System and method for distributing wireless network access parameters

• US 20070070935A1
• Filed: 09/28/2005
• Published: 03/29/2007
• Est. Priority Date: 09/28/2005
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Prakash, Rajat, Jain, Nikhil
• Granted Patent: US 7,653,037 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 63/102 Entity profiles
• 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: H04W 12/08 Access security
• CPC Class Codes: H04W 12/50 Secure pairing of devices
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 48/14 using user query or user detection
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 52/38 TPC being performed in particular situations
• CPC Class Codes: H04W 52/50 at the moment of starting communication in a multiple access environment
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A system and method are provided for distributing wireless network access parameters in a multi-mode communications user terminal (UT). The method includes: establishing a link between a UT and a first communications network (i.e., a cellular network); accessing a parameters server via the first network; downloading access parameters for a wireless, second communications network (i.e., a Wireless Local Area Network); and, using the downloaded access parameters to establish a wireless link between the UT and the second communications network. The downloaded access parameters may include information such as a security key, Service Set IDentifier (SSID), traffic channel allocation, and optimization parameters including transmit power, quality of service (QoS) settings, and operational mode. Alternately, the database may cross-reference UT ID to parameters such as QoS, IP address, gateway information, subnet mask, Domain Name Server (DNS) information, or geographical location.

Claims

1. In a multi-mode communications user terminal (UT), a method for distributing wireless network access parameters, the method comprising:

establishing a link between a UT and a first communications network;

accessing a parameters server via the first network;

downloading access parameters for a wireless, second communications network; and

,

using the downloaded access parameters to establish a wireless link between the UT and the second communications network.

2. The method of claim 1 wherein downloading access parameters for the second communications network includes downloading information selected from the group consisting of a security key, Service Set IDentifier (SSID), traffic channel allocation, Wired Equivalent Privacy (WEP) setup data, and optimization parameters including transmit power, receive power, transfer rate, quality of service (QoS) settings, and operational mode.

3. The method of claim 1 wherein establishing the link between the UT and the first communications network includes establishing a link to a first communications network selected from the group consisting of Ethernet, IEEE 802.11, IEEE 802.15, Bluetooth, WiMax, and a cellular telephone network.

4. The method of claim 1 wherein establishing the link between the UT and the second communications network includes establishing a link to a second communications network selected from the group consisting of IEEE 802.11, Bluetooth, WiMax, IEEE 802.15, and a cellular telephone network.

5. The method of claim 1 wherein accessing the parameters server via the first communications network includes:

supplying a Media Access Controller (MAC) address associated with a second network base terminal; and

,

accessing a database cross-referencing the MAC address to parameters required to access the base terminal.

6. The method of claim 1 wherein accessing the parameters server via the first communications network includes:

supplying an identity (ID) associated with the UT; and

,

accessing a database cross-referencing the UT ID to parameters selected from the group consisting of QoS, IP address, gateway information, subnet mask, Domain Name Server (DNS) information, and geographical location.

7. The method of claim 1 wherein establishing the link between the UT and the first communications network includes establishing a link with a cellular telephone network;

wherein downloading access parameters for the second communications network includes downloading a security key for a second network selected from the group consisting of an IEEE 802.11, Bluetooth, WiMax, and IEEE 802.15 network; and

,

wherein using the downloaded access parameters to establish a wireless link between the UT and the second communications network includes using the security key to establish a link between the UT and a second network.

8. The method of claim 1 wherein establishing the link between the UT and the first communications network includes establishing a link with a cellular telephone network;

wherein downloading access parameters for the second communications network includes downloading a security key for an IEEE 802.11 network; and

,

wherein using the downloaded access parameters to establish a wireless link between the UT and the second communications network includes using the security key to establish a link between the UT and a IEEE 802.11 access point (AP).

9. The method of claim 8 further comprising:

monitoring the IEEE 802.11 network;

detecting a MAC address and network ID associated with an AP;

wherein accessing the parameters server via the cellular telephone network includes supplying the AP MAC address and network ID to the parameters server; and

,

wherein downloading the security key for the IEEE 802.11 network includes downloading a security key associated with the monitored AP.

