CN100484290C - Method for realizing PDP address distribution in service cut-in - Google Patents
Method for realizing PDP address distribution in service cut-in Download PDFInfo
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- CN100484290C CN100484290C CNB2006100334370A CN200610033437A CN100484290C CN 100484290 C CN100484290 C CN 100484290C CN B2006100334370 A CNB2006100334370 A CN B2006100334370A CN 200610033437 A CN200610033437 A CN 200610033437A CN 100484290 C CN100484290 C CN 100484290C
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Abstract
The present invention provides realizes PDP address assignment method in service accessing. Said method includes A, user equipment carrying supported address ability information to core network in attachment process; B, core network according to said IP address ability information and address information in user subscription data distributing relevant IP type PDP address to user equipment. The present invention can raise UE activating success ratio.
Description
Technical field
The invention belongs to moving communicating field, relate in particular in the user apparatus service access procedure, the implementation method of adhering to method and a kind of user of user equipment allocation pdp address.
Background technology
Existing GPRS (General Package Radio Service, GPRS)/UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system) network configuration as shown in Figure 1, adopted and the similar structure of second generation mobile communication system, comprise UMTS (UniversalMobile Telecommunications System, universal mobile telecommunications system) land radio access web (UMTSTerritorial Radio Access Network, UTRAN), GSM EDGE Radio Access Network (GSM/EDGE Radio Access Network, GERAN), core net (Core Network, CN) and user terminal (User Equipment, UE).Wherein, GERAN/UTRAN is used to realize all and wireless function associated, and CN handles that all voice calls are connected with data in the GPRS/UMTS system, and is used to realize and the exchange of external network and the function of route.CN from be divided in logic circuit commutative field (Circuit Switched Domain, CS) and packet-switched domain (Packet Switched Domain PS), supports speech and data service respectively.
The CS territory comprises Mobile Switching Center Server (MSC-Server), media gateway (MGW) and Gateway Mobile Switching Center server nodes such as (GMSC-Server).Wherein, MSC-Server is used to transmit the chain of command data in CS territory, realize mobile management, call out functions such as control and authentication ciphering, GMSC-Server is used to realize the calling control of GMSC and the chain of command function that mobility is controlled, and MGW is used to realize the transmission of user face data;
The PS territory comprises service universal grouping wireless business supporting node (SGSN) and ggsn nodes such as (GGSN).Wherein, GGSN mainly is responsible for and external network carries out interface, and simultaneously, GGSN also is responsible for realizing the transmission of user face data.Position and the MSC Server in CS territory of SGSN in the PS territory is similar, and its Core Feature is to realize functions such as routing forwarding, mobile management, session management and user profile storage.
(Home Location Register HLR) is used for storing user subscription information to attaching position register, and this equipment is all used in CS and PS territory.
3GPP (Third Generation Partnership Project, third generation partner program) in order to strengthen the competitiveness of future network, studying at present a kind of 3GPP network system of evolution, for core network, the main following points of the principle of network evolution:
1. only there is the PS territory in next generation network, does not have the CS territory.The business in existing C S territory will insert IMS (IP Multimedia Core Network Subsystem, IP multimedia core network subsystem) by packet domain and realize;
2. network using all-IP (Internet Protocol, the Internet protocol) network architecture;
3. support the access of non-3GPP network (Non 3GPP IP Access), support roaming and the switching of user between evolvement network and non-3GPP network;
4. the simplification network architecture, the level of minimizing network node, the time delay of minimizing transfer of data;
5. simplify the customer service connection and set up signaling process, reduce the professional time delay that connects.
A kind of evolution block core net network framework as shown in Figure 2, comprise Mobility Management Entity (MobilityManagement Entity, MME), user entity (User Plane Entity, UPE) and three logical functional entities of the user's face anchor point between the different access systems (Inter Access System Anchor, Inter AS Anchor).Wherein, MME is responsible for the mobile management of chain of command, comprises the management of user's context and mobile status, and distributing user temporary identity sign etc. are corresponding to the control plane part of current GPRS/UMTS internal system SGSN; UPE is responsible for initiating paging for downlink data under the idle condition, and IP bearing parameter and the interior routing iinformation of network etc. are preserved in management, corresponding to the datum plane part of current GPRS/UMTS internal system SGSN and GGSN; Inter AS Anchor then serves as the user's face anchor point between different access systems.(Policy and Charging Rule Function PCRF) is used for chargeing and policy control for charging and strategic control module.(Home Subscriber Server HSS) is used for storing user subscription information to home network server.
