CN115567987A - Data transmission method, device, equipment and medium - Google Patents

Abstract

The present disclosure relates to a data transmission method, device, equipment and medium, the method includes: determining the sending time based on the size of the service data block to be sent and the effective sending rate, wherein the effective sending rate is based on the actual sending rate and the set Determined by the specified effective transmission rate coefficient; according to the determined transmission time and the set deviation coefficient, determine the transmission opportunity limit TXOP Limit corresponding to the service data block; according to the minimum contention window CWmin, maximum The contention window CWmax and the inter-arbitration frame interval AIFSN preempt the target channel; based on the TXOP Limit, send the service message included in the service data block through the preempted target channel. The present disclosure can reduce the delay of existing WIFI-based data transmission.

Description

A data transmission method, device, equipment and medium

technical field

The present disclosure relates to the field of communication technologies, and in particular, to a data transmission method, device, equipment and medium.

Background technique

In the audio and video transmission process based on WIFI (wireless network communication technology), the audio and video generally adopt the IEEE802.11e protocol. EDCA (Enhanced Distributed Channel Access) defined by the IEEE 802.11e protocol specifies four types of access (Access Category, AC), and each type corresponds to a type of data. Each access category is configured with TXOP (Transmission Opportunity, sending opportunity) parameters: CWmin (minimum contention window), CWmax (maximum contention window), TXOP Limit (Transmission Opportunity Limit, sending opportunity limit) and AIFS (arbitration interframe space).

In the existing audio and video transmission process, data transmission is usually performed based on the set fixed TXOP parameters. Audio and video are generally encoded, transmitted, and decoded in the form of frames (data blocks). A frame in audio and video is often passed through Multiple packets are sent. Since multiple packets are too large to be sent within the TXOP Limit, they are generally sent through multiple TXOPs, and each TXOP needs to compete based on the configured TXOP parameters. If the competition fails, it needs to Backoff races again until a successful send. This increases the delay of audio and video transmission, and the more packets occupied by audio and video frames, the greater the delay in sending.

Contents of the invention

The present disclosure provides a data transmission method, device, equipment and medium to reduce the delay of existing WIFI-based data transmission.

According to a first aspect of an embodiment of the present disclosure, there is provided a data transmission method, the method comprising:

Determine the sending time based on the size of the service data block to be sent and the effective sending rate, wherein the effective sending rate is determined based on the actual sending rate and the set effective sending rate coefficient;

Determine the TXOPLimit corresponding to the service data block according to the determined sending time and the set deviation coefficient;

Seize the target channel according to the CWmin, CWmax and AIFSN of the service data block;

Based on the TXOP Limit, send the service packet included in the service data block through the preempted target channel.

This disclosure determines the TXOP Limit corresponding to the service data block through the size of the service data block, the actual transmission rate, the effective transmission rate coefficient and the deviation coefficient, so that the service message included in the service data block can be sent through one TXOP, reducing the existing Latency of data transmission based on WIFI.

In a possible implementation manner, before preempting the target channel according to the CWmin, CWmax and AIFSN of the service data block, further includes:

Determine the parameter set corresponding to the service type of the service data block according to the preset correspondence between the data block type and the parameter set, where the parameter set includes part or all of CWmin, CWmax, and AIFSN.

The disclosure determines the parameter set corresponding to the service type of the service data block according to the preset correspondence between the data block type and the parameter set, increases the success rate of the service data block to seize the target channel, and reduces the existing WIFI-based data transmission. delay.

In a possible implementation manner, before preempting the target channel according to the CWmin, CWmax and AIFSN of the service data block, further includes:

Determine the first service message without source port information and the second service message with source port information among the set number of successfully sent historical service messages;

Adjust part or all of the CWmin, CWmax, and AIFSN of the service data block according to the ratio of the quantity of the first service packets to the quantity of the second service packets.

This disclosure adjusts some or all of the CWmin, CWmax, and AIFSN of the service data block through the ratio of the number of the first service message in the historical service message to the number of the second service message, so as to dynamically ensure that other services The opportunity to send the service message of the data block to prevent the service message of other service data blocks from being sent out in time due to preemption.

In a possible implementation manner, according to the ratio of the number of the first service message to the number of the second service message, adjusting part or all of the CWmin, CWmax and AIFSN of the service data block All, including:

If the ratio of the number of the first service packets to the number of the second service packets is lower than a set first threshold, increasing some or all of the CWmin, CWmax, and AIFSN of the service data block;

If the ratio of the number of the first service packets to the number of the second service packets is higher than the set second threshold, reduce some or all of the CWmin, CWmax and AIFSN of the service data block;

Wherein, the first threshold is smaller than the second threshold.

In this disclosure, when the proportion of the first message is small, by increasing some or all of the CWmin, CWmax, and AIFSN of the service data block, the priority of the service message included in the service data block is reduced, thereby increasing other The opportunity to send the service message of the service data block; when the first message accounts for more, by reducing some or all of the CWmin, CWmax and AIFSN of the service data block, increase the service message included in the service data block The priority of the message, thereby reducing the chance of sending service messages of other service data blocks.

In a possible implementation manner, the adding part or all of the CWmin, CWmax and AIFSN of the service data block includes:

increasing some or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding set first multiple; or

According to the correspondence between the preset difference range and the first multiple corresponding to each parameter in the parameter set, determine each of the parameter sets corresponding to the difference range where the first difference between the first threshold and the ratio is located. The first multiple corresponding to the parameter is to increase part or all of the CWmin, CWmax and AIFSN of the service data block according to the corresponding determined first multiple.

In a possible implementation manner, the reducing part or all of the CWmin, CWmax and AIFSN of the service data block includes:

Reducing some or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding set second multiple; or

According to the correspondence between the preset difference range and the second multiple corresponding to each parameter in the parameter set, determine each of the parameter sets corresponding to the difference range where the second difference between the second threshold and the ratio is located. The second multiple corresponding to the parameter, reducing part or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding determined second multiple, wherein the first multiple corresponding to the same parameter is less than the second multiple.

