CN103476019B - Method, system and home subscriber server for obtaining access point name - Google Patents

Abstract

The embodiment of the present invention discloses a method and system for obtaining an access point name, and a home user server. The method for obtaining an access point name in the embodiment of the present invention includes: the home user server receives the information sent by the mobile management entity for obtaining the CPE The request for the subscription information, the request for the subscription information includes: the identity code and the first parameter of the CPE, and after the home subscriber server finds the subscription information according to the identity code and the first parameter of the CPE, according to the The identity code and the first parameter look up the APN corresponding to the first parameter in the parameter mapping table, and then map the first parameter sent by the CPE to the LTE network (for example, including evolved base station, MME, The APN parameters that can be recognized by the service gateway, HSS, and PDN gateway can make the CPE not need to accept the APN parameters manually configured by the user before requesting to attach.

Description

Method and system for obtaining access point name, and home user server

technical field

The invention relates to the communication field, in particular to a method and system for acquiring access point names, and a home user server.

Background technique

With the development of services and networks, traditional service operators are gradually separated into network channel providers (CP, Channel Provider) and service providers (SP, Service Provider). Service access, allowing users to choose SP freely.

In the prior art, parameter information such as an access point name (APN, Access Point Name) and a virtual local area network (VLAN, Virtual Local Area Network) have been preconfigured in customer premise equipment (CPE, customer premise equipment). When the user needs to replace the SP, the local configuration method can be used to reconfigure the APN. When configuring locally, the user first needs to log in to the CPE interface and manually configure the APN parameters in the CPE. After the configuration is successful, the CPE requests to attach to the LTE network according to the APN parameters manually configured by the user. It can be seen that the existing CPE must accept the APN parameters manually configured by the user before it can request to attach to the LTE network.

Contents of the invention

The present invention provides a method and system for obtaining access point names, and a home user server to solve the technical problem that the existing CPE must accept the APN parameters manually configured by the user before it can request attachment to the LTE network.

The first aspect of the embodiments of the present invention provides a method for obtaining an access point name, including:

The home subscriber server HSS receives the request for acquiring the subscription information of the CPE sent by the mobility management entity MME, wherein the request for the subscription information includes: the identity code and the first parameter of the CPE;

The HSS searches for the subscription information according to the identity code and the first parameter, the subscription information includes: the correspondence between the CPE user and the subscription service, and the subscription service is related to the first A parameter corresponding to the service provided by the service provider;

If the HSS finds the subscription information, the HSS searches the parameter mapping table for the access point name APN corresponding to the first parameter according to the identity code, and the APN is used for the CPE to access The services provided by the service provider.

With reference to the first aspect of the embodiments of the present invention, in the first implementation of the first aspect of the embodiments of the present invention, it includes: the identity code and the first parameter are attachments sent by the base station from the CPE After being obtained in the request, it is sent to the MME.

With reference to the first aspect of the embodiments of the present invention, in the second implementation manner of the first aspect of the embodiments of the present invention, after the HSS finds the APN, it further includes:

The HSS configures a range of Internet Protocol IP addresses for the CPE according to the APN and the identification code;

The HSS sends the APN, the range of the IP address and the identification code to the PDN gateway selected by the MME via the MME.

With reference to the second implementation manner of the first aspect of the embodiments of the present invention, in the third implementation manner of the first aspect of the embodiments of the present invention, it further includes: the PDN gateway according to the received identification code, The range of the APN and the IP address is an IP address configured for the CPE, and the IP address belongs to the range of the IP address;

The PDN gateway sends the IP address to the CPE according to the identification code, and the IP address is used for establishing a connection between the CPE and the PDN gateway.

In combination with the first aspect of the embodiments of the present invention, or the first implementation manner of the first aspect, or the second implementation manner of the first aspect, or the third implementation manner of the first aspect, in the first implementation manner of the embodiments of the present invention In a fourth implementation manner of one aspect, the subscription information further includes: a correspondence between the identity code, the first parameter, the subscription service, and the APN.

In combination with the first aspect of the embodiments of the present invention, or the first implementation manner of the first aspect, or the second implementation manner of the first aspect, or the third implementation manner of the first aspect, in the first implementation manner of the embodiments of the present invention In a fifth implementation manner of one aspect, the parameter mapping table includes: a correspondence between the ID code, the first parameter, and the APN.

With reference to the first aspect of the embodiments of the present invention, the sixth implementation manner of the first aspect of the embodiments of the present invention includes: the parameter mapping table is stored by the HSS.

The second aspect of the embodiments of the present invention provides a home subscriber server HSS, the HSS includes: a receiver, a data bus for transmitting data, and a processor;

The receiver is configured to receive a request sent by a mobility management entity MME for obtaining subscription information of a user end equipment CPE, wherein the request for subscription information includes: an identity code and a first parameter of the CPE;

The processor is configured to search for the subscription information according to the identity code and the first parameter, the subscription information includes: a correspondence between the user of the CPE and a subscription service, and the subscription service is related to the The service provided by the service provider corresponding to the above-mentioned first parameter;

The processor is further configured to, when the subscription information is found, search for an access point name APN corresponding to the first parameter in a parameter mapping table according to the identification code.

With reference to the second aspect of the embodiments of the present invention, in the first implementation manner of the second aspect of the embodiments of the present invention, it includes: the processor is further configured to provide the CPE with the APN and the identification code Configure the range of Internet Protocol IP addresses;

The HSS further includes: a sender, configured to send the APN, the range of the IP address, and the identification code to a PDN gateway selected by the MME via the MME.

With reference to the second aspect of the embodiments of the present invention, or the first implementation manner of the second aspect, in the second implementation manner of the second aspect of the embodiments of the present invention, the HSS further includes: a memory for storing the The subscription information and the parameter mapping table, wherein the subscription information also includes: the corresponding relationship between the identity code, the first parameter, the subscription service, and the APN; the parameter mapping table includes : the correspondence between the ID code, the first parameter, and the APN.

A third aspect of the embodiments of the present invention provides a system for obtaining an access point name, and the system for obtaining an access point name includes:

The mobility management entity MME is configured to send a request for obtaining the subscription information of the user end equipment CPE to the home subscriber server HSS, wherein the request for the subscription information includes: the identity code and the first parameter of the CPE;

The HSS is configured to search for the subscription information according to the identity code and the first parameter, the subscription information includes: the correspondence between the CPE user and the subscription service, and the subscription service is related to The service provided by the service provider corresponding to the first parameter, and when the subscription information is found, look up the access point name APN corresponding to the first parameter in the parameter mapping table according to the identification code .