Fig. 3 shows user activated realization flow among the 3GPP TS 23.060:
1.UE transmission activation packet data protocol (Packet Data Protocol, PDP) context request message (Activate PDP Context Request) is to SGSN;
2.SGSN the legitimacy of the activation PDP Context request message that checking UE sends, this checking is determined according to the PDP type (optional) that provides in UE and the PDP Context subscription data, pdp address (optional) and APN (optional), if request message is legal, then sends and create PDP Context request message (Create PDP Context Request) to GGSN;
Create PDP Context response message (Create PDP Context Response) to SGSN 3.GGSN return;
Upgrade PDP Context request message (Update PDP Context Request) to GGSN 4.SGSN send;
Upgrade PDP Context response message (Update PDP Context Response) to SGSN 5.GGSN return;
Accept message (Activate PDP Context Accept) to UE 6.SGSN send the activation PDP Context.
According to 3GPP TS 24.008 agreements regulation, in the activation PDP Context request message that UE sends, the PDP type can be set to IPv4, IPv6 or not be provided with.For legacy network, owing to only support IPv4, so do not need to do special processing.After introducing IPv6, then UE has two types of the UE that only supports IPv4 and the UE that support IPv6 and IPv4 dual stack.
Suppose that SGSN, GGSN equipment all supports IPv4, IPv6, then for the UE that only supports IPv4, if UE does not carry the PDP type when activating, but the PDP type in the subscription data is IPv6, then in activation process, do not know the IP address ability of UE, so the activation process success distributes the pdp address of an IPv6 type to give UE owing to SGSN, GGSN, but UE does not support this IP address class type, accepts message reprocessing meeting existence unusually so UE receives to activate.
For the UE that supports IPv4 and IPv6 dual stack, if the PDP type of UE appointment is IPv4 when activating, but the PDP type in the subscription data is IPv6, perhaps the PDP type of UE appointment is IPv6, but the PDP type in the subscription data is IPv4, according to the prior protocols flow processing, all be to activate failure, the cause value of failure is " unknown PDP address or PDP type ".When actual motion, UE for dual stack, the user often may not know own employed service IP address type, so may have mistake when being provided with, the PDP type that causes activating request message is provided with mistake, activates failure thereby cause, and greatly reduces the success rate of activation, and need the user to know own employed service IP address type, to user's requirement than higher.
Fig. 4 shows the realization flow that the user adheres among the standard TR23.882:
1.UE send network discovery and connecting system selection message (Network Discovery and Access System Selection) to evolution Access Network (Evolved RAN), select network and connecting system;
2.UE send Attach Request message (Attach Request) to MME/UPE;
3. if carry the log-on message of old side in the Attach Request message, then MME/UPE sends former registration information (Send old registration information) is obtained the user to old side MME/UPE information;
4. old side MME/UPE sends user profile (Send user information);
5. new side MME/UPE carries out authentication (Authentication) to UE;
6. new side MME/UPE is registered to (Register MME/UPE) among the HSS;
7. delete the log-on message (Delete UE registrationinformation) of UE at old side MME/UPE;
8.HSS confirm the registration (Confirm Registration) of new side MME/UPE;
9.MME/UPE select an Inter AS Anchor (Selection of Intersystem MobilityAnchor GW);
10.Inter AS Anchor uses the distributing IP address of UE to carry out the configuration of IP layer, the user plane between UE and Inter ASAnchor is established, and default charging and policing rule is used (User Plane RouteConfiguration);
11.MME/UPE and the default employed QoS of IP access bearer (Configure IP Bearer QoS) of configuration between the evolution Access Network;
12.MME/UPE that accepts UE adheres to request (Attach Accept), and distributes the temporary mark of UE;
13.UE confirm to adhere to successfully (Attach Confirm).
In said process, for evolvement network, UE sets up default IP carrying when adhering to, so UE evolution block core net network in the flow process of adhering to just need distribute default pdp address to UE, but the evolution block core net network is not known the IP address ability of UE in the existing procedure, so can't determine that the pdp address that distributes to UE is IPv4 address or IPv6 address, reduce the success rate that UE activates.
Summary of the invention
The object of the present invention is to provide and realize the method that pdp address distributes in a kind of service access, be intended to solve exist in the prior art because core net lacks the IP address class type ability information that UE supported, be difficult to for UE distributes pdp address accurately, reduced the problem of UE activation success rate.
The implementation method that provides a kind of user to adhere to is provided.
