CN-122001853-A - IP address deployment method, device, apparatus and storage medium

Abstract

The present disclosure provides a method, an apparatus, a device and a storage medium for deploying an IP address, which are used for solving the problem of maintaining a fixed IP address when a CPE migrates between different core networks, and the method includes receiving an access request for a target core network sent by a customer premise equipment CPE; the method comprises the steps of carrying a target global user identifier of a CPE in an access request, determining a target IP address corresponding to the target global user identifier, wherein the target IP addresses corresponding to the target global user identifier under different core networks are the same, sending a first route update instruction carrying the target IP address to a user plane function UPF node of the target core network, and the first route update instruction is used for indicating the UPF node to issue route information containing the target IP address to a whole network router through a data center switch of the target core network.

Inventors

• CHEN HUI
• SHU CHENGSONG

Assignees

• 中信科移动通信技术股份有限公司

Dates

Publication Date

20260508

Application Date

20241105

Claims (20)

1. 1. An IP address deployment method, applied to a session management function SMF node, the method comprising: Receiving an access request for a target core network sent by Customer Premise Equipment (CPE), wherein the access request carries a target global user identifier of the CPE; Determining a target IP address corresponding to the target global user identifier, wherein the target IP addresses corresponding to the target global user identifiers under different core networks are the same; And sending a first route update instruction carrying the target IP address to a user plane function UPF node of the target core network, wherein the first route update instruction is used for indicating the UPF node to issue route information containing the target IP address to a full network router through a data center switch of the target core network.
2. 2. The method of claim 1, wherein the determining the target IP address corresponding to the target global user identifier comprises: And acquiring a target IP address allocated to the CPE when the CPE is accessed to other core networks before accessing to the target core network.
3. 3. The method according to claim 1 or 2, wherein the target IP address is an unassigned IP address selected from a segment of IP addresses bound to the target global user identifier, the segment of IP addresses containing at least one IP address, the segment of IP addresses bound to the target global user identifier being determined based on a binding relationship of each global user identifier to an IP address.
4. 4. The method according to claim 1, wherein the method further comprises: receiving a de-registration request sent by the CPE, wherein the de-registration request comprises a target global user identifier of the CPE; Determining a target IP address corresponding to the target global user identifier; And sending a second route update instruction carrying the target IP address to the UPF node, wherein the second route update instruction is used for indicating the UPF node to delete the route information containing the target IP address by informing the whole network router through a data center switch of the target core network.
5. 5. An IP address deployment method, applied to a user plane function UPF node of a target core network, the method comprising: Receiving a first route update instruction sent by a Session Management Function (SMF) node, wherein the first route update instruction carries a target IP address corresponding to a target global user identifier of Customer Premise Equipment (CPE); and sending a third route update instruction carrying the target IP address to a data center switch of the target core network, wherein the third route update instruction is used for indicating the data center switch to issue route information containing the target IP address to a whole network router.
6. 6. The method of claim 5, wherein the third routing update command further carries an interface IP address of the UPF node, and wherein the interface IP address is used for forwarding the data packet to the UPF node after the data center switch receives the data packet sent to the destination IP address by the full network router.
7. 7. The method of claim 5, wherein the method further comprises: receiving a second route update instruction sent by the SMF node, wherein the second route update instruction carries the target IP address; And sending a fourth route update instruction carrying the target IP address to the data center switch, wherein the fourth route update instruction is used for instructing the data center switch to notify the whole network router to delete the route information containing the target IP address.
8. 8. The method of claim 6, wherein the method further comprises: Receiving a data packet which is forwarded by the data center switch based on the interface IP address and is sent to the CPE, wherein the data packet carries the target IP address; determining a transmission path corresponding to the data packet based on the target IP address, wherein the transmission path comprises a base station where the CPE is located; and forwarding the data packet to the base station according to the transmission path so as to transmit the data packet to the CPE through the base station.
9. 9. An IP address deployment method, applied to a data center switch of a target core network, the method comprising: Receiving a third route update instruction sent by a user plane function UPF node of the target core network, wherein the third route update instruction carries a target IP address determined by a session management function SMF node for a target global user identifier of customer premise equipment CPE; and distributing the routing information containing the target IP address to the whole network router.
10. 10. The method according to claim 9, wherein the method further comprises: receiving a fourth route update instruction carrying the target IP address sent by the UPF; the advertising full network router deletes the routing information containing the target IP address.
