Terminal-to-terminal communication connection control method using IP transfer network

• US 8,121,113 B2
• Filed: 08/09/2007
• Issued: 02/21/2012
• Est. Priority Date: 04/06/2000
• Status: Expired due to Fees

• Current Assignee: The Distribution Systems Research Institute (GS1 AISBL)
• Original Assignee: The Distribution Systems Research Institute (GS1 AISBL), Miyaguchi Research Co., Ltd.
• Inventors: Furukawa, Hisao, Miyaguchi, Shoji
• Primary Examiner(s): LEVITAN, DMITRY
• Application Number:
  US11/891,608
• Publication Number:
  US 20080056288A1
• Time in Patent Office: 1,657 Days
• Field of Search: 370/352, 370/389, 370/400, 370/401, 370/522, 709/227, 709/228, 709/245, 709/246, 709/249
• US Class Current: 370/352
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 2101/668 Internet protocol [IP] address subnets
• CPC Class Codes: H04L 61/2514 between local and global IP addresses
• CPC Class Codes: H04L 61/2517 using port numbers
• CPC Class Codes: H04L 61/2535 Multiple local networks, e.g. resolving potential IP address conflicts
• CPC Class Codes: H04L 61/255 Maintenance or indexing of mapping tables
• CPC Class Codes: H04L 61/2564 for a higher-layer protocol, e.g. for session initiation protocol [SIP]
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 61/4557 Directories for hybrid networks, e.g. including telephone numbers
• CPC Class Codes: H04L 63/0236 Filtering by address, protocol, port number or service, e.g. IP-address or URL
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 65/1043 Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42

Abstract

Both a connection server and a relay connection server are installed in an IP transfer network; a function similar to a line connection control of a subscriber exchanger is applied to a connection server; a function similar to a line connection control of a relay exchanger is applied to the relay connection server; and a terminal-to-terminal communication connection control method with using the IP transfer network is realized in such a manner that a telephone set and a terminal such as an IP terminal and a video terminal transmit/receive an initial address message, an address completion message, a call pass message, a response message, a release message and a release completion message, which can be made in a 1-to-1 correspondence relationship with line connection control messages of the common line signal system. Furthermore, while an address administration table is set to a network node apparatus of an IP transfer network, means for registering addresses of the terminals into this address administration table is employed, so that an IP packet communication by a multicast manner can be realized with improving information security performance.

Claims

1. A communication system, wherein:

said communication system includes a first IP communication network, and said first IP communication network includes plural servers, plural network node apparatuses and a domain name server,

a communication between said network node apparatus and a terminal which is outside of said first IP communication network and is connected to said network node apparatus, is carried out by using an external IP packet, and a communication inside of said first IP communication network is carried out by using an internal packet being IP encapsulated,

said first IP communication network is connected to a second IP communication network via a first gateway,

a terminal T1 is connected to a network node apparatus N1, and a terminal T2 is connected to said second IP communication network,

said terminal T1 sends a telephone number or host name of said terminal T2 and a connection request to a server S1, said server S1 sends said telephone number or host name to said domain name server,

based on said telephone number or host name, said domain name server finds an IP address of said first gateway to communicate with said terminal T2 and said domain name server replies said IP address to said server S1,

based on said connection request, said server S1 sends a message to said first gateway discriminated by said IP address, and

said network node apparatus N1 receives said external IP packet including voice or data from said terminal T1, said network node apparatus N1 converts said external IP packet into said internal packet including said external IP packet and sends said internal packet to said first gateway, and said first gateway sends said voice or data to said terminal T2 via said second IP communication network.

2. A communication system according to claim 1, wherein:

said terminal T1 communicates with said network node apparatus N1 via a wireless communication path and further communicates with said terminal T2 via said first gateway and said second IP communication network.

3. A communication system according to claim 1, wherein:

a communication interface between said terminal T1 and said server S1 is UNI (User Network Interface), and a communication interface between said servers S1 and said first gateway is NNI (Network Network Interface).

4. A communication system according to claim 1, wherein:

based on said telephone number or host name and said connection request, a communication path in which said internal packet is transferred, is set between said network node apparatus N1 and said first gateway.

5. A communication system, wherein:

said communication system includes a first IP communication network, and said first IP communication network includes plural servers, plural network node apparatuses and a domain name server,

said first IP communication network is connected to a second IP communication network via a first gateway,

a terminal T1 is connected to a network node apparatus N1, and a terminal T2 is connected to said second IP communication network,

said terminal T1 sends a telephone number or host name of said terminal T2 and a connection request to a server S1, said server S1 sends said telephone number or host name to said domain name server,

based on said telephone number or host name, said domain name server finds an IP address of said first gateway to communicate with said terminal T2 and said domain name server replies said IP address to said server S1,

based on said connection request, said server S1 sends a message to said first gateway discriminated by said IP address, and

said network node apparatus N1 receives voice or data from said terminal T1, and said network node apparatus N1 sends said voice or data to said terminal T2 via said first gateway and said second IP communication network.

6. A communication system according to claim 5, wherein:

said terminal T1 communicates with said network node apparatus N1 via a wireless communication path and further communicates with said terminal T2 via said first gateway.

7. A communication system according to claim 5, wherein:

said terminal T1 communicates with said network node apparatus N1 via a wireless communication path and further communicates with said terminal T2 via said first gateway.

8. A communication system according to claim 5, wherein:

a communication interface between said terminal T1 and said server S1 is UNI (User Network Interface), and a communication interface between said servers S1 and said first gateway is NNI (Network Network Interface).