CN102625363A

CN102625363A - Mobile evolved packet network system

Info

Publication number: CN102625363A
Application number: CN2011104080730A
Authority: CN
Inventors: 汪军
Original assignee: ZTE Corp
Current assignee: Nanjing Zhongxing Software Co Ltd
Priority date: 2011-12-09
Filing date: 2011-12-09
Publication date: 2012-08-01
Anticipated expiration: 2031-12-09
Also published as: CN102625363B

Abstract

The invention discloses a mobile evolved packet network system comprising a base station which is connected with user terminals and used for receiving messages and first service requests from the user terminals, an MME (Microsoft Mobile Explorer) which is connected with the base station and used for receiving the first service requests through the base station and generating second service requests related to the first service requests, an OPENFLOW controller which is connected with the MME and used for receiving the second service requests and generating message forwarding commands based on the second service requests, and forwarding face equipment which is connected with the OPENFLOW controller and the base station and used for forwarding the messages under the control of the message forwarding commands.

Description

A kind of mobile grouping field network system

Technical field

The present invention relates to control retransmission technique, particularly a kind of mobile grouping field network system.

Background technology

3GPP (3rd Generation Partner Project, 3G technology standard mechanism) the R8 stage has been introduced LTE (Long Term Evolution, Long Term Evolution) technology in wireless side; Simultaneously core net has been carried out design again; Be referred to as EPC (Evolved Packet Core, packet domain core network), EPC comprises MME, SGW (ServingGateway; Gateway), PGW network elements such as (PDN Gateway, public Packet Based Network gateways).

EPC is the same with most of networks; If operator need realize new function; Then need demand be proposed to the equipment supplier; The equipment supplier often needs redaction of issue in about 1 year through flow processs such as planning, research and development, tests, can formally use via the network access testing of operator about 1 year.If this wherein new function relates to the modification of external interface; Also need arrive 3GPP/IETF and carry out standardization; This needs the additional criteria time of other 1-2, and it is long to expend time in, and for operator; The End-Customer demand that it faces is variation and changeable, and above-mentioned very long new technology importing process then can't satisfy the changeable demand of client.

For the equipment supplier, the R&D costs of above-mentioned functions exploitation are high on the other hand.

If can implementation platformization, general EPC such as SGW/PGW transmit face equipment, support the quick function exploitation can greatly reduce R&D costs.

Summary of the invention

In view of this; The present invention provides a kind of mobile grouping field network system; Introduce in the EPC network through new control being transmitted the separated network model,, transmit face equipment and transmit and order and E-Packet according to what controller issued fully through forwarding face equipment SGW and the PGW in the Open Flow controller control EPC network; Controller adopts open system to make up simultaneously; Make the realization of new demand can be directly on the controller of concentrating Rapid Realization, the SGW/PGW that need not to upgrade etc. transmit the face hardware device, have solved in the prior art the new function of exploitation EPC network and have introduced excessive cycle; And the technical problem that R&D costs are high has and can support quick function exploitation and the technique effect that greatly reduces R&D costs.

On the one hand, the present invention provides a kind of mobile grouping field network system, comprising: the base station, be connected with user terminal, and be used to receive the message and first service request that said user terminal sends; MME is connected with said base station, is used for receiving said first service request through said base station, and generation second service request relevant with said first service request; The OPENFLOW controller is connected with said MME, is used to receive said second service request, and generates message forwarding instruction based on second service request; Forwarding face equipment is connected with said OPENFLOW controller and said base station, is used for transmitting under the control of instruction at said message, and said message is transmitted.

Optional, said second service request is bearer service request and service switchover request.

Optional, said forwarding face equipment specifically comprises SGW and PGW.

