CN117222012A

CN117222012A - Method, device, equipment and storage medium for transmitting data by multi-link equipment

Info

Publication number: CN117222012A
Application number: CN202210596807.0A
Authority: CN
Inventors: 吴昊; 尹蕾
Original assignee: Yibin Jimi Photoelectric Co Ltd
Current assignee: Yibin Jimi Photoelectric Co Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2023-12-12

Abstract

The invention discloses a method, a device, equipment and a storage medium for transmitting data by multi-link equipment. The method comprises the following steps: the first multilink terminal sends a request message of a shared transmission period to the multilink access point, wherein the message comprises at least one of a service identifier, a link list capable of using the shared transmission period and an indication whether to request for point-to-point direct connection data transmission; receiving a multi-user transmission preparation notification message which is transmitted by the multi-link access point and contains a sharing period; and the first logic terminal of the first multilink terminal receives the service data corresponding to the service identifier sent by the multilink access point, and the second logic terminal sends the received service data to the second terminal in the sharing period. The invention can ensure that the first multilink terminal sends data to the second terminal through the direct link while receiving the multilink access point data, thereby ensuring the fluency of the screen throwing service.

Description

Method, device, equipment and storage medium for transmitting data by multi-link equipment

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, a device, and a storage medium for transmitting data by using a multi-link device.

Background

802.11be systems, also known as extremely high throughput (EHT, extremely High Throughput) systems, enhance functionality through a range of system characteristics and mechanisms to achieve extremely high throughput. As the use of Wireless Local Area Networks (WLANs) continues to grow, it is increasingly important to provide wireless data services in many environments, such as homes, businesses, and hotspots. In particular, video traffic will continue to be the dominant traffic type in many WLAN deployments. The throughput requirements of these applications are evolving due to the advent of 4k and 8k video (20 Gbps uncompressed rate). New high throughput, low latency applications such as virtual or augmented reality, gaming, remote offices, and cloud computing will proliferate (e.g., latency for real-time gaming is less than 5 milliseconds).

In view of the high throughput and stringent real-time delay requirements of these applications, users desire to support their applications over a WLAN with higher throughput, higher reliability, less delay and jitter, and higher power efficiency. Users desire improved integration with Time Sensitive Networks (TSNs) to support applications on heterogeneous ethernet and wireless LANs. The 802.11be network aims to ensure the competitiveness of WLAN by further improving the overall throughput and reducing the delay while ensuring backward compatibility and coexistence with legacy technology standards. 802.11 compatible devices operating in the 2.4GHz,5GHz and 6GHz frequency bands.

Disclosure of Invention

In the current wireless screen projection scheme, if a mobile phone needs to project a screen onto a projector, the mobile phone and the projector need to be within the coverage of the same AP (access point), and when the mobile phone projects an online movie onto the projector, firstly, online movie data is downloaded from a server onto the mobile phone through the AP, and then the mobile phone projects the screen onto the projector, wherein the transmission process related to the AP, the mobile phone and the projector is as follows: during downloading, the AP sends data to the mobile phone, and during screen projection, the mobile phone sends data to the AP, and then the AP sends data to the projector. Because the 802.11 system is a time division system, three times of data transmission cannot be synchronously performed, and resources are required to be mutually competing, so that the delay of the whole screen throwing process is large, the blocking phenomenon is serious, and the delay of downloading a film and the delay of throwing the screen are caused.

In the 802.11be system, a multilink device is introduced, including a multilink access point and a multilink terminal, between which a plurality of links can transmit simultaneously. In a multi-link scenario, typically a physical device may include multiple logical devices, each of which may independently transmit and receive data, and each of which independently operates on a link. In view of the foregoing, the present invention provides a method, apparatus, device and storage medium for transmitting data by a multi-link device, which reduces transmission delay.

