CN1705308A - User plane data processing method - Google Patents
User plane data processing method Download PDFInfo
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- CN1705308A CN1705308A CN 200410042692 CN200410042692A CN1705308A CN 1705308 A CN1705308 A CN 1705308A CN 200410042692 CN200410042692 CN 200410042692 CN 200410042692 A CN200410042692 A CN 200410042692A CN 1705308 A CN1705308 A CN 1705308A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
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Abstract
This invention discloses a user data process method, which contains 1, judging each data package in IP data steam sent form high layer of empty command protocol stack, if the received IP data package is TCP ACK data package, then executing step 2, if the received data package is not TCP ACK, then executing step 3, 2, making PDCP layer function process to IP data package and ending current process, 3, making flow control to IP data package and then executing 2,, said invention can precedential send TCP ACK data package to opposite part in preserving original TCP/IP and universal mobile telecommunication system (UMTS) data transmission system base, to reduce data package reversion time delay and keep stable data transmission rate.
Description
Technical field
The present invention relates to a kind of data processing technique, particularly a kind of user face data processing method.
Background technology
At present, along with development of Communication Technique, the particularly development of 3G technology, data, services will become one of important service of mobile communication system.This wireless data service will be provided to the seamless link of Internet for the terminal use, can allow the user obtain information more easily by wireless system.The existing Internet network mainly carries out networking and finishes transfer of data by transmission control protocol (TCP)/Internet protocol (IP), but a lot of performance of TCP in wireless transmission that studies show that is not very desirable.
The protocal layers of eating dishes without rice or wine are divided into user plane and control plane, are called as user face data in the data of user-plane transmissions.When TCP transmission mechanism and global system for mobile communications (UMTS) when combining, the user face data of eating dishes without rice or wine is divided into affirmation (ACK) packet of two classes: TCP and the ack msg bag of non-TCP.According to the transmission feature of eating dishes without rice or wine of existing TCP transmission mechanism and UMTS, when uplink and downlink are carried out user plane data transfer simultaneously, particularly in non-symmetrical service, eat dishes without rice or wine usually can not reach gratifying effect with the cooperation of TCP transmission mechanism.Such as: after descending transmit leg issues the tcp data bag, reply mechanism according to the ack msg bag of TCP, descending recipient need return the ack msg bag and give transmit leg, and transmit leg could confirm whether the recipient receives this tcp data bag then; Because during bidirectional data transfers, up transmit leg is that above-mentioned descending recipient also can send the tcp data bag simultaneously, therefore, up tcp data bag just may be in the transmission of the ack msg bag of eating dishes without rice or wine to block descending tcp data bag, if the time delay that causes the ack msg bag to reply is bigger, transmit leg can think that the tcp data bag do not deliver to and retransmit, make and be blocked in the packet of eating dishes without rice or wine and increase greatly, the time delay that the ack msg bag is replied further increases, transmit leg even can start the congestion mechanism transmission rate that slows down according to TCP, thus whole user plane data transfer efficient is reduced greatly.
At present, just how to improve the problem of TCP user plane data transfer performance on wireless network and asymmetrical network, agreement RFC3481 has provided relevant strategy respectively with RFC3449, comprise: the tcp window size of adjusting transmit leg and recipient, increase the initialization window of transmit leg, the transmission rate of restriction transmit leg, adjust the size of largest data transfer unit (MTU), enable the path mtu testing mechanism at transmit leg, enable selectivity ACK at transmit leg and recipient, enable direct congestion notification mechanism, enabling time is stabbed mechanism, do not use the header compression algorithm of TCP/IP, revise the recipient and return ACK mechanism etc.
These technical schemes all are existing TCP/IP to be carried out the corresponding adjustment of parameter and mechanism, have improved the performance of the user plane data transfer of TCP in wireless network to a certain extent.But, these measures are inreal to solve when uplink and downlink are carried out transfer of data simultaneously in the wireless network, the interactional problem of uplink and downlink, these adjustment can not guarantee that user face data stream eating dishes without rice or wine to keep stable speed, will certainly be in the buffer memory and the burst of eating dishes without rice or wine to produce data, thereby cause TCP to enable congestion mechanism, cause the instability of message transmission rate.In addition, above adjustment can not produce unified useful effect, adopt different parameter combinations just can reach certain effect at different applied environments often, and in the wireless network of reality is used, the main frame of last each service node of Internet is uncontrollable, perhaps another IP terminal is a mobile phone, and the TCP/IP parameter of uncontrollable main frame is adjusted or revised the TCP/IP parameter by common cellphone user all is unpractical, is not suitable for the practical application of network.And wherein some measure need redesign and realize TCP/IP, can have influence on the transfer of data of existing network, is not a kind of feasible way for existing network.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of user face data processing method, on the basis that keeps original TCP/IP and UMTS data transmission mechanism, preferentially the ack msg bag with TCP sends to the other side, thereby reduce the answer time delay of the ack msg bag of TCP, guarantee stable user plane data transfer speed.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of user face data processing method, comprise the steps:
A. each packet from the air protocol stack IP traffic that issues on the middle and senior level is judged: whether the current IP packet that receives is the ack msg bag of TCP, is IP packet execution in step b of the ack msg bag of TCP to all; To all is not the IP packet execution in step c of the ack msg bag of TCP;
