CN105704084A - Processing method of TCP connection, processing device and mobile terminal - Google Patents
Processing method of TCP connection, processing device and mobile terminal Download PDFInfo
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- CN105704084A CN105704084A CN201410682918.9A CN201410682918A CN105704084A CN 105704084 A CN105704084 A CN 105704084A CN 201410682918 A CN201410682918 A CN 201410682918A CN 105704084 A CN105704084 A CN 105704084A
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Abstract
The invention discloses a processing method of a TCP connection, a processing device of a TCP connection and a mobile terminal. With the processing method of the TCP connection adopted, in a TCP connection building process, negotiation MSSs are adjusted in real time according to a wireless environment condition; after the TCP connection is built, the length of application layer data segments which are sent to each other by two ends of the TCP connection does not exceed the size of the adjusted MSSs; and the problem of high packet loss rate of transmission under a poor signal environment can be solved, and packet loss is reduced, the stability of the TCP connection under the poor signal environment can be improved, and user experience can be enhanced.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of TCP processing method, device and mobile terminal connected。
Background technology
Along with the continuous combination of mobile communication and Internet technology, the epoch of mobile Internet arrive。In this context, people pass through various mobile terminals, it is possible to access the Internet whenever and wherever possible, obtain information and service。
But, mobile terminal is generally required for adopting various wireless technology, and such as 3G, 4G etc., in use, user inevitably enters wireless signal sometimes and covers poor environment。Access the Internet in such a case, it is possible that a large amount of packet losses, so that the transmission control protocol (TransmissionControlProtocol in internet access process, referred to as TCP) connect and become unstable, occur not opening webpage, or the situation such as file bust this, this can have a strong impact on Consumer's Experience。
The generation of above-mentioned packet loss, having is owing under difference signal environment, the decoding of wireless side unsuccessfully causes greatly, and this packet loss unsuccessfully caused that decodes is easier to occur on relatively larger packet。Packet mentioned here, it is simply that Internet protocol (InternetProtocol, referred to as IP) packet。
For in correlation technique, under the environment of difference signal, the problem that the IP packet packet loss of transmission is higher, effective solution is not also proposed。
Summary of the invention
The invention provides a kind of TCP processing method, device and mobile terminal connected, with one of at least the above。
According to an aspect of the invention, it is provided the processing method that a kind of TCP connects, including: obtain wireless environment condition information, it is determined that the first maximum message segment segment length MSS of optimization；Monitor the TCPSYN message of TCP connection request, it is determined that the 2nd MSS in described TCPSYN；A relatively described MSS and described 2nd MSS, when described 2nd MSS is more than a described MSS, replaces the 2nd MSS in described TCPSYN with a described MSS, sends described TCPSYN message；Monitor TCP connection response TCPSYNACK message, it is determined that the 3rd MSS of described TCPSYNACK message；A relatively described MSS and described 3rd MSS, when described 3rd MSS is more than a described MSS, replaces the 3rd MSS in described TCPSYNACK with a described MSS, sends described TCPSYNACK message。
Further, wireless environment condition information is obtained, it is determined that include after the first maximum message segment segment length MSS of optimization: real time record and the described MSS after updating optimization。
Further, wireless environment condition information is obtained, it is determined that the first maximum message segment segment length MSS of optimization includes: the size of the real-time statistics bit error rate, the size of the described bit error rate determine a described MSS of optimization。
Further, the TCPSYN message monitoring TCP connection request includes: intercepts upper layer application and accesses TCP connection request TCPSYN message produced by the Internet。