Optional, said OPENFLOW controller specifically comprises:

First distribution module is used for based on said bearer service request, for said user terminal distributes corresponding SGW and corresponding PGW;

Second distribution module; Be used for SGW based on said correspondence; Distribute the TEID on the SGW of said correspondence for said user terminal or user conversation, and, be the 2nd TEID on the PGW of said user terminal or the said correspondence of said user conversation base station assigns based on the PGW of said correspondence;

First generation module; Be used to receive the operational order that includes the 3rd TEID that obtains based on a said TEID that sends by said MME; And according to the said operational order that includes the 3rd TEID; With a said TEID,, generate respectively corresponding to the forwarding instruction of SGW with corresponding to the forwarding of PGW and instruct with said the 2nd TEID and QoS information.

Optional, corresponding to the forwarding instruction of SGW, specifically comprise SetTEID instruction or push Header instruction in said first generation module.

Optional, corresponding to the forwarding instruction of PGW, specifically comprise the 2nd SetTEID instruction in said first generation module, or the 2nd push Header instruction, or pop Header instruction.

Optional, said forwarding face equipment specifically comprises: determination module is used for confirming that said message is user side message or network side message; First forwarding module; Be used for when definite said message is the user side message; The SGW of said correspondence adopts said Set TEID instruction that the TEID of said user side header is revised the 2nd TEID on the PGW that becomes said correspondence, and said user side message is forwarded among the PGW of said correspondence; Second forwarding module; The PGW that is used for said correspondence receives said user side message; And adopt said pop Header instruction to peel off said user side header, and to said user side message carry out the QoSMark processing with or carry out being forwarded to the external IP network after NAT handles.

Optional; Said forwarding face equipment specifically also comprises: the 3rd forwarding module; Be used for when definite said message is the network side message, after the PGW of said correspondence receives said network side message, use the said network side header of the 2nd pushHeader instruction encapsulation; And after adopting said the 2nd set TEID instruction that the TEID of said network side header is revised the TEID on the SGW that becomes said correspondence, transmit the SGW of said network side message to said correspondence; The 4th forwarding module; The SGW that is used for said correspondence receives said network side message; With said network terminal IP address modification is the IP address of said user terminal; And, adopt the TEID of the said network side header of Set TEID instruction to be set to the TEID that said base station is said user terminal or the distribution of said user conversation, and said network side message is transmitted to terminal equipment through said base station according to behind the said network side header of said push Header instruction encapsulation.

Optional, when said second service request was the service switchover request, said MME comprised source MME and target MME; Said SGW comprises source SGW and target SGW; Said base station comprises source base station and target BS.

Optional; Said OPENFLOW controller; Specifically also comprise: second generation module is used to receive the service switchover request that said source MME sends to said target MME, based on said service switchover request; For said user terminal distributes corresponding target SGW, generate corresponding to first on the said target SGW and transmit instruction; The 3rd generates module, is used to receive first provisional injunction that said target MME sends, and is the corresponding target SGW of said target BS distribution based on said first provisional injunction, generates corresponding to interim forwarding of first on the said target SGW and instructs; The 4th generation module is used for second provisional injunction that reception sources MME sends, and is that said source base station distributes corresponding source SGW based on said second provisional injunction, on the second interim stream table, generate corresponding to second on the said source SGW is interim and transmit instruction; The 5th generation module is used for the service switchover request that receiving target MME sends, and is that said user terminal distributes corresponding target SGW based on said service switchover request, generates corresponding to second on the said target SGW and transmits instruction.

Optional, said OPENFLOW controller specifically also comprises: modified module, be used to send modify instruction, and be that said first interim the forwarding instructed with the said second interim forwarding instruction modification.

On the other hand, the present invention provides following technical scheme through another embodiment of the application:

The method that E-Packets in a kind of mobile grouping field network, said method comprises:

The base station receives user terminal and sends first service request;

MME receives said first service request from said base station, and generation second service request relevant with said first service request;

The OPENFLOW controller receives said second service request, and generates message forwarding instruction based on second service request;

Forwarding face equipment receives the message that said user terminal sends through said base station, and transmits under the control of instruction at said message, and said message is transmitted.

Optional, said second service request is bearer service request or service switchover request.

Optional, said forwarding face equipment specifically comprises SGW and PGW.