In a first aspect, the present invention provides a method for transmitting data by a multi-link device, including:

a first multilink terminal sends a shared transmission period request message to a multilink access point, wherein the shared transmission period request message comprises a service identifier, at least one of a link list capable of using the shared transmission period and an indication of whether to request for point-to-point direct connection data transmission, the first multilink terminal is connected with the multilink access point on a first link and a second link, and a second logic terminal operating on the second link in the first multilink terminal establishes a direct connection link with the second terminal;

the method comprises the steps that a first multi-link terminal receives a multi-user sending preparation notification message sent by a multi-link access point, wherein the multi-user sending preparation notification message comprises a sharing period;

and a first logic terminal operating on a first link in the first multi-link terminal receives service data corresponding to the service identifier sent by the multi-link access point, and a logic terminal or a second logic terminal operating on a link indicated by a link list of the usable shared sending period sends the received service data indicated by the service identifier to the second terminal in the shared period.

In one possible implementation manner, the multi-user sending preparation notification message further includes a sharing mode, where the sharing mode includes the following two modes: an exclusive sharing mode indicating that the sharing period is exclusive to the first multi-link terminal, and a variable sharing mode indicating that the sharing period is occupiable by other terminals;

when the shared mode indication in the multi-user transmission preparation notification message is a variable shared mode, after the logic terminal or the second logic terminal operating on the link indicated by the link list of the usable shared transmission period finishes transmitting data, if the shared period is not finished yet, the first multi-link terminal transmits a first notification message to the multi-link access point, and indicates that the logic terminal or the second logic terminal operating on the link indicated by the link list of the usable shared transmission period finishes transmitting data.

In one possible implementation manner, the multi-user transmission preparation notification message further includes a sharing delay, and after the first multi-link terminal receives the multi-user transmission preparation notification message, the first multi-link terminal operates a logic terminal or a second logic terminal on the link indicated by the link list of the available sharing transmission period to wait for the duration indicated by the sharing delay, and starts to transmit data to the second terminal.

In one possible implementation manner, the receiving, by the first multilink terminal, the multi-user transmission preparation notification message sent by the multilink access point includes:

a logical terminal or a second logical terminal operating on the link indicated by the link list of the available shared transmission period in the first multilink terminal receives a multi-user transmission preparation notification message transmitted by the multilink access point.

In one possible implementation, the multi-user transmission preparation notification message is a trigger message, where the trigger message includes a trigger type configured to indicate that the multi-user transmission preparation notification is sent.

In one possible implementation manner, before the first multilink terminal receives the multi-user transmission preparation notification message sent by the multilink access point, the method further includes:

the first multilink terminal receives a shared transmission period response message sent by the multilink access point, wherein the shared transmission period response message indicates whether to approve the request.

In one possible implementation manner, the first multi-link terminal stores an indication of whether to use the transmission period sharing mode, and when the indication indicates to use the transmission period sharing mode, the first multi-link terminal transmits a shared transmission period request message to the multi-link access point.

In a second aspect, the present invention provides a method for transmitting data by a multi-link device, including:

the method comprises the steps that a multilink access point receives a shared transmission period request message sent by a first multilink terminal, wherein the shared transmission period request message comprises a service identifier, at least one of a link list capable of using the shared transmission period and an indication of whether to request for point-to-point direct connection data transmission, the multilink access point is connected with the first multilink terminal on a first link and a second link, and a direct connection link is established between a second logic terminal operating on the second link in the first multilink terminal and the second terminal;

the multi-link access point sends a multi-user sending preparation notification message to a first multi-link terminal, wherein the multi-user sending preparation notification message comprises a sharing period, and indicates a logic terminal or a second logic terminal operating on a link indicated by a link list of the usable sharing sending period in the first multi-link terminal to send the received service data indicated by the service identifier to the second terminal in the sharing period;

and the first logic access point operating on the first link in the multilink access point sends the service data indicated by the service identification to the first multilink terminal.

when the shared mode indication in the multi-user transmission preparation notification message is a variable shared mode, the multi-link access point does not transmit data after the shared period starts, and if a first notification message indicating that the data transmission of a logic terminal or a second logic terminal on a link indicated by a link list of the usable shared transmission period is completed is received in the shared period, the multi-link access point monitors whether the link indicated by the link list of the usable shared transmission period or the second link is idle after receiving the first notification message.

In one possible implementation manner, the multi-user transmission preparation notification message further includes a sharing delay, and indicates that after the first multi-link terminal receives the multi-user transmission preparation notification message, the logic terminal or the second logic terminal operating on the link indicated by the link list of the available sharing transmission period starts to transmit data to the second terminal after waiting for the duration indicated by the sharing delay.