According to another aspect of the present invention, additionally provide a kind of TCP process device connected, including: acquisition module, it is used for obtaining wireless environment condition information, it is determined that the first maximum message segment segment length MSS of optimization；First monitors module, for monitoring the TCPSYN message of TCP connection request, it is determined that the 2nd MSS in described TCPSYN；First comparison module, for a relatively described MSS and described 2nd MSS, when described 2nd MSS is more than a described MSS, replaces the 2nd MSS in described TCPSYN with a described MSS, sends described TCPSYN message；Second monitors module, for TCP connection response TCPSYNACK message, it is determined that the 3rd MSS of described TCPSYNACK message；Second comparison module, for a described MSS and described 3rd MSS, when described 3rd MSS is more than a described MSS, replaces the 3rd MSS in described TCPSYNACK with a described MSS, sends described TCPSYNACK message。
Further, including: logging modle, for the described MSS after real time record and renewal optimization。
Further, described acquisition module includes: statistic unit, for the size of the real-time statistics bit error rate, the size of the described bit error rate determines a described MSS of optimization。
Further, first monitors module includes: interception unit, is used for intercepting upper layer application and accesses TCP connection request TCPSYN message produced by the Internet。
According to another aspect of the present invention, additionally provide a kind of mobile terminal, including: the device described in any of the above-described item。
By the present invention, adopt and obtain wireless environment condition information, it is determined that the first maximum message segment segment length MSS of optimization；Monitor the TCPSYN message of TCP connection request, it is determined that the 2nd MSS in this TCPSYN；Relatively a MSS and the 2nd MSS, when the 2nd MSS is more than a MSS, replaces the 2nd MSS in this TCPSYN, sends this TCPSYN message with a MSS；Monitor TCP connection response TCPSYNACK message, it is determined that the 3rd MSS of this TCPSYNACK message；Relatively a MSS and the 3rd MSS, when the 3rd MSS is more than a MSS, replaces the 3rd MSS in this TCPSYNACK, sends this TCPSYNACK message with a MSS。Solve under the environment of difference signal, the problem that the packet loss of transmission is higher, decrease packet loss, improve the stability that under difference signal environment, TCP connects, improve Consumer's Experience。
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention。In the accompanying drawings:
Fig. 1 is the flow chart of the processing method connected of a kind of TCP according to embodiments of the present invention；
Fig. 2 is the structured flowchart processing device connected of a kind of TCP according to embodiments of the present invention；
Fig. 3 is that mobile terminal forms structural representation according to the preferred embodiment of the invention；
Fig. 4 is the schematic flow sheet of TCP connective stability method according to the preferred embodiment of the invention。
Detailed description of the invention
Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments。It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined。
In the present embodiment, if suitable limit value can be carried out the size of the IP packet of transmission under the environment of difference signal, then can improve terminal capabilities to a great extent, reduce the generation of packet loss。
TCP is a kind of connection-oriented transport layer protocol, say, that two use TCP be applied in exchanging data with one another before must first set up TCP and connect。Set up " three-way handshake " of the TCP process connected and usually said TCP。Transmission Control Protocol defines the various parameters consulted in TCP three-way handshake process, including maximum message segment segment length (MaximumSegmentSize, referred to as MSS)。Each connection side generally indicates this option in first message segment of communication (arranging that section of SYN flag for setting up connection), and it indicates the greatest length of the message segment that local terminal can receive。
In the present embodiment, in TCP connection establishment process, by stating the MSS of local terminal, it is possible to limit the size of the message segment that follow-up opposite end sends in this TCP connection, and then the size of IP packet can be limited。
Providing a kind of TCP processing method connected in the present embodiment, Fig. 1 is the flow chart of the processing method connected of a kind of TCP according to embodiments of the present invention, as it is shown in figure 1, this flow process comprises the steps:
Step S102, obtains wireless environment condition information, it is determined that the first maximum message segment segment length MSS of optimization；
Step S104, monitors the TCPSYN message of TCP connection request, it is determined that the 2nd MSS in this TCPSYN；
Step S106, compares a MSS and the 2nd MSS, when the 2nd MSS is more than a MSS, replaces the 2nd MSS in this TCPSYN with a MSS, send this TCPSYN message；
Step S108, monitors TCP connection response TCPSYNACK message, it is determined that the 3rd MSS of this TCPSYNACK message；
