CN116367356A

CN116367356A - Method, device, equipment and storage medium for transmitting data

Info

Publication number: CN116367356A
Application number: CN202111454702.3A
Authority: CN
Inventors: 吴昊; 尹蕾
Original assignee: Jimi Technology Co ltd
Current assignee: Jimi Technology Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2023-06-30

Abstract

The application discloses a method, a device, equipment and a storage medium for transmitting data. The method comprises the following steps: the method comprises the steps that a first terminal device and a second terminal device establish a direct link on a first link; if the first terminal equipment needs to send data on a first link and a second link, aligning the data sending start time on the two links, wherein the first link and the second link are NSTR links; if the first terminal device only needs to transmit data on one of the first link and the second link, transmitting a message containing a specific parameter to the peer device on the other link while transmitting data on the link, the specific parameter being set according to the transmission duration of the first terminal device on the link. According to the embodiment of the application, the multilink terminal with the direct link is controlled to transmit data, and the interference generated by data receiving and transmitting between the direct link and the traditional link is avoided through the setting of the control frame, so that the packet loss rate is reduced, and the network transmission efficiency is improved.

Description

Method, device, equipment and storage medium for transmitting data

Technical Field

The present disclosure relates to the field of wireless communications, and in particular, to a method, an apparatus, a device, and a storage medium for transmitting data.

Background

802.11be networks, also known as Extremely High Throughput (EHT) networks, 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

The terminals can reduce data transmission transfer links, improve transmission rate and reduce transmission delay by establishing a direct connection link, also called a direct link (TDLS). After introducing the multilink technology, one multilink capable device (i.e., a multilink device) can operate on more than two links simultaneously. The multi-link terminal can establish a plurality of direct connection links, and the transmission rate is improved and the transmission delay is reduced to a greater extent by using the multi-link technology and the direct connection link technology simultaneously. However, when a multilink terminal establishes a direct link on a single link, the direct link and other links connected to the access point interfere with each other if they are adjacent bands. In view of this, embodiments of the present application provide a method, an apparatus, a device, and a storage medium for transmitting data.

In a first aspect, an embodiment of the present application provides a method for transmitting data, including:

the method comprises the steps that a first terminal device and a second terminal device establish a direct link on a first link, wherein the first terminal device and the second terminal device are multi-link devices, the first terminal device and the second terminal device are connected with an access device on a second link, and the first link and the second link are NSTR links;

If the first terminal equipment needs to send data to the second terminal equipment on the first link and needs to send data to the access equipment on the second link, the first terminal equipment aligns the data sending start time on the first link and the second link and simultaneously sends the data;

if the first terminal equipment only needs to send data to the second terminal equipment on the first link, the first terminal equipment starts to send data to the second terminal equipment on the first link and simultaneously sends a first message to the access equipment on the second link, wherein the first message comprises a first parameter, and the first parameter is set according to the sending time of the first terminal equipment on the first link;

if the first terminal equipment only needs to send data to the access equipment on the second link, the first terminal equipment starts to send data to the access equipment on the second link and simultaneously sends a second message to the second terminal equipment on the first link, wherein the second message comprises a second parameter, and the second parameter is according to the sending time of the first terminal equipment on the second link.

In one possible implementation manner, the first message is a CTS-to-AP message, the first parameter is a Duration parameter in the CTS-to-AP message, and a value of the Duration parameter in the CTS-to-AP message is set to be a transmission Duration of the first terminal device on the first link; the second message is a CTS-to-PeerSTA message, the second parameter is a Duration parameter in the CTS-to-PeerSTA message, and a value of the Duration parameter in the CTS-to-PeerSTA message is set to be a sending Duration of the first terminal device on the second link.

In one possible implementation, the method further includes:

after receiving the first message, the access device sets and starts a Timer1 according to a first parameter in the first message, and transmits data according to at least one of the following:

in the running of the Timer1, the access equipment does not send data to the first terminal equipment on the second link;

in the running of the Timer1, the access device does not send data to the second terminal device on the second link, or the access device determines the time for sending the data packet on the second link according to the remaining time of the Timer1, so that the data packet sent to the second terminal device by the access device on the second link is the same as the end time of the data packet sent to the second terminal device by the first terminal device on the first link.

In one possible implementation, the method further includes:

and after the second terminal equipment receives the second message, setting and starting a Timer2 according to a second parameter in the second message, wherein the second terminal equipment does not send data to the first terminal equipment on the first link in the running of the Timer 2.

