Data frame transmission method, communication device and communication system

Abstract

The embodiment of the invention relates to a data frame transmission method, communication equipment and a communication system, and the method comprises the steps: a transmitting end determines a first data frame; wherein the first data frame comprises first identification information, and the first identification information comprises whether the first data frame is a data frame repeatedly transmitted in the process of switching the STA from the first AP to the second AP; and the first data frame is sent, so that data transmission between the STA and the AP which establishes the current communication connection with the STA is not interrupted, and the requirement of the UHR for the transmission rate and the requirement of the low-delay service for the delay are met.

Description

Data frame transmission method, communication equipment and communication system Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a data frame transmission method, communication equipment, and communication system. Background Art

[0002] With the continuous development of Wi-Fi technology, the next generation of Wi-Fi technology has been proposed: Ultra High Reliability (UHR). In UHR, a station (STA) may switch from an access point (AP) or multi-link device (AP MLD) to another AP (or AP MLD). To ensure uninterrupted data communication with the original AP (or AP MLD), a data frame transmission method is required to support STA switching from the original AP to the destination AP.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a data frame transmission method, a communication device, and a communication system to ensure uninterrupted data communication during STA switching.

[0005] In a first aspect, an embodiment of the present disclosure provides a data frame transmission method, the method comprising:

[0006] The transmitting end determines a first data frame; wherein the first data frame includes first identification information, and the first identification information includes: whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP;

[0007] Send the first data frame.

[0008] In a second aspect, an embodiment of the present disclosure further provides a data frame transmission method, the method comprising:

[0009] The receiving end receives a first data frame, wherein the first data frame includes first identification information, and the first identification information identifies whether the first data frame is a data frame transmitted to the second AP during the process of the STA switching from the first AP to the second AP.

[0010] In a third aspect, an embodiment of the present disclosure further provides a communication device, which is a transmitting end and includes:

[0011] A determination module is configured to determine a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies whether the first data frame is a data frame repeatedly transmitted during a switching process of a station device STA from a first access point device AP to a second AP;

[0012] The sending module is used to send a first data frame.

[0013] In a fourth aspect, an embodiment of the present disclosure further provides a communication device, which is a receiving end and includes:

[0014] The receiving module is used to receive a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies whether the first data frame is a data frame transmitted to the second AP during the process of the station device STA switching from the first access point device AP to the second AP.

[0015] In a fifth aspect, an embodiment of the present disclosure further provides a communication device, which is a transmitting end and includes:

[0016] one or more processors;

[0017] The communication device is used to implement the data frame transmission method in the first aspect of the embodiment of the present disclosure.

[0018] In a sixth aspect, an embodiment of the present disclosure further provides a communication device, which is a receiving end and includes:

[0019] one or more processors;

[0020] The communication device is used to implement the data frame transmission method in the second aspect of the embodiment of the present disclosure.

[0021] 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 a transmitting end, configured to execute an optional implementation method as in the first aspect, and the above-mentioned second communication device is a receiving end, configured to execute an optional implementation method as in the second aspect.

[0022] 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.

[0023] Additional aspects and advantages of the embodiments of the present disclosure will be given in part in the following description, which will become apparent from the following description or be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions 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.

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

[0026] FIG2 is one of interactive schematic diagrams of a data frame transmission method according to an embodiment of the present disclosure;

[0027] FIG3 is a flow chart of a data frame transmission method according to an embodiment of the present disclosure;

[0028] FIG4A is a second flow chart of a data frame transmission method according to an embodiment of the present disclosure;

[0029] FIG4B is a third flow chart of a data frame transmission method according to an embodiment of the present disclosure;

[0030] FIG4C is a fourth flow chart of a data frame transmission method according to an embodiment of the present disclosure;

[0031] FIG5A is a second interactive schematic diagram of a data frame transmission method according to an embodiment of the present disclosure;

[0032] FIG5B is a third interactive diagram of the data frame transmission method according to an embodiment of the present disclosure;

[0033] FIG5C is a fourth interactive diagram of the data frame transmission method according to an embodiment of the present disclosure;

[0034] FIG6 is a schematic diagram of a structure of a communication device according to an embodiment of the present disclosure;

[0035] FIG7 is a second structural diagram of a communication device provided according to an embodiment of the present disclosure;

[0036] FIG8 is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure;

[0037] FIG9 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The embodiments of the present disclosure provide a data frame transmission method, a communication device, and a communication system.

[0039] In a first aspect, an embodiment of the present disclosure provides a data frame transmission method, the method comprising:

[0040] The transmitting end determines a first data frame; wherein the first data frame includes first identification information, and the first identification information includes: whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP;

[0041] Send the first data frame.

[0042] In the above embodiment, the transmitting end determines and sends a first data frame, and carries first identification information in the first data frame. The first identification information is used to identify whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP. In this way, during the process of the STA communicating with the switched AP, the receiving end of the first data frame can determine whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and execute a subsequent transmission process based on the determination result, so that the data transmission between the STA and the AP with which the current communication connection is established is uninterrupted, thereby meeting the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the first identification information includes a first identification bit;

[0044] The first flag bit is set to the first parameter value, indicating that the first data frame is a data frame repeatedly transmitted when the STA is switched from the first AP to the second AP;

[0045] The first identification bit is set to the second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0046] In the above embodiment, by digitizing the first identification bit, setting the first identification bit to the first parameter value, identifying the first data frame as a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP; setting the first identification bit to the second parameter value, identifying the first data frame as not a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP, the amount of transmission data required for the first data frame during the transmission process can be reduced.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the first data frame is a data frame repeatedly transmitted by the STA during a handover from the first AP to the second AP, and the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit;

[0048] The second flag identifies the MAC address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached;

[0049] The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; the target link is the transmission link between the STA and the second AP;

[0050] The fourth flag identifies MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link.

[0051] In the above embodiment, by carrying first identification information in the first data frame, the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit. The second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached, and the third identification bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached in the target link. The target link is the transmission link between the STA and the second AP. The fourth identification bit identifies the MAC address information of the second AP or the second AP MLD to which the second AP is attached in the target link. Thus, the receiver of the first data frame can determine, based on the specific content identified by the second identification bit, the third identification bit, and the fourth identification bit, whether the first data frame is a data frame repeatedly transmitted during a handover from the STA to the second AP. Furthermore, if the first data frame is a data frame repeatedly transmitted during a handover from the STA to the second AP, the receiver can further determine whether the first data frame is a data frame repeatedly transmitted during a handover from the STA to the second AP within an AP MLD or between AP MLDs.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first data frame uses the same SNS on the first AP side and the second AP side.

[0053] In the above embodiment, by using the same SNS to identify the first data frame as a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP, the receiving end of the first data frame can know whether the currently received data frame is a data frame repeatedly transmitted during the process of switching from the first AP to the second AP, so that when it is determined that the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP, the subsequent transmission process is executed according to the determination result, so that the data transmission between the STA and the AP with which the current communication connection is established is uninterrupted, so as to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0054] In conjunction with some embodiments of the first aspect, in some embodiments, the first data frame is an uplink data frame, and a transmitter of the first data frame includes a STA or a non-AP MLD to which the STA is attached;

[0055] The first data frame is a downlink data frame, and a sending end of the first data frame includes the second AP or a second AP MLD to which the second AP is attached.

