CN109525374A

CN109525374A - Method, wireless access point, user equipment and the transmission device of data transmission

Info

Publication number: CN109525374A
Application number: CN201710858243.2A
Authority: CN
Inventors: 张波; 于方洲
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-09-20
Filing date: 2017-09-20
Publication date: 2019-03-26
Anticipated expiration: 2037-09-20
Also published as: CN109525374B

Abstract

The embodiment of the invention discloses method, wireless access point, user equipment and the transmission devices of a kind of transmission of data.This method comprises: wireless access point, by the BA frame for being wirelessly connected receiving terminal apparatus and sending between terminal device, BA frame is used to confirm the first data frame that terminal device has received wireless access point transmission；Wireless access point determines the information of the first TCP message according to BA frame；Wireless access point is according to information structuring the first TCP acknowledgment ACK message of the first TCP message, and for the first TCP ACK message for confirming that user equipment has received the first TCP message, user equipment is terminal device or the equipment communicated by terminal device with wireless access point；Wireless access point sends the first TCP ACK message to the network equipment.The embodiment of the present invention can be improved the performance of TCP transmission data.

Description

Method, wireless access point, user equipment and the transmission device of data transmission

Technical field

The present invention relates to method, wireless access point, user equipment that field of communication technology more particularly to a kind of data transmit And transmission device.

Background technique

With the continuous development of network technology, network has become the important component of people's life, especially in family In network, each terminal device (such as set-top box) passes through Wireless Fidelity (Wireless Fidelity, Wi-Fi) access network connection Carry out accessing network equipment (such as server) and is increasingly becoming mainstream.It can be controlled by transmission between terminal device and the network equipment Agreement (Transmission Control Protocol, TCP) processed carries out data transmission.Between terminal device and the network equipment Data transmitted by wireless access point, in data transmission procedure, the TCP that wireless access point sends the network equipment is reported Text is encapsulated in the data frame of medium access control (Media Access Control, MAC) layer and is sent to end by Wi-Fi End equipment.

In the prior art, number between terminal device and the network equipment can be guaranteed using the re-transmission affirmation mechanism of TCP layer Guarantee that data are transmitted between terminal device and wireless access point according to the reliability of transmission, and using the re-transmission affirmation mechanism of MAC layer Reliability.

In the re-transmission affirmation mechanism of TCP layer, terminal device is sent to server for confirming by wireless access point Receive TCP acknowledgment (Acknowledgement, ACK) message of TCP message.In the re-transmission affirmation mechanism of MAC layer, terminal Equipment is sent to wireless access point for confirming that the block for having received data frame confirms (Block ACK, BA) frame.Due to using two Layer retransmits affirmation mechanism, increases the quantity for transmitting data by Wi-Fi, exacerbates the competition of channel, reduce TCP transmission number According to performance.

Summary of the invention

This application provides the method, apparatus and storage medium of a kind of transmission of data, can be improved the property of TCP transmission data Energy.

In a first aspect, this application provides a kind of methods of data transmission, comprising:

Wireless access point is used for by the BA frame for being wirelessly connected receiving terminal apparatus and sending between terminal device, BA frame Confirmation terminal device has received the first data frame of wireless access point transmission, encapsulates the first TCP message in the first data frame；

Wireless access point determines the information of the first TCP message according to BA frame；

Information structuring first TCP ACK message of the wireless access point according to the first TCP message, the first TCP ACK message use The first TCP message is had received in confirmation user equipment, user equipment is terminal device or passes through terminal device and wireless access The equipment of point communication；

Wireless access point sends the first TCP ACK message to the network equipment, and the network equipment is to send setting for the first TCP message It is standby.

In the application, wireless access point, can be with after receiving for confirming that terminal device has received the BA frame of data frame According to the information for the TCP message that BA frame is determined to encapsulate in data frame, and then can construct for confirming that user equipment has connect The TCP ACK message of TCP message is received, and the TCP ACK message of construction is sent to the network equipment.Such wireless access point can Constructed after receiving BA frame for confirming that user equipment has received the TCP ACK message of TCP message, and it is sent to network Equipment, so terminal device does not need to be sent to it TCP ACK message after sending BA frame, wireless access point can also be constructed TCP ACK message is sent to the network equipment, to complete to retransmit affirmation mechanism, reduce by wireless access point and terminal device it Between be wirelessly connected the quantity of transmission data, and then improve the performance of TCP transmission data.

With reference to first aspect, in the first possible embodiment of first aspect, the first TCP ACK message includes the One receives window value, and the first reception window value is that wireless access point stores or obtaining from BA frame, the first reception window Value is for indicating that the TCP of user equipment receives the size of window.

With reference to first aspect or any possible embodiment of first aspect, second in first aspect are possible In embodiment, before wireless access point is according to the first TCP ACK message of information structuring of the first TCP message, further includes:

Wireless access point judges whether BA frame includes receiving window value；

When BA frame includes receiving window value, wireless access point determines that the first reception window value is the reception window in BA frame Value；

When BA frame does not include receiving window value, wireless access point determines the first reception window value for wireless access point storage Reception window value, wireless access point storage reception window value be wireless access point received another BA before receiving BA frame It is obtained in frame, another BA frame is what terminal device was sent.

With reference to first aspect or any possible embodiment of first aspect, the third in first aspect are possible In embodiment, further includes:

When BA frame includes receiving window value, the reception window value that wireless access point stores is updated to BA by wireless access point Reception window value in frame.

With reference to first aspect or any possible embodiment of first aspect, the 4th kind in first aspect are possible In embodiment, wireless access point is determined according to BA frame before the information of the first TCP message, further includes:

Wireless access point stores the letter of the packaged TCP message into the serial number for the data frame that terminal device is sent and data frame Corresponding relationship between breath；

Wireless access point determines the information of the first TCP message according to BA frame, comprising:

Wireless access point obtains the first serial number, the serial number for the data frame that the first serial number BA frame is confirmed according to BA frame；

Wireless access point determines the information of the first TCP message according to the first serial number and corresponding relationship.

Second aspect, this application provides a kind of methods of data transmission, comprising:

User equipment encapsulates first by what the wireless connection reception wireless access point between wireless access point was sent First data frame of TCP message；

User equipment sends the BA frame for receiving window value including first by being wirelessly connected to wireless access point, and BA frame is used for It indicates that user equipment has received the first data frame, wireless access point construction is made to include the first reception window value and use for confirming Family equipment has received the first TCP ACK message of the first TCP message, and the first reception window value is for indicating user equipment The size of TCP reception window.

In the application, user equipment is by being wirelessly connected the number for encapsulating TCP message for receiving wireless access point and sending After frame, sending to wireless access point includes the BA frame for receiving window value, constructs wireless access point including the first reception window Mouthful value and for confirming that user equipment has received the TCP ACK message of TCP message, such user equipment pass through BA frame to wireless Access point sends the reception window value of user equipment, so as to so that wireless access point is constructed for confirming that user equipment has connect The TCP ACK message for receiving TCP message sends TCP ACK message to wireless access point without user equipment, reduces logical The quantity for being wirelessly connected transmission data is crossed, the performance of TCP transmission data is improved.

In conjunction with second aspect, in the first possible embodiment of second aspect, user equipment by with it is wireless Encapsulate the first transmission control protocol TCP message first for receiving wireless access point transmission between access point Before data frame, further includes:

User equipment is by being wirelessly connected the second data for encapsulating the second TCP message for receiving wireless access point and sending When frame, obtains first and receive window value.

In conjunction with the possible embodiment of the first of second aspect or second aspect, second in second aspect is possible In embodiment, user equipment includes MAC module and TCP module；

User equipment is by being wirelessly connected the second data for encapsulating the second TCP message for receiving wireless access point and sending When frame, obtains first and receives window value, comprising:

MAC module is by being wirelessly connected the second data for encapsulating the second TCP message for receiving wireless access point and sending When frame, the second TCP message is sent to TCP module；

MAC module receives the 2nd TCP ACK message that TCP module is sent, and the 2nd TCP ACK message includes the first reception window Mouth value, the 2nd TCP ACK message is for indicating that TCP module has received the second TCP message；

User equipment encapsulates first by what the wireless connection reception wireless access point between wireless access point was sent First data frame of transmission control protocol TCP message, comprising:

MAC module receives the first data frame by being wirelessly connected；

User equipment includes that the first block for receiving window value confirms BA frame, packet to wireless access point transmission by being wirelessly connected It includes:

MAC module sends the BA frame for receiving window value including first by being wirelessly connected to wireless access point.

In conjunction with the possible embodiment of the first of second aspect or second aspect, the third in second aspect is possible In embodiment, MAC module receives the 2nd TCP ACK message that TCP module is sent, comprising:

MAC module judge first reception window value and MAC module store second reception window value it is whether identical；

When first receives window value and the second reception window value is not identical, MAC module receives window value for second and updates Window value is received for first.

In conjunction with the possible embodiment of the first of second aspect or second aspect, the 4th kind in second aspect is possible In embodiment, MAC module sends the BA frame for receiving window value including first by being wirelessly connected to wireless access point, comprising:

MAC module judges whether MAC module has updated the reception window value of MAC module storage, mesh in the target time period BA frame and the period between current time once are sent to wireless access point before marking period expression MAC module；

When have updated in the target time period MAC module storage reception window value when, MAC module by be wirelessly connected to It includes the first BA frame for receiving window value that wireless access point, which is sent,.

In conjunction with the possible embodiment of the first of second aspect or second aspect, the 5th kind in second aspect is possible In embodiment, after MAC module is by being wirelessly connected the first data frame of reception, further includes:

MAC module caches the first TCP message；

MAC module sends the first TCP message to TCP module.

In conjunction with the possible embodiment of the first of second aspect or second aspect, the 6th kind in second aspect is possible In embodiment, after MAC module sends the first TCP message to TCP module, further includes:

When receiving preset number duplicate acknowledgment (Duplicate ACK, DACK) message of TCP module transmission, MAC Module transmits the first TCP message to TCP module again.

In conjunction with the possible embodiment of the first of second aspect or second aspect, the 7th kind in second aspect is possible In embodiment, after MAC module sends the first TCP message to TCP module, further includes:

When not receiving the target TCP ACK message of TCP module transmission within a preset period of time, MAC module is to TCP module The first TCP message is transmitted again, and target TCP ACK message indicates that TCP module has received the first TCP message.

In conjunction with the possible embodiment of the first of second aspect or second aspect, the 8th kind in second aspect is possible In embodiment, further includes:

When receiving the target TCP ACK message of TCP module transmission, MAC module deletes the first TCP message of caching, Target ACK message indicates that TCP module has received the first TCP message.

The third aspect, this application provides a kind of methods of data transmission, comprising:

Transmission device receives the first data for encapsulating the first TCP message by the wireless connection between wireless access point Frame, the first TCP message are what the network equipment was sent to user equipment；

Transmission device sends the BA frame for receiving window value including first by being wirelessly connected to wireless access point, and BA frame is used for Confirmation transmission device has received the first data frame, and wireless access point construction is made to include the first reception window value and use for confirming Family equipment has received the first TCP ACK message of the first TCP message, and the first reception window value is for indicating user equipment The size of TCP reception window；

Transmission device sends the first TCP message to user equipment by the wired connection between user equipment.