The present invention is achieved in that and realizes the method that pdp address distributes in a kind of service access that described method comprises the steps:
A. subscriber equipment carries the IP address ability information of supporting to core net in attaching process;
B. core net is the pdp address of the corresponding IP address class type of user equipment allocation according to the address information in described IP address ability information and the user contracting data.
Described steps A comprises the steps:
A1. subscriber equipment sends Attach Request message to core net, carries the IP address ability information that subscriber equipment is supported in the described Attach Request message;
A2. core net is saved in the IP address ability information of the subscriber equipment support of carrying in the described Attach Request message in the user's context.
The IP address ability information of described subscriber equipment support is carried by the MS network capability cell MS network capability in the Attach Request message.
Described step B comprises the steps:
B1. subscriber equipment sends to core net and activates the PDP Context request message;
B2. core net according to subscriber equipment at IP address ability information that Attach Request message carries and the address information in the user contracting data pdp address to the corresponding IP address class type of user equipment allocation;
B3. core net sends the activation PDP Context to subscriber equipment and accepts message, and described activation PDP Context accepts to carry in the message pdp address information to the corresponding IP address class type of user equipment allocation;
B4. the pdp address information of the subscriber equipment corresponding IP address class type accepting to carry in the message according to described activation PDP Context is revised PDP Context.
In described step B2, if subscriber equipment is only supported IPv4, and in the activation request message PDP type is not set, the PDP type in the user contracting data is IPv6, then the activation request of core net refusing user's equipment.
In described step B2, if subscriber equipment is supported IPv4 and IPv6, and in the activation request message PDP type is not set, the PDP type in the user contracting data is IPv4 and IPv6, then core net is to the default IP address class type pdp address of user equipment allocation.
In described step B2, if subscriber equipment is supported IPv4 and IPv6, and the PDP type is set to IPv4 in the activation request message, and the PDP type in the user contracting data is IPv6, and then core net is to the pdp address of user equipment allocation IPv6 address style.
In described step B2, if subscriber equipment is supported IPv4 and IPv6, and the PDP type is set to IPv6 in the activation request message, and the PDP type in the user contracting data is IPv4, and then core net is to the pdp address of user equipment allocation IPv4 address style.
Among the present invention, IP address ability information that core net provides in attaching process according to UE and the address information in the user contracting data are distributed pdp address from corresponding IP address class type to UE, can improve the activation success rate of UE, low to customer requirements, thus improved user's service satisfaction.
Description of drawings
Fig. 1 is the network structure of existing GPRS/UMTS;
Fig. 2 is an evolution block core net network Organization Chart;
Fig. 3 be in the prior art in the 3GPP network user activated realization flow figure;
Fig. 4 is the prior art realization flow figure that the user adheres in the evolution core net in the evolution core net;
Fig. 5 is the realization flow figure that the user adheres in the 3GPP network among the present invention;
Fig. 6 be among the present invention in the 3GPP network user activated realization flow figure;
Fig. 7 is the realization flow figure that the present invention user in the evolution core net adheres to.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention carries the IP address ability information of UE to core net in the process that UE adheres to, and core net is judged the IP address ability information of UE when distributing pdp address to UE, distributes the pdp address of corresponding IP address class type.
In the first embodiment of the present invention, implementation procedure of the present invention in the 3GPP network has been described.
Fig. 5 shows the realization flow that the user adheres in the 3GPP network among the present invention:
1.UE initiate Attach Request message (Attach Request) to SGSN, UE carries the IP address ability information of oneself supporting and gives SGSN in the MS of Attach Request message network capabilities (MS network capability) cell;
Below carry the example structure of the MSnetwork capability cell of the IP address ability information that UE supports for the present invention in Attach Request message, wherein increased IP ability (IP capability) parameter in cell, its optional value has:
(1) MS only supports Ipv4 (Mobile station support IPv4 only);
(2) MS only supports Ipv6 (Mobile station support IPv6 only);
(3) MS only supports Ipv4 and Ipv6 (Mobile station support IPv4 and IPv6)
(4) keep (Reserved)
2.UE, carry out authentication (Authentication) between SGSN and the HLR;
3.SGSN initiate location update request message (Update Location) to HLR;
4.HLR send insertion user data requests message (Insert Subscriber Data) to SGSN;
5.SGSN return insertion user data acknowledge message (Insert Subscriber Data Ack) to HLR;
6.HLR upgrade acknowledge message (Update Location Ack) to the SGSN home position;
7.SGSN send to adhere to UE and accept message (Attach Accept), SGSN is saved in the IP address ability information that UE supports in the user's context, this operation also can realize in the step in front, among the present invention this do not limited.
