CN101686191A - Method for accessing packet data network service, system, gateway and terminal - Google Patents
Method for accessing packet data network service, system, gateway and terminal Download PDFInfo
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- CN101686191A CN101686191A CN200810222969A CN200810222969A CN101686191A CN 101686191 A CN101686191 A CN 101686191A CN 200810222969 A CN200810222969 A CN 200810222969A CN 200810222969 A CN200810222969 A CN 200810222969A CN 101686191 A CN101686191 A CN 101686191A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention relates to a method for accessing packet data network (PDN) service, a system, a gateway and a terminal, the method comprises the following steps: receiving request information for accessing PND service, wherein the request information carries APN information of destination PDN service desired to be accessed; determining a PDN gateway serving the destination PDN service according toaccess point name information of the destination PDN service; and building connection for accessing the destination PDN service among PND gateways. The embodiment of the invention carries APN information of the destination PDN service by request information for activating or building service flow or request information for building DHCP session to cause the network side to select the PDN gateway serving the destination PDN service desired to be accessed according to the APN information, thereby building a connection between UE and the PDN gateway serving the destination PDN service desired tobe accessed so as to facilitate the UE to access the PDN service carried by the PDN gateway.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to professional method and system, gateway and the terminal of a kind of visit Packet Data Network (Packet DataNetwork is called for short PDN).
Background technology
Present normal structure is being discussed worldwide interoperability for microwave and is being inserted (WorldwideInteroperability for Microwave Access, be called for short WiMAX) with the intercommunication framework of 3GPP, be illustrated in figure 1 as a kind of popular WiMAX and the intercommunication framework of 3GPP in the prior art, in this framework, the shared equipment of the core network of WiMAX and 3GPP, comprise (the Packet Data Network of Packet Data Network, be called for short PDN) gateway, authentication and authorization charging (Authentication Authorization Accounting, be called for short AAA) server, local subscribed services device (Home Subscriber Server, be called for short HSS), with "Policy and Charging Rules Function (Policy and Charging Rules Function, be called for short PCRF) etc.
In the framework shown in Figure 1, the 3GPP aaa server is used to the user that Certificate Authority is provided.HSS is used to the user that signatory configuration is provided.
Accessing business network gate (Access Service Network Gateway is called for short ASN GW) provides the network function of the complete wireless access of a cover for the user who is linked into WiMAX.ASN GW can be connected to one or more connection service networks (Connection Service Network is called for short CSN) (connect service network and be equal to 3GPP home public land mobile network network (HPLMN) here).
APN (Access Point Name is called for short) APN generally represents with domain name, represents corresponding business in network.For gateway, will find correct PDN Gateway address according to APN; For PDN Gateway, the effect of APN is according to APN data route (reception/transmission) to be arrived corresponding PDN network for PDN Gateway.
In the 3GPP system, the feature that to support a user terminal (User Equipment, be called for short UE) to connect a plurality of PDN networks be a necessity is illustrated in figure 2 as in the prior art 3GPP system schematic diagram that a UE is connected to a plurality of PDN networks.Behind the UE attach to network, network is set up the default bearer network for it, usefulness be default APN, can visit default business, as the Internet (Internet) business; This default APN is that terminal and network as offered are good, in case terminal is attached to network, when setting up professional the connection, will set up being connected of terminal and this default APN corresponding service.If UE need visit new business, call out as IP multimedia system (IP Multimedia Subsystem is called for short IMS), then need to use new APN (as IMS-APN), set up new connection.
Not supporting in the WiMAX standard at present that many PDN are professional connects, and also promptly according to the regulation of WiMAX standard, UE can not send APN information to network, can only visit default APN correspondence that UE consults with network side the PDN business.Like this, user terminal can't be visited the PDN business of non-default APN correspondence when being connected to the 3GPP network by the WiMAX network.
Summary of the invention
Problem at the prior art existence, the invention provides a kind of method and system, gateway and UE of the PDN of visit business, for the UE that is linked into the WiMAX network, can make UE in the default APN corresponding service of visit, can visit non-default APN corresponding service.
The embodiment of the invention provides a kind of method of visiting grouping data service, comprising:
Reception is used to visit the request message of grouping data service, carries the APN information of the grouping data service of desire visit in the described request message; Described request message comprises the request message that is used for activating service stream, the request message that is used to create the request message of Business Stream or is used to set up the DHCP session;
Be defined as the packet data network gateway of described grouping data service service according to the APN information of described grouping data service;
Set up with described packet data network gateway between be used to visit being connected of described grouping data service.