With reference to the third aspect of the embodiments of the present invention, in the first implementation manner of the third aspect of the embodiments of the present invention, it includes: the HSS is further configured to configure the CPE according to the APN and the identification code The range of the Internet protocol IP address, and send the APN, the range of the IP address and the identification code to the MME.

With reference to the first implementation manner of the third aspect of the embodiments of the present invention, in the second implementation manner of the third aspect of the embodiments of the present invention, it includes: the system further includes:

a packet data network PDN gateway, configured to receive the APN, the range of the IP address, and the identification code through the MME, and set the The CPE configures an IP address, wherein the IP address belongs to the range of the IP address;

The PDN gateway is further configured to send the IP address to the CPE according to the identification code, where the IP address is used for establishing a connection between the CPE and the PDN gateway.

With reference to the second implementation manner of the third aspect of the embodiments of the present invention, in the third implementation manner of the third aspect of the embodiments of the present invention, it includes: the PDN gateway is further configured to The CPE establishes the connection.

With reference to the third aspect of the embodiments of the present invention, in a fourth implementation manner of the third aspect of the embodiments of the present invention, the system further includes:

The MME is further configured to obtain, from the base station, the identity code and the first parameter in the attach request sent by the CPE to the base station.

Combining the third aspect of the embodiments of the present invention, or the first implementation manner of the third aspect, or the second implementation manner of the third aspect, or the third implementation manner of the third aspect, or the fourth implementation manner of the third aspect In the fifth implementation manner of the third aspect of the embodiments of the present invention, the HSS is further configured to store the subscription information and the parameter mapping table, wherein the subscription information further includes: the The correspondence between the identity code, the first parameter, the subscription service, and the APN, the parameter mapping table includes: the identity code, the first parameter, and the APN Correspondence.

In the technical solution, the home user server receives the request sent by the mobility management entity for obtaining the subscription information of the CPE, the request for the subscription information includes: the identity code and the first parameter of the CPE, and the home user server sends the request according to the CPE's subscription information. After the identification code and the first parameter find the subscription information, the APN corresponding to the first parameter is searched in the parameter mapping table according to the identification code and the first parameter, and then the APN sent by the CPE is sent through the parameter mapping table. The first parameter is mapped to an APN parameter that can be recognized by the LTE network (e.g., including evolved base station, MME, serving gateway, HSS, and PDN gateway), so that the CPE does not need to accept the APN parameter manually configured by the user before requesting attachment.

Description of drawings

FIG. 1 is a schematic diagram of a method for obtaining an access point name provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of a method for obtaining an access point name provided by another embodiment of the present invention;

FIG. 3 is a schematic diagram of signaling interaction of a method for obtaining an access point name provided by another embodiment of the present invention;

FIG. 4 is a structural reference diagram of a home subscriber server provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of a home subscriber server provided by another embodiment of the present invention;

FIG. 6 is a schematic diagram of a home subscriber server provided by another embodiment of the present invention;

FIG. 7 is a schematic diagram of a home subscriber server provided by another embodiment of the present invention;

Fig. 8 is a system schematic diagram of an access point name provided by an embodiment of the present invention;

Fig. 9 is a schematic diagram of a system for obtaining an access point name provided by another embodiment of the present invention.

detailed description

Embodiments of the present invention provide a method and system for obtaining an access point name, and a home user server, which enable the CPE to not accept APN parameters manually configured by the user before requesting attachment.

It should be noted that the CPE and the terminal in each embodiment of the present invention are different devices, and there are a certain number of ports on the CPE, and the CPE is connected to the terminal through the port, wherein each port can correspond to a service or service of an SP. Multiple businesses. For example, the CPE may be a modem, and the terminal may be a computer, or a set-top box, or a mobile phone.

Please refer to FIG. 1 , an embodiment of the present invention provides a method for obtaining an access point name, and the method may include the following steps.

101. The HSS receives the request sent by the MME for obtaining the subscription information of the CPE;

In this embodiment, the Home Subscriber Server (HSS, Home Subscriber Server) may receive a request for acquiring subscription information of the CPE sent by a Mobility Management Entity (MME, Mobility Management Entity), where the request for subscription information includes: the identity of the CPE ID and first parameter.

102. The HSS searches for subscription information according to the identity code and the first parameter;

In this embodiment, the HSS can find out the subscription information of the user and the operator by the identity code of the CPE in step 101 and the first parameter. The subscription information is: the corresponding relationship between the user of the CPE and the subscription service, the subscription The service is the service provided by the service provider corresponding to the first parameter.

103. If the HSS finds the subscription information, the HSS searches the parameter mapping table for the APN corresponding to the first parameter according to the identification code.

In this embodiment, the HSS searches the parameter mapping table for the APN corresponding to the first parameter according to the ID code. Optionally, the APN is used to identify a service provider (for example, Skype, etc.).

It should be noted that when a user needs to subscribe to different services of the same service provider, there is no need to change the APN parameters, and the LTE protocol regulations of the 3GPP (The3rd Generation Partnership Project) can be referred to.

It should be noted that the above-mentioned first parameter can only be identified by network elements in the LTE network that store the parameter mapping table. For example, the LTE network in this embodiment includes: evolved base stations (eNB, E-UTRAN Node B), MME, Serving Gateway (SGW, Serving Gateway), HSS and Packet Data Network (PDN, Packet Data Network) gateway.

In this embodiment, the HSS receives the request for obtaining the subscription information of the CPE sent by the MME, and the request for the subscription information includes: the identity code and the first parameter of the CPE, and the HSS sends the request according to the identity code and the first parameter of the CPE. After the first parameter finds the subscription information, look up the APN corresponding to the first parameter in the parameter mapping table according to the identity code and the first parameter, and then map the first parameter sent by the CPE through the parameter mapping table APN parameters that can be recognized by the LTE network (for example, including eNB, HSS, MME, SGW, and PDN gateway) can prevent the CPE from accepting the APN parameters manually configured by the user before requesting to attach. That is, for the CPE, the first parameter is visible, but the relationship between the first parameter and the APN parameter, and the APN parameter itself may not be visible. In addition, the present invention does not limit the implementation form of the first parameter, and any number and sequence can be used as an implementation form of the first parameter. For example, the format of the first parameter may be the same as that of the APN parameter.

