Communication method, access point device, station device, and communication system

Abstract

Embodiments of the present disclosure relate to a communication method, an access point (AP) device, a station device, and a communication system. The communication method is applied to an AP device, the AP device supporting multi-link communication. The method comprises: under a first link, receiving a first radio frame sent by a station device, wherein the first radio frame comprises target request information, and the target request information identifies the AP device that the station device requests to wake up under a target link for the purpose of receiving a data frame sent by the station device; and upon receiving the first radio frame, the AP device waking up in advance or waking up upon arrival of a wake-up period under the target link, receiving a trigger frame sent by the station device, and receiving an uplink data frame. The embodiments of the present disclosure provide a wake-up mechanism for an AP in a power saving state.

Description

Communication method, access point device, site device and communication system Technical Field

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

[0002] 802.11bn will enhance existing power-saving technologies and study how APs can save power with minimal impact on associated STAs (including 802.11bn STAs and pre-11bn STAs).

[0003] In 802.11ah, APs can save power outside of TWT SPs. However, 802.11ah primarily applies to the sub-1 GHz spectrum, so backward compatibility is not a concern. In 802.11bn, backward compatibility issues after the AP enters power-saving mode must be considered, such as whether to respond to active scans by pre-11bn STAs. Furthermore, in 802.11bn, devices may also support multi-link communication.

[0004] Summary of the Invention

[0005] The embodiments of the present disclosure provide a communication method, an access point device, a station device, and a communication system to enhance a power saving mechanism.

[0006] In one aspect, an embodiment of the present disclosure provides a communication method, applied to an access point device, wherein the access point device supports multi-link communication, the method comprising:

[0007] receiving, under a first link, a first radio frame sent by a station device; wherein the first radio frame includes target request information, the target request information indicating that the station device requests to wake up the access point device under the target link to receive a data frame sent by the station device;

[0008] The target request information includes multi-link information, and the multi-link information identifies the.

[0009] On the other hand, an embodiment of the present disclosure further provides a communication method, applied to a site device, the method comprising:

[0010] Determine a first radio frame; wherein the first radio frame includes target request information, the target request information identifies that the site device requests to wake up the access point device under the target link to receive the data frame sent by the site device; the target request information includes multi-link information, the multi-link information identifies the target link;

[0011] In a first link, a first radio frame is sent to the access point device.

[0012] On the other hand, an embodiment of the present disclosure further provides an access point device, wherein the access point device supports multi-link communication, and the access point device includes:

[0013] a receiving module, configured to receive, under a first link, a first radio frame sent by a station device; wherein the first radio frame includes target request information, the target request information identifying that the station device requests to wake up the access point device under a target link to receive a data frame sent by the station device;

[0014] The target request information includes multi-link information, and the multi-link information identifies the target link.

[0015] On the other hand, an embodiment of the present disclosure further provides a site device, the site device including:

[0016] a determining module configured to determine a first radio frame; wherein the first radio frame includes target request information, the target request information identifying that the site device requests to wake up the access point device under the target link to receive a data frame sent by the site device; the target request information includes multi-link information, the multi-link information identifying the target link;

[0017] The sending module is configured to send a first wireless frame to the access point device under a first link.

[0018] On the other hand, an embodiment of the present disclosure further provides an access point device, wherein the access point device supports multi-link communication, including:

[0019] one or more processors;

[0020] The access point device is used to implement the communication method described in the embodiment of the present disclosure.

[0021] On the other hand, an embodiment of the present disclosure further provides a site device, including:

[0022] one or more processors;

[0023] The site device is used to execute the communication method described in the embodiment of the present disclosure.

[0024] An embodiment of the present disclosure further provides a communication system, including an access point device and a site device; wherein the access point device is configured to implement the communication method described in the embodiment of the present disclosure, and the site device is configured to implement the communication method described in the embodiment of the present disclosure.

[0025] The embodiment of the present disclosure further provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the communication method as described in the embodiment of the present disclosure.

[0026] In an embodiment of the present disclosure, an access point device receives a first radio frame sent by a station device under a first link; wherein the first radio frame includes target request information, which indicates that the station device requests to wake up the access point device under a target link to receive data frames sent by the station device; after receiving the first radio frame, the access point device may wake up in advance under the target link or wake up when a wake-up period arrives, receive a trigger frame sent by the station device, and receive uplink data frames. This embodiment of the present disclosure provides a wake-up mechanism for an AP in a power-saving state.

