Communication method and communication device

Abstract

The present disclosure provides a communication method and a communication device. The communication method comprises: determining a first message frame, wherein the first message frame comprises target wake time (TWT) information, and the TWT information at least indicates time information of a station device sending periodic traffic or aperiodic traffic; and sending the first message frame. The technical solution provided by the example embodiments of the present disclosure can improve the utilization efficiency of the spectrum and meet the delay requirement of the RTA traffic.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of communications, and more particularly, to a communication method and a communication device in a wireless communication system. BACKGROUND

[0002] The current Wi-Fi technology is researched in the range of: 320MHz bandwidth transmission, multiple frequency band aggregation and coordination, etc., and it is expected to improve the rate and throughput by at least four times compared with the existing standard, and the main application scenarios are video transmission, AR(Augmented Reality), VR(Virtual Reality), etc.

[0003] The multiple frequency band aggregation and coordination refers to the communication between devices in the frequency bands of 2.4GHz, 5GHz and 6GHz at the same time, and a new MAC(Media Access Control) mechanism needs to be defined to manage the communication between devices in multiple frequency bands at the same time. In addition, it is also expected that the multiple frequency band aggregation and coordination can support low latency transmission.

[0004] The current multiple frequency band aggregation and system technology will support a maximum bandwidth of 320MHz(160MHz+160MHz), and in addition, it may also support 240MHz(160MHz+80MHz) and other bandwidths.

[0005] In addition, the current wireless communication technology proposes the demand of supporting low latency services, however, the EDCA(Enhanced Distributed Channel Access) parameters in the existing standard cannot meet the demand of low latency services. For example, in the current wireless communication technology, a multi-AP coordination function is added, that is, the resources between APs are coordinated, such as SR(Spatial Reuse), RTA(real time application) resource utilization, etc., but the existing standard does not have a multi-AP coordination mechanism. In addition, if the latency demand of RTA service is to be guaranteed, when the RTA service is transmitted, it needs to avoid interference as much as possible, but the mechanism in the existing standard cannot meet such demand. SUMMARY

[0006] Aspects of the present disclosure will address at least the above-mentioned problems and / or disadvantages. It will be appreciated by persons skilled in the art that the present disclosure is not limited by what has been particularly shown and described hereinabove.

[0007] According to an example embodiment of the present disclosure, a communication method is provided, comprising: determining a first message frame, wherein the first message frame comprises target wake time (TWT) information, and the TWT information at least indicates time information of a station device sending periodic services or non-periodic services; and transmitting the first message frame.

[0008] According to an example embodiment of the present disclosure, a communication method is provided, comprising: receiving a first message frame, wherein the first message frame comprises target wake time (TWT) information, and the TWT information at least indicates time information of a station device sending periodic traffic or aperiodic traffic; performing a communication operation based on the first message frame.

[0009] According to an example embodiment of the present disclosure, a communication device is provided. The communication device can comprise: a processing module configured to determine a first message frame, wherein the first message frame comprises target wake time (TWT) information, and the TWT information at least indicates time information of a station device sending periodic traffic or aperiodic traffic; and a communication module configured to send the first message frame.

[0010] According to an example embodiment of the present disclosure, a communication device is provided, comprising: a communication module configured to receive a first message frame, wherein the first message frame comprises target wake time (TWT) information, and the TWT information at least indicates time information of a station device sending periodic traffic or aperiodic traffic; and a processing module configured to control the communication module to perform a communication operation based on the first message frame.

[0011] According to an example embodiment of the present disclosure, an electronic device is provided. The electronic device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor implements the method as described above when executing the computer program.

[0012] According to an example embodiment of the present disclosure, a computer readable storage medium is provided. The computer readable storage medium stores a computer program. The computer program is executed by a processor to implement the method as described above.

[0013] The technical solution provided by the example embodiments of the present disclosure can improve the utilization efficiency of spectrum and meet the delay requirement of RTA traffic. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and other features of the embodiments of the present disclosure will become more apparent from the following detailed description of the embodiments of the present disclosure, taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 is a flowchart illustrating a communication method according to an embodiment.

[0016] Figure 2 is a flowchart illustrating a communication between an access point device and a station device according to an embodiment.