In one possible implementation manner, the establishing, by the first terminal device, a direct link with the second terminal device on the first link includes:

The method comprises the steps that a direct connection initiator sends a direct connection link establishment request message to a direct connection responder on a first link or a second link, the direct connection link establishment request message comprises link information, and the link information is set according to the direct connection initiator request to establish a link of the direct connection link, wherein the direct connection initiator is first terminal equipment, the direct connection responder is second terminal equipment, or the direct connection initiator is second terminal equipment, and the direct connection responder is first terminal equipment;

the direct connection initiator receives a direct connection link establishment response message sent by a direct connection responder on a first link or a second link, wherein the direct connection link establishment response message indicates agreement to establish the direct connection link on the first link;

the direct connection initiator sends a direct connection link establishment confirmation message to the direct connection responder on the first link or the second link.

In one possible implementation, the link information includes parameters BSSID, TDLS initiator, and TDLS responder, and the link setting of the link information to establish the direct link according to the direct link initiator request includes:

if a direct link is requested to be established on the first link, the parameter BSSID is set to the address of the logical entity operating on the first link in the access device, the parameter TDLS initiator is set to the address of the logical entity operating on the first link in the direct initiator, and the parameter TDLS responder is set to the address of the logical entity operating on the first link in the direct responder;

If a direct link is requested to be established on the second link, the parameter BSSID is set to the address of the logical entity operating on the second link in the access device, the parameter TDLS initiator is set to the address of the logical entity operating on the second link in the direct initiator, and the parameter TDLS responder is set to the address of the logical entity operating on the second link in the direct responder;

if a direct link is requested to be established on the first link and the second link, the parameter BSSID is set as the address of the access device, the parameter TDLS initiator is set as the address of the direct initiator, and the parameter TDLS responder is set as the address of the direct responder.

In a second aspect, an embodiment of the present application provides an apparatus for transmitting data, including a processing module, where the processing module is configured to perform the following steps:

establishing a direct link on a first link through a first terminal device and a second terminal device, wherein the first terminal device and the second terminal device are multi-link devices, the first terminal device and the second terminal device are connected with an access device on a second link, and the first link and the second link are NSTR links;

if the first terminal equipment needs to send data to the second terminal equipment on the first link and needs to send data to the access equipment on the second link, aligning the data sending start time on the first link and the second link through the first terminal equipment, and simultaneously sending the data;

If the first terminal equipment only needs to send data to the second terminal equipment on the first link, sending a first message to the access equipment on the second link while starting to send data to the second terminal equipment on the first link through the first terminal equipment, wherein the first message comprises a first parameter, and the first parameter is set according to the sending time of the first terminal equipment on the first link;

if the first terminal equipment only needs to send data to the access equipment on the second link, sending a second message to the second terminal equipment on the first link while starting to send data to the access equipment on the second link through the first terminal equipment, wherein the second message comprises a second parameter, and the second parameter is according to the sending time of the first terminal equipment on the second link.

In a possible implementation manner, the processing module is further configured to perform the following steps:

after receiving the first message through the access device, setting and starting a Timer (Timer 1) according to a first parameter in the first message, and transmitting data according to at least one of the following:

in the running of the Timer1, data is not sent to the first terminal equipment on the second link through the access equipment;

in the running of the Timer1, the access equipment does not send data to the second terminal equipment on the second link, or the access equipment determines the time length of sending the data packet on the second link according to the remaining time length of the Timer1, so that the data packet sent to the second terminal equipment by the access equipment on the second link is the same as the end time of the data packet sent to the second terminal equipment by the first terminal equipment on the first link.

and after the second message is received by the second terminal equipment, setting and starting a Timer2 according to a second parameter in the second message, wherein in the running of the Timer2, the second terminal equipment does not send data to the first terminal equipment on the first link.

In one possible implementation manner, the establishing a direct link with the second terminal device through the first terminal device on the first link includes:

transmitting a direct link establishment request message to a direct link responder on a first link or a second link by a direct link initiator, wherein the direct link establishment request message contains link information, and the link information is set according to the direct link initiator request to establish a link of the direct link, wherein the direct link initiator is first terminal equipment and the direct link responder is second terminal equipment, or the direct link initiator is second terminal equipment and the direct link responder is first terminal equipment;

receiving a direct link establishment response message sent by a direct link responder on a first link or a second link through a direct link initiator, wherein the direct link establishment response message indicates agreement to establish the direct link on the first link;

and sending a direct link establishment confirmation message to the direct link responder on the first link or the second link through the direct link initiator.