[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 an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0031] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure;

[0032] FIG4 is a second flow chart of the communication method provided in an embodiment of the present disclosure;

[0033] FIG5 is a schematic structural diagram of an access point device proposed in an embodiment of the present disclosure;

[0034] FIG6 is a schematic diagram of the structure of a site device proposed in an embodiment of the present disclosure;

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

[0036] FIG8 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] The embodiments of the present disclosure provide a communication method, an access point device, a station device, and a communication system.

[0038] In a first aspect, an embodiment of the present disclosure provides a communication method, applied to an access point device, wherein the access point device supports multi-link communication, the method comprising:

[0039] receiving, under a first link, a first radio frame sent by a station device; wherein the first radio frame includes target request information, the target request information indicating that the station device requests to wake up the access point device under the target link to receive a data frame sent by the station device;

[0040] The target request information includes multi-link information, and the multi-link information identifies the target link.

[0041] In the above embodiment, after receiving the first radio frame, the access point device may wake up in advance under the target link or wake up when the wake-up period arrives, thereby providing a wake-up mechanism for the AP in a power-saving state.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, after receiving the first radio frame sent by the site device, the method includes:

[0043] Waking up in advance on the target link and receiving a trigger frame sent by the site device;

[0044] or

[0045] The target link wakes up when the wake-up period of the target link arrives, and receives the trigger frame sent by the site device.

[0046] In the above embodiment, the access point device may wake up in advance under the target link or wake up when the wake-up period arrives, receive the trigger frame sent by the station device, and receive the uplink data frame.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, waking up in advance on the target link and receiving a trigger frame sent by the site device includes:

[0048] In the first link, the system replies with a confirmation frame to the site device, wakes up after performing time synchronization with the target link, and receives a trigger frame sent by the site device.

[0049] In the above embodiment, the wake-up mechanism of the AP in the power saving state is further improved.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, after waking up in advance on the target link and receiving a trigger frame sent by the site device, the method includes:

[0051] During the listening period of the working link of the access point device, if a probe request frame or a multi-connection probe request frame is received, the access point device wakes up under the working link and responds to the probe request frame or the multi-connection probe request frame.

[0052] In the above embodiment, it is defined that the access point device normally performs the listening operation and the waking operation, etc. within the listening period, so as to achieve protocol compatibility.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the duration of the listening period and / or the sleeping period overlaps with the duration of the quiet element of the access point device.

[0054] In the above embodiment, the duration of the listening period and / or the sleep period of the access point device is overlapped, partially overlapped, or completely overlapped with the duration of the quiet element of the access point device to avoid unnecessary wake-up of other STAs during the listening period and / or the sleep period.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the first radio frame includes an RTS frame or an MU-RTS frame;

[0056] The first radio frame includes first identification information, where the first identification information identifies each of the target links.

[0057] In the above embodiment, the working link that identifies the AP to be awakened in advance is realized through the first identification information.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, before receiving the first radio frame sent by the site device under the first link, the method further includes:

[0059] Determine a second radio frame; wherein the second radio frame includes power saving PS state information of each working link of the access point device; the PS state information includes listening cycle information and sleep cycle information;

[0060] The second radio frame is sent.

[0061] The access point device carries the PS state information of each working link in the second radio frame, so that the site device can determine how to wake up the access point device according to the PS state information when uplink data needs to be transmitted.

[0062] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0063] Determine a first radio frame; wherein the first radio frame includes target request information, the target request information identifies that the site device requests to wake up the access point device under the target link to receive the data frame sent by the site device; the target request information includes multi-link information, the multi-link information identifies the target link;

[0064] In a first link, a first radio frame is sent to the access point device.

[0065] In conjunction with some embodiments of the second aspect, in some embodiments, after sending the first radio frame to the access point device under the first link, the method includes:

[0066] Sending a trigger frame to the access point device under the target link.

[0067] In conjunction with some embodiments of the second aspect, in some embodiments, sending a trigger frame to the access point device under the target link includes:

[0068] Under the first link, an acknowledgment frame replied by the access point device is received, and under the target link, a trigger frame is sent to the access point device.