[0017] Figure 3 is a flowchart illustrating another communication method according to an embodiment.

[0018] Figure 4 FIG. 4 is a flowchart illustrating another communication method according to an embodiment.

[0019] Figure 5 FIG. 5 is a block diagram illustrating a communication device according to an embodiment. DETAILED DESCRIPTION

[0020] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure, as defined by the appended claims and their equivalents. Various embodiments of the present disclosure include various specific details, but these are to be taken as illustrative only. In addition, descriptions of well-known technology, functions, and constructions can be omitted for clarity and conciseness.

[0021] The terms and words used in the present disclosure and the terms used should not be limited to the meanings that are described below, but, if there is no opposite meaning in context, should be interpreted based on the ordinary meanings of the terms and words.

[0022] It will be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprise" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0023] It will be understood that, although the terms "first," "second," etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element discussed below could be termed a second element without departing from the teachings of the example embodiments.

[0024] It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. In addition, the use of "connected" or "coupled" herein also includes wireless connection or wireless coupling. As used herein, the term "and / or" or the expression "at least one of A or B" includes any and all combinations of one or more of the associated listed items.

[0025] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0026] In a wireless communication system, a basic service set (BSS) can include an access point (AP) device and one or more non-AP devices in communication with the AP device. A basic service set can be connected to a distribution system (DS) through its AP device, and then access another basic service set to form an extended service set (ESS).

[0027] An AP device is a wireless switch for a wireless network and is the core of the wireless network. The AP device can be used as a wireless base station and is mainly used as a bridge for connecting a wireless network and a wired network. With such an AP device, wired and wireless networks can be integrated.

[0028] As an example, an AP device can include software applications and / or circuitry to enable other types of nodes in a wireless network to communicate with the wireless network both externally and internally through the AP. For example, an AP device can be a terminal device or a network device equipped with a Wi-Fi (Wireless Fidelity) chip.

[0029] As an example, a non-AP device can include, but is not limited to, a cellular phone, a smart phone, a wearable device, a computer, a personal digital assistant (PDA), a personal communication system (PCS) device, a personal information manager (PIM), a personal navigation device (PND), a global positioning system, a multimedia device, an Internet of Things (IoT) device, and the like. Hereinafter, for the convenience of description, the term "non-AP device" can be used interchangeably with the term "station (STA)" or "non-AP STA device".

[0030] In a wireless communication system, there are usually multiple APs, and thus a multi-AP coordination function is needed to coordinate resources (e.g., SR, RTA resources, etc.) between APs to meet the needs of low-latency traffic. To this end, example embodiments of the present disclosure provide a communication method and a communication device that can meet such needs.

[0031] Figure 1 is a flowchart illustrating a communication method according to an embodiment. Figure 1 The illustrated communication method can be applied to an access point device as a transmitter.

[0032] Referring to Figure 1In step 110, a first message frame can be determined, where the first message frame can include target wake-up time (TWT) information. For example, the first message frame can be a beacon frame, an action frame, etc., however, this is merely exemplary, and other types of frames for information transmission are also feasible. In embodiments of the present disclosure, there can be many ways to determine the first message frame, for example: the access point device can generate the first message frame according to at least one of the following conditions: network conditions, load conditions, hardware capabilities of the sending / receiving device, traffic type, relevant protocol provisions; the embodiments of the present disclosure do not make specific limitations thereon. In embodiments of the present disclosure, the access point device can also obtain the first message frame from an external device, and the embodiments of the present disclosure do not make specific limitations thereon.

[0033] In step 120, the first message frame can be sent. The first message frame (including TWT information) can be received by the corresponding station device, or by other access point devices located in a BSS different from the BSS of the sending access point device, which will be described later with reference to Figure 3 and Figure 4 The two cases will be described respectively.

[0034] According to embodiments, the TWT information can indicate at least time information of the station device sending periodic traffic or aperiodic traffic. That is, the access point device as the sender can negotiate time information of the periodic traffic or the aperiodic traffic with the corresponding station device. According to embodiments of the present disclosure, the periodic traffic or the aperiodic traffic can be real-time application (RTA) traffic.