The embodiment of the invention also provides a kind of user terminal, comprising:
The request message transmitting element, be used to send the request message of visit grouping data service, carry the APN information of the grouping data service of desire visit in the described request message, described request message comprises the request message that is used for activating service stream, the request message that is used to create the request message of Business Stream or is used to set up the DHCP session;
Data transmission unit, be connected with the described request message sending unit, be used for being defined as according to the APN information of the request message of described request message transmission the packet data network gateway of described grouping data service service at network side, and set up with described packet data network gateway between be used to visit after being connected of described grouping data service, send data, carry out visit described grouping data service.
The embodiment of the invention also provides a kind of gateway, comprising:
The request message receiving element is used to receive the request message of visiting grouping data service, carries the APN information of the grouping data service of desire visit in the described request message; Described request message comprises the request message that is used for activating service stream, the request message that is used to create the request message of Business Stream or is used to set up the DHCP session;
The gateway determining unit is connected with described request message sink unit, is used for being defined as according to the APN information of described request message the packet data network gateway of described grouping data service service;
Business is set up the unit, is connected with described gateway determining unit, is used for the described packet data network gateway determined according to described gateway determining unit, set up with described packet data network gateway between be used to visit being connected of described grouping data service.
The embodiment of the invention also provides a kind of system that visits grouping data service, comprises user terminal and gateway;
Described user terminal is used to send the request message of visit grouping data service, carries the APN information of the grouping data service of desire visit in the described request message; Described request message comprises the request message that is used for activating service stream, the request message that is used to create the request message of Business Stream or is used to set up the DHCP session;
Described gateway is used to receive the described request message that described user terminal sends, and is defined as the packet data network gateway of described grouping data service service according to the APN information of the described grouping data service in the described request message; Set up with described packet data network gateway between be used to visit being connected of described grouping data service.
The embodiment of the invention, for the UE that is linked into the WiMAX network, make it send the request message that is used to activate or create the request message of Business Stream or is used to set up the DHCP session to network side, carry the APN information of the PDN business of desire visit, make that network side can be according to the APN Information Selection of the PDN business of this desire visit PDN Gateway for this PDN business service, thereby can set up the connection of the PDN Gateway of the grouping data service service that is used for the UE visit, make UE can visit this PDN Gateway carrying target P DN business, the UE that inserts the WiMAX network like this can also visit the PDN business of non-default APN correspondence in the PDN business of the default APN correspondence of visit.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Figure 1 shows that a kind of popular WiMAX and the intercommunication framework of 3GPP in the prior art;
Figure 2 shows that in the prior art 3GPP system that a UE is connected to the schematic diagram of a plurality of PDN networks;
Figure 3 shows that the present invention visits method embodiment one flow chart of PDN business;
Figure 4 shows that the present invention visits a kind of signaling diagram of the method embodiment one of PDN business;
Figure 5 shows that the present invention visits the another kind of signaling diagram of the method embodiment one of PDN business;
Figure 6 shows that the present invention visits method embodiment two flow charts of PDN business;
Figure 7 shows that the present invention visits the signaling diagram of the method embodiment two of PDN business;
Figure 8 shows that UE example structure schematic diagram of the present invention;
Figure 9 shows that gateway example structure schematic diagram of the present invention.
Embodiment
Be illustrated in figure 3 as method embodiment one flow chart that the present invention visits the PDN business, comprise:
In the step 301, the request message that request message by being used for activating service stream or be used to is created Business Stream carries APN information and can be, the request message that request message by being used for activating service stream or be used to is created Business Stream carries the traffic stream identifier (Service Flow Identification is called for short SFID) that has mapping relations with the APN of target P DN business.
Particularly, gateway comprises the APN information (comprising default APN information and non-default APN information) that UE is signatory from signatory configuration data and policy information that HSS/AAA obtains the user.Gateway distributes corresponding SFID according to the professional corresponding APN information of signatory PDN of UE, and each SFID represents the PDN business information of APN correspondence, and gives UE with the mapping relations download of information of SFID and APN.Mapping relations between APN and the SFID can be represented with the form of form, also can represent with other modes such as functions.When an APN can only activate a connection, the mapping relations table of SFID and APN can be as shown in Table 1.
The mapping relations table example one of SFID that relates in table one, the embodiment of the invention and APN
| APN | Traffic stream identifier |
| ??APN1 | ??SFID1 |
| ??APN2 | ??SFID2 |
| ??... | ??... |
| ??APNn | ??SFIDn |
When an APN can activate a plurality of connection, the mapping relations table of SFID and APN can be as shown in Table 2:
The mapping relations table example two of SFID that relates in table two, the embodiment of the invention and APN
| APN | Initial value | End value |
| ??APN1 | ??SFID1-1 | ??SFID1-x |
| ??APN2 | ??SFID2-1 | ??SFID2-y |
| ??... | ??... | ??... |
| ??APNn | ??SFIDn-1 | ??SFIDn-z |
In Extensible Authentication Protocol (Extensible Authentication Protocol is called for short EAP) process, gateway is downloaded the mapping relations information of APN and SFID and is given UE, and holds consultation with UE.
