CN101754491B - Method, system and device for automatically configuring S1-MME interface - Google Patents
Method, system and device for automatically configuring S1-MME interface Download PDFInfo
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- CN101754491B CN101754491B CN200810238836XA CN200810238836A CN101754491B CN 101754491 B CN101754491 B CN 101754491B CN 200810238836X A CN200810238836X A CN 200810238836XA CN 200810238836 A CN200810238836 A CN 200810238836A CN 101754491 B CN101754491 B CN 101754491B
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Abstract
The invention provides a method, a system and a device for automatically configuring an S1-MME interface. The method comprises the steps of: newly adding an MME after an MME Pool is added, establishing an S10 interface with the original MME in the MME Pool; obtaining address information of a transport layer of an evolution base station (ENB) covered by the MME Pool through the newly added MME; establishing a simple control transmission protocol (SCTP) coupling with the ENB by the newly added MME according to the address information of the transport layer of the ENB; detecting the usability of the SCTP coupling by the ENB; and if the SCTP coupling is detected to be useable, then, establishing an application layer connection with the newly added MME by the ENB based on the SCTP coupling. By adopting the method, the system and the device, the automatic configuration of the S1-MME interface under the newly added MME scene can be realized under the traditional network architecture.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to the automatic configuration of S1-MME interface in the evolved packet system network.
Background technology
The system architecture of the evolved packet system of 3GPP Long Term Evolution (EPS, Evolved Packet System) is as shown in Figure 1.According to SAE (System Architecture Evolution; System Architecture Evolution) agreement 3GPP TS23.401v8.2.0; This system comprises EPC (Evolved Packet Core; Evolution block core net) and E-UTRAN (Evolved Universal Terrestrial Radio AccessNetwork, evolved universal terrestrial wireless access network).
Wherein, EPC comprises MME (Mobility Management Entity, Mobility Management Entity), SGW (Serving Gateway, gateway), PGW network element devices such as (PDN Gateway, PDN Gateway).MME is that UE (User Equipment, subscriber equipment) provides the accessibility management, comprises the paging of Idle attitude UE, i.e. tracking of UE shift position or the like.SGW is that UE provides user face data; PGW is the gateway of user plane to the grouped data network PDN, for UE provides the access service towards IP network.MME Pool (Mobility Management Entity pond) is the set that the purpose of load balancing is formed by a plurality of MME; SGW Pool (gateway pond) is the set that the purpose of load balancing is formed by a plurality of SGW.E-UTRAN comprises ENB (Evolved NodeB, evolution base station), and ENB mainly provides the wireless connections of UE and network.
In the said system framework, S10 is two chain of command interfaces between the MME, based on the GTP-C agreement.Between ENB and the MME based on SCTP (Stream Control Transfer Protocol; Stream control transmission protocol) connect through interface S1-MME (S1 interface for Mobility ManagementEntity), S1-MME interface transmits the chain of command signaling between MME and ENB.S1-MME interface or title S1 interface.S1-U is the interface in the user plane between SGW and ENB, based on the GTP agreement.
Based on the above-mentioned EPS network architecture,, when new MME adds network, can cause the automatic allocation problem of S1-MME interface when EPC equipment such as MME and SGW have all been disposed under the scene that finishes.
Be illustrated in figure 2 as the protocol stack of the S1-MME interface of 3GPP TS23.401v830 definition, can know that by Fig. 2 the foundation of S1-MME interface relates to following two aspect establishment of connections:
[SCTP layer]:, set up the SCTP coupling between ENB and MME based on the described method of IETF RFC4960 agreement;
[S1AP layer]: i.e. S1 Application Part.Based on the SCTP coupling that success is set up, between ENB and MME, set up S1-AP and connect.
In the S1-MME interface related protocol TS36.300v8.5.0 of existing 3GPP, do not provide clear and definite scheme for the automatic layoutprocedure of S1-MME interface under the newly-increased MME scene.Therefore need a kind of at present to the S1-MME interface automatic configuration method under the newly-increased scene of MME.
Summary of the invention
The present invention will solve the automatic allocation problem of the S1-MME interface when newly-increased MME adds network.
In order to address the above problem; The present invention proposes a kind of S1-MME interface automatic configuration method; May further comprise the steps: A, newly-increased Mobility Management Entity MME set up the S10 interface with former MME in the said MME Pool after adding Mobility Management Entity pond MME Pool; B, said newly-increased MME obtain the transport layer address information of the evolution base station ENB under the said MME Pool zone covering; C, said newly-increased MME set up the Stream Control Transmission Protocol coupling according to said ENB transport layer address information with said ENB; D, said ENB detect the availability of said SCTP coupling; If E detects said SCTP coupling and can use, then said ENB sets up application layer with said newly-increased MME and is connected based on said SCTP coupling.