[0035] In the case of sending periodic traffic, the TWT information can include at least one of the following: periodicity of the periodic traffic, duration of each period, validity period (or referred to as “freshness”) of the periodic traffic. According to embodiments, the periodicity of the periodic traffic can represent a time interval between sending adjacent periodic traffic; the duration of each period can represent a time required to transmit a single periodic traffic; the validity period of the periodic traffic can represent a valid duration for performing a periodic traffic operation, for example, the valid duration can be in units of minutes, hours, days, months, or years. In addition, in the first message frame, the TWT information can also include other contents, for example, a function control for indicating TWT and / or parameter settings such as negotiated TWT time.

[0036] For periodic traffic, the station device can negotiate the periodicity, duration, and freshness of the periodic traffic with the access point device, and when the station device needs to transmit RTA traffic, the station device can use the allocated resources for transmission.

[0037] In one embodiment, the access point device can carry the resources allocated for the station device in the first message frame, such as resource unit (RU), TWT parameter, spatial reuse (SR), etc.

[0038] In another embodiment, the access point device can allocate resources for the station device through another frame (such as a trigger frame, etc.) for RTA traffic transmission. For example, as shown in step 230, a second message frame (such as a trigger frame, etc.) can be sent, wherein the second message frame includes resource information allocated for the station device that needs to send periodic traffic or aperiodic traffic. Figure 2

[0039] In addition, in step 230, in the case where the station device that needs to send aperiodic traffic accesses the channel through contention, the station device is allocated parameter values suitable for implementing UORA (uplink OFDMA random access) operation through the second message frame. The parameter values can include minimum (OCWmin) and maximum (OCWmax) values of the OFDMA contention window (OCW), etc. Figure 2

[0040] For aperiodic traffic, the AP sends a trigger frame at the TWT time point negotiated in the broadcast TWT information, and the trigger frame can include resources allocated for aperiodic RTA traffic, wherein when the station that needs to transmit aperiodic RTA traffic accesses the channel through contention, such as by reusing the UORA technology to access the channel, the parameters OCWmin and OCWmax can be set smaller (such as smaller than the UORA in the prior art), so that the station device can more easily obtain transmission resources. Therefore, the low latency requirement can be achieved to meet the latency requirement of RTA traffic.

[0041] In addition, the TWT information can include spatial reuse (SR) information. For example, in response to information such as the existence of multiple antennas in the station device and the support of directional transmission and the judgment of the power value of the OBSS (overlapping basis service set) data packet, the access point device can include the SR information in the TWT information to be applicable to the transmission of periodic traffic and aperiodic traffic.

[0042] ​​According to an embodiment of the present disclosure, the station device and the access point device can be devices supporting multi-connection communication, which can be referred to as multi-link devices (MLD) in short, i.e., there can be multiple connections between the station device and the access point device. The multiple connections can be at different frequencies, e.g., connections at 2.4 GHz, 5 GHz, 6 GHz, etc., or can be several connections of the same or different bandwidths at a specific frequency (e.g., 2.4 GHz). In addition, there can be multiple channels under each connection. In this case, the TWT information can include time information of the transmission of periodic traffic or aperiodic traffic under each of the multiple connections. Alternatively, the TWT information can further include a connection identifier corresponding to each of the multiple connections. Through such TWT information, the access point device and the station device can negotiate the transmission time of periodic traffic or aperiodic traffic under each connection.

[0043] In Figure 2 Step 210, the access point device can send a first message frame to the station, which can be similar to step 110 of Figure 1 Step 230 described in the above embodiment can be a sub-operation in the communication method of Figure 1 Step 250 of Figure 2 The access point device can receive periodic / aperiodic RTA traffic from the station device according to the negotiated transmission time.

[0044] In the above embodiments, it is described that the TWT information sent by the access point device as the sender is received by the station device, so as to negotiate the transmission time of periodic traffic or aperiodic traffic with the station device. The following describes an embodiment in which other access point devices can receive the first message frame sent by the access point device as the sender.

[0045] According to an embodiment of the present disclosure, the TWT information can be included in a reduced neighbor report (RNR) information element. The RNR information element can be carried in the first message frame.

