on the time synchronization parameters and the above timeout information, thereby improving data transmission efficiency.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, the initiator of establishing the BA feedback mechanism is a STA or a non-AP MLD to which the STA is attached, and the second identification information includes: first time synchronization function (TSF) parameter information of the first AP or a first AP MLD to which the first AP is attached;

[0045] The initiator of establishing the BA feedback mechanism is the first AP or the first AP MLD, and the second identification information includes: the first TSF parameter information, or the offset between the first TSF parameter information and the second TSF parameter information;

[0046] The second TSF parameter information is: TSF parameter information of the second AP or the second AP MLD to which the second AP belongs.

[0047] In the above embodiment, by defining the time synchronization parameters between the first AP and the second AP according to the different initiators for establishing the BA feedback mechanism, the time synchronization parameters between the first AP and the second AP can be adaptively indicated, so that after the STA switches from the first AP to the second AP, the time can be kept consistent, avoiding the time deviation of the connection clock time before and after the switching, affecting the data transmission process, and improving the data transmission efficiency.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the above method may further include:

[0049] Determine a second radio frame; the second radio frame includes third identification information, where the third identification information includes a starting sequence number (SSN) of a data frame initiated by the initiator of the BA feedback mechanism to the responder of the BA feedback mechanism after the BA feedback mechanism is established;

[0050] A second radio frame is sent.

[0051] In the above embodiment, the starting sequence number of the data frame sent by the initiator of establishing the BA feedback mechanism to the responder of establishing the BA feedback mechanism is defined, which is used as a reference point for subsequent determination of the data frames transmitted between the initiator and the responder.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the above method may further include:

[0053] Determine a third radio frame; wherein the third radio frame includes fourth identification information, and the fourth identification information identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs;

[0054] A third radio frame is sent.

[0055] In the above embodiment, the fourth identification information in the third radio frame indicates whether the BA feedback mechanism is applied between multiple physical APs or AP MLDs, which facilitates directly determining whether the BA feedback mechanism is applied between multiple physical APs or AP MLDs involved in the current data transmission process based on the fourth identification information in the third radio frame.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, the fourth identification information includes:

[0057] A first identification field, which identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs.

[0058] or

[0059] The second identification field identifies whether the parameter information for establishing the initial association between the STA and the first AP includes identification information of the second AP or the second AP MLD to which the second AP is attached.

[0060] In the above embodiment, whether the BA feedback mechanism applies to multiple physical APs or AP MLDs can be indicated either explicitly (i.e., using the first identification field to identify whether the BA feedback mechanism applies to multiple physical APs or AP MLDs) or implicitly (i.e., using the second identification field to identify whether the parameter information for establishing the initial association between the STA and the first AP includes identification information of the second AP or the second AP MLD to which the second AP is affiliated).

[0061] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned first identification field is carried in an ultra-high reliability (Ultra-High Reliability, UHR) capability information element of the third radio frame.

[0062] In the above embodiment, by carrying the first identification field in the UHR capability information element of the third radio frame, whether the BA feedback mechanism is applied to multiple physical APs or AP MLDs can be defined without adding a new field in the third radio frame, thereby improving the utilization rate of each field in the third radio frame.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, the first radio frame is a block acknowledgement mechanism request (Add BA request) frame, and the second radio frame is a block acknowledgement request (BA request) frame;

[0064] The initiator is the STA or the non-AP MLD, and the third wireless frame includes one or more of the following: a probe request frame, an association request frame, or a reassociation request frame;

[0065] The initiator is the first AP or the first AP MLD, and the third wireless frame includes one or more of the following: a beacon frame, a probe response frame, an association request frame, or a reassociation response frame.

[0066] In the above embodiment, when the initiator is the STA or the non-AP MLD, the third radio frame is set to include one or more of the following: a probe request frame, an association request frame, or a reassociation request frame; and when the initiator is the first AP or the first AP MLD, the third radio frame is set to include one or more of the following: a beacon frame, a probe response frame, an association request frame, or a reassociation response frame. The third radio frame carries fourth identification information that identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs. This allows, during the process of establishing an initial association between the initiator and the responder of the BA feedback mechanism, to identify whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs.

[0067] The first identification information of the Add BA request frame identifies the timeout information of the BA feedback mechanism applied to multiple physical APs or AP MLDs, so that the timeout information of the BA feedback mechanism applied to multiple physical APs or AP MLDs can be defined during the process of establishing the block acknowledgement mechanism.

[0068] Through the third identification information identification of the BA request frame: after the BA feedback mechanism is established, the initiator of the BA feedback mechanism initiates the starting sequence number of the data frame to the responder of the BA feedback mechanism. After the STA subsequently switches from the first AP to the second AP, the starting frame of the data stream for data transmission between the STA and the first AP can be determined according to the starting sequence number, and then the data stream for data transmission between the STA and the first AP and the data stream for data transmission between the STA and the second AP are merged into a complete data stream, ensuring that data transmission is continuous during the STA roaming process, and realizing seamless communication when the STA switches from the first AP to the second AP.

[0069] In a second aspect, embodiments of the present disclosure provide a BA feedback mechanism negotiation method, which is applied to a responding end for establishing a BA feedback mechanism. The method includes:

[0070] Receive a first radio frame; wherein the first radio frame includes first identification information, the first identification information identifies timeout information of a BA frame, and the timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical APs or AP MLDs.

[0071] In combination with some embodiments of the second aspect, in some embodiments, the first identification information is carried in a Block ACK timeout field of the first radio frame.

