CN101540789B - Method and device for allocating mobile-node network address identifiers - Google Patents
Method and device for allocating mobile-node network address identifiers Download PDFInfo
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Abstract
The invention discloses a method for allocating mobile-node network address identifiers MN-NAI. The method comprises the following steps that: a mobility management entity MME sends a protocol indication message to a Serving gateway GW in order to instruct the Serving GW to adopt a specified protocol type; when the specified protocol type is a proxy mobile IP protocol PMIP, the Serving GW constructs and sets an MN-NAI in a Proxy Binding Update message, and sends the Proxy Binding Update message to a packet data network gateway PDN GW so as to establish a PMIP tunnel. The invention simultaneously discloses a device for realizing the method, and service gateway equipment comprising the device. The embodiment of the invention defines the allocation of the MN-NAI. The invention has the advantages of powerfully replenishing the prior communication process and communication proposal and perfecting system functions.
Description
Technical field
The present invention relates to the mobile communication technology field, more particularly, relate to distribution method and the device of a kind of MN-NAI (mobile-node network address identifiers).
Background technology
3G PP has defined EPS (Evolved Packet System, the packet switching system of evolution) architecture, as shown in Figure 1, wherein, MM E (Mobility Management Entity, Mobility Management Entity) mainly is responsible for mobile management and session management, Serving GW (gateway) is the user plane IAD that subscriber equipment inserts the EPS core net, PDN GW (Packet Data NetworkGW, grouped data network gateway) is the gateway that the EPS system inserts outside PDN network, PCRF (Policyand Charging Rules Function, the "Policy and Charging Rules Function entity) is between outside PDN network and the PDN GW, is used for server data stream is carried out strategy and charging regulation control.
Interface between Serving GW and the PDN GW-S5/S8 interface can adopt GTP (GPRSTunneling Protocol, GPRS Tunnel Protocol), also can adopt PMIPV6 (Proxy Mobile IP Version 6, proxy mobile IPv 6) agreement according to the deployment of operator.
When the S5/S8 interface adopts the PMIPV6 agreement, in the UE attaching process, Serving GW sends Proxy binding Update message to PDNGW and sets up tunnel between Serving GW and the PDN GW, carry the MN-NAI that is used to distinguish U E in the Proxy binding Update message, determine that in agreement 23.402 MN-NAI should form according to the definition in the agreement 23.003.Simultaneously, the part of the user name among the MN-NAI should be with IMSI (International Mobile Subscriber Identity, international mobile subscriber identification code) for constructing on the basis.
But in the process that UE adheres to, the distribution method of the MN-NAI of sign UE does not spell out.
Summary of the invention
In view of this, the invention provides distribution method and the device of a kind of MN-NAI, with the concrete method of salary distribution of clear and definite MN-NAI.
The present invention is achieved in that
The distribution method of a kind of mobile-node network address identifiers MN-NAI comprises:
Mobile management entity MME sends Create default bearerrequest message to gateway Serving GW, is obtained the agreement indication information that adopts the protocol type of appointment with indication Serving GW from Create default bearer request message by Serving GW;
When the protocol type of described appointment during for the mobile I P agreement PMI P of agency, Serving GW constructs MN-NAI, it is arranged in the packet switching system EPS bearer context of the evolution in the agent binding update Proxy Binding Update message, send to grouped data network gateway PDN GW, to set up the PMIP tunnel.
Preferably, also comprise:
When the protocol type of described appointment was GPRS Tunnel Protocol GTP, Serving GW sent default bearing request to create message, sets up GTP tunnel with PDN GW.
Preferably, described agreement indication information is carried in the default bearing request to create message.
The present invention discloses the distributor of a kind of mobile-node network address identifiers MN-NAI, comprising:
Information receiving unit is used to receive the Create defaultbearer request message that mobile management entity MM E sends;
The agreement determining unit is used for obtaining the agreement indication information by Serving GW from Create default bearer request message, determines to adopt the type of agreement according to described agreement indication information;
First processing unit, when being used for described agreement and determining that type determine to adopt proxy mobile IP protocol PMIP agreement, make up MN-NAI, it is arranged in the packet switching system EPS bearer context of the evolution in the agent binding update Proxy Binding Update message, send to grouped data network gateway PDN GW, to set up the PMIP tunnel.
Preferably, also comprise:
Second processing unit is used for sending default bearing request to create message when described agreement determining unit is determined to adopt GPRS Tunnel Protocol GTP, sets up GTP tunnel with PDN GW.