[0046] In the case where there are multiple access point devices, other access point devices can receive the first message frame sent by the access point device as the sender, so that the other access point devices can obtain the time point of RTA traffic transmission, spatial reuse, etc. set by the access point device as the sender according to the TWT information in the RNR information element carried in the first message frame, and plan the time point of RTA traffic transmission, spatial reuse, etc. in the BSS according to the information. That is, multiple APs can directly coordinate the communication time of RTA traffic, including spatial reuse, time period information, etc.

[0047] According to embodiments of the present disclosure, although not shown, but Figure 1 The illustrated communication method can further include broadcasting, by the first access point device, the first message frame, wherein the first message frame is received by a second access point device different from the first access point device. The first access point device can be the access point device as the sender as described above, and the second access point device can be an access point device located in another BSS.

[0048] According to embodiments of the present disclosure, in the case where the first access point device and the second access point device support a simultaneous transmit and receive (STR) function, the transmission time of the periodic traffic or the aperiodic traffic overlaps under different connections supported by the first access point device and the second access point device; the transmission time of the periodic traffic or the aperiodic traffic does not overlap under the same connection supported by the first access point device and the second access point device.

[0049] For example, the first access point device is represented by AP1, and the second access point device is represented by AP2, which belong to different multi-connection devices respectively; the first access point device AP1 communicates with the station device STA1, and the second access point device AP2 communicates with the station device STA2. If the first access point device AP1 and the second access point device AP2 have the STR function, the RTA traffic time under different connections can overlap, but the RTA traffic time under the same connection does not overlap. According to embodiments of the present disclosure, the same connection means that the access point devices work in the same working frequency band but belong to different MLDs respectively. In addition, if the RTA traffic time under different connections overlaps, it is necessary to consider whether the STA supports the STR function to ensure that the acknowledgement message frame (ACK) returned by the access point device to the station device is not disturbed.

[0050] Figure 3 is a flowchart illustrating another communication method according to an embodiment. Figure 3 The illustrated communication method can be applied to a station device.

[0051] Referring to Figure 3 In step 310, a first message frame can be received. The first message frame can be sent from an access point device as a sender. The first message frame can include target wake-up time (TWT) information, which can indicate at least time information of the station sending periodic traffic or aperiodic traffic. The periodic traffic or the aperiodic traffic can be periodic RTA traffic or aperiodic RTA traffic.

[0052] The following describes Figure 3 The illustrated communication method is applied to an embodiment of a station device, i.e., in step 310, the station device receives the first message frame.

[0053] For periodic traffic, the station device can negotiate its periodicity, duration, and time validity with the AP, and when the station device needs to transmit the periodic traffic, the station device can use the allocated resource for transmission. For example, the station device can receive a second message frame (e.g., a trigger frame), where the second message frame can include resource information allocated for the station device that needs to send the periodic traffic.

[0054] For non-periodic traffic, the AP sends a second message frame (e.g., a trigger frame) to the station device at the TWT time point after broadcasting the TWT information, and the trigger frame includes resource allocated for the non-periodic RTA traffic. If the station that needs to transmit the RTA traffic accesses the channel by contention, such as reusing UORA, the station device can obtain parameter values suitable for implementing UORA operation from the second message frame (e.g., the trigger frame), for example, obtaining OCWmin and OCWmax. According to an embodiment of the present disclosure, the obtained OCWmin and OCWmax are smaller than the UORA setting in the prior art, so that the station device can more easily obtain transmission resources.

[0055] According to an embodiment of the present disclosure, the TWT information can include spatial multiplexing information. If the station device supports directional transmission, SR information can be obtained from the TWT information for periodic traffic and non-periodic traffic.

[0056] According to an embodiment of the present disclosure, the station device can be a multi-connection device supporting multi-connection communication. In this case, the TWT information can include time information of transmitting periodic traffic or non-periodic traffic under each connection of the multiple connections and / or a connection identifier corresponding to each connection of the multiple connections.

[0057] In Figure 3 , the first message frame, the TWT information, and the second message frame can be similar to the description with reference to Figure 1 and Figure 2 , and repeated descriptions are omitted here for brevity.