B. the IP packet is carried out the function treatment of PDCP (PDCP) layer, finish current handling process;
C. the IP packet is carried out Flow Control, change step b again over to.
Among the step a, described is further to comprise before the IP packet execution in step b of ack msg bag of TCP to all: with all is that the IP package identification of the ack msg bag of TCP is a high priority;
And among the step c, the method for described Flow Control is: with all is not that the IP package identification of the ack msg bag of TCP is a low priority;
Among the step b, described packet is carried out further comprising after the function treatment of PDCP layer:
At Radio Link control (RLC) protocol layer the RLC packet that each preparation issues is judged: whether the RLC packet that current preparation issues is the high packet of priority, the RLC allocation of packets that all priority are high finishes current handling process to the high logic channel of priority; With all priority be not high RLC allocation of packets to the low logic channel of priority, finish current handling process.
Among the step b, before described judgement, further comprise: rlc layer carries out the rlc layer function treatment to each the PDCP packet that receives.
Wherein, this method further comprises: media interviews control MAC protocol layer is according to the data transmission parameters of eating dishes without rice or wine that monitors obtain eating dishes without rice or wine transfer of data relevant information and report the PDCP layer;
Among the step c, described method of carrying out Flow Control is:
C1.PDCP layer buffer memory IP packet;
Whether the transfer of data relevant information judgement of eating dishes without rice or wine that the c2.PDCP layer reports according to the MAC layer eats dishes without rice or wine congested, if finish current handling process; Otherwise execution in step c3;
The c3.PDCP layer reads the IP packet and is sent to the PDCP functional processing module from buffer memory.
Wherein, the described transfer of data relevant information of eating dishes without rice or wine is the congested indication of eating dishes without rice or wine;
The method of the described transfer of data relevant information that obtains eating dishes without rice or wine is: the MAC layer uses the data transmission parameters of eating dishes without rice or wine that monitors to calculate, according to the result of calculation congested indication that obtains eating dishes without rice or wine;
Among the step c2, the described judgement congested method of eating dishes without rice or wine is: judge and eat dishes without rice or wine congestedly to indicate whether effectively, if it is congested to eat dishes without rice or wine; Otherwise it is not congested to eat dishes without rice or wine.
Wherein, the described transfer of data relevant information of eating dishes without rice or wine is the data transmission parameters of eating dishes without rice or wine that monitors;
Among the step c2, the described judgement congested method of eating dishes without rice or wine is: the data transmission parameters of eating dishes without rice or wine that described PDCP layer uses the MAC layer to report calculates, again according to result of calculation judge eat dishes without rice or wine whether congested.
Wherein, the described transfer of data relevant information of eating dishes without rice or wine is the speed of eating dishes without rice or wine;
Among the step c3, described being sent as: speed sends the IP packet to eat dishes without rice or wine.
Among the step c, described method of carrying out Flow Control is:
C1.PDCP layer buffer memory IP packet;
The transfer of data relevant information of eating dishes without rice or wine that the c2.PDCP layer reports according to the MAC layer is determined the transmission rate of IP packet;
The c3.PDCP layer reads the IP packet and sends the IP packet to the PDCP functional processing module with the determined speed of step c2 from buffer memory.
Wherein, the described transfer of data relevant information of eating dishes without rice or wine is the transmission rate of IP packet;
Described MAC layer obtain the eating dishes without rice or wine method of transfer of data relevant information is: the MAC layer uses the data transmission parameters of eating dishes without rice or wine that monitors to calculate, and obtains the transmission rate of IP packet according to result of calculation;
Among the step c2, the method for the transmission rate of described definite IP packet is: the IP data package transmission velocity that the PDCP layer reports with the MAC layer is as the transmission rate of IP packet.