In a third aspect, embodiments of the present application provide an apparatus for transmitting data, including a memory, a processor and a computer program stored on the memory, the processor executing the computer program to implement the steps of the method in the first aspect or a possible implementation manner of the first aspect.

In a fourth aspect, embodiments of the present application provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of the first aspect or in a possible implementation of the first aspect.

In a fifth aspect, embodiments of the present application provide a computer program product comprising instructions which, when executed by a processor, implement the steps of the method of the first aspect or in a possible implementation manner of the first aspect.

It should be noted that, the apparatus according to the second aspect, the device according to the third aspect, the storage medium according to the fourth aspect, and the computer program product according to the fifth aspect are configured to execute the method provided in the first aspect, so that the same beneficial effects as those of the method in the first aspect can be achieved, and embodiments of the present application are not repeated here.

According to the embodiment of the application, the multilink terminal with the direct link is controlled to transmit data, and the interference generated by data receiving and transmitting between the direct link and the traditional link is avoided through the setting of the control frame, so that the packet loss rate is reduced, and the network transmission efficiency is improved.

Drawings

Fig. 1 is a schematic diagram of a method for transmitting data according to an embodiment of the present application;

Fig. 2 is a schematic diagram of an apparatus for transmitting data according to an embodiment of the present application.

Detailed Description

In order to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, 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 present application. While the disclosure has been presented in terms of an exemplary embodiment or embodiments, it should be appreciated that the various aspects of the disclosure can be individually identified as a complete set of aspects. The following embodiments and features of the embodiments may be combined with each other without conflict.

In this application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one of a, b or c may represent: a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b and c may be single or plural. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, 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 merely serve to illustrate and distinguish between the objects to be described, and do not indicate any limitation on the number of devices in the embodiments of the present application.

In this application, the words "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

It should be noted that the multi-link device includes a plurality of logic entities, each logic entity performs data transmission through a link, and each logic entity includes an independent data transceiver module. The single-link device has only one logical entity and only one MAC address, while the multi-link device has one MAC address for each logical entity affiliated to the multi-link device, e.g., a multi-link device operates with three logical entities, then there are four MAC addresses on this physical device, one for the multi-link device and one for each of the three logical entities.

In this embodiment of the present application, the access device may be an Access Point (AP), a router, or other devices, and in this embodiment of the present application, the access point is illustrated as an example, and a logical entity affiliated to the terminal device is referred to as a logical terminal, and a logical entity affiliated to the access point is referred to as a logical access point.

It is assumed that both the terminal device Non-AP MLD1 and the terminal device Non-APMLD2 establish a connection with the access point AP MLD, where Non-AP MLD1 has two logical terminals STA1 and STA2, non-APMLD2 has two logical terminals STA3 and STA4, AP MLD has two logical access points AP1 and AP2, STA1 and STA3 establish a connection with AP1 on the link 1, and STA2 and STA4 establish a connection with AP2 on the link 2. It should be noted that the Non-AP MLD1, the Non-AP MLD2, and the AP MLD may include more than two logic entities, such as three, four, etc., and the number of logic entities included in the three may be different.

Currently, data can be directly transmitted between Non-AP MLD1 and Non-APMLD2 by establishing a direct link. In the following examples, non-AP MLD1 is a direct connection initiator, non-APMLD2 is a direct connection responder, and in other embodiments, non-AP MLD1 may be a direct connection responder, and Non-APMLD2 may be a direct connection initiator. Illustratively, the method for establishing a direct link between Non-AP MLD1 and Non-APMLD2 comprises the steps of:

s1001.Non-AP MLD1 sends a direct link setup request message (e.g. TDLS setup request message) to Non-AP MLD2. Specifically, the Non-AP MLD1 sends the direct link establishment request message to the AP MLD first, and then the AP MLD sends the direct link establishment request message to the Non-AP MLD2, that is, the STA1 or STA2 sends the direct link establishment request message to the AP1 or AP2, and after receiving the direct link establishment request message, the AP1 or AP2 sends the direct link establishment request message to the Non-AP MLD2, where the AP1 sends the message to the STA3 or the AP2 sends the message to the STA4.

The direct link establishment request message may include capability information and link information, which requests link setting for establishment of a direct link according to Non-AP MLD 1. In some embodiments, if Non-AP MLD1 requests that a direct link be established on link1, the link information includes the parameters shown in Table 1.

