CN108924863A - A kind of S11 interface method of automatic configuration and system - Google Patents
A kind of S11 interface method of automatic configuration and system Download PDFInfo
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- CN108924863A CN108924863A CN201810789026.7A CN201810789026A CN108924863A CN 108924863 A CN108924863 A CN 108924863A CN 201810789026 A CN201810789026 A CN 201810789026A CN 108924863 A CN108924863 A CN 108924863A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
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Abstract
The invention belongs to mobile communication technology fields, disclose a kind of S11 interface method of automatic configuration and system, when gateway pond is added in newly-increased gateway, it is that newly-increased gateway configures IP address and logical name by OAM, and it is sent to the main gateway in gateway pond, main gateway forwards information to the target mobility management entity in mobility management entity pond, then the information of newly-increased gateway is forwarded in mobility management entity pond other mobility management entity by target mobility management entity, to which mobility management entity all in mobility management entity pond can be by increasing the S11 interface between the information foundation of gateway and newly-increased gateway newly.The present invention provides a kind of specific schemes for the S11 interface automatic configuration process under newly-increased gateway scene, realize have the advantages that be easily achieved based on original system framework.
Description
Technical field
The present invention relates to the automatic of S11 interface in mobile communication technology field more particularly to evolved packet system network to match
It sets.
Background technique
System architecture such as Fig. 1 of the evolved packet system (EPS, Evolved Packet System) of 3GPP long term evolution
It is shown.According to the agreement 3GPP of SAE (System Architecture Evolution, System Architecture Evolution)
TS23.401v8.2.0, the system include EPC (Evolved Packet Core, evolution block core net) and E-UTRAN
(Evolved Universal Terrestrial Radio Access Network, evolved universal terrestrial wireless access network).
Wherein, EPC includes MME (Mobility Management Entity, mobility management entity), SGW
The network element devices such as (Serving Gateway, gateway), PGW (PDN Gateway, PDN Gateway).MME is UE (User
Equipment, user equipment) accessibility management, the paging comprising Idle state UE, the i.e. tracking etc. of the shift position UE are provided.
SGW provides user face data for UE；PGW is gateway of the user towards packet data network PDN, provides connecing towards IP network for UE
Enter service.MME Pool (mobility management entity pond) set formed by the purpose that multiple MME are balancing the load；SGW
Pool (gateway pond) set formed by the purpose that multiple SGW are balancing the load.E-UTRAN includes ENB
(Evolved NodeB, evolution base station), ENB mainly provides the wireless connection of UE and network.
In above system framework, S10 interface is the control plane interface between two MME, is based on GTP-C agreement.ENB with
Interface S1-MME is passed through based on SCTP (Stream Control Transfer Protocol, stream control transmission protocol) between MME
(S1interface for Mobility Management) connection, S1-MME interface transmit control plane between MME and ENB
Signaling.S1-MME interface abbreviation S1 interface.Interface in the user plane of the S1-U between SGW and ENB is based on GTP agreement.S11 interface is
Control plane interface between MME and SGW is based on GTPv2-C agreement.
Based on the above-mentioned EPS network architecture, when the EPC equipment such as MME and SGW has been disposed under the scene finished, new SGW
When network is added, can cause S11 interface automatically configures problem.But in the S11 interface related protocol of existing 3GPP
In TS23.401, specific scheme is not provided for increasing the S11 interface automatic configuration process under SGW scene newly.Therefore, at present
Need a kind of method that the S11 interface increased newly under scene for SGW automatically configures.
Summary of the invention
The object of the present invention is to provide a kind of S11 interface method of automatic configuration and systems, to solve that net is added in newly-increased SGW
S11 interface when network automatically configures problem.
The present invention proposes a kind of S11 interface method of automatic configuration, includes the following steps：
Step S1, after gateway pond is added in first service gateway, OAM is that first service gateway configuration first is added
Information, and the first addition information is sent to the second service gateway in the gateway pond；
Step S2, the described second service gateway sends first movement pipe of the S11 information into mobility management entity pond
Entity is managed, the S11 information includes the first addition information；
Step S3, the described first movement management entity sends S10 information to the second mobility management entity, the S10
Information includes the first addition information；
Step S4, all mobility management entity are added all in accordance with described first and believe in the described mobility management entity pond
Breath establishes the S11 interface between the first service gateway；
Wherein, described first the IP address and logical name that information includes the first service gateway is added, described second moves
Mobility management entity is every other in addition to the first movement management entity in the mobility management entity pond
Mobility management entity.