In the application, transmission device is by being wirelessly connected the number for encapsulating TCP message for receiving wireless access point and sending After frame, sending to wireless access point includes the BA frame for receiving window value, constructs wireless access point including the first reception window Mouthful value and for confirming that user equipment has received the TCP ACK message of TCP message, such transmission device pass through BA frame to wireless Access point sends the reception window value of user equipment, so as to so that wireless access point oneself is constructed for confirming user equipment The TCP ACK message for having received TCP message sends TCP ACK message to wireless access point without user equipment, reduces By being wirelessly connected the quantity of transmission data, the performance of TCP transmission data is improved.

In conjunction with the third aspect, in the first possible embodiment of the third aspect, transmission device by with it is wireless Wireless connection between access point receives before the first data frame for encapsulating the first transmission control protocol TCP message, further includes:

Transmission device passes through wired company when encapsulating the second data frame of the second TCP message by being wirelessly connected reception It connects to user equipment and sends the second TCP message；

Transmission device receives the 2nd TCP ACK message that user equipment is sent by wired connection, the 2nd TCP ACK message Window value is received including first, the 2nd TCP ACK message is for indicating that user equipment has received the second TCP message.

It is possible in conjunction with the third aspect or any possible embodiment of the third aspect, second in the third aspect In embodiment, transmission device is received after the 2nd TCP ACK message that user equipment is sent by wired connection, further includes:

Transmission device judge first reception window value and transmission device store second reception window value it is whether identical；

When first receives window value and the second reception window value is not identical, transmission device receives window value for second and updates Window value is received for first.

It is possible in conjunction with the third aspect or any possible embodiment of the third aspect, the third in the third aspect In embodiment, transmission device includes that the first block for receiving window value confirms BA to wireless access point transmission by being wirelessly connected Frame, comprising:

Transmission device judges whether transmission device has updated the reception window value of transmission device storage in the target time period, Target time section once sends BA frame and the period between current time to wireless access point before indicating transmission device；

When having updated the reception window value of transmission device storage in the target time period, transmission device passes through wireless connection Sending to wireless access point includes the first BA frame for receiving window value.

In conjunction with the third aspect or any possible embodiment of the third aspect, the 4th kind in the third aspect is possible In embodiment, after transmission device is by being wirelessly connected the first data frame of reception, further includes:

Transmission device caches the first TCP message.

In conjunction with the third aspect or any possible embodiment of the third aspect, the 5th kind in the third aspect is possible In embodiment, transmission device by the wired connection between user equipment to user equipment send the first TCP message it Afterwards, further includes:

When receiving the preset number DACK message of user equipment transmission, transmission device passes through wired connection to user Equipment transmits the first TCP message again.

In conjunction with the third aspect or any possible embodiment of the third aspect, the 6th kind in the third aspect is possible In embodiment, transmission device by the wired connection between user equipment to user equipment send the first TCP message it Afterwards, further includes:

When not receiving the target TCP ACK message of user equipment transmission within a preset period of time, transmission device is by having Line connects and transmits the first TCP message again to user equipment, and target TCP ACK message indicates that user equipment has received first TCP message.

In conjunction with the third aspect or any possible embodiment of the third aspect, the 7th kind in the third aspect is possible In embodiment, further includes:

When receiving the target TCP ACK message of user equipment transmission, transmission device deletes the first TCP report of caching Text, target ACK message indicate that TCP module has received the first TCP message.

Fourth aspect, this application provides a kind of wireless access point, comprising:

Receiving unit, for passing through the BA frame for being wirelessly connected receiving terminal apparatus and sending between terminal device, BA frame For confirming that terminal device has received the first data frame of wireless access point transmission, the first TCP is encapsulated in the first data frame Message；

Determination unit, for determining the information of the first TCP message according to BA frame；

Structural unit, for the first TCPACK message of information structuring according to the first TCP message, the first TCP ACK message For confirming that user equipment has received the first TCP message, user equipment be terminal device or by terminal device with wirelessly connect The equipment of access point communication；

Transmission unit, for sending the first TCP ACK message to the network equipment, the network equipment is to send the first TCP message Equipment.

In conjunction with fourth aspect, in the first possible embodiment of fourth aspect, the first TCP ACK message includes the One receives window value, and the first reception window value is that wireless access point stores or obtaining from BA frame, the first reception window Value is for indicating that the TCP of user equipment receives the size of window.

In conjunction with the possible embodiment of the first of fourth aspect or fourth aspect, second in fourth aspect is possible In embodiment, further includes:

Judging unit, for judging whether BA frame includes receiving window value；

Determination unit is also used to determine that the first reception window value is the reception in BA frame when BA frame includes receiving window value Window value；

Determination unit is also used to determine that the first reception window value is wireless access point when BA frame does not include receiving window value The reception window value of storage, the reception window value of wireless access point storage are that wireless access point is received another before receiving BA frame It is obtained in one BA frame, another BA frame is what terminal device was sent.

In conjunction with the possible embodiment of the first of fourth aspect or fourth aspect, the third in fourth aspect is possible In embodiment, further includes:

Updating unit, for when BA frame includes receiving window value, the reception window value of wireless access point storage to be updated For the reception window value in BA frame.

In conjunction with the possible embodiment of the first of fourth aspect or fourth aspect, the 4th kind in fourth aspect is possible In embodiment, further includes:

Storage unit, for storing the packaged TCP message into the serial number of the data frame of terminal device transmission and data frame Information between corresponding relationship；

Determination unit is specifically used for when determining the information of the first TCP message according to BA frame:

The first serial number, the serial number for the data frame that the first serial number BA frame is confirmed are obtained according to BA frame；

The information of the first TCP message is determined according to the first serial number and corresponding relationship.

5th aspect, this application provides a kind of user equipmenies, comprising:

First receiving unit, for receiving the envelope that wireless access point is sent by the wireless connection between wireless access point The first data frame of the first TCP message is filled；

First transmission unit, for sending the BA for receiving window value including first by being wirelessly connected to wireless access point Frame, for BA frame for indicating that user equipment has received the first data frame, making wireless access point construction includes the first reception window value And for confirming that user equipment has received the first TCP ACK message of the first TCP message, the first reception window value is for indicating The TCP of user equipment receives the size of window.

In conjunction with the 5th aspect, in the first possible embodiment of the 5th aspect, further includes:

Processing unit, for encapsulating second by what wireless connection reception wireless access point was sent in the first receiving unit When the second data frame of TCP message, obtains first and receive window value.

In conjunction with the 5th aspect or the first possible embodiment of the 5th aspect, second at the 5th aspect is possible In embodiment, user equipment includes MAC module and TCP module；MAC module include the first receiving unit, the first transmission unit, Processing unit, the second receiving unit and the first transmission unit；

Processing unit is specifically used for receiving encapsulating for wireless access point transmission by being wirelessly connected in the first receiving unit When the second data frame of the second TCP message, the second TCP message is sent to TCP module by the second transmission unit；And it is used for The 2nd TCP ACK message that TCP module is sent is received by the second receiving unit, the 2nd TCP ACK message includes the first reception Window value, the 2nd TCP ACK message is for indicating that TCP module has received the second TCP message.

In conjunction with the 5th aspect or the first possible embodiment of the 5th aspect, the third at the 5th aspect is possible In embodiment, processing unit is also used to judge whether the second of the first reception window value and MAC module storage receive window value It is identical；And for when first receives window value and the second reception window value is not identical, the second reception window value to be updated to First receives window value.

In conjunction with the 5th aspect or the first possible embodiment of the 5th aspect, the 4th kind at the 5th aspect is possible In embodiment, processing unit is also used to judge whether MAC module has updated the reception of MAC module storage in the target time period Window value, target time section once send BA frame and the period between current time to wireless access point before indicating MAC module；

First transmission unit is specifically used for when having updated the reception window value of MAC module storage in the target time period, The BA frame for receiving window value including first is sent by being wirelessly connected to wireless access point.

In conjunction with the 5th aspect or the first possible embodiment of the 5th aspect, the 5th kind at the 5th aspect is possible In embodiment, processing unit is also used to cache the first TCP message；And for being sent out by the second transmission unit to TCP module Send the first TCP message.

In conjunction with the 5th aspect or the first possible embodiment of the 5th aspect, the 6th kind at the 5th aspect is possible In embodiment, processing unit is also used to when the preset number repetition for receiving TCP module transmission by the second receiving unit When confirming DACK message, the first TCP message is transmitted to TCP module by the second transmission unit again.

In conjunction with the 5th aspect or the first possible embodiment of the 5th aspect, the 7th kind at the 5th aspect is possible In embodiment, processing unit is also used to not receive TCP module by second receiving unit within a preset period of time When the target TCP ACK message of transmission, the first TCP message, target TCP are transmitted to TCP module by the second transmission unit again ACK message indicates that TCP module has received the first TCP message.

In conjunction with the 5th aspect or the first possible embodiment of the 5th aspect, the 8th kind at the 5th aspect is possible In embodiment, processing unit is used for when the target TCP ACK message for receiving TCP module transmission by the second receiving unit When, the first TCP message of caching is deleted, target ACK message indicates that TCP module has received the first TCP message.

6th aspect, this application provides a kind of transmission devices, comprising:

First receiving unit, for encapsulating the first TCP message by the wireless connection reception between wireless access point The first data frame, the first TCP message is that the network equipment is sent to user equipment；

First transmission unit, for sending the BA for receiving window value including first by being wirelessly connected to wireless access point Frame, for BA frame for confirming that transmission device has received the first data frame, making wireless access point construction includes the first reception window value And for confirming that user equipment has received the first TCP ACK message of the first TCP message, the first reception window value is for indicating The TCP of user equipment receives the size of window；

Second transmission unit, for sending the first TCP report to user equipment by the wired connection between user equipment Text.

In conjunction with the 6th aspect, in the first possible embodiment of the 6th aspect, the second transmission unit is also used to When receiving unit encapsulates the second data frame of the second TCP message by being wirelessly connected reception, set by wired connection to user Preparation send the second TCP message；

Transmission device further include:

Second receiving unit, the 2nd TCP ACK message sent for receiving user equipment by wired connection, second TCP ACK message includes the first reception window value, and the 2nd TCP ACK message is for indicating that user equipment has received the 2nd TCP Message.

In conjunction with the 6th aspect or the first possible embodiment of the 6th aspect, second at the 6th aspect is possible In embodiment, further includes:

First judging unit, for judging whether the second of the first reception window value and transmission device storage receive window value It is identical；

Updating unit, for receiving window for second when first receives window value and the second reception window value is not identical Value is updated to the first reception window value.

In conjunction with the 6th aspect or the first possible embodiment of the 6th aspect, the third at the 6th aspect is possible In embodiment, further includes:

Second judgment unit, for judging whether transmission device has updated connecing for transmission device storage in the target time period Window value is received, target time section once sends BA frame and the time between current time to wireless access point before indicating transmission device Section；

First transmission unit is specifically used for when having updated the reception window value of transmission device storage in the target time period, The BA frame for receiving window value including first is sent by being wirelessly connected to wireless access point.