8.UE send to adhere to MME/UPE and finish message (Attach Complete).
Fig. 6 shows among the present invention user activated realization flow in the 3GPP network:
Activate PDP Context request message (Activate PDP Context Request) to SGSN 1.UE send;
2.SGSN the legitimacy of the activation PDP Context request message that checking UE sends, this checking is determined according to the UE IP address ability information of preserving in the PDP type (optional) that provides in UE and the PDP Context subscription data, pdp address (optional) and APN (optional) and the user's context.If request message is legal, then send and create PDP Context request message (Create PDP Context Request) to GGSN, in the message IP address ability information of UE is carried to GGSN;
Give SGSN 3.GGSN return to create PDP Context response message (Create PDP Context Response), if when UE is given in GGSN distributing IP address then GGSN distributes the pdp address of corresponding IP address class type according to the IP address ability information of UE;
Upgrade PDP Context request message (Update PDP Context Request) to GGSN 4.SGSN send;
Upgrade PDP Context response message (Update PDP Context Response) to SGSN 5.GGSN return;
Accept message (Activate PDP Context Accept) to UE 6.SGSN send the activation PDP Context.
7.UE at the PDP Context of receiving that the PDP type accepting to carry in the message according to activation after activating PDP Context accepts message and pdp address are revised oneself.
In said process, for the UE that only supports IPv4, the PDP type is not provided with in the request message if it activates, and the PDP type in its subscription data is IPv6, then core net is directly refused the activation request message of UE, and cause value is " unknown PDP address or PDP type ";
For the UE that supports IPv4 and IPv6, the PDP type is not provided with in the request message if it activates, PDP type in its subscription data is IPv4, IPv6, and then core net distributes default IP address class type pdp address to give UE, and default IP address class type is determined by core net inside and operator etc.;
For the UE that supports IPv4 and IPv6, the PDP type is set to IPv4 in the request message if it activates, and the PDP type in its subscription data is IPv6, and then core net is not refused the activation request of UE, and the pdp address of distributing IP v6 address style is given UE;
For the UE that supports IPv4 and IPv6, the PDP type is set to IPv6 in the request message if it activates, and the PDP type in its subscription data is IPv4, and then core net is not refused the activation request of UE, and the pdp address of distributing IP v4 address style is given UE.
In the first embodiment of the present invention, implementation procedure of the present invention in the evolution core net has been described.
Fig. 7 shows the present invention's realization flow that the user adheres in the evolution core net:
1.UE send network discovery and connecting system selection message (Network Discoveryand Access System Selection) to evolution Access Network (Evolved RAN), select network and connecting system;
2.UE send Attach Request message (Attach Request) to MME/UPE, UE carries the IP address ability information of oneself supporting and gives the evolution block core net network in the MS of Attach Request message network capability cell, the example structure of MS network capability cell repeats no more as mentioned above;
3. if carry the log-on message of old side in the Attach Request message, then MME/UPE sends former registration information (Send old registration information) is obtained the user to old side MME/UPE information.The evolution block core net network is saved in the IP address ability information of UE in the user's context simultaneously;
4. old side MME/UPE sends user profile (Send user information);
5. new side MME/UPE carries out authentication (Authentication) to UE;
6. new side MME/UPE is registered to (Register MME/UPE) among the HSS;
7. delete the log-on message (Delete UE registrationinformation) of UE at old side MME/UPE;
8.HSS confirm the registration (Confirm Registration) of new side MME/UPE;
9.MME/UPE select an Inter AS Anchor (Selection of Intersystem MobilityAnchor GW);
10. the evolution block core net network is determined the pdp address of UE according to the PDP type that IP address ability information and the user of UE contracts, and specific implementation repeats no more as mentioned above.
Inter AS Anchor uses the distributing IP address of UE to carry out the configuration of IP layer, and the user plane between UE and Inter ASAnchor is established, and default charging and policing rule are used;
11.MME/UPE and the default employed QoS of IP access bearer (Configure IP Bearer QoS) of configuration between the evolution Access Network;
12.MME/UPE that accepts UE adheres to request (Attach Accept), and the temporary mark of distribution UE, carry PDP type and the pdp address of distributing to UE, UE receives to adhere to and accepts after the message in the context that the PDP type of will carry in the message and pdp address be saved in oneself.
13.UE confirm to adhere to successfully (Attach Confirm).
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1, realizes the method that pdp address distributes in a kind of service access, it is characterized in that described method comprises the steps:
A. subscriber equipment carries the IP address ability information of supporting to core net in attaching process;
B. core net is the pdp address of the corresponding IP address class type of user equipment allocation according to the address information in described IP address ability information and the user contracting data.