Preferably, described agreement indication information is carried in the default bearing request to create message.
The present invention discloses a kind of gateway Serving GW equipment, have the distributor of any described mobile-node network address identifiers MN-NAI of claim 5-8.
In addition, the present invention also discloses a kind of communication network, comprise mobile management entity MME, gateway Serving GW and grouped data network gateway PDN GW.
Described MME comprises:
Information transmitting unit is used to send Create default bearer request message;
Described Serving GW comprises:
The distributor of mobile-node network address identifiers MN-NAI, be used for obtaining the agreement indication information from Create defaultbearer request message, determine the protocol type of employing according to described agreement indication information, and when described protocol type is proxy mobile IP protocol PMIP, make up MN-NAI, it is arranged in the agent binding update Proxy Binding Update message, sends to grouped data network gateway PDN GW, to set up the PMIP tunnel.
From above-mentioned technical scheme as can be seen, unlike the prior art, in the process that UE adheres to that the embodiment of the invention is clear and definite, when the S5/S8 interface adopts the PMIP agreement, finish this method of salary distribution of distribution to the MN-NAI of sign UE by Serving GW.And, provide by MME and sent indication information to Serving GW, adopt the mode of which kind of agreement with indication Serving GW.Existing communication process and communication plan are carried out strong replenishing, carried out perfect the function of system.
Description of drawings
Fig. 1 is the architectural block diagram of EPS;
Fig. 2 is the flow chart of prior art one;
Fig. 3 is the flow chart of prior art two;
Fig. 4 is the flow chart of the embodiment of the distribution method of a kind of mobile-node network address identifiers of the present invention;
Fig. 5 is the structural representation that can be used for realizing the device of above-mentioned certain methods embodiment;
Fig. 6 is the structural representation that can be used for realizing the device of above-mentioned other methods embodiment;
Fig. 7 is the communication system architecture schematic diagram that comprises said apparatus.
Embodiment
When UE is attached to the EPS system, MME (Mobility Management Entity, mobile management entity) can select Serving GW, if this Serving GW had both supported the PMIP agreement, support the GTP agreement again, then MME need notify Serving GW S5/S8 interface to use which kind of agreement.
There are following two kinds of situations:
If situation 1 S5/S8 interface adopts the GTP agreement, the process when UE is attached to the EPS system specifically may further comprise the steps as shown in Figure 2:
Step S11, UE send to eNodeB and adhere to request Attach Request.
Step S12, eNodeB transmit the described request Attach Request that adheres to new MME.
Step S13a, new MME send to old MME/SGSN (Serving GPRS Support Node, service general Packet data service support node) and identify request Identification Request.
Step S13b, old MME/SGSN feedback authentication response Identification Response.
Step S14a, new MME send authentication request Identification Request to UE.
Step S14b, UE are to new MME feedback authentication response Identification Response.
Step S15a, UE, new MME and HSS (Home Subscriber Server, home subscriber server) carry out authentification of user and security parameter procurement process (Authentication/Securty/MEIdentity).
Carry out customer equipment identification inspection (M E Identity Check) between step S15b, new MME and the EIR (Equipment Identity Register, equipment identity register).
Step S16a, new MME send deleting bearing request Delete Bearer Request to ServingGW, and are transmitted to PDN GW by Serving GW.
Step S16b, PDN GW send deleting bearing and respond the GW to Serving, and feed back to new MME by Serving GW.
Carry out strategy and charging regulation mutual (PCRF interaction) between step S16c, PDN GW and the PCRF (Policy and Charging Rules Function, "Policy and Charging Rules Function entity).
Step S17, new MME send position updating request Update Location to HSS.
Step S18a, HSS give old MME/SGSN to sending Cancel Location (canceling position) message.
Step S18b, old MME/SGSN are to this HSS feedback Cancel Location Ack (canceling position response).
Step S19a, old MME/SGSN send deleting bearing request DeleteBearer Request to Serving GW, and Serving GW sends Delete Bearer Request to PDN GW.
Step S19b, PDN GW are to Serving GW feedback deleting bearing response Delete BearerResponse, and Serving GW is to old MME/SGSN feedback Delete Bearer Response.
Carry out PCRF interaction between step S19c, PDN GW and the PCRF.
Step S20a, HSS send Insert Subscriber Data (insertion subscription data) message to new MME.
Step S20b, new MME are to the affirmation message of HSS feedback Insert Subscriber Data information.
Step S21, HSS send the position to new MME and upgrade affirmation Update Location Ack, upgrade to confirm the position.