Optional, when said second service request was the bearer service request, said OPENFLOW controller received said second service request, and generated message forwarding instruction based on second service request, specifically comprised:

Based on said bearer service request, for said user terminal distributes corresponding SGW and corresponding PGW;

Based on the SGW of said correspondence, distribute the TEID on the SGW of said correspondence for said user terminal or user conversation, and based on the PGW of said correspondence, distribute the 2nd TEID on the PGW of said correspondence for said user terminal or said user conversation;

The operational order that includes the 3rd TEID that obtains based on a said TEID that reception is sent by said MME; And according to the said operational order that includes the 3rd TEID; With a said TEID; With said the 2nd TEID and QoS information, generate respectively corresponding to the forwarding instruction of SGW with corresponding to the forwarding of PGW and instruct.

Optional, said forwarding instruction corresponding to SGW specifically comprises Set TEID instruction or push Header instruction.

Optional, said forwarding instruction corresponding to PGW specifically comprises the 2nd Set TEID instruction, or the 2nd push Header instruction, or pop Header instruction.

Optional, transmit face equipment and receive the message that said user terminal sends, and transmit under the control of instruction at said message through said base station, said message is transmitted, specifically comprise:

Confirm that said message is user side message or network side message;

When definite said message is the user side message; The SGW of said correspondence adopts said Set TEID instruction that the TEID of said user side header is revised the 2nd TEID on the PGW that becomes said correspondence, and said user side message is forwarded among the PGW of said correspondence;

The PGW of said correspondence receives said user side message, and adopts said pop Header instruction to peel off said user side header, and to said user side message carry out QoS Mark processing with or carry out being forwarded to the external IP network after NAT handles.

Optional, transmit face equipment and receive the message that said user terminal sends, and transmit under the control of instruction at said message through said base station, said message is transmitted, specifically also comprise:

When definite said message is the network side message; After the PGW of said correspondence receives said network side message; Use the said network side header of the 2nd push Header instruction encapsulation; And after adopting said the 2nd setTEID instruction that the TEID of said network side header is revised the TEID on the SGW that becomes said correspondence, transmit the SGW of said network side message to said correspondence;

The SGW of said correspondence receives said network side message; With said network terminal IP address modification is the IP address of said user terminal; And according to behind the said network side header of said push Header instruction encapsulation; The TEID of the said network side header of employing Set TEID instruction is set to the TEID of said user terminal or said user conversation, and through said base station said network side message is transmitted to terminal equipment.

Optional, said OPENFLOW controller receives said second service request, and generates message forwarding instruction based on second service request, specifically also comprises:

Receive the service switchover request that said source MME sends to said target MME,,, generate corresponding to first on the said target SGW and transmit instruction for said user terminal distributes corresponding target SGW based on said service switchover request;

Receiving first provisional injunction that said target MME sends, is that said target BS distributes corresponding target SGW based on said first provisional injunction, generates corresponding to first on the said target SGW and transmits instruction temporarily;

Second provisional injunction that reception sources MME sends is that said source base station distributes corresponding source SGW based on said second provisional injunction, on the second interim stream table, generate corresponding to second on the said source SGW is interim and transmit instruction;

The service switchover request that receiving target MME sends is that said user terminal distributes corresponding target SGW based on said service switchover request, generates corresponding to second on the said target SGW and transmits instruction.

Optional, said OPENFLOW controller receives said second service request, and transmits instruction based on second service request generation message, specifically also comprises: the transmission modify instruction is that said first interim the forwarding instructed with the said second interim forwarding instruction modification.

One or more technical schemes in the technique scheme have following technique effect or advantage:

Through new network exchange model Open Flow is introduced in the EPC network; Carrying out message through forwarding face equipment SGW in the Open Flow controller control EPC network and PGW transmits; Through opening, concentrate and programmable control architecture has been supported quick exploitation, the deployment of fast new function; Thereby solve the new function of EPC network and introduced excessive cycle, and the high technical problem of R&D costs, have and can support quick function exploitation and the technique effect that greatly reduces R&D costs.