[0056] In combination with some embodiments of the first aspect, in some embodiments, the receiving end determines whether the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP based on the SNS of the first data frame and at least one of the first identification information.

[0057] In the above embodiment, the receiving end can determine whether the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP based on the SNS of the first data frame and at least one of the first identification information, and then execute the subsequent transmission process based on the determination result, so that the data transmission between the STA and the AP with which it establishes the current communication connection is continuous, so as to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the receiving end determines that the first data frame is a data frame repeatedly transmitted during a STA handover from a first AP to a second AP, including at least one of the following:

[0059] The receiving end determines that the first data frame uses the same SNS on the first AP side and the second AP side, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA being switched from the first AP to the second AP;

[0060] The receiving end determines that the first identification bit is set to the first parameter value, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP;

[0061] The receiving end determines that the second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP MLD, the third identification bit identifies the MAC address information of the STA or the above-mentioned non-AP MLD under the target link, and the fourth identification bit identifies the MAC address information of the second AP or the second AP MLD under the target link, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0062] In the above embodiment, the receiving end can determine whether the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP based on the SNS of the first data frame and at least one item of the content included in the first identification information, and then execute the subsequent transmission process based on the determination result, so that the data transmission between the STA and the AP with which it establishes the current communication connection is continuous, so as to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, if the receiving end determines that the first data frame is a data frame repeatedly transmitted by the STA during a handover from the first AP to the second AP, and the first AP MLD is the same as the second AP MLD, the first data frame is determined to be a data frame repeatedly transmitted by the STA during a handover from the first AP to the second AP within the AP MLD;

[0064] If the receiving end determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first AP MLD is different from the second AP MLD, it is determined that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP between AP MLDs.

[0065] In the above embodiment, the receiving end can determine, specifically based on whether the first AP MLD attached to the first AP and the second AP MLD attached to the second AP are the same, whether the first data frame is a data frame repeatedly transmitted by the STA during the process of switching from the first AP to the second AP within the AP MLD, or a data frame repeatedly transmitted by the STA during the process of switching from the first AP to the second AP between AP MLDs, and then execute the subsequent transmission process based on the determination result, so that the data transmission between the STA and the AP with which the current communication connection is established is uninterrupted, so as to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0066] In a second aspect, an embodiment of the present disclosure provides a data frame transmission method, the method comprising:

[0067] The receiving end receives a first data frame, wherein the first data frame includes first identification information, and the first identification information identifies whether the first data frame is a data frame transmitted to the second AP during the process of the STA switching from the first AP to the second AP.

[0068] In the above embodiment, during the communication between the STA and the switched AP, the receiving end of the first data frame is able to determine whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and execute the subsequent transmission process based on the determination result, so that the data transmission between the STA and the AP with which the current communication connection is established is continuous, so as to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0069] In conjunction with some embodiments of the second aspect, in some embodiments, the first identification information includes a first identification bit;

[0070] The first flag bit is set to the first parameter value, indicating that the first data frame is a data frame repeatedly transmitted when the STA is switched from the first AP to the second AP;

[0071] The first identification bit is set to the second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0072] In conjunction with some embodiments of the second aspect, in some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first access point device AP to a second AP, and the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit:

[0073] The second flag identifies the MAC address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached;

[0074] The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; the target link is the transmission link between the STA and the second AP;

[0075] The fourth flag identifies MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link.

[0076] In combination with some embodiments of the second aspect, in some embodiments, the first data frame is a data frame repeatedly transmitted during the process of STA switching from a first access point device AP to a second AP, and the first data frame uses the same SNS on the first AP side and the second AP side.

[0077] In conjunction with some embodiments of the second aspect, in some embodiments, the first data frame is an uplink data frame, and the receiving end of the first data frame includes the second AP or a second AP MLD attached to the second AP;

[0078] The first data frame is a downlink data frame, and a receiving end of the first data frame includes a STA or a non-AP MLD to which the STA is attached.

[0079] In combination with some embodiments of the second aspect, in some embodiments, the receiving end determines whether the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP based on the SNS of the first data frame and at least one of the first identification information.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the receiving end determines that the first data frame is a data frame repeatedly transmitted during a STA handover from a first AP to a second AP, including at least one of the following:

[0081] The receiving end determines that the first data frame uses the same SNS on the first AP side and the second AP side, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA being switched from the first AP to the second AP;

[0082] The receiving end determines that the first identification bit is set to the first parameter value, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP;

[0083] The receiving end determines that the second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP MLD; the third identification bit identifies the MAC address information of the STA or the above-mentioned non-AP MLD under the target link; and the fourth identification bit identifies the MAC address information of the second AP or the second AP MLD under the target link, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0084] In conjunction with some embodiments of the second aspect, in some embodiments, if it is determined that the first data frame is a data frame repeatedly transmitted by the STA during a handover from the first AP to the second AP, and the first AP MLD is the same as the second AP MLD, the first data frame is determined to be a data frame repeatedly transmitted by the STA during a handover from the first AP to the second AP within the AP MLD;

[0085] If it is determined that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first AP MLD is different from the second AP MLD, it is determined that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP between AP MLDs.

[0086] In a third aspect, an embodiment of the present disclosure further provides a communication device, which is a transmitting end and includes at least one of a determination module and a sending module; wherein the communication device is used to execute the optional implementation method of the first aspect.

[0087] In a fourth aspect, an embodiment of the present disclosure further provides a communication device, which is a receiving end and includes at least one receiving module; wherein the communication device is used to execute the optional implementation method of the second aspect.

[0088] In a fifth aspect, an embodiment of the present disclosure further provides a communication device, including:

[0089] one or more processors;

[0090] The above-mentioned communication device is used to execute the optional implementation method of the first aspect.

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

[0092] one or more processors;

[0093] The above-mentioned communication device is used to execute the optional implementation of the second aspect.

[0094] 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 a transmitting end, configured to execute an optional implementation method as in the first aspect, and the above-mentioned second communication device is a receiving end, configured to execute an optional implementation method as in the second aspect.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] It is understandable that the aforementioned transmitting end, receiving end, communication system, storage medium, program product, computer program, chip, or chip system are all used to execute the communication 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.

[0100] The embodiments of the present disclosure provide a communication method, a transmitting end, a receiving end, and a communication system. In some embodiments, the terms communication method, signal transmission method, wireless frame transmission method, etc. can be used interchangeably, and the terms information processing system, communication system, etc. can be used interchangeably.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0105] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0114] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0115] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0116] 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.

[0117] FIG1 is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0118] As shown in FIG1 , a communication system 100 includes a transmitting end 101 and a receiving end 102 for performing data transmission.

[0119] In some embodiments, the transmitting end and the receiving end can be determined according to actual needs. For example, when the data transmission process occurs between a station device (STA) and an access point device (AP), the transmitting end can be a STA and the corresponding receiving end can be an AP; or, the transmitting end can be an AP and the corresponding receiving end can be a STA.

[0120] The STA includes, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal that supports WiFi communication. Optionally, the wireless communication terminal includes, but is not limited to, 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 capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device used in industrial control, a wireless terminal device used in self-driving, a wireless terminal device used in remote medical surgery, a wireless terminal device used in smart grids, a wireless terminal device used in transportation safety, a wireless terminal device used in smart cities, and a wireless terminal device used in smart homes.