[0069] In conjunction with some embodiments of the second aspect, in some embodiments, after sending a trigger frame to the access point device under the target link, the method includes:

[0070] During a listening period of a working link of the access point device, a probe request frame or a multi-connection probe request frame is sent to the access point device, and a response message of the access point device to the probe request frame or the multi-connection probe request frame is received.

[0071] In combination with some embodiments of the second aspect, in some embodiments, the duration of the listening period and / or the sleeping period overlaps with the duration of the quiet element of the access point device.

[0072] In conjunction with some embodiments of the second aspect, in some embodiments, the first radio frame includes an RTS frame or an MU-RTS frame;

[0073] The first radio frame includes first identification information, where the first identification information identifies each of the target links.

[0074] In conjunction with some embodiments of the second aspect, in some embodiments, before determining the first radio frame, the method further includes:

[0075] A second radio frame is received; wherein the second radio frame includes power saving PS state information of each working link of the access point device; the PS state information includes listening cycle information and sleeping cycle information.

[0076] In a third aspect, an embodiment of the present disclosure further provides an access point device, which supports multi-link communication and includes at least one receiving module; wherein the access point device is configured to execute the optional implementation of the first aspect.

[0077] In a fourth aspect, an embodiment of the present disclosure further provides a site device, including: a determination module and a sending module; wherein the above-mentioned site device is used to execute the optional implementation method of the second aspect.

[0078] In a fifth aspect, an embodiment of the present disclosure further provides an access point device, wherein the access point device supports multi-link communication, including:

[0079] one or more processors;

[0080] The access point device is used to execute the optional implementation of the first aspect.

[0081] In a sixth aspect, an embodiment of the present disclosure further provides a site device, including:

[0082] one or more processors;

[0083] The site device is used to execute the optional implementation of the second aspect.

[0084] In a seventh aspect, an embodiment of the present disclosure further provides a communication system, comprising an access point device and a site device; wherein the access point device is configured to perform the optional implementation method described in the first aspect, and the site device is configured to perform the optional implementation method described in the second aspect.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] It is understandable that the aforementioned access point devices, station devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods 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 methods and will not be repeated here.

[0090] The embodiments of the present disclosure provide a communication method, an access point device, a station device, and a communication system. In some embodiments, the terms communication method, signal transmission method, wireless frame transmission method, etc. are interchangeable, and the terms information processing system, communication system, etc. are interchangeable.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0095] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0104] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0105] 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.

[0106] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0107] As shown in FIG1 , a communication system 100 includes a station device (STA) 101 and an access point device (AP) 102 .

[0108] In some embodiments, the site device 101 includes, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal that supports WiFi communication. Optionally, the wireless communication terminal 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 a smart grid, a wireless terminal device used in transportation safety, a wireless terminal device used in a smart city, and a wireless terminal device used in a smart home.

[0109] Specifically, the station device 101 may be a terminal device or network device with a Wireless Fidelity (WiFi) chip. Optionally, the station device 101 may support multiple WLAN standards, such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, and 802.11bn, as well as the next generation 802.11 protocol, but is not limited thereto.

[0110] In some embodiments, the access point device 102 can be an access point for a mobile terminal to enter a wired network. The AP is equivalent to a bridge connecting a wired network and a wireless network. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet. Specifically, the AP can be a terminal device or a network device with a wireless fidelity chip. Optionally, the AP can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a, 802.11bf, 802.11bn, and support the next generation 802.11 protocol, but is not limited to this.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the method includes:

[0116] Step 201: The access point device 102 determines a second radio frame; wherein the second radio frame includes power saving PS state information of each working link of the access point device; the PS state information includes listening cycle information and sleeping cycle information.

[0117] In UHR, power saving (PS) is a research priority, but AP power saving is still under development. Typically, APs come in three forms: soft APs (or soft AP MLD), non-simultaneous transmitting and receiving (NSTR) mobile APs (or NSTR mobileAP MLD), and regular APs (or regular AP MLD). Regular APs, such as routers, support both simultaneous transmitting and receiving (STR) and NSTR communications. For example, soft APs and NSTR mobile APs are typically battery-powered, resulting in high power consumption. Furthermore, their communication with STAs is typically not continuous for extended periods. Therefore, a mechanism to support AP power saving is required.

