Method for accessing mobile core network by using fixed access device

An apparatus for accessing a mobile core network, wherein the apparatus comprises:

• at least one processor;
• and
• one or more memories coupled to the at least one processor and storing executable program instructions that, when executed by the at least one processor, cause the at least one processor to:
• receive a network registration request sent by customer-premises equipment (CPE), wherein the CPE registers with a fixed access device on a physical layer and a line layer;
• send a network registration request message for the CPE to a mobile core network based on the network registration request, wherein the network registration request message comprises a user identifier of the CPE;
• receive an authentication request message sent by the mobile core network for the CPE, wherein the authentication request message comprises an authentication parameter and a physical location identifier of the CPE that are obtained by the mobile core network from a user data server based on the user identifier of the CPE;
• perform physical location authentication for the CPE based on the physical location identifier;
• in response to determining that the physical location authentication succeeds, send an authentication response to the mobile core network, wherein the authentication response is obtained through calculation based on the authentication parameter and key information of the CPE;
• receive a registration success message sent by the mobile core network, wherein the registration success message comprises a service parameter that is allocated to the CPE by the mobile core network based on the authentication response after authentication for the CPE succeeds;
• notify, based on the registration success message, the CPE that network registration succeeds;
• and
• send the service parameter to the CPE.

A non-transitory computer-readable storage medium storing a program, wherein the program comprises instructions, and when the instructions are executed by a computer, cause the computer to perform operations comprising:

• receiving, by a fixed access device, a network registration request sent by customer-premises equipment (CPE), wherein the CPE registers with the fixed access device on a physical layer and a line layer;
• sending, by the fixed access device, a network registration request message for the CPE to a mobile core network based on the network registration request, wherein the network registration request message comprises a user identifier of the CPE;
• receiving, by the fixed access device, an authentication request message sent by the mobile core network for the CPE, wherein the authentication request message comprises an authentication parameter and a physical location identifier of the CPE that are obtained by the mobile core network from a user data server based on the user identifier of the CPE;
• performing, by the fixed access device, physical location authentication for the CPE based on the physical location identifier;
• in response to determining that the physical location authentication succeeds, sending, by the fixed access device, an authentication response to the mobile core network, wherein the authentication response is obtained through calculation based on the authentication parameter and key information of the CPE;
• receiving, by the fixed access device, a registration success message sent by the mobile core network, wherein the registration success message comprises a service parameter that is allocated to the CPE by the mobile core network based on the authentication response after authentication for the CPE succeeds;
• notifying, by the fixed access device based on the registration success message, the CPE that network registration succeeds;
• and sending the service parameter to the CPE.

A method for accessing a mobile core network, comprising:

• generating, by customer-premises equipment (CPE), a network registration request message, wherein the network registration request message is used to apply for accessing a mobile core network by the CPE, and the network registration request message comprises a user identifier of the CPE;
• encapsulating, by the CPE, the network registration request message into a link layer protocol of a fixed access network to generate a first user-side signaling packet;
• sending, by the CPE, the first user-side signaling packet to a fixed access device, wherein the fixed access device forwards the network registration request message to the mobile core network, wherein the CPE registers with the fixed access device on a physical layer and a line layer;
• receiving, by the CPE, a second user-side signaling packet sent by the fixed access device, wherein the second user-side signaling packet is generated by encapsulating, by the fixed access device, an authentication parameter into the link layer protocol of the fixed access network, and the authentication parameter is obtained by the mobile core network from a user data server based on the user identifier of the CPE;
• obtaining, through calculation by the CPE, an authentication response based on the authentication parameter in the second user-side signaling packet and key information of the CPE;
• encapsulating, by the CPE, the authentication response into the link layer protocol of the fixed access network to generate a fourth user-side signaling packet;
• sending, by the CPE, the fourth user-side signaling packet to the fixed access device, wherein the fixed access device forwards the authentication response to the mobile core network;
• and
• receiving, by the CPE, a fifth user-side signaling packet sent by the fixed access device, wherein the fifth user-side signaling packet comprises a service parameter that is allocated to the CPE by the mobile core network based on the authentication response after authentication for the CPE succeeds.