11. 11. The method of claim 9, wherein said publishing routing information containing said target IP address to an all-network router comprises: And based on a dynamic routing protocol, the routing information containing the target IP address is published to the whole network router.
12. 12. The IP address deployment device is characterized by being deployed at a Session Management Function (SMF) node and comprising a memory, a transceiver and a processor; The memory is used for storing a computer program, the transceiver is used for receiving and transmitting data under the control of the processor, and the processor is used for reading the computer program in the memory and executing the following steps: Receiving an access request for a target core network sent by Customer Premise Equipment (CPE), wherein the access request carries a target global user identifier of the CPE; Determining a target IP address corresponding to the target global user identifier, wherein the target IP addresses corresponding to the target global user identifiers under different core networks are the same; And sending a first route update instruction carrying the target IP address to a user plane function UPF node of the target core network, wherein the first route update instruction is used for indicating the UPF node to issue route information containing the target IP address to a full network router through a data center switch of the target core network.
13. 13. The apparatus of claim 12, wherein said determining a target IP address corresponding to said target global user identifier comprises: And acquiring a target IP address allocated to the CPE when the CPE is accessed to other core networks before accessing to the target core network.
14. 14. The apparatus according to claim 12 or 13, wherein the target IP address is an unassigned IP address selected from a segment of IP addresses bound to the target global user identifier, the segment of IP addresses containing at least one IP address, the segment of IP addresses bound to the target global user identifier being determined based on a binding relationship of each global user identifier to an IP address.
15. 15. The apparatus of claim 12, wherein the processor is further configured to perform: receiving a de-registration request sent by the CPE, wherein the de-registration request comprises a target global user identifier of the CPE; Determining a target IP address corresponding to the target global user identifier; And sending a second route update instruction carrying the target IP address to the UPF node, wherein the second route update instruction is used for indicating the UPF node to delete the route information containing the target IP address by informing the whole network router through a data center switch of the target core network.
16. 16. An IP address deployment apparatus, wherein a user plane function UPF node deployed in a target core network includes a memory, a transceiver, and a processor; The memory is used for storing a computer program, the transceiver is used for receiving and transmitting data under the control of the processor, and the processor is used for reading the computer program in the memory and executing the following steps: Receiving a first route update instruction sent by a Session Management Function (SMF) node, wherein the first route update instruction carries a target IP address corresponding to a target global user identifier of Customer Premise Equipment (CPE); and sending a third route update instruction carrying the target IP address to a data center switch of the target core network, wherein the third route update instruction is used for indicating the data center switch to issue route information containing the target IP address to a whole network router.
17. 17. The apparatus of claim 16 wherein the third routing update command further carries an interface IP address of the UPF node, the interface IP address being used by the data center switch to forward the data packet to the UPF node after receiving the data packet sent by the full network router to the destination IP address.
18. 18. The apparatus of claim 16, wherein the processor is further configured to perform: receiving a second route update instruction sent by the SMF node, wherein the second route update instruction carries the target IP address; And sending a fourth route update instruction carrying the target IP address to the data center switch, wherein the fourth route update instruction is used for instructing the data center switch to notify the whole network router to delete the route information containing the target IP address.
19. 19. The apparatus of claim 17, wherein the processor is further configured to perform: Receiving a data packet which is forwarded by the data center switch based on the interface IP address and is sent to the CPE, wherein the data packet carries the target IP address; determining a transmission path corresponding to the data packet based on the target IP address, wherein the transmission path comprises a base station where the CPE is located; and forwarding the data packet to the base station according to the transmission path so as to transmit the data packet to the CPE through the base station.
20. 20. The IP address deployment device is characterized by being deployed in a data center switch of a target core network and comprising a memory, a transceiver and a processor; The memory is used for storing a computer program, the transceiver is used for receiving and transmitting data under the control of the processor, and the processor is used for reading the computer program in the memory and executing the following steps: Receiving a third route update instruction sent by a user plane function UPF node of the target core network, wherein the third route update instruction carries a target IP address determined by a session management function SMF node for a target global user identifier of customer premise equipment CPE; and distributing the routing information containing the target IP address to the whole network router.