In one possible implementation, the multi-link access point sending a multi-user transmission preparation notification message to the first multi-link terminal includes:

a logical access point of the multilink access point, which is peer to peer with a logical terminal or a second logical terminal of the first multilink terminal operating on the link indicated by the link list of the shared transmission period, transmits a multiuser transmission preparation notification message to the first multilink terminal.

In one possible implementation, a first logical access point of the multiple link access points sends a multi-user transmission preparation notification message to the first multiple link terminal simultaneously with a first logical access point of the multiple link access points sending the service data indicated by the service identification to the first multiple link terminal operating on the link indicated by the link list of the available shared transmission period or a second logical access point of the multiple link terminal.

In one possible implementation, before the multi-user transmission preparation notification message is sent to the first multi-link terminal by the multi-link access point, the method further includes:

The multi-link access point transmits a shared transmission period response message to the first multi-link terminal, the shared transmission period response message indicating whether to grant the request.

In one possible implementation, the multilink access point sets the sharing period according to a transmission time period required by the first logical access point to transmit the service data indicated by the service identifier.

In a third aspect, the present invention provides an apparatus for transmitting data by a multi-link device, including a shared transmission period module, where the shared transmission period module is configured to perform the following steps:

transmitting a shared transmission period request message to the multi-link access point through a first multi-link terminal, wherein the shared transmission period request message comprises a service identifier, at least one of a link list capable of using the shared transmission period and an indication whether to request for point-to-point direct connection data transmission, the first multi-link terminal is connected with the multi-link access point on a first link and a second link, and a second logic terminal operating on the second link in the first multi-link terminal establishes a direct connection link with the second terminal;

receiving a multi-user transmission preparation notification message sent by a multi-link access point through a first multi-link terminal, wherein the multi-user transmission preparation notification message comprises a sharing period;

And receiving service data corresponding to the service identifier sent by the multilink access point through a first logic terminal operating on a first link in the first multilink terminals, and sending the received service data indicated by the service identifier to a second terminal in the shared period through a logic terminal operating on a link indicated by a link list of the usable shared transmission period or a second logic terminal.

In a fourth aspect, the present invention provides an apparatus for transmitting data by a multi-link device, including a shared transmission period module, where the shared transmission period module is configured to perform the following steps:

receiving, by a multi-link access point, a shared transmission period request message sent by a first multi-link terminal, where the shared transmission period request message includes a service identifier, and at least one of a link list that can use the shared transmission period and an indication that whether to request for point-to-point direct-connection data transmission, where the multi-link access point is connected to the first multi-link terminal on a first link and a second link, and a second logical terminal operating on the second link in the first multi-link terminal establishes a direct-connection link with the second terminal;

transmitting a multi-user transmission preparation notification message to a first multi-link terminal through a multi-link access point, wherein the multi-user transmission preparation notification message comprises a sharing period, and a logic terminal or a second logic terminal which is operated on a link indicated by a link list of the usable sharing transmission period in the first multi-link terminal is indicated to transmit the received service data indicated by the service identifier to the second terminal in the sharing period;

And sending the service data indicated by the service identification to the first multilink terminal through a first logic access point operating on the first link in the multilink access points.

In a fifth aspect, the present invention provides an electronic device comprising a memory, a processor and a computer program stored on the memory, the processor executing the computer program to implement the method of the first or second aspect.

In a sixth aspect, the present invention provides a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the method of the first or second aspect.

In a seventh aspect, the present invention provides a computer program product comprising instructions which when executed by a processor implement the method of the first or second aspect.

It should be noted that, the apparatus according to the third aspect is configured to perform the method provided in the first aspect, the apparatus according to the fourth aspect is configured to perform the method provided in the second aspect, the electronic device according to the fifth aspect, the storage medium according to the sixth aspect, and the computer program product according to the seventh aspect are configured to perform the method provided in the first aspect or the second aspect, so that the same advantages as those of the method provided in the first aspect or the second aspect can be achieved, and the present invention will not be repeated.