TABLE 1

Parameters (parameters)	Description of the invention
		BSSID	Basic service set identifier set to address of AP1
TDLS initiator	The direct connection initiator address is set as the address of the STA1
		TDLS responder	The direct connection responder address is set as the address of the STA3

If Non-AP MLD1 requests that a direct link be established on link2, the link information includes the parameters shown in Table 2.

TABLE 2

Parameters (parameters)	Description of the invention
		BSSID	Basic service set identifier set to address of AP2
TDLS initiator	Direct connection initiator address set as address of STA2
		TDLS responder	The direct connection responder address is set as the address of the STA4

If Non-AP MLD1 requests that a direct link be established on both link1 and link2, the link information includes the parameters shown in Table 3. Meanwhile, the direct link establishment request message also contains a parameter Multi-link element, and the parameter Multi-link element comprises parameters shown in table 4.

TABLE 3 Table 3

Parameters (parameters)	Description of the invention
		BSSID	Basic service set identifier set to address of AP MLD1
TDLS initiator	Direct connection initiator address set as address of STA MLD1
		TDLS responder	Direct connection responder address set as address of STA MLD2

TABLE 4 Table 4

Parameters (parameters)	Description of the invention
		STA1 profile	Capabilities and/or operating parameters of STA1
STA2 profile	Capabilities and/or operating parameters of STA2

S1002. the Non-AP MLD2 sends a direct link establishment response message (e.g. TDLS setup response message) to the Non-AP MLD1, where the direct link establishment response message indicates whether to agree to establish the direct link. Specifically, the Non-APMLD2 may directly send the direct link establishment response message to the Non-APMLD1, or may send the direct link establishment response message to the Non-APMLD1 through the APMLD, that is, the direct link establishment response message is sent to the Non-AP MLD1 from the Non-AP MLD2 first, and then sent to the Non-AP MLD1 from the AP MLD.

By way of example, the manner in which Non-AP MLD2 sends the direct link setup response message includes, but is not limited to, any of the following:

1) If the direct link is agreed to be established on link1, a direct link establishment response message is directly sent to STA1 by STA 3.

2) If the direct link is agreed to be established on link2, a direct link establishment response message is directly sent to STA2 by STA 4.

3) If the direct link establishment on link1 and link2 is agreed, the direct link establishment response message is directly sent to STA1 by STA3 or the direct link establishment response message is directly sent to STA2 by STA 4.

4) If the establishment of the direct link is agreed, a direct link establishment response message is sent by the STA3 to the AP1, or by the STA4 to the AP2, and then by the AP1 to the STA1, or by the AP2 to the STA2.

5) If the establishment of the direct link is not agreed, a direct link establishment response message is sent by STA3 to STA1 or by STA4 to STA2.

S1003, after receiving the direct link establishment response message, the Non-APMLD1 sends a direct link establishment confirmation message (such as TDLS setup confirm message) to the Non-AP MLD2 if the direct link establishment response message indicates that the establishment of the direct link is agreed; otherwise, no direct link setup confirm message may be sent to Non-AP MLD2.

By way of example, the manner in which Non-AP MLD1 sends the direct link setup confirm message includes, but is not limited to, any of the following:

1) If a direct link is established on link1, a direct link establishment acknowledgement message is sent by STA1 to STA3 through AP 1.

2) If a direct link is established on link2, a direct link establishment acknowledgement message is sent by STA2 to STA4 through AP 2.

3) If a direct link is established between link1 and link2, a direct link establishment acknowledgement message is sent by STA1 to STA3 through AP1 or by STA2 to STA4 through AP 2.

4) If a direct link is established, a direct link establishment confirmation message is sent by STA1 to STA3 through AP1 or by STA2 to STA4 through AP 2.

In the embodiment of the application, only part of links between Non-APMLD1 and Non-APMLD2 establish a direct link, and the direct link and a link connected with APMLD in addition are mutually NSTR (Non-simultaneous transceiving) links. Where, the NSTR link indicates that data cannot be sent on one link due to interference on links linkx and linky (link x and link y are NSTR links), and data is received on the other link, in this embodiment of the present application, link1 and link2 are assumed to be NSTR links, for convenience of description, it is assumed that a direct link is established on link1, and a direct link is not established on link 2.