Step S110, compares a MSS and the 3rd MSS, when the 3rd MSS is more than a MSS, replaces the 3rd MSS in this TCPSYNACK with a MSS, send this TCPSYNACK message。
Pass through above-mentioned steps, the MSS consulted in TCP connection establishment process can adjust in real time according to wireless environment situation at that time, after TCP connection establishment, the application layer data segment length of opposite end is issued less than the MSS size after adjusting in the two ends that TCP connects, to adapt to wireless environment at that time, thus solving under the environment of difference signal, the higher problem of packet loss of transmission, decrease packet loss, improve the stability that under difference signal environment, TCP connects, improve Consumer's Experience。
In the present embodiment, wireless environment condition information is obtained, it is determined that include after the first maximum message segment segment length MSS of optimization: real time record and the MSS after updating optimization, such that it is able to determine the MSS of optimization in real time。
In the present embodiment, the content of the wireless environment condition information of acquisition can have a lot, for instance, signal intensity, network bandwidth etc., it is preferred that can the size of the real-time statistics bit error rate, the size of this bit error rate determine that the size of the bit error rate determines a MSS of optimization。
In the present embodiment, the TCPSYN message monitoring TCP connection request may include that intercepting upper layer application accesses TCP connection request TCPSYN message produced by the Internet。
Additionally providing a kind of TCP process device connected in the present embodiment, this device is used for realizing above-described embodiment and preferred implementation, has be carried out repeating no more of explanation。As used below, term " module " can realize the software of predetermined function and/or the combination of hardware。Although the device described by following example preferably realizes with software, but hardware, or the realization of the combination of software and hardware is also likely to and is contemplated。
Fig. 2 is the structured flowchart processing device connected of a kind of TCP according to embodiments of the present invention, as in figure 2 it is shown, this device includes:
Acquisition module 20, is used for obtaining wireless environment condition information, it is determined that the first maximum message segment segment length MSS of optimization；
First monitors module 22, for monitoring the TCPSYN message of TCP connection request, it is determined that the 2nd MSS in this TCPSYN；
First comparison module 24, is used for comparing a MSS and the 2nd MSS, when the 2nd MSS is more than a MSS, replaces the 2nd MSS in this TCPSYN with a MSS, send this TCPSYN message；
Second monitors module 26, for TCP connection response TCPSYNACK message, it is determined that the 3rd MSS of this TCPSYNACK message；
Second comparison module 28, for a MSS and the 3rd MSS, when the 3rd MSS is more than a MSS, replaces the 3rd MSS in this TCPSYNACK, sends this TCPSYNACK message with a MSS。
Pass through said apparatus, the MSS consulted in TCP connection establishment process can adjust in real time according to wireless environment situation at that time, after TCP connection establishment, the application layer data segment length of opposite end is issued less than the MSS size after adjusting in the two ends that TCP connects, to adapt to wireless environment at that time, thus solving under the environment of difference signal, the higher problem of packet loss of transmission, decrease packet loss, improve the stability that under difference signal environment, TCP connects, improve Consumer's Experience。
In the present embodiment, this device also includes: logging modle, the MSS after optimizing for real time record and renewal。
In the present embodiment, this acquisition module 20 includes: statistic unit, for the size of the real-time statistics bit error rate, the size of this bit error rate determines a MSS of optimization。
In the present embodiment, first monitors module 22 includes: interception unit, is used for intercepting upper layer application and accesses TCP connection request TCPSYN message produced by the Internet。
Additionally providing a kind of mobile terminal in the present embodiment, this mobile terminal can realize the connection processing method of above-mentioned TCP, and includes any one device in above-described embodiment, and this device can realize the connection processing method of above-mentioned TCP。
Below in conjunction with preferred embodiment and embodiment, the present invention is described in detail。
This preferred embodiment proposes a kind of optimization method, it is possible to reduce packet loss, improves the stability that under difference signal environment, TCP connects, and promotes Consumer's Experience。
The method of this preferred embodiment includes:
