Mobile internet access

• US 6,804,720 B1
• Filed: 06/07/2000
• Issued: 10/12/2004
• Est. Priority Date: 06/07/2000
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Vilander, Harri Tapani, Jokela, Petri Aulis, Vuopionpera, Raimo
• Primary Examiner(s): Wiley, David
• Assistant Examiner(s): Nguyen, Phuoc H
• Application Number:
  US09/588,603
• Time in Patent Office: 1,588 Days
• Field of Search: 709/205, 709/217, 709/218, 709/245, 709/229, 370/352, 370/329, 370/546, 370/356, 370/401, 370/389, 370/338, 379/111
• US Class Current: 709/229
• CPC Class Codes: G06Q 20/06 Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
• CPC Class Codes: G06Q 20/10 specially adapted for electronic funds transfer [EFT] systems; specially adapted for home banking systems
• CPC Class Codes: G06Q 20/322 Aspects of commerce using mobile devices [M-devices]
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 17/00 Prepayment of wireline communication systems, wireless communication systems or telephone systems using a coded card to authorise calls from a telephone set H04M1/675
• CPC Class Codes: H04M 2215/2026 Wireless network, e.g. GSM, PCS, TACS
• CPC Class Codes: H04M 2215/2033 WLAN
• CPC Class Codes: H04M 2215/32 Involving wireless systems
• CPC Class Codes: H04W 4/24 Accounting or billing
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 8/06 Registration at serving network Location Register, VLR or user mobility server
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

A method of authorizing an Internet Protocol (IP) enabled mobile host 1 to access the Internet 2 via an wireless LAN, GSM, UMTS access network 3 comprises initially sending an IP access request from the mobile host 1 to an IP router 5 within the access network 3. In response to receipt of said access request at the IP router 5, an IP address routing prefix is sent from the IP router 5 to the mobile host 1. Electronic cash is then forwarded from the mobile host 1 to a control point 6 within the access network 3. The control point 6 confirms the authenticity and/or sufficiency of the electronic cash and, providing that confirmation is made, sends an authorization message to the IP router 5. The IP router 5 blocks the transmission of IP packets between the mobile host 1 and the Internet 2 prior to receipt of the authorization message and permits the passage of IP packets only after an authorization message has been received.

Claims

1. A method of authorizing an Internet Protocol (IP) enabled mobile host to access the Internet via a visited access network, the method comprising:

negotiating an IP address between the mobile host and the visited access network, wherein the mobile host has no direct or indirect billing relationship with the visited access network and the mobile host generates an IP address, which is not associated with any other mobile host connected to the visited access network”

;

sending one of electronic cash and authentication message to a control point within the visited access network;

determining, at the control point whether the electronic cash is authentic and if the electronic cash is authentic, sending an authorization message from the control point to an IP node within the visited access network, wherein the IP node allows passage of IP packets between the mobile host and the Internet; and

if the electronic cash is not authentic, the IP node blocks passage of the IP packets between the mobile host and the Internet.

2. The method according to claim 1, wherein said step of negotiating an IP address is carried out in response to the sending of an IP access request from the mobile host to said IP node within the access network.

3. The method according to claim 1 further comprising routing IP data packets at said IP node.

4. The method according to claim 3, further comprising carrying out a protocol conversion at the IP node between a carrier protocol used by the access network, and protocol used by the Internet.

5. The method according to claim 1 further comprising, upon receipt of the access request at the IP node, returning an IP address prefix from the IP node to the mobile host.

6. The method according to claim 1, wherein said step of negotiating further comprises carrying out a negotiation between the mobile host and a DHCP server of the access network.

7. The method according to claim 1, wherein the access network is one of

a wireless Local Area Network (LAN),

a Wide Area Network (WAN),

a Universal Mobile Telecommunication System (UMTS) network or a Global System for Mobile communications (GSM) network.

8. The method according to claim 1, wherein, upon receipt of electronic cash at the control point, the control point contacts a bank, or other electronic cash provider, to authenticate and ensure the sufficiency of the received electronic cash and, providing that the bank or cash provider returns a confirmation or authentication message to the control point, the control point sends the authorization message to the IP node in order to allow the passage of IP data packets between the mobile host and the Internet.

9. The method according to claim 1 further comprising incorporating electronic cash payments into IP packets sent from the mobile host to the control point.

10. The method according to claim 9, wherein the IP router is co-located with the control point.

11. The method according to claim 9, wherein said control point is co-located with a DHCP server, the DHCP server allocating an IP address to the mobile host during the IP address negotiation.

12. The method according to claim 1, wherein said IP node is an IP router.

13. The method of claim 1 further comprising the step of temporarily allocating to the mobile host a home agent located in the visited access network, wherein the home agent can communicate with a home agent in the mobile host'"'"'s home network.

14. The method according to claim 13, wherein the allocation of the home agent exists for the duration of the Internet connection.

15. The method according to claim 14 further comprising informing an Internet server of the IP address allocated to the mobile host, the server maintaining a mapping between mobile host identities and temporary IP addresses for subscribing mobile hosts.

16. The method according to claim 15, wherein the Internet server is a Domain Name Server (DNS).

17. The method according to claim 14 further comprising informing an Internet server of the location of the mobile host, the server maintaining a mapping between mobile host identifies and locations for subscribing mobile hosts.

18. An apparatus for use in enabling an Internet Protocol (IP) enabled mobile host to access the Internet via a visited access network, the apparatus comprising:

means for negotiating an IP address between the mobile host and the visited access networks, wherein the mobile host has no direct or indirect billing relationship with the visited access network and the mobile host determines whether the IP address is associated with any other mobile host connected to the visited access network, and

a control point within the visited access network for receiving electronic cash from the mobile host and for determining whether the received electronic cash is authentic and if the received electronic cash is authentic sending an authorization message to an IP node within the visited access network,

the IP node being arranged to block the transfer of messages between the mobile host and the Internet prior to receipt of an authorization message from the control point and to allow the transfer of the messages upon receipt of the authorization message.

19. The apparatus of claim 18, further comprising:

means for temporarily allocating to the mobile host a home agent located in the visited access network; and

means for establishing a communication link between a correspondent agent in said mobile host'"'"'s home network and said mobile host.