The EAP process is the part of access authentication of user, and the default APN information that mapping relations information and network side are determined between APN that can gateway be set up by some message in the EAP process and the SFID sends to UE.For example, give UE (particularly by the mapping relations information of carrying APN and SFID in the EAP requests/response messages in the EAP verification process, can expand at the Identity attribute in the EAP requests/response messages, to carry the mapping relations information of APN and SFID); Perhaps, can in EAP notification procedure (this is an independently process), carry the mapping relations information of APN and SFID to UE by the EAP notification message; Perhaps, also can be in the EAP verification process, in the mutual network access Identifier (Network Access Identity is called for short NAI) of UE and network side, carry the mapping relations information of APN and SFID to UE, for example, underscore mark font part [RoutingRealm1! in NAI increases ]
Apn1=xxxx1, SFID1=yyyy1, Apn2=xxxx2, SFID2=yyyy2 ...Username@realm.
Simultaneously, UE can hold consultation with network side.Because the default APN of UE may be inconsistent at network side and UE side, UE is after the APN and the table of the mapping pass between the SFID that receive as shown in Table 2, if disagree with the default APN information that network side is determined, then need to feed back new default APN information and give network side, just need to give network side amended mapping relations table.For example, the default APN that UE determines is APN2, and network side to send to the default APN of UE be APN1, the mapping relations table that feeds back to network side after then UE upgrades is for as shown in Table 3:
SFID after UE upgrades in table three, the embodiment of the invention and the mapping relations table of APN
| The contact title | Initial value | End value |
| ??APN1 | ??SFID2-1 | ??SFID2-x |
| ??APN2 | ??SFID1-1 | ??SFID1-y |
| ??... | ??... | ??... |
| ??APNn | ??SFIDn-1 | ??SFIDn-z |
In addition, will distribute specific SFID for APN based on the wildcard form; For example APN (*) expression wildcard owns, and promptly SFID can be assigned as 0xFFFFFFFA.
In step 302, what gateway can send according to UE exists the SFID of mapping relations with target P DN business, is defined as the PDN Gateway of target P DN business service.
Can also comprise before embodiment one step 301 and set up the professional step of connecting of the UE PDN corresponding with default APN.
Be illustrated in figure 4 as a kind of signaling diagram that the present invention visits the method embodiment one of PDN business, comprise:
Step 401, UE initially insert the WiMAX network, and gateway carries out Certificate Authority to HSS/AAA.
Step 402, after successfully carrying out Certificate Authority, gateway obtains user's signatory configuration data and policy information from HSS/AAA, comprises the APN information (comprising default APN information and non-default APN information) that user terminal is signatory.
Step 403, gateway are set up and the traffic stream identifier mapping relations information of (Service Flow Identification is called for short SFID) according to the signatory APN information of user terminal.
Step 404, in the EAP process, gateway is downloaded APN and is given UE with the mapping relations information of SFID, and holds consultation with UE.
Create the step of initial service flow between step 405, gateway initiation and the UE.In this process, gateway will be according to SFID and the APN mapping relations information after above-mentioned UE and the network side negotiation, and the SFID that selects default APN correspondence is as initial SFID.
Alternatively, gateway can be created every other pre-configured service stream to user terminal, and pre-configured service stream is placed unactivated state.
Step 406, set up initial service flow after, gateway is according to default APN information, search the first PDN Gateway address (being default PDN Gateway address), setting up default APN corresponding service to PDN Gateway connects, for example gateway is as MAG, carry out the PMIP6 registration to first PDN Gateway, set up PMIP and connect.
Step 407, gateway carry out stateless address configuration by route announcement (Route Advertisement is called for short RA) to mobile radio station (Mobile Station is called for short MS), and perhaps according to dhcp process, UE has the state address configuration to network requests.
After step 401-407 finished, UE had set up default APN corresponding service and has connected, and can carry out the visit to the PDN business of default APN correspondence.If UE also needs to visit the PDN business of non-default APN correspondence, then also need to carry out following step.
Step 408, UE initiate to create or activate the dynamic service flow process, according to APN after UE and the network side negotiation and the mapping relations information between the SFID, the SFID of the APN correspondence of UE select target business, as the sign of dynamic service flow, this SFID promptly is equivalent to the APN information of target P DN business.In establishment that UE initiates or activate in the dynamic service flow process, can carry the SFID of the APN correspondence of target P DN business by the request message that is used to activate or create Business Stream.
