Data frame transmission method, terminal and communication system

Abstract

The embodiment of the invention relates to a data frame transmission method, a terminal and a communication system. The data frame transmission method comprises the following steps: a sending end determines a first data frame; wherein the first data frame comprises first identification information, and the first identification information identifies that station equipment STA is switched from a first AP to a second AP, and the second AP sends or receives the first data frame; the data transmission direction after switching is indicated through the first identification information, additional authentication or request and response processes do not exist, and time delay caused by switching is reduced to the maximum extent; and a new message interaction process is not introduced in the switching process, so that the situation of data flow interruption caused by the new message interaction process is avoided.

Description

Data frame transmission method, terminal 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, a terminal, and a communication system. Background Art

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

[0003] In UHR, low-latency service transmission mechanisms will be further enhanced. To ensure the transmission of low-latency services, station devices (STAs) may switch between multiple access points (APs). Therefore, a mechanism is needed to support STA switching between multiple APs to meet the transmission requirements of UHR.

[0004] Summary of the Invention

[0005] Embodiments of the present disclosure provide a data frame transmission method, a terminal, and a communication system to provide a mechanism for supporting STA switching between multiple AP devices.

[0006] In one aspect, an embodiment of the present disclosure provides a data frame transmission method, the method comprising:

[0007] Determine a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies that the STA requests to wake up the receiving end in the power saving state to transmit uplink data;

[0008] Send the first data frame to the second AP.

[0009] On the other hand, an embodiment of the present disclosure further provides a data frame transmission method, the method comprising:

[0010] The receiving end receives a first data frame; wherein, the first data frame includes first identification information, and the first identification information identifies that: the station device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP.

[0011] On the other hand, an embodiment of the present disclosure further provides a terminal, which is a transmitting end and includes:

[0012] 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 indicates that: the station device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP;

[0013] A sending module is used to send the first data frame.

[0014] On the other hand, an embodiment of the present disclosure further provides a terminal, which is a receiving end and includes:

[0015] A first receiving module, configured to receive a first data frame;

[0016] The first data frame includes first identification information, and the first identification information indicates that the station device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP.

[0017] On the other hand, an embodiment of the present disclosure further provides a terminal, which is a transmitting end and includes:

[0018] one or more processors;

[0019] The terminal is used to execute the data frame transmission method described in the embodiment of the present disclosure.

[0020] On the other hand, an embodiment of the present disclosure further provides a terminal, which is a receiving end and includes:

[0021] one or more processors;

[0022] That

[0023] In the embodiment, the terminal is used to execute the data frame transmission method described in the embodiment of the present disclosure.

[0024] An embodiment of the present disclosure also provides a communication system, including a transmitting end and a receiving end; wherein the transmitting end is configured to implement the data frame transmission method described in the embodiment of the present disclosure, and the receiving end is configured to implement the data frame transmission method described in the embodiment of the present disclosure.

[0025] An embodiment of the present disclosure further provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the data frame transmission method described in the embodiment of the present disclosure, or executes the data frame transmission method described in the embodiment of the present disclosure.

[0026] In the embodiment of the present disclosure, the first identification information is carried during the transmission of data frames, and the data transmission direction after switching is indicated in real time through the first identification information. There is no additional authentication or request or response process, thereby minimizing the delay caused by switching; and the switching process does not introduce a new message interaction process, thereby avoiding data interruption caused by the new message interaction process.

[0027] 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

[0028] 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.

[0029] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0030] FIG2 is one of exemplary interaction diagrams of a method provided according to an embodiment of the present disclosure;

[0031] FIG3 is a second exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0032] FIG4 is a third exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0033] FIG5 is a flow chart of a data frame transmission method according to an embodiment of the present disclosure;

[0034] FIG6 is a second flow chart of a data frame transmission method according to an embodiment of the present disclosure;

[0035] FIG7 is a schematic diagram of a terminal structure according to an embodiment of the present disclosure;

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

[0037] FIG9 is a third schematic diagram of the structure of the terminal proposed in an embodiment of the present disclosure;

[0038] FIG10 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] The embodiments of the present disclosure provide a data frame transmission method, a terminal, and a communication system.

[0040] In a first aspect, an embodiment of the present disclosure provides a data frame transmission method, the method comprising:

[0041] The transmitting end determines a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies that: the station device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP;

[0042] Send the first data frame.

[0043] In the above embodiment, the station device STA switches (or roams) from the first AP to the second AP, the second AP sends or receives the first data frame, and seamlessly switches to AP2 for data communication, so that data transmission is uninterrupted.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the first data frame includes a control field, and the first identification information is carried in the control field.

[0045] In the above embodiment, a control field may be carried in the Media Access Control (MAC) frame header of the first data frame, and first identification information may be carried in the control field to identify that the first data frame is sent or received by the second AP after the STA is switched.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the first identification information includes at least one of the following:

[0047] identification information of the second AP;

[0048] Link bitmap identification information;

[0049] Spatial stream number NSS identification information;

[0050] Modulation and coding strategy MCS identification information;

[0051] Roaming type identification information.

[0052] In the above embodiment, the first identification information includes at least one of the above.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the identification information of the second AP includes: a Roaming AP ID identifier or a Roaming AP MLD ID identifier;

[0054] The Roaming AP MLD ID identifier is the ID identifier of the AP MLD to which the second AP is attached.