Wherein, the described transfer of data relevant information of eating dishes without rice or wine is the data transmission parameters of eating dishes without rice or wine that monitors;
Among the step c2, the method for the transmission rate of described definite IP packet is: the data transmission parameters of eating dishes without rice or wine that the PDCP layer uses the MAC layer to report calculates, and determines the transmission rate of IP packet according to result of calculation.
Among the step a, described the IP packet is analyzed before, further comprise: be connected portable machine in the user equipment (UE) side respectively with the network host side, intercept and capture IP traffic from UE and network host respectively by each portable machine; Described analysis to the IP packet is carried out in portable machine.
Among the step a, before carrying out described step b, further comprise: the PDCP layer that all qualified IP packets is sent it back current UE that connects of each portable machine or network host respectively.
Wherein, this method further comprises: the UE of current connection or the speed of eating dishes without rice or wine of network host are set respectively in described each portable machine separately;
Among the step c, described method of carrying out Flow Control is: each portable machine carries out buffer memory to the IP packet, and with the set speed of eating dishes without rice or wine separately the IP packet of buffer memory is sent it back the UE of current connection separately or the PDCP layer of network host.
By such scheme as can be seen, key of the present invention is: the TCP packet header of the IP packet that issues for the IP layer is analyzed; Then, the ack msg bag of TCP is directly sent, and the ack msg bag of non-TCP is carried out issuing after the Flow Control again; Perhaps, the ack msg bag of TCP is designated the high packet of priority, and in the priority of rlc layer recognition data bag, the allocation of packets that priority is high is to the high logic channel of priority.Thereby the ack msg bag of TCP can preferentially be issued to and eat dishes without rice or wine.
In sum, user face data processing method provided by the present invention, some processing only between the function treatment of original protocal layers of eating dishes without rice or wine, have been added for data packet analysis and Flow Control, therefore, the inventive method can be on the basis that keeps original TCP/IP and UMTS data transmission mechanism, preferentially issue the ack msg bag of TCP, substantially avoided the ack msg bag of TCP being eated dishes without rice or wine by the ack msg packet congestion of non-TCP, reduce the answer time delay of the ack msg bag of TCP, thereby improved the transmission performance of user face data.
Description of drawings
Fig. 1 is first preferred embodiment handling process schematic diagram of the inventive method;
Fig. 2 is protocal layers distributed architecture and a corresponding relation schematic diagram between UE and the UTRAN in the air protocol stack;
Fig. 3 is second preferred embodiment handling process of the inventive method schematic diagram;
Fig. 4 is the 3rd preferred embodiment handling process schematic diagram of the inventive method.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Fig. 1 is first preferred embodiment handling process schematic diagram of the inventive method.In the present embodiment, be designated height at PDCP (PDCP) layer for the ack msg packet priority of each TCP that sends from the IP layer, and at rlc layer priority of data packets is resolved, with the ack msg of the TCP of the high priority high logic channel of priority that is responsible for assigning.As shown in Figure 1, its concrete treatment step is as follows:
Step 101:PDCP layer receives the high-rise IP traffic that issues, and judges whether the IP packet of current reception is the ack msg bag of TCP, if change step 102 over to; Otherwise, change step 103 over to.
The user face protocol stack of wherein, eating dishes without rice or wine is divided into: PDCP layer, Radio Link control (RLC) protocol layer, media interviews control (MAC) protocol layer and physics (PHY) layer.Fig. 2 is protocal layers distributed architecture and a corresponding relation schematic diagram between user terminal in the air protocol stack (UE) and the UTRAN.Because any transfer of data all will depend on the support of each layer protocol in the communication system, so, based on above-mentioned protocol stack structure, in the transmitting uplink data process, the IP packet that the UE side is issued high level by the PDCP layer earlier carries out mailing to rlc layer after the head compression is handled; Rlc layer is implemented to mail to the MAC layer after burst and the cascade; The MAC layer is selected suitable transformat combination (TFC) according to the transmission format composite set (TFCS) of current data packet and configuration; Carry out being sent to the UTRAN side after the coded modulation according to selected TFC by the PHY layer at last; UTRAN side order by PHY layer, MAC layer, rlc layer and PDCP layer do demodulation coding, separate combination, recombination data and decompress after, obtain the IP packet that UE sends.Descending transfer of data is opposite with described transmitting uplink data process, and the UE described in the transmitting uplink data process is replaced with UTRAN, described UTRAN is replaced with UE get final product.