Embodiment according to the method for the invention, said step B comprises: said newly-increased MME is through said S10 interface, and the target MME in said MME Pool sends the request of ENB transport layer address information; Said target MME sends to said newly-increased MME with said ENB transport layer address information after receiving the request of said ENB transport layer address information.
Embodiment according to the method for the invention; After said target MME sends to the step of said newly-increased MME with said ENB transport layer address information; Also comprise: whether said newly-increased MME inspection has set up the SCTP coupling with said ENB; If do not set up, then judge it and need set up S1-MME interface with said ENB.
Embodiment according to the method for the invention, said target MME is acquiescence MME.
Embodiment according to the method for the invention, said acquiescence MME adds the MME of said MMEPool for first.
Embodiment according to the method for the invention, said target MME are the MME of picked at random in said MME Pool.
Embodiment according to the method for the invention, said target MME are the minimum MME of load among the said MME Pool.
Embodiment according to the method for the invention, said step C comprises: the application layer indication SCTP layer of said newly-increased MME generates local SCTP instance; The application layer of said newly-increased MME is according to the SCTP coupling of said SCTP instance indication SCTP layer foundation with said ENB.
Embodiment according to the method for the invention, the step that the application layer indication SCTP layer of said newly-increased MME generates local SCTP instance comprises: the application layer of said newly-increased MME is sent initialization primitive to the SCTP layer; Said SCTP layer generates said local SCTP instance according to said initialization primitive; The application layer of said newly-increased MME obtains local SCTP Instance Name.
Embodiment according to the method for the invention, the application layer of said newly-increased MME comprises according to the step of said SCTP instance indication SCTP layer foundation with the SCTP coupling of said ENB: the application layer of said newly-increased MME is sent coupling to said SCTP layer and is set up primitive; Said SCTP layer is set up primitive according to said coupling, uses said local SCTP instance, the SCTP coupling of the SCTP layer of initiation and said ENB.
Embodiment according to the method for the invention, said step D comprises: the application layer of the said ENB of SCTP course of said ENB is sent the SCTP status message; The application layer of said ENB judges according to said SCTP status message whether said SCTP coupling is used by existing application layer connection; If said SCTP coupling is not used by existing application layer connection, then judgement need be set up the application layer connection according to said SCTP coupling; If said SCTP coupling is used by existing application layer connection, judge that then need not set up application layer according to said SCTP coupling connects.
Also comprise after the embodiment according to the method for the invention, said step C: said newly-increased MME obtains the coupling ID of said SCTP coupling.
Embodiment according to the method for the invention, said SCTP status message comprises the coupling ID and the coupling state of said SCTP coupling.
Embodiment according to the method for the invention, said step e comprises: said ENB sends S1 based on said SCTP coupling to said newly-increased MME and sets up request message; After said newly-increased MME receives said S1 and sets up request message, send S1 to said ENB and set up response message.
The invention allows for the automatic system configured of a kind of S1-MME interface, comprise Mobility Management Entity pond MME Pool and evolution base station ENB, said MME Pool comprises at least two Mobility Management Entity MME.Said MME comprises: the S10 interface is set up module, its be used for same MMEPool in other MME set up the S10 interface; ENB transport layer address information acquisition module, it is used to obtain the transport layer address information of the ENB under the said MME Pool zone covering; Module is set up in the Stream Control Transmission Protocol coupling, and it is used for according to said ENB transport layer address information, initiates the SCTP coupling with said ENB; Application layer connection establishment response module, it is used to respond application layer that said ENB sends and connects and set up request message.Said ENB comprises: respond module is set up in the SCTP coupling, and it is used to respond the SCTP coupling foundation request that MME initiates, and sets up the SCTP coupling with said MME; SCTP coupling detection module, it is used to detect the availability of the SCTP coupling between said ENB and the MME; Application layer connects sets up module, and it is used for setting up application layer with said newly-increased MME and being connected based on said SCTP coupling.
According to system implementation example of the present invention, said ENB transport layer address information acquisition module comprises: ENB transport layer address information request module, and it is used for sending the request of said ENB transport layer address information to the target MME of said MME Pool; ENB transport layer address information sending module, it is used to receive the request of said ENB transport layer address information, and responds ENB transport layer address information.
According to system implementation example of the present invention, said SCTP coupling is set up module and is comprised: local SCTP instance generation module, and it is used for generating local SCTP instance according to the indication of the application layer of said MME; Module is set up in the SCTP connection, and it is used for according to the SCTP coupling of said local SCTP instance foundation with said ENB.