[0055] In the above embodiment, the identification information of the second AP is used to identify that the first data frame will be sent to the AP indicated by the identifier, or the first data frame will be sent by the AP indicated by the identifier; the identification information of the second AP can be the MAC address information or the association identifier (AID) of the second AP; if the second AP is attached to the AP MLD, the identification information of the second AP is the ID identifier of the AP MLD, such as the MAC address information of the AP MLD.

[0056] In combination with some embodiments of the first aspect, in some embodiments, the link bitmap identification information is set to a first parameter value, identifying the AP of the link corresponding to the link bitmap identification information as the second AP.

[0057] In the above embodiment, the first parameter value is, for example, 1, and the AP of the link with the link bitmap identification information set to 1 is the second AP; for example, when there are multiple optional second APs, the specific second AP can be indicated by the link bitmap identification.

[0058] In combination with some embodiments of the first aspect, in some embodiments, the NSS identification information identifies the number of spatial streams of the first data frame.

[0059] In the above embodiment, the NSS identification information identifies the number of spatial streams used by the first data frame, so that the second AP or STA can receive the first data frame according to the number of spatial streams.

[0060] In combination with some embodiments of the first aspect, in some embodiments, the MCS identification information identifies the modulation and coding mode of the first data frame.

[0061] In the above embodiment, the MCS identification information identifies the modulation and coding scheme adopted by the first data frame, so that the second AP or STA can receive the first data frame according to the modulation and coding scheme.

[0062] In combination with some embodiments of the first aspect, in some embodiments, the roam type identification information identifies that the switching operation of the STA from the first AP to the second AP is link-level roaming or MLD-level roaming.

[0063] In the above embodiment, link-level roaming is performed, for example, the first AP and the second AP are attached to the same AP MLD, and the STA switches from the working link of AP1 to the working link of AP2. MLD-level roaming is performed, for example, the first AP and the second AP are not attached to the same AP MLD, and the STA switches from the AP MLD attached to AP1 to the AP MLD attached to AP2.

[0064] In combination with some embodiments of the first aspect, in some embodiments, the content of the roam type identification information is carried in an extended capabilities information element or a UHR operation information element sent by the STA during the initial association process.

[0065] In the above embodiment, the STA (non-AP MLD) and the AP (AP MLD) may carry roam type identification information during the initial association process to indicate whether the roaming is switched to link-level roaming or MLD-level roaming. Specifically, the identification bit may be used in the extended capabilities information element or the UHR operation information element sent during the initial association process.

[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 that: the station device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP.

[0068] In combination with some embodiments of the second aspect, in some embodiments, the first data frame includes a control field, and the first identification information is carried in the control field.

[0069] In conjunction with some embodiments of the second aspect, in some embodiments, the first identification information includes at least one of the following:

[0070] identification information of the second AP;

[0071] Link bitmap identification information;

[0072] Spatial stream number NSS identification information;

[0073] Modulation and coding strategy MCS identification information;

[0074] Roaming type identification information.

[0075] In conjunction with some embodiments of the second aspect, in some embodiments, the identification information of the second AP includes: a Roaming AP ID identifier or a Roaming AP MLD ID identifier;

[0076] The Roaming AP MLD ID identifier is the ID identifier of the AP MLD to which the second AP is attached.

[0077] In combination with some embodiments of the second aspect, in some embodiments, the link bitmap identification information is set to a first parameter value, identifying the AP of the link corresponding to the link bitmap identification information as the second AP.

[0078] In combination with some embodiments of the second aspect, in some embodiments, the NSS identification information identifies the number of spatial streams of the first data frame.

[0079] In combination with some embodiments of the second aspect, in some embodiments, the MCS identification information identifies the modulation and coding mode of the first data frame.

[0080] In combination with some embodiments of the second aspect, in some embodiments, the roam type identification information identifies that the switching operation of the STA from the first AP to the second AP is link-level roaming or MLD-level roaming.

[0081] In combination with some embodiments of the second aspect, in some embodiments, the content of the roam type identification information is carried in the extended capabilities information element or the UHR operation information element sent by the STA during the initial association process.

[0082] In a third aspect, an embodiment of the present disclosure further provides a terminal, which is a transmitting end, and the transmitting end includes at least one of a determination module and a sending module; wherein the transmitting end is used to execute the optional implementation method of the first aspect.

[0083] In a fourth aspect, an embodiment of the present disclosure further provides a terminal, which is a receiving end and includes: a first receiving module; wherein the above-mentioned receiving end is used to execute the optional implementation method of the second aspect.

[0084] In a fifth aspect, an embodiment of the present disclosure further provides a terminal, which is a transmitting end and includes:

[0085] one or more processors;

[0086] The terminal is used to execute the optional implementation of the first aspect.

[0087] In a sixth aspect, an embodiment of the present disclosure further provides a terminal, which is a receiving end and includes:

[0088] one or more processors;

[0089] The terminal is used to execute the optional implementation of the second aspect.

[0090] In the seventh aspect, an embodiment of the present disclosure further provides a communication system, comprising a transmitting end and a receiving end; wherein the transmitting end is configured to execute the optional implementation method as described in the first aspect, and the receiving end is configured to execute the optional implementation method as described in the second aspect.

[0091] 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 the optional implementation methods described in the first and second aspects.

[0092] 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 and second aspects.