Preferably, in the step S3, the first movement management entity sends S10 information to the second mobile management
It is further comprising the steps of before entity：
The first movement management entity obtained from the OAM second mobility management entity with confidence
Breath, the first movement management entity are established between second mobility management entity according to the configuration information
S10 interface；
Wherein, the configuration information includes IP address and logical name.
Preferably, in the step S4, in the mobility management entity pond all mobility management entity all in accordance with
Described first, which is added information, establishes before the S11 interface between the first service gateway, further comprising the steps of：
All mobility management entity all in accordance with it is described first addition information judge whether with the first service
Gateway establishes S11 interface.
Preferably, the second service gateway is the smallest service network of load in default service gateway or gateway pond
It closes.
Preferably, the first movement management entity is to establish the mobility that S11 is connect with the second service gateway
Management entity.
It corresponding to the above method, the present invention proposes a kind of S11 interface automatic configuration system, including：Gateway pond is moved
Mobility management entity pond, OAM；
The OAM is communicated with the gateway in the gateway pond by privately owned interface Itf-LTE, the OAM with
Mobility management entity in the mobility management entity pond is communicated by privately owned interface Itf-LTE, the gateway pond
Including at least two gateways, the mobility management entity pond includes at least two mobility management entity；The service
Gateway and the mobility management entity pass through S11 interface communication, pass through S10 interface between multiple mobility management entity
Communication；
Gateway in the gateway pond, the mobility management entity in the mobility management entity pond, institute
OAM is stated to realize such as the step of the above method.
Preferably, the OAM includes：Wireless and transmission information configuration server；
The OAM is to deposit the first addition information after information is added in first service gateway configuration described first
Storage is into described wireless and transmission information configuration server.
Preferably, the gateway includes：First information receiving module, first information sending module；
The second service gateway receives the first addition letter from the OAM by first receiving module
Breath；
The second service gateway sends the S11 information to the first movement by the first information sending module
Property management entity.
Preferably, the mobility management entity includes：Second information receiving module, IP address obtain module, S11 interface
Establish module；
The first movement management entity is received by second information receiving module and comes from the second service net
The S11 information closed；Second mobility management entity is received by second information receiving module from described the
The S10 information of one mobility management entity；
The IP address is with obtaining the IP that module is used to that first service gateway described in acquisition of information to be added according to described first
Location；
The S11 interface establishes module for establishing mobility management entity according to the IP address of the first service gateway
With the S11 interface between the first service gateway.
Preferably, the IP address acquisition module includes：Logical name acquisition submodule, IP address inquire submodule；
The logical name acquisition submodule is used for patrolling for the first service gateway according to the first addition acquisition of information
Collect name；
The IP address inquiry submodule is used to obtain the first service according to the logical name of the first service gateway
The IP address of gateway.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages：
In the embodiment of the present application, when gateway pond is added in newly-increased gateway (i.e. first service gateway), pass through
OAM is that newly-increased gateway configures IP address and logical name, and is sent to (the i.e. second clothes of the main gateway in gateway pond
Business gateway), (i.e. first moves the target mobility management entity that main gateway forwards information in mobility management entity pond
Mobility management entity), then the information of newly-increased gateway is forwarded to mobility management entity by target mobility management entity
Other mobility management entity (i.e. the second mobility management entity) in pond, thus shifting all in mobility management entity pond
Mobility management entity can be established between newly-increased gateway by increasing the information (IP address and logical name) of gateway newly
S11 interface.To sum up, S11 interface provided by the invention, which automatically configures scheme, is realized based on original system framework, is had easy
In realize the advantages of, provide a kind of specific side for the S11 interface automatic configuration process under newly-increased gateway scene
Case.