[0072] In combination with some embodiments of the second aspect, in some embodiments, the first wireless frame also includes second identification information, and the second identification information includes: time synchronization parameters between the first AP and the second AP after the station device STA switches from the first AP to the second AP.

[0073] In conjunction with some embodiments of the second aspect, in some embodiments, the initiator of establishing the BA feedback mechanism is a STA or a non-AP MLD to which the STA is attached, and the second identification information includes: first time synchronization function TSF parameter information of the first AP or the first AP MLD to which the first AP is attached;

[0074] or

[0075] The initiator of establishing the BA feedback mechanism is the first AP or the first AP MLD, and the second identification information includes: first TSF parameter information, or an offset between the first TSF parameter information and the second TSF parameter information;

[0076] The second TSF parameter information is: TSF parameter information of the second AP or the second AP MLD to which the second AP belongs.

[0077] In combination with some embodiments of the second aspect, in some embodiments, the above method also includes: receiving a second wireless frame; the second wireless frame includes third identification information, and the third identification information includes the starting sequence number of the data frame sent by the initiator to the responder after the BA feedback mechanism is established.

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

[0079] A third radio frame is received; wherein the third radio frame includes fourth identification information, and the fourth identification information identifies whether the BA feedback mechanism is applied to multiple physical APs or AP MLDs.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the fourth identification information includes:

[0081] The first identification field indicates whether the BA feedback mechanism is applied to multiple physical APs or AP MLDs.

[0082] or

[0083] The second identification field identifies whether the parameter information for establishing the initial association between the STA and the first AP includes identification information of the second AP or the second AP MLD.

[0084] In combination with some embodiments of the second aspect, in some embodiments, the first identification field is carried in an ultra-high reliability (UHR) capability information element of the third radio frame.

[0085] In conjunction with some embodiments of the second aspect, in some embodiments, the first radio frame is a block acknowledgement mechanism request Add BA request frame, and the second radio frame is a block acknowledgement request BA request frame;

[0086] The initiator is a STA or a non-AP MLD, and the third wireless frame includes one or more of the following: a probe request frame, an association request frame, or a reassociation request frame;

[0087] The initiator is the first AP or the first AP MLD, and the third wireless frame includes one or more of the following: a beacon frame, a probe response frame, an association response frame, or a reassociation response frame.

[0088] In a third aspect, an embodiment of the present disclosure further provides a communication device, which is an initiator for establishing a BA feedback mechanism and includes at least one of a determination module and a sending module; wherein the communication device is used to execute an optional implementation method of the first aspect.

[0089] In a fourth aspect, an embodiment of the present disclosure further provides a communication device, which is a responding end for establishing a BA feedback mechanism and includes at least one receiving module; wherein the communication device is used to execute the optional implementation method of the second aspect.

[0090] In a fifth aspect, an embodiment of the present disclosure further provides a communication device, including:

[0091] one or more processors;

[0092] The above-mentioned communication device is used to execute the optional implementation method of the first aspect.

[0093] In a sixth aspect, an embodiment of the present disclosure further provides a communication device, including:

[0094] one or more processors;

[0095] The above-mentioned communication device is used to execute the optional implementation of the second aspect.

[0096] In the seventh aspect, an embodiment of the present disclosure also provides a communication system, including a first communication device and a second communication device; wherein the above-mentioned first communication device is an initiator for establishing a BA feedback mechanism, and is configured to execute an optional implementation method as in the first aspect, and the above-mentioned second communication device is a responder for establishing a BA feedback mechanism, and is configured to execute an optional implementation method as in the second aspect.

[0097] In an eighth 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 optional implementation methods such as the first aspect, the second aspect, the third aspect, and the fourth aspect.

[0098] In a ninth 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, second, third and fourth aspects.

[0099] In a tenth 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, third, and fourth aspects.

[0100] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first, second, third, and fourth aspects above.

[0101] It is understandable that the aforementioned initiator, responder, communication system, storage medium, program product, computer program, chip, or chip system is used to implement the BA feedback mechanism negotiation method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0102] The present disclosure provides a BA feedback mechanism negotiation method, a communication device, and a communication system. In some embodiments, the BA feedback mechanism negotiation method, signal transmission method, wireless frame transmission method, and other terms are interchangeable, and the information processing system, communication system, and other terms are interchangeable.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0107] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0116] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0117] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0118] 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.

[0119] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0120] As shown in Figure 1, the communication system 100 includes a first communication device 101 and a second communication device 102. The first communication device 101 is an initiator of establishing a BA feedback mechanism, and the second communication device 102 is a responder of establishing a BA feedback mechanism.

[0121] In some embodiments, the first communication device 101 may be a STA (Station, station device).

[0122] In some embodiments, the first communication device 101 includes, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal that supports WiFi communication. Optionally, the wireless communication terminal is, for example, at least one of 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, and a wireless terminal device in a smart home, but is not limited thereto.

[0123] Specifically, the first communication device 101 may be a terminal device or a network device with a wireless fidelity (WiFi) chip. Optionally, the first communication device 101 may support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a, as well as support the next generation 802.11 protocol, but is not limited thereto.

[0124] In some embodiments, the second communication device 102 may be an AP (Access Point, station device).

[0125] In some embodiments, the second communication 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, as well as support the next generation 802.11 protocol, but is not limited to this.

[0126] Optionally, in an embodiment of the present disclosure, the AP and the STA may be devices supporting multi-link communication, for example, they may be respectively represented as a multi-link access point device (Access Point Multi-Link Device, AP MLD) and a multi-link non-access point device (Non-Access Point Multi-Link Device, Non-AP MLD, also referred to as a multi-link site device); the AP MLD may represent an access point supporting the multi-link communication function, and the non-AP MLD may represent a site supporting the multi-link communication function.