[0058] In step 320, the station device can perform a communication operation based on the first message frame. For example, the station device transmits the RTA traffic under one or more connections according to the negotiated time of the periodic / non-periodic RTA traffic.

[0059] Figure 4 is a flowchart illustrating another communication method according to an embodiment. Figure 4 The illustrated communication method can be applied to an access point device (e.g., a second access point device) as a receiving party.

[0060] In step 410, the second access point device can receive a first message frame broadcasted by a first access point device different from the second access point device. According to an embodiment, the first message frame can include TWT information, which can indicate at least time information of transmitting periodic traffic or aperiodic traffic of a station device in communication with the first access point device.

[0061] In step 420, the second access point device can set a transmission time of periodic traffic or aperiodic traffic of a station device in communication with the second access point device based on the TWT information in the first message frame. According to an embodiment of the present disclosure, the TWT information can be included in a reduced neighbor report (RNR) information element, so that the second access point device can obtain the TWT information from the RNR information element.

[0062] According to an embodiment of the present disclosure, in a case where the first access point device and the second access point device support a simultaneous transmit and receive (STR) function, the transmission time of the periodic traffic or the aperiodic traffic overlaps in different connections supported by the first access point device and the second access point device; the transmission time of the periodic traffic or the aperiodic traffic does not overlap in the same connection supported by the first access point device and the second access point device.

[0063] In step 430, the second access point device can perform a communication operation with a corresponding station device, for example, periodic traffic or aperiodic traffic can be transmitted according to the set RTA traffic transmission time.

[0064] In an embodiment of the present disclosure, the TWT information can be nested in the RNR information element and the RNR information element can be included in, for example, a beacon frame (i.e., the first message frame). In a case where the other AP (i.e., the second access point device) receives the beacon frame broadcasted by the AP (i.e., the first access point device), the other AP (i.e., the second access point device) can plan a time point of RTA traffic transmission of a station device in the BSS, spatial multiplexing, etc. according to the information in the RNR information element.

[0065] For example, STA1 and AP1, STA2 and AP2 belong to different MLDs, if AP1, AP2 have STR function, the RTA traffic time under each connection can overlap, but the RTA traffic time under the same connection does not overlap. If the RTA traffic time under different connections overlaps, it is necessary to consider whether the station device supports the STR function to ensure that the acknowledgement message frame (ACK) returned by the access point device to the station device is not disturbed.

[0066] The communication method according to the embodiments of the present disclosure can enable the access point device to directly coordinate the communication time of the RTA service, including the SR, time period information, etc., improve the utilization efficiency of the spectrum, and meet the latency requirement of the RTA service.

[0067] It should be understood that although Figures 1 to 4 The steps in the flowcharts of the embodiments of the present disclosure are displayed in sequence according to the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and they can be executed in other orders. In addition, at least some of the steps in the flowcharts of the drawings can include multiple sub-steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order is not necessarily sequential, but can be alternately or alternately executed with at least part of other steps or other steps. Sub-steps or stages. In addition, the steps in different flowcharts can also be combined.

[0068] Figure 5 is a block diagram illustrating a communication device 500 according to an embodiment. The communication device 500 can include a processing module 510 and a communication module 520.

[0069] Figure 5 The communication device 500 described above can be applied to an access point device as a sender. The processing module 510 can be configured to determine a first message frame, wherein the first message frame can include target wake time (TWT) information, and the TWT information can at least indicate time information of the station device to send periodic traffic or aperiodic traffic. The communication module 520 can be configured to send the first message frame. In this case, the processing module 510 and the communication module 520 of the communication device 500 can perform the communication method described with reference to Figure 1 for brevity, the repeated description is omitted.

[0070] Figure 5 The communication device 500 described above can be applied to a station device. The communication module 520 can be configured to receive a first message frame, wherein the first message frame includes target wake time (TWT) information, and the TWT information at least indicates time information of the station device to send periodic traffic or aperiodic traffic. The processing module 510 can be configured to control the communication module 520 to perform a communication operation based on the first message frame. In this case, the processing module 510 and the communication module 520 of the communication device 500 can perform the communication method described with reference to Figure 3 for brevity, the repeated description is omitted.