In conjunction with the 6th aspect or the first possible embodiment of the 6th aspect, the 4th kind at the 6th aspect is possible In embodiment, further includes:

Cache unit, for caching the first TCP message.

In conjunction with the 6th aspect or the first possible embodiment of the 6th aspect, the 5th kind at the 6th aspect is possible In embodiment, the second transmission unit is also used to receive the preset number DACK of user equipment transmission when the second receiving unit When message, the first TCP message is transmitted to user equipment by wired connection again.

In conjunction with the 6th aspect or the first possible embodiment of the 6th aspect, the 6th kind at the 6th aspect is possible In embodiment, the second transmission unit is also used to not receive user equipment transmission within a preset period of time when the second receiving unit When target TCP ACK message, the first TCP message, target TCP ACK message table are transmitted to user equipment by wired connection again Show that user equipment has received the first TCP message.

In conjunction with the 6th aspect or the first possible embodiment of the 6th aspect, the 7th kind at the 6th aspect is possible In embodiment, further includes:

Unit being deleted, when for receiving the target TCP ACK message of user equipment transmission when the second receiving unit, being deleted First TCP message of caching, target ACK message indicate that TCP module has received the first TCP message.

7th aspect, the embodiment of the present invention provide a kind of wireless access point, comprising:

Memory, processor, communication interface and bus；

Memory, processor and communication interface are connected by bus and complete mutual communication；

Memory is for storing program code；

Processor is corresponding with executable program code to run by reading the executable program code stored in memory Program, for executing method as described in relation to the first aspect.

Eighth aspect, the embodiment of the present invention provide a kind of user equipment, comprising:

Memory, processor, communication interface and bus；

Memory is for storing program code；

Processor is corresponding with executable program code to run by reading the executable program code stored in memory Program, for executing the method as described in second aspect.

9th aspect, the embodiment of the present invention provide a kind of transmission device, comprising:

Memory, processor, communication interface and bus；

Memory is for storing program code；

Processor is corresponding with executable program code to run by reading the executable program code stored in memory Program, for executing the method as described in the third aspect.

Tenth aspect, the embodiment of the present invention provides a kind of system of data processing, including wireless as described in fourth aspect Access point and the user equipment as described in terms of the 5th.

Tenth on the one hand, and the embodiment of the present invention provides a kind of system of data processing, including the nothing as described in fourth aspect Line access point and the transmission device as described in terms of the 6th.

12nd aspect, the embodiment of the present invention provide a kind of computer readable storage medium, computer readable storage medium In be stored with instruction, when run on a computer so that computer execute first aspect described in method.

13rd aspect, the embodiment of the present invention provide a kind of computer readable storage medium, computer readable storage medium In be stored with instruction, when run on a computer so that computer execute second aspect described in method.

Fourteenth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, computer readable storage medium In be stored with instruction, when run on a computer so that computer execute the third aspect described in method.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention Attached drawing is briefly described.

Fig. 1 is a kind of network architecture schematic diagram provided according to embodiments of the present invention；

Fig. 2 is another network architecture schematic diagram provided according to embodiments of the present invention；

Fig. 3 is the schematic flow chart of the method for the data transmission that an embodiment provides according to the present invention；

Fig. 4 is the schematic flow chart of the method for the data transmission that another embodiment provides according to the present invention；

Fig. 5 is the schematic block diagram of the wireless access point provided according to one embodiment of the invention；

Fig. 6 is the schematic block diagram of the wireless access point provided according to the present invention another or multiple embodiments；

Fig. 7 is the schematic block diagram of the user equipment provided according to one embodiment of the invention；

Fig. 8 is the schematic block diagram of the user equipment provided according to the present invention another or multiple embodiments；

Fig. 9 is the schematic block diagram for the transmission device that an embodiment provides according to the present invention；

Figure 10 is the schematic block diagram of the transmission device of another or the offer of multiple embodiments according to the present invention；

According to Figure 11 another embodiment of the present invention provides wireless access point schematic block diagram；

Figure 12 is the schematic block diagram for the user equipment that another embodiment provides according to the present invention；

Figure 13 is the schematic block diagram for the transmission device that another embodiment provides according to the present invention.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.In the absence of conflict, this Shen Please in embodiment and embodiment in feature can be combined with each other.

The embodiment of the present invention is suitable for the scene carried out data transmission in the wireless network by Transmission Control Protocol.Such as Fig. 1 institute Show, a kind of network architecture schematic diagram being applicable in for the embodiment of the present invention.In Fig. 1, the network equipment be user equipment in network The equipment of service is provided, server etc. is specifically as follows；Wireless access point is network intermediary device, usually simultaneously comprising wired Network interface and radio network interface can establish such as Wi-Fi wireless network by radio network interface and user equipment and connect It connects, so as to connect subscriber equipment in network, meanwhile, wireless access point can also pass through wired network interface and network Equipment establishes wired connection, so that the network equipment be allow to provide service, wireless access by wireless access point for user equipment Point can be specifically home gateway (Home Gate Way, Home GW) etc.；User equipment may include set-top box, hand The equipment such as machine, computer are connect by wireless networks such as such as Wi-Fi with wireless access point, and can by wireless access point with The network equipment establishes connection, such as TCP connection, to can carry out data transmission between user equipment and the network equipment.Such as Fig. 2 Another network architecture schematic diagram shown, be applicable in for the embodiment of the present invention.The network equipment and network equipment phase in Fig. 1 in Fig. 2 Together, wireless access point is identical as wireless access point in Fig. 1 in Fig. 2, and details may refer to describe in Fig. 1；As shown in Fig. 2, user It can also be not directly connected between equipment and wireless access point, but be attached by transmission device.In Fig. 2, transmission is set It is standby that wireless network connection is established between wireless access point, and wired connection is established between user equipment, so user equipment By between transmission device and wireless access point and the network equipment establish such as TCP connection data connection, so as to network Carry out data transmission between equipment, transmission device specifically can be access point (Access Point, AP).For in Fig. 1 with nothing The transmission device connecting in the user equipment and Fig. 2 of the connection of line access point with wireless access point can be commonly referred to as terminal device.

It should be noted that receiving end can be passed through according to Transmission Control Protocol transmitting terminal when transmitting data by Transmission Control Protocol TCP receives the size of window to control the size of transmitting data stream, receives window value and illustrates that TCP receives the size of window.TCP The size usually real-time change with the factors such as packet drop, receiving end caching in data transmission procedure of window is received, so Receiving end can receive in real time window value in addition receiving end in the TCP ACK message for returning to transmitting terminal, so as to so as to send End can adjust the data flow of transmission according to the reception window value of receiving end.So in the network architecture shown in Fig. 1 and Fig. 2, The network equipment sends TCP message to the user equipment as receiving end as transmitting terminal, and user equipment is sent to the network equipment User equipment current reception window value can be carried when TCP ACK message.

One embodiment of the invention provides a kind of method of data transmission, is used in the network architecture shown in FIG. 1, such as Fig. 3 Shown, this approach includes the following steps.

101, TCP connection is established between the network equipment and user equipment.

TCP connection is established by wireless access point between the network equipment and user equipment, in order to lead between the two Cross the TCP connection communication established.

During carrying out data transmission between the network equipment and user equipment, the network equipment sends TCP report to user equipment Text, user equipment can reply the corresponding TCP ACK message of TCP message, TCP after the TCP message for receiving network equipment transmission ACK message is for confirming that user equipment has received the corresponding TCP message of TCP ACK message.User equipment sends TCP message pair The TCP ACK message answered, in order to notify the network equipment its TCP message has been received.The network equipment is by receiving TCP message Corresponding TCP ACK message, to confirm that TCP message has been received in user equipment.If network equipment confirmation user equipment does not have The TCP message is received, then can retransmit the TCP message.

102, the network equipment sends the first TCP message to wireless access point.

First TCP message is what the network equipment was sent to user equipment.By wireless between the network equipment and user equipment After access point establishes TCP connection, it can be carried out data transmission by wireless access point and user equipment.The network equipment passes through network Wired connection between equipment and wireless access point, the first TCP message that will be sent to user equipment are sent to wireless access Point is transferred to user equipment by wireless access point.

103, after the first TCP message is encapsulated as the first data frame by wireless access point, the first data frame is sent to user Equipment.

After wireless access point receives the first TCP message that the network equipment is sent, need to be encapsulated for after the first data frame It is transmitted again.The first TCP message is encapsulated in first data frame, wireless access point sends the first data frame after completing encapsulation To user equipment.

Add it should be noted that TCP message is encapsulated as data frame in the embodiment of the present invention and is referred to for the TCP message Add the WLAN head (Wireless Local Area Network, WLAN) to generate the data for including the TCP message Frame.

It should be noted that wireless access point after encapsulating the first TCP message, can store the first data frame information and Corresponding relationship between the information of first TCP message, in order to which subsequent wireless access point is looked into according to the information of the first data frame The information of the first TCP message is looked for, and constructs the TCP ACK report of corresponding first TCP message according to the information of the first TCP message Text.When establishing TCP connection between the network equipment and user equipment, wireless access point can also be by passing in connection establishment process Defeated data obtain the relevant information of TCP connection, for example, the five-tuple information of TCP connection, in order to construct TCP ACK report Text.The information of first TCP message may include the serial number of the first TCP message, message length of the first TCP message etc., the first number Information according to frame includes the serial number of the first data frame.

104, after user equipment receives the first data frame, sending to wireless access point includes the first BA for receiving window value Frame.

BA frame is for indicating that user equipment has received the first data frame.Pass through nothing between user equipment and wireless access point Gauze network transmitting data frame, after wireless access point sends data frame to user equipment by wireless network, user equipment can lead to It crosses wireless network and returns to BA frame to wireless access point, wireless access point, which receives BA frame, can be confirmed that user equipment has been received Data frame.

After received first data frame of user equipment, parsing you can get it the first TCP message is carried out to the first data frame, i.e., User equipment receives the first TCP message, it is generally the case that user equipment is needed through wireless access point to the network equipment at this time The first TCP ACK message of corresponding first TCP message is sent, and adds in the first TCP ACK message user equipment at this time First receives window value.In the embodiment of the present invention, in order to reduce the data transmitted between wireless access point and user equipment, user After equipment sends BA frame to wireless access point, wireless access point can be constructed for confirming that user equipment has received first First TCP ACK message of TCP message is simultaneously sent to the network equipment, sends the to wireless access point without user equipment One TCP ACK message.But the network equipment needs to determine the reception window value of user equipment, institute by the first TCP ACK message The first of user equipment when sending BA frame to wireless access point, can be added in BA frame with user equipment receives window value, First reception window value of user equipment is sent to wireless access point, wireless access point can be in construction first after receiving BA frame When TCP ACK message, the first reception window value in BA frame is added in the first TCP ACK message, and then make the network equipment It can determine that the first of user equipment receives window value according to the first TCP ACK message.