After a direct link is established between the Non-APMLD1 and the Non-APMLD2 on the link1, data can be directly transmitted on the link 1. In this embodiment, non-APMLD1 is a data sender, non-APMLD2 is a data receiver, and in other embodiments, non-APMLD1 may be a data receiver, and Non-APMLD2 may be a data sender.

If STA1 needs to transmit data to STA3 on link1 and STA2 needs to transmit data to AP2 on link2, non-APMLD1 controls STA1 and STA2 to align data transmission start times and transmit data on both links simultaneously.

If STA1 needs to send data to STA3 on link1, but STA2 does not need to send data to AP2 on link2, then a first message is sent to AP2 on link2 while data is being sent to STA3 on link1, where the first message includes a first parameter, and the first parameter is set according to the sending duration of STA1 on link 1. It should be noted that, the value of the first parameter may be equal to the transmission duration of STA1 on link1, or may be the transmission duration of STA1 on link1 minus the transmission delay, so long as the time that STA2 cannot receive data on link2 can be indicated. In some embodiments, the first message may be a CTS-to-AP message, and the Duration parameter in the CTS-to-AP message may be used as the first parameter and set to the sending Duration of STA1 on link1, for example, the CTS-to-AP message includes the parameters shown in table 5.

TABLE 5

After receiving the first message, the AP2 sets and starts a Timer1 according to a first parameter in the first message, and transmits data according to at least one of the following:

1) In the Timer1 operation, no data is transmitted to STA2.

Specifically, in the running of the Timer1, when there is data to be sent to the STA2, the data is buffered and then the data is tried to be sent to the STA2 after waiting for the Timer 1. Wherein, retrying to transmit data may refer to detecting whether the channel is idle or checking whether there are other conditions for limiting transmission (for example, NAV (network allocation vector) value is not zero, or AP2 is in the quick time period (i.e., AP2 is in a period of not transmitting and receiving data)) after Timer1 expires, and transmitting data when the channel is idle and there is no other condition for limiting transmission.

2) In the running of the Timer1, no data is sent to the STA4, or the duration of sending the data packet is determined according to the remaining duration of the Timer1, so that the data packet sent to the STA4 is the same as the end time of the data packet sent to the STA3 by the STA1 on the link 1. The end times may be identical or substantially identical, and substantially identical means that the end times are within a certain range, e.g., less than or equal to 12 microseconds.

Specifically, in the running of the Timer1, when there is data to be sent to the STA4, after the buffer data waits for the Timer1 to expire, the data is tried to be sent to the STA4; alternatively, the end time of the transmission packet may be determined according to the remaining duration of Timer1, so that the end time of the packet transmitted to STA4 may be the same as the end time of the packet transmitted to STA3 by STA1, which is exemplified as follows:

obtaining the remaining duration of Timer1, here assuming the remaining duration is p1 (units: milliseconds or other predefined time units); setting a value TXOP_value=p1 of a transmission duration parameter TXOP according to the residual duration, or TXOP_value=p1-delay 1, wherein delay1 comprises a transmission delay of a message transmitted by the STA2 to the AP2 and a processing delay of the message by the AP 2; and calculating the time TX_ppdu=TXOP_value-SIFS-T_ack required for transmitting the data packet, wherein SIFS is a short inter-frame interval, T_ack is the time required for transmitting the acknowledgement message, and determining the size of the data packet according to the TX_ppdu and a modulation coding mechanism so that the data packet is transmitted at the TX_ppdu time.

If STA2 needs to send data to AP2 on link2, but STA1 does not need to send data to STA3 on link1, then a second message is sent to STA3 on link1 while data is being sent to AP2 on link2, where the second message includes a second parameter, and the second parameter is set according to the sending duration of STA2 on link 2. It should be noted that, the value of the second parameter may be equal to the transmission duration of STA2 on link2, or may be the transmission duration of STA2 on link2 minus the transmission delay, so long as the time that STA1 cannot receive data on link1 can be indicated. In some embodiments, the second message may be a CTS-to-peerst message, and the Duration parameter in the CTS-to-peerst message may be used as the second parameter, and the value of the Duration parameter may be set to be the sending Duration of STA2 on link2, for example, the CTS-to-peerst message includes the parameters shown in table 6.

TABLE 6

After receiving the second message, the STA3 sets and starts a Timer2 according to a second parameter in the second message, and in the running of the Timer2, no data is sent to the STA1. Specifically, when there is data to be transmitted to STA1, the buffer waits for Timer2 to elapse, and then attempts to transmit data to STA1.