Description of drawings

Fig. 1 is a mobile grouping field network system sketch map in the embodiment of the invention one;

Fig. 2 in the embodiment of the invention one when second service request is the bearer service request, the specific functional modules sketch map in the OPENFLOW controller;

Fig. 3 is the specific functional modules sketch map of the embodiment of the invention one transfer fermentation equipment;

In Fig. 4 embodiment of the invention one when second service request is the service switchover request, the specific functional modules sketch map in the OPENFLOW controller;

Fig. 5 is the particular flow sheet of the method that E-Packets in the mobile grouping field network in the embodiment of the invention two;

Fig. 6 in the embodiment of the invention two when second service request is the bearer service request, the OPENFLOW controller generates message and transmits the particular flow sheet that instructs;

Fig. 7 in the embodiment of the invention two when second service request is the bearer service request, the OPENFLOW controller generates transmits the method flow diagram that instructs;

Fig. 8 in the embodiment of the invention two when second service request is handoff request, the OPENFLOW controller receives the service switchover request and generates message and transmit the detailed step figure that instructs.

Embodiment

Introduce excessive cycle in order to solve in the prior art the new function of EPC network, and the high technical problem of R&D costs, the embodiment of the invention provides a kind of mobile grouping field network system; Below in conjunction with Figure of description embodiments of the invention are described; Should be appreciated that embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention; And under the situation of not conflicting, all embodiment among the present invention and the characteristic among the embodiment can make up each other.

With reference to figure 1, a kind of mobile grouping field network system for providing in the embodiment of the invention one comprises:

Base station 101 is connected with user terminal, is used to receive the message and first service request that said user terminal sends.

MME102 is connected with said base station 101, is used for receiving said first service request through said base station 101, and generation second service request relevant with said first service request, said second service request is bearer service request and service switchover request.

OPENFLOW controller 103 is connected with said MME102, is used to receive said second service request, and generates message forwarding instruction based on second service request.

Wherein, with reference to figure 2, OPENFLOW controller 103 specifically comprises first distribution module 1031, is used for based on said bearer service request, for said user terminal distributes corresponding SGW and corresponding PGW; Second distribution module 1032; Be used for SGW based on said correspondence; Distribute the TEID on the SGW of said correspondence for said user terminal or said user conversation, and based on the PGW of said correspondence, distribute the 2nd TEID on the PGW of said correspondence for said user terminal or said user conversation; First generation module 1033; Be used to receive the operational order that includes the 3rd TEID that obtains based on a said TEID that sends by said MME; And according to the said operational order that includes the 3rd TEID; With a said TEID,, generate respectively corresponding to the forwarding instruction of SGW with corresponding to the forwarding of PGW and instruct with said the 2nd TEID and QoS information.

And the forwarding corresponding to SGW is instructed in first generation module 1033, specifically comprises Set TEID instruction or push Header instruction.Corresponding to the forwarding instruction of PGW, specifically comprise the 2nd Set TEID instruction in first generation module 1033, or the 2nd push Header instruction, or pop Header instruction.

Forwarding face equipment 104 is connected with said OPENFLOW controller 103 and said base station, is used for transmitting under the control of instruction at said message, and said message is transmitted, and wherein, transmits face equipment 104 and comprises SGW and PGW.

With reference to figure 3, transmit face equipment 104 and specifically comprise: determination module 1041 is used for confirming that said message is user side message or network side message; First forwarding module 1042; Be used for when definite said message is the user side message; The SGW of said correspondence adopts said Set TEID instruction that the TEID of said user side header is revised the 2nd TEID on the PGW that becomes said correspondence, and said user side message is forwarded among the PGW of said correspondence; Second forwarding module 1043; The PGW that is used for said correspondence receives said user side message; And adopt said pop Header instruction to peel off said user side header, and to said user side message carry out QoS Mark processing with or carry out being forwarded to the external IP network after NAT handles.