Field length due to receiving window value only has 2 bytes, and being added in BA frame can't be to the transmission of BA frame Very big influence is brought, so can be in the case where having substantially no effect on the transmission of BA frame in the embodiment of the present invention, reduction passes through Wi- Fi transmits the quantity of data, improves the performance of TCP transmission data.

As a kind of optional embodiment of the embodiment of the present invention, user equipment is before receiving the first data frame, also It can obtain first when by being wirelessly connected the second data frame for receiving wireless access point transmission and receive window value.

The second TCP message is encapsulated in second data frame.User equipment has got user when receiving the second data frame The first of equipment receives window value, then the first reception window value can be sent to wireless access point by BA frame in this step.

It should be noted that user equipment get every time receive window value when, not necessarily at once to wirelessly connecing Access point sends BA frame and sends so the reception window value that user equipment can will acquire first is stored when to wireless access point Pass through BA frame when BA frame again and is sent to wireless access point for window value is received.

In addition, can be obtained in user equipment in the embodiment of the present invention in order to further ensure the stability of BA frame transmission Reception window value when changing, then sending to wireless access point includes receiving the BA frame of window value, and obtain in user equipment When the reception window value taken does not change, sending not to wireless access point includes the BA frame for receiving window value, so as to drop The low influence to the transmission of BA frame.

Specifically, user equipment can be when getting the first reception window value, it can be determined that the first reception window of acquisition Whether mouth value is identical as the reception window value of storage.If the first reception window value and the reception window value of storage be not identical, say The reception window value of bright user equipment is changed, then can send to wireless access point includes the BA frame for receiving window value； If the first reception window value is identical as the reception window value of storage, illustrate that the reception window value of user equipment does not change, Can then send not to wireless access point includes the BA frame for receiving window value.

105, after wireless access point receives BA frame, the information of the first TCP message is determined according to BA frame.

After wireless access point receives BA frame, it can be confirmed that user equipment has been received by the first data frame, sealed in the first data frame The first TCP message is filled, it is possible to confirm that user equipment also has received the first TCP message.Wireless access point can basis BA frame determines the information of the first TCP message, has received the first of the first TCP message in order to be configured to confirmation user equipment TCP ACK message.

Specifically, in step 103, wireless access point can store the sequence of the first data frame sent to user equipment Number, the corresponding relationship between the serial number of the information of the first TCP message and the first data frame and the information of the first TCP message.This In step, serial number of the wireless access point according to available the confirmed data frame of BA frame out of the information in BA frame, i.e. the first data The serial number of frame, and then first be encapsulated in the first data frame can determine that according to the serial number of the first data frame and corresponding relationship The information of TCP message.

106, wireless access point is according to the first TCP ACK message of information structuring of the first TCP message.

First TCP ACK message is for confirming that user equipment has received the first TCP message.Wireless access point can basis The first TCP ACK message of information structuring of first TCP message is sent without user equipment, reduces transmission in wireless network Data volume.

Its reception window value, its reception of the Lai Tongzhi network equipment are carried since user equipment usually passes through TCP ACK message Window value, so wireless access point when constructing the first TCP ACK message, can also add use in the first TCP ACK message The reception window value of family equipment, i.e., first in BA frame receives window value.

As a kind of optional embodiment of the embodiment of the present invention, user equipment can change receiving window value When just pass through BA frame send variation after reception window value, so wireless access point can for the first time receive include receive window value BA frame when, by receive window value store.It is subsequent receive again construct TCP ACK message after BA frame when, judge BA It whether include receiving window value in frame.If including receiving window value in BA frame, illustrate the reception window of user equipment Value changes, and needs to construct TCP ACK message according to the reception window value for including in BA frame at this time；If not including in BA frame Window value is received, then illustrates that the reception window value of user equipment does not change, needs to be stored according to wireless access point at this time It receives window value and constructs TCP ACK message.It meanwhile including that when receiving window value, wireless access point is stored in BA frame It receives window value and is updated to the reception window value in BA frame included, to guarantee the standard of the reception window value stored in wireless access point True property.

Specifically, wireless access point can be after receiving BA frame in this step, it can be determined that whether BA frame includes first Receive window value.If BA frame includes the first reception window value, first is added in the first TCP ACK message and receives window Value, and the reception window value that wireless access point stores is updated to the in BA frame include first reception window value；If BA frame is not Window value is received including first, then adds the reception window value of wireless access point storage in the first TCP ACK message.

It should be noted that the reception window value of wireless access point storage is wireless access point from received user It is obtained in the BA frame that equipment is sent.

107, wireless access point sends the first TCP ACK message of construction to the network equipment.

After wireless access point constructs the first TCP ACK message, the first TCP ACK message of construction is sent to network and is set It is standby, in order to which the network equipment can be confirmed that user equipment has been received that the first TCP message.And in the first TCP ACK message When reception window value including user equipment, the reception window value of user equipment is determined according to the first TCP ACK message.

In the embodiment of the present invention, user equipment is reported by being wirelessly connected the TCP that encapsulates that reception wireless access point is sent After the data frame of text, sending to wireless access point includes the BA frame for receiving window value, and wireless access point is being received for confirming end After end equipment has received the BA frame of data frame, the information of the TCP message encapsulated in data frame can be determined according to BA frame, into And it can construct for confirming that user equipment has received the TCP ACK message of TCP message, and will construct and be used to confirm use The TCP ACK message that family equipment has received TCP message is sent to the network equipment.Such wireless access point can receive BA frame It is constructed afterwards for confirming that user equipment has received the TCP ACK message of TCP message, and is sent to the network equipment, so with Family equipment does not need to be sent to it TCP ACK message after sending BA frame, and wireless access point can also construct TCP ACK message hair The network equipment is given, to complete to retransmit affirmation mechanism, reduces and is passed by being wirelessly connected between wireless access point and user equipment The quantity of transmission of data, and then improve the performance of TCP transmission data.

According to TCP/ IP(Internet Protocol) (Internet Protocol, IP) agreement stack mechanism, equipment can be divided into different Network structure, such as 5 layer network structures are divided into, including application layer, TCP layer, IP layers, MAC layer and physical layer.Wherein, it applies Layer, TCP layer, IP layers and MAC layer are equivalent to the controller of equipment being divided into application module, TCP module, IP module and MAC module, It is respectively intended to execute corresponding function.In the embodiment of the present invention, user equipment can also divide network structure, specifically can wrap Include TCP module and MAC module.MAC module is communicated with wireless access point, carries out the transmission of data frame, and TCP module is from MAC It is obtained in module and is sent to the TCP message of user equipment and is handled.

So another optional embodiment as the embodiment of the present invention, user equipment may include TCP module and MAC module.User equipment receives the first data frame by MAC module in step 104, and passes through MAC module to wireless access point Sending includes the first BA frame for receiving window value.

After MAC module receives the data frame that wireless access point is sent, parsing is carried out to data frame and obtains in data frame and encapsulates TCP message, TCP message is then sent to TCP module and is handled.It, can be to MAC module after TCP module receives TCP message Returning indicates that confirmation has received the TCP ACK message of TCP message, and is added to the reception of user equipment in TCP ACK message Window value.So MAC module can obtain the reception window value of user equipment by the TCP ACK message that TCP module is sent. So MAC module includes into the BA frame that wireless access point is sent in step 104 first receives window value, it can be MAC mould Block sends the second TCP message in the forward direction TCP module for receiving the first data frame, and receives the 2nd TCP of correspondence of TCP module transmission It is obtained in 2nd TCP ACK message of message.

After MAC module obtains reception window value in the TCP ACK message sent by TCP module, not necessarily stand It carves to wireless access point and sends BA frame, so the reception window value that MAC module can will acquire first is stored, subsequent to nothing Wireless access point is sent to for window value is received by BA frame when line access point sends BA frame.

During storing the reception window value of user equipment, the reception window value of user equipment may be sent out MAC module Changing, MAC module in order to guarantee storage receptions window value accuracy, need to storage reception window value progress more Newly.

Specifically, MAC module is when receiving window value by the 2nd TCP ACK Receive message to first, it can be determined that obtain Whether first taken receives window value identical as the second reception window value of storage.It is received if first receives window value with second Window value is not identical, illustrates that the reception window value of user equipment is changed, then can connect window value for second and be updated to One receives window value；If the first reception window value is identical as the reception window value of storage, illustrate the reception window of user equipment Value does not change, then is not updated to the second reception window value.

In order to further ensure the stability of BA frame transmission, MAC module can change in the reception window value of acquisition When, the BA frame including receiving window value is sent to wireless access point, and when the reception window value of acquisition does not change, Xiang Wu It includes the BA frame for receiving window value that line access point, which is sent not, so as to reduce the influence to the transmission of BA frame.

Specifically, MAC module can judge whether MAC module has updated MAC in the target time period when sending BA frame Module storage reception window value, target time section indicate MAC module before once to wireless access point send BA frame and it is current when Period between quarter；When MAC module has updated the reception window value of transmission device storage in the target time period, explanation is obtained The reception window value taken is changed, then MAC module is sent by being wirelessly connected to wireless access point including the first reception window The BA frame of mouth value；When MAC module does not update the reception window value of transmission device storage in the target time period, illustrate acquisition It receives window value not change, then MAC module does not include the first reception window to wireless access point transmission by being wirelessly connected The BA frame of value.

Also, in above process, when first receives window value and the second reception window value is not identical, MAC module is also Second reception window value of storage can be updated to the first reception window value, to guarantee the store in MAC module second reception The accuracy of window value.

It, can be with after MAC module receives the first data frame as another optional embodiment of the embodiment of the present invention The first TCP message is sent to TCP module.Also, MAC module can also cache the first TCP message, not connect in TCP module so When receiving the first TCP message, the first TCP message can be retransmitted, to guarantee that TCP module can receive the first TCP message.

Specifically, retransmission mechanism can be set in MAC module.

For example, after MAC module sends the first TCP message to TCP module, when the preset number for receiving TCP module transmission When a DACK message, the first TCP message can be transmitted again to TCP module.

TCP module can received when not receiving the first TCP message with periodicity sending DACK message, MAC module It when preset number DACK message, can determine that TCP module does not receive TCP message, then can be passed again to TCP module at this time Defeated TCP message.Preset number can be set to 3.

For another example after MAC module sends the first TCP message to TCP module, when not receiving TCP mould within a preset period of time When the target TCP ACK message that block is sent, MAC module can transmit the first TCP message again to TCP module.

Target TCP ACK message indicates that TCP module has received the first TCP message.TCP module is receiving the first TCP When message, target TCP ACK message can be timely feedbacked, so if MAC module does not receive TCP ACK within a preset period of time Message, it can be said that bright TCP module does not receive TCP message, then MAC module can transmit first to TCP module again at this time TCP message.The length of preset time period can be arranged according to actual scene.

It should be noted that MAC module to TCP module send the first TCP message after, when receive TCP module transmission When target TCP ACK message, MAC module can be confirmed that TCP module has received first TCP message, then can delete at this time Except the first TCP message of caching.