Detailed description of the invention
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution in the present embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is one embodiment of the present of invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is System Architecture Evolution SAE system tray in a kind of S11 interface automatic configuration system provided in an embodiment of the present invention
Composition；
Fig. 2 is a kind of flow chart of S11 interface method of automatic configuration provided in an embodiment of the present invention；
Fig. 3 is to increase gateway SGW in a kind of S11 interface method of automatic configuration provided in an embodiment of the present invention newly to movement
Property management entity pond MME Pool in all mobility management entity MME the flow chart of logical names and IP address is provided；
Fig. 4 is OAM, mobility management entity pond in a kind of S11 interface automatic configuration system provided in an embodiment of the present invention
The interface diagram of MME Pool and gateway pond SGW Pool；
Fig. 5 is the functional module of gateway SGW in a kind of S11 interface automatic configuration system provided in an embodiment of the present invention
Schematic diagram；
Fig. 6 is the function of mobility management entity MME in a kind of S11 interface automatic configuration system provided in an embodiment of the present invention
The schematic diagram of energy module.
Specific embodiment
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
The present invention proposes a kind of S11 interface method of automatic configuration, mainly includes：
A, after gateway pond SGW Pool is added in newly-increased gateway (newly-increased SGW), OAM (Operation,
Administration&Maintenance, operation, maintenance and management) it is that the newly-increased SGW configures corresponding IP address and patrols
Collect name；Original main gateway (main SGW) obtains the addition message of newly-increased SGW, institute from the OAM in the SGW Pool
State the IP address and logical name for being added that message includes the newly-increased SGW；
B, target mobility management entity (target MME) of the main SGW into mobility management entity pond MME Pool
S11 message is sent, the S11 message includes the addition message of newly-increased SGW；
C, the target MME is from obtaining other mobility management entity (other MME) in the MME Pool in the OAM
Configuration information, others MME establishes S10 interface and into the MME Pool in the target MME and the MME Pool
Other MME send S10 message, and the S10 message includes the addition message of newly-increased SGW；
D, each MME in the MME Pool establishes the MME and described new according to the addition message of the newly-increased SGW
Increase the S11 interface between SGW.
Method is described further below.
It is illustrated in figure 2 the flow chart of one embodiment that the present invention realizes that S11 interface automatically configures, one kind is shown and exists
Newly-increased SGW carries out the method for S11 interface automatically configured when network is added, include the following steps：
Step S201, newly-increased SGW is added after SGW Pool, and OAM pushes the addition message of the newly-increased SGW to main SGW,
The addition message of the newly-increased SGW includes the IP address and logical name of the newly-increased SGW.
Step S202, the described main SGW pushes the addition message of the newly-increased SGW to target MME.
Step S203, described target MME others MME into MME Pool notifies the addition message of the newly-increased SGW.
Step S204, the MME in the described MME Pool obtains the IP address and logical name of the newly-increased SGW.
Step S205, the MME in the described MME Pool establishes the S11 interface between the newly-increased SGW.
According to one embodiment of present invention, the step S201 may include following sub-step：
(1) OAM is that newly-increased SGW configures corresponding IP address and logical name；
(2) OAM main SGW into the SGW Pool pushes the addition message of newly-increased SGW.
According to one embodiment of present invention, the step S202 may include following sub-step：
(1) the main SGW sends S11 message to the target MME；
(2) the target MME increases the addition message of SGW newly from the S11 message extraction, and the addition message includes newly-increased
The IP address and logical name of SGW；
According to one embodiment of present invention, the step S203 may include following sub-step：
(1) the target MME is from the configuration information for obtaining other MME in the MME Pool in OAM, the configuration information
IP address and logical name including MME；
(2) the target MME establishes the target MME and its according to the configuration information of other MME in the MME Pool
S10 interface between his MME；
(3) target MME others MME into the MME Pool sends S10 message, and the S10 message includes new
Increase the IP address and logical name of SGW；
(4) all MME in the MME Pool are according to the addition message of the newly-increased SGW received, described in judgement
Whether newly-increased SGW is the SGW having connected, if it is not connected, between foundation and the newly-increased SGW S11 interface.