[0093] 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 and second aspects.

[0094] 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 and second aspects above.

[0095] It is understandable that the above-mentioned transmitting end, receiving end, communication system, storage medium, program product, computer program, chip or chip system are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0096] The present disclosure provides a data frame transmission method, a terminal, and a communication system. In some embodiments, the data frame transmission method, the signal transmission method, the wireless frame transmission method, and other terms are interchangeable, and the information processing system, the communication system, and other terms are interchangeable.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0101] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0110] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0111] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0112] 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.

[0113] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0114] As shown in FIG1 , a communication system 100 includes a transmitting end 101 and a receiving end 102 .

[0115] In the embodiment of the present disclosure, when the first data frame is an uplink data frame, the station device (STA) is the transmitter 101 and the access point device (AP) is the receiver 102; when the first data frame is a downlink data frame, the station device is the receiver 101 and the access point device is the transmitter 102.

[0116] In some embodiments, the site device 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 function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and a wireless terminal device in a smart home.

[0117] Specifically, the site device may be a terminal device or network device with a Wireless Fidelity (WiFi) chip. Optionally, the site device may support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a, as well as the next generation 802.11 protocol, but is not limited thereto.

[0118] In some embodiments, the access point device can be an access point for a mobile terminal to enter a wired network. The AP is equivalent to a bridge connecting a wired network and a wireless network. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet. Specifically, the AP can be a terminal device or a network device with a wireless fidelity chip. Optionally, the AP can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a, as well as support the next generation 802.11 protocol, but is not limited to this.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] The various embodiments of the present disclosure can be applied to wireless local area networks (WLANs), such as those using the 802.11 series of protocols. In a WLAN, a Basic Service Set (BSS) is a fundamental component of a WLAN. A BSS network consists of station devices with some association within a specific coverage area. One scenario of association is that stations communicate directly with each other in an ad hoc network, which is called an Independent Basic Service Set (IBSS). Another more common scenario is that in a BSS network, there is only one central station dedicated to managing the BSS, called an access point, and all other STAs in the network are associated with it. Other stations in the BSS network that are not the central station are called terminals, also called non-AP STAs. Terminals and non-AP STAs are collectively referred to as STAs. When describing STAs, there is no need to distinguish between APs and non-AP STAs. In the same BSS network, due to distance, transmission power, and other factors, a STA cannot detect other STAs that are farther away from it, and the two STAs are each other's hidden nodes.

[0123] FIG2 is one of the interactive schematic diagrams of the data frame transmission method according to an embodiment of the present disclosure. As shown in FIG2 , the method includes:

[0124] Step 201: The transmitting end 101 determines a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies that the station device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP.

[0125] In UHR, low-latency service transmission mechanisms will be further enhanced. During STA low-latency service transmission, STAs may even switch between APs. It is understood that in the embodiments of the present disclosure, the AP may be an AP MLD. For ease of explanation, the embodiments of the present disclosure will be described using an AP as an example. However, this does not constitute a limitation of the embodiments of the present disclosure.

[0126] To meet the latency requirements of low-latency services, STAs may switch between multiple APs in UHR. For example, if the STA's location changes while communicating with AP1 for low-latency services or communicating through AP1's management (such as Tunneled Direct Link Setup), it needs to switch to AP2 to continue transmitting low-latency services. Alternatively, if the STA is communicating with AP1 and the quality of the communication link with AP1 deteriorates when roaming from AP1's coverage area to AP2's, the STA seamlessly switches to AP2 for data communication, ensuring uninterrupted data transmission.

[0127] To achieve seamless data transmission, in the disclosed embodiment, the transmitter 101 determines a first data frame and carries first identification information in the first data frame. The first identification information identifies that the first data frame includes the first identification information, and the first identification information indicates that the station device STA is switching (or roaming) from a first AP to a second AP, and the first data frame is sent or received by the second AP. The second AP is the target AP for the station device to switch; optionally, the first AP can be the AP with which the STA currently maintains a communication connection, and there can be multiple second APs.

[0128] Step 202: The sending end 101 sends the first data frame.

[0129] The transmitting end 101 sends the first data frame to the receiving end. The first data frame carries first identification information, indicating that the STA is about to switch to the second AP, and the first data frame is sent or received by the second AP.

[0130] Specifically, when the first data frame is an uplink data frame, the transmitting end 101 is the STA and the receiving end 102 is the second AP. That is to say, after the STA switches, the second AP after switching continues to receive the uplink data frame (i.e., the first data frame); when the first data frame is a downlink data frame, the transmitting end 101 is the second AP and the receiving end 102 is the STA. After the STA switches, the second AP after switching continues to send downlink data (i.e., the first data frame); in this way, after the STA switches, data interruption can be avoided to meet the UHR requirements for transmission rate and the low-latency service requirements for latency.

[0131] Step 203: The receiving end 102 receives the first data frame.

[0132] In this way, when the communication status of the AP associated with the STA changes, it can switch to another AP for communication, so that data transmission is uninterrupted; for example, if the communication status with the first AP changes, the STA switches to the second AP.

[0133] In related technologies, both fast transition (FT) and BSS transition management (BTM) mechanisms struggle to ensure uninterrupted data flow during handovers. For example, the FT mechanism requires reauthentication, which can easily lead to data interruptions. BTM, which requires a request and response process and is primarily used for handovers between two different physical APs or between two APs attached to different AP MLDs, also struggles to ensure uninterrupted data flow between different APs (or AP MLDs).