According to a second aspect of an embodiment of the present disclosure, there is provided a data transmission device, the device comprising:

The first determining module is configured to determine the sending time based on the size of the service data block to be sent and the effective sending rate, wherein the effective sending rate is determined based on the actual sending rate and the set effective sending rate coefficient;

The second determining module is used to determine the TXOP Limit corresponding to the service data block according to the determined sending time and the set deviation coefficient;

A preemption module, configured to preempt the target channel according to the CWmin, CWmax and AIFSN of the service data block;

A sending module, configured to send the service message included in the service data block through the preempted target channel based on the TXOP Limit.

In a possible implementation manner, before preempting the target channel according to the CWmin, CWmax and AIFSN of the service data block, the device further includes:

The third determination module is configured to determine the parameter set corresponding to the service type of the service data block according to the preset correspondence between the data block type and the parameter set, wherein the parameter set includes CWmin, CWmax, and part of AIFSN or all.

In a possible implementation manner, before preempting the target channel according to the CWmin, CWmax and AIFSN of the service data block, the device further includes:

The fourth determination module is used to determine the first service message without source port information and the second service message with source port information among the set number of successfully sent historical service messages;

An adjustment module, configured to adjust part or all of the CWmin, CWmax, and AIFSN of the service data block according to the ratio of the quantity of the first service message to the quantity of the second service message.

In a possible implementation manner, the adjustment module is configured to adjust the CWmin, CWmax, and Some or all of the AIFSN, including:

If the ratio of the number of the first service packets to the number of the second service packets is lower than a set first threshold, increasing some or all of the CWmin, CWmax, and AIFSN of the service data block;

If the ratio of the number of the first service packets to the number of the second service packets is higher than the set second threshold, reduce some or all of the CWmin, CWmax and AIFSN of the service data block;

Wherein, the first threshold is smaller than the second threshold.

In a possible implementation manner, the adjustment module is configured to increase part or all of the CWmin, CWmax and AIFSN of the service data block, including:

increasing some or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding set first multiple; or

According to the correspondence between the preset difference range and the first multiple corresponding to each parameter in the parameter set, determine each of the parameter sets corresponding to the difference range where the first difference between the first threshold and the ratio is located. The first multiple corresponding to the parameter is to increase part or all of the CWmin, CWmax and AIFSN of the service data block according to the corresponding determined first multiple.

In a possible implementation manner, the adjustment module, configured to reduce part or all of the CWmin, CWmax and AIFSN of the service data block, includes:

Reducing some or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding set second multiple; or

According to the correspondence between the preset difference range and the second multiple corresponding to each parameter in the parameter set, determine each of the parameter sets corresponding to the difference range where the second difference between the second threshold and the ratio is located. The second multiple corresponding to the parameter, reducing part or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding determined second multiple, wherein the first multiple corresponding to the same parameter is less than the second multiple.

According to a third aspect of an embodiment of the present disclosure, there is provided an electronic device including: a processor; a memory for storing processor-executable instructions; wherein, the processor executes the executable instructions to implement the above data transmission method A step of.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium, on which computer instructions are stored, and when the instructions are executed by a processor, the steps of the above-mentioned data transmission method are implemented.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic diagram of an application scenario according to an exemplary embodiment;

Fig. 2 is a flow chart showing a data transmission method according to an exemplary embodiment;

Fig. 3 is a schematic block diagram of a data transmission method according to an exemplary embodiment;

Fig. 4 is a detailed flowchart of a data transmission method according to an exemplary embodiment;

Fig. 5 is a schematic diagram of a data transmission device according to an exemplary embodiment;

Fig. 6 is a schematic diagram of an electronic device showing a data transmission method according to an exemplary embodiment;

Fig. 7 is a schematic diagram of a program product showing a data transmission method according to an exemplary embodiment.

detailed description

In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

The following is an explanation of some words that appear in the text:

1. The term "and/or" in the embodiments of the present disclosure describes the association relationship of associated objects, indicating that there may be three relationships, for example, A and/or B, which may mean: A exists alone, A and B exist simultaneously, and There are three cases of B. The character "/" generally indicates that the contextual objects are an "or" relationship.

2. The terms "first", "second" and the like in the description and claims of the present disclosure and the above drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein can be practiced in sequences other than those illustrated or described herein.

The application scenarios described in the embodiments of the present disclosure are to illustrate the technical solutions of the embodiments of the present disclosure more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present disclosure. It appears that the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems. Wherein, in the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

In the audio and video transmission process based on WIFI, the audio and video generally adopt the IEEE 802.11e protocol. EDCA defined by the IEEE802.11e protocol specifies four access types, and each type corresponds to a type of data. Each access category is configured with TXOP parameters: CWmin, CWmax, TXOP Limit and AIFS. Among them, AIFS is the inter-frame interval waiting before transmitting data, and its value varies according to different service types. The low-level service is greater than the high-level service, that is, the waiting time for the channel to be idle is long, and the access channel is delayed; CWmin and CWmax are After waiting for an AIFS, each backoff process sets the timer to any value between [1, CW+1]. The smaller CWmin and CWmax means that the station can access the channel with a greater probability, thus The corresponding priority is higher; TXOP Limit is the maximum duration value of TXOP, and a station can continuously transmit multiple frames within the TXOP Limit time without re-competing for the channel after obtaining TXOP Limit, which helps to improve channel utilization.

In the existing audio and video transmission process, data transmission is usually performed based on the set fixed TXOP parameters. Audio and video are generally encoded, transmitted, and decoded in the form of frames (data blocks). A frame in audio and video is often passed through Multiple packets are sent. Since multiple packets are too large to be sent within the TXOP Limit, they are generally sent through multiple TXOPs, and each TXOP needs to compete based on the configured TXOP parameters. If the competition fails, it needs to Backoff races again until a successful send. This increases the delay of audio and video transmission, and the more packets occupied by audio and video frames, the greater the delay in sending.