According to system implementation example of the present invention, said SCTP coupling detection module comprises: SCTP status message reporting modules, and it is used for the SCTP status message of the SCTP layer of said ENB is sent to the application layer of said ENB; The SCTP condition judgment module, it is used to judge whether said SCTP coupling is used by existing application layer connection, if said SCTP coupling is not used by existing application layer connection, then judgement need be set up the application layer connection according to said SCTP coupling; If said SCTP coupling is used by existing application layer connection, judge that then need not set up application layer according to said SCTP coupling connects.
The invention allows for a kind of Mobility Management Entity MME, comprising: the S10 interface is set up module, its be used for same Mobility Management Entity pond MME Pool in other MME set up the S10 interface; Evolution base station ENB transport layer address information acquisition module, it is used to obtain the transport layer address information of the ENB under the said MME Pool zone covering; Module is set up in the Stream Control Transmission Protocol coupling, and it is used for according to said ENB transport layer address information, initiates the SCTP coupling with said ENB; Application layer connection establishment response module, it is used to respond application layer that said ENB sends and connects and set up request message.
According to the embodiment of MME of the present invention, said ENB transport layer address information acquisition module comprises: ENB transport layer address information request module, and it is used for sending the request of said ENB transport layer address information to the target MME of said MME Pool; ENB transport layer address information sending module, it is used to receive the request of said ENB transport layer address information, and responds ENB transport layer address information.
According to the embodiment of MME of the present invention, said SCTP coupling is set up module and is comprised: local SCTP instance generation module, and it is used for generating local SCTP instance according to the indication of the application layer of said MME; Module is set up in the SCTP connection, and it is used for according to the SCTP coupling of said local SCTP instance foundation with said ENB.
The invention allows for a kind of evolution base station ENB, comprising: module is set up in the Stream Control Transmission Protocol coupling, and it is used to respond the SCTP coupling foundation request that Mobility Management Entity MME initiates, and sets up the SCTP coupling with said MME; SCTP coupling detection module, it is used to detect the availability of the SCTP coupling between said ENB and the MME; Application layer connects sets up module, and it is used for setting up application layer with said newly-increased MME and being connected based on said SCTP coupling.
Embodiment according to ENB of the present invention; Said SCTP coupling detection module comprises: SCTP status message reporting modules; It is used for the SCTP status message of the SCTP layer of said ENB is sent to the application layer of said ENB, the SCTP condition judgment module, and it is used to judge whether said SCTP coupling is used by existing application layer connection; If said SCTP coupling is not used by existing application layer connection, then judgement need be set up the application layer connection according to said SCTP coupling; If said SCTP coupling is used by existing application layer connection, judge that then need not set up application layer according to said SCTP coupling connects.
Adopt method of the present invention, system, MME and ENB, can under the existing systems framework, be implemented in the automatic configuration that new MME adds the S1-MME interface under the scene.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the SAE system architecture diagram;
Fig. 2 is a S1-MME interface protocol stack sketch map;
Fig. 3 is the flow chart of one embodiment of the invention;
Fig. 4 obtains the flow chart of ENB transport layer address information for the newly-increased MME of one embodiment of the invention;
Fig. 5 is that the newly-increased MME of one embodiment of the invention obtains ENB transport layer address information and the process sketch map is set up in initiation SCTP coupling;
Fig. 6 is the flow chart that the SCTP coupling of one embodiment of the invention is set up;
Fig. 7 is the SCTP signalling diagram of one embodiment of the invention;
Fig. 8 is the flow chart that the ENB of one embodiment of the invention detects SCTP coupling availability;
Fig. 9 sets up the sketch map that application layer is connected for the ENB of one embodiment of the invention with MME;
Figure 10 is the illustrative view of functional configuration of the MME of one embodiment of the invention;
Figure 11 is the illustrative view of functional configuration of the ENB of one embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
One embodiment of the present of invention have proposed a kind of method of automatic configuration 300 of S1-MME interface, are illustrated in figure 3 as the flow chart of this embodiment 300.Said method 300 comprises:
S301, newly-increased MME set up the S10 interface with former MME in the said MME Pool after adding MME Pool.
S302, said newly-increased MME obtain the transport layer address information of the evolution base station ENB under the said MME Pool zone covering.
S303, said newly-increased MME set up the SCTP coupling according to said ENB transport layer address information with said ENB.
S304, said ENB detect the availability of said SCTP coupling.
If S305 detects said SCTP coupling and can use, then said ENB sets up application layer with said newly-increased MME and is connected based on said SCTP coupling.