[0121] Specifically, a STA can be a terminal device or network device with a Wireless Fidelity (WiFi) chip. Optionally, the STA 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 the next generation 802.11 protocol, but is not limited thereto.

[0122] In some embodiments, an AP 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 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 these.

[0123] Optionally, in an embodiment of the present disclosure, the AP and STA may be devices supporting multiple connections, for example, they may be represented as a multi-connection access point device (AP MLD) and a multi-connection site device (Non-Access Point Multi-Link Device, Non-AP MLD), respectively; the AP MLD may represent an access point supporting multi-connection communication functions, and the non-AP MLD may represent a site supporting multi-connection communication functions.

[0124] 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.

[0125] 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.

[0126] 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.

[0127] FIG2 is one of the interactive schematic diagrams of the data frame transmission method provided according to an embodiment of the present disclosure. As shown in FIG2 , the method includes:

[0128] In step 201, the transmitter 101 determines a first data frame. The first data frame includes first identification information, and the first identification information includes whether the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP.

[0129] In UHR, the low-latency service transmission mechanism will be further enhanced. In the process of STA transmitting low-latency services, there may be a scenario where the STA switches between APs (that is, the STA roams between APs). In order to meet the latency requirements of low-latency services, in UHR, the STA may switch between multiple AP devices. For example, when the location of the STA changes, while the STA is communicating with AP1 for low-latency services or communicating with low-latency services through the management of AP1 (such as Tunneled Direct Link Setup services), it needs to switch to AP2 to continue transmitting low-latency services; or, when the STA is communicating data with AP1, when the STA roams from the coverage of AP1 to the coverage of AP2, the quality of the communication link with AP1 deteriorates, then the STA seamlessly switches to AP2 for data communication, so that data transmission continues.

[0130] In the embodiment of the present disclosure, the transmission of the first data frame may be performed between the STA and the AP. The first data frame may be a QoS (Quality of Service) data frame.

[0131] In order to achieve delay-free data transmission, in an embodiment of the present disclosure, the first identification information in the first data frame can be used to identify whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0132] It is understandable that in the embodiments of the present disclosure, STA can be non-AP MLD and AP can be AP MLD. For the sake of convenience, the embodiments of the present disclosure are introduced using STA and AP as examples. However, this does not constitute a limitation to the embodiments of the present disclosure.

[0133] Optionally, the first AP may be the AP to which the STA is currently communicating, there may be multiple second APs, and the second AP and the first AP may belong to the same AP MLD, that is, the STA switches from the first AP to the second AP within the AP MLD; the second AP and the first AP may also not belong to the same AP MLD, that is, the STA switches from the first AP to the second AP between AP MLDs.

[0134] Specifically, the transmission of the first data frame may be performed between the STA and the second AP (ie, the target AP). For example, the first data frame may be sent from the STA to the second AP, or from the second AP to the STA.

[0135] In an embodiment of the present disclosure, a transmitting end determines a first data frame and carries first identification information in the first data frame. The first identification information is used to identify whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP. Therefore, when the communication status of the AP with which the current communication connection is established changes and the STA switches to another AP (i.e., the second AP, the target AP), during the communication between the STA and the switched AP, the receiving end of the first data frame can determine whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and execute a subsequent transmission process based on the determination result, so that the data transmission between the STA and the AP with which the current communication connection is established is continuous, so as to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0136] In some embodiments, the first data frame may be a data frame (uplink data frame) sent directly by the STA to the second AP for transmitting business data; the first data frame may also be a data frame (downlink data frame) sent directly by the second AP to the STA for transmitting business data.

[0137] When the first data frame is an uplink data frame (UL), the transmitter of the first data frame includes the STA or a non-AP MLD to which the STA is attached; when the first data frame is a downlink data frame (DL), the transmitter of the first data frame includes the second AP or a second AP MLD to which the second AP is attached. That is, the transmitter of the first data frame can be a device that supports multi-connection communication or a device that does not support multi-connection communication.

[0138] Optionally, when the first data frame is a downlink QoS data frame, it may be specifically an MSDU (MAC Service Data Unit, media access control service data unit) or an A-MSDU (Aggregation MAC Service Data Unit, MAC service data unit aggregation, obtained by aggregating MSDU).

[0139] In some embodiments, the first identification information includes a first identification bit,

[0140] The first flag bit is set to the first parameter value, indicating that the first data frame is a data frame repeatedly transmitted when the STA is switched from the first AP to the second AP;

[0141] The first identification bit is set to the second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0142] The parameter value of the first flag bit can be set to "1" or "0." For example, the first parameter value can be set to "1" and the second parameter value can be set to "0." When the first flag bit is set to 1, it indicates that the first data frame is a data frame repeatedly transmitted during the STA's handover from the first AP to the second AP; when the first flag bit is set to 0, it indicates that the first data frame is not a data frame repeatedly transmitted during the STA's handover from the first AP to the second AP.

[0143] In the above embodiment, by digitizing the first identification bit, setting the first identification bit to the first parameter value, identifying the first data frame as a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP; setting the first identification bit to the second parameter value, identifying the first data frame as not a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP, the amount of transmission data required for the first data frame during the transmission process can be reduced.

[0144] In some embodiments, the first data frame is a data frame repeatedly transmitted when the STA switches from the first AP to the second AP. The first data frame uses the same SNS (sequence number space) on the first AP side and the second AP side.

[0145] Optionally, when the first data frame uses the same SNS on the first AP side and the second AP side, the first data frame is a data frame repeatedly transmitted during the process of the STA being handed over from the first AP to the second AP. When the first data frame uses different SNSs on the first AP side and the second AP side, the first data frame is not a data frame repeatedly transmitted during the process of the STA being handed over from the first AP to the second AP.

[0146] In the above embodiment, by using the same SNS to identify the first data frame as a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP, the receiving end of the first data frame can know whether the currently received data frame is a data frame repeatedly transmitted during the process of switching from the first AP to the second AP, so that when it is determined that the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP, the subsequent transmission process is executed according to the determination result, so that the data transmission between the STA and the AP with which the current communication connection is established is uninterrupted, so as to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0147] In the embodiment of the present disclosure, whether the first data frame is a data frame repeatedly transmitted by the STA during the handover from the first AP to the second AP within the AP MLD or between AP MLDs may be further identified in the following manner.

[0148] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit;

[0149] The second flag bit identifies the MAC (Media Access Control) address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached;

[0150] The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; the target link is the transmission link between the STA and the second AP;

[0151] The fourth flag identifies MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link.

[0152] Optionally, the first identification information can be carried in the address field in the first data frame. Specifically, the second identification bit can be carried in the A1 address field (Address 1) of the first data frame, the third identification bit can be carried in the A2 address field (Address 2) of the first data frame, and the fourth identification bit can be carried in the A3 address field (Address 3) of the first data frame.

[0153] Optionally, when the first AP does not support multi-connection communication, the second identification bit can identify the MAC address information of the first AP; when the first AP supports multi-connection communication, the second identification bit can identify the MAC address information of the first AP MLD to which the first AP is attached.