Therefore, in order to solve the above-mentioned problems, the present disclosure provides a data transmission method, device, equipment and medium to reduce the delay of existing WIFI-based data transmission.

First refer to FIG. 1 , which is a schematic diagram of an application scenario of an embodiment of the present disclosure, including a communication device A and a communication device B. Referring to FIG. The communication device A and the communication device B can be mobile phones, computers, etc., and the communication device A is used for data transmission with the communication device B through the WIFI network.

In some embodiments, a data transmission method provided by the present disclosure is described below through a specific embodiment, as shown in FIG. 2 , including:

Step 201: Determine the sending time based on the size of the service data block to be sent and the effective sending rate, wherein the effective sending rate is determined based on the actual sending rate and the set effective sending rate coefficient;

In the present disclosure, the actual transmission rate can be obtained by monitoring the current WIFI negotiation rate in real time, and the above-mentioned effective transmission rate coefficient can be 70% or other values. The size of the above service data block is obtained by calling the sending interface DH_TXOP_SOCKET from the service layer based on the service data block.

Step 202: Determine the TXOP Limit corresponding to the service data block according to the determined sending time and the set deviation coefficient;

The deviation coefficient set above may be 150%, or other values.

Step 203, according to the CWmin, CWmax and AIFSN of the service data block, preempt the target channel;

The CWmin, CWmax, and AIFSN of the above-mentioned service data blocks may be preset fixed values, or may be determined by using a preset correspondence between data block types and parameter sets. The smaller the CWmin, CWmax, and AIFSN of the service data block, the higher the success rate of preempting the target channel; otherwise, the lower the success rate of preempting the target channel. According to the CWmin, CWmax and AIFSN of the service data block, the specific process of preempting the target channel is the prior art, and will not be described in detail here.

Step 204: Based on the TXOP Limit, send the service message included in the service data block through the preempted target channel.

Based on the TXOP Limit, the specific process of sending the service message included in the service data block through the preempted target channel is an existing technology, and will not be described in detail here.

This disclosure determines the TXOP Limit corresponding to the service data block through the size of the service data block, the actual transmission rate, the effective transmission rate coefficient and the deviation coefficient, so that the service message included in the service data block can be sent through one TXOP, reducing the existing Latency of data transmission based on WIFI.

The data transmission method provided above will be described in detail below:

First, determine the sending time based on the size of the service data block to be sent and the effective sending rate, wherein the effective sending rate is determined based on the actual sending rate and the set effective sending rate coefficient;

As shown in Figure 3, the DH_TXOP APP module is used to obtain the size, service type and source port information of each service message based on the service data block, fill it into the BLOCK_INFO data block information structure and send it to DH_TXOP CORE module. The DH_TXOP CORE module is used to determine the TXOP parameters corresponding to the service data block according to the received BLOCK_INFO data block information, and send it to the DH_TXOP DRIVER module. The DH_TXOP DRIVER module is used to adjust the received TXOP parameters according to historical service messages.

The sending time can be calculated using the following formula:

T=block_info.len/(V*a);

Among them, T is the sending time, block_info.len is the size of the service data block, V is the actual sending rate, a is the effective sending rate coefficient, and a can be 70% or other values.

Then, according to the determined sending time and the set deviation coefficient, determine the TXOP Limit corresponding to the service data block;

As shown in Figure 3, the DH_TXOP CORE module is used to determine the TXOP Limit corresponding to the service data block according to the actual transmission rate, effective transmission rate coefficient, deviation coefficient and the size of the service data block in the received BLOCK_INFO data block information.

The TXOP Limit corresponding to the service data block can be calculated by the following formula:

TXOP Limit = T*b;

Wherein, T is the sending time, b is a set deviation coefficient, and b can be 150% or other values.

Secondly, according to the CWmin, CWmax and AIFSN of the service data block, preempt the target channel;

Before the above steps, part or all of the CWmin, CWmax and AIFSN of the service data block can be determined by the following method:

Determine the parameter set corresponding to the service type of the service data block according to the preset correspondence between the data block type and the parameter set, where the parameter set includes part or all of CWmin, CWmax, and AIFSN.

As shown in Figure 3, the DH_TXOP CORE module is used to determine the corresponding CWmin, CWmax, and AIFSN according to the preset correspondence between the data block type and the parameter set and the service type of the service data block in the received BLOCK_INFO data block information. part or all of .

The above parameter set is a parameter that needs to be determined. When CWmin, CWmax, and AIFSN all need to be determined, the above parameter set is CWmin, CWmax, and AIFSN.

For example, when the service type of the service data block is an audio-video type, according to the preset correspondence between the data block type and CWmin, CWmax, and AIFSN, it can be determined that CWmin=2, CWmax=2 corresponding to the service data block of the audio-video type 2, AIFSN=2; when the service type of the service data block is the download type, according to the corresponding relationship between the preset data block type and CWmin, CWmax and AIFSN, it can be determined that the corresponding CWmin=100 of the service data block of the download type, CWmax=3000, AIFSN=10.

When some parameters in CWmin, CWmax, and AIFSN are set fixed values, the parameters in CWmin, CWmax, and AIFSN that are not set to fixed values are parameters that need to be determined, that is, parameter sets.

For example, if CWmin is preset to a fixed value of 2, when the service type of the service data block is audio and video type, according to the preset correspondence between the data block type and CWmax and AIFSN, it can be determined that the service data block of the audio and video type corresponds to CWmax=2, AIFSN=2; if preset CWmin and CWmax are fixed values 2 and 2 respectively, when the service type of the service data block is audio and video type, according to the correspondence between the preset data block type and AIFSN, it can AIFSN=2 corresponding to the service data block of the audio and video type is determined. If the preset AIFSN is a fixed value of 10, when the service type of the service data block is the download type, according to the correspondence between the preset data block type and CWmin and CWmax, it can be determined that the corresponding CWmin= of the service data block of the audio and video type 100, CWmax=3000; if preset CWmin and AIFSN are fixed values of 100 and 10 respectively, when the service type of the service data block is download type, according to the correspondence between the preset data block type and CWmax, the audio and video can be determined CWmax=3000 corresponding to the type of service data block.