[0127] It should be noted that the first communication device 101 may also be an AP or an AP MLD attached to the AP, and correspondingly, the second communication device 102 may be a STA or a non-AP MLD attached to the STA. The embodiments of the present disclosure do not limit the specific implementation of the initiator and responder of establishing the BA feedback mechanism. The initiator may be one of the STA and the AP that establish the initial association, and the responder may be the other of the STA and the AP that establish the initial association.

[0128] 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.

[0129] 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.

[0130] The various embodiments of the present disclosure can be applied to a wireless local area network (WLAN), such as a local area network that adopts the 802.11 series of protocols. In a WLAN, a basic service set (BSS) is a basic component of a WLAN. A BSS network is composed of station devices with certain associations 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 with a dedicated BSS management function, which is called an access point device, and other stations in the BSS network that are not APs are called terminals, also called non-AP STAs. APs 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, etc., a STA cannot detect other STAs that are farther away from it, and the two are hidden nodes of each other.

[0131] FIG2 is one of the interactive diagrams of the BA feedback mechanism negotiation method according to an embodiment of the present disclosure. As shown in FIG2 , the method includes:

[0132] Step 201: The first communication device 101 determines a third radio frame; wherein the third radio frame includes fourth identification information, and the fourth identification information identifies whether a BA feedback mechanism is applied to the above-mentioned multiple physical APs or AP MLDs.

[0133] In some embodiments, the first communication device 101 may be a STA, and the second communication device 102 may be a first AP. Of course, the first communication device 101 may also be a first AP, and correspondingly, the second communication device 102 may be a STA.

[0134] The multiple physical APs may include, but are not limited to, APs that have established an initial association with a STA or are about to establish an initial association with a STA, for example, a first AP and a second AP. The first AP and the second AP may be assigned to the same AP MLD, for example, the first AP MLD assigned to the first AP is the same as the second AP MLD assigned to the second AP. The first AP and the second AP may also be assigned to different AP MLDs, for example, the first AP MLD assigned to the first AP is different from the second AP MLD assigned to the second AP.

[0135] In the case where multiple physical APs all support multi-link communication, the fourth identification information identifies whether the BA feedback mechanism is applied to each link of the multiple AP MLDs.

[0136] An initial association may be established or is about to be established (i.e., no initial association has been established) between the first communication device 101 and the second communication device 102. During the process of establishing the initial association, the first communication device 101 and the second communication device 102 may identify, through a management frame related to the initial association, whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs.

[0137] In some embodiments, the first communication device 101 is a STA or a non-AP MLD to which the STA is attached, and the third radio frame includes one or more of the following: a probe request frame, an association request frame, or a reassociation request frame;

[0138] The first communication device 101 is a first AP or a first AP MLD to which the first AP is attached. The third wireless frame includes one or more of the following: a beacon frame, a probe response frame, an association request frame, or a reassociation response frame.

[0139] In the above embodiment, when the initiator is the STA or the non-AP MLD, the third radio frame is set to include one or more of the following: a probe request frame, an association request frame, or a reassociation request frame; and when the initiator is the first AP or the first AP MLD, the third radio frame is set to include one or more of the following: a beacon frame, a probe response frame, an association request frame, or a reassociation response frame. The third radio frame carries fourth identification information that identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs. This allows, during the process of establishing an initial association between the initiator and the responder of the BA feedback mechanism, to identify whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs.

[0140] In some embodiments, the fourth identification information includes:

[0141] A first identification field, which identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs.

[0142] or

[0143] The second identification field identifies whether the parameter information for establishing the initial association between the STA and the first AP includes identification information of the second AP or the second AP MLD to which the second AP is attached.

[0144] In some embodiments, the first identification field is carried in an ultra-high reliability (UHR) capability information element of the third radio frame.

[0145] The first flag field may occupy one bit in the third radio frame. When the bit is set to 1, it indicates that the BA feedback mechanism is applied between multiple physical APs or AP MLDs. When the bit is set to 0, it indicates that the BA feedback mechanism is not applied between multiple physical APs or AP MLDs.

[0146] The identification information of the second AP or the second AP MLD to which the second AP is attached may include: MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link; wherein the target link is the transmission link between the STA and the second AP.

[0147] In the above embodiment, whether the BA feedback mechanism applies to multiple physical APs or AP MLDs is indicated by the first identification field. This can be done directly and explicitly by identifying whether the BA feedback mechanism applies to the multiple physical APs or AP MLDs. The identification information of the second AP or the second AP MLD to which the second AP is attached is set using the parameter information used to establish the initial association between the STA and the first AP. After the initial association between the STA and the first AP is established, whether the BA feedback mechanism applies to the multiple physical APs or AP MLDs is indicated implicitly.

[0148] Step 202 : The first communication device 101 sends a third radio frame to the second communication device 102 .

[0149] In the above embodiment, the first communication device 101 sends a third radio frame to the second communication device 102, and indicates whether the BA feedback mechanism is applied between multiple physical APs or AP MLDs through the fourth identification information in the third radio frame; thereby, the device receiving the third radio frame can directly determine whether the BA feedback mechanism is applied between multiple physical APs or AP MLDs involved in the current data transmission process based on the fourth identification information in the third radio frame, so that the same BA feedback mechanism can be used between multiple physical APs or AP MLDs to feedback the transmitted data frames, thereby improving spectrum utilization and data transmission efficiency, so that the BA feedback mechanism can adapt to UHR requirements.