[0134] In the embodiment of the present disclosure, the first identification information is carried during the transmission of data frames, and the data transmission direction after switching is indicated in real time through the first identification information. There is no additional authentication or request or response process, thereby minimizing the delay caused by switching; and the switching process does not introduce a new message interaction process, thereby avoiding data interruption caused by the new message interaction process.

[0135] In some embodiments, the first identification information includes: the first data frame includes a control field, and the first identification information is carried in the control field.

[0136] Among them, a control field can be carried in the Media Access Control layer (MAC) frame header part of the first data frame, and the first identification information can be carried in the control field to identify that the first data frame is sent or received by the second AP after the STA is switched.

[0137] In some embodiments, the first identification information includes at least one of the following, that is, one or more of the following information:

[0138] identification information of the second AP;

[0139] Link bitmap identification information;

[0140] Number of spatial streams (NSS) identification information;

[0141] Modulation and Coding Scheme (MCS) identification information;

[0142] Roaming type identification information.

[0143] As shown in FIG2 , the first identification information includes at least one of the aforementioned.

[0144] In some embodiments, the identification information of the second AP includes: a roaming AP ID or a roaming AP MLD ID;

[0145] The Roaming AP MLD ID identifier is the ID identifier of the AP MLD to which the second AP is attached.

[0146] The identification information of the second AP is used to identify that the first data frame will be sent to the AP indicated by the identifier, or that the first data frame will be sent by the AP indicated by the identifier; the identification information of the second AP may be the MAC address information or the association identifier (AID) of the second AP; if the second AP is attached to an AP MLD, the identification information of the second AP is the ID identifier of the AP MLD, such as the MAC address information of the AP MLD.

[0147] In some embodiments, the link bitmap identification information is set to a first parameter value, identifying the AP of the link corresponding to the link bitmap identification information as the second AP.

[0148] Among them, the first parameter value is, for example, 1, then the AP of the link with the link bitmap identification information set to 1 is the second AP; for example, when there are multiple optional second APs, the specific second AP can be indicated by the link bitmap identification.

[0149] In some embodiments, the NSS identification information identifies the number of spatial streams of the first data frame.

[0150] The NSS identification information identifies the number of spatial streams used by the first data frame, so that the second AP or STA can receive the first data frame according to the number of spatial streams.

[0151] In some embodiments, the MCS identification information identifies a modulation and coding scheme of the first data frame.

[0152] The MCS identification information identifies the modulation and coding mode used by the first data frame, so that the second AP or STA can receive the first data frame according to the modulation and coding mode.

[0153] In some embodiments, as shown in FIG2 , the roam type identification information indicates that the handover operation of the STA from the first AP to the second AP is link-level roaming or MLD-level roaming.

[0154] Among them, link-level roaming, for example, the first AP and the second AP are affiliated with the same AP MLD, and the STA switches from the working link of AP1 to the working link of AP2; MLD-level roaming, link-level roaming, for example, the first AP and the second AP are not affiliated with the same AP MLD, and the STA switches from the AP MLD affiliated with AP1 to the AP MLD affiliated with AP2.

[0155] In some embodiments, the content of the roam type identification information is carried in an extended capabilities information element or a UHR operation information element sent by the STA during an initial association process.

[0156] Among them, STA (non-AP MLD) and AP (AP MLD) can carry roam type identification information during the initial association process to indicate the switch to link-level roaming or MLD-level roaming. Specifically, the identification bit can be used in the extended capabilities information element or UHR operation information element sent during the initial association process.

[0157] FIG3 is a second interactive diagram of a data frame transmission method according to an embodiment of the present disclosure, and FIG3 shows a scenario where the first data frame is an uplink data frame. As shown in FIG3 , the method includes:

[0158] Step 301, STA-30 determines an uplink data frame; wherein, the uplink data frame includes first identification information, the first identification information identifies: the station device STA switches from the first AP to the second AP, and the uplink data frame is received by the second AP

[0159] In UHR, to achieve seamless data transmission, in the disclosed embodiment, STA-30 determines an uplink data frame, and carries first identification information in the uplink data frame. The first identification information identifies that the uplink data frame includes the first identification information, and the first identification information indicates that the station device STA is switching (or roaming) from a first AP to a second AP, and the uplink data frame is received by the second AP. The second AP is the target AP for the station device to switch; optionally, the first AP can be the AP with which the STA currently maintains a communication connection, and there can be multiple second APs.

[0160] Step 302: STA-30 sends the uplink data frame.

[0161] STA-30 transmits the uplink data frame to the second AP-31. The uplink data frame carries the first identification information, indicating that the STA is about to switch to the second AP. The uplink data frame is then received by the second AP. This prevents data interruption after the STA switches, thereby meeting the transmission rate requirements of UHR and the latency requirements of low-latency services.

[0162] Step 303: The second AP-31 receives the uplink data frame.

[0163] In this way, when the communication status of the AP associated with the STA changes, it can switch to another AP for communication, so that data transmission is uninterrupted; for example, if the communication status with the first AP changes, the STA switches to the second AP.