To newly-increased SGW, into MME Pool, all MME provide its IP address below and the process of logical name is done further
It explains, as shown in figure 3, this process includes the following steps：
Step S301, the described OAM sends what SGW Pool member updated to the main SGW by privately owned interface Itf-LTE
Message is added, that is, increases the addition information of SGW newly, includes the IP address and logical name of newly-increased SGW in the message.
For example, " OAM_SGW_SgwPool_Member_Update.Add (SGW_NAME, SGW_IP_ can be defined
ADDRESS_LIST)".The main SGW be undertake " OAM_SGW_SgwPool_Member_Update.Add (SGW_NAME,
SGW_IP_ADDRESS_LIS T) " SGW of message handling task.
Step S302, the described main SGW sends SGW Pool member to target MME by S11 interface and updates addition message, should
Message includes the IP address and logical name of newly-increased SGW.
Extension message " [GTPv2-C] can be defined：SGW_MME_SgwPool_Member_Update.Add(SGW_
NAME,SGW_IP_ADDRESS_LIST)".The target MME is to undertake " SGW_MME_SgwPool_Member_
The MME of Update.Add (SGW_NAME, SGW_IP_ADDRE SS_LIST) " message handling task.
Step S303, the described target MME is receiving the next " SGW_MME_SgwPool_Member_ of main SGW push
After Update.Add (SGW_NAME, SGW_IP_ADDRESS_LIST) " message, target MME is by Itf-LTE interface to described
OAM sends " MME_OAM_Get_MmePool_Member_Req () " message request.
The OAM is returned after receiving " MME_OAM_Get_MmePool_Member_Req () " message to the target MME
Multiple " OAM_MME_Get_MmePool_Member_Rsp ((MME1_NAME, MME1_IP_ADDRESS_LIST) ...,
(MMEn-1_NAME, MMEn-1_IP_ADDRESS_LIST)) ", wherein n indicates the number of MME in MME Pool.
By from the OAM obtain MME Pool in other MME IP address and logical name after, target MME judgement with
Whether other MME establish S10 interface in MME Pool, if not establishing S10 interface, the target MME is according to
The IP address of other MME and logical name establish S10 interface in MME Pool.
After the S10 interface is successfully established, the target MME passes through S10 interface others MME into the MME Pool
Send extension message " [GTPv2-C]：MME_MME_S10_SgwPool_Member_Update.Add(SGW_NAME,SGW_IP_
ADDRESS_LIST) " message, the S10 message include the IP address and logical name of newly-increased SGW.
Step S304, others MME is from " MME_MME_S10_SgwPool_Member_ in the described MME Pool
The IP address and logical name of newly-increased SGW are obtained in Update.Add (SGW_NAME, SGW_IP_ADDRESS_LIST) ".
Step S305, after all MME in the described MME Pool obtain the logical name of newly-increased SGW, first looking at it is
Whether the no SGW for " having connected " with MME establishes S11 interface, if not connected, shows that the SGW's is really newly-increased
SGW needs to establish S11 interface with it.
For the newly-increased SGW having been acknowledged, the MME in MME Pool uses " MME_MME_S10_SgwPool_Member_
The IP address that SGW_IP_ADDRESS_LIST is carried in Update.Add (SGW_NAME, SGW_IP_A DDRESS_LIST) ",
If IP address be it is multiple if optionally first, to newly-increased SGW initiate S11 interface automatic configuration process.Success carries out S11 interface
Foundation after, then S11 interface is considered as automatically configuring completion.
The verification step of above-mentioned steps S305 is prevented to confirm that SGW corresponding to logical name is strictly newly-increased SGW
MME is re-established with the SGW for having built up S11 interface and is connect, and causes the waste of Internet resources.Optionally may be used in specific implementation
The step S305 whether is used with unrestricted choice.
In above-mentioned newly-increased SGW, into MME Pool, MME is provided in IP address and logical name method, and main SGW is newly-increased to undertake
The SGW of SGW addition Message Processing.The selection of main SGW can use following two scheme：
(1) default SGW：Specify a SGW as main SGW in multiple SGW in SGW Pool, for example, the can be selected
One is added the SGW of SGW Pool as main SGW.