Forwarding face equipment 104 specifically also comprises: the 3rd forwarding module 1044; Be used for when definite said message is the network side message; After the PGW of said correspondence receives said network side message; Use the said network side header of the 2nd push Header instruction encapsulation, and after adopting said the 2nd set TEID instruction that the TEID of said network side header is revised the TEID on the SGW that becomes said correspondence, transmit the SGW of said network side message to said correspondence; The 4th forwarding module 1045; The SGW that is used for said correspondence receives said network side message; With said network terminal IP address modification is the IP address of said user terminal; And according to behind the said network side header of said push Header instruction encapsulation, the TEID of the said network side header of employing Set TEID instruction is set to the TEID of said user terminal or said user conversation, and through said base station said network side message is transmitted to terminal equipment.

When said second service request was the service switchover request, said MME comprised source MME and target MME; Said SGW comprises source SGW and target SGW; Said base station comprises source base station and target BS.

With reference to figure 4; OPENFLOW controller 103; Specifically also comprise: second generation module 1034 is used to receive the service switchover request that said source MME sends to said target MME, based on said service switchover request; For said user terminal distributes corresponding target SGW, generate corresponding to first on the said target SGW and transmit instruction; The 3rd generates module 1035, is used to receive first provisional injunction that said target MME sends, and is the corresponding target SGW of said target BS distribution based on said first provisional injunction, generates corresponding to interim forwarding of first on the said target SGW and instructs; The 4th generation module 1036 is used for second provisional injunction that reception sources MME sends, and is that said source base station distributes corresponding source SGW based on said second provisional injunction, on the second interim stream table, generate corresponding to second on the said source SGW is interim and transmit instruction; The 5th generation module 1037 is used for the service switchover request that receiving target MME sends, and is that said user terminal distributes corresponding target SGW based on said service switchover request, generates corresponding to second on the said target SGW and transmits instruction.OPENFLOW controller 103 specifically also comprises: modified module 1038, be used to send modify instruction, and be that said first interim the forwarding instructed with the said second interim forwarding instruction modification.

Through above-mentioned detailed introduction, to the mobile grouping field network system in the embodiment of the invention one, and mutual contact and the function of various piece carried out detailed explanation in the system.

Below in conjunction with Fig. 5, carry out detailed explanation with the method that E-Packets in two pairs of mobile grouping field networks of embodiment.

Step 501, the base station receives user terminal and sends first service request.

Step 502, MME receives said first service request from said base station, and generation second service request relevant with said first service request.

Second service request can be bearer service request or service switchover request.

When second service request was the bearer service request, the OPENFLOW controller generated the concrete steps of message forwarding instruction with reference to figure 6, as follows:

Step 5021 is based on said bearer service request, for said user terminal distributes corresponding SGW and corresponding PGW.

Step 5022; SGW based on said correspondence; Distribute the TEID on the SGW of said correspondence for said user terminal or said user conversation, and based on the PGW of said correspondence, distribute the 2nd TEID on the PGW of said correspondence for said user terminal or said user conversation.

Step 5023; The operational order that includes the 3rd TEID that obtains based on a said TEID that reception is sent by said MME; And according to the said operational order that includes the 3rd TEID; With a said TEID,, generate respectively corresponding to the forwarding instruction of SGW with corresponding to the forwarding of PGW and instruct with said the 2nd TEID and QoS information.

Wherein, the forwarding instruction corresponding to SGW comprises Set TEID instruction or push Header instruction.Forwarding instruction corresponding to PGW comprises the 2nd Set TEID instruction, or the 2nd push Header instruction, or pop Header instruction.

Step 503, OPENFLOW controller receive said second service request, and generate message forwarding instruction based on second service request.

Forwarding face equipment specifically comprises SGW and PGW.

Step 504 is transmitted face equipment and is received the message that said user terminal sends through said base station, and transmits under the control of instruction at said message, and said message is transmitted.

The description that above-mentioned steps is detailed when second service request is the bearer service request, the OPENFLOW controller generate to be transmitted the method for instruction, and the process of using the forwarding instruction of this generation to transmit, then with reference to figure 7, as follows:

Step 701 confirms that said message is user side message or network side message.

