PEER-TO-PEER COMMUNICATION IN AD HOC WIRELESS NETWORK

• US 20130182614A1
• Filed: 03/07/2013
• Published: 07/18/2013
• Est. Priority Date: 10/05/2005
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Walton, J. Rodney, Fu, Qiang, Dravida, Subrahmanyam, KUMAR, Ravi
• Granted Patent: US 8,942,130 B2
• Time in Patent Office: Days
• US Class Current: 370/255
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04W 12/0433 Key management protocols
• CPC Class Codes: H04W 12/069 using certificates or pre-shared keys
• CPC Class Codes: H04W 28/0268 using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

For a peer-to-peer call in an ad hoc wireless network, a wireless device performs discovery of a target wireless device, performs authentication of the target wireless device and generates a session key (e.g., using a pre-shared key or a certificate provisioned on the wireless device), forms an ad hoc wireless network with the target wireless device, and communicates peer-to-peer with the target wireless device via the ad hoc wireless network. The wireless device may perform discovery with a list of identifiers for wireless devices designated to communicate with this wireless device. The wireless device may derive a service set identifier (SSID) used to identify the ad hoc wireless network based on its user-specific identifier (e.g., its phone number) and/or a user-specific identifier for the target wireless device. The wireless device may also performs IP address discovery using the user-specific identifier for the target wireless device.

Claims

1. A wireless device comprising:

at least one processor configured to process traffic data for a peer-to-peer call in accordance with the quality of service (QoS) requirements ascertained for the peer-to-peer call with a target wireless device of the peer-to-peer call and send the processed traffic data to the target wireless device; and

a memory coupled to the at least one processor.

2. The wireless device of claim 1, wherein the at least one processor is configured to mark packets carrying the traffic data using at least one packet header field.

3. The wireless device of claim 2, wherein the at least one packet header field comprises a type of service (TOS) field in Internet Protocol version 4 (IPv4), a traffic class field in IP version 6 (IPv6), or a differentiated services (DS) field.

4. The wireless device of claim 1, wherein the at least one processor is configured to classify the traffic data using application programming interfaces (APIs).

5. The wireless device of claim 1, wherein the at least one processor is configured to mark a buffer storing the traffic data with handling information for the traffic data.

6. A method comprising:

ascertaining quality of service (QoS) requirements for a peer-to-peer call with a target wireless device,

processing traffic data for the peer-to-peer call in accordance with the QoS requirements, and

sending the processed traffic data to the target wireless device.

7. A wireless communication device comprising:

means for ascertaining quality of service (QoS) requirements for a peer-to-peer call with a target wireless device,

means for processing traffic data for the peer-to-peer call in accordance with the QoS requirements, and

means for sending the processed traffic data to the target wireless device.

8. A computer program product comprising:

instructions for ascertaining quality of service (QoS) requirements for a peer-to-peer call with a target wireless device,

instructions for processing traffic data for the peer-to-peer call in accordance with the QoS requirements, and

instructions for sending the processed traffic data to the target wireless device.

9. A wireless device comprising:

at least one processor configured to perform discovery of a target wireless device and to authenticate the target wireless device after discovery, the at least one processor configured to form an ad hoc wireless network for peer-to-peer communication with the target wireless device and communicate peer-to-peer with the target wireless device via the ad hoc wireless network; and

a memory coupled to the at least one processor.

10. The wireless device of claim 9, wherein the at least one processor is configured to generate a session key based on a pre-shared key (PSK) or a certificate provisioned on the wireless device and use the session key for peer-to-peer communication with the target wireless device.

11. The wireless device of claim 9, wherein the at least one processor is configured to process a received pair-wise master key (PMK) and group master key (GMK) from a wireless communication network, and to generate a session key based on the PMK and the GMK, which is used for peer-to-peer communication with the target wireless device.

12. A method comprising:

performing discovery of a target wireless device;

authenticating the target wireless device after discovery;

forming an ad hoc wireless network for peer-to-peer communication with the target wireless device at a wireless communication device; and

communicating peer-to-peer with the target wireless device via the ad hoc wireless network.

13. An apparatus comprising:

means for performing discovery of a target wireless device;

means for authenticating the target wireless device after discovery;

means for forming an ad hoc wireless network for peer-to-peer communication with the target wireless device at a wireless communication device; and

means for communicating peer-to-peer with the target wireless device via the ad hoc wireless network.

14. A wireless device comprising:

at least one processor configured to request access to a wireless network and obtain authorization for communication via the wireless from a wireless client device of the wireless network, and wherein the at least one processor is configured to initiate communication via the wireless network after obtaining authorization from the wireless client device; and

a memory coupled to the at least one processor.

15. The wireless device of claim 14, wherein the at least one processor obtains authorization for restricted access covering a call being placed via the wireless network.