In the embodiment of the present invention, MAC module can also store biography in order to avoid going wrong when the first TCP message of caching The information of the TCP connection of defeated first TCP message, for example, the IP address of the network equipment and user equipment, port numbers etc..Simultaneously The serial number etc. when serial number, the first TCP message of encapsulation of the first TCP message is stored when caching the first TCP message.Pass through storage Above- mentioned information carry out unique identification TCP message, to avoid caching or go wrong when retransmitting the first TCP message.

Further embodiment of this invention provides a kind of method of data transmission, for such as scheming in the network architecture shown in Fig. 2 Shown in 4, this approach includes the following steps.

201, TCP connection is established between the network equipment and user equipment.

Data handling procedure and principle in this step is identical as the data handling procedure of step 101 and principle, herein not It repeats again.

202, the network equipment sends the first TCP message to wireless access point.

Data handling procedure and principle in this step is identical as the data handling procedure of step 102 and principle, herein not It repeats again.

203, after the first TCP message is encapsulated as the first data frame by wireless access point, the first data frame is sent to transmission Equipment.

The process and principle of data processing are identical as the data handling procedure of step 103 and principle in this step, distinguish it It is in step 203 wireless access point and the first data frame is sent to transmission device, and step 103 wireless access point is by first Data frame is sent to user equipment.

204, after transmission device receives the first data frame, sending to wireless access point includes the first BA for receiving window value Frame.

BA frame is for indicating that transmission device has received the first data frame.Pass through nothing between transmission device and wireless access point Gauze network transmitting data frame, after wireless access point sends data frame to transmission device by wireless network, transmission device can lead to It crosses wireless network and returns to BA frame to wireless access point, wireless access point, which receives BA frame, can be confirmed that transmission device has been received Data frame.

After transmission device receives the first data frame, parsing you can get it the first TCP message is carried out to the first data frame, and The first TCP message is sent to user equipment, it is generally the case that transmission device is needed in pair for receiving user equipment return at this time After the first TCP ACK message for answering the first TCP message, the first TCP ACK message is sent out to the network equipment by wireless access point It send, and user equipment is added to the first of user equipment in the first TCP ACK message and receives window value.

Due to being wired connection between user equipment and transmission device, data transmission ratio is relatively reliable, and packet loss possibility is smaller, Therefore, if transmission device is successfully received the first data frame, it usually may indicate that user equipment can be successfully received first TCP message, therefore in the embodiment of the present invention, in order to reduce the data transmitted between wireless access point and transmission device, transmission is set After the standby transmission BA frame to wireless access point, wireless access point can be constructed for confirming that user equipment has received the first TCP First TCP ACK message of message is simultaneously sent to the network equipment, sends first to wireless access point without transmission device TCP ACK message.

But the network equipment needs to determine the reception window value of user equipment by the first TCP ACK message, so transmission Equipment can determine that the first of user equipment receives window value by the TCP ACK message that user equipment is sent, and to nothing When line access point sends BA frame, first that user equipment is added in BA frame receives window value, and the first of user equipment is received Window value is sent to wireless access point, and wireless access point can be when constructing the first TCP ACK message, by BA frame after receiving BA frame In the first reception window value be added in the first TCP ACK message, and then the network equipment is enable to be reported according to the first TCP ACK Text determines that the first of user equipment receives window value.

As a kind of optional embodiment of the embodiment of the present invention, user equipment is before receiving the first data frame, also It can be when by being wirelessly connected the second data frame for encapsulating the second TCP message for receiving wireless access point transmission, by having Line connects to user equipment and sends the second TCP message；And it receives user equipment and is reported by the 2nd TCP ACK that wired connection is sent Text, the 2nd TCP ACK message include the first reception window value, and the 2nd TCP ACK message is for indicating that user equipment has received Second TCP message.

Transmission device is sent to use after receiving the second data frame, by the second TCP message encapsulated in the second data frame Family equipment, user equipment can reply the 2nd TCP ACK message after receiving the second TCP message, and be reported by the 2nd TCP ACK Text carries the first reception window value of user equipment, and transmission device can pass through the 2nd TCP ACK Receive message user equipment First receives window value, then the first reception window value can be sent to wireless access point by BA frame in this step.

It should be noted that transmission device get every time receive window value when, not necessarily at once to wirelessly connecing Access point sends BA frame and sends so the reception window value that transmission device can will acquire first is stored when to wireless access point Pass through BA frame when BA frame again and is sent to wireless access point for window value is received.

During storing the reception window value of user equipment, the reception window value of user equipment may be sent out transmission device Changing, transmission device in order to guarantee storage receptions window value accuracy, need to storage reception window value progress more Newly.

Specifically, transmission device is when getting the first reception window value, it can be determined that the first of acquisition receives window value It is whether identical that window value is received with the second of storage.If the first reception window value and the second reception window value be not identical, explanation The reception window value of user equipment is changed, then can connect window value for second and be updated to the first reception window value；If First reception window value is identical as the reception window value of storage, illustrates that the reception window value of user equipment does not change, then not Second reception window value is updated.

In addition, can be obtained in transmission device in the embodiment of the present invention in order to further ensure the stability of BA frame transmission Reception window value when changing, sending to wireless access point includes receiving the BA frame of window value, and obtain in transmission device Reception window value when not changing, sending to wireless access point does not include the BA frame for receiving window value, so as to reduce Influence to the transmission of BA frame.

Specifically, transmission device can judge whether transmission device has updated in the target time period when sending BA frame The reception window value of transmission device storage, target time section once send BA frame and work as before indicating transmission device to wireless access point Period between the preceding moment；When having updated the reception window value of transmission device storage in the target time period, illustrate to transmit The reception window value that equipment obtains is changed, then transmission device is sent by being wirelessly connected to wireless access point including first Receive the BA frame of window value；When not updating the reception window value of transmission device storage in the target time period, illustrate that transmission is set The standby reception window value obtained does not change, then transmission device does not include first to wireless access point transmission by being wirelessly connected Receive the BA frame of window value.

205, after transmission device receives the first data frame, the first TCP message is sent to user equipment.

Transmission device is sent to user by wired connection after parsing the first TCP message in the first data frame, by it Equipment.

After user equipment receives the first TCP message, can return to transmission device indicates that confirmation has received the first TCP message The first TCP ACK message, and the first TCP ACK message be added to user equipment first receive window value.So transmission The reception window value of user equipment can be obtained by the TCP ACK message that user equipment is sent.

May be used also after transmission device receives the first data frame as another optional embodiment of the embodiment of the present invention To cache the first TCP message, so when user equipment does not receive the first TCP message, the first TCP message can be retransmitted, with Guarantee that user equipment can receive the first TCP message.

Specifically, retransmission mechanism can be set between transmission device and user equipment.

For example, after transmission device sends the first TCP message to user equipment, when the present count for receiving user equipment transmission When mesh DACK message, the first TCP message can be transmitted again to user equipment.

User equipment can received when not receiving the first TCP message with periodicity sending DACK message, transmission device When to preset number DACK message, it can determine that user equipment does not receive TCP message, then it at this time can be to user equipment again Secondary transmission TCP message.Preset number can be set to 3.

For another example after transmission device sends the first TCP message to user equipment, when not receiving user within a preset period of time When the target TCP ACK message that equipment is sent, transmission device can transmit the first TCP message again to user equipment.

Target TCP ACK message indicates that user equipment has received the first TCP message.User equipment is receiving first When TCP message, target TCP ACK message can be timely feedbacked, so if transmission device does not receive TCP within a preset period of time ACK message, it can be said that bright user equipment does not receive TCP message, then transmission device can pass again to user equipment at this time Defeated first TCP message.The length of preset time period can be arranged according to actual scene.

It should be noted that being sent after transmission device sends the first TCP message to user equipment when receiving user equipment Target TCP ACK message when, transmission device can be confirmed that user equipment has received first TCP message, then at this time may be used To delete the first TCP message of caching.

In the embodiment of the present invention, transmission device can also store biography in order to avoid going wrong when the first TCP message of caching The information of the TCP connection of defeated first TCP message, for example, the IP address of the network equipment and user equipment, port numbers etc..Simultaneously The serial number etc. when serial number, the first TCP message of encapsulation of the first TCP message is stored when caching the first TCP message.Pass through storage Above- mentioned information carry out unique identification TCP message, to avoid caching or go wrong when retransmitting the first TCP message.

It should be noted that step 204 neutralization procedure 205 does not have strict time sequencing when being executed.

206, after wireless access point receives BA frame, the information of the first TCP message is determined according to BA frame.

After wireless access point receives BA frame, it can be confirmed that transmission device has been received by the first data frame, sealed in the first data frame The first TCP message is filled, due to being wired connection between user equipment and transmission device, data transmission ratio is relatively reliable, and packet loss can Energy property is smaller, it is possible to confirm that user equipment has received the first TCP message.Wireless access point can determine according to BA frame The information of one TCP message, in order to be configured to the first TCP ACK report that confirmation user equipment has received the first TCP message Text.

Specifically, in step 203, wireless access point can store the sequence of the first data frame sent to transmission device Number, the corresponding relationship between the serial number of the information of the first TCP message and the first data frame and the information of the first TCP message.This In step, serial number of the wireless access point according to available the confirmed data frame of BA frame out of the information in BA frame, i.e. the first data The serial number of frame, and then can determine that and be encapsulated in first in the first data frame according to the serial number of the first data frame and corresponding relationship The information of TCP message.

207, wireless access point is according to the first TCP ACK message of information structuring of the first TCP message.

First TCP ACK message is for confirming that user equipment has received the first TCP message.Wireless access point can basis The first TCP ACK message of information structuring of first TCP message is sent without transmission device, reduces transmission in wireless network Data volume.

As another optional embodiment of the embodiment of the present invention, transmission device can become receiving window value Just pass through BA frame when change and send the reception window value after variation, so wireless access point can include receiving window receiving for the first time When the BA frame of value, window value will be received and stored.It is subsequent receive again construct TCP ACK message after BA frame when, judgement It whether include receiving window value in BA frame.If including receiving window value in BA frame, illustrate the reception window of user equipment Mouth value changes, and needs to construct TCP ACK message according to the reception window value for including in BA frame at this time；If do not wrapped in BA frame Reception window value is included, then illustrates that the reception window value of user equipment does not change, needs to be stored according to wireless access point at this time Reception window value construct TCP ACK message.It meanwhile including that when receiving window value, wireless access point is stored in BA frame Reception window value be updated to the reception window value in BA frame included, to guarantee the reception window value stored in wireless access point Accuracy.

It should be noted that the reception window value of wireless access point storage is wireless access point from received transmission It is obtained in the BA frame that equipment is sent.

208, wireless access point sends the first TCP ACK message of construction to the network equipment.