Because the PDCP layer finishes mainly that converging of data sends and the compression function of TCP/IP data packet head, at this one deck, at first will read the data packet head of the IP packet that high level issues, the compression processing of carrying out the TCP/IP data packet head then is sent to rlc layer again.Whether therefore, the TCP of packet and IP data packet head all are visible here, can the judgment data bag be the ack msg bag of TCP in the process in PDCP layer reading of data packet header.
By above description for protocal layers in the air protocol stack as seen, the PDCP layer can both be analyzed and handle in UTRAN side and UE side the IP packet, therefore, whether the PDCP layer can judge effectively whether this packet is the ack msg bag of TCP according to the value of the flag bit of sign ack msg bag in the tcp data packet header in the IP packet after receiving the IP packet.
Step 102:PDCP layer is the high packet of priority with this package identification, execution in step 104.
Step 103:PDCP layer is the low packet of priority with this package identification.
Step 104:PDCP layer carries out prior function to this packet to be handled, and sends it to rlc layer again.Here, described existing capability is treated to the compression processing of reading of data packet header TCP/IP data packet head afterwards.
Step 105:RLC layer receives the PDCP data packet analysis priority of data packets of PDCP layer transmission and carries out existing RLC function treatment.Existing RLC function treatment described here is packet to be implemented processing such as burst and cascade.
Because, the PDCP layer is to issue packet by RLC-AM-DATA-Req primitive to give rlc layer, rlc layer receives after the packet at first by analyzing the primitive that high level issues to come packet is handled accordingly, therefore in described step 102 or step 103, the PDCP layer comes priority of data packets is identified by the cell that adds an identification data packet priority in this primitive; In described step 105, rlc layer is learnt this priority of data packets by analyzing this primitive then, if the packet priority cell in the primitive shows the priority height, then this packet is the high packet of priority; Otherwise this packet is the low packet of priority.Here, the present invention can adopt the method for multiple sign and identification priority to realize, but adopts diverse ways not influence validity of the present invention.
Step 106:RLC layer judges whether this packet is the high packet of priority, if change step 107 over to; Otherwise change step 108 over to.Because rlc layer has been learnt priority of data packets in step 105, therefore can judge priority of data packets here.
Step 107:RLC layer sends to the high logic channel of priority with this packet, finishes to work as pre-treatment.
Step 108:RLC layer is sent to the low logic channel of priority with this packet, finishes to work as pre-treatment.
Here, step 106 to the described packet of step 108 is the RLC packet.
Because in present air protocol standard, rlc layer can corresponding two logic channels, the MAC layer logic channel that at first dispatching priority is high when dispatching according to priority of logical channels handled.Therefore, present embodiment is designated the high packet of priority with the ack msg bag of TCP in described step 102, and in described step 107 is that the ack msg bag of high TCP is sent to the high logic channel of priority with priority tag.Like this, eat dishes without rice or wine preferentially to send the ack msg bag of TCP, guarantee that the TCP transmit leg can obtain the ack msg bag in less time delay.
Step 101 is described to step 108 to be processing for a packet, in the present embodiment each is all carried out above-mentioned processing from the packet that high level is issued to PDCP layer and rlc layer successively, and, PDCP layer, rlc layer in UE side of eating dishes without rice or wine and UTRAN side all carry out the described processing of Fig. 1, the ack msg Bao Jun of each TCP that issues in UE side and UTRAN side will be assigned to the high logic channel of priority like this, thereby preferentially processed.
Such scheme, by data stream being handled at PDCP layer and rlc layer, make the MAC layer can preferentially send the ack msg bag of TCP, basically guaranteed when uplink and downlink are all carried out transfer of data, the ack msg Bao Buhui of TCP is blocked in by the ack msg bag packet of non-TCP and eats dishes without rice or wine, reduced the time delay that the ack msg bag of TCP is replied, made the TCP transmit leg enable congestion mechanism thereby can avoid the transfer of data of TCP layer to enter congestion state substantially.Like this, guaranteed the efficient of up-down bidirectional transfer of data, eated dishes without rice or wine and the data transmission performance of TCP transmission mechanism when matching thereby improved greatly.
Fig. 3 is second preferred embodiment handling process of the inventive method schematic diagram.In the present embodiment, the PDCP layer directly carries out prior function to the ack msg bag of TCP to be handled, and simultaneously, the transfer of data relevant information of eating dishes without rice or wine that the PDCP layer reports according to the MAC layer is carried out carrying out prior function again after the Flow Control to the ack msg bag of non-TCP and handled.As shown in Figure 3, its concrete treatment step is as follows:
Step 301:PDCP layer receives the one piece of data stream that the IP layer sends, each IP packet in the data flow is analyzed, and judge: whether the IP packet of current reception is the ack msg bag of TCP, to all qualified IP packets ack msg bag execution in step 305 that is TCP; To all ineligible IP packets is the ack msg bag execution in step 302 of non-TCP.