In method of the present invention, the IP address of MME can be disposed or dynamically obtained through the DHCP method by OAM (Operations, Administration & Maintenance, Operations, Administration and Maintenance).
As an embodiment of said method, as shown in Figure 4, S302 can may further comprise the steps:
S3021: configuration ENB transport layer address information request message, newly-increased MME is through the S10 interface between MME, and in MME Pool one has been in the transport layer address of all ENBs in the MME request MMEPool territory of service state, i.e. IP address.
As one embodiment of the present of invention, can be through coming at S10 interface definition related news " ENBTRANSFER INFORMATION REQUEST (request of ENB transport layer address information) " to a transport layer address information from the MME request ENB of service state.
As one embodiment of the present of invention, can bear the Processing tasks of " ENBTRANSFER INFORMATION REQUEST " message through a selected target MME, be called target MME among the present invention.The selection of target MME can be adopted following three kinds of schemes:
(1) acquiescence MME: specify a MME as target MME among a plurality of MME in MME Pool, for example, the optional MME that first adds MME Pool is as target MME.
(2) MME at random: MME of picked at random is as target MME in MME Pool.Adopt this scheme, can be with the processing load random dispersion of " MME Pool Member Update.ADD (MME_NAME) " message.
(3) the minimum MME that loads: choose the lighter MME of load as target MME according to the information on load of each MME among the MME Pool.Adopt this scheme to help the load balancing between MME.
S3022: target MME is after receiving " ENB TRANSFER INFORMAT1ONREQUEST " message; Respond " ENB TRANSFER INFORMATIONRESPONSE (response of ENB transport layer address information) " message to newly-increased MME, it is as shown in table 1 wherein to carry ENB transport layer address:
The tabulation of table 1:ENB transport layer address information
| ENB?TRANSFER?ADDRESS?INFORMATION?LIST |
| >ENB?ID>ENB?IP?Address?List>>ENB?IP?Address |
S3023: newly-increased MME obtains after the transport layer address information of ENB, check under this address ENB whether with oneself set up SCTP and be connected.If do not connect, then be necessary and this address under ENB between set up S1-MME interface.
The newly-increased MME that is illustrated in figure 5 as one embodiment of the invention obtains ENB transport layer address information and initiates the SCTP coupling and set up the process sketch map.
As one embodiment of the present of invention, as shown in Figure 6, S303 can may further comprise the steps:
S3031: the application layer indication SCTP layer of newly-increased MME generates local SCTP instance.
Particularly, the application layer of newly-increased MME is sent initialization primitive " INITIALIZE " to its SCTP layer, generates local SCTP instance.After local SCTP instance generated, application layer can obtain corresponding local SCTP Instance Name (LOCAL SCTP INSTANCE NAME).
S3032: the application layer of newly-increased MME is according to the SCTP coupling of said SCTP instance indication SCTP layer foundation with said ENB.
Particularly, application layer is obtained after the local SCTP Instance Name, and newly-increased MME will use this SCTP instance initiation sensing to be come the SCTP of the specific ENB of mark to connect the process of setting up by the transport layer address of ENB.The SCTP that the application layer of promptly newly-increased MME indicates its SCTP layer to begin to set up with opposite end ENB through primitive " ASSOCIATION " is connected.
As one embodiment of the present of invention, the primitive that MME application layer (AP) indicates its SCTP layer to set up the SCTP coupling is following:
ASSOCIATION(
LOCAL SCTP INSTANCE NAME, //the SCTP initialization procedure obtains local SCTP Instance Name;
DESTINATION TRANSPORT ADDRESS, transport layer address, // SCTP coupling yet to be built opposite end
...)
→ ASSOCIATION ID // SCTP coupling ID that the SCTP coupling is obtained when setting up successfully (being set up originating end by the SCTP coupling obtains)
As one embodiment of the present of invention; As shown in Figure 5; The SCTP layer of newly-increased MME is at the ASSOCIATION primitive of receiving that application layer issues, and promptly the destination address DESTINATION TRANSPORT ADDRESS according to appointment in the primitive uses the SCTP coupling of the SCTP layer of local SCTP instance LOCAL SCTPINSTANCE NAME initiation sensing opposite end ENB to set up process.Back MME application layer is set up in success can obtain coupling ID recited above, i.e. ASSOCIATION ID.