Step 702; When definite said message is the user side message; The SGW of said correspondence adopts said Set TEID instruction that the TEID of said user side header is revised the 2nd TEID on the PGW that becomes said correspondence, and said user side message is forwarded among the PGW of said correspondence.

Step 703, the PGW of said correspondence receives said user side message, and adopts said pop Header instruction to peel off said user side header, and to said user side message carry out QoS Mark processing with or carry out being forwarded to the external IP network after NAT handles.

Corresponding; Also comprise step 704; When definite said message is the network side message, after the PGW of said correspondence receives said network side message, use the said network side header of the 2nd push Header instruction encapsulation; And after adopting said the 2nd set TEID instruction that the TEID of said network side header is revised the TEID on the SGW that becomes said correspondence, transmit the SGW of said network side message to said correspondence.

Step 705; The SGW of said correspondence receives said network side message; With said network terminal IP address modification is the IP address of said user terminal; And according to behind the said network side header of said push Header instruction encapsulation, the TEID of the said network side header of employing Set TEID instruction is set to the TEID of said base station, and through said base station said network side message is transmitted to terminal equipment.

When utilization forwarding face equipment is transmitted message; Can in the OPENFLOW controller, generate in advance and transmit instruction; Sent to forwarding face equipment message was transmitted through transmitting instruction; Also can be when message be transmitted, generate immediately according to the type of message and to transmit instruction, sent to forwarding face equipment message was transmitted through transmitting to instruct.

Below describe with the message of GTP encapsulation, the forwarding instruction of OpenFlow agreement is expanded and the forwarding face of being handed down to equipment.

When GPT encapsulated, the instruction that is handed down to forwarding face had: Push GTP-Header increases a GTP head in message; Pop GTP-Header peels off a GTP head in message; Set GTP-TEID is provided with GTP source endpoint of a tunnel ID.

In addition, can also use the GRE encapsulated message, GRE encapsulation and GTP encapsulation are similar, have just repeated no more here.

When if user terminal need be transmitted an IP message; This message at first can arrive SGW through the base station; Through it being judged as the user side message; Then SGW can adopt said Set GTP-TEID instruction that the TEID of said user side header with the GTP encapsulation is revised the 2nd TEID on the PGW that becomes said correspondence; And said user side message with GTP encapsulation is forwarded among the PGW of said correspondence, PGW receives said user side message with the GTP encapsulation then, and adopts said pop GTP-Header instruction to peel off said user side header with the GTP encapsulation; And to said user side message with GTP encapsulation carry out the QoSMark processing with or carry out being forwarded to the network terminal after NAT handles.

Above-mentioned for example clear in the OPENFLOW controller, the generation in advance transmitted instruction, sends to the situation that forwarding face equipment is transmitted message through transmitting instruction.In addition also can be when message be transmitted, generate immediately according to the type of message and to transmit instruction, sent to forwarding face equipment message was transmitted through transmitting to instruct.

User terminal plans to initiate a web access, then at first sends a TCP (TransmissionControl Protocol, transmission control protocol) and connects a type message, and this message at first arrives SGW via the base station.And this SGW lacks the instruction that the OpenFlow controller sends, so this message is forwarded the controller to OpenFlow.The OpenFlow controller judges that it is a common web access, then generates the instruction that is applicable to that this message is transmitted according to this message.

This instruction comprises: Push GTP-Header increases a GTP head in message; PopGTP-Header peels off a GTP head in message; Set GTP-TEID is provided with GTP source endpoint of a tunnel ID.

The OpenFlow controller sends to SGW with above-mentioned instruction; And indication SGW connects a type message forwarding to TCP; SGW carries out pop GTP-Header according to the instruction of OpenFlow and peels off the GTP head, and after carrying out the NAT processing, transmits this TCP and connect type message to the network terminal.

When network terminal side joint receives that this TCP connects, can respond this TCP and connect, when this TCP of response connects, can pass through SGW.

SGW is that the base station is the Tunnel Identifier that the user distributes according to the TEID of set GTP-TEID instruction map message, arrives user terminal through the base station then, and after connection was set up, user terminal just can normal access Web business.