In normal use procedure, the bit error rate is added up by mobile terminal wireless side in real time, and according to Bit Error Ratio Measurement result, calculates the size obtaining a MSS (MaximumSegmentSize) optimized, be designated as MSS_0。
Mobile terminal intercepts upper layer application and accesses TCP connection request message TCPSYN produced by the Internet, obtains the MSS in wherein Options field, is designated as MSS_1。
Mobile terminal compares the MSS_0 size with MSS_1, if MSS_0 < MSS_1, then the MSS value in TCPSYN message replaces with the value of MSS_0, is then sent by this message。
Mobile terminal monitors the TCP connection response message TCPSYNACK that opposite end returns, and obtains the MSS in wherein Options field, is designated as MSS_2。
Mobile terminal compares the MSS_0 size with MSS_2, if MSS_0 < MSS_2, then the MSS value in TCPSYNACK message replaces with the value of MSS_0, then message is issued upper strata。
The MSS consulted in above-mentioned processing procedure, TCP connection establishment process can adjust in real time according to wireless environment situation at that time。After TCP connection establishment, the application layer data segment length of opposite end is issued less than the MSS size after adjusting in the two ends that TCP connects, and to adapt to wireless environment at that time, reduces the generation of packet loss。
The main thought of this preferred embodiment is according to the bit error rate under different radio environment, the MSS consulted in TCP connection procedure to be adjusted。Below in conjunction with accompanying drawing, the present invention is further described。
Fig. 3 is that mobile terminal forms structural representation according to the preferred embodiment of the invention。As it is shown on figure 3, described mobile terminal comprises wireless module, MSS computing module, MSS logging modle, TCP connects monitoring module, TCP connects processing module。Wherein:
Wireless module, except realizing relevant radio function, also completes the real-time statistics to the wireless side bit error rate；
MSS computing module, according to the bit error rate size of wireless side, calculates and obtains a MSS optimized, and the bit error rate of wireless side is more low, then calculated MSS is more big；
MSS logging modle completes the record of the MSS to real-time optimization；
TCP connects monitoring module to be responsible for monitoring TCP connection request and response, i.e. TCPSYN message and TCPSYNACK message；
TCP connects processing module to be responsible for TCP connection request and response are processed, and mainly the MSS field in association message is processed。
Fig. 4 is the schematic flow sheet of TCP connective stability method according to the preferred embodiment of the invention。As shown in Figure 4, the method for the present invention comprises the steps of
S401, wireless module calculates the bit error rate of wireless side in real time；
S402, the MSS computing module bit error rate according to wireless side, calculates the MSS obtaining optimizing, and the bit error rate of wireless side is more low, then calculated MSS is more big, is 1460 to the maximum；
MSS value after S403, MSS logging modle real time record and renewal optimization, then turns S401。
S404, TCP connect the TCP message monitoring module monitoring upper layer application generation。
S405, TCP connect monitoring module and listen to TCP connection request message TCPSYN；
S406, TCP connect the MSS value monitored in module acquisition TCPSYN, are designated as MSS_1；
S407, obtains the MSS value in MSS logging modle, is designated as MSS_0；
S408, compares the size of MSS_0 and MSS_1, if MSS_0 < MSS_1, then performs S409, otherwise performs S410；
S409, replaces with MSS_0 by the MSS value in TCPSYN message；
S410, sends above-mentioned TCPSYN message；
S411, monitors and receives TCP connection response message TCPSYNACK；
S412, obtains the MSS value in TCPSYNACK message, is designated as MSS_2；
S413, compares the size of MSS_0 and MSS_2, if MSS_0 < MSS_2, then performs S414, otherwise performs S415；
S414, replaces with MSS_0 by the MSS value in TCPSYNACK message；
S415, issues upper strata by the TCPSYNACK message after processing, then performs S404；
Above preferred embodiment realizes simple, pertains only to the process of software aspects, it is not necessary to newly-increased any hardware costs。
The method of the application of the invention, can according to current wireless conditions, the instant data package size to transmitting in newly-established TCP connection is adjusted, to reduce the bit error rate of wireless side, thus the packet loss reduced in TCP connection, and then improve the TCP stability connected, improve mobile terminal performance under difference signal and Consumer's Experience。