As one embodiment of the present of invention, as shown in Figure 7, the SCTP layer is set up the SCTP coupling between MME and ENB through 4-Way Handshake, and the signaling of relevant SCTP layer is following:
1) newly-increased MME sends initial message " INIT " to opposite end ENB;
2) opposite end ENB responds the initialization carry its COOKIE and receives the response " INIT ACK ", and wherein COOKIE means cooky, refers to the local attribute information of node;
3) MME responds to opposite end ENB and carries receive the response " the COOKIE ECHO " that goes on foot the COOKIE that receives; When receiving this, ENB receives the response; And after the check COOKIE correctness; Can accomplish the local SCTP coupling of ENB and set up required configuration, and get into " SCTPASSOCIATION ESTABLISHED (the SCTP coupling is set up and accomplished) " state;
4) after ENB gets into " SCTP ASSOCIATION ESTABLISHED " state, can respond " COOKIE ACK " to the MME side; And after MME receives this response, promptly accomplish its local coupling and set up required configuration, and " the SCTP ASSOCIATION ESTABLISHED " state of entering.
After accomplishing above-mentioned steps, the SCTP coupling between newly-increased MME and the appointment ENB is set up and is accomplished.
When completion is set up in the SCTP coupling between MME and ENB, initiate because the SCTP coupling request of setting up is MME, so the application layer of MME just can be known SCTP coupling successfully foundation when getting access to SCTP coupling ID.And ENB is the passive side, and it needs extra testing mechanism to find whether the SCTP coupling has set up success.
As one embodiment of the present of invention, as shown in Figure 8, the S304 in the method 300 of the present invention comprises:
S3041: the application layer of the said ENB of SCTP course of said ENB is sent the SCTP status message;
S3042: the application layer of said ENB judges according to said SCTP status message whether said SCTP coupling is used by existing application layer connection.
S3043:, judge that then need not set up application layer according to said SCTP coupling connects if said SCTP coupling is used by existing application layer connection.
S3044: if said SCTP coupling is not used by existing application layer connection, then judgement need be set up the application layer connection according to said SCTP coupling.
An instance as the foregoing description; When the SCTP of ENB layer the SCTP coupling that response MME initiates set up get into " SCTP ASSOCIATION ESTABLISHED " state in the request process after, its SCTP layer should report SCTP status message " COMMUNICATIONUP NOTIFICATION " to application layer.Carry two key parameters in this message:
Coupling ID, i.e. ASSOCIATION ID;
Coupling state, STATUS;
The application layer of ENB is being received the Indication message that the SCTP layer reports " COMMUNICATIONUP NOTIFICATION ", just learns that the SCTP coupling of " ASSOCIATION ID " sign is available.
The application layer of ENB needs further to judge whether the STCP coupling of being somebody's turn to do " ASSOCIATION ID " mark has been associated with existing S1AP (S1 Application Part) and has connected.This is because " COMMUNICATION UP NOTIFICATION " also can make the same indication that reports to setting up SCTP coupling returning to form after losing, and be not only the SCTP coupling just the process of building can trigger " COMMUNICATION UP NOTIFICATION " information reporting.
As one embodiment of the present of invention, the processing of ENB application layer can be done following statement:
Whether the SCTP coupling of the application inspection of ENB " ASSOCIATION ID " indication is used by existing S1AP connection.If have, can think that then this SCTP coupling is that the SCTP coupling of losing that original S1AP connects " recovers " again, just can not trigger new S1AP:S1SETUPREQUEST process; If no, think that then this SCTP coupling is newly to set up coupling.And be necessary to initiate new S1AP:S1 SETUP REQUEST process based on this SCTP coupling, connect so that set up S1-AP, and then accomplish the automatic configuration of S1-MME interface.
When newly setting up coupling, then ENB can initiate the S1-AP connection to MME based on this newly-built SCTP coupling and set up process, i.e. S305 in the method 300 in the STCP coupling of confirming " ASSOCIATION ID " mark.As one embodiment of the present of invention, as shown in Figure 9, S305 can may further comprise the steps:
S3051:ENB sends S1 based on said SCTP coupling to said newly-increased MME and sets up request message.
For example, ENB sends [S1AP] S1SETUP REQUEST request message to MME, and it carries two following key parameters: A) GLOBAL ENB ID; B) ENB NAME.
S3052: after newly-increased MME receives said S1 and sets up request message, send S1 to said ENB and set up response message.
For example, MME responds [S1AP] S1 SETUP RESPONSE message, wherein carries two following key parameters: A) MME NAME; B) SERVED GUMMEI.
As one embodiment of the present of invention, the order that SCTP sends S1AP message bag is [SCTP] SEND, and its parameter format is following:
[SCTP]SEND(ASSCIATION?ID，BUFFER?ADDRESS，BYTE?COUNT)；
Receive successful response [S1AP] the S1SETUP RESPONSE message of MME as ENB after, then show the S1-MME interface configuration successful between this ENB and newly-increased MME.
