Method and system of call routing depending on caller location in mobile IP network

• US 7,899,465 B1
• Filed: 12/07/1999
• Issued: 03/01/2011
• Est. Priority Date: 12/07/1999
• Status: Expired due to Fees

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Veikkolainen, Simo, Ivanov, Nedko
• Primary Examiner(s): Tran; CongVan
• Application Number:
  US10/148,775
• Time in Patent Office: 4,102 Days
• Field of Search: 455/428, 455/432.3, 455/445, 455/456.1, 455/456, 455/403, 455/414.1, 455/418, 455/422.1, 455/424, 4554041- 2, 370/395.52, 370351-360
• US Class Current: 455/456.1
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/35 involving non-standard use of addresses for implementing network functionalities, e.g. coding subscription information within the address or functional addressing, i.e. assigning an address to a function
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1106 Call signalling protocols; H.323 and related
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/50 for emergency connections
• CPC Class Codes: H04W 8/085 involving hierarchical organized mobility servers, e.g. hierarchical mobile IP [HMIP]
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 92/02 Inter-networking arrangements

Abstract

The present invention discloses a system and a method for performing routing using location information of an IP terminal in a mobile IP telephony network. When a call is originated from an IP terminal to another subscriber it is checked whether location information of the IP terminal is required for the call. In case location information is required, the location information is added to the call setup data. Then, a destination address is determined on the basis of the call setup data and the location information. Finally, the call is routed to the determined destination address.

Claims

1. A method comprising:

checking by an IP terminal, when a call is originated from the IP terminal to another subscriber through an IP telephony mobile network, whether location information of the IP terminal is required for a call setup;

adding, by the IP terminal, the location information of the IP terminal to call setup data of the call when the IP terminal determines that the location information of the IP terminal is required;

determining, in the IP telephony mobile network, a destination address based on the call setup data and the location information received from the IP terminal; and

routing the call to the determined destination address in the IP telephony mobile network.

2. The method of claim 1, wherein the IP terminal is a subscriber of the IP telephony mobile network and comprises a mobile terminal device.

3. The method according to claim 2, wherein the location information is provided by a communication between a call control application in the IP terminal and the mobile terminal device.

4. A method comprising:

checking whether location information of an IP terminal is required for a call setup when the call to another subscriber originates from the IP terminal;

adding the location information of the IP terminal to call setup data when required;

mapping a special service number or alias to a destination address based on the location information of the IP terminal; and

routing the call to the destination address;

wherein the call is directed to the special service number requiring the location information of the IP terminal.

5. A system comprising:

an IP terminal configured to originate a call to another subscriber through an IP telephony mobile network; and

a control unit in the IP telephony mobile network for receiving the call which originated from the IP terminal and for routing the call to a destination address;

wherein the IP terminal checks whether location information of the IP terminal is required for a call setup and adds the location information of the IP terminal to call setup data of the call when the IP terminal determines that the location information is required; and

wherein the control unit determines a destination address based on the call setup data and the location information received from the IP terminal and routes the call to the determined destination address.

6. The system of claim 5, wherein the IP terminal is a subscriber of the IP telephony mobile network and comprises a mobile terminal device.

7. The system according to claim 6, wherein the location information is provided by a communication between a call control application in the IP terminal and the mobile terminal device.

8. A system comprising:

an IP terminal adapted to originate a call to another subscriber; and

a control unit for receiving the call which originated from the IP terminal and for routing the call to a destination address;

wherein the IP terminal checks whether location information of the IP terminal is required for a call setup and adds the location information of the IP terminal to call setup data when required;

wherein the control unit determines a destination address based on the call setup data and the location information of the IP terminal, routes the call to the determined destination address, and determines the destination address by mapping a special service number or alias to the destination address based on the location information of the IP terminal; and

wherein the call originated from the IP terminal is directed to the special service number requiring the location information of the IP terminal.

9. An apparatus configured to originate a call from the apparatus to another subscriber through an IP telephony mobile network, the apparatus being configured to:

check, when the call is originated from the apparatus to the other subscriber through the IP telephony mobile network, whether location information of the apparatus is required for a call setup; and

add the location information of the apparatus to setup data of the call when the apparatus determines that the location information is required.

10. The apparatus of claim 9, wherein the apparatus is a subscriber of the IP telephony mobile network and comprises a mobile terminal device.

11. The apparatus of claim 10, wherein the location information of the apparatus is provided by a communication between a call control application in the apparatus and the mobile terminal device.

12. An apparatus configured to:

receive a call originated from an IP terminal to another subscriber through an IP telephony mobile network together with location information of the IP terminal added to call setup data of the call;

determine a destination address based on the call setup data and the location information received from the IP terminal; and

route the call to the determined destination address in the IP telephony mobile network.

13. The apparatus according claim 12, further configured to:

determine the destination address by mapping a special service number or alias to the destination address based on the location information.

14. The apparatus according to claim 12, further configured to:

send the call setup data with the destination address.

15. A method comprising:

originating a call from an apparatus to another subscriber through an IP telephony mobile network;

checking, when originating the call from the apparatus to the other subscriber through the IP telephony mobile network, whether location information of the apparatus is required for a call setup; and

adding the location information of the apparatus to call setup data of the call when it is determined that the location information is required.

16. The method of claim 15, wherein the apparatus is a subscriber of the IP telephony mobile network and comprises a mobile terminal device.

17. The method of claim 16, further comprising:

providing the location information by a communication between a call control application in the apparatus and the mobile terminal device.

18. A method comprising:

receiving a call originated from an IP terminal to another subscriber through an IP telephony mobile network together with location information of the IP terminal added to call setup data of the call;

determining a destination address based on the call setup data and the location information received from the IP terminal; and

routing the call to the determined destination address in the IP telephony mobile network.

19. The method according to claim 18, comprising:

determining the destination address by mapping a special service number or alias to the destination address based on the location information.

20. The method according to claim 18, comprising:

sending the call setup data with the destination address when determining the destination address.