For ease of understanding, the method for obtaining the name of the access point in the embodiment of the present invention is described below with a specific example in which the IP address of the CPE is dynamically allocated. Please refer to FIG. 2 , another embodiment of the present invention provides obtaining A method for an access point name, the method may include the following steps.

201. The HSS receives the request sent by the MME for obtaining the subscription information of the CPE;

In this embodiment, the HSS may receive the request sent by the MME for obtaining the subscription information of the CPE, where the request for the subscription information includes: the identity code and the first parameter of the CPE, and optionally, the identity code and the The first parameter is obtained by the eNB from the attach request sent by the CPE, and then sent to the MME.

It should be noted that the CPE sends an attach request to the eNB in the LTE network to request to attach to the LTE network where the eNB is located. If the CPE establishes a connection with the PDN gateway in the LTE network, the CPE successfully attaches to the LTE network. In the network, this process may be performed according to the LTE protocol of 3GPP (The3rd Generation Partnership Project).

Optionally, after a user signs a contract with an operator, the subscription information between the user and the operator will be stored in the HSS. The subscription information is: the corresponding relationship between the user of the CPE and the contracted service, and the contracted service is related to the The service provided by the SP corresponding to the first parameter, the subscription information includes: the identity code, the first parameter, the corresponding relationship between the subscription service and the APN, for example, the first parameter A of user A corresponds to the service provided by the SP For the service provided by SP1, user A signs a contract with the operator to change the service provided by SP1 corresponding to the opened first parameter A to the service provided by SP2. At this time, the subscription information includes the identity code of user A's CPE, the first parameter A. The service provided by SP2 corresponding to the first parameter A and the APN corresponding to SP2.

A subscriber identity module (SIM, subscriber identity module) is built into the CPE, and the identity code of the CPE can be an International Mobile Subscriber Identification Number (IMSI, International Mobile Subscriber Identification Number). Of course, those skilled in the art can also customize the subscriber identity code , which is not limited here. In this embodiment, the identification code is IMSI as an example for illustration.

202. The HSS judges whether the subscription information is found according to the identity code and the first parameter, if yes, execute step 203, if not, execute step 212;

203. The HSS determines that the user of the CPE has subscribed to the service provided by the SP corresponding to the first parameter;

In this embodiment, since the subscription information includes the ID code and the first parameter, in step 202, the HSS can judge whether the subscription information is found according to the ID code and the first parameter, and if so, the HSS can determine the CPE ID in step 203. The user has subscribed to open the service provided by the SP corresponding to the first parameter. Optionally, the operator can allow the user to sign up for a specified number of service providers at the same time. The number of contracted service providers is the same, and the operator can limit the number of simultaneous contracts with different service providers according to different levels of users. The higher the level of the user, the more the number of simultaneous contracts with different service providers.

204. The HSS searches the parameter mapping table for the APN corresponding to the first parameter according to the identification code;

Table 1

IMSI first parameter APNs second parameter VLAN IP address 234‐xxx‐1111 first parameter A APN1 Second parameter A VLAN1 IP1 234‐xxx‐1111 first parameter B APN3 Second parameter B VLAN2 IP2 234‐xxx‐1111 first parameter C The second parameter C 234‐xxx‐1111 first parameter D The second parameter D 234‐xxx‐2222 first parameter A APN4 Second parameter A VLAN3 IP3 234‐xxx‐2222 first parameter B Second parameter B 234‐xxx‐2222 first parameter C The second parameter C 234‐xxx‐2222 first parameter D The second parameter D

The parameter mapping table in this embodiment is shown in Table 1 above. Taking the identity code of the CPE as IMSI as an example, the columns of the parameter mapping table mainly include: IMSI, first parameter, APN, second parameter, virtual local area network (VLAN , Virtual LocalArea Network) parameter and IP address, wherein, the first parameter has a corresponding relationship with the APN, and the second parameter has a corresponding relationship with the VLAN parameter, and the parameter mapping table is stored in the operator's server, HSS network element and In the (NNI, Network-NetworkInterface) gateway, of course, those skilled in the art can adjust the columns in the parameter mapping table according to different application scenarios. For example, refer to the LTE protocol specification of 3GPP.

Optionally, each time the CPE is turned on, it must perform the process of requesting from the CPE to the MME to attach to the CPE and establish a connection with the PDN gateway. In the actual application of this embodiment, when the user wants to switch the SP, the user first needs to Sign a contract with the operator and generate contract information, but the user may not switch the SP for the user immediately after signing the contract with the operator. The operator needs to specify a date to access and switch the SP. For example, the operator can stipulate 0:00 on the 1st of each month is used as the operation date for access switching SP.

In this embodiment, the HSS can look up the APN corresponding to the first parameter in the parameter mapping table according to the identity code of the CPE. The parameter mapping table is stored in the HSS, and the first parameter in the parameter mapping table is related to the APN There is a corresponding relationship. Optionally, the operator can set up a server to maintain the parameter mapping table, and the server can automatically update the parameters APN and VLAN parameters in the parameter mapping table by looking up the subscription information. Of course, the operator can also use the subscription information. Manually update the parameter mapping table, which is not limited here, and then the operator sends the updated parameter mapping table to the HSS for storage. Every time the user switches the SP, the operator needs to update the parameter mapping table in the HSS synchronously For example, before user A signs a contract with the operator, the first parameter C corresponds to not having opened any services. When the subscription information of user A and the operator includes the IMSI of user A's CPE, the first parameter C For the service provided by SP1, the operator configures an APN corresponding to the first parameter C in the parameter mapping table according to the IMSI of the CPE of user A and the first parameter C, where the APN corresponds to the SP1.

205. The HSS configures an IP address range for the CPE according to the APN and the identification code;

In this embodiment, the HSS configures the range of IP addresses for the CPE according to the APN found in step 204 and the identity code of the CPE. For example, the range of IP addresses configured by the HSS for the CPE is 192.168.1.*, the IP The address range HSS can be selected according to different IP address pools, which is the prior art here and will not be repeated here.

206. The HSS sends the APN, the range of the IP address, and the identification code to the PDN gateway selected by the MME via the MME;

In this embodiment, the HSS sends the APN, the range of IP addresses configured for the CPE in step 205, and the identity code of the CPE to the PDN gateway selected by the MME via the MME. Optionally, the HSS first needs to Send the CPE's APN, IP address range and identity code to the MME, and then the MME can select the PDN gateway according to the CPE's APN, the identity code and Tracking Area Identity (TAI, Tracking Area Identity) , and forward the APN of the CPE, the range of the IP address, and the identity code received from the HSS to the PDN gateway. The process of selecting a PDN gateway by the MME is a prior art, and will not be repeated here.