One embodiment of the present of invention have proposed the automatic system configured of a kind of S1-MME interface, comprise MME Pool and ENB, and said MME Pool comprises at least two MME.
Wherein, MME comprises: the S10 interface is set up module, its be used for same MME Pool in other MME set up the S10 interface; ENB transport layer address information acquisition module, it is used to obtain the transport layer address information of the ENB under the said MME Pool zone covering; Module is set up in the SCTP coupling, and it is used for according to ENB transport layer address information, initiates the SCTP coupling with ENB; Application layer connection establishment response module, it is used to respond application layer that ENB sends and connects and set up request message.
ENB in the said system comprises: respond module is set up in the SCTP coupling, and it is used to respond the SCTP coupling foundation request that MME initiates, and sets up the SCTP coupling with MME; SCTP coupling detection module, it is used to detect the availability of the SCTP coupling between ENB and the MME; Application layer connects sets up module, and it is used for the coupling based on SCTP, sets up application layer with newly-increased MME and is connected.
In said system, ENB transport layer address information acquisition module comprises: ENB transport layer address information request module, and it is used for sending the request of ENB transport layer address information to the target MME of MME Pool; ENB transport layer address information sending module, it is used to receive the request of ENB transport layer address information, and responds ENB transport layer address information.
In said system, the SCTP coupling is set up module and is comprised: local SCTP instance generation module, and it is used for generating local SCTP instance according to the indication of the application layer of said MME; Module is set up in the SCTP connection, and it is used for according to the SCTP coupling of local SCTP instance foundation with ENB.
In said system, SCTP coupling detection module comprises: SCTP status message reporting modules, and it is used for the SCTP status message of the SCTP layer of ENB is sent to the application layer of ENB; The SCTP condition judgment module, it is used to judge whether the SCTP coupling is used by existing application layer connection, if said SCTP coupling is not used by existing application layer connection, then judgement need be set up the application layer connection according to said SCTP coupling; If said SCTP coupling is used by existing application layer connection, judge that then need not set up application layer according to said SCTP coupling connects.
One embodiment of the present of invention have proposed a kind of MME, and are shown in figure 10, and this MME comprises: the S10 interface is set up module, its be used for same MME Pool in other MME set up the S10 interface; ENB transport layer address information acquisition module, it is used to obtain the transport layer address information of the ENB under the said MME Pool zone covering; Module is set up in the SCTP coupling, and it is used for according to said ENB transport layer address information, initiates the SCTP coupling with said ENB; Application layer connection establishment response module, it is used to respond application layer that said ENB sends and connects and set up request message.
In above-mentioned MME, ENB transport layer address information acquisition module comprises: ENB transport layer address information request module, and it is used for sending the request of said ENB transport layer address information to the target MME of said MME Pool; ENB transport layer address information sending module, it is used to receive the request of said ENB transport layer address information, and responds ENB transport layer address information.
In above-mentioned MME, the SCTP coupling is set up module and is comprised: local SCTP instance generation module, and it is used for generating local SCTP instance according to the indication of the application layer of said MME; Module is set up in the SCTP connection, and it is used for according to the SCTP coupling of said local SCTP instance foundation with said ENB.
One embodiment of the present of invention have proposed a kind of ENB, and are shown in figure 11, and this ENB comprises: module is set up in the SCTP coupling, and it is used to respond the SCTP coupling foundation request that MME initiates, and sets up the SCTP coupling with said MME; SCTP coupling detection module, it is used to detect the availability of the SCTP coupling between said ENB and the MME; Application layer connects sets up module, and it is used for setting up application layer with said newly-increased MME and being connected based on said SCTP coupling.
In above-mentioned ENB; SCTP coupling detection module comprises: SCTP status message reporting modules; It is used for the SCTP status message of the SCTP layer of said ENB is sent to the application layer of said ENB, the SCTP condition judgment module, and it is used to judge whether said SCTP coupling is used by existing application layer connection; If said SCTP coupling is not used by existing application layer connection, then judgement need be set up the application layer connection according to said SCTP coupling; If said SCTP coupling is used by existing application layer connection, judge that then need not set up application layer according to said SCTP coupling connects.
Method, system and device of the present invention have proposed a kind ofly when newly-increased MME adds network, carry out the S1-MME interface feasible program of configuration automatically, and this scheme are easy to realize based on original system architecture.