Description

IP address deployment method, device, apparatus and storage medium Technical Field The present disclosure relates to the field of communications, and in particular, to an IP address deployment method, apparatus, device, and storage medium. Background With the development of the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G), the 5G core network serves as a core part of the 5G network and bears key tasks such as user access, session management, data transmission and the like. Generally, after the customer premises equipment (Customer Premise Equipment, CPE) has access to the core network, the core network may assign an IP address to the CPE. In the mobile process, the CPE needs to migrate between different core networks, and the IP addresses allocated by the different core networks to the CPE are often different, so it is particularly important for some CPEs that need a fixed IP address to continuously acquire the fixed IP address when crossing multiple core networks. Disclosure of Invention The embodiment of the disclosure at least provides an IP address deployment method, equipment, device and storage medium, which are used for solving the problem of maintaining a fixed IP address when CPE migrates between different core networks. In a first aspect, an embodiment of the present disclosure provides an IP address deployment method, applied to a session management function SMF node, including: Receiving an access request for a target core network sent by Customer Premise Equipment (CPE), wherein the access request carries a target global user identifier of the CPE; determining a target IP address corresponding to the target global user identifier, wherein the target IP addresses corresponding to the target global user identifier under different core networks are the same; and sending a first route update instruction carrying the target IP address to a user plane function UPF node of the target core network, wherein the first route update instruction is used for indicating the UPF node to issue route information containing the target IP address to the whole network router through a data center switch of the target core network. In a possible implementation manner, determining the target IP address corresponding to the target global user identifier includes: and acquiring a target IP address allocated to the CPE when the CPE is accessed to other core networks before accessing to the target core network. In a possible implementation, the target IP address is an unassigned IP address selected from a segment of IP addresses bound to the target global user identifier, the segment of IP addresses containing at least one IP address, the segment of IP addresses bound to the target global user identifier being determined based on a binding relationship of each global user identifier to the IP address. In a possible embodiment, the method further comprises: receiving a de-registration request sent by the CPE, wherein the de-registration request comprises a target global user identifier of the CPE; Determining a target IP address corresponding to the target global user identifier; And sending a second route update instruction carrying the target IP address to the UPF node, wherein the second route update instruction is used for indicating the UPF node to delete the route information containing the target IP address by informing the router of the whole network through the data center switch of the target core network. In a second aspect, an embodiment of the present disclosure provides an IP address deployment method, applied to a user plane function UPF node of a target core network, including: Receiving a first route update instruction sent by a Session Management Function (SMF) node, wherein the first route update instruction carries a target IP address corresponding to a target global user identifier of Customer Premise Equipment (CPE); And sending a third route update instruction carrying the target IP address to the data center switch of the target core network, wherein the third route update instruction is used for indicating the data center switch to issue the route information containing the target IP address to the whole network router. In one possible implementation manner, the third route update instruction also carries an interface IP address of the UPF node, and the interface IP address is used for forwarding the data packet to the UPF node after the data center switch receives the data packet sent to the target IP address by the full network router. In a possible embodiment, the method further comprises: receiving a second route update instruction sent by the SMF node, wherein the second route update instruction carries a target IP address; And sending a fourth route update instruction carrying the target IP address to the data center switch, wherein the fourth route update instruction is used for instructing the data center switch to notify the whole ne