As shown in Figure 3, the determined TXOP Limit, CWmin, CWmax, and AIFSN are sent to the DH_TXOP DRIVER module through the DH_TXOP CORE module. After the block's CWmin, CWmax, and AIFSN, the following method can be used to determine and adjust part or all of the CWmin, CWmax, and AIFSN of the service data block:

Determine the first service message without source port information and the second service message with source port information among the set number of successfully sent historical service messages;

Specifically, the above-mentioned set number may be 50, or other numerical values. The above-mentioned first service message is another service message, and the second message is a service message included in the service data block. Wherein, the other service message may be a service message included in multiple data blocks of a different type from the service data block, or may be a service message included in a data block of a different type from the service data block.

Adjust part or all of the CWmin, CWmax, and AIFSN of the service data block according to the ratio of the quantity of the first service packets to the quantity of the second service packets.

Optionally, some or all of the CWmin, CWmax, and AIFSN of the service data block may be adjusted according to the ratio of the number of the first service packets to the set number; it may also be adjusted according to the second The ratio of the number of service packets to the set number adjusts some or all of the CWmin, CWmax, and AIFSN of the service data block.

According to the ratio of the quantity of the first service message to the quantity of the second service message, adjusting part or all of the CWmin, CWmax and AIFSN of the service data block is divided into the following two situations:

In the first case, if the ratio of the number of the first service packets to the number of the second service packets is lower than the set first threshold, then increase the CWmin, CWmax and AIFSN of the service data block part or all of

Specifically, when the ratio of the number of the first service packets to the number of the second service packets is lower than the set first threshold, it means that the sending of the first service packets is affected, and in order to ensure that the second For an opportunity to send a service message, it is necessary to reduce the priority of the service data block, that is, increase some or all of the CWmin, CWmax, and AIFSN of the service data block, thereby reducing the success rate of preempting the target channel.

In the second case, if the ratio of the quantity of the first service message to the quantity of the second service message is higher than the set second threshold, then reduce the CWmin, CWmax and AIFSN of the service data block Part or all of ; wherein, the first threshold is smaller than the second threshold.

Specifically, when the ratio of the number of the first service packets to the number of the second service packets is higher than the set first threshold, it means that the sending of the second service packets is affected, and in order to ensure that the first 2. The opportunity to send a service message needs to increase the priority of the service data block, that is, reduce part or all of the CWmin, CWmax and AIFSN of the service data block, so as to increase the success rate of preempting the target channel.

In addition to the above two conditions, it also includes: if the ratio of the number of the first service packets to the number of the second service packets is higher than the set first threshold and lower than the set second threshold, then Some or all of CWmin, CWmax and AIFSN of the service data block are not adjusted.

Taking adjusting part or all of the CWmin, CWmax, and AIFSN of the service data block according to the ratio of the number of the first service message to the set number as an example, if the set number is 50, the first One threshold is 10%, and the second threshold is 40%. When the quantity of the first service message is 4, the ratio of the quantity of the first service message to the set quantity is 8%, and 8%<10%, then increase the CWmin, CWmax and AIFSN of the service data block Part or all; when the quantity of the first service message is 25, the ratio of the quantity of the first service message to the set quantity is 50%, and if 50%>40%, then reduce the CWmin and CWmax of the service data block and part or all of the AIFSN; when the number of the first service message is 16, the ratio of the number of the first service message to the set number is 32%, and if 10%<32%<40%, the all part or all of CWmin, CWmax and AIFSN of the above service data block.

When it is the first case above, some or all of the CWmin, CWmax and AIFSN of the service data block can be increased by the following two methods:

The first method is to increase part or all of the CWmin, CWmax and AIFSN of the service data block according to the first multiple of the corresponding setting;

Optionally, part or all of the CWmin, CWmax and AIFSN of the service data block may be increased by the same first multiple.

For example, if the first multiple is 1.05, part or all of the CWmin, CWmax, and AIFSN of the service data block are increased by 1.05.

Optionally, part or all of the CWmin, CWmax and AIFSN of the service data block may be increased according to different corresponding first multiples.

For example, if the CWmin, CWmax and AIFSN of the service data block are increased, then the CWmin of the service data block is increased by 1.03 times, the CWmax is increased by 1.05 times, and the AIFSN is increased by 1.08 times.

In the second method, according to the correspondence between the preset difference range and the first multiple corresponding to each parameter in the parameter set, it is determined that the first threshold corresponds to the difference range where the first difference between the ratios is located. The first multiplier corresponding to each parameter in the parameter set, increasing part or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding determined first multiplier.

Optionally, when part or all of the first multiples corresponding to CWmin, CWmax, and AIFSN of the service data block are the same, the first multiple may be determined according to a preset relationship between the difference range and the first multiple. The first multiple corresponding to the difference range where the first difference between the threshold and the ratio is located, part or all of the CWmin, CWmax, and AIFSN of the service data block are respectively performed according to the determined first multiple Increase.

For example, if the first threshold is 10%, the preset difference ranges include (0-2%], (2%-4%], (4%-6%], (6%-8%] and (8%-10%), the corresponding first multiples are 1.03 times, 1.04 times, 1.05 times, 1.06 times and 1.07 times respectively, when the ratio is 5%, then the first difference is 5%, where If the difference range is (4%-6%], then the corresponding first multiple is 1.05 times, and part or all of the CWmin, CWmax and AIFSN of the service data block are respectively increased by 1.05 times.