(2) load minimum SGW：The most light SGW of load is chosen according to the information on load of in SGW Pool SGW as master
SGW.Load balancing between SGW is conducive to using this scheme.
In above-mentioned newly-increased SGW, into MME Pool, MME is provided in IP address and logical name method, and target MME is to undertake newly
Increase the MME that Message Processing is added in SGW.The target MME is to establish the MME that S11 is connect with the main SGW.
It is illustrated in figure 4 OAM, MME Pool and SGW Pool interface diagram, is connect between SGW and OAM by Itf-LTE
Mouthful connection, connects by Itf-LTE interface between MME and OAM, is connected between SGW and MME by S11 interface, MME and MME it
Between connected by S10 interface.OAM configures corresponding IP address and logical name when SGW Pool is added in newly-increased SGW, for it, and
In wireless (Radio) and transmission (Transfer) information configuration server being stored in OAM；Further, the nothing in OAM
Line and transmission information configuration server store all SGW configuration informations in SGW Pool, and the SGW configuration information includes SGW
IP address and logical name；All MME configurations in MME Pool are also stored in wireless and transmission information configuration server in OAM
Information, the MME configuration information include the IP address and logical name of MME.
On the other hand, S11 interface when one embodiment of the present of invention proposes a kind of newly-increased gateway SGW addition network
The system automatically configured, the system include OAM, SGW Pool and MME Pool.It include at least two SGW, institute in SGW Pool
It states and passes through S11 interface communication between SGW and MME, the MME between the MME Pool passes through S10 interface communication.The MME Pool
In MME S11 interface is established according to the IP address and newly-increased SGW of newly-increased SGW.
In the above-described embodiments, the SGW Pool includes main SGW, and the MME Pool includes target MME.The master
SGW is used to receive the addition message of the newly-increased SGW of OAM transmission, and disappears to the addition that the target MME sends newly-increased SGW
Breath；The target MME other MME into MME Pool send the addition message of newly-increased SGW.MME root in the MME Pool
Judge whether the newly-increased SGW is the SGW having connected according to the logical name of newly-increased SGW, if not connected, needs to increase newly with described
SGW establishes S11 interface.
As Fig. 5 be SGW of the invention functional module schematic diagram, including：Message reception module (i.e. first is added in SGW
Information receiving module), receive the addition message for the newly-increased SGW that OAM is sent；Message transmission module (the i.e. first information is added in SGW
Sending module), the addition message of newly-increased SGW is sent to target MME.
Such as the schematic diagram for the functional module that Fig. 6 is MME of the invention.The specific effect phase of module when role's difference of MME
Should be also different, it is specific as follows：
When 1, the MME are target MME, which includes：
Message reception module (i.e. the second information receiving module) is added in SGW, receives adding for the newly-increased SGW that main SGW is sent
Enter message；
IP address obtains module, according to the addition message of the newly-increased SGW, obtains the IP address of the newly-increased SGW；
S11 interface establishes module, according to the addition message of the newly-increased SGW, establishes and connects with the S11 of the newly-increased SGW
Mouthful.
When 2, the MME are non-targeted MME, as other MME in MME Pool, which includes：
Message reception module (i.e. the second information receiving module) is added in SGW, receives the newly-increased SGW's that target MME is sent
Message is added；
IP address obtains module, according to the addition message of the newly-increased SGW, obtains the IP address of the newly-increased SGW；
S11 interface establishes module, according to the IP address of the newly-increased SGW, establishes the S11 interface with the newly-increased SGW.
In the above-described embodiments, the IP address acquisition module includes：
SGW logical name acquisition submodule is used to obtain the newly-increased SGW's according to the addition message of the newly-increased SGW
Logical name；
IP address inquires submodule, with being used to inquire the IP of the newly-increased SGW according to the logical name of the newly-increased SGW
Location.
According to an aspect of the present invention, the IP address enquiry module is used for the logical name based on the newly-increased SGW, to
Wireless and transmission information configuration server in OAM inquires the IP address of the newly-increased SGW.