Step 409, according to policy configurations etc., whether gateway can selectively can visit this business with visit to the HSS/AAA server to UE and verify mandate.This step is an optional step, also can not carry out.
Step 410, gateway be according to the SFID of dynamic service flow, and UE and network side after consulting APN and the mapping relations information between the SFID, find corresponding APN information; APN information searching according to target P DN business is the second PDN Gateway address of target P DN business service then, initiates to set up to second PDN Gateway professional connection of PDN of APN correspondence, as the PMIP registration process.Just set up between gateway and second PDN Gateway like this and be connected.
Like this, UE just can visit the PDN business of non-default APN correspondence, UE is when visit PDN is professional, can earlier packet be sent to gateway, gateway sends to second PDN Gateway with packet then, and second PDN Gateway sends to packet in the PDN network of carrying target P DN business.
Above-mentioned steps 408 is activation of initiatively being initiated by UE or the process of creating dynamic service flow, and this step also can be to be initiated by network side.If network equipment (gateway for example, or policing feature (Policy Function, be called for short PF) wait and pass through gateway) be that UE is when initiatively initiating non-default APN corresponding service, then in step 408, initiatively initiate to set up dynamic service flow by network, according to APN and SFID mapping relations information, select the SFID of non-default APN correspondence.The implementation of follow-up other steps is identical.
Realize that at concrete WiMAX and the intercommunication of 3GPP system interconnect gateway can be an ASN gateway in the WiMAX network in the network, PDN Gateway can be the PDN Gateway in the 3GPP network.
Need to prove, in signaling diagram shown in Figure 4, if UE has been linked into network, so after CAMEL-Subscription-Information changes, HSS/AAA will initiatively send user's CAMEL-Subscription-Information to current gateway, gateway will upgrade the mapping relations information of APN and SFID, initiate re-authentication or the APN after independently the EAP process will change sends to UE with the mapping relations information of SFID, the while can be created this SFID corresponding business alternatively and be flowed (this Business Stream is set to state of activation or unactivated state).That is to say that network side can initiatively be initiated step 402,403 and 404.
Communicating by letter through wireless 2 layers of equipment such as base stations between gateway and the UE, the message between gateway and the UE need be passed through these equipment transfers.
In embodiment one, gateway forms the mapping relations information of APN and SFID, when UE need visit non-default APN corresponding service, can select the SFID of non-default APN correspondence as the dynamic service traffic identifier by network side or UE, gateway just can be according to SFID that selects and the mapping relations information of APN and SFID like this, find corresponding non-default APN, thereby further find into second PDN Gateway of this non-default APN corresponding service service, like this, the UE that is linked into the WiMAX network just can visit non-default APN corresponding service.
In embodiment one step 301, can also carry the APN information of target P DN business by the request message that is used to set up the DHCP session.In this case, if when default APN that UE determines and network side are inconsistent, then UE need consult default APN information with network side.For example, can give UE by carrying default APN information in the EAP requests/response messages in the EAP verification process; Perhaps, can in the EAP notification procedure, carry default APN information and give UE by the EAP notification message; ...! ]
Apn=xxxx1Username@realm, then, gateway will be preserved the default APN information that UE sends.
Be illustrated in figure 5 as the another kind of signaling diagram that the present invention visits the method embodiment one of PDN business, this signaling diagram is primarily aimed at the situation of carrying APN information by the request that is used to set up the DHCP session, specifically comprises:
Step 501, UE initial access network.Carry out Certificate Authority by gateway to HSS/AAA.
Step 502, the signatory configuration data that obtains the user and policy information comprise default APN and non-default APN information that UE is signatory to gateway.
Create the step of initial service flow between step 503, gateway initiation and the UE.
Step 504, set up initial service flow after, gateway is searched the first PDN Gateway address according to default APN information, set up professional connection of PDN of default APN correspondence to first PDN Gateway, for example gateway carries out the PMIP6 registration as MAG to first PDN Gateway, sets up PMIP and connects.First PDN Gateway is the PDN Gateway corresponding with default APN.
Step 505, gateway carry out stateless address configuration by RA to MS, and perhaps according to dhcp process, UE has the state address configuration to network requests.
After step 501-505 finished, UE had set up the professional connection of the PDN corresponding with default APN, can carry out the visit of the PDN business corresponding with default APN.When UE need visit the PDN business of non-default APN correspondence, then can initiate following step process:
Step 506, UE initiate to create or activate the dynamic service flow process.
After dynamic service flow was set up, gateway request UE had state address layoutprocedure (for example by RA notice UE), and UE will have the state address configuration, and step is as follows:
Step 507, UE initiate to be used to set up the request message of DHCP session, carry the APN information of the target P DN business of UE desire visit at this request message that is used for setting up the DHCP session, and described APN information can be domain name.