[0071] Figure 5The communication device 500 can be applied to an access point device (such as the second access point device described above) as a receiving party. The communication module 520 can be configured to receive a first message frame broadcast by a first access point device different from the second access point device, wherein the first message frame includes target wake time (TWT) information, and the TWT information at least indicates time information of the station device communicating with the first access point device to send periodic traffic or aperiodic traffic. The processing module 510 can be configured to set the transmission time of the periodic traffic or the aperiodic traffic of the station device communicating with the second access point device based on the TWT information in the first message frame, and control the communication module 520 to perform a communication operation. In this case, the processing module 510 and the communication module 520 of the communication device 500 can perform the communication method described with reference to Figure 4 The communication method described is described, and repeated descriptions are omitted for brevity.

[0072] In addition, Figure 5 The communication device 500 shown is only exemplary, and embodiments of the present disclosure are not limited thereto. For example, the communication device 500 can also include other modules, such as a memory module, etc. In addition, the various modules in the communication device 500 can be combined into more complex modules, or can be divided into more individual modules.

[0073] The communication device according to the embodiments of the present disclosure can improve the utilization efficiency of the spectrum and meet the delay requirement of the RTA traffic.

[0074] Based on the same principles as the method provided by the embodiments of the present disclosure, the embodiments of the present disclosure also provide an electronic device, which includes a processor and a memory; wherein the memory stores machine readable instructions (also referred to as "computer programs"); the processor is configured to execute the machine readable instructions to implement the method described with reference to Figures 1 to 4 .

[0075] The embodiments of the present disclosure also provide a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the method described with reference to Figures 1 to 4 .

[0076] In example embodiments, a processor can be, for example, a CPU (Central Processing Unit), a general purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a FPGA (Field Programmable Gate Array), or other programmable logic device, transistor logic, hardware component, or any combination thereof, which is configured to implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processor can also be a combination of components, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0077] In example embodiments, a memory can be, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical storage, a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store program codes in the form of instructions or data structures and that can be accessed by a computer, but not limited thereto.

[0078] While the present disclosure has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the scope of the present disclosure. Accordingly, the scope of the present disclosure should not be limited to the embodiments but should be defined by the appended claims and their equivalents.

Claims

1. A communication method applied to an access point multi-link device (AP MLD), comprising: sending, to a non-AP MLD, a first message frame, wherein the first message frame comprises target wake time (TWT) information, and the TWT information is used to indicate time information of the non-AP MLD for sending low latency traffic, and the low latency traffic comprises periodic traffic or aperiodic traffic; sending, to the non-AP MLD, a second message frame, wherein the second message frame comprises resource information allocated to the non-AP MLD for low latency traffic transmission, and the second message frame comprises a trigger frame, and the resource information comprises resource unit (RU) allocation information and / or spatial reuse information; wherein the AP MLD and the non-AP MLD comprise a plurality of links, and each of the plurality of links corresponds to a link identifier and corresponding TWT information.

2. The communication method according to claim 1, wherein, In a case of sending periodic traffic, the TWT information comprises at least one of the following: periodicity of periodic traffic, time length of each period, and validity period of periodic traffic.

3. The communication method according to claim 1 or 2, wherein, The first message frame comprises a beacon frame.

4. The communication method according to claim 1, wherein The communication method further comprises: in a case that the non-AP MLD needs to send aperiodic traffic by contending for an access channel, allocating, by the second message frame, a parameter value suitable for implementing UORA operation to the non-AP MLD.

5. The communication method according to claim 4, wherein, The parameter value comprises minimum and maximum values of an OFDMA contention window (OCW).

6. The communication method according to claim 1, wherein The TWT information is included in a reduced neighbor report (RNR) information element.

7. The communication method according to claim 1, wherein The communication method further comprises: broadcasting, by a first AP MLD, the first message frame, wherein the first message frame is received by a second AP MLD different from the first AP MLD.

8. The communication method of claim 7, wherein, in a case that the first AP MLD and the second AP MLD support a simultaneous transmit and receive (STR) function, transmission time of periodic traffic or aperiodic traffic overlaps on different connections supported by the first AP MLD and the second AP MLD.