207. The PDN gateway configures an IP address for the CPE according to the received identity code, the APN, and the range of the IP address;

In this embodiment, the PDN gateway can configure an IP address for the CPE according to the identity code of the CPE received in step 206, the APN, and the range of the IP address, wherein the IP address belongs to the range of the IP address. Range, for example, when the IP address range received by the PDN gateway is 192.168.1.*, the PDN gateway configures an IP address 192.168.1.1 for the CPE according to the IP address range 192.168.1.*, where the PDN gateway The configured IP address is within the range of received IP addresses.

208. The PDN gateway sends the IP address to the CPE according to the identification code;

In this embodiment, the PDN gateway sends the IP address configured for the CPE in step 207 to the CPE according to the identity code of the CPE. At this time, the PDN gateway establishes a connection with the CPE, wherein the IP address is used for the CPE Establish a connection with the PDN gateway.

It should be noted that when the IP address of the CPE is static, when the user of the CPE signs a contract with the operator, the operator will configure a fixed IP address for the CPE and add the IP address to the subscription information, and the HSS Just look up the IP address in the subscription information according to the identity code of the CPE, and then the HSS updates the IP address to the parameter mapping table stored by itself. Here, from the IP address configured by the HSS for the CPE to the PDN gateway, the IP The address can be sent to the CPE using existing technologies, which will not be described here. For example, refer to the 3GPP LTE protocol: no matter whether the IP address is allocated dynamically or statically, the PDN gateway sends the IP address to the CPE.

209. The NNI gateway receives the first message sent by the CPE;

In this embodiment, after the CPE receives the IP address sent by the PDN gateway in step 208 to enable the CPE to establish a connection with the PDN gateway, the NNI gateway can receive the first message sent by the CPE, the first message A message includes the identity code and the second parameter of the CPE. Optionally, each port of the CPE can correspond to one service or multiple services of an SP. For example, port 1 of CPE1 can correspond to instant messaging of SP1 , can also correspond to SP1's instant messaging, video, game and other services. Optionally, each port of the CPE corresponds to a second parameter. For the instant messaging service provided by the SP1, after the CPE1 establishes a connection with the PDN gateway in step 209, the CPE1 can send the first message with the second parameter A and the IMSI of the CPE1 through the port 1 to the NNI gateway.

210. The NNI gateway obtains the IP address of the CPE, binds the IP address to the identification code, and updates the IP address to the parameter mapping table according to the identification code;

In this embodiment, the NNI gateway obtains the IP address of the CPE according to the first message sent by the CPE, and then the NNI gateway binds the IP address with the identification code received from the CPE, so that when the CPE When sending a message to the NNI gateway, the message only needs to include the second parameter, and then the NNI gateway updates the IP address of the CPE to the parameter mapping table stored by itself according to the identification code.

211. The NNI gateway searches the parameter mapping table for a VLAN parameter corresponding to the second parameter according to the identification code;

In this embodiment, the second parameter in the parameter mapping table stored by the NNI gateway has a corresponding relationship with the VLAN parameter, and the NNI gateway searches the parameter mapping table for the VLAN parameter corresponding to the second parameter according to the identity code of the CPE. Specifically, as shown in the above parameter mapping table, let the IMSI of CPE1 be 234-xxx-1111. In step 210, the NNI gateway receives the second parameter A and 234-xxx-1111 sent by CPE1 through port 1. Then the NNI gateway looks up the VLAN1 parameter corresponding to the second parameter A in the parameter mapping table stored in itself according to 234-xxx-1111, so that CPE1 establishes an L2 tunnel with the NNI gateway, wherein the L2 tunnel is two The tunnel under the layer protocol, the process of establishing an L2 tunnel between the CPE and the NNI gateway is an existing technology, and will not be described here. Optionally, after the NNI gateway establishes an L2 tunnel with the CPE1, the NNI gateway sends a feedback confirmation message to the CPE1 notifies the CPE1 that the establishment of the L2 tunnel is completed, so that the CPE1 can connect to the service of the SP corresponding to the VLAN1 parameter through the VLAN1 parameter.

Optionally, the names of the first parameter and the second parameter are not limited. For example, for the convenience of technicians to communicate, the first parameter can be called a virtual APN, and the second parameter can be called a local VLAN parameter. It should be noted that, The first parameter in this embodiment can only be identified by the HSS in the LTE network that stores the parameter mapping table, and the second parameter in this embodiment can only be identified by the NNI gateway that stores the parameter mapping table. The LTE network in this embodiment includes: eNB, MME, SGW, HSS and PDN gateway.

212. The HSS sends an attach reject message to the CPE via the MME.

In this embodiment, when the HSS does not find the subscription information according to the ID code and the first parameter in step 202, the HSS may send an attach rejection message to the CPE via the MME according to the ID code.

In this embodiment, the HSS receives the request for obtaining the subscription information of the CPE sent by the MME, and the request for the subscription information includes: the identity code and the first parameter of the CPE, and the HSS sends the request according to the identity code and the first parameter of the CPE. After the first parameter finds the subscription information, look up the APN corresponding to the first parameter in the parameter mapping table according to the identity code and the first parameter, and then use the parameter mapping table to map the first parameter sent by the CPE into The APN parameters that can be recognized by the LTE network (e.g., including eNB, HSS, MME, SGW, and PDN gateway) can make the CPE do not need to accept the APN parameters manually configured by the user before requesting attachment, and when multiple CPEs send the first parameter , the HSS can search the corresponding APN parameters in the parameter mapping table for the first parameter sent by each CPE at the same time, so that when the CPE switches SPs in batches, it can find the APN parameters corresponding to the SPs, and the NNI gateway can The identification code of the identification code searches the VLAN parameter corresponding to the second parameter in the parameter mapping table, and the second parameter sent by the CPE is mapped to the VLAN parameter that the network of the SP can recognize through the parameter mapping table like this, can avoid in the prior art, Carriers need to individually configure VLAN parameters for each CPE. That is, for the CPE, the first parameter and the second parameter are visible, but the relationship between the first parameter and the APN parameter, the relationship between the second parameter and the VLAN parameter, and the APN parameter and the VLAN parameter themselves may not be visible of. In addition, the present invention does not limit the implementation form of the first parameter and the second parameter, and any number and sequence can be used as an implementation form of the first parameter or the second parameter. Of course, the format of the first parameter can also be the same as the APN parameter The format of the parameter is the same, and the format of the second parameter may also be the same as that of the VLAN parameter.