[0150] Optionally, in step 201 and step 202 , the second communication device 102 may also determine a third radio frame and send the third radio frame to the first communication device 101 .

[0151] After the initial association is established between the first communication device 101 and the second communication device 102, data can be transmitted via the communication link established therebetween. The data frames transmitted between the first communication device 101 and the second communication device 102 may be quality of service (QoS) data frames.

[0152] Optionally, data transmission can be performed between the first communication device 101 and the second communication device 102 within R-TWT SP (R-TWT service time).

[0153] Step 203 , the first communication device 101 determines a first radio frame; wherein the first radio frame includes first identification information, the first identification information identifies timeout information of a BA frame, and the timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical APs or AP MLDs.

[0154] In the case where multiple physical APs all support multi-link communication, the timeout information indicates that the BA feedback mechanism is applied to each link of the multiple AP MLDs.

[0155] In some embodiments, the first radio frame is an Add BA request frame.

[0156] In some embodiments, the first identification information may be carried in a Block ACK timeout field of the first radio frame.

[0157] In some embodiments, the timeout information of the BA frame indicates the maximum duration during which the communication connection is maintained between the initiator and the responder of the BA frame without performing data transmission.

[0158] In some embodiments, a timer may be started after the BA feedback mechanism is established to determine the duration during which a communication connection is maintained between the initiator and the responder of the BA frame and no data transmission is performed.

[0159] Optionally, when the duration is less than or equal to the maximum duration indicated by the timeout information of the BA frame, data transmission can continue; when the duration is greater than the maximum duration indicated by the timeout information of the BA frame, data transmission needs to be re-performed, for example, after the BA mechanism is re-established.

[0160] In the above embodiment, by defining the timeout information of the BA frame, and defining the timeout information of the BA frame as the timeout information applied by the BA feedback mechanism between multiple physical APs or AP MLDs, the BA feedback mechanism can be applied between multiple physical APs or AP MLDs. There is no need to define the timeout information of the BA frame corresponding to each AP, thereby improving spectrum utilization and data transmission efficiency, and enabling the BA feedback mechanism to adapt to UHR requirements.

[0161] In some embodiments, the first radio frame may further include second identification information, where the second identification information includes: a time synchronization parameter between the first AP and the second AP after the STA switches from the first AP to the second AP.

[0162] There may be a certain time deviation between the connection clocks of different APs under their connections. If, after the STA switches from the first AP to the second AP, it is still in the second connection where the second AP is located, the time information under the first connection where the first AP is located is used to time the transmission process of the data frame, which may cause delays and affect the transmission of the data frame.

[0163] Optionally, the time synchronization parameter between the first AP and the second AP may be determined according to a time deviation between a connection clock of a first connection where the first AP is located and a connection clock of a second connection where the second AP is located.

[0164] In some embodiments, the first communication device is a STA or a non-AP MLD to which the STA is attached, and the second identification information includes: first TSF parameter information of a first AP or a first AP MLD to which the first AP is attached;

[0165] The first communication device is a first AP or the first AP MLD, and the second identification information includes: first TSF parameter information, or an offset between the first TSF parameter information and the second TSF parameter information;

[0166] The second TSF parameter information is: TSF parameter information of the second AP or the second AP MLD to which the second AP belongs.

[0167] In the case that the first communication device is a STA or a non-AP MLD to which the STA is attached, the timing operation may be performed after time synchronization is performed according to the first TSF parameter information.

[0168] It should be noted that if the first AP supports multi-link communication, that is, the first AP is attached to the first AP MLD, then TSF parameter information exists under each link corresponding to the first AP MLD. Time synchronization can be performed based on the TSF parameter information of the link where the first AP is located.

[0169] The second identification information is the offset between the first TSF parameter information and the second TSF parameter information, and both the first AP and the second AP support multi-link communication, that is, the first AP is attached to the first AP MLD and the second AP is attached to the second AP MLD, then there is a TSF offset (TSF offset) between each AP in the first AP MLD and each AP in the second AP MLD, and time synchronization can be performed specifically based on the TSF offset (TSF offset) under the link between the first AP and the second AP.

[0170] When the first communication device is a first AP or a first AP MLD attached to the first AP, time synchronization can be performed based on the TSF parameter information of the second AP or the second AP MLD attached to the second AP, and then timing can be established from the beginning. Alternatively, timing can be performed after the time information of the second connection of the second AP is synchronized with the time information of the first connection of the first AP based on the offset between the first TSF parameter information and the second TSF parameter information.

[0171] In the above embodiment, by defining the time synchronization parameters between the first AP and the second AP according to the different initiators for establishing the BA feedback mechanism, the time synchronization parameters between the first AP and the second AP can be adaptively indicated, so that after the STA switches from the first AP to the second AP, the time can be kept consistent, avoiding the time deviation of the connection clock time before and after the switching, affecting the data transmission process, and improving the data transmission efficiency.

[0172] Step 204 : The first communication device 101 sends a first radio frame to the second communication device 102 .

[0173] Optionally, in step 203 and step 204 , the second communication device 102 may also determine a first radio frame and send the first radio frame to the first communication device 101 .

[0174] In step 205, the first communication device 101 determines a second radio frame; the second radio frame includes third identification information, and the third identification information includes the starting sequence number of the data frame initiated by the initiator of the BA feedback mechanism to the responder of the BA feedback mechanism after the BA feedback mechanism is established.

[0175] In some embodiments, the second radio frame is a BA request frame.