Should be appreciated that only to be used for explanation here for example and to explain the present invention, and be not used in qualification the present invention, E-Packet and select, enumerate no longer one by one here according to actual conditions.

And when second service request was handoff request, the OPENFLOW controller received the service switchover request and generates the detailed step that message is transmitted instruction, with reference to figure 8, as follows:

Step 801 receives the service switchover request that said source MME sends to said target MME, based on said service switchover request, for said user terminal distributes corresponding target SGW, generates corresponding to first on the said target SGW and transmits instruction.

Step 802 receives first provisional injunction that said target MME sends, and is that said target BS distributes corresponding target SGW based on said first provisional injunction, generates corresponding to first on the said target SGW and transmits instruction temporarily.

Step 803, second provisional injunction that reception sources MME sends is that said source base station distributes corresponding source SGW based on said second provisional injunction, on the second interim stream table, generate corresponding to second on the said source SGW is interim and transmit instruction.

Step 804, the service switchover request that receiving target MME sends is that said user terminal distributes corresponding target SGW based on said service switchover request, generates corresponding to second on the said target SGW and transmits instruction.

Except that above-mentioned steps, specifically also comprise step 805, send modify instruction, be the said first interim forwarding instruction with the said second interim forwarding instruction modification.

Should be appreciated that because the first forwarding instruction of above-mentioned generation can be saved then transmit instruction modification for generating the second forwarding instruction with said first here, it does not influence enforcement of the present invention, is not used in qualification the present invention yet.

By one or more embodiment of the present invention, can be achieved as follows technique effect:

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims

1. a mobile grouping field network system is characterized in that, comprising:

The base station is connected with user terminal, is used to receive the message and first service request that said user terminal sends;

MME is connected with said base station, is used for receiving said first service request through said base station, and generation second service request relevant with said first service request;

The OPENFLOW controller is connected with said MME, is used to receive said second service request, and generates message forwarding instruction based on second service request;

Forwarding face equipment is connected with said OPENFLOW controller and said base station, is used for transmitting under the control of instruction at said message, and said message is transmitted.

2. the system of claim 1 is characterized in that, said second service request is bearer service request and service switchover request.

3. the system of claim 1 is characterized in that, said forwarding face equipment specifically comprises SGW and PGW.

4. like claim 2 or the described system of 3 arbitrary claims, it is characterized in that said OPENFLOW controller specifically comprises:

Second distribution module; Be used for SGW based on said correspondence; Distribute the TEID on the SGW of said correspondence for said user terminal or user conversation, and based on the PGW of said correspondence, distribute the 2nd TEID on the PGW of said correspondence for said user terminal or said user conversation;

5. system as claimed in claim 4 is characterized in that, corresponding to the forwarding instruction of SGW, specifically comprises Set TEID instruction or push Header instruction in the said generation module.

6. system as claimed in claim 4 is characterized in that, corresponding to the forwarding instruction of PGW, specifically comprises the 2nd Set TEID instruction in the said generation module, or the 2nd push Header instruction, or the popHeader instruction.

7. like claim 5 or the described system of 6 arbitrary claims, it is characterized in that said forwarding face equipment specifically comprises:

Determination module is used for confirming that said message is user side message or network side message;

First forwarding module; Be used for when definite said message is the user side message; The SGW of said correspondence adopts said Set TEID instruction that the TEID of said user side header is revised the 2nd TEID on the PGW that becomes said correspondence, and said user side message is forwarded among the PGW of said correspondence;

Second forwarding module; The PGW that is used for said correspondence receives said user side message; And adopt said pop Header instruction to peel off said user side header, and to said user side message carry out QoS Mark processing with or carry out being forwarded to the external IP network after NAT handles.