Taking the parameters in the first line of the above-mentioned Table 1 as an example, and the IP address is allocated dynamically, the signaling interaction process of the method for obtaining the name of the access point provided by another embodiment of the present invention is introduced. Please refer to FIG. 3. The method may include the following steps.

301. The CPE sends an attach request with the first parameter A and 234-xxx-1111 to the MME;

302. The MME sends a request for acquiring subscription information with the first parameter A and the 234-xxx-1111 to the HSS;

303. The HSS searches for the subscription information according to the first parameter A and the 234-xxx-1111, and when the subscription information is found, the HSS searches the parameter mapping table stored in itself according to the 234-xxx-1111 The APN1 corresponding to the first parameter A, the range of the IP address configured for the CPE and the 234-xxx-1111 are fed back to the MME;

304. The MME forwards the 234-xxx-1111, the range of the IP address, and the APN1 to the PDN gateway selected by the MME according to the APN1, the 234-xxx-1111, and the TAI of the CPE;

305. The PDN gateway sends the IP address to the CPE according to the 234-xxx-1111, the range of the IP address, and the IP address configured by the APN1 for the CPE;

306. The CPE sends the first message including the 234-xxx-1111 and the second parameter A to the NNI gateway;

307. The NNI gateway looks up the VLAN1 parameter corresponding to the second parameter A in its own stored parameter mapping table according to the 234-xxx-1111 and the second parameter A, and establishes an L2 tunnel with the CPE, and the NNI gateway will The feedback acknowledgment information that the L2 tunnel has been established is sent to the CPE.

The following describes the HSS of the embodiment of the present invention for performing the above-mentioned method for obtaining the name of the access point, and its basic logical structure refers to FIG. include:

Receiver 401, data bus 402 and processor 403 for transmitting data;

The receiver 401 is configured to receive the request sent by the MME for obtaining the subscription information of the CPE, where the request for the subscription information includes: the identity code and the first parameter of the CPE;

The processor 403 is configured to search for subscription information according to the identity code and the first parameter, the subscription information is: the correspondence between the user of the CPE and the subscription service, and the subscription service is the corresponding relationship between the user and the subscription service corresponding to the first parameter. Services provided by SP;

The processor 403 is further configured to, when the subscription information is found, search for the APN corresponding to the first parameter in the parameter mapping table according to the identification code.

In this embodiment, the receiver 401 receives the request for acquiring the subscription information of the CPE sent by the MME, the request for the subscription information includes: the identity code of the CPE and the first parameter, and the processor 403 sends the request according to the CPE After the identification code and the first parameter find the subscription information, the processor 403 searches the parameter mapping table for the APN corresponding to the first parameter according to the identification code and the first parameter, and then uses the parameter mapping table to map the CPE The first parameter sent is mapped to an APN parameter that can be recognized by the LTE network (for example, including eNB, HSS, MME, SGW, and PDN gateway), so that the CPE does not need to accept the APN parameter manually configured by the user before requesting to attach.

In order to better understand the above-mentioned embodiments, the interaction of the components included in the HSS and the data interaction mode in the HSS will be described below with a specific embodiment. Please refer to FIG. server, the home user server includes:

Receiver 501, data bus 502 for transmitting data, processor 503, transmitter 504, memory 505;

Wherein, the memory 505 stores the parameter mapping table and the subscription information, wherein the subscription information includes: the corresponding relationship between the identity code, the first parameter, the subscription service and the APN, and the parameter mapping table includes: the identity code, the first parameters, and the corresponding relationship between the APN.

It should be noted that the parameter mapping table in this embodiment is the same as the parameter mapping table in the foregoing method embodiments.

The receiver 501 receives the request for obtaining the subscription information of the CPE sent by the MME, wherein the request for the subscription information includes: the identity code of the CPE and the first parameter, and then the receiver 501 uses the data bus 502 to obtain the CPE identity The identification code and the first parameter are sent to the processor 503. Optionally, the identification code and the first parameter are obtained by the eNB from the attach request sent by the CPE and then sent to the MME.

The processor 503 receives the identity code and the first parameter of the CPE through the data bus 502, and searches for the subscription information according to the identity code and the first parameter, and the subscription information is: the correspondence between the user of the CPE and the subscription service relationship, the subscription service is the service provided by the SP corresponding to the first parameter. Optionally, after the user signs a contract with the operator, the subscription information between the user and the operator will be stored in the memory 505. In the subscription information Including: identification code, the first parameter, the corresponding relationship between the subscription service and APN, for example, the service provided by SP1 corresponding to the first parameter A of user A, the user A signed the contract with the operator to open the first The service provided by the SP1 corresponding to a parameter A is changed to the service provided by the SP2. At this time, the subscription information includes the identity code of the CPE of the user A, the first parameter A, the service corresponding to the first parameter A, and the service provided by the SP2 The corresponding APN, wherein the service corresponding to the first parameter A is provided by the SP2.

The SIM card is built into the CPE, and the identification code of the CPE can be IMSI. Of course, those skilled in the art can also customize the user identification code, which is not limited here. In this embodiment, the identification code is IMSI as an example for illustration.

When the processor 503 finds the subscription information, the processor 503 searches the parameter mapping table for the APN corresponding to the first parameter according to the identification code, and the first parameter and the APN have a corresponding relationship in the parameter mapping table, Optionally, the operator can set up a server to maintain the parameter mapping table, and the server can automatically update the APN parameters in the parameter mapping table by looking up the subscription information. Of course, the operator can also manually update the parameter mapping table according to the subscription information. There is no limitation here, and then the operator sends the updated parameter mapping table to the memory 505 for storage, and each time the user switches the SP, the operator needs to synchronously update the parameter mapping table in the memory 505, for example, Before user A signs a contract with the operator, the first parameter C of user A has not subscribed to any service. A service provided by SP3 corresponding to a parameter C, the operator configures an APN corresponding to the first parameter C in the parameter mapping table according to the IMSI of the CPE of the user A and the first parameter C, wherein the The APN corresponds to the SP3.