[0176] After the STA switches from the first AP to the second AP, the starting value of the sequence number (SN) of the BA feedback mechanism is set through the third identification information in the second wireless frame: after the BA feedback mechanism is established, the starting sequence number of the data frame initiated by the initiator of the BA feedback mechanism to the responder of the BA feedback mechanism is set, instead of the SN value carried by the QoS data frame received by the STA from the second AP, or the SN value of the QoS data frame sent by the STA to the second AP. This can achieve that in the process of the STA switching from the first AP to the second AP, the starting sequence number of the data frame for data transmission between the STA and the first AP can still be used as a reference point to determine the complete transmitted data flow, ensure uninterrupted data transmission, and achieve seamless communication when the STA switches from the first AP to the second AP.

[0177] Step 206 : The first communication device 101 sends a second radio frame to the second communication device 102 .

[0178] Optionally, in step 205 and step 206 , the second communication device 102 may also determine a second radio frame and send the second radio frame to the first communication device 101 .

[0179] 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", "bit", "data", "program", and "chip" can be used interchangeably.

[0180] 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.

[0181] In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.

[0182] 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.

[0183] 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.

[0184] 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.

[0185] The BA feedback mechanism 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 203 can be implemented as an independent embodiment, and step 205 can be implemented as an independent embodiment; the combination of step 201 and step 202 can be implemented as an independent embodiment, the combination of step 203 and step 204 can be implemented as an independent embodiment, and the combination of step 205 and step 206 can be implemented as an independent embodiment; the combination of step 201, step 202, step 203 and step 204 can be implemented as an independent embodiment, the combination of step 201, step 202, step 205 and step 206 can be implemented as an independent embodiment, and the combination of step 203, step 204, step 205 and step 206 can be implemented as an independent embodiment, but is not limited thereto.

[0186] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0187] FIG3 is a flowchart of a BA feedback mechanism negotiation method according to an embodiment of the present disclosure.

[0188] As shown in FIG3 , the above method may be applied to a first communication device 101, which is an initiator of establishing a BA feedback mechanism. The above method includes:

[0189] Step 301: The first communication device 101 determines a third radio frame; wherein the third radio frame includes fourth identification information, and the fourth identification information identifies whether a BA feedback mechanism is applied to the above-mentioned multiple physical APs or AP MLDs.

[0190] Optionally, in the embodiment of the present disclosure, the first communication device 101 is a STA or a non-AP MLD to which the STA is attached, and the third wireless frame includes one or more of the following: a probe request frame, an association request frame, or a reassociation request frame;

[0191] The first communication device 101 is a first AP or a first AP MLD to which the first AP is attached. The third wireless frame includes one or more of the following: a beacon frame, a probe response frame, an association request frame, or a reassociation response frame.

[0192] Optionally, in the embodiment of the present disclosure, the fourth identification information includes:

[0193] A first identification field, which identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs.

[0194] or

[0195] The second identification field identifies whether the parameter information for establishing the initial association between the STA and the first AP includes identification information of the second AP or the second AP MLD to which the second AP is attached.

[0196] Optionally, in an embodiment of the present disclosure, the first identification field is carried in an ultra-high reliability (Ultra-High Reliability, UHR) capability information element of the third radio frame.

[0197] The optional implementation of step 301 can refer to the optional implementation of step 201 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0198] Step 302 : The first communication device 101 sends a third radio frame to the second communication device 102 .

[0199] The optional implementation of step 302 can refer to the optional implementation of step 202 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0200] Step 303 , the first communication device 101 determines a first radio frame; wherein the first radio frame includes first identification information, the first identification information identifies timeout information of a BA frame, and the timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical APs or AP MLDs.

[0201] In some embodiments, the first radio frame is an Add BA request frame.

[0202] In some embodiments, the first identification information may be carried in a Block ACK timeout field of the first radio frame.

[0203] In some embodiments, the first radio frame may further include second identification information, where the second identification information includes: a time synchronization parameter between the first AP and the second AP after the STA switches from the first AP to the second AP.

[0204] In some embodiments, the first communication device is a STA or a non-AP MLD to which the STA is attached, and the second identification information includes: first TSF parameter information of a first AP or a first AP MLD to which the first AP is attached;

[0205] The first communication device is a first AP or the first AP MLD, and the second identification information includes: first TSF parameter information, or an offset between the first TSF parameter information and the second TSF parameter information;

[0206] The second TSF parameter information is: TSF parameter information of the second AP or the second AP MLD to which the second AP belongs.

[0207] The optional implementation of step 303 can refer to the optional implementation of step 203 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0208] Step 304 : The first communication device 101 sends a first radio frame to the second communication device 102 .

[0209] The optional implementation of step 304 can refer to the optional implementation of step 204 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0210] In step 305, the first communication device 101 determines a second radio frame; the second radio frame includes third identification information, and the third identification information includes the starting sequence number of the data frame initiated by the initiator of the BA feedback mechanism to the responder of the BA feedback mechanism after the BA feedback mechanism is established.

[0211] In some embodiments, the second radio frame is a BA request frame.

[0212] The optional implementation of step 305 can refer to the optional implementation of step 205 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0213] Step 306 : The first communication device 101 sends a second radio frame to the second communication device 102 .

[0214] The optional implementation of step 306 can refer to the optional implementation of step 206 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0215] The BA feedback mechanism negotiation method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 301 can be implemented as an independent embodiment, step 303 can be implemented as an independent embodiment, and step 305 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 303 and step 304 can be implemented as an independent embodiment, and the combination of step 305 and step 306 can be implemented as an independent embodiment; the combination of step 301, step 302, step 303 and step 304 can be implemented as an independent embodiment; the combination of step 301, step 302, step 305 and step 306 can be implemented as an independent embodiment; the combination of step 303, step 304, step 305 and step 306 can be implemented as an independent embodiment, but is not limited thereto.