[0118] In UHR, APs may support multi-link communication, and STAs may also be attached to non-AP MLDs that also support multi-link communication. Based on the existing 802.11be architecture, multi-link communication is established between the two. Because the AP or AP MLD may enter power-saving mode on each link, and the AP wakes up for uplink and downlink transmissions at regular intervals on each link, UHR requires further improvements to its power-saving mechanisms to meet UHR transmission requirements.

[0119] In the disclosed embodiment, the access point device 102 determines a second radio frame; the second radio frame includes power-saving PS state information for each working link of the access point device; the power-saving PS state information identifies the power-saving state of the access point device, which can be a listening state or a sleep state. In the listening state, the device can listen to radio frames sent by other devices but does not transmit radio frames; in the sleep state, the device does not listen or transmit radio frames.

[0120] The PS state information includes listening cycle information and sleeping cycle information, that is, the listening cycle start time and the sleeping cycle start time of the access point device under each working link.

[0121] In step 202 , the access point device 102 sends a second radio frame.

[0122] The second radio frame may be a beacon frame or other action frame. The access point device carries the PS status information of each working link in the second radio frame, so that the site device can determine how to wake up the access point device according to the PS status information when uplink data needs to be transmitted.

[0123] In step 203, the site device 101 determines a first wireless frame; wherein the first wireless frame includes target request information, and the target request information identifies that the site device requests to wake up the access point device under the target link to receive the data frame sent by the site device; the target request information includes multi-link information, and the multi-link information identifies the target link.

[0124] The station device, or a STA attached to a Non-AP MLD, receives the PS status information of the access point device carried in the second radio frame and can wake up the access point device using the first radio frame. For example, if the station device has buffered data frames to transmit or has a burst or temporary low-latency service to transmit, it can send the first radio frame during the access point device's listening period to wake up the access point device using the first radio frame.

[0125] The first wireless frame includes target request information, which identifies that the site device requests to wake up the access point device under the target link to receive the data frame sent by the site device; the target request information includes multi-link information, which identifies the target link, and the target link includes one or more working links of the access point device.

[0126] It can be understood that the transmission identifier (Traffic Identifier, TID) of the data frame cached by the site device can be pre-mapped to the working link; the access point device supports multi-link communication, and the working link includes each link of the access point device (or the AP MLD to which the access point device is attached).

[0127] Optionally, the first radio frame may be a request to send (RTS) frame or a multi-user request to send (MU-RTS) frame.

[0128] The first wireless frame includes first identification information, which identifies each of the target links; for example, when there are 16 working links, the first identification information may occupy 2 bytes, and each bit is used to identify whether the corresponding working link is a target link; for example, a bit is set to 1, indicating that the AP under the corresponding link needs to wake up; set to 0, not wake up.

[0129] Step 204: The site device 101 sends a first radio frame to the access point device under the first link.

[0130] The first link is one of the working links of the access point device; under the first link, the site device sends a first radio frame to the access point device (or the AP MLD to which the access point device is attached) within the listening period of the access point device to request the access point device to wake up under the target link and receive the data frame to be sent by the site device.

[0131] Step 205, the access point device 102 receives the first wireless frame sent by the site device under the first link.

[0132] The first wireless frame includes target request information, which identifies that the site device requests to wake up the access point device under the target link to receive the data frame sent by the site device; the target request information includes multi-link information, which identifies the target link.

[0133] In some embodiments, after receiving the first radio frame sent by the station device, the method includes step 206 or step 208:

[0134] Step 206: Wake up in advance on the target link and receive a trigger frame sent by the site device.

[0135] Step 208: Wake up when the wake-up period of the target link arrives, and receive the trigger frame sent by the site device.

[0136] In step 206, the access point device may adopt an immediate response method, waking up in advance and receiving the trigger frame sent by the station device before the power saving state ends (for example, the sleep cycle or the listening cycle ends).

[0137] Alternatively, step 208 may be performed, in which a delayed response method is adopted to wake up when the wake-up period of the target link arrives, and receive a trigger frame sent by the site device.

[0138] In some embodiments, waking up in advance on the target link and receiving a trigger frame sent by the site device includes:

[0139] In the first link, the system replies with a confirmation frame to the site device, wakes up after performing time synchronization with the target link, and receives a trigger frame sent by the site device.

[0140] Among them, when the access point device adopts an immediate response method, it wakes up in advance when the power saving state has not ended (for example, the sleep period has not ended, or the listening period has not ended), and replies to the site device with a confirmation frame under the first link to notify the site device that the access point device wakes up in advance and is ready to receive the trigger frame sent by the site device.