[0154] Optionally, when the STA does not support multi-connection communication, the third identification bit can identify the MAC address information of the STA under the target link; when the STA supports multi-connection communication, the third identification bit can identify the MAC address information of the non-AP MLD to which the STA is attached under the target link.

[0155] Optionally, when the second AP does not support multi-connection communication, the fourth identification bit can identify the MAC address information of the second AP under the target link; when the second AP supports multi-connection communication, the fourth identification bit can identify the MAC address information of the second AP MLD to which the second AP is attached under the target link.

[0156] The second flag identifies the MAC address information of the first AP MLD to which the first AP is attached, and the fourth flag identifies the MAC address information of the second AP MLD under the target link to which the second AP is attached. If the first AP MLD and the second AP MLD are the same, it can be indicated that the first AP and the second AP are attached to the same AP MLD, and the first data frame is a data frame repeatedly transmitted by the STA during the process of switching from the first AP to the second AP within the AP MLD.

[0157] The second flag identifies the MAC address information of the first AP MLD to which the first AP is attached, and the fourth flag identifies the MAC address information of the second AP MLD to which the second AP is attached under the target link. If the first AP MLD and the second AP MLD are the same, it can be indicated that the first AP and the second AP are attached to different AP MLDs, and the first data frame is a data frame repeatedly transmitted by the STA during the process of switching from the first AP to the second AP between AP MLDs.

[0158] In an embodiment of the present disclosure, first identification information is carried in a first data frame, where the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit. The second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached, and the third identification bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached in a target link. The target link is a transmission link between the STA and a second AP. The fourth identification bit identifies the MAC address information of the second AP or the second AP MLD to which the second AP is attached in the target link. Thus, a receiver of the first data frame can determine, based on the specific contents identified by the second identification bit, the third identification bit, and the fourth identification bit, whether the first data frame is a data frame repeatedly transmitted during a handover from the STA to the second AP. Furthermore, if the first data frame is a data frame repeatedly transmitted during a handover from the STA to the second AP, the receiver can further determine whether the first data frame is a data frame repeatedly transmitted during a handover from the STA to the second AP within an AP MLD or between AP MLDs.

[0159] In step 202 , the transmitting end 101 sends a first data frame to the receiving end 102 .

[0160] In an embodiment of the present disclosure, a transmitting end sends a first data frame, and carries first identification information in the first data frame, and uses the first identification information to identify whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP; in this way, during the process of the STA communicating with the switched AP, the receiving end of the first data frame can determine whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and execute a subsequent transmission process based on the determination result, so that the data transmission between the STA and the AP with which the current communication connection is established is uninterrupted, thereby meeting the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0161] In step 203 , the receiving end 102 determines whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP based on at least one of the SNS and the first identification information of the first data frame.

[0162] In some embodiments, when the receiving end 102 determines that the first data frame uses the same SNS on the first AP side and the second AP side, it can determine that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP; when it is determined that the first data frame uses different SNSs on the first AP side and the second AP side, it can determine that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0163] In some embodiments, when the receiving end 102 determines that the first identification information includes that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, it can determine that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP; when it determines that the first identification information includes that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, it can determine that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0164] In some embodiments, the receiving end 102 may determine that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP when it is determined that the first data frame uses the same SNS on the first AP side and the second AP side, and the first identification information includes that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP. When the receiving end 102 determines that the first data frame uses different SNSs on the first AP side and the second AP side, and the first identification information includes that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, it may determine that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0165] In an embodiment of the present disclosure, the receiving end can determine whether the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP based on the SNS and at least one of the first identification information of the first data frame, and then execute the subsequent transmission process based on the determination result, so that the data transmission between the STA and the AP with which it establishes the current communication connection is continuous, so as to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0166] Specifically, step 203 may include:

[0167] In step 2031a, the receiving end 102 determines that the first data frame uses the same SNS on the first AP side and the second AP side, and determines that the first data frame is a data frame repeatedly transmitted during the STA switching from the first AP to the second AP.

[0168] In step 2031a, the receiving end 102 can determine that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP when it is determined that the first data frame uses the same SNS on the first AP side and the second AP side; and when it is determined that the first data frame uses different SNSs on the first AP side and the second AP side, it can be determined that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0169] In step 2031b, the receiving end 102 determines that the first flag is set to the first parameter value, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0170] In step 2031b, the receiving end 102 can determine that the first identification bit is set to the first parameter value, and can determine that the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP; when determining that the first identification bit is set to the second parameter value, it can be determined that the first data frame is not a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP.

[0171] In step 2031c, the receiving end 102 determines that the second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP to which the first AP is attached, the third identification bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link, and the fourth identification bit identifies the MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0172] Optionally, the receiving end 102 can parse the frame format of the first data frame according to the frame format of the first data frame, and after obtaining the address field in the first data frame, it can determine the specific content identified by the second identification bit in Address 1, the specific content identified by the third identification bit in Address 2, and the specific content identified by the fourth identification bit in Address 3; and when the second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP to which the first AP is attached, the third identification bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link, and the fourth identification bit identifies the MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link, it can be determined that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0173] In an embodiment of the present disclosure, the receiving end can determine whether the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP based on the SNS of the first data frame and at least one item of the content included in the first identification information, and then execute the subsequent transmission process based on the determination result, so that the data transmission between the STA and the AP with which it establishes the current communication connection is continuous, so as to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0174] After determining that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, the receiving end 102 can also determine according to the following steps whether the process of the STA switching from the first AP to the second AP occurs within the AP MLD or between AP MLDs, that is, whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP within the AP MLD, or a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP between AP MLDs.

[0175] In step 2032a, the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first AP MLD is the same as the second AP MLD. The receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP within the AP MLD.

[0176] In step 2032b, the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first AP MLD is different from the second AP MLD. The receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP between AP MLDs.

[0177] In an embodiment of the present disclosure, the receiving end can determine, specifically based on whether the first AP MLD attached to the first AP and the second AP MLD attached to the second AP are the same, whether the first data frame is a data frame repeatedly transmitted by the STA during the process of switching from the first AP to the second AP within the AP MLD, or a data frame repeatedly transmitted by the STA during the process of switching from the first AP to the second AP between AP MLDs, and then execute a subsequent transmission process based on the determination result, so that the data transmission between the STA and the AP with which the current communication connection is established is uninterrupted, so as to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0178] 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.

[0179] 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.

[0180] In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.

[0181] 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.

[0182] 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 comparing numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0183] 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.

[0184] The data frame transmission 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, and step 203 can be implemented as an independent embodiment; the combination of step 201 and step 202 can be implemented as an independent embodiment, the combination of step 201, step 202 and step 203 can be implemented as an independent embodiment, the combination of step 201, step 202 and step 203a in step 203 can be implemented as an independent embodiment, the combination of step 201, step 202 and step 203b in step 203 can be implemented as an independent embodiment, and step 201 The combination of step 201, step 202 and step 203 with step 2031c can be implemented as an independent embodiment. The combination of step 201, step 202 and step 203 with step 2031a and step 2031b can be implemented as an independent embodiment. The combination of step 201, step 202 and step 203 with step 2031a and step 2031c can be implemented as an independent embodiment. The combination of step 201, step 202 and step 203 with step 2031b and step 2031c can be implemented as an independent embodiment. Step 201, step 202, and the combination of step 2031a, step 2032a, and step 2032b in step 203 can be implemented as an independent embodiment. Step 201, step 202, and the combination of step 2031b, step 2032a, and step 2032b in step 203 can be implemented as an independent embodiment. Step 201, step 202, and the combination of step 2031c, step 2032a, and step 2032b in step 201, step 202, and step 203 can be implemented as an independent embodiment. The combination of step 2031a, step 2031b, step 2032a and step 2032b in step 03 can be implemented as an independent embodiment, the combination of step 2031a, step 2031c, step 2032a and step 2032b in step 201, step 202 and step 203 can be implemented as an independent embodiment, the combination of step 2031b, step 2031c, step 2032a and step 2032b in step 201, step 202 and step 203 can be implemented as an independent embodiment, but is not limited to this.