Step 302:PDCP layer carries out buffer memory to the IP packet.
It is congested whether the transfer of data relevant information judgement of eating dishes without rice or wine that step 303:PDCP layer reports according to the MAC layer eats dishes without rice or wine to have, if having, finishes to work as pre-treatment; Otherwise execution in step 304.
Step 304:PDCP layer reads the IP packet of institute's buffer memory and is sent to the PDCP functional processing module.Here, described IP packet can comprise step 302 cached data packet, also can comprise the IP packet of having stored before the PDCP layer.Wherein, the transfer of data relevant information of eating dishes without rice or wine that the MAC layer reports the PDCP layer can also comprise the speed of eating dishes without rice or wine, the speed of eating dishes without rice or wine that the PDCP layer can report according to the MAC layer, the IP packet is sent to the PDCP functional processing module with the speed of eating dishes without rice or wine, thereby the data rate that arrival is eated dishes without rice or wine mates substantially with the actual speed of eating dishes without rice or wine.
The step 302 of present embodiment to step 304, the ack msg bag that described IP packet is non-TCP.
Wherein, the MAC layer has the function of monitoring the data transmission parameters of eating dishes without rice or wine, and the inventive method has increased the processing that reports the transfer of data relevant information of eating dishes without rice or wine to give the PDCP layer in the MAC layer.Because, the MAC layer can monitor promptly the eat dishes without rice or wine data transmission parameters of eating dishes without rice or wine such as metadata cache amount of speed, rlc layer of the maximum transmission rate of current MAC layer, therefore, use these parameters can calculate the data cached time of short transmission of MAC layer, be the result of calculations such as shortest time of packet at the rlc layer buffer memory, by these result of calculations just can adjudicate eat dishes without rice or wine whether congested.In the present embodiment, can obtain the shortest time of packet at the rlc layer buffer memory according to the metadata cache amount of eat dishes without rice or wine speed and rlc layer; Eat dishes without rice or wine whether to have congested according to this data pack buffer shortest time and the jamming judgment time threshold judgement set in advance again: if packet exceeds this jamming judgment time threshold in the shortest time of rlc layer buffer memory, then can adjudicate eat dishes without rice or wine congested; Otherwise it is not congested that judgement is eated dishes without rice or wine.Here, the setting of jamming judgment time threshold is relevant with current concrete type of service, whether judgement eats dishes without rice or wine to have congested specific algorithm that adopts and standard also to be not limited to a kind of, congested method does not belong to the problem of the present invention's design but the setting criterion of concrete jamming judgment time threshold and judgement are eated dishes without rice or wine, and does not therefore do detailed description.
In the present embodiment, the above-mentioned judgement congested calculating of eating dishes without rice or wine is carried out in the MAC layer, and the transfer of data relevant information of eating dishes without rice or wine that the MAC layer reports the PDCP layer is the congested indication of eating dishes without rice or wine, when the MAC layer eats dishes without rice or wine to take place when congested according to result of calculation judgement, the congested indication of will eating dishes without rice or wine of MAC layer is changed to effectively and reports the PDCP layer; When the MAC layer eats dishes without rice or wine not take place when congested according to result of calculation judgement, the congested indication of will eating dishes without rice or wine of MAC layer is changed to invalid and reports the PDCP layer.Then, the PDCP layer indicates whether according to eating dishes without rice or wine of reporting of MAC layer is congested effectively whether congested judgement eats dishes without rice or wine.Wherein, the above-mentioned judgement congested calculating of eating dishes without rice or wine also can be carried out in the PDCP layer, then to report the transfer of data relevant information of eating dishes without rice or wine of PDCP layer be the data transmission parameters of eating dishes without rice or wine that monitors to the MAC layer, calculated according to the data transmission parameters of eating dishes without rice or wine by the PDCP layer, whether judgement eats dishes without rice or wine to take place congested according to result of calculation again.Here, if the computational methods that adopt are: the metadata cache amount according to eat dishes without rice or wine speed and rlc layer obtains the shortest time of packet at the rlc layer buffer memory, whether then described result of calculation is the shortest time of packet at the rlc layer buffer memory, and described judgement is eated dishes without rice or wine, and whether congested method is: whether exceed the judgement of jamming judgment time threshold according to this data pack buffer shortest time and eat dishes without rice or wine to have congested; Because the present invention does not limit eat dishes without rice or wine congested specific algorithm and standard of judgement, therefore described result of calculation and decision method also are not limited to a kind of, for example: result of calculation can be parameters such as speed, indication, and decision method also can compare for the speed thresholding with result of calculation and setting or judge and indicate whether effectively or the like.