Step S22, new MME create default bearing request message Create DefaultBearer Request to Serving GW.
Step S23, Serving GW send Create Default BearerRequest to PDN GW.
Carry out PCRF interaction between step S24, PDN GW and the PCRF.
Step S25a, PDN GW create default bearing response message CreateDefault Bearer Response to Serving GW feedback.
Step S25b, PDN GW send First Downlink Data to Serving GW.
Step S26, Serving GW are to new MME feedback Create Default BearerResponse.
Step S27, new MME receive to the eNodeB feedback and adhere to information requested Attach Accept.
Step S28, eNodeB send radio bearer to U E and set up request Radio Bearerestablishment request.
Step S29, UE set up response Radio Bearerestablishment response to eNodeB feedback radio bearer, set up to confirm radio bearer.
Step S30, eNodeB send to adhere to new MME and finish information A ttach Complete.
Step S31, UE send the first upstream data First Uplink Data to Serving GW, and Serving GW sends First Uplink Data to PDN GW.
Step S32, new MME send more new bearer request Update BearerRequest to Serving GW.
Step S33, Serving GW feed back more new bearer response Update BearerResponse to new MME.
Step S34, PDN GW send first downstream data First DownlinkData to Serving GW, and Serving GW sends First Downlink Data to UE.
Step S35, new MME send position updating request Update Location Request to HSS.
Step S36, HSS upgrade response Update LocationResponse to new MME feedback position.
Among the above-mentioned steps S23, Serving GW sends and creates default bearing request message CreateDefault Bearer Request to PDN GW, sets up Default and is carried on use IMSI differentiation user in the described establishment default bearing request message.
If situation 2 S5/S8 interfaces adopt PMI PV6 agreement, the process when UE is attached to the EPS system specifically may further comprise the steps as shown in Figure 3:
According to TS 23.401, the regulation of Figure5.3.2-1 is carried out attach procedure, then, enters steps A, comprising before the steps A:
Steps A .1, Serving GW send gateway control session termination message Gateway Control Session Termination to vPCRF (visited network strategy and charging regulation entity)/hPCRF (home network strategy and charging regulation entity).
Steps A .2, vPCRF/hPCRF are to the affirmation information A cknowledge Gateway Control Session Termination of Serving GW feedback gateway control session termination message.
Steps A .3, Serving GW send Proxy Binding Update to PDN GW.
Steps A .4, PDN GW send Indication of IP-CAN SessionTermination (IP connects access to network conversation and stops indication) to vPCRF/hPCRF.
Steps A .5, vPCRF/hPCRF are to PDN GW feedback Acknowledge IP-CANSession Termination (I P connects the access to network conversation terminate-ack).
Steps A .6, PDN GW are to Serving GW feedback Proxy Binding Ack (agent binding update response).
According to TS 23.401, the regulation of Figure5.3.2-1 is carried out attach procedure between steps A and the step B, after enter step B:
Comprise step B.1-step B.6, A.1-steps A .6 is identical with above-mentioned steps.
Afterwards, according to TS 23.401, after the regulation of Figure5.3.2-1 is carried out correlation step, enter step C:
Step C.1-step C.4 A.3-steps A .6 is identical with above-mentioned steps.
Step C.5, Serving GW sends gateway control session to vPCRF/hPCRF and set up information Gateway Control Session Establishment.
Step C.6, vPCRF/h PCRF sends PCC Decision Provision (strategy and charging regulation are controlled and provided) message to PDN GW.
Step C.7, PDN GW vPCRF/hPCRF feedback PCC Decision Ack (strategy and charging regulation control response) message.
Step C.8, the response message Acknowledge Gateway Control Session Establishment that sets up to Serving GW feedback gateway control session of vPCRF/hPCRF.
According to TS 23.401, the regulation of Figure5.3.2-1 is carried out correlation step afterwards.
Step C.1 in, Serving GW sends Proxy Binging Update message to PDN GW, sets up default bearer (default bearing) to notify this PDN GW, uses MN-NAI sign UE in this Proxy BingingUpdate message.
From above-mentioned Fig. 2 and flow process shown in Figure 3, as can be seen, prior art is in U E attaching process, and the distribution method that is used to identify the MN-NAI of U E does not spell out, and this is a defective of prior art standard.
Based on solving this defective, with perfect, the present invention proposes a solution to having replenished of prior art standard, its thought is:
In order to make those skilled in the art better understand this scheme, be described in detail below in conjunction with drawings and Examples.