[0164] In related technologies, both fast transition (FT) and BSS transition management (BTM) mechanisms struggle to ensure uninterrupted data flow during handovers. For example, the FT mechanism requires reauthentication, which can easily lead to data interruptions. BTM, which requires a request and response process and is primarily used for handovers between two different physical APs or between two APs attached to different AP MLDs, also struggles to ensure uninterrupted data flow between different APs (or AP MLDs).

[0165] In the embodiment of the present disclosure, the first identification information is carried during the transmission of data frames, and the data transmission direction after switching is indicated in real time through the first identification information. There is no additional authentication or request or response process, thereby minimizing the delay caused by switching; and the switching process does not introduce a new message interaction process, thereby avoiding data interruption caused by the new message interaction process.

[0166] In some embodiments, the first identification information includes: the uplink data frame includes a control field, and the first identification information is carried in the control field.

[0167] The media access control layer (MAC) frame header of the uplink data frame may carry a control field, and the control field may carry first identification information to identify that the uplink data frame is received by the second AP after the STA is switched.

[0168] In some embodiments, the first identification information includes at least one of the following, that is, one or more of the following information:

[0169] identification information of the second AP;

[0170] Link bitmap identification information;

[0171] Number of spatial streams (NSS) identification information;

[0172] Modulation and Coding Scheme (MCS) identification information;

[0173] Roaming type identification information.

[0174] As shown in FIG3 , the first identification information includes at least one of the aforementioned ones.

[0175] In some embodiments, the identification information of the second AP includes: a roaming AP ID or a roaming AP MLD ID;

[0176] The Roaming AP MLD ID identifier is the ID identifier of the AP MLD to which the second AP is attached.

[0177] Among them, the identification information of the second AP is used to identify the AP indicated by the identification to which the uplink data frame will be sent; the identification information of the second AP can be the MAC address information or association identifier (AID) of the second AP; if the second AP is attached to the AP MLD, the identification information of the second AP is the ID identifier of the AP MLD, such as the MAC address information of the AP MLD.

[0178] In some embodiments, the link bitmap identification information is set to a first parameter value, identifying the AP of the link corresponding to the link bitmap identification information as the second AP.

[0179] Among them, the first parameter value is, for example, 1, then the AP of the link with the link bitmap identification information set to 1 is the second AP; for example, when there are multiple optional second APs, the specific second AP can be indicated by the link bitmap identification.

[0180] In some embodiments, the NSS identification information identifies the number of spatial streams of the uplink data frame.

[0181] The NSS identification information identifies the number of spatial streams used by the uplink data frame, so that the second AP or STA can receive the uplink data frame according to the number of spatial streams.

[0182] In some embodiments, the MCS identification information identifies the modulation and coding scheme of the uplink data frame.

[0183] The MCS identification information identifies the modulation and coding scheme adopted by the uplink data frame, so that the second AP or STA can receive the uplink data frame according to the modulation and coding scheme.

[0184] In some embodiments, as shown in FIG3 , the roam type identification information indicates that the handover operation of the STA from the first AP to the second AP is link-level roaming or MLD-level roaming.

[0185] Among them, link-level roaming, for example, the first AP and the second AP are affiliated with the same AP MLD, and the STA switches from the working link of AP1 to the working link of AP2; MLD-level roaming, link-level roaming, for example, the first AP and the second AP are not affiliated with the same AP MLD, and the STA switches from the AP MLD affiliated with AP1 to the AP MLD affiliated with AP2.

[0186] In some embodiments, the content of the roam type identification information is carried in an extended capabilities information element or a UHR operation information element sent by the STA during an initial association process.

[0187] Among them, STA (non-AP MLD) and AP (AP MLD) can carry roam type identification information during the initial association process to indicate the switch to link-level roaming or MLD-level roaming. Specifically, the identification bit can be used in the extended capabilities information element or UHR operation information element sent during the initial association process.

[0188] FIG4 is a second interactive diagram of a data frame transmission method according to an embodiment of the present disclosure, and FIG4 shows a scenario where the first data frame is a downlink data frame. As shown in FIG4 , the method includes:

[0189] Step 401, the second AP-31 determines a downlink data frame; wherein the downlink data frame includes first identification information, the first identification information identifies: the station device STA-30 switches from the first AP to the second AP-31, and the downlink data frame is sent by the second AP-31

[0190] In the UHR, to achieve seamless data transmission, in the disclosed embodiment, the second AP-31 determines a downlink data frame, and carries first identification information in the downlink data frame. The first identification information identifies that the downlink data frame includes the first identification information, and the first identification information indicates that the station device STA is switching (or roaming) from the first AP to the second AP, and the downlink data frame is sent by the second AP. The second AP is the target AP for the station device to switch; optionally, the first AP can be the AP that currently maintains a communication connection with the STA, and there can be multiple second APs.

[0191] Step 402: The second AP-31 sends the downlink data frame.

[0192] The second AP-31 sends the downlink data frame to the STA-30, carrying the first identification information in the downlink data frame, indicating that the STA will be handed over to the second AP, and the downlink data frame is sent by the second AP. In this way, after the STA is handed over, data interruption can be avoided, thereby meeting the transmission rate requirements of UHR and the latency requirements of low-latency services.

[0193] Step 403: STA-30 receives the downlink data frame.

[0194] In this way, when the communication status of the AP associated with the STA changes, it can switch to another AP for communication, so that data transmission is uninterrupted; for example, if the communication status with the first AP changes, the STA switches to the second AP.