According to the invention, the first multilink terminal can request the multilink access point to share the transmission time period between the multilinks, so that the first multilink terminal can transmit data to the second terminal through the direct link while receiving the data transmitted by the multilink access point, for example, the downloading and projection of the first multilink terminal can be synchronously performed, and the smoothness of the screen projection service is ensured.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present invention;

fig. 2 is a flowchart of a method for transmitting data by a multi-link device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

In order to better understand the technical solutions of the present invention, the following description will clearly and completely describe the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. While the present disclosure has been described in terms of an exemplary embodiment or embodiments, it should be understood that each aspect of the disclosure may be separately provided as a complete solution. The following embodiments and features of the embodiments may be combined with each other without conflict.

In embodiments of the present invention, "at least one" means one or more, and "a plurality" means two or more. In order to clearly describe the technical solution of the embodiment of the present invention, in the embodiment of the present invention, the words "first", "second", etc. are used to distinguish identical items or similar items having substantially the same function and effect, and those skilled in the art will understand that the words "first", "second", etc. do not limit the number and execution order, but only schematic and distinguish between the objects to be described, without separating the order, and without indicating that the number of devices in the embodiment of the present invention is particularly limited, and cannot constitute any limitation of the embodiment of the present invention.

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system includes a multi-link terminal STA MLD1, a multi-link terminal STA MLD2 and a multi-link access point AP MLD, where STA MLD1 includes two logical terminals STA1 and STA2, STA MLD2 includes two logical terminals STA3 and STA4, and multi-link access point AP MLD includes three logical access points AP1 and AP2, where the two logical access points AP1 and AP2 operate on two different links respectively, and the embodiment of the present invention assumes that AP1 operates on a 2.4GHz link, sets a link identifier as link1, and AP2 operates on a 5GHz link, and sets a link identifier as link2.

With continued reference to fig. 1, STA MLD1 establishes a connection with AP MLD, where STA1 connects with AP1 on link1 and STA2 connects with AP2 on link 2; the method comprises the steps that STA MLD2 establishes connection with AP MLD, wherein STA3 is connected with AP1 on a link1, and STA4 is connected with AP2 on a link 2; a direct link is established between STA2 of STA MLD1 and STA4 of STA MLD 2. The method for establishing connection between the terminal and the access point and for establishing a direct link between the terminal and the terminal can refer to the prior art, and the embodiment of the application is not described in detail.

It should be understood that fig. 1 is only a schematic diagram of an architecture of a communication system, and the number, types, etc. of devices in the communication system are not limited in the embodiments of the present application, for example, the multi-link terminal and the multi-link access point may include more than three logic devices, and the number of logic devices in the multi-link terminal and the multi-link access point may be different. Furthermore, those skilled in the art will appreciate that the term "Access Point (AP)" in accordance with the principles and functions described herein may also be used to describe an access port or any other device capable of receiving and transmitting wireless signals within a network architecture, and thus, the use of an access point is merely exemplary.

In a specific embodiment, the STA MLD1 may correspond to a mobile phone, the STA MLD2 may correspond to a projector, and the mobile phone clicks to determine that the mobile phone sends a screen-throwing instruction to the lower layer transmission module, that is, corresponds to the STA MLD1 in the embodiment of the present application. It should be understood that STA MLD2 may also be replaced by a single link terminal.

Fig. 2 is a flowchart of a method for transmitting data by a multi-link device according to an embodiment of the present invention. As shown in fig. 2, the method for transmitting data by the multi-link device includes the following:

201. the STA MLD1 transmits a shared transmission period request message (e.g., TXOP sharing between links request message) to the AP MLD, the message including at least one of a service identification, a link list that can use the shared transmission period, and an indication of whether to request for point-to-point direct connection data transmission. STA MLD1 may transmit the shared transmission period request message to the AP MLD either through STA1 or through STA 2.

For example, the shared transmission period request message includes parameters TID and Sharing Link, or includes parameters TID and P2P shared, or includes parameters TID, sharing Link and P2P shared, where the parameters TID are used to indicate service identifier; the parameter Sharing Link is used to indicate a Link list that can use the shared transmission period, and the present embodiment is set to Link2; the parameter P2P shared is used to indicate whether a request is made for a point-to-point direct data transfer, if set to 1, the request is made for a point-to-point direct data transfer, otherwise set to 0. It should be noted that if the STA MLD1 includes more than three logical terminals, it may establish direct links with the STA MLD2 through a plurality of logical terminals, where the parameter Sharing Link may indicate one or more links among the direct links, and if the shared transmission period request message includes the parameter P2P shared but does not include the parameter Sharing Link, instruct the STA MLD1 to use the shared transmission period on all the direct links.