Should be understood that; Various symbol logos, method name, message name and the message definition mentioned in the embodiments of the invention; Only be one embodiment of the present invention; In practical implementation, can use other titles and the symbol that can express same or similar implication, these are all within protection scope of the present invention.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present invention is accompanying claims and be equal to and limit to these embodiment.
Claims (23)
1. a S1-MME interface automatic configuration method is characterized in that, may further comprise the steps:
A, newly-increased Mobility Management Entity MME set up the S10 interface with former MME in the said MME Pool after adding Mobility Management Entity pond MME Pool;
B, said newly-increased MME obtain the transport layer address information of the evolution base station ENB under the said MME Pool zone covering;
C, said newly-increased MME set up the Stream Control Transmission Protocol coupling according to said ENB transport layer address information with said ENB;
D, said ENB detect the availability of said SCTP coupling;
If E detects said SCTP coupling and can use, then said ENB sets up application layer with said newly-increased MME and is connected based on said SCTP coupling.
2. method according to claim 1 is characterized in that, said step B comprises:
Said newly-increased MME is through said S10 interface, and the target MME in said MME Pool sends the request of ENB transport layer address information;
Said target MME sends to said newly-increased MME with said ENB transport layer address information after receiving the request of said ENB transport layer address information.
3. method according to claim 2 is characterized in that, after said target MME sends to the step of said newly-increased MME with said ENB transport layer address information, also comprises:
Whether said newly-increased MME inspection has set up the SCTP coupling with said ENB, if do not set up, then judges it and need set up S1-MME interface with said ENB.
4. method according to claim 2 is characterized in that,
Said target MME is acquiescence MME.
5. method according to claim 4 is characterized in that,
Said acquiescence MME adds the MME of said MME Pool for first.
6. method according to claim 2 is characterized in that,
Said target MME is the MME of picked at random in said MME Pool.
7. method according to claim 2 is characterized in that,
Said target MME is the minimum MME of load among the said MME Pool.
8. method according to claim 1 is characterized in that, said step C comprises:
The application layer indication SCTP layer of said newly-increased MME generates local SCTP instance;
The application layer of said newly-increased MME is according to the SCTP coupling of said SCTP instance indication SCTP layer foundation with said ENB.
9. method according to claim 8 is characterized in that, the step that the application layer indication SCTP layer of said newly-increased MME generates local SCTP instance comprises:
The application layer of said newly-increased MME is sent initialization primitive to the SCTP layer;
Said SCTP layer generates said local SCTP instance according to said initialization primitive;
The application layer of said newly-increased MME obtains local SCTP Instance Name.
10. method according to claim 8 is characterized in that, the application layer of said newly-increased MME comprises according to the step of said SCTP instance indication SCTP layer foundation with the SCTP coupling of said ENB:
The application layer of said newly-increased MME is sent coupling to said SCTP layer and is set up primitive;
Said SCTP layer is set up primitive according to said coupling, uses said local SCTP instance, the SCTP coupling of the SCTP layer of initiation and said ENB.
11. method according to claim 1 is characterized in that, said step D comprises:
The application layer of the said ENB of SCTP course of said ENB is sent the SCTP status message;
The application layer of said ENB judges according to said SCTP status message whether said SCTP coupling is used by existing application layer connection;
If said SCTP coupling is not used by existing application layer connection, then judgement need be set up the application layer connection according to said SCTP coupling;
If said SCTP coupling is used by existing application layer connection, judge that then need not set up application layer according to said SCTP coupling connects.
12. method according to claim 11 is characterized in that, also comprises after the said step C:
Said newly-increased MME obtains the coupling ID of said SCTP coupling.
13. method according to claim 12 is characterized in that,
Said SCTP status message comprises the coupling ID and the coupling state of said SCTP coupling.
14. method according to claim 1 is characterized in that, said step e comprises:
Said ENB sends S1 based on said SCTP coupling to said newly-increased MME and sets up request message;
After said newly-increased MME receives said S1 and sets up request message, send S1 to said ENB and set up response message.
15. the automatic system configured of S1-MME interface is characterized in that, comprises Mobility Management Entity pond MME Pool and evolution base station ENB, said MME Pool comprises at least two Mobility Management Entity MME,
Said MME comprises:
The S10 interface is set up module, its be used for same MME Pool in other MME set up the S10 interface;
ENB transport layer address information acquisition module, it is used to obtain the transport layer address information of the ENB under the said MME Pool zone covering;
Module is set up in the Stream Control Transmission Protocol coupling, and it is used for according to said ENB transport layer address information, initiates the SCTP coupling with said ENB;
Application layer connection establishment response module, it is used to respond application layer that said ENB sends and connects and set up request message,
Said ENB comprises:
Respond module is set up in the SCTP coupling, and it is used to respond the SCTP coupling foundation request that MME initiates, and sets up the SCTP coupling with said MME;
SCTP coupling detection module, it is used to detect the availability of the SCTP coupling between said ENB and the MME;
Application layer connects sets up module, and it is used for setting up application layer with newly-increased MME and being connected based on said SCTP coupling.