[0185] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0186] FIG3 is a flowchart of a data frame transmission method according to an embodiment of the present disclosure.

[0187] As shown in FIG3 , the above method may be applied to the transmitting end 101 and includes:

[0188] In step 301, the transmitter 101 determines a first data frame. The first data frame includes first identification information, and the first identification information includes whether the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP.

[0189] In some embodiments, when the first data frame is an uplink data frame (Up Link, UL), the transmitter of the first data frame includes the STA or the non-AP MLD attached to the STA; when the first data frame is a downlink data frame (Down Link, DL), the transmitter of the first data frame includes the second AP or the second AP MLD attached to the second AP.

[0190] In some embodiments, the first identification information includes a first identification bit,

[0191] The first flag bit is set to the first parameter value, indicating that the first data frame is a data frame repeatedly transmitted when the STA is switched from the first AP to the second AP;

[0192] The first identification bit is set to the second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0193] The amount of data required to be transferred during the transfer process.

[0194] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first data frame uses the same SNS on the first AP side and the second AP side.

[0195] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit;

[0196] The second flag bit identifies the MAC (Media Access Control) address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached;

[0197] The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; the target link is the transmission link between the STA and the second AP;

[0198] The fourth flag identifies MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link.

[0199] 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.

[0200] In step 302 , the transmitting end 101 sends a first data frame to the receiving end 102 .

[0201] 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.

[0202] The data frame transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 301 may be implemented as an independent embodiment, step 302 may be implemented as an independent embodiment, and the combination of step 301 and step 302 may be implemented as an independent embodiment, but is not limited thereto.

[0203] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0204] FIG4A is a second flow chart of a data frame transmission method according to an embodiment of the present disclosure.

[0205] As shown in FIG4A , the above method may be applied to the receiving end 102 , and the above method includes:

[0206] In step 4101, the receiving end 102 receives a first data frame. The first data frame includes first identification information, and the first identification information includes whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0207] In some embodiments, when the first data frame is an uplink data frame (Up Link, UL), the transmitter of the first data frame includes the STA or the non-AP MLD attached to the STA; when the first data frame is a downlink data frame (Down Link, DL), the transmitter of the first data frame includes the second AP or the second AP MLD attached to the second AP.

[0208] In some embodiments, the first identification information includes a first identification bit,

[0209] The first flag bit is set to the first parameter value, indicating that the first data frame is a data frame repeatedly transmitted when the STA is switched from the first AP to the second AP;

[0210] The first identification bit is set to the second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0211] The amount of data required to be transferred during the transfer process.

[0212] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first data frame uses the same SNS on the first AP side and the second AP side.

[0213] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit;

[0214] The second flag bit identifies the MAC (Media Access Control) address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached;

[0215] The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; the target link is the transmission link between the STA and the second AP;

[0216] The fourth flag identifies MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link.

[0217] The optional implementation of step 4101 can refer to the optional implementation of step 201 and step 202 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0218] In step 4102 , the receiving end 102 determines whether the first data frame is a data frame repeatedly transmitted during a STA handover from a first AP to a second AP based on at least one of the SNS and the first identification information of the first data frame.

[0219] In some embodiments, step 4102 may include:

[0220] In step 41021a, the receiving end 102 determines that the first data frame uses the same SNS on the first AP side and the second AP side, and determines that the first data frame is a data frame repeatedly transmitted during the STA switching from the first AP to the second AP.

[0221] In step 41021b, the receiving end 102 determines that the first flag is set to the first parameter value, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0222] In step 41021c, the receiving end 102 determines that the second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP to which the first AP is attached, the third identification bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link, and the fourth identification bit identifies the MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0223] In step 41022a, the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first AP MLD is the same as the second AP MLD. The receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP within the AP MLD.

[0224] In step 41022b, the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first AP MLD is different from the second AP MLD. The receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP between AP MLDs.

[0225] The optional implementation of step 4102 can be found in the optional implementation of steps 203, 2031a, 2031b, 2031c, 2032a, and 2032b of FIG. 2 , and other related parts in the embodiment involved in FIG. 2 , which will not be repeated here.

[0226] The data frame transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 4101 may be implemented as an independent embodiment, step 4102 may be implemented as an independent embodiment, and the combination of step 4101 and step 4102 may be implemented as an independent embodiment, but is not limited thereto.

[0227] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4A .

[0228] FIG4B is a third flowchart of the data frame transmission method according to an embodiment of the present disclosure.

[0229] As shown in FIG4B , the above method may be applied to the receiving end 102 , and the above method includes:

[0230] In step 4201, the receiving end 102 receives a first data frame. The first data frame includes first identification information, and the first identification information includes whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0231] In some embodiments, when the first data frame is an uplink data frame (Up Link, UL), the transmitter of the first data frame includes the STA or the non-AP MLD attached to the STA; when the first data frame is a downlink data frame (Down Link, DL), the transmitter of the first data frame includes the second AP or the second AP MLD attached to the second AP.

[0232] In some embodiments, the first identification information includes a first identification bit,

[0233] The first flag bit is set to the first parameter value, indicating that the first data frame is a data frame repeatedly transmitted when the STA is switched from the first AP to the second AP;

[0234] The first identification bit is set to the second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0235] The amount of data required to be transferred during the transfer process.

[0236] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first data frame uses the same SNS on the first AP side and the second AP side.

[0237] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit;

[0238] The second flag bit identifies the MAC (Media Access Control) address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached;

[0239] The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; the target link is the transmission link between the STA and the second AP;

[0240] The fourth flag identifies MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link.

[0241] The optional implementation of step 4201 can refer to the optional implementation of step 201 and step 202 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0242] In step 4202 , the receiving end 102 determines, based on the SNS of the first data frame, whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0243] Optionally, the receiving end 102 determines that the first data frame uses the same SNS on the first AP side and the second AP side, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0244] If the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during a STA handover from a first AP to a second AP, and the first AP MLD to which the first AP is attached is the same as the second AP MLD to which the second AP is attached, the first data frame is determined to be a data frame repeatedly transmitted during a STA handover from the first AP to the second AP within the AP MLD. If the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during a STA handover from the first AP to the second AP, and the first AP MLD is different from the second AP MLD, the first data frame is determined to be a data frame repeatedly transmitted during a STA handover from the first AP to the second AP between AP MLDs.

[0245] Optional implementations of step 4202 can be found in the optional implementations of step 203, step 2031a, step 2032a, and step 2032b of FIG. 2 , and other related parts in the embodiment involved in FIG. 2 , which will not be repeated here.