[0195] In related technologies, both fast transition (FT) and BSS transition management (BTM) mechanisms struggle to ensure uninterrupted data flow during handovers. For example, the FT mechanism requires reauthentication, which can easily lead to data interruptions. BTM, which requires a request and response process and is primarily used for handovers between two different physical APs or between two APs attached to different AP MLDs, also struggles to ensure uninterrupted data flow between different APs (or AP MLDs).

[0196] In the embodiment of the present disclosure, the first identification information is carried during the transmission of data frames, and the data transmission direction after switching is indicated in real time through the first identification information. There is no additional authentication or request or response process, thereby minimizing the delay caused by switching; and the switching process does not introduce a new message interaction process, thereby avoiding data interruption caused by the new message interaction process.

[0197] In some embodiments, the first identification information includes: the downlink data frame includes a control field, and the first identification information is carried in the control field.

[0198] The media access control layer (MAC) frame header of the downlink data frame may carry a control field, and the control field may carry first identification information to identify that the downlink data frame is sent by the second AP after the STA is switched.

[0199] In some embodiments, the first identification information includes at least one of the following, that is, one or more of the following information:

[0200] identification information of the second AP;

[0201] Link bitmap identification information;

[0202] Number of spatial streams (NSS) identification information;

[0203] Modulation and Coding Scheme (MCS) identification information;

[0204] Roaming type identification information.

[0205] As shown in FIG4 , the first identification information includes at least one of the aforementioned.

[0206] In some embodiments, the identification information of the second AP includes: a roaming AP ID or a roaming AP MLD ID;

[0207] The Roaming AP MLD ID identifier is the ID identifier of the AP MLD to which the second AP is attached.

[0208] Among them, the identification information of the second AP is used to indicate that the downlink data frame will be sent by the AP indicated by the identification information; the identification information of the second AP can be the MAC address information or association identifier (AID) of the second AP; if the second AP is attached to the AP MLD, the identification information of the second AP is the ID identifier of the AP MLD, such as the MAC address information of the AP MLD.

[0209] In some embodiments, the link bitmap identification information is set to a first parameter value, identifying the AP of the link corresponding to the link bitmap identification information as the second AP.

[0210] Among them, the first parameter value is, for example, 1, then the AP of the link with the link bitmap identification information set to 1 is the second AP; for example, when there are multiple optional second APs, the specific second AP can be indicated by the link bitmap identification.

[0211] In some embodiments, the NSS identification information identifies the number of spatial streams of the downlink data frame.

[0212] The NSS identification information identifies the number of spatial streams used by the downlink data frame, so that the second AP or STA can receive the downlink data frame according to the number of spatial streams.

[0213] In some embodiments, the MCS identification information identifies the modulation and coding scheme of the downlink data frame.

[0214] The MCS identification information identifies the modulation and coding scheme adopted by the downlink data frame, so that the second AP or STA can receive the downlink data frame according to the modulation and coding scheme.

[0215] In some embodiments, as shown in FIG4 , the roam type identification information indicates that the handover operation of the STA from the first AP to the second AP is link-level roaming or MLD-level roaming.

[0216] Among them, link-level roaming, for example, the first AP and the second AP are affiliated with the same AP MLD, and the STA switches from the working link of AP1 to the working link of AP2; MLD-level roaming, link-level roaming, for example, the first AP and the second AP are not affiliated with the same AP MLD, and the STA switches from the AP MLD affiliated with AP1 to the AP MLD affiliated with AP2.

[0217] In some embodiments, the content of the roam type identification information is carried in an extended capabilities information element or a UHR operation information element sent by the STA during an initial association process.

[0218] Among them, STA (non-AP MLD) and AP (AP MLD) can carry roam type identification information during the initial association process to indicate the switch to link-level roaming or MLD-level roaming. Specifically, the identification bit can be used in the extended capabilities information element or UHR operation information element sent during the initial association process.

[0219] 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", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0220] 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.

[0221] In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.

[0222] 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.

[0223] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0224] 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.

[0225] 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, step 202 can be implemented as an independent embodiment, step 203 can be implemented as an independent embodiment, step 301 can be implemented as an independent embodiment, step 302 can be implemented as an independent embodiment, step 303 can be implemented as an independent embodiment, step 401 can be implemented as an independent embodiment, step 402 can be implemented as an independent embodiment, and step 403 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 202 and step 203 can be implemented as an independent embodiment, the combination of step 301 and step 302 can be implemented as an independent embodiment, the combination of step 302 and step 303 can be implemented as an independent embodiment, the combination of step 401 and step 402 can be implemented as an independent embodiment, and the combination of step 402 and step 403 can be implemented as an independent embodiment, but is not limited thereto.

[0226] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 to FIG. 4 .

[0227] FIG5 is a flowchart of a data frame transmission method according to an embodiment of the present disclosure.

[0228] As shown in FIG5 , the above method may be applied to the transmitting end 101 and includes:

[0229] Step 501: The transmitting end determines a first data frame; wherein the first data frame includes first identification information, and the first identification information indicates that a station device STA is switched from a first AP to a second AP, and the first data frame is sent or received by the second AP;

[0230] Step 502: Send the first data frame.

[0231] Optionally, in an embodiment of the present disclosure, optionally, in an embodiment of the present disclosure, the first data frame includes a control field, and the first identification information is carried in the control field.