When the IP address of the CPE is allocated dynamically, the processor 503 configures the range of the IP address for the CPE according to the found APN and the identification code of the CPE, for example, the range of the IP address configured by the processor 503 for the user It is 192.168.1.*, the scope of this IP address can be selected according to different IP address pools, here is the prior art, do not go into details, then the processor 503 uses the APN, the IP address configured for this CPE The range and the ID code are sent to the transmitter 504 via the data bus 502 .

The transmitter 504 sends the APN, the range of the IP address and the identification code received through the data bus 502 to the PDN gateway selected by the MME via the MME. Optionally, the transmitter 504 first sends the APN of the CPE, The range of the IP address and the identification code are sent to the MME, and then the MME can select a PDN gateway, and the MME forwards the APN, the range of the IP address and the identification code of the CPE received from the transmitter 504 to the PDN gateway, making the PDN gateway configure an IP address for the CPE according to the IP address range, wherein the IP address belongs to the IP address range, and establishing a connection between the CPE and the PDN gateway according to the IP address, wherein the MME according to The APN, the identity code of the CPE, and the TAI of the CPE select the PDN gateway, and the process of selecting the PDN gateway by the MME is a prior art, and will not be repeated here.

It should be noted that when the IP address of the CPE is static, when the user of the CPE signs a contract with the operator, the operator will configure a fixed IP address for the CPE, add the IP address to the subscription information, and process The processor 503 only needs to search for the IP address in the subscription information according to the identity code of the CPE, and then the processor 503 updates the IP address in the parameter mapping table stored in the memory 505. Statically assigning an IP address, the IP address is sent to the CPE by the PDN gateway. Here, from the IP address configured for the CPE by the processor 503 of the HSS to the sending of the IP address to the CPE by the PDN gateway is a prior art. Do repeat.

In this embodiment, the receiver 501 receives the request sent by the MME for obtaining the subscription information of the CPE, the request for the subscription information includes: the identity code of the CPE and the first parameter, and the processor 503 performs the request according to the CPE After the subscription information is found by the ID code and the first parameter, the APN corresponding to the first parameter is searched in the parameter mapping table according to the ID code and the first parameter, and then the APN sent by the CPE is sent by the parameter mapping table. A parameter is mapped to an APN parameter that can be recognized by the LTE network (for example, including eNB, HSS, MME, SGW, and PDN gateway), so that the CPE does not need to accept the APN parameter manually configured by the user before requesting attachment, and when multiple CPEs send For the first parameter, the processor 503 may simultaneously search for the corresponding APN parameter in the parameter mapping table for the first parameter sent by each CPE, so that it is convenient for the CPE to search for the APN parameter corresponding to the SP when switching SPs in batches.

The home user server of the embodiment of the present invention for performing the method for obtaining the name of the access point is described below, and its basic logical structure refers to FIG. 6 , the home user server provided by another embodiment of the present invention, the home user Servers include:

A receiving unit 601 and a searching unit 602;

The receiving unit 601 is configured to receive the request sent by the MME for obtaining the subscription information of the CPE, where the request for the subscription information includes: the identity code and the first parameter of the CPE;

The search unit 602 is configured to search for subscription information according to the identity code and the first parameter, the subscription information is: the corresponding relationship between the user of the CPE and the subscription service, and the subscription service is the corresponding relationship between the user and the subscription service corresponding to the first parameter. Services provided by SP;

If the searching unit 602 finds the subscription information, the searching unit 602 is further configured to search the parameter mapping table for the APN corresponding to the first parameter according to the identification code.

In this embodiment, the receiving unit 601 receives the request sent by the MME for obtaining the subscription information of the CPE, the request for the subscription information includes: the identity code of the CPE and the first parameter, and the search unit 602 performs the request according to the CPE After the identification code and the first parameter find the subscription information, the search unit 602 searches the parameter mapping table for the APN corresponding to the first parameter according to the identification code and the first parameter, and then uses the parameter mapping table to assign the CPE The first parameter sent is mapped to an APN parameter that can be recognized by the LTE network (for example, including eNB, HSS, MME, SGW, and PDN gateway), so that the CPE does not need to accept the APN parameter manually configured by the user before requesting to attach.

In order to better understand the above-mentioned embodiment, a specific embodiment is used below to illustrate the data interaction mode in the HSS for each sub-unit included in the HSS and the interaction between the units. Please refer to FIG. 7, another implementation of the present invention The home user server provided by the example, the home user server includes:

Receiving unit 701, determining unit 702, searching unit 703, configuring unit 704, sending unit 705 and storing unit 706;

The determining unit 702 includes: a judging subunit 7021 and a determining subunit 7022;

The storage unit 706 stores the parameter mapping table and subscription information, wherein the subscription information includes: the identity code, the first parameter, the corresponding relationship between the subscription service and the APN, and the parameter mapping table includes: the identity code, the first parameter , and the corresponding relationship between the APNs.

It should be noted that the parameter mapping table in this embodiment is the same as the parameter mapping table in the foregoing method embodiments.

The receiving unit 701 may receive the request for acquiring the subscription information of the CPE sent by the MME, where the request for the subscription information includes the identity code and the first parameter of the CPE, and optionally, the identity code and the first parameter A parameter is obtained by the eNB from the attach request sent by the CPE, and sent to the MME, and then forwards the identity code of the CPE and the first parameter to the judging subunit 7021 .

The judging subunit 7021 judges whether the subscription information of the CPE is found in the storage unit 707 according to the identity code and the first parameter, and if it is judged that the subscription information is found, then the found subscription information, the CPE The identification code and the first parameter are sent to the determination subunit 7022, if it is judged that the subscription information is not found, the sending unit 705 is notified to send a message of rejecting attachment to the CPE via the MME, optionally, the user signs a contract with the operator Afterwards, the subscription information between the user and the operator will be stored in the HSS. For example, user A has opened the service provided by SP1 corresponding to the first parameter A, and user A signs up with the operator to correspond to the opened first parameter A. The service provided by SP1 is changed to the service provided by SP2. At this time, the subscription information includes the identity code of the CPE of the user A, the first parameter A, the service provided by SP2 corresponding to the first parameter A, and the The APN corresponding to SP2, wherein the identification code can be IMSI, of course, those skilled in the art can also customize the user identification code, which is not limited here.