[0246] The data frame transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 4201 may be implemented as an independent embodiment, step 4202 may be implemented as an independent embodiment, and the combination of step 4201 and step 4202 may be implemented as an independent embodiment, but is not limited thereto.

[0247] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4B .

[0248] FIG4C is a fourth flow chart of the data frame transmission method according to an embodiment of the present disclosure.

[0249] As shown in FIG4C , the above method may be applied to the receiving end 102 , and the above method includes:

[0250] In step 4301, the receiving end 102 receives a first data frame. The first data frame includes first identification information, and the first identification information includes whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0251] In some embodiments, when the first data frame is an uplink data frame (Up Link, UL), the transmitter of the first data frame includes the STA or the non-AP MLD attached to the STA; when the first data frame is a downlink data frame (Down Link, DL), the transmitter of the first data frame includes the second AP or the second AP MLD attached to the second AP.

[0252] In some embodiments, the first identification information includes a first identification bit,

[0253] The first flag bit is set to the first parameter value, indicating that the first data frame is a data frame repeatedly transmitted when the STA is switched from the first AP to the second AP;

[0254] The first identification bit is set to the second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0255] The amount of data required to be transferred during the transfer process.

[0256] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first data frame uses the same SNS on the first AP side and the second AP side.

[0257] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit;

[0258] The second flag bit identifies the MAC (Media Access Control) address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached;

[0259] The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; the target link is the transmission link between the STA and the second AP;

[0260] The fourth flag identifies MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link.

[0261] The optional implementation of step 4301 can refer to the optional implementation of step 201 and step 202 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0262] In step 4302 , the receiving end 102 determines, based on the first identification information in the first data frame, whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0263] Optionally, the receiving end 102 determines that the first flag is set to the first parameter value, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0264] or,

[0265] The receiving end 102 determines that the second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP to which the first AP is attached, the third identification bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link, and the fourth identification bit identifies the MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0266] If the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during a STA handover from a first AP to a second AP, and the first AP MLD to which the first AP is attached is the same as the second AP MLD to which the second AP is attached, the first data frame is determined to be a data frame repeatedly transmitted during a STA handover from the first AP to the second AP within the AP MLD. If the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during a STA handover from the first AP to the second AP, and the first AP MLD is different from the second AP MLD, the first data frame is determined to be a data frame repeatedly transmitted during a STA handover from the first AP to the second AP between AP MLDs.

[0267] The optional implementation of step 4302 can be found in the optional implementation of step 203, step 2031b, step 2031c, step 2032a, step 2032b in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0268] The data frame transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 4301 may be implemented as an independent embodiment, step 4302 may be implemented as an independent embodiment, and the combination of step 4301 and step 4302 may be implemented as an independent embodiment, but is not limited thereto.

[0269] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4C .

[0270] FIG5A is a second interactive schematic diagram of the data frame transmission method provided according to an embodiment of the present disclosure.

[0271] As shown in FIG5A , the method includes:

[0272] In step 5101, the transmitter 101 determines a first data frame. The first data frame includes first identification information, and the first identification information includes whether the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP.

[0273] In some embodiments, when the first data frame is an uplink data frame (Up Link, UL), the transmitter of the first data frame includes the STA or the non-AP MLD attached to the STA; when the first data frame is a downlink data frame (Down Link, DL), the transmitter of the first data frame includes the second AP or the second AP MLD attached to the second AP.

[0274] In some embodiments, the first identification information includes a first identification bit,

[0275] The first flag bit is set to the first parameter value, indicating that the first data frame is a data frame repeatedly transmitted when the STA is switched from the first AP to the second AP;

[0276] The first identification bit is set to the second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0277] The amount of data required to be transferred during the transfer process.

[0278] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first data frame uses the same SNS on the first AP side and the second AP side.

[0279] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit;

[0280] The second flag bit identifies the MAC (Media Access Control) address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached;

[0281] The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; the target link is the transmission link between the STA and the second AP;

[0282] The fourth flag identifies MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link.

[0283] The optional implementation of step 5101 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.

[0284] In step 5102 , the transmitting end 101 sends a first data frame to the receiving end 102 .

[0285] The optional implementation of step 5102 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.

[0286] In step 5103 , the receiving end 102 determines whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP based on at least one of the SNS and the first identification information of the first data frame.

[0287] In some embodiments, step 5103 may include:

[0288] In step 51031a, the receiving end 102 determines that the first data frame uses the same SNS on the first AP side and the second AP side, and determines that the first data frame is a data frame repeatedly transmitted during the STA switching from the first AP to the second AP.

[0289] In step 51031b, the receiving end 102 determines that the first flag is set to the first parameter value, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0290] In step 51031c, the receiving end 102 determines that the second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP to which the first AP is attached, the third identification bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link, and the fourth identification bit identifies the MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0291] In step 51032a, the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first AP MLD is the same as the second AP MLD. The receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP within the AP MLD.

[0292] In step 51032b, the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first AP MLD is different from the second AP MLD. The receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP between AP MLDs.

[0293] For optional implementations of step 5103, please refer to the optional implementations of step 203, step 2031a, step 2031b, step 2031c, step 2032a, and step 2032b in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0294] The data frame transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 5101 may be implemented as an independent embodiment, step 5102 may be implemented as an independent embodiment, step 5103 may be implemented as an independent embodiment, the combination of step 5101 and step 5102 may be implemented as an independent embodiment, and the combination of step 5101, step 5102, and step 5103 may be implemented as an independent embodiment, but is not limited thereto.

[0295] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 5A .

[0296] FIG5B is a third interactive schematic diagram of the data frame transmission method provided according to an embodiment of the present disclosure.

[0297] As shown in FIG5B , the method includes:

[0298] In step 5201, the transmitter 101 determines a first data frame. The first data frame includes first identification information, and the first identification information includes whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0299] In some embodiments, when the first data frame is an uplink data frame (Up Link, UL), the transmitter of the first data frame includes the STA or the non-AP MLD attached to the STA; when the first data frame is a downlink data frame (Down Link, DL), the transmitter of the first data frame includes the second AP or the second AP MLD attached to the second AP.

[0300] In some embodiments, the first identification information includes a first identification bit,

[0301] The first flag bit is set to the first parameter value, indicating that the first data frame is a data frame repeatedly transmitted when the STA is switched from the first AP to the second AP;

[0302] The first identification bit is set to the second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0303] The amount of data required to be transferred during the transfer process.

[0304] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first data frame uses the same SNS on the first AP side and the second AP side.

[0305] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit;

[0306] The second flag bit identifies the MAC (Media Access Control) address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached;

[0307] The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; the target link is the transmission link between the STA and the second AP;

[0308] The fourth flag identifies MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link.

[0309] The optional implementation of step 5201 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.

[0310] In step 5202 , the transmitting end 101 sends a first data frame to the receiving end 102 .

[0311] The optional implementation of step 5202 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.

[0312] In step 5203 , the receiving end 102 determines, based on the SNS of the first data frame, whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0313] Optionally, the receiving end 102 determines that the first data frame uses the same SNS on the first AP side and the second AP side, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0314] If the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during a STA handover from a first AP to a second AP, and the first AP MLD to which the first AP is attached is the same as the second AP MLD to which the second AP is attached, the first data frame is determined to be a data frame repeatedly transmitted during a STA handover from the first AP to the second AP within the AP MLD. If the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during a STA handover from the first AP to the second AP, and the first AP MLD is different from the second AP MLD, the first data frame is determined to be a data frame repeatedly transmitted during a STA handover from the first AP to the second AP between AP MLDs.