Optionally, when the first multiples corresponding to some or all of the CWmin, CWmax, and AIFSN of the service data block are different, according to the correspondence between the preset difference range and the first multiples corresponding to each parameter in the parameter set , determine the first multiple corresponding to each parameter in the parameter set corresponding to the difference range corresponding to the first difference between the first threshold and the ratio, and divide the CWmin, CWmax and AIFSN of the service data block into Part or all of them are respectively increased according to the corresponding determined first multiple.

For example, if the first threshold is 10%, the preset difference ranges include (0-2%], (2%-4%], (4%-6%], (6%-8%] and (8%-10%). For CWmin, the corresponding first multiples are 1.03 times, 1.04 times, 1.05 times, 1.06 times and 1.07 times respectively. For CWmax, the corresponding first multiples are 1.01 times and 1.02 times respectively , 1.03 times, 1.04 times and 1.05 times, for AIFSN, the corresponding first multiples are 1.04 times, 1.05 times, 1.06 times, 1.07 times and 1.08 times respectively. When the ratio is 5%, the first difference is 5%, where the difference range is (4%-6%], if it is necessary to increase the CWmin, CWmax and AIFSN of the service data block, the corresponding first multiple of the CWmin, CWmax and AIFSN of the service data block is respectively 1.05 times, 1.03 times and 1.06 times, the CWmin, CWmax and AIFSN of the service data block are respectively increased according to the corresponding 1.05 times, 1.03 times and 1.06 times.

In addition to the second method above, the third method below is also included:

According to the corresponding relationship between the preset ratio range and the first multiple corresponding to each parameter in the parameter set, determine the first multiple corresponding to each parameter in the parameter set corresponding to the ratio range where the ratio is located, and calculate the CWmin of the business data block Part or all of , CWmax and AIFSN are respectively increased according to the corresponding determined first multiple.

Optionally, when part or all of the CWmin, CWmax, and AIFSN of the service data block correspond to the same first multiple, the corresponding relationship between the preset ratio range and the first multiple can be used to determine the ratio. The first multiplier corresponding to the ratio range increases part or all of the CWmin, CWmax and AIFSN of the service data block according to the determined first multiplier.

For example, if the ratio is 9%, the preset ratio ranges include (0-2%], (2%-4%], (4%-6%], (6%-8%] and (8% -10%), the corresponding first multiples are 1.07 times, 1.06 times, 1.05 times, 1.04 times and 1.03 times respectively, then the ratio range of the ratio is (8%-10%), then the corresponding first The multiple is 1.03 times, and part or all of the CWmin, CWmax, and AIFSN of the service data block are respectively increased by 1.03 times.

Optionally, when the first multiples corresponding to some or all of the CWmin, CWmax, and AIFSN of the service data block are different, according to the correspondence between the preset ratio range and the first multiples corresponding to each parameter in the parameter set, Determine the first multiple corresponding to each parameter in the parameter set corresponding to the ratio range where the ratio is located, and perform part or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding determined first multiple. Increase.

For example, if the ratio is 9%, the preset ratio ranges include (0-2%], (2%-4%], (4%-6%], (6%-8%] and (8% -10%), for CWmin, the corresponding first multiples are 1.07 times, 1.06 times, 1.05 times, 1.04 times and 1.03 times respectively; for CWmax, the corresponding first multiples are 1.06 times, 1.05 times, 1.04 times respectively . If it is necessary to increase CWmin, CWmax and AIFSN of the service data block, the corresponding first multiple of CWmin, CWmax and AIFSN of the service data block is 1.03 times, 1.02 times and 1.04 times respectively, and the CWmin of the service data block , CWmax and AIFSN are increased by the corresponding 1.03 times, 1.02 times and 1.04 times respectively.

When it is the second case, part or all of the CWmin, CWmax and AIFSN of the service data block can be reduced in the following two ways:

In the first way, part or all of the CWmin, CWmax and AIFSN of the service data block are respectively reduced according to the second multiple of the corresponding setting;

Optionally, some or all of the CWmin, CWmax, and AIFSN of the service data block may be respectively reduced by a set second multiple. Wherein, the first multiple is smaller than the second multiple.

For example, if the second multiple is 1.2 times, part or all of the CWmin, CWmax and AIFSN of the service data block are reduced by 1.2 times.

Optionally, some or all of the CWmin, CWmax, and AIFSN of the service data block may also be reduced by a corresponding set second multiple.

For example, if the CWmin, CWmax and AIFSN of the service data block are reduced, then the CWmin of the service data block is reduced by a corresponding 1.2 times, the CWmax is reduced by a 1.21 times, and the AIFSN is reduced by a 1.22 times.

In the second way, according to the correspondence between the preset difference range and the second multiple corresponding to each parameter in the parameter set, it is determined that the second threshold corresponds to the difference range where the second difference between the ratios is located. The second multiple corresponding to each parameter in the parameter set of the parameter set, part or all of the CWmin, CWmax, and AIFSN of the service data block are respectively reduced according to the corresponding second multiple determined, wherein the same parameter corresponds to all The first multiple is smaller than the second multiple.

Optionally, when part or all of the CWmin, CWmax, and AIFSN of the service data block correspond to the same second multiple, the second threshold is determined according to the preset correspondence between the difference range and the second multiple A second multiple corresponding to the difference range where the second difference between the ratios is located, reducing part or all of the CWmin, CWmax, and AIFSN of the service data block according to the determined second multiple .

For example, if the second threshold is 40%, the preset difference ranges include (0-15%], (15%-30%], (30%-45%] and (45%-60%), The corresponding second multiples are 1.2 times, 1.21 times, 1.22 times and 1.23 times respectively. When the ratio is 45%, the second difference is 5%, and the difference range is (0-15%], Then the corresponding second multiple is 1.2 times, and part or all of the CWmin, CWmax, and AIFSN of the service data block are respectively reduced by 1.2 times.

Optionally, when part or all of the CWmin, CWmax, and AIFSN of the service data block have different second multiples, according to the correspondence between the preset difference range and the second multiples corresponding to the parameters in the parameter set , determining the second multiple corresponding to each parameter in the parameter set corresponding to the difference range where the second difference between the second threshold and the ratio is located, and dividing the CWmin, CWmax and AIFSN of the service data block Part or all of them are respectively reduced according to the corresponding determined second multiple.