[0141] In some embodiments, after waking up in advance on the target link and receiving a trigger frame sent by the site device, the method includes:

[0142] During the listening period of the working link of the access point device, if a probe request frame or a multi-connection probe request frame is received, the access point device wakes up under the working link and responds to the probe request frame or the multi-connection probe request frame.

[0143] To ensure compatibility, the access point device still receives probe request frames or multi-connection probe request frames normally during the listening period of each working link; and wakes up under the link where the probe request frame or multi-connection probe request frame is received, and responds to the probe request frame or multi-connection probe request frame.

[0144] In some embodiments, the duration of the listening period and / or the sleeping period of the access point device overlaps with the duration of the quiet element of the access point device.

[0145] Among them, during the duration of the quiet element of the access point device, no frame interaction occurs on the current channel, thereby ensuring that there will be no interference from other STAs in the BSS when performing channel measurement. In the embodiment of the present disclosure, the duration of the listening period and / or sleep period of the access point device is overlapped, partially overlapped, or completely overlapped with the duration of the quiet element of the access point device, so as to avoid unnecessary wake-up of other STAs during the listening period and / or sleep period. For example, when other STAs have no cached data to send during the listening period and / or sleep period, the access point device is woken up. In the case that the STA has cached data to send, the access point device can be woken up by the first wireless frame.

[0146] After step 206 or step 208, the method further includes:

[0147] Step 207: The station device 101 sends the buffered data frame to the access point device.

[0148] In an embodiment of the present disclosure, an access point device receives a first radio frame sent by a station device under a first link; wherein the first radio frame includes target request information, which indicates that the station device requests to wake up the access point device under a target link to receive data frames sent by the station device; after receiving the first radio frame, the access point device may wake up in advance under the target link or wake up when a wake-up period arrives, receive a trigger frame sent by the station device, and receive uplink data frames. This embodiment of the present disclosure provides a wake-up mechanism for an AP in a power-saving state.

[0149] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0150] 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.

[0151] In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.

[0152] 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.

[0153] 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.

[0154] 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.

[0155] The communication 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 204 can be implemented as an independent embodiment, step 205 can be implemented as an independent embodiment, and step 206 can be implemented as an independent embodiment; the combination of step 201 and step 202 can be implemented as an independent embodiment, and the combination of step 204 and step 205 can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0156] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0157] FIG3 is a flowchart of a communication method according to an embodiment of the present disclosure.

[0158] As shown in FIG3 , the above method may be applied to an access point device 102, and the above method includes:

[0159] Step 301: Receive a first radio frame sent by a station device under a first link; wherein the first radio frame includes target request information, where the target request information indicates that the station device requests to wake up the access point device under the target link to receive a data frame sent by the station device;

[0160] The target request information includes multi-link information, and the multi-link information identifies the target link.

[0161] Optionally, in the embodiment of the present disclosure, after receiving the first radio frame sent by the site device, the method includes:

[0162] Step 302: wake up in advance on the target link and receive a trigger frame sent by the site device;

[0163] or

[0164] Step 303: Wake up when the wake-up period of the target link arrives, and receive the trigger frame sent by the site device.

[0165] Optionally, in the embodiment of the present disclosure, waking up in advance on the target link and receiving a trigger frame sent by the site device includes:

[0166] Step 304: Under the first link, reply a confirmation frame to the site device, wake up after performing time synchronization with the target link, and receive a trigger frame sent by the site device.

[0167] Optionally, in an embodiment of the present disclosure, after waking up in advance on the target link and receiving a trigger frame sent by the site device, the method includes:

[0168] Step 305: within the listening period of the working link of the access point device, if a probe request frame or a multi-connection probe request frame is received, the access point device wakes up under the working link and responds to the probe request frame or the multi-connection probe request frame.

[0169] Optionally, in the embodiment of the present disclosure, the duration of the listening period and / or the sleeping period of the access point device overlaps with the duration of the quiet element of the access point device.

[0170] Optionally, in the embodiment of the present disclosure, the first radio frame includes an RTS frame or an MU-RTS frame;

[0171] The first radio frame includes first identification information, where the first identification information identifies each of the target links.