In some embodiments, STA MLD1 checks a local parameter dot11txop shared bandwidth complete value, which is used to indicate whether to use a transmission period sharing mode if true, to indicate to use a transmission period sharing mode if false, to indicate not to use a transmission period sharing mode, and to send a shared transmission period request message to AP MLD. If the local parameter dot11txop shared blcompleted value is false, the STA MLD1 contends for a transmission opportunity according to the prior art, and then the AP MLD contends for a transmission opportunity to transmit data to the STA MLD2.

202. The AP MLD transmits a multi-user transmission preparation notification message including a sharing period to the STA MLD 1. Optionally, the multi-user transmission preparation notification message may further include a sharing mode and/or a sharing delay, where the sharing mode includes two modes: an exclusive sharing mode indicating that the sharing period is exclusive to the first multi-link terminal, and a variable sharing mode indicating that the sharing period is occupiable by other terminals.

Illustratively, the multiuser transmission preparation notification message includes the following parameters:

sharingduration: the sharing period may be set according to a transmission period required for the AP1 to transmit the service data indicated by TID to the STA1, for example, including the transmission period, or may be set according to a delay sensitivity of the service, for example, including a sharing period start time and a sharing period duration, or including a sharing period start time, a sharing period duration, and an interval period, where the interval period is a period between sharing period start times of two consecutive sharing transmission periods;

Sharing mode (optional): a sharing mode, such as set to 1, indicates use of a variable sharing mode, set to 2, indicates use of an exclusive sharing mode;

sharing delay (optional): the delay is shared.

The AP MLD may transmit the multi-user transmission preparation notification message to the STA MLD1 through the AP1 or transmit the multi-user transmission preparation notification message to the STA MLD1 through the AP 2. For example, the multiuser transmission preparation notification message is a trigger message, and the trigger message includes a parameter Type set to MU-RTS (multiuser transmission preparation notification). In a specific embodiment, when the AP MLD1 needs to send the service data indicated by the parameter TID in the request message in step 201 to the STA MLD1, the logical access point AP1 of the AP MLD1 sends the data to the logical terminal STA1 of the STA MLD 1; meanwhile, the logical access point AP2 of the AP MLD1 sends a trigger message to the logical terminal STA2 of the STA MLD1, which should be noted that if the STA MLD1 includes more than three logical terminals, it may establish a direct Link with the STA MLD2 through a plurality of logical terminals, if the request message includes a parameter Sharing Link in step 201, the logical access point peer to peer with the logical terminal operating on the Link indicated by the parameter Sharing Link in the AP MLD1 sends a trigger message to the STA MLD1, and if the request message includes the parameter P2P shared but does not include the parameter Sharing Link in step 201, the AP d1 sends a trigger message through the logical access point(s) peer to peer with the logical terminal operating on the direct Link in the STA MLD1.

Optionally, before step 202, the AP MLD may further send a shared transmission period response message (e.g. TXOP sharing between links response message) to the STA MLD1, where the message indicates whether to grant the request, and if the message includes a parameter status code, the value is SUCCESS, indicating that the request is granted; the value REFUSE indicates that the request was not granted. The present embodiment assumes that the status code value is set to SUCCESS, and if the status code value is REFUSE, then step 202 and the following steps are not performed. Further, the shared transmission period response message may further include parameters TID and Sharing Link, or parameters TID and P2P shared, or parameters TID, sharing Link, and P2P shared.