For example, if the second threshold is 40%, the preset difference ranges include (0-15%], (15%-30%], (30%-45%] and (45%-60%), For CWmin, the corresponding second multiples are 1.21 times, 1.22 times, 1.23 times and 1.24 times respectively; for CWmax, the corresponding second multiples are 1.2 times, 1.21 times, 1.22 times and 1.23 times respectively; for AIFSN, its The corresponding second multiples are 1.24 times, 1.25 times, 1.26 times and 1.27 times respectively. When the ratio is 45%, the second difference is 5%, and the difference range is (0-15%], if Need to reduce the CWmin, CWmax and AIFSN of the service data block, then the second multiple corresponding to the CWmin, CWmax and AIFSN of the service data block is 1.21 times, 1.2 times and 1.24 times respectively, and the CWmin, CWmax and AIFSN of the service data block are reduced. CWmax and AIFSN are reduced by the corresponding 1.21 times, 1.2 times and 1.24 times respectively.

In addition to the second method above, the following third method is also included:

According to the correspondence between the preset ratio range and the second multiple corresponding to each parameter in the parameter set, determine the second multiple corresponding to each parameter in the parameter set corresponding to the ratio range where the ratio is located, and calculate the CWmin of the business data block Part or all of , CWmax and AIFSN are respectively reduced according to the corresponding determined second multiple.

Optionally, when part or all of the CWmin, CWmax, and AIFSN of the service data block correspond to the same second multiple, the corresponding relationship between the preset ratio range and the second multiple can be used to determine the ratio. The second multiplier corresponding to the ratio range reduces part or all of the CWmin, CWmax and AIFSN of the service data block according to the determined second multiplier.

For example, if the ratio is 45%, the preset ratio ranges include (40%-50%], (50%-60%], (60%-70%], (70%-80%], (80% %-90%] and (90%-100%), the corresponding second multiples are 1.2 times, 1.21 times, 1.22 times, 1.23 times, 1.24 times and 1.25 times respectively, then the ratio range where the ratio is ( 40%-50%], then the corresponding second multiple is 1.2 times, and part or all of the CWmin, CWmax, and AIFSN of the service data block are respectively reduced by 1.2 times.

Optionally, when part or all of the second multiples corresponding to CWmin, CWmax, and AIFSN of the service data block are different, according to the correspondence between the preset ratio range and the second multiple corresponding to each parameter in the parameter set, Determine the second multiple corresponding to each parameter in the parameter set corresponding to the ratio range where the ratio is located, and perform part or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding determined second multiple. reduce.

For example, if the ratio is 45%, the preset ratio ranges include (40%-50%], (50%-60%], (60%-70%], (70%-80%], (80% %-90%] and (90%-100%), for CWmin, its corresponding second multiple is 1.2 times, 1.21 times, 1.22 times, 1.23 times, 1.24 times and 1.25 times, for CWmax, its corresponding second multiple The multiples are 1.22 times, 1.23 times, 1.24 times, 1.25 times, 1.26 times and 1.27 times respectively. For AIFSN, the corresponding first multiples are 1.21 times, 1.22 times, 1.23 times, 1.24 times, 1.25 times and 1.26 times respectively The ratio range where the ratio is located is (40%-50%], if the CWmin, CWmax and AIFSN of the service data block need to be increased, the corresponding first multiple of the CWmin, CWmax and AIFSN of the service data block Respectively 1.2 times, 1.22 times and 1.21 times, the CWmin, CWmax and AIFSN of the service data block are respectively reduced according to the corresponding 1.2 times, 1.22 times and 1.21 times.

Finally, based on the TXOP Limit, send the service message included in the service data block through the preempted target channel.

Taking the need to determine the TXOP parameter corresponding to the service data block as an example, the specific process of the data transmission method proposed in the present disclosure, as shown in Figure 4, includes:

Step 401, the service to be sent calls the sending interface DH_TXOP_SOCKET in the DH_TXOP APP module to send the service data block to the DH_TXOP APP module;

Among them, DH_TXOP_SOCKET encapsulates the SOCKET SEND function of the system.

Step 402, the DH_TXOP APP module obtains the size of the service data block, the service type and the source port information of each message, and fills it into the BLOCK_INFO data block information structure;

Since the business layer calls DH_TXOP_SOCKET, the DH_TXOP APP module can obtain the size of the business data block.

Step 403, the DH_TXOP APP module sends the BLOCK_INFO data block information to the DH_TXOP CORE module;

Wherein, the DH_TXOP APP module calls the system function to send the service data block to other layers for processing, which is a prior art and will not be described in detail.

Step 404, the DH_TXOP CORE module receives and parses the BLOCK_INFO data block information sent by the DH_TXOP APP module;

Step 405, the DH_TXOP CORE module determines the TXOP Limit corresponding to the service data block according to the actual transmission rate, the size of the service data block, the effective transmission rate coefficient and the deviation coefficient;

Step 406, the DH_TXOP CORE module determines the CWmin, CWmax, and AIFSN corresponding to the service type of the service data block according to the preset correspondence between the data block type and the parameter set;

Step 407, the DH_TXOP CORE module sends the determined TXOP parameters corresponding to the service data block to the DH_TXOP DRIVER module;

Step 408, the DH_TXOP DRIVER module receives the TXOP parameter corresponding to the service data block;

Step 409, the DH_TXOP DRIVER module determines the first service message without source port information and the second service message with source port information among the set number of successfully sent historical service messages;

Step 410, the DH_TXOP DRIVER module determines that the ratio of the quantity of the first service message to the quantity of the second service message is between the first threshold and the second threshold, and then does not adjust the CWmin, CWmax and AIFSN;

Step 411, the DH_TXOP DRIVER module determines that the ratio of the quantity of the first service message to the quantity of the second service message is lower than the set first threshold, then increases the CWmin, CWmax and AIFSN of the service data block ;

Step 412, the DH_TXOP DRIVER module determines that the ratio of the quantity of the first service message to the quantity of the second service message is higher than the set second threshold, then reduces the CWmin, CWmax and AIFSN of the service data block ;

Step 413, the DH_TXOP DRIVER module sends the TXOP parameter of the service data block to the WIFI Driver through the NetLink interface or other interfaces;

Step 414, the WIFI Driver seizes the target channel according to the CWmin, CWmax and AIFSN of the service data block;

Step 415, based on the TXOP Limit, the WIFI Driver sends the service message included in the service data block through the preempted target channel.