Obviously, those skilled in the art should be understood that, each module of the above-mentioned present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or it is distributed on the network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, can be stored in storage device is performed by calculation element, and in some cases, shown or described step can be performed with the order being different from herein, or they are fabricated to respectively each integrated circuit modules, or the multiple modules in them or step are fabricated to single integrated circuit module realize。So, the present invention is not restricted to the combination of any specific hardware and software。
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations。All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention。
Claims (9)
1. the processing method that a TCP connects, it is characterised in that including:
Obtain wireless environment condition information, it is determined that the first maximum message segment segment length MSS of optimization；
Monitor the TCPSYN message of TCP connection request, it is determined that the 2nd MSS in described TCPSYN；
A relatively described MSS and described 2nd MSS, when described 2nd MSS is more than a described MSS, replaces the 2nd MSS in described TCPSYN with a described MSS, sends described TCPSYN message；
Monitor TCP connection response TCPSYNACK message, it is determined that the 3rd MSS of described TCPSYNACK message；
A relatively described MSS and described 3rd MSS, when described 3rd MSS is more than a described MSS, replaces the 3rd MSS in described TCPSYNACK with a described MSS, sends described TCPSYNACK message。
2. method according to claim 1, it is characterised in that obtain wireless environment condition information, it is determined that include after the first maximum message segment segment length MSS of optimization:
A described MSS after real time record and renewal optimization。
3. method according to claim 1, it is characterised in that obtain wireless environment condition information, it is determined that the first maximum message segment segment length MSS of optimization includes:
The size of the real-time statistics bit error rate, is determined a described MSS of optimization by the size of the described bit error rate。
4. the method according to any one of claims 1 to 3, it is characterised in that the TCPSYN message monitoring TCP connection request includes:
Intercept upper layer application and access TCP connection request TCPSYN message produced by the Internet。
5. the process device that a TCP connects, it is characterised in that including:
Acquisition module, is used for obtaining wireless environment condition information, it is determined that the first maximum message segment segment length MSS of optimization；
First monitors module, for monitoring the TCPSYN message of TCP connection request, it is determined that the 2nd MSS in described TCPSYN；
First comparison module, for a relatively described MSS and described 2nd MSS, when described 2nd MSS is more than a described MSS, replaces the 2nd MSS in described TCPSYN with a described MSS, sends described TCPSYN message；
Second monitors module, for TCP connection response TCPSYNACK message, it is determined that the 3rd MSS of described TCPSYNACK message；
Second comparison module, for a described MSS and described 3rd MSS, when described 3rd MSS is more than a described MSS, replaces the 3rd MSS in described TCPSYNACK with a described MSS, sends described TCPSYNACK message。
6. device according to claim 5, it is characterised in that including:
Logging modle, the described MSS after optimizing for real time record and renewal。
7. device according to claim 5, it is characterised in that described acquisition module includes:
Statistic unit, for the size of the real-time statistics bit error rate, is determined a described MSS of optimization by the size of the described bit error rate。
8. the device according to any one of claim 5 to 7, it is characterised in that first monitors module includes:
Interception unit, is used for intercepting upper layer application and accesses TCP connection request TCPSYN message produced by the Internet。
9. a mobile terminal, it is characterised in that including:
Device described in any one of claim 5 to 8。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410682918.9A CN105704084A (en) | 2014-11-24 | 2014-11-24 | Processing method of TCP connection, processing device and mobile terminal |
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| CN201410682918.9A CN105704084A (en) | 2014-11-24 | 2014-11-24 | Processing method of TCP connection, processing device and mobile terminal |
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| CN105704084A true CN105704084A (en) | 2016-06-22 |
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| WO2018145481A1 (en) * | 2017-02-13 | 2018-08-16 | 华为技术有限公司 | Method and device for transmitting packet |
| CN111163037A (en) * | 2018-11-07 | 2020-05-15 | 大唐移动通信设备有限公司 | IP fragmentation optimization method and device |
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