The determination subunit 7022 determines that the user of the CPE has subscribed for a service corresponding to the first parameter, wherein the service is provided by the SP, and then sends the identity code, the subscription information and the first parameter of the CPE to the search unit 703. Optionally, the operator can allow the user to sign up for a specified number of SPs at the same time, then the number of the first parameter allocated to the user by the operator is the same as the number of SPs allowed to be signed by the user at the same time, and the operator can define it according to different levels of users The number of different SPs signed at the same time, the higher the level of the user, the more the number of different SPs that can be signed at the same time.

The search unit 703 acquires the parameter mapping table in the storage unit 706, and then the search unit 703 searches the parameter mapping table for the APN corresponding to the first parameter according to the identification code, and then uses the found APN, the identification code and the subscription information are sent to the configuration unit 704, in the parameter mapping table, the first parameter has a corresponding relationship with the APN, optionally, the operator can set a server to maintain the parameter mapping table, and the server can search subscription information to automatically update the APN parameters in the parameter mapping table, of course, the operator can also manually update the parameter mapping table according to the subscription information, which is not limited here, and then the operator sends the updated parameter mapping table to Store in the storage unit 706, every time the user switches SP, the operator needs to synchronously update the parameter mapping table in the storage unit 706, for example, before the user A signs a contract with the operator, the first parameter C of the user A has not opened any service, when the subscription information between the user A and the operator includes the IMSI of the CPE of the user A, the first parameter C, and the service provided by SP3 corresponding to the first parameter C, the operator The IMSI of the CPE and the first parameter C configure an APN corresponding to the first parameter C in a parameter mapping table, where the APN corresponds to the SP3.

When the IP address of the CPE is allocated dynamically, the configuration unit 704 can receive the APN and the identification code of the CPE sent by the search unit 703, and configure the range of IP addresses for the CPE according to the APN and the identification code , for example, the range of the IP address configured by the HSS for the user is 192.168.1.*, the range of the IP address can be selected according to different IP address pools, which is the prior art here, and will not be described in detail, and then the configuration unit 704 Send the APN, the range of the IP address configured for the CPE and the identification code to the sending unit 705 .

The sending unit 705 sends the received APN, the range of the IP address and the identification code to the PDN gateway selected by the MME via the MME. Optionally, the sending unit 705 first sends the APN of the CPE, the range of the IP address and the identification code are sent to the MME, and then the MME can select a PDN gateway, and the MME forwards the APN of the CPE, the range of the IP address and the identification code received from the sending unit 705 to the PDN gateway, making the PDN gateway configure an IP address for the CPE according to the IP address range, wherein the IP address belongs to the IP address range, and establishing a connection between the CPE and the PDN gateway according to the IP address, wherein the MME according to The process of selecting the PDN gateway by the APN, the identity code of the CPE, and the TAI of the CPE, and the selection of the PDN gateway by the MME is a prior art, and will not be described here.

In this embodiment, the receiving unit 701 receives the request for obtaining the subscription information of the CPE sent by the MME, the request for the subscription information includes: the identity code of the CPE and the first parameter, and the search unit 703 searches the CPE according to the CPE After the identification code and the first parameter find the subscription information, the search unit 703 searches the parameter mapping table for the APN corresponding to the first parameter according to the identification code and the first parameter, and then uses the parameter mapping table to assign the CPE The first parameter sent is mapped to the APN parameter that can be recognized by the LTE network (such as eNB, HSS, MME, SGW, PDN gateway), so that the CPE does not need to accept the APN parameter manually configured by the user before requesting attachment, and when multiple When the CPE sends the first parameter, the search unit 703 can search the corresponding APN parameter in the parameter mapping table for the first parameter sent by each CPE at the same time, so that it is convenient for the CPE to find the APN parameter corresponding to the SP when switching SPs in batches.

Please refer to FIG. 8, a system for obtaining access point names provided by an embodiment of the present invention, the system includes:

Mobility Management Entity 801 and Home Subscriber Server 802 .

The mobility management entity 801 is configured to send a request for obtaining the subscription information of the CPE to the HSS, where the request for the subscription information includes: the identity code and the first parameter of the CPE;

The home user server 802 is configured to search for subscription information according to the identity code and the first parameter, the subscription information is: the correspondence between the user of the CPE and the subscription service, and the subscription service is the corresponding relationship with the first parameter The service provided by the SP, and when the subscription information is found, the APN corresponding to the first parameter is searched in the parameter mapping table according to the identification code.

In this embodiment, HSS802 receives the request sent by MME801 for obtaining the subscription information of the CPE. The request for subscription information includes: the identity code and the first parameter of the CPE, and the HSS802 uses the identity code and the first parameter of the CPE to After the first parameter finds the subscription information, the HSS802 searches the parameter mapping table for the APN corresponding to the first parameter according to the identity code and the first parameter, and then maps the first parameter sent by the CPE through the parameter mapping table APN parameters that can be recognized by the LTE network (for example, including eNB, HSS, MME, SGW, and PDN gateway) can prevent the CPE from accepting the APN parameters manually configured by the user before requesting to attach.

For ease of understanding, the interaction between various network elements and devices in the system for obtaining the access point name will be described below with a specific embodiment, and the data interaction mode in the system for obtaining the access point name will be described. Please refer to FIG. 9, when the CPE When the IP address is allocated dynamically, another embodiment of the present invention provides a system for obtaining the name of the access point, which includes:

CPE901, MME902, HSS903 and PDN gateway 904.

The MME902 acquires the identity code and the first parameter in the attach request sent by the CPE901 to the eNB from the eNB.

MME902 sends a request for obtaining subscription information with the first parameter and the identity code of CPE901 to HSS903.

HSS903 searches for the subscription information according to the first parameter and the identity code of CPE901, wherein the subscription information is: the corresponding relationship between the CPE user and the subscription service, and the subscription service is provided by the SP corresponding to the first parameter service, the subscription information includes: the identity code of CPE901, the corresponding relationship between the first parameter and APN, and HSS903 will find the corresponding first parameter in the parameter mapping table stored in itself according to the identity code of CPE901. The APN, the IP address range configured for the CPE901 and the identity code are fed back to the MME902.

The MME902 forwards the identification code of the CPE901, the range of the IP address and the APN to the PDN gateway 904 selected by the MME902 according to the APN, the identification code of the CPE901 and the TAI of the CPE901.

The PDN gateway 904 sends to the CPE901 the IP address configured for the CPE901 according to the identity code of the CPE901, the range of the IP address and the APN, and establishes a connection with the CPE901 according to the IP address.