203. STA1 of STA MLD1 receives the traffic data indicated by the traffic identification in the shared transmission period request message transmitted by AP1 of AP MLD, and STA2 transmits the received traffic data to STA MLD2 in the shared period indicated in the multi-user transmission preparation notification message. It should be noted that if the STA MLD1 includes more than three logical terminals, it may establish a direct Link with the STA MLD2 through a plurality of logical terminals, and if the request message in step 201 includes a parameter Sharing Link, the logical terminal on the Link indicated by the parameter Sharing Link operated in the STA MLD1 transmits the received service data to the STA MLD2 in a shared period in the multi-user transmission preparation notification message; if the request message in step 201 includes the parameter P2P shared, but does not include the parameter Sharing Link, then all logical terminals operating on the direct Link in STA MLD1 send data to STA MLD2.

For example, after receiving the trigger message, the logic terminal STA2 of the STA MLD1 sends data to the STA4 of the STA MLD2 on the direct link in a period indicated by the parameter Duration in the trigger message if the trigger message type is MU-RTS. It is thereby achieved that when the AP MLD transmits data to the STA MLD1, the STA MLD1 can synchronously transmit data to the STA MLD2.

If the trigger message contains a parameter Sharing mode, checking the value of the Sharing mode, if the value of the Sharing mode is 1, after the data transmission of the STA2 is finished, if the Sharing period is not finished yet, the STA MLD1 (STA 1 or STA 2) sends a notification message to the AP MLD, indicating that the STA2 finishes transmitting the data, and the AP MLD can send the data to any terminal in the rest time; if the Sharing mode value is 2, after the data transmission is completed, the STA2 does not transmit a notification message to the AP MLD even if the Sharing period has not ended yet, and the AP MLD cannot transmit data for the remaining time.

If the trigger message contains a Sharing delay, the STA2 starts to transmit data to the logical terminal STA4 of the STA MLD2 after waiting for the Sharing delay.

The value of the Sharing delay represents the delay between the logic terminal STA1 of the STA MLD1 receiving the data, performing audio/video decoding, performing audio/video encoding, and then transmitting the data to the STA MLD2 by the logic terminal STA2 of the STA MLD1, including the data packet transmit-receive processing delay, the data Bao Yin video decoding processing delay, the data Bao Yin video encoding processing delay, and the like.

After the logic access point AP2 of the AP MLD sends the trigger message, if the trigger message includes a Sharing mode, if the value of the Sharing mode is 1, data is not sent after the Sharing period starts, if the notification message sent by the STA MLD1 is received in the Sharing period, the STA2 is instructed to send the data, if the link2 is idle after receiving the notification message, the data can be sent to any terminal if the link2 is idle; if the value of the Sharing mode is 2, the AP2 cannot transmit data for the Sharing period.

The embodiment of the invention also provides a device for transmitting data by the multi-link equipment, which comprises a shared transmission period module, wherein the shared transmission period module is used for executing the following steps:

Optionally, the multi-user sending preparation notification message further includes a sharing mode, where the sharing mode includes the following two modes: an exclusive sharing mode indicating that the sharing period is exclusive to the first multi-link terminal, and a variable sharing mode indicating that the sharing period is occupiable by other terminals;

when the shared mode indication in the multi-user transmission preparation notification message is a variable shared mode, after the logic terminal or the second logic terminal operating on the link indicated by the link list of the usable shared transmission period finishes transmitting data, if the shared period is not finished yet, transmitting a first notification message to the multi-link access point through the first multi-link terminal, and indicating that the logic terminal or the second logic terminal operating on the link indicated by the link list of the usable shared transmission period finishes transmitting data.

Optionally, the multi-user transmission preparation notification message further includes a sharing delay, and after receiving the multi-user transmission preparation notification message, the first multi-link terminal starts to transmit data to the second terminal after operating a logic terminal or the second logic terminal on a link indicated by the link list of the available sharing transmission period waits for a duration indicated by the sharing delay.

Optionally, the receiving, by the first multilink terminal, the multiuser transmission preparation notification message sent by the multilink access point includes:

and receiving a multi-user transmission preparation notification message transmitted by the multi-link access point by a logic terminal or a second logic terminal operating on the link indicated by the link list of the available shared transmission period in the first multi-link terminal.

Optionally, the multi-user transmission preparation notification message is a trigger message, and the trigger message includes a trigger type configured to indicate multi-user transmission preparation notification.

Optionally, before the receiving, by the first multilink terminal, the multiuser transmission preparation notification message sent by the multilink access point, the shared transmission period module is further configured to perform the following steps:

And receiving a shared transmission period response message sent by the multilink access point through the first multilink terminal, wherein the shared transmission period response message indicates whether to approve the request.

