System and method for maintaining a virtual connection to a network node

• US 6,449,722 B1
• Filed: 07/08/1998
• Issued: 09/10/2002
• Est. Priority Date: 07/08/1998
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: England, David G., West, Terry D.
• Primary Examiner(s): Hayes, Gail
• Assistant Examiner(s): SONG, HOSUK
• Application Number:
  US09/112,071
• Time in Patent Office: 1,525 Days
• Field of Search: 380/23, 380/49, 380/247, 380/248, 380/249, 380/270, 713/200, 713/201, 713/202, 713/168, 713/169, 713/170, 455/434, 455/435, 455/556, 455/455, 455/551, 455/426, 455/552, 370/331
• US Class Current: 726/4
• CPC Class Codes: H04L 45/22 Alternate routing
• CPC Class Codes: H04L 63/0272 Virtual private networks
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/18 using different networks or channels, e.g. using out of band channels cryptographic mechanisms or cryptographic arrangements for key distribution involving distinctive intermediate devices or communication paths H04L9/0827; cryptographic mechanisms or cryptographic arrangements for authentication using a plurality of channels H04L9/3215
• CPC Class Codes: H04M 3/38 Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections queuing arrangements H04Q3/64
• CPC Class Codes: H04M 3/42 Systems providing special services or facilities to subscribers specially adapted for wireless communication networks H04W4/00
• CPC Class Codes: H04W 12/062 Pre-authentication
• CPC Class Codes: H04W 12/065 Continuous authentication
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/22 Manipulation of transport tunnels

Abstract

A wireless device is provided with a plurality of connectivity options that enable it to connect to a carrier via alternative connectivity routes thereby providing access to value-added services and other information over plurality of connectivity routes. A user of the wireless device may select alternative connectivities when available based on dollar expense, available bandwidth, reliability, latency, or other considerations. Volume data delivery may be deferred until a more suitable connectivity route is established. With each change of connectivity the wireless device should reauthenticate itself. Reauthentication can be simplified by employing the previously authenticated route and leveraging the original authentication.

Claims

1. A system comprising:

a wireless device having a plurality of connectivity options;

a carrier that provides an interface between the wireless device and desired information;

a base station through which the wireless device may establish wireless communication with the carrier; and

a virtual base station controller interfacing between the carrier and the wireless device when an alternative connectivity is employed, such that whether the wireless device interfaces via the virtual base station controller or establishes wireless communication through the base station is transparent to the carrier.

2. The system of claim 1 wherein the wireless device tunnels a network packet over the alternative connectivity.

3. The system of claim 2 wherein the virtual base station controller detunnels the network packet and presents the network packet to the carrier and wherein the virtual base station controller maintains a record of a source of the network packet.

4. The system of claim 3 wherein the network packets are tunneled in TCP/IP packets.

5. The system of claim 4 wherein the TCP/IP packets are secured using virtual private network techniques.

6. The system of claim 1 wherein when the wireless device establishes a new connectivity, authentication is performed using a previously authenticated connectivity.

7. A method comprising:

establishing a new connection route to a carrier from a wireless device;

receiving a datum from the carrier over one of a previously authenticated connection route and the new connection route; and

sending proof of receipt of the datum to the carrier over the one of the new connection route and the previously authenticated connection route on which the datum was not received.

8. The method of claim 7 further comprising:

tunneling network packets to the carrier from the wireless device over the new connection route.

9. The method of claim 7 wherein the wireless device maintains connection to both the new connection route and the previously authenticated connection route until authentication of the new connection route is complete.

10. The method of claim 7 wherein the datum is received after the new connection route is requested.

11. A method comprising:

periodically forwarding an authentication datum to a wireless device over an authenticated connectivity;

receiving a proof of receipt of the authentication datum after the wireless device changes to a new connectivity; and

treating the new connectivity as authenticated once the proof of receipt is received.

12. The method of claim 11 further comprising:

establishing a time limit during which the authentication datum is valid.

13. The method of claim 12 wherein the time limit may vary depending on an information requested.