[0232] Optionally, in the embodiment of the present disclosure, the first identification information includes at least one of the following:

[0233] identification information of the second AP;

[0234] Link bitmap identification information;

[0235] Spatial stream number NSS identification information;

[0236] Modulation and coding strategy MCS identification information;

[0237] Roaming type identification information.

[0238] Optionally, in the embodiment of the present disclosure, the identification information of the second AP includes: a Roaming AP ID identifier or a Roaming AP MLD ID identifier;

[0239] The Roaming AP MLD ID identifier is the ID identifier of the AP MLD to which the second AP is attached.

[0240] Optionally, in an embodiment of the present disclosure, the link bitmap identification information is set to a first parameter value, identifying the AP of the link corresponding to the link bitmap identification information as the second AP.

[0241] Optionally, in an embodiment of the present disclosure, the NSS identification information identifies the number of spatial streams of the first data frame.

[0242] Optionally, in the embodiment of the present disclosure, the MCS identification information identifies the modulation and coding mode of the first data frame.

[0243] Optionally, in the embodiment of the present disclosure, the roam type identification information identifies that the handover operation of the STA from the first AP to the second AP is link-level roaming or MLD-level roaming.

[0244] Optionally, in an embodiment of the present disclosure, the content of the roam type identification information is carried in an extended capabilities information element or a UHR operation information element sent by the STA during the initial association process.

[0245] 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 501 may be implemented as an independent embodiment, and step 502 may be implemented as an independent embodiment; the combination of step 501 and step 502 may be implemented as an independent embodiment, but is not limited thereto.

[0246] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 5 .

[0247] FIG6 is a second flowchart of a data frame transmission method according to an embodiment of the present disclosure.

[0248] As shown in FIG6 , the method is applied to the receiving end 102, and the method includes:

[0249] Step 601: Receive a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies that a station device STA switches from a first AP to a second AP, and the first data frame is sent or received by the second AP.

[0250] Optionally, in an embodiment of the present disclosure, the first data frame includes a control field, and the first identification information is carried in the control field.

[0251] Optionally, in the embodiment of the present disclosure, the first identification information includes at least one of the following:

[0252] identification information of the second AP;

[0253] Link bitmap identification information;

[0254] Spatial stream number NSS identification information;

[0255] Modulation and coding strategy MCS identification information;

[0256] Roaming type identification information.

[0257] Optionally, in the embodiment of the present disclosure, the identification information of the second AP includes: a Roaming AP ID identifier or a Roaming AP MLD ID identifier;

[0258] The Roaming AP MLD ID identifier is the ID identifier of the AP MLD to which the second AP is attached.

[0259] Optionally, in an embodiment of the present disclosure, the link bitmap identification information is set to a first parameter value, identifying the AP of the link corresponding to the link bitmap identification information as the second AP.

[0260] Optionally, in an embodiment of the present disclosure, the NSS identification information identifies the number of spatial streams of the first data frame.

[0261] Optionally, in the embodiment of the present disclosure, the MCS identification information identifies the modulation and coding mode of the first data frame.

[0262] Optionally, in the embodiment of the present disclosure, the roam type identification information identifies that the handover operation of the STA from the first AP to the second AP is link-level roaming or MLD-level roaming.

[0263] Optionally, in an embodiment of the present disclosure, the content of the roam type identification information is carried in an extended capabilities information element or a UHR operation information element sent by the STA during the initial association process.

[0264] 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.

[0265] 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.

[0266] 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.

[0267] Figure 7 is a schematic diagram of the structure of a transmitting end proposed in an embodiment of the present disclosure. As shown in Figure 7, the transmitting end 700 may include at least one of: a determining module 701, a sending module 702, and the like.

[0268] In some embodiments, the above-mentioned determination module 701 is used to determine the first data frame; wherein, the first data frame includes first identification information, and the first identification information indicates that: the site device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP; the sending module 702 sends the first data frame.

[0269] Optionally, the determination module 701 is configured to execute at least one of the communication steps (e.g., step 201, step 301, step 401, step 501, 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 702 is configured to execute at least one of the steps (e.g., step 202, step 302, step 402, step 502, but not limited thereto).

[0270] FIG8 is a schematic diagram of the structure of a receiving end proposed in an embodiment of the present disclosure. As shown in FIG8 , a receiving end 800 may include: a first receiving module 801 .

[0271] In some embodiments, the first receiving module 801 is configured to receive a first data frame;

[0272] The first data frame includes first identification information, and the first identification information indicates that the station device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP.

[0273] Optionally, the first receiving module 801 is used to execute at least one of the communication steps (such as step 203, step 303, step 403, step 601, but not limited thereto) performed by the receiving end 102 in any of the above methods, which will not be repeated here.

[0274] Figure 9 is a schematic diagram of the structure of a terminal 900 (e.g., user equipment) proposed in an embodiment of the present disclosure. Terminal 900 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 900 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.

[0275] As shown in Figure 9, terminal 900 includes one or more processors 901. Processor 901 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Terminal 900 is used to perform any of the above methods.

[0276] In some embodiments, the terminal 900 further includes one or more memories 902 for storing instructions. Optionally, all or part of the memories 902 may be located outside the terminal 900.