[0216] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0217] FIG4 is a second flowchart of a BA feedback mechanism negotiation method according to an embodiment of the present disclosure.

[0218] As shown in FIG4 , the above method may be applied to the second communication device 102 , where the first communication device 102 is the responding end of establishing the BA feedback mechanism. The above method includes:

[0219] In step 401 , the second communication device 102 receives a third radio frame sent by the first communication device 101 . The third radio frame includes fourth identification information, and the fourth identification information identifies whether the BA feedback mechanism is applied to the above-mentioned multiple physical APs or AP MLDs.

[0220] Optionally, in the embodiment of the present disclosure, the first communication device 101 is a STA or a non-AP MLD to which the STA is attached, and the third radio frame includes one or more of the following: a probe request frame, an association request frame, or a reassociation request frame;

[0221] The first communication device 101 is a first AP or a first AP MLD to which the first AP is attached. The third wireless frame includes one or more of the following: a beacon frame, a probe response frame, an association request frame, or a reassociation response frame.

[0222] Optionally, in the embodiment of the present disclosure, the fourth identification information includes:

[0223] A first identification field, which identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs.

[0224] or

[0225] The second identification field identifies whether the parameter information for establishing the initial association between the STA and the first AP includes identification information of the second AP or the second AP MLD to which the second AP is attached.

[0226] Optionally, in the embodiment of the present disclosure, the first identification field is carried in an ultra-high reliability (UHR) capability information element of the third radio frame.

[0227] The optional implementation of step 401 can be found in the optional implementation of steps 201 and 202 in Figure 2, the optional implementation of steps 301 and 302 in Figure 3, and other related parts in the embodiment involved in Figure 2 and the embodiment involved in Figure 3, which will not be repeated here.

[0228] Step 402: The second communication device 102 receives a first radio frame. The first radio frame includes first identification information, which identifies timeout information of a BA frame. The timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical APs or AP MLDs.

[0229] In some embodiments, the first radio frame is an Add BA request frame.

[0230] In some embodiments, the first identification information may be carried in a Block ACK timeout field of the first radio frame.

[0231] In some embodiments, the first radio frame may further include second identification information, where the second identification information includes: a time synchronization parameter between the first AP and the second AP after the STA switches from the first AP to the second AP.

[0232] In some embodiments, the first communication device is a STA or a non-AP MLD to which the STA is attached, and the second identification information includes: first TSF parameter information of a first AP or a first AP MLD to which the first AP is attached;

[0233] The first communication device is a first AP or the first AP MLD, and the second identification information includes: first TSF parameter information, or an offset between the first TSF parameter information and the second TSF parameter information;

[0234] The second TSF parameter information is: TSF parameter information of the second AP or the second AP MLD to which the second AP belongs.

[0235] The optional implementation of step 402 can be found in the optional implementation of steps 203 and 204 in Figure 2, the optional implementation of steps 303 and 304 in Figure 3, and other related parts in the embodiment involved in Figure 2 and the embodiment involved in Figure 3, which will not be repeated here.

[0236] Step 403, the second communication device 102 receives a second radio frame; the second radio frame includes third identification information, and the third identification information includes the starting sequence number of the data frame initiated by the initiator of the BA feedback mechanism to the responder of the BA feedback mechanism after the BA feedback mechanism is established.

[0237] In some embodiments, the second radio frame is a BA request frame.

[0238] The optional implementation of step 403 can be found in the optional implementation of steps 205 and 206 in Figure 2, the optional implementation of steps 305 and 306 in Figure 3, the embodiment involved in Figure 2 and other related parts of the embodiment involved in Figure 3, and will not be repeated here.

[0239] The BA feedback mechanism negotiation method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 401 may be implemented as an independent embodiment, step 402 may be implemented as an independent embodiment, and step 403 may be implemented as an independent embodiment; the combination of step 401 and step 402 may be implemented as an independent embodiment, the combination of step 401 and step 403 may be implemented as an independent embodiment, and the combination of step 402 and step 403 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0240] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 .

[0241] The embodiments of the present disclosure also provide an apparatus for implementing any of the above-mentioned BA feedback mechanism negotiation methods. For example, a BA feedback mechanism negotiation method apparatus is provided, wherein the apparatus includes units or modules for implementing each step performed by a terminal in any of the above-mentioned methods. For another example, another apparatus is provided, including 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-mentioned methods.

[0242] 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.

[0243] 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.

[0244] Figure 5 is a schematic diagram of a communication device according to an embodiment of the present disclosure. As shown in Figure 5 , the communication device 500 is a first communication device that can be the initiator of establishing a BA feedback mechanism and includes at least one of a determination module 501 and a sending module 502 .

[0245] In some embodiments, the above-mentioned determination module 501 is used to determine a first wireless frame; wherein the first wireless frame includes first identification information, the first identification information identifies the timeout information of the block confirmation BA frame, and the timeout information identifies the timeout information of the BA feedback mechanism applied between multiple physical access point devices AP.

[0246] Optionally, the determining module 501 is configured to execute at least one of the communication steps (e.g., step 201, step 203, step 205, step 301, step 303, and step 305, but not limited thereto) performed by the first communication device 101 in any of the above methods, which are not described in detail here. The sending module 502 is configured to execute steps 202, step 204, step 206, step 302, step 304, and step 306.

[0247] FIG6 is a second structural diagram of a communication device according to an embodiment of the present disclosure. As shown in FIG6 , the communication device 700 is a second communication device, which can be a responding end for establishing a BA feedback mechanism and can include: a receiving module 601 .