In addition, above-mentioned step 303 can also for: the information relevant with the transfer of data of eating dishes without rice or wine that the PDCP layer reports according to the MAC layer is determined the speed that the IP packet issues; Above-mentioned step 304 can for: the PDCP layer issues speed with the determined IP packet of step 303 IP is sent to the PDCP functional processing module.In step 303, the MAC layer can be determined the speed that issues of IP packet according to the data transmission parameters of eating dishes without rice or wine that monitors, and reports the PDCP layer, and then to report the transfer of data relevant information of eating dishes without rice or wine of PDCP layer be the speed that issues of IP packet to the MAC layer; Perhaps, the current data transmission parameters of eating dishes without rice or wine that the PDCP layer reports according to the MAC layer is determined the speed that issues of IP packet, and then to report the transfer of data relevant information of eating dishes without rice or wine of PDCP layer be the data transmission parameters of eating dishes without rice or wine that monitors to the MAC layer.
Usually, eat dishes without rice or wine to take place when congested in judgement, the issuing speed and can be decided to be a certain rate value of IP packet less than the current speed of eating dishes without rice or wine, thus the congestion situation of eating dishes without rice or wine is alleviated and final the elimination gradually, but the value of concrete speed is determined that by actual conditions the present invention does not limit; Eat dishes without rice or wine not take place when congested in judgement, the issuing speed and can be decided to be the current speed of eating dishes without rice or wine of IP packet makes to arrive the data rate of eating dishes without rice or wine and be complementary with the actual speed of eating dishes without rice or wine as far as possible like this, thus the raising data transmission efficiency.
Wherein, determine that the criterion that the IP packet issues speed has multiple, the issuing speed the congestion situation of eating dishes without rice or wine is eased of determined IP packet, perhaps eating dishes without rice or wine not take place the data transmission efficiency of eating dishes without rice or wine to be improved when congested, but specifically adopt which kind of criterion to determine that this issues speed and does not belong to emphasis of the present invention, is not described further here.
Step 305: the IP packet is carried out the PDCP function treatment, finish to work as pre-treatment.Here, described existing capability is treated to the compression of the TCP/IP data packet head after the reading of data packet header and handles, and the IP packet carries out existing corresponding subsequent processing through being issued to rlc layer after the PDCP function treatment, and finally is sent to and eats dishes without rice or wine.
The processing of one section IP traffic that above step 301 to the described PDCP of the being treated to layer of step 305 issues high level, each segment data stream that present embodiment issues for high level all can execution in step 301 to the described processing of step 305, and, PDCP layer in UE side of eating dishes without rice or wine and UTRAN side, rlc layer all carries out the described processing of Fig. 3, like this, the ack msg bag of each TCP that can issue high level at UE side and UTRAN side PDCP layer directly carries out existing P DCP function treatment, re-send to lower floor, thereby the ack msg bag of TCP can send to the TCP transmit leg of the ack msg bag of corresponding non-TCP with lower-delay, makes the speed of this TCP transmit leg keep stable; Simultaneously, the MAC layer continues to monitor the data transmission parameters of eating dishes without rice or wine and the transfer of data relevant information of will eating dishes without rice or wine reports the PDCP layer, the information that the PDCP layer can report according to the MAC layer is carried out Flow Control to the ack msg bag of the non-TCP that each high level issues, thereby data rate and the actual speed of eating dishes without rice or wine that arrival is eated dishes without rice or wine are mated substantially, and basic the assurance eats dishes without rice or wine congested situation not to take place.
Fig. 4 is the 3rd preferred embodiment handling process schematic diagram of the inventive method.In the present embodiment, utilization is intercepted and captured IP traffic with UE with the portable machine that the network host side is connected, after portable machine is analyzed the IP traffic of intercepting and capturing, directly send separately the ack msg bag of TCP back to connect UE and host's machine, the ack msg bag of non-TCP is carried out buffer memory and with the speed of eating dishes without rice or wine accordingly the ack msg bag of non-TCP sent it back UE and the network host that connects separately.As shown in Figure 4, its concrete treatment step is as follows:
The portable machine that step 401:UE side connects is intercepted and captured one section ip-layer flow from UE, each IP packet in the data flow is analyzed, and judge: whether the IP packet of current reception is the ack msg bag of TCP, portable machine sends it back UE with the IP packet that all meet this condition, and execution in step 404 again; All are not met the IP packet execution in step 402 of this condition.