In this embodiment, HSS903 receives the request for obtaining subscription information of CPE901 sent by MME902, the request for subscription information includes: the identity code and the first parameter of the CPE901, and HSS903 according to the identity code and the first parameter of the CPE After the first parameter finds the subscription information, the HSS903 searches the parameter mapping table for the APN corresponding to the first parameter according to the identity code and the first parameter, and then uses the parameter mapping table to send the first parameter sent by the CPE901 Mapped to the APN parameters that can be recognized by the LTE network (e.g., including eNB, HSS, MME, SGW, PDN gateway), so that the CPE901 does not need to accept the APN parameters manually configured by the user before requesting attachment, and when multiple CPE901s send the first When parameterizing, the HSS903 can search the corresponding APN parameter in the parameter mapping table for the first parameter sent by each CPE901 at the same time, so that it is convenient for the CPE901 to search for the APN parameter corresponding to the SP when switching SPs in batches.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other media that can store program codes.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still understand the foregoing The technical solutions recorded in each embodiment are modified, or some of the technical features are replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (16)

1. it is a kind of obtain APN method, it is characterised in that include：

Home subscriber server HSS receives the CAMEL-Subscription-Information for obtaining ustomer premises access equipment CPE that mobile management entity MME sends Request, wherein, the request of the CAMEL-Subscription-Information includes：The identity code of the CPE and the first parameter；

The HSS searches the CAMEL-Subscription-Information according to the identity code and first parameter, and the CAMEL-Subscription-Information includes： Corresponding relation between the user of the CPE and signing service, the signing service is corresponding by industry with first parameter The business that business provider provides；

If the HSS finds the CAMEL-Subscription-Information, the HSS is searched according to the identity code in parameter mapping table APN APN corresponding with first parameter, the APN are used for the CPE and access what the service provider provided Business.

2. method according to claim 1, it is characterised in that the identity code and first parameter are by base station After obtaining in the attach request sent from the CPE, send to the MME's.

3. method according to claim 1, it is characterised in that the HSS is found after the APN, is also included：

The HSS is according to the scope that the APN and the identity code are the CPE configuring internets Protocol IP address；

The HSS sends the APN, the scope of the IP address and the identity code to the MME via the MME Selected packet data network PDN Gateway.

4. method according to claim 3, it is characterised in that also include：

The PDN Gateway is the CPE according to the scope of the identity code, the APN and the IP address for receiving Configuration IP address, the IP address belongs to the scope of the IP address；

The IP address is sent to the CPE by the PDN Gateway according to the identity code, and the IP address is used for described CPE sets up with the PDN Gateway and is connected.

5. method according to any one of claim 1 to 4, it is characterised in that the CAMEL-Subscription-Information also includes：The body Part identification code, first parameter, the corresponding relation between the signing service and the APN.

6. method according to any one of claim 1 to 4, it is characterised in that the parameter mapping table includes：The body Part identification code, the corresponding relation between first parameter and the APN.

7. method according to claim 1, it is characterised in that the parameter mapping table is stored by the HSS.

8. a kind of home subscriber server HSS, it is characterised in that the HSS includes：Receiver, for the data of transmission data Bus and processor；

The receiver is used to receive the CAMEL-Subscription-Information for obtaining ustomer premises access equipment CPE of mobile management entity MME transmission Request, wherein, the request of the CAMEL-Subscription-Information includes：The identity code of the CPE and the first parameter；

The processor is used to search the CAMEL-Subscription-Information, the signing letter according to the identity code and first parameter Breath includes：Corresponding relation between the user of the CPE and signing service, the signing service is corresponding with first parameter By service provider provide business；

The processor is additionally operable to when the CAMEL-Subscription-Information is found, and is looked in parameter mapping table according to the identity code Look for APN APN corresponding with first parameter.

9. HSS according to claim 8, it is characterised in that

It is the CPE configuring internets Protocol IP address that the processor is additionally operable to according to the APN and the identity code Scope；

The HSS also includes：

Transmitter, for the APN, the scope of the IP address and the identity code to be sent to institute via the MME State the selected packet data network PDN Gateway of MME.

10. HSS according to claim 8 or claim 9, it is characterised in that the HSS also includes：

Memory, for storing the CAMEL-Subscription-Information and the parameter mapping table, wherein the CAMEL-Subscription-Information also includes：The body Part identification code, first parameter, the corresponding relation between the signing service and the APN；The parameter mapping table includes： Corresponding relation between the identity code, first parameter and the APN.

11. a kind of systems for obtaining APN, it is characterised in that the system of the acquisition APN includes：

Mobile management entity MME, the request for sending for obtaining the CAMEL-Subscription-Information of ustomer premises access equipment CPE takes to home subscriber Business device HSS, wherein, the request of the CAMEL-Subscription-Information includes：The identity code of the CPE and the first parameter；

The HSS, for searching the CAMEL-Subscription-Information, the CAMEL-Subscription-Information according to the identity code and first parameter Including：Corresponding relation between the user of the CPE and signing service, the signing service is corresponding with first parameter The business provided by service provider, and when the CAMEL-Subscription-Information is found, mapped in parameter according to the identity code APN APN corresponding with first parameter is searched in table.

12. systems according to claim 11, it is characterised in that

The HSS is additionally operable to according to the model that the APN and the identity code are the CPE configuring internets Protocol IP address Enclose, and the APN, the scope of the IP address and the identity code are sent to the MME.

13. systems according to claim 12, it is characterised in that the system also includes：

Packet data network PDN Gateway, for receiving the APN, the scope of the IP address and the identity by the MME Identification code, and be that the CPE configures IP address according to the scope of the identity code, the APN and the IP address, wherein The IP address belongs to the scope of the IP address；

The PDN Gateway is additionally operable to that the IP address is sent to into the CPE according to the identity code, wherein IP ground Location is used for the CPE and is connected with PDN Gateway foundation.

14. systems according to claim 13, it is characterised in that

The PDN Gateway is additionally operable to be set up with the CPE according to the IP address and is connected.

15. systems according to claim 11, it is characterised in that the system also includes：

The MME, the identity code being additionally operable in obtaining the attach request that the CPE sends to the base station from base station With first parameter.

16. systems according to any one of claim 11 to 15, it is characterised in that the HSS is additionally operable to store the label About information and the parameter mapping table, wherein, the CAMEL-Subscription-Information also includes：The identity code, first parameter, institute The corresponding relation between signing service and the APN is stated, the parameter mapping table includes：The identity code, described first Corresponding relation between parameter and the APN.