Obtain the second PDN Gateway address of target P DN business service after step 508, gateway are resolved the APN information of the target P DN business of desire visit, initiate to set up the professional connection of target P DN, as the PMIP6 registration process to second PDN Gateway.Just set up between gateway and second PDN Gateway like this and be connected.
If gateway as DHCP proxy equipment, does not then need with Dynamic Host Configuration Protocol server mutual; If gateway is as the DHCP transferring equipment, step 507 can further include: gateway is transmitted the DHCP request message to Dynamic Host Configuration Protocol server; Dynamic Host Configuration Protocol server is replied the DHCP advertisement information to gateway, has the IP address that is pre-assigned to UE; Gateway sends DHCP request/affirmation (Request/ACK) to UE, finishes address configuration.Concrete step sees for details among Fig. 5 shown in the step 509-512.
Between above-mentioned steps 502 and 503, if the default APN information inconsistency that default APN information that network side is determined and UE determine, then UE need consult default APN information with network side in addition, the final default APN information of determining unanimity.For example, can give UE by carrying default APN information in the EAP requests/response messages in the EAP verification process; Perhaps, can in the EAP notification procedure, carry default APN information and give UE by the EAP notification message; ...! ]
Apn=xxxx1Username@realm.Then, gateway will be preserved default APN information.
Like this, UE just can visit the PDN business of non-default APN correspondence, UE is when access destination PDN is professional, can earlier packet be sent to gateway, gateway sends to second PDN Gateway with packet then, and second PDN Gateway sends to carrying with packet to be desired in the network of target P DN business.
Carry the APN information of the target P DN business of desire visit by the request message that is used for setting up the DHCP session that sends to gateway at UE, make that gateway can be according to this APN information searching to second PDN Gateway, thereby set up being connected of target P DN business of UE and desire visit, make the UE that inserts the WiMAX network can visit non-default APN corresponding service.
Be illustrated in figure 6 as method embodiment two flow charts that the present invention visits the PDN business, comprise:
Step 601, UE set up the connection that is used to visit the corresponding PDN business of default APN with first PDN Gateway;
Step 602, UE send the professional message that connects of target P DN that non-default APN correspondence is set up in request to first PDN Gateway, and this message comprises the professional corresponding non-default APN of target P DN;
If step 603 first PDN Gateway is not the gateway for the target P DN business service of non-default APN correspondence, then first PDN Gateway needs to be defined as according to this non-default APN second PDN Gateway of target P DN business service, and the second PDN Gateway information is sent to UE.UE is after receiving the second PDN Gateway information that first PDN Gateway is determined according to non-default APN, send the professional message that connects of target P DN that non-default APN correspondence is set up in request to second PDN Gateway, this request is set up in the professional message that connects of target P DN of non-default APN correspondence and is carried and the professional corresponding non-default APN of target P DN, and foundation is connected with the business of second PDN Gateway; If first PDN Gateway is the gateway for the target P DN business service of non-default APN correspondence, what then UE received first PDN Gateway sets up the response message of the professional message that connects of target P DN of the desire visit of non-default APN correspondence at request, and UE is by the first PDN Gateway access destination PDN business.
The embodiment of the invention two can also comprise sets up the professional step of connecting of the UE PDN corresponding with default APN, if when the definite default APN of the default APN that UE determines and network side is inconsistent, can also hold consultation with network.
Be illustrated in figure 7 as the signaling diagram that the present invention visits the method embodiment two of PDN business, comprise:
Step 701, UE initial access network.Carry out Certificate Authority by gateway to HSS/AAA.
Step 702, after successfully carrying out Certificate Authority, gateway obtains user's signatory configuration data and policy information from HSS/AAA, comprises the APN information (comprising default APN information and non-default APN information) that user terminal is signatory.
Create the step of initial service flow between step 703, gateway initiation and the UE.After setting up initial service flow, gateway is searched the first PDN Gateway address according to default APN information, carries out RA with Care-of Address (Care of Address to UE, be called for short CoA), and UE is given in the configuration of the first PDN Gateway address (carrying by hometown-agent-address).
Step 704, UE are according to the first PDN Gateway address, initiate default APN corresponding service connection and set up process, this connection also connects by gateway, but gateway is a transparent transmission, packets of information is set up in the business connection of promptly only transmitting between a UE and the PDN, and does not do other processing; Can adopt mobile IP v 6 (Mobile IPv6 is called for short MIPv6) agreement to connect.