Step 402: portable machine carries out buffer memory to the IP packet.The IP packet here is the ack msg bag of non-TCP.
Step 403: portable machine sends it back UE with the current speed of eating dishes without rice or wine with the IP packet of institute's buffer memory.Here, the described speed of eating dishes without rice or wine is the speed of eating dishes without rice or wine that sets in advance the UE of the current connection in portable machine.
Step 404: the PDCP layer by UE carries out existing P DCP function treatment to these IP packets, finishes to work as pre-treatment.Here, the IP packet carries out existing corresponding subsequent processing through being issued to rlc layer after the PDCP function treatment, and finally is sent to and eats dishes without rice or wine.
Above-mentioned steps 401 to step 404 is the flow chart of data processing at the portable machine of UE side connection, present embodiment also will connect portable machine in the network host side and carry out data processing, the handling process and the step 401 of the portable machine of connection main frame are basic identical to the described process of step 404, only need that the UE in the above-mentioned steps is replaced with network host and get final product; In addition, step 401 is to the described processing that is treated to one section IP traffic that portable machine issues the high level of being intercepted and captured of step 404, each segment data stream that present embodiment issues for the high level that intercepts in UE side and UTRAN side all can execution in step 401 to the described processing of step 404.
Therefore, in the present embodiment, the ack msg bag of the TCP that portable machine can issue each high level preferentially sends, and the ack msg bag of the non-TCP that each high level is issued carries out Flow Control, makes the ack msg bag of non-TCP send it back UE or network host with the current speed of eating dishes without rice or wine.Like this, avoided the ack msg of TCP to wrap in the ack msg packet congestion of eating dishes without rice or wine, the answer time delay of ack msg bag is significantly reduced, guaranteed the stable transmission rate of TCP transmit leg by non-TCP; And the ack msg bag to non-TCP carries out Flow Control, makes it send to lower floor with the current speed of eating dishes without rice or wine, and the data rate that arrival is eated dishes without rice or wine is basic consistent with the current actual speed of eating dishes without rice or wine, thereby has improved data transmission efficiency.
In sum, user face data processing method provided by the present invention, can eat dishes without rice or wine and the TCP transmission mechanism combines when carrying out transfer of data, preferentially the ack msg bag with TCP sends to pairing TCP transmit leg, the answer time delay of the ack msg bag of TCP is reduced greatly, guarantee stable user plane data transfer speed, thereby significantly improved the transmission performance of user face data.
Claims (13)
1, a kind of user face data processing method is characterized in that, comprises the steps:
A. each packet from the air protocol stack IP traffic that issues on the middle and senior level is judged: whether the current IP packet that receives is the affirmation ack msg bag of transmission control protocol TCP, is IP packet execution in step b of the ack msg bag of TCP to all; To all is not the IP packet execution in step c of the ack msg bag of TCP;
B. the IP packet is carried out the function treatment of PDCP PDCP layer, finish current handling process;
C. the IP packet is carried out Flow Control, change step b again over to.
2, method according to claim 1 is characterized in that,
Among the step a, described is further to comprise before the IP packet execution in step b of ack msg bag of TCP to all: with all is that the IP package identification of the ack msg bag of TCP is a high priority;
And among the step c, the method for described Flow Control is: with all is not that the IP package identification of the ack msg bag of TCP is a low priority;
Among the step b, described packet is carried out further comprising after the function treatment of PDCP layer:
At Radio Link control rlc protocol layer the RLC packet that each preparation issues is judged: whether the RLC packet that current preparation issues is the high packet of priority, the RLC allocation of packets that all priority are high finishes current handling process to the high logic channel of priority; With all priority be not high RLC allocation of packets to the low logic channel of priority, finish current handling process.
3, method according to claim 2 is characterized in that, among the step b, before described judgement, further comprises: rlc layer carries out the rlc layer function treatment to each the PDCP packet that receives.
4, method according to claim 1 is characterized in that,
This method further comprises: media interviews control MAC protocol layer is according to the data transmission parameters of eating dishes without rice or wine that monitors obtain eating dishes without rice or wine transfer of data relevant information and report the PDCP layer;
Among the step c, described method of carrying out Flow Control is:
C1.PDCP layer buffer memory IP packet;
Whether the transfer of data relevant information judgement of eating dishes without rice or wine that the c2.PDCP layer reports according to the MAC layer eats dishes without rice or wine congested, if finish current handling process; Otherwise execution in step c3;
The c3.PDCP layer reads the IP packet and is sent to the PDCP functional processing module from buffer memory.