In the embodiment of the present invention, transmission device is reported by being wirelessly connected the TCP that encapsulates that reception wireless access point is sent After the data frame of text, sending to wireless access point includes the BA frame for receiving window value, and wireless access point is used in reception for confirming After family equipment has received the BA frame of data frame, the information of the TCP message encapsulated in data frame can be determined according to BA frame, into And it can construct for confirming that user equipment has received the TCP ACK message of TCP message, and the TCP ACK of construction is reported Text is sent to the network equipment.Such wireless access point can construct after receiving BA frame for confirming that user equipment has received The TCP ACK message of TCP message, and it is sent to the network equipment, so transmission device does not need to be sent to it after sending BA frame TCP ACK message, wireless access point can also construct TCP ACK message and be sent to the network equipment, to complete to retransmit affirmation mechanism, Reduce the quantity by being wirelessly connected transmission data between wireless access point and transmission device, and then improves TCP transmission number According to performance.

Fig. 5 is the schematic block diagram for the wireless access point 300 that an embodiment provides according to the present invention.As shown in figure 5, the nothing Line access point 300 includes:

Receiving unit 301, for passing through the BA frame for being wirelessly connected receiving terminal apparatus and sending between terminal device, BA Frame is used to confirm the first data frame that terminal device has received wireless access point transmission, encapsulates first in the first data frame TCP message；

Determination unit 302, for determining the information of the first TCP message according to BA frame；

Structural unit 303, for the first TCP ACK message of information structuring according to the first TCP message, the first TCP ACK For message for confirming that user equipment has received the first TCP message, user equipment is terminal device or passes through terminal device and nothing The equipment of line access point communication；

Transmission unit 304, for sending the first TCP ACK message to the network equipment, the network equipment is to send the first TCP report The equipment of text.

In the embodiment of the present invention, wireless access point 300 is being received for confirming that terminal device has received the BA of data frame After frame, the information of the TCP message encapsulated in data frame can be determined according to BA frame, and then can be constructed for confirming user Equipment has received the TCP ACK message of TCP message, and the TCP ACK message of construction is sent to the network equipment.It is so wireless Access point 300 can be constructed after receiving BA frame for confirming that user equipment has received the TCP ACK message of TCP message, And it is sent to the network equipment, so terminal device does not need to be sent to it TCP ACK message, wireless access point after sending BA frame 300, which can also construct TCP ACK message, is sent to the network equipment, to complete to retransmit affirmation mechanism, reduces and passes through wireless access It is wirelessly connected the quantity of transmission data between point and terminal device, and then improves the performance of TCP transmission data.

It is understood that the first TCP ACK message includes the first reception window value, the first reception window value is wireless Access point storage or obtaining from BA frame, the first reception window value is used to indicate that the TCP of user equipment to receive the big of window It is small.

Fig. 6 is the schematic block diagram of the wireless access point 300 provided according to the present invention another or multiple embodiments.

It is understood that as shown in fig. 6, wireless access point 300 further include:

Judging unit 305, for judging whether BA frame includes receiving window value；

Determination unit 302 is also used to determine that the first reception window value is in BA frame when BA frame includes receiving window value Receive window value；

Determination unit 302 is also used to determine that the first reception window value is wirelessly to connect when BA frame does not include receiving window value The reception window value of access point storage, the reception window value of wireless access point storage are that wireless access point receives before receiving BA frame Another BA frame in obtain, another BA frame is what terminal device was sent.

Updating unit 306, for when BA frame includes receiving window value, the reception window value that wireless access point is stored to be more The new reception window value in BA frame.

Storage unit 307, for storing the packaged TCP report into the serial number of the data frame of terminal device transmission and data frame Corresponding relationship between the information of text；

Determination unit 302 is specifically used for when determining the information of the first TCP message according to BA frame:

Wireless access point 300 according to an embodiment of the present invention can correspond to data transmission according to an embodiment of the present invention Executing subject in method, and above and other operation and/or function of the modules in wireless access point 300 is respectively The corresponding process for realizing each method performed by wireless access point in Fig. 3 or embodiment illustrated in fig. 4, for sake of simplicity, herein It repeats no more.

Fig. 7 is the schematic block diagram for the user equipment 400 that an embodiment provides according to the present invention.As shown in fig. 7, the user Equipment 400 includes:

First receiving unit 401 is sent for receiving wireless access point by the wireless connection between wireless access point The first data frame for encapsulating the first TCP message；

First transmission unit 402, for receiving window value including first by being wirelessly connected to send to wireless access point Block confirms that BA frame, BA frame connect wireless access point construction including first for indicating that user equipment has received the first data frame Receive window value and for confirming that user equipment has received the first TCP ACK message of the first TCP message, the first reception window value For indicating that the TCP of user equipment receives the size of window.

In the embodiment of the present invention, user equipment 400 encapsulates TCP what is sent by wireless connection reception wireless access point After the data frame of message, sending to wireless access point includes the BA frame for receiving window value, constructs wireless access point including the One receives window value and for confirming that user equipment 400 has received the TCP ACK message of TCP message, such user equipment 400 The reception window value of user equipment 400 is sent, to wireless access point by BA frame so as to so that wireless access point constructs use The TCP ACK message of TCP message is had received in confirmation user equipment 400, without user equipment 400 to wireless access point TCP ACK message is sent, reduces the quantity by being wirelessly connected transmission data, improves the performance of TCP transmission data.

Fig. 8 is the schematic block diagram of the user equipment 400 provided according to the present invention another or multiple embodiments.

It is understood that as shown in figure 8, user equipment 400 can also include:

Processing unit 403, for receiving the encapsulation of wireless access point transmission by being wirelessly connected in the first receiving unit 401 When the second data frame of the second TCP message, obtains first and receive window value.

It is understood that as shown in figure 8, user equipment 400 can also include MAC module and TCP module；MAC module Including the first receiving unit 401, the first transmission unit 402, processing unit 403, the second receiving unit 404 and the second transmission unit 405；

Processing unit 403 is specifically used for receiving what wireless access point was sent by being wirelessly connected in the first receiving unit 401 When encapsulating the second data frame of the second TCP message, the second TCP message is sent to TCP module by the second transmission unit 405； And for receiving the 2nd TCP ACK message that TCP module is sent, the 2nd TCP ACK message by the second receiving unit 404 Window value is received including first, the 2nd TCP ACK message is for indicating that TCP module has received the second TCP message.

It is understood that processing unit 403 is also used to judge that the first reception window value and MAC module stores second connects Whether identical receive window value；And be used for when described first receives window value and the second reception window value is not identical, it will The second reception window value is updated to described first and receives window value.

It is understood that processing unit 403 is also used to judge whether MAC module has updated MAC in the target time period Module storage reception window value, target time section indicate MAC module before once to wireless access point send BA frame and it is current when Period between quarter；

First transmission unit 402 is specifically used for that the reception window value of MAC module storage ought be had updated in the target time period When, the BA frame for receiving window value including first is sent by being wirelessly connected to wireless access point.

It is understood that processing unit 403 is also used to cache the first TCP message；And it is single for being sent by second Member 405 sends the first TCP message to TCP module.

It is understood that processing unit 403, which is also used to work as, receives TCP module transmission by the second receiving unit 404 Preset number DACK message when, the first TCP message is transmitted to TCP module by the second transmission unit 405 again.

It is understood that processing unit 403 is also used to not connect by the second receiving unit 404 within a preset period of time When receiving the target TCP ACK message of TCP module transmission, first is transmitted again to TCP module by the second transmission unit 408 TCP message, target TCP ACK message indicate that TCP module has received the first TCP message.

It is understood that processing unit 403, which is used to work as, receives TCP module transmission by the second receiving unit 404 When target TCP ACK message, the first TCP message of caching is deleted, target ACK message indicates that TCP module has received the first TCP Message.

It should be noted that MAC module includes the first receiving unit 401, the first transmission unit in the embodiment of the present invention 402 and processing unit 403, then it can execute performed by the first receiving unit 401, the first transmission unit 402 and processing unit 403 Content.

User equipment 400 according to an embodiment of the present invention can correspond to the side of data transmission according to an embodiment of the present invention Executing subject in method, and above and other operation and/or function of the modules in user equipment 400 is respectively for reality Corresponding process performed by user equipment in existing embodiment illustrated in fig. 3, for sake of simplicity, details are not described herein.

Fig. 9 is the schematic block diagram for the transmission device 500 that an embodiment provides according to the present invention.As shown in figure 9, the transmission Equipment 500 includes:

First receiving unit 501, for encapsulating the first transmission by the wireless connection reception between wireless access point First data frame of control protocol TCP message, the first TCP message are what the network equipment was sent to user equipment；

First transmission unit 502, for receiving window value including first by being wirelessly connected to send to wireless access point Block confirms that BA frame, BA frame connect wireless access point construction including first for confirming that transmission device has received the first data frame Receive window value and for confirming that user equipment has received the first TCP acknowledgment ACK message of the first TCP message, the first reception window Mouth value is for indicating that the TCP of user equipment receives the size of window；

Second transmission unit 503, for sending the first TCP to user equipment by the wired connection between user equipment Message.

In the embodiment of the present invention, transmission device 500 encapsulates TCP what is sent by wireless connection reception wireless access point After the data frame of message, sending to wireless access point includes the BA frame for receiving window value, constructs wireless access point including the One receives window value and is used to confirm that user equipment to have received the TCP ACK message of TCP message, and such transmission device 500 is logical The reception window value that BA frame sends user equipment to wireless access point is crossed, so as to so that wireless access point oneself is constructed and is used for Confirmation user equipment has received the TCP ACK message of TCP message, sends TCP to wireless access point without user equipment ACK message reduces the quantity by being wirelessly connected transmission data, improves the performance of TCP transmission data.

Figure 10 is the schematic block diagram of the transmission device 500 provided according to the present invention another or multiple embodiments.

It is understood that the second transmission unit 503 is also used to receive envelope by being wirelessly connected in the first receiving unit 501 When having filled the second data frame of the second TCP message, the second TCP message is sent to user equipment by wired connection；

As shown in figure 8, transmission device 500 can also include:

Second receiving unit 504, the 2nd TCP ACK message sent for receiving user equipment by wired connection, the Two TCP ACK messages include the first reception window value, and the 2nd TCP ACK message is for indicating that user equipment has received second TCP message.

It is understood that as shown in figure 8, transmission device 500 can also include:

First judging unit 505, for judging that the second of the first reception window value and transmission device storage receives window value It is whether identical；

Updating unit 506 is used for when first receives window value and the second reception window value is not identical, by the second reception window Mouth value is updated to the first reception window value.

Second judgment unit 507, for judging whether transmission device has updated transmission device storage in the target time period Reception window value, target time section once sends BA frame and between current time to wireless access point before indicating transmission device Period；

First transmission unit 502 is specifically used for that the reception window value of transmission device storage ought be had updated in the target time period When, the BA frame for receiving window value including first is sent by being wirelessly connected to wireless access point.

Cache unit 508, for caching the first TCP message.

It is understood that the second transmission unit 503 is also used to receive user equipment transmission when the second receiving unit 504 Preset number duplicate acknowledgment DACK message when, the first TCP message is transmitted to user equipment by wired connection again.