[0315] The optional implementation of step 5203 can refer to the optional implementation of step 203, step 2031a, step 2032a, step 2032b in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0316] The data frame transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 5201 can be implemented as an independent embodiment, step 5202 can be implemented as an independent embodiment, step 5203 can be implemented as an independent embodiment, the combination of step 5201 and step 5202 can be implemented as an independent embodiment, and the combination of step 5201, step 5202, and step 5203 can be implemented as an independent embodiment, but is not limited thereto.

[0317] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 5B .

[0318] FIG5C is a fourth interactive schematic diagram of the data frame transmission method provided according to an embodiment of the present disclosure.

[0319] As shown in FIG5C , the method includes:

[0320] In step 5301, the transmitter 101 determines a first data frame. The first data frame includes first identification information, and the first identification information includes whether the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP.

[0321] In some embodiments, when the first data frame is an uplink data frame (Up Link, UL), the transmitter of the first data frame includes the STA or the non-AP MLD attached to the STA; when the first data frame is a downlink data frame (Down Link, DL), the transmitter of the first data frame includes the second AP or the second AP MLD attached to the second AP.

[0322] In some embodiments, the first identification information includes a first identification bit,

[0323] The first flag bit is set to the first parameter value, indicating that the first data frame is a data frame repeatedly transmitted when the STA is switched from the first AP to the second AP;

[0324] The first identification bit is set to the second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0325] The amount of data required to be transferred during the transfer process.

[0326] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first data frame uses the same SNS on the first AP side and the second AP side.

[0327] In some embodiments, the first data frame is a data frame repeatedly transmitted during a STA switching from a first AP to a second AP, and the first identification information includes a second identification bit, a third identification bit, and a fourth identification bit;

[0328] The second flag bit identifies the MAC (Media Access Control) address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached;

[0329] The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; the target link is the transmission link between the STA and the second AP;

[0330] The fourth flag identifies MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link.

[0331] The optional implementation of step 5301 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.

[0332] In step 5302 , the transmitting end 101 sends a first data frame to the receiving end 102 .

[0333] The optional implementation of step 5302 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.

[0334] In step 5303 , the receiving end 102 determines, based on the first identification information, whether the first data frame is a data frame that is repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0335] Optionally, the receiving end 102 determines that the first flag is set to the first parameter value, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0336] or,

[0337] The receiving end 102 determines that the second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP to which the first AP is attached, the third identification bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link, and the fourth identification bit identifies the MAC address information of the second AP or the second AP MLD to which the second AP is attached under the target link, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

[0338] If the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during a STA handover from a first AP to a second AP, and the first AP MLD to which the first AP is attached is the same as the second AP MLD to which the second AP is attached, the first data frame is determined to be a data frame repeatedly transmitted during a STA handover from the first AP to the second AP within the AP MLD. If the receiving end 102 determines that the first data frame is a data frame repeatedly transmitted during a STA handover from the first AP to the second AP, and the first AP MLD is different from the second AP MLD, the first data frame is determined to be a data frame repeatedly transmitted during a STA handover from the first AP to the second AP between AP MLDs.

[0339] The optional implementation of step 5303 can be found in the optional implementation of step 203, step 2031b, step 2031c, step 2032a, step 2032b in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0340] The data frame transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 5301 can be implemented as an independent embodiment, step 5302 can be implemented as an independent embodiment, step 5303 can be implemented as an independent embodiment, the combination of step 5301 and step 5302 can be implemented as an independent embodiment, and the combination of step 5301, step 5302, and step 5303 can be implemented as an independent embodiment, but is not limited thereto.

[0341] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 5C .

[0342] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0343] 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.

[0344] 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.

[0345] FIG6 is a schematic diagram of a communication device according to an embodiment of the present disclosure. As shown in FIG6 , the communication device 600 is a first communication device, which may be a transmitting end, and includes at least one of a determining module 601 and a transmitting module 602 .

[0346] In some embodiments, the above-mentioned determination module 601 is used to determine the first data frame; wherein the first data frame includes first identification information, and the first identification information includes: whether the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP.

[0347] Optionally, the determination module 601 is configured to execute at least one of the communication steps (e.g., step 201, step 301, step 5101, step 5201, and step 5301, but not limited thereto) performed by the transmitter 101 in any of the above methods, which are not described in detail here. The sending module 602 is configured to execute steps 202, step 302, step 5102, step 5202, and step 5302.

[0348] FIG7 is a second structural diagram of a communication device according to an embodiment of the present disclosure. As shown in FIG7 , the communication device 700 is a second communication device, which may be a receiving end and may include a receiving module 701 .

[0349] In some embodiments, the above-mentioned receiving module 701 is used to receive a first data frame sent by a transmitting end; wherein the first data frame includes first identification information, and the first identification information includes: whether the first data frame is a data frame repeatedly transmitted during the process of STA switching from a first AP to a second AP.

[0350] Optionally, the above-mentioned receiving module 701 is used to execute at least one of the communication steps (for example, step 202, step 4101, step 4201, step 4301, step 5102, step 5202, step 5302) performed by the second B device 102 in any of the above methods, which will not be repeated here.

[0351] 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.

[0352] Figure 8 is a schematic diagram of the structure of a terminal 800 (e.g., user equipment) proposed in an embodiment of the present disclosure. Terminal 800 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 800 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.

[0353] As shown in Figure 8, terminal 800 includes one or more processors 801. Processor 801 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.

[0354] In some embodiments, the terminal 800 further includes one or more memories 802 for storing instructions. Optionally, all or part of the memories 802 may be located outside the terminal 800.

[0355] In some embodiments, the terminal 800 further includes one or more transceivers 804. When the terminal 800 includes one or more transceivers 804, the transceiver 804 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 303, step 305, step 401, step 403, step 404, step 502, step 504, and step 506, but not limited thereto), and the processor 801 performs at least one of the other steps (for example, step 201, step 203, step 205, step 207, step 301, step 304, step 402, step 405, step 501, step 503, step 505, and step 507, but not limited thereto).

[0356] 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.

[0357] In some embodiments, terminal 800 may include one or more interface circuits 803. Optionally, interface circuit 803 is connected to memory 802. Interface circuit 803 may be configured to receive signals from memory 802 or other devices, and may be configured to send signals to memory 802 or other devices. For example, interface circuit 803 may read instructions stored in memory 802 and send the instructions to processor 801.

[0358] The terminal 800 described in the above embodiment may be a communication device such as a user device, but the scope of the terminal 800 described in the present disclosure is not limited thereto, and the structure of the terminal 800 may not be limited by FIG8 . 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.

[0359] FIG9 is a schematic diagram of the structure of a chip 900 according to an embodiment of the present disclosure. If the terminal 800 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 900 shown in FIG9 , but the present disclosure is not limited thereto.

[0360] The chip 900 includes one or more processors 901 , and the chip 900 is configured to execute any of the above methods.