2, realize the method that pdp address distributes in the service access as claimed in claim 1, it is characterized in that described steps A comprises the steps:
A1. subscriber equipment sends Attach Request message to core net, carries the IP address ability information that subscriber equipment is supported in the described Attach Request message;
A2. core net is saved in the IP address ability information of the subscriber equipment support of carrying in the described Attach Request message in the user's context.
3, realize the method that pdp address distributes in the service access as claimed in claim 1 or 2, it is characterized in that the IP address ability information of described subscriber equipment support is carried by the MS network capability cell MS network capability in the Attach Request message.
4, realize the method that pdp address distributes in the service access as claimed in claim 1, it is characterized in that described step B comprises the steps:
B1. subscriber equipment sends to core net and activates the PDP Context request message;
B2. core net according to subscriber equipment at IP address ability information that Attach Request message carries and the address information in the user contracting data pdp address to the corresponding IP address class type of user equipment allocation;
B3. core net sends the activation PDP Context to subscriber equipment and accepts message, and described activation PDP Context accepts to carry in the message pdp address information to the corresponding IP address class type of user equipment allocation;
B4. the pdp address information of the subscriber equipment corresponding IP address class type accepting to carry in the message according to described activation PDP Context is revised PDP Context.
5, realize the method that pdp address distributes in the service access as claimed in claim 4, it is characterized in that, in described step B2, if subscriber equipment is only supported IPv4, and the PDP type is not set in the activation request message, PDP type in the user contracting data is IPv6, then the activation request of core net refusing user's equipment.
6, realize the method that pdp address distributes in the service access as claimed in claim 4, it is characterized in that, in described step B2, if subscriber equipment is supported IPv4 and IPv6, and the PDP type is not set in the activation request message, PDP type in the user contracting data is IPv4 and IPv6, and then core net is to the default IP address class type pdp address of user equipment allocation.
7, realize the method that pdp address distributes in the service access as claimed in claim 4, it is characterized in that, in described step B2, if subscriber equipment is supported IPv4 and IPv6, and the PDP type is set to IPv4 in the activation request message, PDP type in the user contracting data is IPv6, and then core net is to the pdp address of user equipment allocation IPv6 address style.
8, realize the method that pdp address distributes in the service access as claimed in claim 4, it is characterized in that, in described step B2, if subscriber equipment is supported IPv4 and IPv6, and the PDP type is set to IPv6 in the activation request message, PDP type in the user contracting data is IPv4, and then core net is to the pdp address of user equipment allocation IPv4 address style.
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| CN101540995B (en) | 2008-03-21 | 2011-06-08 | 华为技术有限公司 | Method for acquiring information, user equipment and network side equipment |
| CN101674336B (en) * | 2008-09-08 | 2012-12-05 | 电信科学技术研究院 | Method for allocating IP addresses and communication system |
| CN101873582B (en) * | 2009-04-23 | 2013-04-03 | 电信科学技术研究院 | IP (Internet Protocol) address allocation method and system |
| CN102025800B (en) | 2010-12-30 | 2013-04-24 | 华为技术有限公司 | IP address allocation method and device |
| EP2695473A1 (en) * | 2011-04-07 | 2014-02-12 | Telefonaktiebolaget LM Ericsson (PUBL) | Quality of service handling in packet core and radio networks |
| CN106817688B (en) * | 2015-12-01 | 2020-04-03 | 中兴通讯股份有限公司 | Method and device for dynamically adjusting packet data protocol subscription data during roaming |
| CN106911489B (en) * | 2015-12-22 | 2019-08-27 | 中国电信股份有限公司 | A kind of automatic adaptation method of access device, managing device and system |
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Application publication date: 20061108 Assignee: APPLE Inc. Assignor: HUAWEI TECHNOLOGIES Co.,Ltd. Contract record no.: 2015990000755 Denomination of invention: Method for realizing PDP address distribution in service cut-in Granted publication date: 20090429 License type: Common License Record date: 20150827 |
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Address after: Unit 03, Room 1501, 15th Floor, Unit 1, Building 1, No.1 East Third Ring Middle Road, Chaoyang District, Beijing, 100020 Patentee after: Beijing Jingshi Intellectual Property Management Co.,Ltd. Address before: Unit 04-06, Unit 1, Unit 2101, Building 1, No.1 East Third Ring Middle Road, Chaoyang District, Beijing, 100020 Patentee before: Beijing Heyi Management Consulting Co.,Ltd. |