The embodiment of the application also provides a device for transmitting data, which comprises a processing module, wherein the processing module is used for executing the following steps:

Optionally, the processing module is further configured to perform the following steps:

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 embodiments of the present application, the apparatus may also be a chip or a chip system, for example: system on chip (SoC). The present application is not limited herein.

The embodiment of the application also provides a device for transmitting data, and fig. 2 is a schematic diagram of the device for transmitting data according to the embodiment of the application. As shown in fig. 2, the device 200 comprises a processor 201, a memory 202 and a communication interface 203, wherein the processor 201, the memory 202 and the communication interface 203 communicate with each other via a bus 204, and instructions executable by the processor 201 are stored in the memory 202, and are loaded and executed by the processor 201 to control the communication interface 203 to transmit signals and/or receive signals.

Alternatively, the memory 202 may include read only memory and random access memory, and provide instructions and data to the processor 201. A portion of memory 202 may also include non-volatile random access memory. For example, the memory 202 may also store information of the device type. The processor 201 may be configured to execute instructions stored in the memory 201, and when the processor 201 executes the instructions, the processor 201 may perform corresponding steps and/or flows in the above-described method embodiments.

It should be appreciated that in embodiments of the present application, 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 application 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 the embodiments of the present application are all or partially produced. 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 application, 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 application.

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 application.

In the several embodiments provided in this application, 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.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of transmitting data, comprising:

2. The method according to claim 1, wherein the first message is a CTS-to-AP message, the first parameter is a Duration parameter in the CTS-to-AP message, and a value of the Duration parameter in the CTS-to-AP message is set to a transmission Duration of the first terminal device on the first link; the second message is a CTS-to-PeerSTA message, the second parameter is a Duration parameter in the CTS-to-PeerSTA message, and a value of the Duration parameter in the CTS-to-PeerSTA message is set to be a sending Duration of the first terminal device on the second link.

3. A method of transmitting data according to claim 1, further comprising:

4. A method of transmitting data according to claim 1, further comprising:

5. The method of transmitting data according to claim 1, wherein the first terminal device and the second terminal device establishing a direct link over the first link comprises:

6. The method according to claim 5, wherein the link information includes parameters BSSID, TDLSinitiator and TDLS response, and the link information includes link settings for establishing the direct link according to the direct link initiator request:

If a direct link is requested to be established on the first link, the parameter BSSID is set to the address of the logical entity operating on the first link in the access device, the parameter TDLSinitiator is set to the address of the logical entity operating on the first link in the direct initiator, and the parameter TDLS responder is set to the address of the logical entity operating on the first link in the direct responder;

if a direct link is requested to be established on the second link, the parameter BSSID is set to the address of the logical entity operating on the second link in the access device, the parameter TDLSinitiator is set to the address of the logical entity operating on the second link in the direct initiator, and the parameter TDLS responder is set to the address of the logical entity operating on the second link in the direct responder;

if a direct link is requested to be established on the first link and the second link, the parameter BSSID is set to the address of the access device, the parameter TDLSinitiator is set to the address of the direct initiator, and the parameter TDLS responder is set to the address of the direct responder.

7. An apparatus for transmitting data, comprising a processing module, wherein the processing module is configured to perform the steps of:

8. The apparatus for transmitting data according to claim 7, wherein the first message is a CTS-to-AP message, the first parameter is a Duration parameter in the CTS-to-AP message, and a value of the Duration parameter in the CTS-to-AP message is set to a transmission Duration of the first terminal device on the first link; the second message is a CTS-to-PeerSTA message, the second parameter is a Duration parameter in the CTS-to-PeerSTA message, and a value of the Duration parameter in the CTS-to-PeerSTA message is set to be a sending Duration of the first terminal device on the second link.

9. The apparatus for transmitting data according to claim 7, wherein the processing module is further configured to perform the steps of:

10. The apparatus for transmitting data according to claim 7, wherein the processing module is further configured to perform the steps of:

11. The apparatus for transmitting data of claim 7, wherein the establishing a direct link over the first link with the second terminal device via the first terminal device comprises:

12. The apparatus for transmitting data according to claim 11, wherein the link information includes parameters BSSID, TDLSinitiator and TDLS response, and the link information includes a link setting for establishing a direct link according to a direct link initiator request:

13. An apparatus for transmitting data, comprising a memory, a processor and a computer program stored on the memory, characterized in that the processor executes the computer program to carry out the steps of the method according to any one of claims 1-6.

14. 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 steps of the method according to any of claims 1-6.