S11 interface method of automatic configuration and system of the present invention, propose it is a kind of in newly-increased SGW addition network into
The specific feasible program of row S11 interface automatic configuration process, and the program is based on original system architecture, it is easy to accomplish.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (10)
1. a kind of S11 interface method of automatic configuration, which is characterized in that include the following steps：
Step S1, after gateway pond is added in first service gateway, OAM is that letter is added in first service gateway configuration first
Breath, and the first addition information is sent to the second service gateway in the gateway pond；
Step S2, the described second service gateway sends first movement of the S11 information into mobility management entity pond and manages in fact
Body, the S11 information include the first addition information；
Step S3, the described first movement management entity sends S10 information to the second mobility management entity, the S10 information
Information is added comprising described first；
Step S4, all mobility management entity are built all in accordance with the first addition information in the described mobility management entity pond
S11 interface between the vertical and described first service gateway；
Wherein, described first the IP address and logical name that information includes the first service gateway, second mobility is added
Management entity is the every other movement in the mobility management entity pond in addition to the first movement management entity
Property management entity.
2. S11 interface method of automatic configuration according to claim 1, which is characterized in that in the step S3, described first
It is further comprising the steps of before mobility management entity sends S10 information to the second mobility management entity：
The first movement management entity obtains the configuration information of second mobility management entity, institute from the OAM
First movement management entity is stated to be connect according to the S10 that the configuration information is established between second mobility management entity
Mouthful；
Wherein, the configuration information includes IP address and logical name.
3. S11 interface method of automatic configuration according to claim 1 or 2, which is characterized in that described in the step S4
All mobility management entity are added information all in accordance with described first and establish and first clothes in mobility management entity pond
It is further comprising the steps of before S11 interface between business gateway：
All mobility management entity all in accordance with it is described first addition information judge whether with the first service gateway
Establish S11 interface.
4. S11 interface method of automatic configuration according to claim 1, which is characterized in that the second service gateway is silent
Recognize the smallest gateway of load in gateway or gateway pond.
5. S11 interface method of automatic configuration according to claim 1, which is characterized in that the first movement management is real
Body is to establish the mobility management entity that S11 is connect with the second service gateway.
6. a kind of S11 interface automatic configuration system, which is characterized in that including：Gateway pond, mobility management entity pond,
OAM；
The OAM is communicated with the gateway in the gateway pond by privately owned interface Itf-LTE, the OAM with it is described
Mobility management entity in mobility management entity pond is communicated by privately owned interface Itf-LTE, and the gateway pond includes
At least two gateways, the mobility management entity pond include at least two mobility management entity；The gateway
Pass through S11 interface communication with the mobility management entity, is led between multiple mobility management entity by S10 interface
Letter；
Gateway in the gateway pond, the mobility management entity in the mobility management entity pond, the OAM
It realizes such as the step of any one of claim 1-5 the method.
7. S11 interface automatic configuration system according to claim 6, which is characterized in that the OAM includes：Wireless and biography
Defeated information configuration server；
The OAM be the first service gateway configuration it is described first be added information after, by it is described first addition information store to
In described wireless and transmission information configuration server.
8. S11 interface automatic configuration system according to claim 6, which is characterized in that the gateway includes：First
Information receiving module, first information sending module；
The second service gateway receives the first addition information from the OAM by first receiving module；
The second service gateway sends the S11 information to the first movement pipe by the first information sending module
Manage entity.
9. S11 interface automatic configuration system according to claim 6, which is characterized in that the mobility management entity packet
It includes：Second information receiving module, IP address obtain module, S11 interface establishes module；
The first movement management entity is received by second information receiving module from the second service gateway
The S11 information；Second mobility management entity is received by second information receiving module and is moved from described first
The S10 information of mobility management entity；
The IP address obtains the IP address that module is used to that first service gateway described in acquisition of information to be added according to described first；
The S11 interface establishes module for establishing mobility management entity and institute according to the IP address of the first service gateway
State the S11 interface between first service gateway.
10. S11 interface automatic configuration system according to claim 9, which is characterized in that the IP address obtains module packet
It includes：Logical name acquisition submodule, IP address inquire submodule；
The logical name that the logical name acquisition submodule is used to that first service gateway described in acquisition of information to be added according to described first；
The IP address inquiry submodule is used to obtain the first service gateway according to the logical name of the first service gateway
IP address.
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