10. The method of claim 1 wherein establishing the link between the UT and the first communications network includes establishing a link with a cellular telephone network;

the method further comprising;

verifying a UT subscriber identity in response to the UT establishing a link with the cellular network; and

,

wherein downloading access parameters for the second communications network includes downloading access parameters in response to verifying the UT subscriber identity.

11. The method of claim 10 wherein downloading access parameters in response to verifying the UT subscriber identity includes downloading access parameters via a channel selected from the group consisting of a cellular network databurst channel, a cellular network Short Message Service (SMS) channel, and a cellular network UT terminated data call.

12. In a multi-mode communications user terminal (UT), a system for distributing wireless network access parameters, the system comprising:

a first subsystem for establishing a link between a UT and a first communications network, accessing a parameters server via the first network, and downloading access parameters for a second communications network; and

,

a second subsystem for establishing a wireless communications link between the UT and the second communications network using the access parameters downloaded to the first subsystem.

13. The system of claim 12 wherein the first subsystem downloads access parameters for the second communications network selected from the group consisting of a security key, Service Set IDentifier (SSID), traffic channel allocation, and optimization parameters including transmit power, receive power, transfer rate, quality of service (QoS) settings, Wired Equivalent Privacy (WEP) setup data, and operational mode.

14. The system of claim 12 wherein the first subsystem establishes a link to a first communications network selected from the group consisting of Ethernet, IEEE 802.11, IEEE 802.15, Bluetooth, WiMax, and a cellular telephone network.

15. The system of claim 12 wherein the second subsystem establishes a link to a second communications network selected from the group consisting of IEEE 802.11, Bluetooth, WiMax, IEEE 802.15, and a cellular telephone network.

16. The system of claim 12 wherein the first subsystem accesses the parameters server by supplying a Media Access Controller (MAC) address associated with a second communications network base terminal, and accesses a database cross-referencing the MAC address to parameters required to access the base terminal.

17. The system of claim 12 wherein the first subsystem accesses the parameters server by supplying an identity (ID) associated with the UT, and accesses a database cross-referencing the UT ID to parameters selected from the group consisting of QoS, IP address, gateway information, subnet mask, Domain Name Server (DNS) information, and geographical location.

18. The system of claim 12 wherein the first subsystem is a cellular subsystem for establishing a link with cellular telephone network that downloads a security key for the second communications network;

and,

wherein the second subsystem uses the security key to establish a link between the UT and a second communications network selected from the group consisting of an IEEE 802.11, Bluetooth, WiMax, and IEEE 802.15 network.

19. The system of claim 12 wherein the first subsystem is a cellular subsystem for establishing a link with a cellular telephone network that downloads a security key for an IEEE 802.11 network;

and,

wherein the second subsystem is a wireless local area network (WLAN) subsystem that uses the security key to establish a link with a IEEE 802.11 access point (AP).

20. The system of claim 19 wherein the WLAN subsystem monitors the IEEE 802.11 network and detects a MAC address and network ID associated with an AP;

and,

wherein the cellular subsystem supplies the AP MAC address and network ID to the parameters server via the cellular network, and downloads a security key associated with the monitored AP.

21. The system of claim 12 wherein the first subsystem is a wireless cellular telephone network, and wherein the cellular subsystem downloads access parameters for the second communications network in response to verifying a UT subscriber identity.

22. The system of claim 21 wherein the cellular subsystem downloads UT subscriber identity-verified access parameters via a channel selected from the group consisting of a cellular network databurst channel, a cellular network Short Message Service (SMS) channel, and a cellular network UT terminated data call.

23. A system for distributing wireless network access parameters, the system comprising:

a multi-mode user terminal (UT) comprising;

a first subsystem for establishing a link between the UT and a first communications network, and downloading access parameters for a second communications network; and

,

a second subsystem for establishing a wireless communications link between the UT and the second communications network, using the access parameters downloaded to the first subsystem; and

,

a parameters server having an interface connected to the first network for supplying second network access parameters.