In some embodiments, based on the same inventive concept, an embodiment of the present disclosure also provides a data transmission device, since the device is the device in the method in the embodiment of the present disclosure, and the problem-solving principle of the device is the same as that of the method Similar, therefore, the implementation of the device can refer to the implementation of the method, and the repetition will not be repeated.

As shown in Figure 5, the above-mentioned device includes the following modules:

The first determining module 501 is configured to determine the sending time based on the size of the service data block to be sent and the effective sending rate, wherein the effective sending rate is determined based on the actual sending rate and the set effective sending rate coefficient;

The second determining module 502 is configured to determine the TXOP Limit corresponding to the service data block according to the determined sending time and the set deviation coefficient;

A preemption module 503, configured to preempt the target channel according to the CWmin, CWmax and AIFSN of the service data block;

The sending module 504 is configured to send the service message included in the service data block through the preempted target channel based on the TXOP Limit.

As an optional implementation manner, before preempting the target channel according to the CWmin, CWmax and AIFSN of the service data block, the device further includes:

The third determination module is configured to determine the parameter set corresponding to the service type of the service data block according to the preset correspondence between the data block type and the parameter set, wherein the parameter set includes CWmin, CWmax, and part of AIFSN or all.

As an optional implementation manner, before preempting the target channel according to the CWmin, CWmax and AIFSN of the service data block, the device further includes:

The fourth determination module is used to determine the first service message without source port information and the second service message with source port information among the set number of successfully sent historical service messages;

An adjustment module, configured to adjust part or all of the CWmin, CWmax, and AIFSN of the service data block according to the ratio of the quantity of the first service message to the quantity of the second service message.

As an optional implementation manner, the adjustment module is configured to adjust the CWmin, CWmax, and Some or all of the AIFSN, including:

If the ratio of the number of the first service packets to the number of the second service packets is lower than a set first threshold, increasing some or all of the CWmin, CWmax, and AIFSN of the service data block;

If the ratio of the number of the first service packets to the number of the second service packets is higher than the set second threshold, reduce some or all of the CWmin, CWmax and AIFSN of the service data block;

Wherein, the first threshold is smaller than the second threshold.

As an optional implementation manner, the adjustment module is configured to increase part or all of the CWmin, CWmax, and AIFSN of the service data block, including:

increasing some or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding set first multiple; or

According to the correspondence between the preset difference range and the first multiple corresponding to each parameter in the parameter set, determine each of the parameter sets corresponding to the difference range where the first difference between the first threshold and the ratio is located. The first multiple corresponding to the parameter is to increase part or all of the CWmin, CWmax and AIFSN of the service data block according to the corresponding determined first multiple.

As an optional implementation manner, the adjustment module is configured to reduce part or all of the CWmin, CWmax and AIFSN of the service data block, including:

Reducing some or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding set second multiple; or

According to the correspondence between the preset difference range and the second multiple corresponding to each parameter in the parameter set, determine each of the parameter sets corresponding to the difference range where the second difference between the second threshold and the ratio is located. The second multiple corresponding to the parameter, reducing part or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding determined second multiple, wherein the first multiple corresponding to the same parameter is less than the second multiple.

In some embodiments, based on the same inventive concept, embodiments of the present disclosure also provide a data transmission device, which can implement the data transmission function discussed above, please refer to FIG. 6 , the device includes a processor 601 and a memory 602, wherein the memory 602 is used to store program instructions;

The processor 601 invokes the program instructions stored in the memory, and executes the program instructions to realize:

Determine the sending time based on the size of the service data block to be sent and the effective sending rate, wherein the effective sending rate is determined based on the actual sending rate and the set effective sending rate coefficient;

Determine the TXOPLimit corresponding to the service data block according to the determined sending time and the set deviation coefficient;

Seize the target channel according to the CWmin, CWmax and AIFSN of the service data block;

Based on the TXOP Limit, send the service packet included in the service data block through the preempted target channel.

As an optional implementation manner, before preempting the target channel according to the CWmin, CWmax and AIFSN of the service data block, the processor further executes:

Determine the parameter set corresponding to the service type of the service data block according to the preset correspondence between the data block type and the parameter set, where the parameter set includes part or all of CWmin, CWmax, and AIFSN.

As an optional implementation manner, before preempting the target channel according to the CWmin, CWmax and AIFSN of the service data block, the processor further executes:

Determine the first service message without source port information and the second service message with source port information among the set number of successfully sent historical service messages;

Adjust part or all of the CWmin, CWmax, and AIFSN of the service data block according to the ratio of the quantity of the first service packets to the quantity of the second service packets.

As an optional implementation manner, according to the ratio of the number of the first service message to the number of the second service message, adjusting part or all of the CWmin, CWmax and AIFSN of the service data block All, including:

If the ratio of the number of the first service packets to the number of the second service packets is lower than a set first threshold, increasing some or all of the CWmin, CWmax, and AIFSN of the service data block;

If the ratio of the number of the first service packets to the number of the second service packets is higher than the set second threshold, reduce some or all of the CWmin, CWmax and AIFSN of the service data block;

Wherein, the first threshold is smaller than the second threshold.