9. The communication method according to claim 8, wherein, In a case that the first AP MLD and the second AP MLD support a simultaneous transmit and receive (STR) function, transmission time of periodic traffic or aperiodic traffic does not overlap on the same connection supported by the first AP MLD and the second AP MLD.

10. The communication method according to any one of claims 1 to 9, wherein The low latency traffic is real-time application (RTA) traffic.

11. A communication method applied to a non-AP MLD, comprising: receiving, from an AP MLD, a first message frame, wherein the first message frame comprises TWT information, and the TWT information is used to indicate time information of the non-AP MLD for sending low latency traffic, and the low latency traffic comprises periodic traffic or aperiodic traffic; receive a second message frame sent by the AP MLD, wherein the second message frame includes resource information allocated for the non-AP MLD for transmission of the low latency traffic, the second message frame includes a trigger frame, and the resource information includes resource unit (RU) allocation information and / or spatial reuse information; wherein a plurality of links are included between the AP MLD and the non-AP MLD, each of the plurality of links corresponds to a link identifier and corresponding TWT information.

12. The communication method according to claim 11, wherein, In a case where periodic traffic is transmitted, the TWT information includes at least one of a periodicity of the periodic traffic, a duration of each period, and a validity period of the periodic traffic.

13. The communication method according to claim 11 or 12, wherein, The first message frame includes a beacon frame.

14. The communication method according to claim 11, wherein, The communication method further includes: In a case where the non-AP MLD needs to transmit aperiodic traffic by contending for an access channel, obtaining, from the second message frame, a parameter value allocated for implementing UORA operation.

15. The communication method according to claim 14, wherein, The parameter value includes a minimum value and a maximum value of an OFDMA contention window (OCW).

16. The communication method according to claim 11, wherein The TWT information is included in a reduced neighbor report (RNR) information element.

17. The communication method according to any one of claims 11 to 16, wherein The low latency traffic is real-time application (RTA) traffic.

18. An access point multi-link device (AP MLD), comprising: a communication module configured to send, to a non-access point multi-link device (non-AP MLD), a first message frame including target wake time (TWT) information, the TWT information being used to indicate time information for the non-AP MLD to transmit low latency traffic, the low latency traffic including periodic traffic or aperiodic traffic; the communication module is further configured to send, to the non-AP MLD, a second message frame including resource information allocated for the non-AP MLD for transmission of the low latency traffic, the second message frame including a trigger frame, and the resource information including resource unit (RU) allocation information and / or spatial reuse information; wherein a plurality of links are included between the AP MLD and the non-AP MLD, each of the plurality of links corresponds to a link identifier and corresponding TWT information.

19. The AP MLD of claim 18, wherein, In a case where periodic traffic is transmitted, the TWT information includes at least one of a periodicity of the periodic traffic, a duration of each period, and a validity period of the periodic traffic.

20. The AP MLD of claim 18 or 19, wherein, The first message frame includes a beacon frame.

21. A non-access point multi-link device (non-AP MLD), comprising: a communication module configured to receive a first message frame sent by an access point multi-link device (AP MLD), wherein the first message frame includes target wake time (TWT) information, the TWT information being used to indicate time information for the non-AP MLD to transmit low latency traffic, the low latency traffic including periodic traffic or aperiodic traffic; The communication module is further configured to receive a second message frame sent by the AP MLD, wherein the second message frame includes resource information allocated for a non-AP MLD for low-latency service transmission, the second message frame includes a trigger frame, and the resource information includes resource unit (RU) allocation information and / or spatial reuse information. The AP MLD and the non-AP MLD include a plurality of links therebetween, and each of the plurality of links corresponds to a link identifier and corresponding TWT information.

22. The non-AP MLD of claim 21, wherein, In a case of transmitting periodic service, the TWT information includes at least one of a periodicity of the periodic service, a time length of each period, and a validity period of the periodic service.

23. The non-AP MLD according to claim 21 or 22, wherein, The first message frame includes a beacon frame.

24. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, The processor, when executing the computer program, implements the method in any one of claims 1 to 10 or any one of claims 11 to 17.

25. A computer readable storage medium, wherein, The computer readable storage medium has stored thereon a computer program, which, when executed by the processor, implements the method in any one of claims 1 to 10 or any one of claims 11 to 17.

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