[0248] In some embodiments, the above-mentioned receiving module 601 is used to receive a first wireless frame; wherein the first wireless frame includes first identification information, the first identification information identifies the timeout information of the block confirmation BA frame, and the timeout information identifies the timeout information of the BA feedback mechanism applied to multiple physical access point devices AP.

[0249] Optionally, the above-mentioned receiving module 601 is used to execute at least one of the communication steps (for example, step 202, step 204, step 206, step 302, step 304, step 306, step 401, step 402, step 403) performed by the second communication device 102 in any of the above methods, which will not be repeated here.

[0250] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0251] Figure 7 is a schematic diagram of the structure of a terminal 700 (e.g., user equipment) proposed in an embodiment of the present disclosure. Terminal 700 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 700 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.

[0252] As shown in Figure 7, terminal 700 includes one or more processors 701. Processor 701 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 800 is used to perform any of the above methods.

[0253] In some embodiments, the terminal 700 further includes one or more memories 702 for storing instructions. Optionally, all or part of the memory 802 may be located outside the terminal 700.

[0254] In some embodiments, the terminal 700 further includes one or more transceivers 704. When the terminal 700 includes one or more transceivers 704, the transceiver 704 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step 202, step 204, step 206, step 302, step 304, step 306, step 401, step 402, and step 403, but not limited thereto), and the processor 701 performs at least one of the other steps (for example, step 201, step 203, step 205, step 301, step 303, and step 305, but not limited thereto).

[0255] 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.

[0256] In some embodiments, terminal 700 may include one or more interface circuits 703. Optionally, interface circuit 703 is connected to memory 702. Interface circuit 703 may be configured to receive signals from memory 702 or other devices, and may be configured to send signals to memory 702 or other devices. For example, interface circuit 703 may read instructions stored in memory 702 and send the instructions to processor 701.

[0257] The terminal 700 described in the above embodiment may be a communication device such as a user device, but the scope of the terminal 700 described in the present disclosure is not limited thereto, and the structure of the terminal 700 may not be limited by FIG. 7 . 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 and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0258] FIG8 is a schematic diagram of the structure of a chip 800 according to an embodiment of the present disclosure. If the terminal 700 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 800 shown in FIG8 , but the present disclosure is not limited thereto.

[0259] The chip 800 includes one or more processors 801 , and the chip 800 is configured to execute any of the above methods.

[0260] In some embodiments, chip 800 further includes one or more circuits 803. Optionally, interface circuit 803 is connected to memory 802. Interface circuit 803 can be used to receive signals from memory 802 or other devices, and can be used to send signals to memory 802 or other devices. For example, interface circuit 803 can read instructions stored in memory 802 and send the instructions to processor 801.

[0261] In some embodiments, the interface circuit 803 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step 202, step 204, step 206, step 302, step 304, step 306, step 401, step 402, step 403, but not limited to these), and the processor 801 executes at least one of the other steps (for example, step 201, step 203, step 205, step 301, step 303, step 305, but not limited to these).

[0262] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0263] In some embodiments, the chip 800 further includes one or more memories 802 for storing instructions. Alternatively, all or part of the memory 802 may be external to the chip 800.

[0264] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the terminal 700, the terminal 700 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.

[0265] The present disclosure also provides a program product, which, when executed by the terminal 700, enables the terminal 700 to perform any of the above methods. Optionally, the program product is a computer program product.

[0266] 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 block confirmation BA feedback mechanism negotiation method, applied to the initiator of establishing a BA feedback mechanism, characterized in that: The method comprises: Determine a first wireless frame; wherein the first wireless frame includes first identification information, the first identification information identifies timeout information of a BA frame, and the timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical access point devices AP or a multi-link access point device AP MLD; The first radio frame is sent.

2. The BA feedback mechanism negotiation method according to claim 1, characterized in that: The first identification information is carried in a block acknowledgment frame timeout Block ACK timeout field of the first radio frame.

3. The BA feedback mechanism negotiation method according to claim 1 or 2, characterized in that: The first wireless frame also includes second identification information, where the second identification information includes: a time synchronization parameter between the first AP and the second AP after the station device STA switches from the first AP to the second AP.

4. The BA feedback mechanism negotiation method according to claim 3, characterized in that: The initiator is the STA or a multi-link non-access point device non-AP MLD attached to the STA, and the second identification information includes: first time synchronization function TSF parameter information of the first AP or a first AP MLD attached to the first AP; or The initiator is the first AP or the first AP MLD, and the second identification information includes: first TSF parameter information, or an offset between the first TSF parameter information and the second TSF parameter information; The second TSF parameter information is: TSF parameter information of the second AP or a second AP MLD to which the second AP is attached.

5. The BA feedback mechanism negotiation method according to claim 3 or 4, characterized in that: The method further comprises: Determine a second radio frame; the second radio frame includes third identification information, and the third identification information includes a starting sequence number of a data frame sent by the initiator to the responder that establishes the BA feedback mechanism after the BA feedback mechanism is established; The second radio frame is sent.

6. The BA feedback mechanism negotiation method according to claim 5, characterized in that: The method further comprises: Determine a third radio frame; wherein the third radio frame includes fourth identification information, and the fourth identification information identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs; The third radio frame is sent.

7. The BA feedback mechanism negotiation method according to claim 6, characterized in that: The fourth identification information includes: A first identification field, where the first identification field identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs; or A second identification field, where the second identification field identifies whether the parameter information for establishing an initial association between the STA and the first AP includes identification information of the second AP or the second AP MLD.

