Network Controller Messaging For Ciphering in an Unlicensed Wireless Communication System

• US 20080311916A1
• Filed: 08/19/2008
• Published: 12/18/2008
• Est. Priority Date: 10/18/2002
• Status: Active Grant

• Current Assignee: Ribbon Communications Operating Company, Inc. (Ribbon Communications, Inc.)
• Original Assignee: Kineto Wireless Incorporated (Ribbon Communications, Inc.)
• Inventors: Baranowski, Joseph G., Mohammed, Jahangir, Shi, Jianxiong, Shekhar, Madhu C., Elam, Thomas G., Powell, Mark, Kolderup, Kenneth M., Gallagher, Michael D., Markovic, Milan
• Granted Patent: US 7,684,803 B2
• Time in Patent Office: Days
• US Class Current: 455/436
• CPC Class Codes: H04L 63/0272 Virtual private networks
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04W 60/04 using triggered events
• CPC Class Codes: H04W 76/30 Connection release
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 84/16 WPBX [Wireless Private Branch Exchange]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/12 Access point controller devices
• CPC Class Codes: H04W 88/16 Gateway arrangements
• CPC Class Codes: H04W 92/02 Inter-networking arrangements
• CPC Class Codes: H04W 92/06 between gateways and public network devices

Abstract

An unlicensed wireless service is adapted to generate the interface protocols of a licensed wireless service to provide transparent transition of communication sessions between a licensed wireless service and an unlicensed wireless service. In one embodiment, a mobile station includes level 1, level 2, and level 3 protocols for licensed wireless service and an unlicensed wireless service. An indoor base station and indoor network controller provide protocol conversion for the unlicensed wireless service into a standard base station controller interface of the licensed wireless service.

Claims

1-20. -20. (canceled)

21. A method comprising:

a) from a network controller of a first communication network that communicatively couples a plurality of service regions of the first communication network to a licensed wireless second communication network, sending a ciphering mode message to a particular service region to indicate that ciphering is required for a telecommunication device at the particular service region; and

b) from the network controller, sending a channel activation message to the particular service region in order to facilitate activation of a channel for a communication session of the telecommunication device, wherein the telecommunication device uses the ciphering mode message to enable ciphering when the communication session is handed over from the first communication network over to the licensed wireless second communication network.

22. The method of claim 21 further comprising receiving a ciphering mode complete message at the network controller after sending the ciphering mode message.

23. The method of claim 21, wherein said ciphering mode message comprises ciphering mode setting information for enabling ciphering when the communication session is subsequently handed over from the first communication network to the licensed wireless second communication network.

24. The method of claim 23, wherein said ciphering mode setting information is for storing on the telecommunication device.

25. The method of claim 21, wherein said ciphering mode message comprises an identity request.

26. The method of claim 21, wherein the first communication network is an unlicensed wireless network, wherein the telecommunication device is a dual-mode device comprising a first mode for communicating with the second communication network using licensed wireless frequencies and a second mode for communicating with the first communication network using unlicensed wireless frequencies.

27. The method of claim 21, wherein the communication session comprises voice communications.

28. The method of claim 21 further comprising establishing a secure link between the network controller and the service region.

29. The method of claim 28, wherein the secure link comprises a Transmission Control Protocol (TCP) session.

30. A method comprising:

a) from a network controller that communicatively couples a plurality of service regions of a first communication network to a licensed wireless second communication network, sending a ciphering mode message to a particular service region of the first communication network to indicate that ciphering is required for a telecommunication device at the particular service region; and

b) at the network controller, receiving a response to the ciphering mode message from the particular service region, wherein the response indicates that the telecommunication device at the particular service region will enable ciphering when a communication session established by the telecommunication device is handed over from the first communication network over to the licensed wireless second communication network.

31. The method of claim 30, wherein the response is received in a ciphering mode complete message comprising information that identifies the telecommunication device.

32. The method of claim 30, wherein the ciphering mode message comprises an identity request for identifying the telecommunication device.

33. The method of claim 30, wherein said ciphering mode message comprises ciphering mode setting information for enabling ciphering when the communication session is subsequently handed over from the first communication network to the licensed wireless second communication network.

34. A method comprising:

a) at a network controller that communicatively couples a plurality of service regions of a first communication network to a licensed wireless second communication network, receiving encryption information from the licensed wireless second communication network, wherein said encryption information is for enabling ciphering for a telecommunication device at a particular service region; and

b) from the network controller, sending the encryption information to the particular service region, wherein the encryption information is for use by the telecommunication device at the particular service region to enable ciphering when a communication session is handed over from the first communication network over to the licensed wireless second communication network.

35. The method of claim 34, wherein the encryption information is received in a ciphering mode command from the licensed wireless second communication network.

36. The method of claim 35, wherein the ciphering mode command further comprises an identity request for identifying the telecommunication device.

37. The method of claim 34, wherein the ciphering mode setting information is sent to the particular service region device in a ciphering mode command.

38. The method of claim 34 further comprising at the network controller, receiving a ciphering mode complete message from the particular region, wherein said ciphering mode complete message comprises information that identifies the telecommunication device.

39. The method of claim 34 further comprising from the network controller, sending a ciphering mode complete message to the licensed wireless second communication network, wherein said ciphering mode complete message comprises information that identifies the telecommunication device.