As an optional implementation manner, the adding part or all of the CWmin, CWmax and AIFSN of the service data block includes:

increasing some or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding set first multiple; or

According to the correspondence between the preset difference range and the first multiple corresponding to each parameter in the parameter set, determine each of the parameter sets corresponding to the difference range where the first difference between the first threshold and the ratio is located. The first multiple corresponding to the parameter is to increase part or all of the CWmin, CWmax and AIFSN of the service data block according to the corresponding determined first multiple.

As an optional implementation manner, the reducing part or all of the CWmin, CWmax and AIFSN of the service data block includes:

Reducing some or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding set second multiple; or

According to the correspondence between the preset difference range and the second multiple corresponding to each parameter in the parameter set, determine each of the parameter sets corresponding to the difference range where the second difference between the second threshold and the ratio is located. The second multiple corresponding to the parameter, reducing part or all of the CWmin, CWmax, and AIFSN of the service data block according to the corresponding determined second multiple, wherein the first multiple corresponding to the same parameter is less than the second multiple.

In some possible implementations, various aspects of the present disclosure can also be implemented in the form of a program product. As shown in FIG. 7 , the computer program product 70 includes computer program code. , so that the computer executes any one of the data transmission methods discussed above. Since the problem-solving principle of the above-mentioned computer program product is similar to the data transmission method, the implementation of the above-mentioned computer program product can refer to the implementation of the method, and the repetition will not be repeated.

Those skilled in the art should understand that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a A device for realizing the functions specified in one or more steps of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Other embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The specification and examples are to be considered exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A data transmission method, characterized in that the method comprises: Determine the sending time based on the size of the service data block to be sent and the effective sending rate, wherein the effective sending rate is determined based on the actual sending rate and the set effective sending rate coefficient; Determine the sending opportunity limit corresponding to the service data block according to the determined sending time and the set deviation coefficient; Seize the target channel according to the minimum contention window, the maximum contention window and the inter-arbitration frame interval of the service data block; Based on the sending opportunity limitation, send the service message included in the service data block through the preempted target channel. 2. The method according to claim 1, wherein, before preempting the target channel according to the minimum contention window, the maximum contention window and the arbitration inter-frame space of the service data block, further comprising: Determine the parameter set corresponding to the service type of the service data block according to the preset correspondence between the data block type and the parameter set, wherein the parameter set includes a minimum contention window, a maximum contention window, and a part or all. 3. The method according to claim 1 or 2, wherein, before preempting the target channel according to the minimum contention window, the maximum contention window and the arbitration inter-frame space of the service data block, further comprising: Determine the first service message without source port information and the second service message with source port information among the set number of successfully sent historical service messages; Adjusting part or all of the minimum contention window, the maximum contention window, and the inter-arbitration frame interval of the service data block according to the ratio of the number of the first service packets to the number of the second service packets. 4. The method according to claim 3, wherein the minimum contention window of the service data block is adjusted according to the ratio of the quantity of the first service message to the quantity of the second service message , some or all of the maximum contention window and the arbitration interframe space, including: If the ratio of the number of the first service packets to the number of the second service packets is lower than the set first threshold, increase the minimum contention window, maximum contention window, and arbitration frame interval of the service data block part or all of the interval; If the ratio of the number of the first service packets to the number of the second service packets is higher than the set second threshold, then reduce the minimum contention window, maximum contention window and arbitration frame interval of the service data block part or all of the interval; Wherein, the first threshold is smaller than the second threshold. 5. The method according to claim 4, wherein said increasing part or all of the minimum contention window, the maximum contention window and the inter-arbitration frame space of the service data block comprises: increasing part or all of the minimum contention window, the maximum contention window, and the inter-arbitration frame space of the service data block according to the corresponding set first multiple; or According to the correspondence between the preset difference range and the first multiple corresponding to each parameter in the parameter set, determine each of the parameter sets corresponding to the difference range where the first difference between the first threshold and the ratio is located. The first multiple corresponding to the parameter is to increase part or all of the minimum contention window, the maximum contention window, and the inter-arbitration frame space of the service data block according to the corresponding determined first multiple. 6. The method according to claim 4, wherein the reducing part or all of the minimum contention window, the maximum contention window and the inter-arbitration frame space of the service data block comprises: reducing part or all of the minimum contention window, the maximum contention window, and the inter-arbitration frame space of the service data block according to the corresponding set second multiple; or According to the correspondence between the preset difference range and the second multiple corresponding to each parameter in the parameter set, determine each of the parameter sets corresponding to the difference range where the second difference between the second threshold and the ratio is located. The second multiple corresponding to the parameter, reducing part or all of the minimum contention window, the maximum contention window, and the inter-arbitration frame interval of the service data block according to the corresponding determined second multiple, wherein the same parameter corresponds to The first multiple of is smaller than the second multiple. 7. A data transmission device, characterized in that the device comprises: The first determining module is configured to determine the sending time based on the size of the service data block to be sent and the effective sending rate, wherein the effective sending rate is determined based on the actual sending rate and the set effective sending rate coefficient; The second determining module is configured to determine the sending opportunity limit corresponding to the service data block according to the determined sending time and the set deviation coefficient; A preemption module, configured to preempt the target channel according to the minimum contention window, maximum contention window and arbitration inter-frame interval of the service data block; A sending module, configured to send the service message included in the service data block through the preempted target channel based on the sending opportunity restriction. 8. The device according to claim 7, wherein said device further comprises: The third determination module is configured to determine the parameter set corresponding to the service type of the service data block according to the preset correspondence between the data block type and the parameter set, wherein the parameter set includes the minimum contention window, the maximum contention window, and arbitration Part or all of the interframe space. 9. An electronic device, characterized in that it comprises: a processor; a memory for storing processor-executable instructions; wherein, the processor implements any one of claims 1 to 6 by running the executable instructions The steps of the method. 10. A computer readable and writable storage medium, on which computer instructions are stored, wherein the steps of the method according to any one of claims 1 to 6 are implemented when the instructions are executed by a processor.

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