Communication method, method for forwarding data message during the communication process and communication node thereof

Patent metadata

Field	Value
Publication number	US-9622072-B2
Application number	US-201013394972-A
Country	US
Kind code	B2
Filing date	Sep 14, 2010
Priority date	Sep 17, 2009
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

The present invention provides a communication method, and a method for forwarding a data message during the communication process and a communication node. Wherein, the configuration mode for identity recognition is clarified, and under the architecture based on access identifier and location separation in the network, a specific method for implementing identity recognition is provided, and the processing performed by each network element is regulated; the requirement for the number of the coding spaces is met, meanwhile the present invention realizes the intercommunication and interconnection with the legacy IP network, realizes the compatibility with the upper application programs of IPv4/IPv6, and supports the various application programs of the IPv4/IPv6 network to transplant smoothly to the architecture based on access identifier and location separation in the network.

First claim

What is claimed is:

1. A communication method applied to an access identifier and location separation network, comprising:
an access service node establishing, for each accessed terminal, a binding relationship between a first identifier of the terminal and a transmitting-receiving link; and
when receiving a data message sent from the terminal on the transmitting-receiving link, if a source address of the data message is a second identifier of the terminal, the access service node converting the source address to the first identifier of the terminal according to the binding relationship and then sending the data message to a backbone network for forwarding;
wherein the first identifier is an access identifier of the terminal, the second identifier is a private network IP address of the terminal, the access identifier of the terminal comprises the private network IP address of the terminal, and prefix/suffix information, the prefix/suffix information is a constant or variable determined based on the access identifier and location separation network.

2. The method according to claim 1 , wherein,
the access identifier of the terminal adopts an address coding format of IPV6.

3. The method according to claim 1 , wherein,
the transmitting-receiving link is a point-to-point connection relationship established by the access service node for the terminal.

4. The method according to claim 3 , wherein,
the point-to-point connection relationship is a General Packet Radio Service Tunneling Protocol (GTP) connection or a point-to-point protocol (PPP) connection.

5. A communication method applied to an access identifier and location separation network, comprising:
an access service node establishing and storing, for an accessed terminal, a corresponding relationship between a first identifier and a second identifier of the terminal, and a binding relationship between the first identifier and a transmitting-receiving link, wherein the transmitting-receiving link is a point-to-point connection relationship between the access service node and the terminal; and
when receiving a data message whose destination address is the first identifier of the terminal, the access service node converting the first identifier to the second identifier according to the corresponding relationship, and then inquiring the binding relationship through the first identifier of the terminal to obtain a corresponding point-to-point connection relationship, and sending the converted data message to the terminal through the corresponding point-to-point connection relationship.

6. The method according to claim 5 , wherein,
the first identifier is an access identifier of the terminal, and the second identifier is a private network IP address of the terminal.

7. The method according to claim 6 , wherein,
the access identifier of the terminal is composed of the private network IP address of the terminal and prefix/suffix information, and the prefix/suffix information is a constant or variable determined based on the access identifier and location separation network, and/or,
the access identifier of the terminal adopts an address coding format of IPV6.

8. The method according to claim 5 , wherein,
the transmitting-receiving link refers to a point-to-point connection relationship established by the access service node for the terminal, and the point-to-point connection relationship is a General Packet Radio Service Tunneling Protocol (GTP) connection or a point-to-point protocol (PPP) connection.

9. A communication method applied to an access identifier and location separation architecture network, comprising:
when an access service node to which a terminal accesses receives a data message sent from a correspondent node to the terminal, the access service node distributing a connection identifier to the correspondent node of the terminal according to an access identifier of the correspondent node in a source address of the data message, and storing a corresponding relationship between the connection identifier and the access identifier of the correspondent node; and
when the terminal communicates with the correspondent node through the connection identifier, the access service node to which the terminal accesses obtaining the access identifier of the correspondent node according to the corresponding relationship to determine the correspondent node, and realizing conversion between the access identifier of the correspondent node and the connection identifier.

10. The method according to claim 9 , wherein,
the connection identifier is a public network address or a private network address in a traditional communication network.

11. The method according to claim 9 , the method further comprising:
the access service node distributing the same or different connection identifiers to the correspondent nodes of different accessed terminals.

12. A communication method used for realizing intercommunication between an access identifier and location separation network and a legacy IP network, comprising:
when receiving a data message sent from the access identifier and location separation network to the legacy IP network, an intercommunication node converting a first identifier of the data message to a corresponding second identifier and then sending the data message to the legacy IP network;
when receiving a data message sent from the legacy IP network to the access identifier and location separation network, the intercommunication node converting the second identifier in the data message to the corresponding first identifier and then sending the data message to the access identifier and location separation network;
wherein the first identifier is an access identifier which is uniquely distributed to a terminal in the access identifier and location separation network, and the access identifier is used in an access network of the access identifier and location separation network and keeps unchanged during the movement process of the terminal;
the second identifier is an IP address.

13. The method according to claim 12 , wherein,
the access identifier is composed of a private network IP address of the terminal and prefix/suffix information;
the second identifier is a public network IP address.

14. A communication method used for realizing intercommunication between an access identifier and location separation network and a legacy IP network, comprising:
when a first terminal in the legacy IP network communicates with a second terminal in the access identifier and location separation network, an intercommunication node distributing to the second terminal a connection identifier identifiable to the first terminal and storing a corresponding relationship between the connection identifier and an access identifier of the second terminal, and when the first terminal communicates with the second terminal through the connection identifier, the intercommunication node obtaining the access identifier of the second terminal according to the corresponding relationship to determine the second terminal and realizing conversion between the access identifier and the connection identifier of the second terminal.

15. The method according to claim 14 , wherein,
the connection identifier is a public network IP address or a private network IP address in the legacy IP network.

16. The method according to claim 14 , wherein,
the intercommunication node distributes the same or different connection identifiers to the second terminals communicating with different first terminals.

17. A method for forwarding a data message during a comm

Assignees

• Wu Qiang
• Huang Bing
• Fu Tao
• Zte Corp

Inventors

• Wu Qiang
• Huang Bing
• Fu Tao

Classifications

• H04W8/26 Primary

  Network addressing or numbering for mobility support · CPC title

• H04W80/045

  involving different protocol versions, e.g. MIPv4 and MIPv6 · CPC title

• H04L61/103

  across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP] · CPC title

• H04L61/2084

  Electricity · mapped topic

• H04L61/6004

  Electricity · mapped topic