5, method according to claim 4 is characterized in that,
The described transfer of data relevant information of eating dishes without rice or wine is the congested indication of eating dishes without rice or wine;
The method of the described transfer of data relevant information that obtains eating dishes without rice or wine is: the MAC layer uses the data transmission parameters of eating dishes without rice or wine that monitors to calculate, according to the result of calculation congested indication that obtains eating dishes without rice or wine;
Among the step c2, the described judgement congested method of eating dishes without rice or wine is: judge and eat dishes without rice or wine congestedly to indicate whether effectively, if it is congested to eat dishes without rice or wine; Otherwise it is not congested to eat dishes without rice or wine.
6, method according to claim 4 is characterized in that,
The described transfer of data relevant information of eating dishes without rice or wine is the data transmission parameters of eating dishes without rice or wine that monitors;
Among the step c2, the described judgement congested method of eating dishes without rice or wine is: the data transmission parameters of eating dishes without rice or wine that described PDCP layer uses the MAC layer to report calculates, again according to result of calculation judge eat dishes without rice or wine whether congested.
7, method according to claim 4 is characterized in that,
The described transfer of data relevant information of eating dishes without rice or wine is the speed of eating dishes without rice or wine;
Among the step c3, described being sent as: speed sends the IP packet to eat dishes without rice or wine.
8, method according to claim 4 is characterized in that,
Among the step c, described method of carrying out Flow Control is:
C1.PDCP layer buffer memory IP packet;
The transfer of data relevant information of eating dishes without rice or wine that the c2.PDCP layer reports according to the MAC layer is determined the transmission rate of IP packet;
The c3.PDCP layer reads the IP packet and sends the IP packet to the PDCP functional processing module with the determined speed of step c2 from buffer memory.
9, method according to claim 8 is characterized in that,
The described transfer of data relevant information of eating dishes without rice or wine is the transmission rate of IP packet;
Described MAC layer obtain the eating dishes without rice or wine method of transfer of data relevant information is: the MAC layer uses the data transmission parameters of eating dishes without rice or wine that monitors to calculate, and obtains the transmission rate of IP packet according to result of calculation;
Among the step c2, the method for the transmission rate of described definite IP packet is: the IP data package transmission velocity that the PDCP layer reports with the MAC layer is as the transmission rate of IP packet.
10, method according to claim 8 is characterized in that,
The described transfer of data relevant information of eating dishes without rice or wine is the data transmission parameters of eating dishes without rice or wine that monitors;
Among the step c2, the method for the transmission rate of described definite IP packet is: the data transmission parameters of eating dishes without rice or wine that the PDCP layer uses the MAC layer to report calculates, and determines the transmission rate of IP packet according to result of calculation.
11, method according to claim 1 is characterized in that,
Among the step a, described the IP packet is analyzed before, further comprise: be connected portable machine in the user equipment (UE) side respectively with the network host side, intercept and capture IP traffic from UE and network host respectively by each portable machine; Described analysis to the IP packet is carried out in portable machine.
12, method according to claim 11 is characterized in that, among the step a, before carrying out described step b, further comprises: the PDCP layer that all qualified IP packets is sent it back current UE that connects of each portable machine or network host respectively.
13, method according to claim 11 is characterized in that,
This method further comprises: the UE of current connection or the speed of eating dishes without rice or wine of network host are set respectively in described each portable machine separately;
Among the step c, described method of carrying out Flow Control is: each portable machine carries out buffer memory to the IP packet, and with the set speed of eating dishes without rice or wine separately the IP packet of buffer memory is sent it back the UE of current connection separately or the PDCP layer of network host.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410042692 CN100493081C (en) | 2004-05-31 | 2004-05-31 | User plane data processing method |
| PCT/CN2005/000755 WO2005117395A1 (en) | 2004-05-31 | 2005-05-30 | Method for processing the data of the user surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410042692 CN100493081C (en) | 2004-05-31 | 2004-05-31 | User plane data processing method |
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| CN1705308A true CN1705308A (en) | 2005-12-07 |
| CN100493081C CN100493081C (en) | 2009-05-27 |
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| CN 200410042692 Expired - Fee Related CN100493081C (en) | 2004-05-31 | 2004-05-31 | User plane data processing method |
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| WO (1) | WO2005117395A1 (en) |
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Also Published As
| Publication number | Publication date |
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| CN100493081C (en) | 2009-05-27 |
| WO2005117395A1 (en) | 2005-12-08 |
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