Optionally, an indication of whether to use the transmission period sharing mode is stored in the first multi-link terminal, and when the indication indicates to use the transmission period sharing mode, a shared transmission period request message is transmitted to the multi-link access point through the first multi-link terminal.

The embodiment of the invention also provides a device for transmitting data by using the multilink equipment, which comprises a shared transmission period module, wherein the shared transmission period module is used for executing the following steps:

and when the sharing mode indication in the multi-user sending preparation notification message is a variable sharing mode, the multi-link access point does not send data after the sharing period starts, and if a first notification message indicating that the data is sent by a logic terminal or a second logic terminal on a link indicated by a link list of the usable sharing sending period is received in the sharing period, the multi-link access point monitors whether the link indicated by the link list of the usable sharing sending period or the second link is idle after receiving the first notification message.

Optionally, the multi-user transmission preparation notification message further includes a sharing delay, and after the first multi-link terminal receives the multi-user transmission preparation notification message, the logic terminal or the second logic terminal operating on the link indicated by the link list of the available sharing transmission period starts to transmit data to the second terminal after waiting for the duration indicated by the sharing delay.

Optionally, the sending, by the multi-link access point, the multi-user transmission preparation notification message to the first multi-link terminal includes:

and sending a multi-user transmission preparation notification message to the first multi-link terminal through a logic terminal or a second logic terminal peer-to-peer logic access point in the multi-link access point and a logic access point in the first multi-link terminal, wherein the logic terminal or the second logic terminal operates on a link indicated by the link list of the available shared transmission period.

Optionally, the first logical access point in the multi-link access points sends the service data indicated by the service identifier to the first multi-link terminal for the first time, and simultaneously sends the multi-user sending preparation notification message to the first multi-link terminal through the logical access point which is operated on the link indicated by the link list of the available shared sending period or the second logical access point in the first multi-link terminal and is equivalent to the first logical access point.

Optionally, before the multi-user transmission preparation notification message is sent to the first multi-link terminal through the multi-link access point, the shared transmission period module is further configured to perform the following steps:

and transmitting a shared transmission period response message to the first multi-link terminal through the multi-link access point, wherein the shared transmission period response message indicates whether to approve the request.

Optionally, the shared transmission period module sets the shared period according to a transmission time length required by the first logical access point to transmit the service data indicated by the service identifier through the multilink access point.

It should be understood that the apparatus herein is embodied in the form of functional modules. The term module herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. The device has the function of realizing the corresponding steps in the method; the above functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above. In an embodiment of the invention, the device may also be a chip or a system of chips, for example: system on chip (SoC). The invention is not limited herein.

The embodiment of the invention also provides an electronic device, and fig. 3 is a schematic structural diagram of the electronic device provided by the embodiment of the invention. As shown in fig. 3, the device 300 comprises a processor 301, a memory 302 and a communication interface 303, wherein the processor 301, the memory 302 and the communication interface 303 are in communication with each other via a bus 304, and instructions executable by the processor 301 are stored in the memory 302, and are loaded and executed by the processor 301 to control the communication interface 303 to send signals and/or receive signals.

It should be understood that the apparatus 300 may be specifically configured as the STA MLD1 or the AP MLD in the above embodiments, or the functions of the STA MLD1 or the AP MLD in the above embodiments may be integrated in the apparatus 300, and the apparatus 300 may be configured to perform the respective steps and/or flows corresponding to the STA MLD1 or the AP MLD in the above embodiments. Alternatively, the memory 302 may include read-only memory and random access memory, and provide instructions and data to the processor 301. A portion of memory 302 may also include non-volatile random access memory. For example, the memory 302 may also store information of the device type. The processor 301 may be configured to execute instructions stored in the memory 301, and when the processor 301 executes the instructions, the processor 301 may perform corresponding steps and/or flows in the above-described method embodiments.

It should be appreciated that in embodiments of the present invention, the processor may be a central processing unit (centralprocessing unit, CPU), the processor may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present invention may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor executes instructions in the memory to perform the steps of the method described above in conjunction with its hardware. To avoid repetition, a detailed description is not provided herein.