It is understood that the second transmission unit 503 is also used to not receive within a preset period of time when the second receiving unit 504 To user equipment send target TCP ACK message when, the first TCP message is transmitted to user equipment by wired connection again, Target TCP ACK message indicates that user equipment has received the first TCP message.

Unit 509 is deleted, for receiving the target TCP ACK message of user equipment transmission when the second receiving unit 504 When, the first TCP message of caching is deleted, target ACK message indicates that TCP module has received the first TCP message.

Transmission device 500 according to an embodiment of the present invention can correspond to the side of data transmission according to an embodiment of the present invention Executing subject in method, and above and other operation and/or function of the modules in transmission device 500 is respectively for reality Corresponding process performed by transmission device in existing embodiment illustrated in fig. 4, for sake of simplicity, details are not described herein.

Figure 11 is the schematic block diagram of wireless access point 600 according to another embodiment of the present invention.As shown in figure 11, wirelessly Access point 600 includes processor 601, memory 602 and communication interface 603, and memory 602 is for storing executable program generation Code, processor 601 are corresponding with executable program code to run by reading the executable program code stored in memory 602 Program, communication interface 603 is used for and external device communication, wireless access point 600 can also include bus 604, bus 604 use In connection processor 601, memory 602 and communication interface 603, pass through processor 601, memory 602 and communication interface 603 Bus 604 is in communication with each other.

Wireless access point 600 according to an embodiment of the present invention, can correspond to data check according to an embodiment of the present invention Executing subject in method, and each operation and/or function in wireless access point 600 is respectively in order to realize shown in Fig. 3 to Fig. 4 Corresponding process performed by wireless access point in embodiment, for sake of simplicity, details are not described herein.

Figure 12 is the schematic block diagram of user equipment 700 according to another embodiment of the present invention.As shown in figure 12, Yong Hushe Standby 700 include processor 701, memory 702 and communication interface 703, and memory 702 is used to store executable program code, Processor 701 is corresponding with executable program code to run by reading the executable program code stored in memory 702 Program, communication interface 703 is used for and external device communication, and user equipment 700 can also include bus 704, and bus 704 is for connecting Processor 701, memory 702 and communication interface 703 are connect, processor 701, memory 702 and communication interface 703 is made to pass through bus 704 are in communication with each other.

User equipment 700 according to an embodiment of the present invention can correspond to the side of data transmission according to an embodiment of the present invention Executing subject in method, and each operation and/or function in user equipment 700 is respectively in order to realize in embodiment illustrated in fig. 3 Corresponding process performed by user equipment, for sake of simplicity, details are not described herein.

Figure 13 is the schematic block diagram of transmission device 800 according to another embodiment of the present invention.As shown in figure 13, transmission is set Standby 800 include processor 801, memory 802 and communication interface 803, and memory 802 is used to store executable program code, Processor 801 is corresponding with executable program code to run by reading the executable program code stored in memory 802 Program, communication interface 803 is used for and external device communication, and transmission device 800 can also include bus 804, and bus 804 is for connecting Processor 801, memory 802 and communication interface 803 are connect, processor 801, memory 802 and communication interface 803 is made to pass through bus 804 are in communication with each other.

Transmission device 800 according to an embodiment of the present invention can correspond to the side of data transmission according to an embodiment of the present invention Executing subject in method, and each operation and/or function in transmission device 800 is respectively in order to realize in embodiment illustrated in fig. 4 Corresponding process performed by transmission device, for sake of simplicity, details are not described herein.

One embodiment of the invention provides a kind of system of data transmission, including wireless access as shown in Figure 5 or Figure 6 Point 300 and such as Fig. 7 or user equipment shown in Fig. 8 400.

One embodiment of the invention provides a kind of system of data transmission, including wireless access as shown in Figure 5 or Figure 6 Point 300 and transmission device 500 as shown in fig. 9 or 10.

In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program Product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all or It partly generates according to process or function described in the embodiment of the present invention.The computer can be general purpose computer, dedicated meter Calculation machine, computer network or other programmable devices.The computer instruction can store in computer readable storage medium In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center User's line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or Data center is transmitted.The computer readable storage medium can be any usable medium that computer can access or It is comprising data storage devices such as one or more usable mediums integrated server, data centers.The usable medium can be with It is magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk (olid State Disk, SSD)) etc..

Claims

1. a kind of method of data transmission characterized by comprising

Wireless access point receives the block that the terminal device is sent by the wireless connection between terminal device and confirms BA frame, institute BA frame is stated for confirming that the terminal device has received the first data frame that the wireless access point is sent, first data The first transmission control protocol TCP message is encapsulated in frame；

The wireless access point determines the information of first TCP message according to the BA frame；

Information structuring first TCP acknowledgment ACK message of the wireless access point according to first TCP message, the first TCP For confirming that user equipment has received first TCP message, the user equipment is the terminal device or leads to ACK message Cross the equipment that the terminal device is communicated with the wireless access point；

The wireless access point sends the first TCP ACK message to the network equipment, and the network equipment is to send described the The equipment of one TCP message.

2. the method according to claim 1, wherein the first TCP ACK message includes the first reception window Value, the first reception window value are that the wireless access point stores or obtaining from the BA frame, first reception Window value is used to indicate that the TCP of the user equipment to receive the size of window.

3. according to the method described in claim 2, it is characterized in that, in the wireless access point according to first TCP message Information structuring the first TCP acknowledgment ACK message before, further includes:

The wireless access point judges whether the BA frame includes receiving window value；

When the BA frame includes receiving window value, the wireless access point determines that described first receives window value as the BA frame In reception window value；

When the BA frame does not include receiving window value, the wireless access point determines that described first receives window value as the nothing The reception window value of line access point storage, the reception window value of the wireless access point storage are that the wireless access point is receiving It is obtained in received another BA frame before the BA frame, another BA frame is what the terminal device was sent.

4. according to the method described in claim 3, it is characterized by further comprising:

When the BA frame includes receiving window value, reception window value that the wireless access point stores the wireless access point The reception window value being updated in the BA frame.

5. method according to claim 1-4, which is characterized in that the wireless access point is true according to the BA frame Before the information of fixed first TCP message, further includes:

The wireless access point stores the packaged TCP into the serial number for the data frame that the terminal device is sent and the data frame Corresponding relationship between the information of message；

The wireless access point determines the information of first TCP message according to the BA frame, comprising:

The wireless access point obtains the first serial number, the data that BA frame described in first serial number is confirmed according to the BA frame The serial number of frame；

The wireless access point determines the information of first TCP message according to first serial number and the corresponding relationship.

6. a kind of method of data transmission characterized by comprising

User equipment encapsulates first by what the wireless connection reception wireless access point between wireless access point was sent First data frame of transmission control protocol TCP message；

The user equipment is true by the block being wirelessly connected to wireless access point transmission including the first reception window value Recognize BA frame, the BA frame makes the wireless access point structure for indicating that the user equipment has received first data frame It makes including the first reception window value and for confirming that the user equipment has received the first of first TCP message TCP acknowledgment ACK message, the first reception window value are used to indicate that the TCP of the user equipment to receive the size of window.

7. according to the method described in claim 6, it is characterized in that, passing through between wireless access point in the user equipment Receive the first data frame for encapsulating the first transmission control protocol TCP message that the wireless access point is sent it Before, further includes:

The user equipment is being wirelessly connected second TCP message that encapsulates for receiving that the wireless access point sends by described When the second data frame, obtains described first and receive window value.

8. the method according to the description of claim 7 is characterized in that the user equipment includes medium access control MAC module And TCP module；

The user equipment is being wirelessly connected second TCP message that encapsulates for receiving that the wireless access point sends by described When the second data frame, obtains described first and receives window value, comprising:

The MAC module is being wirelessly connected second TCP message that encapsulates for receiving that the wireless access point sends by described When the second data frame, Xiang Suoshu TCP module sends second TCP message；

The MAC module receives the 2nd TCP ACK message that the TCP module is sent, and the 2nd TCP ACK message includes institute The first reception window value is stated, the 2nd TCP ACK message is for indicating that the TCP module has received the 2nd TCP report Text；

The user equipment receives encapsulating for the wireless access point transmission by the wireless connection between wireless access point First data frame of the first transmission control protocol TCP message, comprising:

The MAC module receives first data frame by the wireless connection；

The user equipment is true by the block being wirelessly connected to wireless access point transmission including the first reception window value Recognize BA frame, comprising:

The MAC module sends the BA frame for receiving window value including first by described be wirelessly connected to the wireless access point.

9. according to the method described in claim 8, it is characterized in that, the MAC module receives the TCP module is sent second TCP ACK message, comprising:

The MAC module judge it is described first reception window value and the MAC module store second reception window value whether phase Together；

When described first receives window value and the second reception window value is not identical, the MAC module connects described second It receives window value and is updated to the first reception window value.

10. method according to claim 8 or claim 9, which is characterized in that the MAC module is wirelessly connected by described to institute Stating wireless access point and sending includes the first BA frame for receiving window value, comprising:

The MAC module judges whether the MAC module has updated the reception window of the MAC module storage in the target time period Mouthful value, the target time section indicate before the MAC module once to the wireless access point send BA frame and current time it Between period；

When having updated the reception window value of the MAC module storage in the target time period, the MAC module passes through the nothing It includes the described first BA frame for receiving window value that line, which is connected and sent to the wireless access point,.

11. according to the described in any item methods of claim 8-10, which is characterized in that pass through in the MAC module described wireless After connection receives first data frame, further includes:

The MAC module caches first TCP message；

The MAC module sends first TCP message to the TCP module.

12. according to the method for claim 11, which is characterized in that in the MAC module to described in TCP module transmission After first TCP message, further includes:

When receiving the preset number duplicate acknowledgment DACK message that the TCP module is sent, the MAC module is to described TCP module transmits first TCP message again.

13. according to the method for claim 11, which is characterized in that in the MAC module to described in TCP module transmission After first TCP message, further includes:

When not receiving the target TCP ACK message that the TCP module is sent within a preset period of time, the MAC module is to institute It states TCP module and transmits first TCP message again, the target TCP ACK message indicates that the TCP module has received institute State the first TCP message.

14. the described in any item methods of 1-13 according to claim 1, which is characterized in that further include:

When receiving the target TCP ACK message that the TCP module is sent, the MAC module deletes described the first of caching TCP message, the target ACK message indicate that the TCP module has received first TCP message.

15. a kind of method of data transmission characterized by comprising

Transmission device encapsulates the first transmission control protocol TCP message by the wireless connection reception between wireless access point First data frame, first TCP message are what the network equipment was sent to user equipment；

The transmission device is true by the block being wirelessly connected to wireless access point transmission including the first reception window value Recognize BA frame, the BA frame makes the wireless access point structure for confirming that the transmission device has received first data frame It makes including the first reception window value and for confirming that the user equipment has received the first of first TCP message TCP acknowledgment ACK message, the first reception window value are used to indicate that the TCP of the user equipment to receive the size of window；

The transmission device sends the first TCP to the user equipment by the wired connection between the user equipment Message.