After step 701-704 finished in the above, UE had set up default APN corresponding service and has connected, and can carry out the visit of the PDN business of default APN correspondence.When UE need visit the PDN business of non-default APN correspondence, then initiate following step process:
Step 705, UE initiate to create or activate the dynamic service flow process.After dynamic service flow was set up, gateway disposed the CoA and first PDN Gateway to UE by RA.
Step 706, UE are initiated the professional connection request message of target P DN that non-default APN correspondence is set up in request to first PDN Gateway, and the APN information of the target P DN business of its desire visit is carried in for example Binding Update request, initiates new professional connection procedure.
Step 707, first PDN Gateway are checked the APN information of target P DN business, check whether target P DN business is served by it, business is served by self if first PDN Gateway is determined target P DN, then directly reply and succeed in registration to UE, for example, return the information of the binding registration process that is a plurality of Care-of Address (Care-of-Address is called for short CoA) and same home address (Home of addres s is called for short HoA) at this moment to UE.Business should not served by self if first PDN Gateway is thought target P DN, then to the authentication of HSS/AAA request carrying out service authorization, obtains one or more second PDN Gateway addresses, perhaps can obtain to DNS such as name servers.
Step 708, first PDN Gateway are replied the response message of setting up the professional message that connects of target P DN of non-default APN correspondence at request to UE, and for example the Binding Update acknowledge message has and is redirected indication and at least one second PDN Gateway address.
Step 709, UE send the professional message that connects of target P DN that non-default APN correspondence is set up in request to second PDN Gateway, for example, the Binding Update request, it carries the APN information of target P DN business.
Step 710, second PDN Gateway are accepted the Binding Update request, the binding relationship between itself address of HSS registration identifies with UE.
Step 711, second PDN Gateway are replied the response message of setting up the professional message that connects of target P DN of non-default APN correspondence at request, for example binding acknowledgement message to UE.So just set up being connected between UE and the 2nd PDN network.UE can send packet to the 2nd PDN network, and the 2nd PDN network sends to packet on the PDN network of carrying target P DN business then.
Between above-mentioned steps 702 and 703, if the default APN information inconsistency that default APN information that network side is determined and UE determine, then UE need consult default APN information with network side in addition, the final default APN information of determining unanimity.
In the middle of an optional embodiment, step 707 can be: default PDN Gateway is checked the APN information of target P DN business, check whether this target P DN business is served by self, if default PDN Gateway determines that target P DN business should be by self row service, then directly reply and succeed in registration to UE, for example, replying to UE is the information of many CoA registration process at this moment.Business should not served by self if default PDN Gateway is determined target P DN, and default PDN Gateway is set up the APN Information Selection second PDN Gateway address in the response message of the professional message that connects of target P DN of non-default APN correspondence according to the request of UE.Step 508 can be, the response message that default PDN Gateway will ask to set up the professional message that connects of target P DN of non-default APN correspondence is transmitted to second PDN Gateway.Second PDN Gateway is accepted business to connect and is set up, by default PDN Gateway or directly to UE answer binding acknowledgement.
By send the APN information of target P DN business to default PDN Gateway, in this target P DN business is not under the situation of being served by default PDN Gateway, default PDN Gateway arrives at least one second PDN Gateway according to the APN information searching of target P DN business, then the professional APN information of target P DN is sent to by UE or be transmitted to second PDN Gateway by default PDN Gateway, thereby set up being connected between UE and second PDN Gateway, can realize connecing the non-default APN corresponding service of user terminal access of 2WiMAX network.
Be illustrated in figure 8 as UE example structure schematic diagram of the present invention, this UE can comprise: interconnective request message transmitting element 11 and data transmission unit 12; Request message transmitting element 11 is used for sending visit PDN service request message, carry the APN information of target P DN business in this request message, this request message comprises the request message that is used for activating service stream, the request message that is used to create the request message of Business Stream or is used to set up the DHCP session; APN information in the request message that network side sends according to request message is defined as the PDN Gateway of target P DN business service, and set up with this PDN net gateway between be used to visit after being connected of this targeted packets data network business, data transmission unit 12 sends data, carries out the visit to targeted packets data network business.
The embodiment two of this UE can also comprise mapping relations receiving element 13, be connected with request message transmitting element 11, be used to receive the APN of network side transmission and the mapping relations of SFID, if the APN information of carrying in the request message that request message transmitting element 11 sends is the SFID of the APN correspondence of target P DN business, then request message transmitting element 11 is when sending a request message, and determines SFID in the request message according to the mapping relations in the mapping relations receiving element 13.