Fig. 4 shows the flow chart of embodiment of the distribution method of a kind of mobile-node network address identifiers of the present invention.
Specifically may further comprise the steps:
Step S100, MME send indication information to Serving GW, adopt the agreement of appointment with indication Serving GW.
MME has determined also which kind of agreement the S5/S8 interface uses when selecting suitable PDN GW and Serving GW, at this moment, it can inform in the mode of indication information which kind of agreement Serving GW should adopt by sending.
Step S200, when PMI P agreement is adopted in the indication of this indication information, Serving GW construct MN-NAI, to PDN GW transmission Proxy Binding Update message, sets up the PMIP tunnel.
Serving GW receives the Create default bearer request message that is sended over by MME, and therefrom obtains the indication information that adopts the agreement of appointment with indication Serving GW, determines the agreement that the S5/S8 interface adopts.
If when determining that the agreement of S5/S8 interface employing is PMIP agreement (as PMI PV6), structure MN-NAI as a parameter, is arranged on it in Proxy Binding Update message.This Proxy Binding Update message is sent to PDN GW.And behind the Proxy Binding Ack that receives PDN GW transmission, determine the foundation in PMI P tunnel.
Wherein, the mode of structure M N-NAI can be carried out according to the definition in 23.003 agreements, and the user name part among this MN-NAI is that construct on the basis with IMSI.
If when determining that the agreement of S5/S8 interface employing is the GTP agreement, then initiate default bearing request to create (Create default bearer request) message, and set up GTP tunnel between the PDN GW by Serving GW.In this Create default bearer request message, be provided with the IMSI that is used to distinguish the user.
Need to prove that among the above-mentioned steps S100, described indication information can be arranged in default bearing request to create (the Create default bearer request) message.Because MME had just selected suitable PDN GW and ServingGW before sending default bearing request to create message to Serving GW, MME has determined also which kind of agreement the S5/S8 interface uses simultaneously.
Thus, MME can be provided with a parameter in default bearing request to create message, as indication information, adopts the agreement of appointment with indication Serving GW.
In addition, need to prove that when the agreement of determining the employing of S5/S8 interface was PMI P agreement, the MN-NAI of structure can be arranged in the EPS bearer context (EPS bearer context) of Proxy Binding Update message as a parameter.
The embodiment of the invention discloses in the process that U E adheres to, when existing S5/S8 interface adopts the PMIP agreement, finish distribution the MN-NAI of sign UE by Serving GW.And, provide by MME and sent indication information to Serving GW, adopt the mode of which kind of agreement with indication Serving GW.Existing communication process and communication plan are carried out strong replenishing, carried out perfect the function of system.
Fig. 5 shows the structural representation of the device that can be used for realizing above-mentioned certain methods embodiment.
This embodiment comprises information receiving unit 101, agreement determining unit 102 and first processing unit 103.
Wherein,
Described information receiving unit 101 receives the agreement indication information that MME sends.This agreement indication information can be to send with form independently, also can be carried in default bearing request to create (the Create default bearer request) message.
Described agreement determining unit 102 is obtained described agreement indication information from described information receiving unit 101, determines the protocol type that adopts according to described agreement indication information.
Described first processing unit 103 obtains definite result of described agreement determining unit 102, when this determines that the result indicates protocol type to be the PMIP agreement, make up M N-NAI, it is arranged in the ProxyBinding Update message, send to grouped data network gateway PDN GW, to set up the PMIP tunnel.The mode of its structure MN-NAI can be carried out according to the definition in 23.003 agreements, and the user name part among this MN-NAI is that construct on the basis with IMSI.
Fig. 6 shows the structural representation of the device that can be used for realizing above-mentioned other methods embodiment.
On the basis of device embodiment shown in Figure 5, further comprised second processing unit 104, be used to obtain definite result of described agreement determining unit 102, when this determines that the result indicates the protocol type of employing to be the GTP agreement, send default bearing request to create (Create default bearer request) message, to set up GTP tunnel with PDN GW.
Need to prove, after described first processing unit 103 has been constructed MN-NAI, it can be arranged in the EPS bearer context (EPS bearer context).When needs send, this EPS bearer context is carried in the Proxy Binding Update message sends.
Serving GW equipment with distributor of above-mentioned MN-NAI belongs to protection category of the present invention equally, and the difference of this Serving GW and existing Serving GW is that it has the distributor of above-mentioned MN-NAI.
In addition, the communication system with this Serving GW also belongs to protection category of the present invention, and the structure of this system can be as shown in Figure 7.