[0172] Optionally, in the embodiment of the present disclosure, before receiving the first radio frame sent by the site device under the first link, the method further includes:

[0173] Step 306: Determine a second radio frame; wherein the second radio frame includes power saving PS state information of each working link of the access point device; the PS state information includes listening cycle information and sleep cycle information;

[0174] Step 307: Send the second radio frame.

[0175] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 301 can be implemented as an independent embodiment, step 302 can be implemented as an independent embodiment, step 305 can be implemented as an independent embodiment, step 304 can be implemented as an independent embodiment, step 305 can be implemented as an independent embodiment, and step 306 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 301 and step 303 can be implemented as an independent embodiment, the combination of step 301 and step 304 can be implemented as an independent embodiment, the combination of step 301, step 303 and step 305 can be implemented as an independent embodiment, the combination of step 301, step 304 and step 305 can be implemented as an independent embodiment, and the combination of step 306 and step 307 can be implemented as an independent embodiment, but is not limited thereto.

[0176] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0177] FIG4 is a second flowchart of a communication method according to an embodiment of the present disclosure.

[0178] As shown in FIG4 , the above method may be applied to a site device, and the above method includes:

[0179] Step 401: Determine a first radio frame; wherein the first radio frame includes target request information, the target request information indicating that the site device requests to wake up the access point device under the target link to receive a data frame sent by the site device; the target request information includes multi-link information, the multi-link information identifying the target link;

[0180] Step 402: Send a first radio frame to the access point device under a first link.

[0181] Optionally, in the embodiment of the present disclosure, after sending the first radio frame to the access point device under the first link, the method includes:

[0182] Step 403: Send a trigger frame to the access point device under the target link.

[0183] Optionally, in the embodiment of the present disclosure, sending a trigger frame to the access point device under the target link includes:

[0184] Step 404: Receive an acknowledgment frame replied by the access point device in the first link, and send a trigger frame to the access point device in the target link.

[0185] Optionally, in the embodiment of the present disclosure, after sending a trigger frame to the access point device under the target link, the method includes:

[0186] Step 405: Send a probe request frame or a multi-connection probe request frame to the access point device within the listening period of the working link of the access point device, and receive a response message of the access point device to the probe request frame or the multi-connection probe request frame.

[0187] Optionally, in the embodiment of the present disclosure, the duration of the listening period and / or the sleeping period overlaps with the duration of the quiet element of the access point device.

[0188] Optionally, in the embodiment of the present disclosure, the first radio frame includes an RTS frame or an MU-RTS frame;

[0189] The first radio frame includes first identification information, where the first identification information identifies each of the target links.

[0190] Optionally, in the embodiment of the present disclosure, before determining the first radio frame, the method further includes:

[0191] Step 406: Receive a second radio frame; wherein the second radio frame includes power saving PS state information of each working link of the access point device; the PS state information includes listening cycle information and sleeping cycle information.

[0192] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 401 can be implemented as an independent embodiment, step 402 can be implemented as an independent embodiment, step 403 can be implemented as an independent embodiment, step 404 can be implemented as an independent embodiment, step 405 can be implemented as an independent embodiment, and step 406 can be implemented as an independent embodiment; the combination of step 401 and step 402 can be implemented as an independent embodiment, the combination of step 402 and step 403 can be implemented as an independent embodiment, the combination of step 401 and step 404 can be implemented as an independent embodiment, the combination of step 402 and step 404 can be implemented as an independent embodiment, the combination of step 402 and step 405 can be implemented as an independent embodiment, and the combination of step 401 and step 406 can be implemented as an independent embodiment, but is not limited thereto.

[0193] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 .

[0194] 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.

[0195] 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.

[0196] 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.

[0197] FIG5 is a schematic diagram of the structure of a site device according to an embodiment of the present disclosure. As shown in FIG5 , the site device 500 may include: a receiving module 501 .

[0198] In some embodiments, the receiving module 501 is configured to receive a first radio frame sent by a station device under a first link; wherein the first radio frame includes target request information, and the target request information indicates that the station device requests to wake up the access point device under the target link to receive the data frame sent by the station device;

[0199] The target request information includes multi-link information, and the multi-link information identifies the target link.

[0200] Optionally, the receiving module 501 is configured to execute at least one of the communication steps (eg, step 201 and step 301 , but not limited thereto) executed by the site device 101 in any of the above methods, which will not be described in detail here.