Be illustrated in figure 9 as gateway example structure schematic diagram of the present invention, comprise that request message receiving element 21, gateway determining unit 22 and business set up unit 23; Gateway determining unit 22 is set up unit 23 with request message receiving element 21 and business respectively and is connected.When request message receiving element 21 receives when being used to visit the PDN service request message, gateway determining unit 22 is defined as the PDN Gateway of target P DN business service according to the APN information in this request message; Professionally then set up the PDN Gateway that unit 23 is determined according to gateway determining unit 22, set up with this PDN Gateway between be used for being connected of access destination PDN business.
Gateway embodiment as shown in Figure 9 can also comprise that mapping relations set up the unit, this unit is used for receiving the signatory APN information of user terminal from HSS or aaa server, set up mapping relations and the preservation of APN and SFID, send to user terminal setting up good mapping relations.
If the request message that gateway receives is the request message that is used to set up the DHCP session, then gateway embodiment as shown in Figure 9 can also comprise resolution unit, this resolution unit is connected with gateway determining unit 22 with request message receiving element 21 respectively, be used for parsing APN information from the request message that request message receiving element 21 receives, and the APN information that parses sent to gateway determining unit 22, gateway determining unit 22 just can be defined as the gateway of target P DN business service according to the APN information that parses like this.
The embodiment of the invention also provides a kind of system that visits grouping data service, this system comprise as shown in Figure 8 user terminal and gateway as shown in Figure 9; User terminal is used for sending visit PDN service request message, carries the APN information of the target P DN business of desire visit in this request message; This request message comprises the request message that is used for activating service stream, the request message that is used to create the request message of Business Stream or is used to set up the DHCP session; Gateway is used to receive the request message that user terminal sends, and is defined as the PDN Gateway of target P DN business service according to the APN information of the target P DN business in the request message that receives; Set up with this PDN Gateway between business be connected.
If setting up the professional step of connecting of PDN is initiated by UE, then UE can send first PDN Gateway that visit PDN service request message sends to default APN correspondence with being used to, and the system of this visit grouping data service also comprises first PDN Gateway and second PDN Gateway so.First PDN Gateway is used to receive that user terminal sends in the request message that sends the visit grouping data service, is defined as the PDN Gateway of target P DN business service according to the APN information of the target P DN business in this request message; If for the PDN Gateway of target P DN business service is this first PDN Gateway itself, then be used for being connected of access destination PDN business with user terminal foundation; If for the packet data network gateway of target P DN business service is not this first PDN Gateway itself, then be defined as second PDN Gateway of target P DN business service according to APN information, and the information of second PDN Gateway sent to user terminal, make and set up the connection that is used for access destination PDN business between the user terminal and second PDN Gateway.Particularly, user terminal sends the request message that is used to send the visit grouping data service according to the information of second PDN Gateway that receives to second PDN Gateway, and foundation is connected with second PDN Gateway.
The embodiment of the invention, for the UE that is linked into the WiMAX network, make it send the request message that is used to activate or create the request message of Business Stream or is used to set up the DHCP session to network side, carry the APN information of the target P DN business of desire visit, make that network side can be the PDN Gateway of this target P DN business service according to the APN Information Selection of this target P DN business, thereby can set up the connection of the PDN Gateway of the grouping data service service that is used for the UE visit, make UE can visit the target P DN business of this PDN Gateway carrying, the UE that inserts the WiMAX network like this can also visit the PDN business of non-default APN correspondence in the PDN business of the default APN correspondence of visit.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (12)
1, a kind of method of visiting grouping data service is characterized in that, comprising:
Reception is used to visit the request message of grouping data service, carries the APN information of the grouping data service of desire visit in the described request message; Described request message comprises the request message that is used for activating service stream, the request message that is used to create the request message of Business Stream or is used to set up the DHCP session;
Be defined as the packet data network gateway of described grouping data service service according to the APN information of described grouping data service;
Set up with described packet data network gateway between be used to visit being connected of described grouping data service.
2, the method for visit grouping data service according to claim 1 is characterized in that, described APN information is the APN corresponding service traffic identifier with described grouping data service;
The packet data network gateway that is defined as described grouping data service service according to the APN information of described grouping data service comprises: according to described traffic stream identifier and the traffic stream identifier that obtains in advance and the mapping relations of APN, after determining the APN of described traffic stream identifier correspondence, determine corresponding packet data network gateway according to described APN.
3, the method for visit grouping data service according to claim 2, it is characterized in that, the mode that the mapping relations of described traffic stream identifier and APN obtain in advance comprises: receive the signatory APN information of user terminal from local subscribed services device or authentication authorized charging server, set up the mapping relations and the preservation of APN and traffic stream identifier;
Described mapping relations are sent to user terminal.