16. system according to claim 15 is characterized in that, said ENB transport layer address information acquisition module comprises:
ENB transport layer address information request module, it is used for sending the request of said ENB transport layer address information to the target MME of said MME Pool;
ENB transport layer address information sending module, it is used to receive the request of said ENB transport layer address information, and responds ENB transport layer address information.
17. system according to claim 15 is characterized in that, said SCTP coupling is set up module and is comprised:
Local SCTP instance generation module, it is used for generating local SCTP instance according to the indication of the application layer of said MME;
Module is set up in the SCTP connection, and it is used for according to the SCTP coupling of said local SCTP instance foundation with said ENB.
18. system according to claim 15 is characterized in that, said SCTP coupling detection module comprises:
SCTP status message reporting modules, it is used for the SCTP status message of the SCTP layer of said ENB is sent to the application layer of said ENB,
The SCTP condition judgment module, it is used to judge whether said SCTP coupling is used by existing application layer connection,
If said SCTP coupling is not used by existing application layer connection, then judgement need be set up the application layer connection according to said SCTP coupling;
If said SCTP coupling is used by existing application layer connection, judge that then need not set up application layer according to said SCTP coupling connects.
19. a Mobility Management Entity MME is characterized in that, comprising:
The S10 interface is set up module, its be used for same Mobility Management Entity pond MME Pool in other MME set up the S10 interface;
Evolution base station ENB transport layer address information acquisition module, it is used to obtain the transport layer address information of the ENB under the said MME Pool zone covering;
Module is set up in the Stream Control Transmission Protocol coupling, and it is used for according to said ENB transport layer address information, initiates the SCTP coupling with said ENB;
Application layer connection establishment response module, it is used to respond application layer that said ENB sends and connects and set up request message.
20. MME according to claim 19 is characterized in that, said ENB transport layer address information acquisition module comprises:
ENB transport layer address information request module, it is used for sending the request of said ENB transport layer address information to the target MME of said MME Pool;
ENB transport layer address information sending module, it is used to receive the request of said ENB transport layer address information, and responds ENB transport layer address information.
21. MME according to claim 19 is characterized in that, said SCTP coupling is set up module and is comprised:
Local SCTP instance generation module, it is used for generating local SCTP instance according to the indication of the application layer of said MME;
Module is set up in the SCTP connection, and it is used for according to the SCTP coupling of said local SCTP instance foundation with said ENB.
22. an evolution base station ENB is characterized in that, comprising:
Module is set up in the Stream Control Transmission Protocol coupling, and it is used to respond the SCTP coupling foundation request that Mobility Management Entity MME initiates, and sets up the SCTP coupling with said MME;
SCTP coupling detection module, it is used to detect the availability of the SCTP coupling between said ENB and the MME;
Application layer connects sets up module, and it is used for setting up application layer with newly-increased MME and being connected based on said SCTP coupling.
23. ENB according to claim 22 is characterized in that, said SCTP coupling detection module comprises:
SCTP status message reporting modules, it is used for the SCTP status message of the SCTP layer of said ENB is sent to the application layer of said ENB,
The SCTP condition judgment module, it is used to judge whether said SCTP coupling is used by existing application layer connection,
If said SCTP coupling is not used by existing application layer connection, then judgement need be set up the application layer connection according to said SCTP coupling;
If said SCTP coupling is used by existing application layer connection, judge that then need not set up application layer according to said SCTP coupling connects.
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| US8837392B2 (en) * | 2010-05-10 | 2014-09-16 | Telefonaktiebolaget L M Ericsson (Publ) | Application layer communication via single radio block access |
| CN102811463B (en) * | 2012-07-27 | 2015-02-25 | 大唐移动通信设备有限公司 | Method and device for load sharing of MME (mobile management entity) network element |
| CN106612532B (en) * | 2015-10-21 | 2019-11-29 | 大唐移动通信设备有限公司 | The method and apparatus of ENB access MME in a kind of LTE system |
| WO2019056206A1 (en) * | 2017-09-20 | 2019-03-28 | Nokia Technologies Oy | Multi-node support for sctp communications |
| CN113453378B (en) * | 2020-03-26 | 2023-06-16 | 成都鼎桥通信技术有限公司 | Method and device for establishing S1 application protocol link |
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