Address allocation method, apparatus, core network, node, network system and medium

1. An address allocation method, comprising:

in a case of establishing a session, configuring at least two uplink addresses and sending the at least two uplink addresses to an access network, wherein the access network is a connectivity network formed by a coupling of at least two network element nodes and part of the at least two uplink addresses are used for being allocated among the at least two network element nodes, wherein a mode of allocating an uplink address to a network element node includes: randomly selecting one uplink address from the at least two uplink addresses and performing allocation, or performing allocation according to an order in which the at least two uplink addresses are ranked; and

receiving at least one downlink address sent by the access network and determining usage of the at least two uplink addresses,

receiving release notification information, wherein the release notification information comprises: identification information of an uplink address allocated to the at least two network element nodes; and

releasing, according to the release notification information, an uplink address not allocated to the at least two network element nodes,

wherein the session is a splitting session and the session is configured on the at least two network element nodes;

wherein the determining the usage of the at least two uplink addresses further comprises determining the usage of the at least two uplink addresses according to a preset mapping relation between uplink addresses and downlink addresses.

2. The address allocation method of claim 1 , wherein receiving the at least one downlink address sent by the access network comprises:

receiving a downlink address sent by the access network and used by each network element node among the at least two network element nodes configured with the session.

3. A core network, comprising a processor, a memory and a communication bus, wherein

the communication bus is configured to implement connection and communication between the processor and the memory; and

an address allocation program is stored in the memory and the processor is configured to execute the address allocation program stored in the memory to perform the steps of the address allocation method of claim 2 .

4. The address allocation method of claim 1 , wherein the at least two network element nodes comprise at least one master node and a network element node, except for the at least one master node, wherein the network element node is a secondary node; and

wherein the at least two network element nodes configured with the session comprise one master node and at least one secondary node.

5. The address allocation method of claim 1 , wherein the at least two network element nodes comprise at least one master node and a network element node, except for the at least one master node, wherein the network element node is a secondary node;

wherein sending the at least two uplink addresses to the access network comprises: sending the at least two uplink addresses to the at least one master node; and

wherein receiving the downlink address sent by the access network comprises: receiving the downlink address sent by the at least one master node.

6. The address allocation method of claim 1 , further comprising determining a correspondence between a used uplink address and the downlink address.

7. A core network, comprising a processor, a memory and a communication bus, wherein

the communication bus is configured to implement connection and communication between the processor and the memory; and

an address allocation program is stored in the memory and the processor is configured to execute the address allocation program stored in the memory to perform the steps of the address allocation method of claim 1 .

8. An address allocation method, comprising:

in a case of establishing a session, receiving at least two uplink addresses sent by a core network;

performing, according to part of the at least two uplink addresses, uplink-address allocation among a plurality of network element nodes composing an access network, wherein the access network is a connectivity network formed by a coupling of at least two network element nodes, and wherein the uplink-address allocation includes: randomly selecting one uplink address from the at least two uplink addresses and performing allocation, or performing allocation according to an order in which the at least two uplink addresses are ranked; and

sending at least one downlink address to the core network, and determining usage of the at least two uplink addresses,

sending release notification information, wherein the release notification information comprises identification information of an uplink address allocated to the at least two network element nodes, for the core network to release, according to the release notification information, an uplink address not allocated to the at least two network element nodes;

wherein the session is a splitting session and the session is configured on the at least two network element nodes;

wherein the determining the usage of the at least two uplink addresses further comprises determining the usage of the at least two uplink addresses according to a preset mapping relation between uplink addresses and downlink addresses.

9. The address allocation method of claim 8 , wherein performing, according to the at least two uplink addresses, the uplink-address allocation among the plurality of network element nodes composing the access network comprises:

allocating one of the at least two uplink addresses to each network element node among the at least two network element nodes configured with the session.

10. The address allocation method of claim 9 , wherein the at least two network element nodes comprise at least one master node and a network element node, except for the at least one master node, wherein the network element node is a secondary node; and

the at least two network element nodes configured with the session comprise one master node and at least one secondary node.

11. A network element node, comprising a processor, a memory and a communication bus, wherein

the communication bus is configured to implement connection and communication between the processor and the memory; and

an address allocation program is stored in the memory and the processor is configured to execute the address allocation program stored in the memory to perform the steps of the address allocation method of claim 9 .

12. The address allocation method of claim 8 , wherein the at least two network element nodes comprise at least one master node and a network element node, except for the at least one master node, wherein the network element node is a secondary node;

wherein receiving the at least two uplink addresses sent by the core network comprises: receiving, by the at least one master node, the at least two uplink addresses sent by the core network; and

wherein sending the downlink address to the core network comprises: sending, by the at least one master node, the downlink address to the core network.

13. The address allocation method of claim 8 , further comprising determining a correspondence between a used uplink address and the downlink address.

14. A network element node, comprising a processor, a memory and a communication bus, wherein

the communication bus is configured to implement connection and communication between the processor and the memory; and

an address allocation program is stored in the memory and the processor is configured to execute the address allocation program stored in the memory to perform the steps of the address allocation method of claim 8 .