16. according to the method for claim 15, which is characterized in that pass through between wireless access point in the transmission device Wireless connection receive the first data frame for encapsulating the first transmission control protocol TCP message before, further includes:

The transmission device passes through institute when encapsulating the second data frame of the second TCP message by wireless connection reception It states wired connection and sends second TCP message to the user equipment；

The transmission device receives the 2nd TCP ACK message that the user equipment is sent by the wired connection, and described Two TCP ACK messages include the first reception window value, and the 2nd TCP ACK message is for having indicated the user equipment Receive second TCP message.

17. according to the method for claim 16, which is characterized in that the transmission device receives the user equipment and passes through institute After the 2nd TCP ACK message for stating wired connection transmission, further includes:

The transmission device judges that described first receives whether window value and the second of transmission device storage receives window value It is identical；

When described first receives window value and the second reception window value is not identical, the transmission device connects described second It receives window value and is updated to the first reception window value.

18. method according to claim 16 or 17, which is characterized in that the transmission device by it is described be wirelessly connected to It includes that the first block for receiving window value confirms BA frame that the wireless access point, which is sent, comprising:

The transmission device judges whether the transmission device has updated connecing for the transmission device storage in the target time period Receive window value, the target time section indicate before the transmission device once to the wireless access point send BA frame and it is current when Period between quarter；

When having updated the reception window value of the transmission device storage in the target time period, the transmission device passes through described It is wirelessly connected to the wireless access point and sends the BA frame for receiving window value including described first.

19. the described in any item methods of 5-18 according to claim 1, which is characterized in that pass through the nothing in the transmission device After line connection receives first data frame, further includes:

The transmission device caches first TCP message.

20. according to the method for claim 19, which is characterized in that the transmission device by with the user equipment it Between wired connection send first TCP message to the user equipment after, further includes:

When receiving the preset number duplicate acknowledgment DACK message that the user equipment is sent, the transmission device passes through institute It states wired connection and transmits first TCP message again to the user equipment.

21. according to the method for claim 19, which is characterized in that the transmission device by with the user equipment it Between wired connection send first TCP message to the user equipment after, further includes:

When not receiving the target TCP ACK message that the user equipment is sent within a preset period of time, the transmission device is logical It crosses the wired connection and transmits first TCP message again to the user equipment, the target TCP ACK message indicates institute It states user equipment and has received first TCP message.

22. the described in any item methods of 9-21 according to claim 1, which is characterized in that further include:

When receiving the target TCP ACK message that the user equipment is sent, the transmission device deletes described the of caching One TCP message, the target ACK message indicate that the TCP module has received first TCP message.

23. a kind of wireless access point characterized by comprising

Receiving unit confirms BA for receiving the block that the terminal device is sent by the wireless connection between terminal device Frame, the BA frame are used to confirm that the terminal device to have received the first data frame that the wireless access point is sent, described the The first transmission control protocol TCP message is encapsulated in one data frame；

Determination unit, for determining the information of first TCP message according to the BA frame；

Structural unit, for information structuring the first TCP acknowledgment ACK message according to first TCP message, the first TCP For confirming that user equipment has received first TCP message, the user equipment is the terminal device or leads to ACK message Cross the equipment that the terminal device is communicated with the wireless access point；

Transmission unit, for sending the first TCP ACK message to the network equipment, the network equipment is to send described first The equipment of TCP message.

24. wireless access point according to claim 23, which is characterized in that the first TCP ACK message includes first Window value is received, the first reception window value is that the wireless access point stores or obtaining from the BA frame, institute The first reception window value is stated for indicating that the TCP of the user equipment receives the size of window.

25. wireless access point according to claim 24, which is characterized in that further include:

Judging unit, for judging whether the BA frame includes receiving window value；

The determination unit is also used to when the BA frame includes receiving window value, determines that the first reception window value is described Reception window value in BA frame；

The determination unit is also used to determine that the first reception window value is institute when the BA frame does not include receiving window value The reception window value of wireless access point storage is stated, the reception window value of the wireless access point storage is that the wireless access point exists It is obtained in received another BA frame before receiving the BA frame, another BA frame is what the terminal device was sent.

26. wireless access point according to claim 25, which is characterized in that further include:

Updating unit, the reception window value for when the BA frame includes receiving window value, the wireless access point to be stored The reception window value being updated in the BA frame.

27. according to the described in any item wireless access point of claim 23-26, which is characterized in that further include:

Storage unit, for storing the packaged TCP into the serial number of the data frame of terminal device transmission and the data frame Corresponding relationship between the information of message；

The determination unit is specifically used for when determining the information of first TCP message according to the BA frame:

The first serial number, the serial number for the data frame that BA frame described in first serial number is confirmed are obtained according to the BA frame；

The information of first TCP message is determined according to first serial number and the corresponding relationship.

28. a kind of user equipment characterized by comprising

First receiving unit, for receiving the envelope that the wireless access point is sent by the wireless connection between wireless access point The first data frame of the first transmission control protocol TCP message is filled；

First transmission unit, for being sent by described be wirelessly connected to the wireless access point including the first reception window value Block confirms that BA frame, the BA frame make the wireless access for indicating that the user equipment has received first data frame Point construction includes the first reception window value and for confirming that the user equipment has received the of first TCP message One TCP acknowledgment ACK message, the first reception window value are used to indicate that the TCP of the user equipment to receive the size of window.

29. user equipment according to claim 28, which is characterized in that further include:

Processing unit, for being wirelessly connected the envelope for receiving the wireless access point and sending by described in first receiving unit When having filled the second data frame of the second TCP message, obtains described first and receive window value.

30. user equipment according to claim 29, which is characterized in that the user equipment includes medium access control MAC module and TCP module；The MAC module includes first receiving unit, first transmission unit, processing list Member, the second receiving unit and the second transmission unit；

The processing unit is specifically used for receiving the wireless access point by the wireless connection in first receiving unit When the second data frame for encapsulating the second TCP message sent, institute is sent to the TCP module by second transmission unit State the second TCP message；And it is reported for receiving the 2nd TCP ACK that the TCP module is sent by second receiving unit Text, the 2nd TCP ACK message include the first reception window value, and the 2nd TCP ACK message is for indicating described TCP module has received second TCP message.

31. user equipment according to claim 30, which is characterized in that the processing unit is also used to judge described first Whether reception window value and the second reception window value that the MAC module stores are identical；And for working as first reception window When mouth value and not identical the second reception window value, the second reception window value is updated to the first reception window Value.

32. the user equipment according to claim 30 or 31, which is characterized in that the processing unit is also used to judge described Whether MAC module has updated the reception window value of the MAC module storage in the target time period, and the target time section indicates BA frame and the period between current time once are sent to the wireless access point before the MAC module；

First transmission unit is specifically used for that the reception window value of the MAC module storage ought be had updated in the target time period When, the BA frame for receiving window value including described first is sent by described be wirelessly connected to the wireless access point.

33. according to the described in any item user equipmenies of claim 30-32, which is characterized in that the processing unit is also used to delay Deposit first TCP message；And for sending the first TCP report to the TCP module by second transmission unit Text.

34. user equipment according to claim 33, which is characterized in that the processing unit is also used to when by described the When two receiving units receive the preset number duplicate acknowledgment DACK message that the TCP module is sent, sent out by described second Unit is sent to transmit first TCP message again to the TCP module.

35. user equipment according to claim 33, which is characterized in that the processing unit is also used to when in preset time When not receiving the target TCP ACK message of TCP module transmission by second receiving unit in section, pass through described the Two transmission units transmit first TCP message to the TCP module again, and the target TCP ACK message indicates the TCP Module has received first TCP message.

36. according to the described in any item user equipmenies of claim 33-35, which is characterized in that the processing unit is also used to work as When receiving the target TCP ACK message that the TCP module is sent by second receiving unit, described the of caching is deleted One TCP message, the target ACK message indicate that the TCP module has received first TCP message.

37. a kind of transmission device characterized by comprising

First receiving unit, for encapsulating the first transmission control protocol by the wireless connection reception between wireless access point First data frame of TCP message, first TCP message are what the network equipment was sent to user equipment；

First transmission unit, for being sent by described be wirelessly connected to the wireless access point including the first reception window value Block confirms that BA frame, the BA frame make the wireless access for confirming that the transmission device has received first data frame Point construction includes the first reception window value and for confirming that the user equipment has received the of first TCP message One TCP acknowledgment ACK message, the first reception window value are used to indicate that the TCP of the user equipment to receive the size of window；

Second transmission unit, for sending described the to the user equipment by the wired connection between the user equipment One TCP message.

38. the transmission device according to claim 37, which is characterized in that second transmission unit is also used to described When one receiving unit encapsulates the second data frame of the second TCP message by wireless connection reception, pass through wired company It connects to the user equipment and sends second TCP message；

The transmission device further include:

Second receiving unit, the 2nd TCP ACK message sent for receiving the user equipment by the wired connection, institute Stating the 2nd TCP ACK message includes the first reception window value, and the 2nd TCP ACK message is for indicating that the user sets It is standby to have received second TCP message.

39. the transmission device according to claim 38, which is characterized in that further include:

First judging unit, for judging the described first the second reception window value for receiving window value and transmission device storage It is whether identical；

Updating unit is used for when described first receives window value and the second reception window value is not identical, by described second It receives window value and is updated to the first reception window value.

40. the transmission device according to claim 39 or 40, which is characterized in that further include:

Second judgment unit, for judging whether the transmission device has updated the transmission device storage in the target time period Reception window value, the target time section once sends BA frame to the wireless access point before indicating the transmission device and works as Period between the preceding moment；

First transmission unit is specifically used for that the reception window of the transmission device storage ought be had updated in the target time period When value, the BA frame for receiving window value including described first is sent by described be wirelessly connected to the wireless access point.

41. according to transmission device described in claim 37-40, which is characterized in that further include:

Cache unit, for caching first TCP message.

42. transmission device according to claim 41, which is characterized in that second transmission unit is also used to when described the When two receiving units receive the preset number duplicate acknowledgment DACK message that the user equipment is sent, pass through wired company It connects to the user equipment and transmits first TCP message again.

43. transmission device according to claim 41, which is characterized in that second transmission unit is also used to when described the When two receiving units do not receive the target TCP ACK message that the user equipment is sent within a preset period of time, have by described Line connects to the user equipment and transmits first TCP message again, and the target TCP ACK message indicates that the user sets It is standby to have received first TCP message.

44. according to transmission device described in claim 41-43, which is characterized in that further include:

Unit is deleted, when for receiving the target TCP ACK message of the user equipment transmission when second receiving unit, First TCP message of caching is deleted, the target ACK message indicates that the TCP module has received the first TCP report Text.

45. a kind of computer readable storage medium, which is characterized in that including instruction, when described instruction is run on computers, So that the computer executes as the method according to claim 1 to 6.

46. a kind of computer readable storage medium, which is characterized in that including instruction, when described instruction is run on computers, So that the computer executes such as the described in any item methods of claim 6-14.

47. a kind of computer readable storage medium, which is characterized in that including instruction, when described instruction is run on computers, So that the computer executes such as the described in any item methods of claim 15-22.