[0201] FIG6 is a schematic diagram of the structure of an access point device proposed in an embodiment of the present disclosure. As shown in FIG6 , the access point device 600 may include at least one of: a determination module 601 , a sending module 602 , and the like.

[0202] In some embodiments, the above-mentioned determination module 601 is used to determine a first wireless frame; wherein, the first wireless frame includes target request information, and the target request information identifies that the site device requests to wake up the access point device under the target link to receive the data frame sent by the site device; the target request information includes multi-link information, and the multi-link information identifies the target link; the sending module 602 is used to send the first wireless frame to the access point device under the first link.

[0203] Optionally, the determining module 601 is configured to execute at least one of the communication steps (eg, step 203 and step 401 , but not limited thereto) executed by the access point device 102 in any of the above methods, which will not be described in detail herein.

[0204] Figure 7 is a schematic diagram of the structure of a terminal 700 (e.g., user equipment) proposed in an embodiment of the present disclosure. Terminal 700 can be a chip, chip system, or processor that supports a network device implementing any of the above methods, or a chip, chip system, or processor that supports a terminal implementing any of the above methods. Terminal 700 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0205] As shown in Figure 7, terminal 700 includes one or more processors 701. Processor 701 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Terminal 700 is used to perform any of the above methods.

[0206] In some embodiments, the terminal 700 further includes one or more memories 702 for storing instructions. Optionally, all or part of the memories 702 may be located outside the terminal 700.

[0207] In some embodiments, the terminal 700 further includes one or more transceivers 704. When the terminal 700 includes one or more transceivers 704, the transceiver 704 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step 202, step 204, step 205, step 206, step 208, step 207, step 302, step 303, step 304, step 305, step 307, step 402, step 404, step 405, step 406, but not limited thereto), and the processor 701 performs at least one of the other steps (for example, step 201, step 203, step 301, step 306, step 401, but not limited thereto).

[0208] 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.

[0209] In some embodiments, terminal 700 may include one or more interface circuits 703. Optionally, interface circuit 703 is connected to memory 702. Interface circuit 703 may be configured to receive signals from memory 702 or other devices, and may be configured to send signals to memory 702 or other devices. For example, interface circuit 703 may read instructions stored in memory 702 and send the instructions to processor 701.

[0210] The terminal 700 described in the above embodiment may be a communication device such as a user device, but the scope of the terminal 700 described in the present disclosure is not limited thereto, and the structure of the terminal 700 may not be limited by FIG. 7 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: (1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0211] FIG8 is a schematic diagram of the structure of a chip 800 according to an embodiment of the present disclosure. If the terminal 700 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 800 shown in FIG8 , but the present disclosure is not limited thereto.

[0212] The chip 800 includes one or more processors 801 , and the chip 800 is configured to execute any of the above methods.

[0213] In some embodiments, chip 800 further includes one or more circuits 803. Optionally, interface circuit 803 is connected to memory 802. Interface circuit 803 can be used to receive signals from memory 802 or other devices, and can be used to send signals to memory 802 or other devices. For example, interface circuit 803 can read instructions stored in memory 802 and send the instructions to processor 801.

[0214] In some embodiments, the interface circuit 803 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step 202, step 204, step 205, step 206, step 208, step 207, step 302, step 303, step 304, step 305, step 307, step 402, step 404, step 405, step 406, but not limited to these), and the processor 801 executes at least one of the other steps (for example, step 201, step 203, step 301, step 306, step 401 but not limited to these).

[0215] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0216] In some embodiments, the chip 800 further includes one or more memories 802 for storing instructions. Alternatively, all or part of the memory 802 may be external to the chip 800.

[0217] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the terminal 700, the terminal 700 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0218] The present disclosure also provides a program product, which, when executed by the terminal 700, enables the terminal 700 to perform any of the above methods. Optionally, the program product is a computer program product.

[0219] 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 communication method, applied to an access point device, where the access point device supports multi-link communication, characterized in that, the method includes: Receiving, on a first link, a first wireless frame sent by a station device; wherein, the first wireless frame includes target request information, and the target request information identifies that the station device requests to wake up the access point device on a target link to receive a data frame sent by the station device; The target request information includes multi-link information, and the multi-link information identifies the target link.

2. The communication method according to claim 1, characterized in that, after receiving the first wireless frame sent by the station device, the method includes: Waking up in advance on the target link to receive a trigger frame sent by the station device; or Waking up when the wake-up period of the target link arrives to receive a trigger frame sent by the station device.