[0277] In some embodiments, the terminal 900 further includes one or more transceivers 904. When the terminal 900 includes one or more transceivers 904, the transceiver 904 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step 202, step 302, step 402, step 502, step 203, step 303, step 403, and step 601, but not limited thereto), and the processor 901 performs at least one of the other steps (for example, step 201, step 301, step 401, and step 501, but not limited thereto).

[0278] 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.

[0279] In some embodiments, terminal 900 may include one or more interface circuits 903. Optionally, interface circuit 903 is connected to memory 902. Interface circuit 903 may be configured to receive signals from memory 902 or other devices, and may be configured to send signals to memory 902 or other devices. For example, interface circuit 903 may read instructions stored in memory 902 and send the instructions to processor 901.

[0280] The terminal 900 described in the above embodiment may be a communication device such as a user device, but the scope of the terminal 900 described in the present disclosure is not limited thereto, and the structure of the terminal 900 may not be limited by FIG. 9 . 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.

[0281] FIG10 is a schematic diagram of the structure of a chip 1000 according to an embodiment of the present disclosure. If the terminal 900 is a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 1000 shown in FIG10 , but the present disclosure is not limited thereto.

[0282] The chip 1000 includes one or more processors 1001 , and the chip 1000 is configured to execute any of the above methods.

[0283] In some embodiments, chip 1000 further includes one or more 1003. Optionally, interface circuit 1003 is connected to memory 1002. Interface circuit 1003 can be used to receive signals from memory 1002 or other devices, and interface circuit 1003 can be used to send signals to memory 1002 or other devices. For example, interface circuit 1003 can read instructions stored in memory 1002 and send the instructions to processor 1001.

[0284] In some embodiments, the interface circuit 1003 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step 202, step 302, step 402, step 502, step 203, step 303, step 403, step 601, but not limited to these), and the processor 1001 executes at least one of the other steps (for example, step 201, step 301, step 401, step 501, but not limited to these).

[0285] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0286] In some embodiments, the chip 1000 further includes one or more memories 1002 for storing instructions. Alternatively, all or part of the memory 1002 may be external to the chip 1000.

[0287] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the terminal 900, the terminal 900 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0288] The present disclosure also provides a program product, which, when executed by the terminal 900, enables the terminal 900 to perform any of the above methods. Optionally, the program product is a computer program product.

[0289] 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 that: the station device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP; The first data frame is sent.

2. The data frame transmission method according to claim 1, characterized in that: The first data frame includes a control field, and the first identification information is carried in the control field.

3. The data frame transmission method according to claim 1 or 2, characterized in that: The first identification information includes at least one of the following: identification information of the second AP; Link bitmap identification information; Spatial stream number NSS identification information; Modulation and coding strategy MCS identification information; Roaming type identification information.

4. The data frame transmission method according to claim 3, characterized in that: The identification information of the second AP includes: a Roaming AP ID identification or a Roaming AP MLD ID identification; The Roaming AP MLD ID identifier is the ID identifier of the AP MLD to which the second AP belongs.

5. The data frame transmission method according to claim 3, characterized in that: The link bitmap identification information is set to a first parameter value, identifying an AP of a link corresponding to the link bitmap identification information as the second AP.

6. The data frame transmission method according to claim 3, characterized in that: The roam type identification information indicates that the switching operation of the STA from the first AP to the second AP is link-level roaming or MLD-level roaming.

7. The data frame transmission method according to claim 6, characterized in that: The content of the roam type identification information carries the extended capabilities information element or the UHR operation information element sent by the STA during the initial association process.

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 that: the station device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP.

9. The data frame transmission method according to claim 8, characterized in that: The first data frame includes a control field, and the first identification information is carried in the control field.

10. The data frame transmission method according to claim 8 or 9, characterized in that: The first identification information includes at least one of the following: identification information of the second AP; Link bitmap identification information; Spatial stream number NSS identification information; Modulation and coding strategy MCS identification information; Roaming type identification information.

11. The data frame transmission method according to claim 10, characterized in that: The identification information of the second AP includes: a Roaming AP ID identification or a Roaming AP MLD ID identification; The Roaming AP MLD ID identifier is the ID identifier of the AP MLD to which the second AP belongs.

12. The data frame transmission method according to claim 10, characterized in that: The link bitmap identification information is set to a first parameter value, identifying an AP of a link corresponding to the link bitmap identification information as the second AP.

13. The data frame transmission method according to claim 10, characterized in that: The roam type identification information indicates that the switching operation of the STA from the first AP to the second AP is link-level roaming or MLD-level roaming.

14. The data frame transmission method according to claim 13, characterized in that: The content of the roam type identification information is carried in the extended capabilities information element or the UHR operation information element sent by the STA during the initial association process.

15. A terminal, the terminal being a transmitting end, characterized in that: The terminal comprises: 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 that: a station device STA switches from a first AP to a second AP, and the first data frame is sent or received by the second AP; A sending module is used to send the first data frame.

16. A terminal, the terminal being a receiving end, characterized in that: The terminal comprises: A first receiving module, used for receiving a first data frame; The first data frame includes first identification information, and the first identification information identifies that the station device STA switches from the first AP to the second AP, and the first data frame is sent or received by the second AP.

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

18. A terminal, the terminal being a receiving end, characterized in that: include: one or more processors; Wherein, the terminal 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 transmitting end and a receiving end; wherein the transmitting end is configured to implement the data frame transmission method according to any one of claims 1 to 7, and the receiving end is configured to implement the data frame transmission method according to 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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