4, the method for visit grouping data service according to claim 1 is characterized in that, described APN information is the APN with the grouping data service of described desire visit;
The packet data network gateway that is defined as described grouping data service service according to the APN information of described grouping data service comprises: APN is resolved, obtain the packet data network gateway of described APN correspondence.
5, the method for visit grouping data service according to claim 1, it is characterized in that, being used to visit between described foundation and the described packet data network gateway comprises being connected of described grouping data service: connect to realize the visit of grouping data service by gateway and described packet data network gateway, after perhaps the address information of described definite packet data network gateway being issued user terminal, directly connect to realize the visit of grouping data service by user terminal and described packet data network gateway.
6, a kind of user terminal is characterized in that, comprising:
The request message transmitting element, be used to send the request message of visit grouping data service, carry the APN information of the grouping data service of desire visit in the described request message, described request message comprises the request message that is used for activating service stream, the request message that is used to create the request message of Business Stream or is used to set up the DHCP session;
Data transmission unit, be connected with the described request message sending unit, be used for being defined as according to the APN information of the request message of described request message transmission the packet data network gateway of described grouping data service service at network side, and set up with described packet data network gateway between be used to visit after being connected of described grouping data service, send data, carry out visit described grouping data service.
7, user terminal according to claim 6 is characterized in that, also comprises:
The mapping relations receiving element, be connected with the described request message sending unit, be used to receive the APN of network side transmission and the mapping relations of traffic stream identifier, if the APN information of carrying in the described request message that the described request message sending unit sends is the APN corresponding service traffic identifier of described grouping data service, then the described request message sending unit is when sending described request message, determines traffic stream identifier in the described request message according to the mapping relations in the described mapping relations receiving element.
8, a kind of gateway is characterized in that, comprising:
The request message receiving element is used to receive the request message of visiting grouping data service, carries the APN information of the grouping data service of desire visit in the described request message; Described request message comprises the request message that is used for activating service stream, the request message that is used to create the request message of Business Stream or is used to set up the DHCP session;
The gateway determining unit is connected with described request message sink unit, is used for being defined as according to the APN information of described request message the packet data network gateway of described grouping data service service;
Business is set up the unit, is connected with described gateway determining unit, is used for the described packet data network gateway determined according to described gateway determining unit, set up with described packet data network gateway between be used to visit being connected of described grouping data service.
9, gateway according to claim 8 is characterized in that, also comprises:
Mapping relations are set up the unit, be used for receiving the signatory APN information of user terminal from local subscribed services device or authentication authorized charging server, set up the mapping relations and the preservation of APN and traffic stream identifier, described mapping relations are sent to user terminal.
10, gateway according to claim 8 is characterized in that, also comprises:
Resolution unit, be connected with the gateway determining unit with described request message sink unit respectively, what be used for receiving when described request message sink unit is when being used to set up the request message of DHCP session, parse the described APN information that is used for setting up the request message of DHCP session, and the APN information that parses is sent to described gateway determining unit.
11, a kind of system that visits grouping data service is characterized in that, comprises user terminal and gateway;
Described user terminal is used to send the request message of visit grouping data service, carries the APN information of the grouping data service of desire visit in the described request message; Described request message comprises the request message that is used for activating service stream, the request message that is used to create the request message of Business Stream or is used to set up the DHCP session;
Described gateway is used to receive the described request message that described user terminal sends, and is defined as the packet data network gateway of described grouping data service service according to the APN information of the described grouping data service in the described request message; Set up with described packet data network gateway between be used to visit being connected of described grouping data service.
12, the system of visit grouping data service according to claim 11 is characterized in that, also comprises:
First packet data network gateway is used to receive the described request message that described user terminal sends, and is defined as the packet data network gateway of described grouping data service service according to the APN information of the described grouping data service in the described request message; If for the packet data network gateway of described grouping data service service is described first packet data network gateway, then be used to visit being connected of described grouping data service with described user terminal foundation; If for the packet data network gateway of described grouping data service service is not described first packet data network gateway, then be defined as second packet data network gateway of described grouping data service service according to described APN information, and the information of described second packet data network gateway sent to described user terminal, make and set up the connection that is used to visit described grouping data service between described user terminal and described second packet data network gateway.
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| CN200810222969A CN101686191A (en) | 2008-09-24 | 2008-09-24 | Method for accessing packet data network service, system, gateway and terminal |
| PCT/CN2009/073890 WO2010037309A1 (en) | 2008-09-24 | 2009-09-11 | Method and system for accessing packet data network service, gateway and terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810222969A CN101686191A (en) | 2008-09-24 | 2008-09-24 | Method for accessing packet data network service, system, gateway and terminal |
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| CN101686191A true CN101686191A (en) | 2010-03-31 |
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| WO (1) | WO2010037309A1 (en) |
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