3. The communication method according to claim 2, characterized in that, the waking up in advance on the target link to receive a trigger frame sent by the station device includes: On the first link, sending an acknowledgment frame to the station device and waking up after time synchronization with the target link to receive a trigger frame sent by the station device.

4. The communication method according to claim 2 or 3, characterized in that, after waking up in advance on the target link to receive a trigger frame sent by the station device, the method includes: During the listening period of the working link of the access point device, if a probe request frame or a multi-connection probe request frame is received, then waking up on the working link and responding to the probe request frame or the multi-connection probe request frame.

5. The communication method according to claim 1, characterized in that, the duration of the listening period and / or the sleep period of the access point device overlaps with the duration of the quiet element of the access point device.

6. The communication method according to any one of claims 1 to 5, characterized in that, the first wireless frame includes a request to send (RTS) frame or a multi-user request to send (MU-RTS) frame; the first wireless frame includes first identification information, and the first identification information identifies each target link.

7. The communication method according to claim 1, characterized in that, before receiving the first wireless frame sent by the station device on the first link, the method further includes: Determining a second wireless frame; wherein, the second wireless frame includes power saving (PS) state information of each working link of the access point device; the PS state information includes listening period information and sleep period information; Sending the second wireless frame.

8. A communication method, applied to a station device, characterized in that, the method includes: Determining a first wireless frame; wherein, the first wireless frame includes target request information, and the target request information identifies that the station device requests to wake up the access point device on a target link to receive a data frame sent by the station device; the target request information includes multi-link information, and the multi-link information identifies the target link; Under a first link, a first wireless frame is sent to the access point device.

9. The communication method according to claim 8, wherein, after sending the first wireless frame to the access point device under the first link, the method includes: Under the target link, a trigger frame is sent to the access point device.

10. The communication method according to claim 9, wherein, sending the trigger frame to the access point device under the target link includes: Receiving an acknowledgment frame replied by the access point device under the first link, and sending a trigger frame to the access point device under the target link.

11. The communication method according to claim 9 or 10, wherein, after sending the trigger frame to the access point device under the target link, the method includes: During the listening period of the working link of the access point device, a probe request frame or a multi-connection probe request frame is sent to the access point device, and a response message of the access point device to the probe request frame or the multi-connection probe request frame is received.

12. The communication method according to claim 8, wherein, The duration of the listening period and / or the sleep period of the access point device overlaps with the duration of the quiet element of the access point device.

13. The communication method according to any one of claims 8 to 12, wherein, The first wireless frame includes an RTS frame or a MU-RTS frame; The first wireless frame includes first identification information, and the first identification information identifies each of the target links.

14. The communication method according to claim 8, wherein, before determining the first wireless frame, the method further includes: Receiving a second wireless frame; wherein, the second wireless frame includes power saving (PS) status information of each working link of the access point device; the PS status information includes listening period information and sleep period information.

15. An access point device, the access point device supports multi-link communication, wherein, the access point device includes: A receiving module, configured to receive a first wireless frame sent by a station device under a first link; wherein, the first wireless frame includes target request information, and the target request information identifies that the station device requests to wake up the access point device under a target link to receive a data frame sent by the station device; The target request information includes multi-link information, and the multi-link information identifies the target link.

16. A station device, wherein, the station device includes: A determining module, configured to determine a first wireless frame; wherein, the first wireless frame includes target request information, and the target request information identifies that the station device requests to wake up the access point device under a target link to receive a data frame sent by the station device; the target request information includes multi-link information, and the multi-link information identifies the target link; A sending module, configured to send the first wireless frame to the access point device under the first link.

17. An access point device, the access point device supports multi-link communication, wherein, Comprising: One or more processors; Wherein, the access point device is configured to execute the communication method according to any one of claims 1 to 7.

18. A station device, Characterized in that Comprising: One or more processors; Wherein, the station device is configured to execute the communication method according to any one of claims 8 to 14.

19. A communication system, Characterized in that Comprising an access point device and a station device; wherein, the access point device is configured to implement the communication method according to any one of claims 1 to 7, and the station device is configured to implement the communication method according to any one of claims 8 to 14.

20. A storage medium storing instructions, Characterized in that When the instructions are run on a communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 7, or execute the communication method according to any one of claims 8 to 14.

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