[0361] In some embodiments, chip 900 further includes one or more 903. Optionally, interface circuit 903 is connected to memory 902. Interface circuit 903 can be used to receive signals from memory 902 or other devices, and can be used to send signals to memory 902 or other devices. For example, interface circuit 903 can read instructions stored in memory 902 and send the instructions to processor 901.

[0362] In some embodiments, the interface circuit 903 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 303, step 305, step 401, step 403, step 404, step 502, step 504, step 506, but not limited to these), and the processor 901 executes at least one of the other steps (for example, step 201, step 203, step 205, step 207, step 301, step 304, step 402, step 405, step 501, step 503, step 505, step 507, but not limited to these).

[0363] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0364] In some embodiments, the chip 900 further includes one or more memories 902 for storing instructions. Alternatively, all or part of the memory 902 may be external to the chip 900.

[0365] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the terminal 800, the terminal 800 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.

[0366] The present disclosure also provides a program product, which, when executed by the terminal 800, enables the terminal 800 to perform any of the above methods. Optionally, the program product is a computer program product.

[0367] 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 data frame transmission method, characterized in that: The method comprises: The transmitting end determines a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies whether the first data frame is a data frame repeatedly transmitted during a process in which a station device STA switches from a first access point device AP to a second AP; The first data frame is sent.

2. The data frame transmission method according to claim 1, characterized in that: The first identification information includes a first identification bit; The first identification bit is set to a first parameter value, identifying the first data frame as a data frame repeatedly transmitted during a process in which the STA switches from the first AP to the second AP; The first identification bit is set to a second parameter value, indicating that the first data frame is not a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

3. The data frame transmission method according to claim 1 or 2, characterized in that: The first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first identification information includes a second identification bit, a third identification bit and a fourth identification bit: The second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached; The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; The target link is a transmission link between the STA and the second AP; The fourth identification bit identifies the MAC address information of the second AP or a second AP MLD to which the second AP is attached under the target link.

4. The data frame transmission method according to any one of claims 1 to 3, characterized in that: The first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, and the first data frame uses the same sequence number space SNS on the first AP side and the second AP side.

5. The method according to claim 4, characterized in that The receiving end determines, according to at least one of the SNS of the first data frame and the first identification information, whether the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

6. The method according to claim 5, characterized in that: The receiving end determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, including at least one of the following: The receiving end determines that the first data frame uses the same SNS on the first AP side and the second AP side, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP; The receiving end determines that the first identification bit is set to a first parameter value, and determines that the first data frame is a data frame repeatedly transmitted during a process in which the STA switches from the first AP to the second AP; The receiving end determines that the second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP MLD, the third identification bit identifies the MAC address information of the STA or the non-AP MLD under the target link, and the fourth identification bit identifies the MAC address information of the second AP or the second AP MLD under the target link, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

7. The method according to claim 5 or 6, characterized in that: If the receiving end determines that the first data frame is a data frame repeatedly transmitted during a process in which the STA switches from the first AP to the second AP, and the first AP MLD is the same as the second AP MLD, determine that the first data frame is a data frame repeatedly transmitted during a process in which the STA switches from the first AP to the second AP within the AP MLD; If the receiving end determines that the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP, and the first AP MLD is different from the second AP MLD, it is determined that the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP between AP MLDs.

8. A data frame transmission method, characterized in that: The method comprises: The receiving end receives a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies whether the first data frame is a data frame transmitted to the second AP during the process of STA switching from the first AP to the second AP.

9. The data frame transmission method according to claim 8, characterized in that: The first identification information includes a first identification bit; The first identification bit is set to a first parameter value, identifying the first data frame as a data frame repeatedly transmitted during a process in which the STA switches from the first AP to the second AP; The first flag is set to a second parameter value, indicating that the first data frame is not a STA switching from a first AP to a second AP The data frames are transmitted repeatedly during the process.

10. The data frame transmission method according to claim 8 or 9, characterized in that: The first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first access point device AP to the second AP, and the first identification information includes a second identification bit, a third identification bit and a fourth identification bit: The second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP MLD to which the first AP is attached; The third flag bit identifies the MAC address information of the STA or the non-AP MLD to which the STA is attached under the target link; The target link is a transmission link between the STA and the second AP; The fourth identification bit identifies the MAC address information of the second AP or a second AP MLD to which the second AP is attached under the target link.

11. The data frame transmission method according to any one of claims 5 to 10, characterized in that: The first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first access point device AP to the second AP, and the first data frame uses the same SNS on the first AP side and the second AP side.

12. The method according to claim 11, characterized in that The method further comprises: The receiving end determines, according to at least one of the SNS of the first data frame and the first identification information, whether the first data frame is a data frame repeatedly transmitted during a process in which a STA switches from a first AP to a second AP.

13. The method according to claim 12, characterized in that: The receiving end determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP, including at least one of the following: The receiving end determines that the first data frame uses the same SNS on the first AP side and the second AP side, and determines that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP; The receiving end determines that the first identification bit is set to a first parameter value, and determines that the first data frame is a data frame repeatedly transmitted during a process in which the STA switches from the first AP to the second AP; The receiving end determines that the second identification bit identifies the MAC address information of the first AP or the MAC address information of the first AP MLD; The third identification bit identifies the MAC address information of the STA or the non-AP MLD under the target link; and the fourth identification bit identifies the MAC address information of the second AP or the second AP MLD under the target link, determining that the first data frame is a data frame repeatedly transmitted during the process of the STA switching from the first AP to the second AP.

14. The method according to claim 12 or 13, characterized in that: The method further comprises: If it is determined that the first data frame is a data frame repeatedly transmitted during a process in which the STA switches from the first AP to the second AP, and the first AP MLD is the same as the second AP MLD, it is determined that the first data frame is a data frame repeatedly transmitted during a process in which the STA switches from the first AP to the second AP within the AP MLD; If it is determined that the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP, and the first AP MLD is different from the second AP MLD, it is determined that the first data frame is a data frame repeatedly transmitted during the process of STA switching from the first AP to the second AP between AP MLDs.

15. A communication device, characterized in that: The communication device is a transmitting end, comprising: A determination module, configured to determine a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies whether the first data frame is a data frame repeatedly transmitted during a process in which a station device STA switches from a first access point device AP to a second AP; A sending module is used to send the first data frame.

16. A communication device, characterized in that: The communication device is a receiving end, comprising: The receiving module is used to receive a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies whether the first data frame is a data frame transmitted to the second AP during the process of the station device STA switching from the first access point device AP to the second AP.

17. A communication device, characterized in that: The communication device is a transmitting end, comprising: one or more processors; Wherein, the communication device is used to execute the data frame transmission method according to any one of claims 1 to 7.

18. A communication device, characterized in that: The communication device is a receiving end, comprising: one or more processors; Wherein, the communication device is used to execute the data frame transmission method according to any one of claims 8 to 14.

19. A communication system, characterized in that: It includes a first communication device and a second communication device; wherein the first communication device is a transmitting end, the second communication device is a receiving end, the first communication device is configured to implement the data frame transmission method described in any one of claims 1 to 7, and the second communication device is configured to implement the data frame transmission method described in any one of claims 8 to 14.

20. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is enabled to execute the data frame transmission method according to any one of claims 1 to 7, or execute the data frame transmission method according to any one of claims 8 to 14.

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