8. The BA feedback mechanism negotiation method according to claim 7, characterized in that: The first identification field is carried in an ultra high reliability (UHR) capability information element of the third radio frame.

9. The BA feedback mechanism negotiation method according to any one of claims 6 to 8, characterized in that: The first radio frame is an Add BA request frame for establishing a block acknowledgement mechanism, and the second radio frame is a BA request frame; The initiator is the STA or the non-AP MLD, and the third wireless frame includes one or more of the following: a probe request frame, an association request frame, or a reassociation request frame; The initiator is the first AP or the first AP MLD, and the third wireless frame includes one or more of the following: a beacon frame, a probe response frame, an association response frame, or a reassociation response frame.

10. A block confirmation BA feedback mechanism negotiation method, applied to the responding end of establishing a BA feedback mechanism, characterized in that: The method comprises: Receive a first wireless frame; wherein the first wireless frame includes first identification information, the first identification information identifies timeout information of a BA frame, and the timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical access point devices AP or a multi-link access point device AP MLD.

11. The BA feedback mechanism negotiation method according to claim 10, characterized in that: The first identification information is carried in a block acknowledgment frame timeout Block ACK timeout field of the first radio frame.

12. The BA feedback mechanism negotiation method according to claim 10 or 11, characterized in that: The first wireless frame also includes second identification information, where the second identification information includes: a time synchronization parameter between the first AP and the second AP after the station device STA switches from the first AP to the second AP.

13. The BA feedback mechanism negotiation method according to claim 12, characterized in that: The initiator of establishing the BA feedback mechanism is the STA or a multi-link non-access point device non-AP MLD to which the STA is attached, and the second identification information includes: first time synchronization function TSF parameter information of the first AP or a first AP MLD to which the first AP is attached; or The initiator of establishing the BA feedback mechanism is the first AP or the first AP MLD, and the second identification information includes: first TSF parameter information, or an offset between the first TSF parameter information and the second TSF parameter information; The second TSF parameter information is: TSF parameter information of the second AP or a second AP MLD to which the second AP is attached.

14. The BA feedback mechanism negotiation method according to claim 12 or 13, characterized in that: The method further comprises: Receive a second wireless frame; the second wireless frame includes third identification information, and the third identification information includes a starting sequence number of a data frame sent by the initiator to the responder after the BA feedback mechanism is established.

15. The BA feedback mechanism negotiation method according to claim 14, characterized in that: The method further comprises: A third radio frame is received; wherein the third radio frame includes fourth identification information, and the fourth identification information identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs.

16. The BA feedback mechanism negotiation method according to claim 15, characterized in that: The fourth identification information includes: A first identification field, where the first identification field identifies whether the BA feedback mechanism is applied to the multiple physical APs or AP MLDs; or A second identification field, where the second identification field identifies whether the parameter information for establishing an initial association between the STA and the first AP includes identification information of the second AP or the second AP MLD.

17. The BA feedback mechanism negotiation method according to claim 16, characterized in that: The first identification field is carried in an ultra high reliability (UHR) capability information element of the third radio frame.

18. The BA feedback mechanism negotiation method according to any one of claims 15 to 17, characterized in that: The first radio frame is an Add BA request frame for establishing a block acknowledgement mechanism, and the second radio frame is a BA request frame; The initiator is the STA or the non-AP MLD, and the third wireless frame includes one or more of the following: a probe request frame, an association request frame, or a reassociation request frame; The initiator is the first AP or the first AP MLD, and the third wireless frame includes one or more of the following: a beacon frame, a probe response frame, an association response frame, or a reassociation response frame.

19. A communication device, the communication device being an initiator of establishing a block confirmation (BA) feedback mechanism, characterized in that: include: A determination module, configured to determine a first wireless frame; wherein the first wireless frame includes first identification information, the first identification information identifies timeout information of a block confirmation BA frame, and the timeout information identifies timeout information between a BA feedback mechanism applied to multiple physical access point devices AP or AP MLD; A sending module is used to send the first wireless frame.

20. A communication device, the communication device being a responding end for establishing a BA feedback mechanism, characterized in that: include: The receiving module is used to receive a first wireless frame; wherein the first wireless frame includes first identification information, the first identification information identifies the timeout information of the BA frame, and the timeout information identifies the timeout information between the BA feedback mechanism applied to multiple physical APs or AP MLDs.

21. A communication device, the communication device being an initiator of establishing a BA feedback mechanism, characterized in that: include: one or more processors; A memory coupled to the one or more processors, wherein the memory stores executable instructions, and when the executable instructions are executed by the one or more processors, the communication device executes the BA feedback mechanism negotiation method as described in any one of claims 1 to 9.

22. A communication device, the communication device being a responding end for establishing a BA feedback mechanism, characterized in that: include: one or more processors; A memory coupled to the one or more processors, wherein the memory stores executable instructions, and when the executable instructions are executed by the one or more processors, the communication device executes the BA feedback mechanism negotiation method as described in any one of claims 10 to 18.

23. A communication system, characterized in that: It includes a first communication device and a second communication device; the first communication device is an initiator for establishing a block acknowledgment BA feedback mechanism, and the second communication device is a responder for establishing a BA feedback mechanism; wherein the first communication device is configured to implement the BA feedback mechanism negotiation method described in any one of claims 1 to 9, and the second communication device is configured to implement the BA feedback mechanism negotiation method described in any one of claims 10 to 18.

24. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device executes the block confirmation BA feedback mechanism negotiation method according to any one of claims 1 to 9, or executes the BA feedback mechanism negotiation method according to any one of claims 10 to 18.

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