8. like claim 5 or the described system of 6 arbitrary claims, it is characterized in that said forwarding face equipment specifically also comprises:

The 3rd forwarding module; Be used for when definite said message is the network side message; After the PGW of said correspondence receives said network side message; Use the said network side header of the 2nd push Header instruction encapsulation, and after adopting said the 2nd set TEID instruction that the TEID of said network side header is revised the TEID on the SGW that becomes said correspondence, transmit the SGW of said network side message to said correspondence;

The 4th forwarding module; The SGW that is used for said correspondence receives said network side message; With said network terminal IP address modification is the IP address of said user terminal; And according to behind the said network side header of said push Header instruction encapsulation, the TEID of the said network side header of employing Set TEID instruction is set to the TEID of said user terminal in said base station or said user conversation, and through said base station said network side message is transmitted to terminal equipment.

9. like claim 1 or the described system of 2 arbitrary claims, it is characterized in that when said second service request was the service switchover request, said MME comprised source MME and target MME; Said SGW comprises source SGW and target SGW; Said base station comprises source base station and target BS.

10. system as claimed in claim 9 is characterized in that, said OPENFLOW controller specifically also comprises:

Second generation module is used to receive the service switchover request that said source MME sends to said target MME, based on said service switchover request, for said user terminal distributes corresponding target SGW, generates corresponding to first on the said target SGW and transmits instruction;

The 3rd generates module, is used to receive first provisional injunction that said target MME sends, and is the corresponding target SGW of said target BS distribution based on said first provisional injunction, generates corresponding to interim forwarding of first on the said target SGW and instructs;

The 4th generation module is used for second provisional injunction that reception sources MME sends, and is that said source base station distributes corresponding source SGW based on said second provisional injunction, on the second interim stream table, generate corresponding to second on the said source SGW is interim and transmit instruction;

The 5th generation module is used for the service switchover request that receiving target MME sends, and is that said user terminal distributes corresponding target SGW based on said service switchover request, generates corresponding to second on the said target SGW and transmits instruction.

11. system as claimed in claim 10 is characterized in that, said OPENFLOW controller specifically also comprises:

Modified module is used to send modify instruction, is that said first interim the forwarding instructed with the said second interim forwarding instruction modification.

12. the method that E-Packets in the mobile grouping field network is characterized in that said method comprises:

The base station receives user terminal and sends first service request;

13. method as claimed in claim 12 is characterized in that, said second service request is bearer service request or service switchover request.

14. method as claimed in claim 12 is characterized in that, said forwarding face equipment specifically comprises SGW and PGW.

15. like claim 13 or the described method of 14 arbitrary claims; It is characterized in that when said second service request was the bearer service request, said OPENFLOW controller received said second service request; And, specifically comprise based on second service request generation message forwarding instruction:

16. method as claimed in claim 15 is characterized in that, said forwarding instruction corresponding to SGW specifically comprises Set TEID instruction or push Header instruction.

17. method as claimed in claim 15 is characterized in that, said forwarding instruction corresponding to PGW specifically comprises the 2nd Set TEID instruction, or the 2nd push Header instruction, or pop Header instruction.

18., it is characterized in that like claim 16 or the described method of 17 arbitrary claims, transmit face equipment and receive the message that said user terminal sends, and transmit under the control of instruction at said message through said base station, said message is transmitted, specifically comprise:

Confirm that said message is user side message or network side message;

19. want the described method of 16 or 17 arbitrary claims like right, it is characterized in that, transmit face equipment and receive the message that said user terminal sends, and transmit under the control of instruction at said message through said base station, said message is transmitted, specifically also comprise:

20., it is characterized in that when said second service request was the service switchover request, said MME comprised source MME and target MME like claim 12 or the described method of 13 arbitrary claims; Said SGW comprises source SGW and target SGW; Said base station comprises source base station and target BS.

21. method as claimed in claim 20 is characterized in that, said OPENFLOW controller receives said second service request, and generates message forwarding instruction based on second service request, specifically also comprises:

22. method as claimed in claim 21 is characterized in that, said OPENFLOW controller receives said second service request, and generates message forwarding instruction based on second service request, specifically also comprises:

Sending modify instruction, is the said first interim forwarding instruction with the said second interim forwarding instruction modification.