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with embodiments of the present invention are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more sets of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present invention. The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules, that is, may be located in one place, or may be distributed over a plurality of network modules, where some or all of the modules may be selected according to actual needs to achieve the purposes of the embodiment of the present invention.

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus, device and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be other manners of dividing the modules or components into multiple modules or components when actually implemented, or multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical, mechanical, or other forms.

Those of ordinary skill in the art will appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for transmitting data by a multi-link device, comprising:

2. The method for transmitting data by a multi-link device according to claim 1, wherein the multi-user transmission preparation notification message further includes a sharing mode, and the sharing mode includes two modes: an exclusive sharing mode indicating that the sharing period is exclusive to the first multi-link terminal, and a variable sharing mode indicating that the sharing period is occupiable by other terminals;

3. The method according to claim 1, wherein the multi-user transmission preparation notification message further includes a sharing delay, and the first multi-link terminal starts to transmit data to the second terminal after receiving the multi-user transmission preparation notification message, after operating the logic terminal or the second logic terminal on the link indicated by the link list of the available shared transmission period and waiting for the duration indicated by the sharing delay.

4. The method for transmitting data by a multilink device according to claim 1, wherein the first multilink terminal receiving the multiuser transmission preparation notification message transmitted by the multilink access point comprises:

5. The method according to claim 1, wherein the multi-user transmission preparation notification message is a trigger message, and the trigger message includes a trigger type configured to indicate the multi-user transmission preparation notification.

6. The method for transmitting data by a multilink device according to claim 1, further comprising, before the first multilink terminal receives the multiuser transmission preparation notification message transmitted by the multilink access point:

7. The method according to claim 1, wherein the first multilink terminal stores an indication of whether the transmission period sharing mode is used, and when the indication indicates that the transmission period sharing mode is used, the first multilink terminal transmits a shared transmission period request message to the multilink access point.

8. A method for transmitting data by a multi-link device, comprising:

9. The method for transmitting data by a multi-link device according to claim 8, wherein the multi-user transmission preparation notification message further includes a sharing mode, and the sharing mode includes two modes: an exclusive sharing mode indicating that the sharing period is exclusive to the first multi-link terminal, and a variable sharing mode indicating that the sharing period is occupiable by other terminals;

10. The method according to claim 8, wherein the multi-user transmission preparation notification message further includes a shared delay, and the first multi-link terminal is instructed to start transmitting data to the second multi-link terminal after receiving the multi-user transmission preparation notification message, after the logic terminal or the second logic terminal operating on the link indicated by the link list of the available shared transmission period waits for the duration indicated by the shared delay.

11. The method of claim 8, wherein the multi-link access point transmitting the multi-user transmission preparation notification message to the first multi-link terminal comprises:

12. The method according to claim 11, wherein a first logical access point of the multi-link access points transmits a multi-user transmission preparation notification message to the first multi-link terminal simultaneously with a first time transmission of the service data indicated by the service identification to the first multi-link terminal, with a logical access point of the first multi-link terminal operating on the link indicated by the link list of the available shared transmission period or a second logical access point peer to peer.

13. The method of claim 8, wherein the multi-user send preparation notification message is a trigger message, and wherein the trigger message includes a trigger type configured to indicate the multi-user send preparation notification.

14. The method of transmitting data by a multi-link device of claim 8, further comprising, prior to the multi-link access point transmitting a multi-user transmission preparation notification message to the first multi-link terminal:

15. The method according to claim 8, wherein the multilink access point sets the sharing period according to a transmission time period required for the first logical access point to transmit the service data indicated by the service identification.

16. An apparatus for transmitting data by a multi-link device, comprising a shared transmission period module, wherein the shared transmission period module is configured to perform the steps of:

17. An apparatus for transmitting data by a multi-link device, comprising a shared transmission period module, wherein the shared transmission period module is configured to perform the steps of:

18. An electronic device comprising a memory, a processor and a computer program stored on the memory, characterized in that the processor executes the computer program to implement the method of any one of claims 1-15.

19. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method of any of claims 1-15.

20. A computer program product comprising instructions which, when executed by a processor, implement the method of any one of claims 1-15.