This communication system comprises: gateway Serving GW10, mobile management entity MME 20 and grouped data network gateway PDN GW.
Described MME20 comprises: information transmitting unit 21 is used to send the agreement indication information, with the protocol type of indication Serving GW employing.
Described Serving GW10 comprises: mobile-node network address identifiers MN-NAI distributor 100.This device 100 receives described agreement indication information, determine the protocol type of employing according to described agreement indication information, and when described protocol type is the PMIP agreement, make up MN-NAI, it is arranged in Proxy Binding Update (Chinese) message, send to grouped data network gateway PDN GW, to set up the PMIP tunnel.Its concrete formation and the course of work were described in detail at preamble, did not repeat them here.
It will be understood by those skilled in the art that and to use many different technologies and in the technology any one to come expression information, message and signal.For example, the message of mentioning in the above-mentioned explanation, information can be expressed as voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or above combination in any.
The professional can also further should be able to recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. the distribution method of a mobile-node network address identifiers MN-NAI is characterized in that, comprising:
Mobile management entity MME sends to gateway Serving GW and creates default bearing request Create default bearer request message, is obtained the agreement indication information that adopts the protocol type of appointment with indication Serving GW from Create default bearer request message by Serving GW;
When the protocol type of described appointment is proxy mobile IP protocol PMIP, Serving GW constructs MN-NAI, it is arranged in the packet switching system EPS bearer context of the evolution in the agent binding update Proxy Binding Update message, send to grouped data network gateway PDN GW, to set up the PMIP tunnel.
2. the method for claim 1 is characterized in that, also comprises:
When the protocol type of described appointment was GPRS Tunnel Protocol GTP, Serving GW sent default bearing request to create message, sets up GTP tunnel with PDN GW.
3. method as claimed in claim 1 or 2 is characterized in that, described agreement indication information is carried in the default bearing request to create message.
4. the distributor of a mobile-node network address identifiers MN-NAI is characterized in that, comprising:
Information receiving unit is used to receive the Create default bearer request message that mobile management entity MME sends;
The agreement determining unit is used for obtaining the agreement indication information by Serving GW from Create default bearer request message, determines to adopt the type of agreement according to described agreement indication information;
First processing unit, when being used for described agreement and determining that type determine to adopt proxy mobile IP protocol PMIP agreement, make up MN-NAI, it is arranged in the packet switching system EPS bearer context of the evolution in the agent binding update Proxy Binding Update message, send to grouped data network gateway PDN GW, to set up the PMIP tunnel.
5. distributor as claimed in claim 4 is characterized in that, also comprises:
Second processing unit is used for sending default bearing request to create message when described agreement determining unit is determined to adopt GPRS Tunnel Protocol GTP, sets up GTP tunnel with PDN GW.
6. as claim 4 or 5 described distributors, it is characterized in that described agreement indication information is carried in the default bearing request to create message.
7. a gateway Serving GW equipment is characterized in that having the distributor of any described mobile-node network address identifiers MN-NAI of claim 5-8.
8. a communication network comprises mobile management entity MME, gateway Serving GW and grouped data network gateway PDN GW, it is characterized in that:
Described MME comprises:
Information transmitting unit is used to send Create default bearer request message;
Described Serving GW comprises:
The distributor of mobile-node network address identifiers MN-N AI, be used for obtaining the agreement indication information from Create default bearer request message, determine the protocol type of employing according to described agreement indication information, and when described protocol type is proxy mobile IP protocol PMIP, make up MN-NAI, it is arranged in the agent binding update Proxy Binding Update message, sends to grouped data network gateway PDN GW, to set up the PMIP tunnel.
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| WO2011054145A1 (en) * | 2009-11-05 | 2011-05-12 | 华为技术有限公司 | Method, system and equipment for notifying internet protocol address |
| CN102333386B (en) * | 2011-10-20 | 2014-06-25 | 大唐移动通信设备有限公司 | Terminal attachment method and equipment |
| EP3288335B1 (en) * | 2015-08-31 | 2024-03-13 | Huawei Technologies Co., Ltd. | Data packet processing method and equipment |
| EP3649827B1 (en) * | 2017-07-07 | 2022-01-12 | Nokia Solutions and Networks Oy | Multiple air interface aggregation supporting multivendor 4g/5g networks |
| CN110035422B (en) * | 2018-01-12 | 2021-01-22 | 大唐移动通信设备有限公司 | Uplink data processing method based on temporary processing tunnel table, MME and SGW |
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