Peer-to-peer communication in ad hoc wireless network

• US 8,942,130 B2
• Filed: 03/07/2013
• Issued: 01/27/2015
• Est. Priority Date: 10/05/2005
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Kumar, Ravi, Walton, J. Rodney, Fu, Qiang, Dravida, Subrahmanyam
• Primary Examiner(s): SHIVERS, ASHLEY L
• Application Number:
  US13/788,841
• Publication Number:
  US 20130182614A1
• Time in Patent Office: 691 Days
• Field of Search: None
• US Class Current: 370/252
• 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 client device comprising:

at least one processor configured to request a wireless network for access to the wireless network and obtain authorization for communication via the wireless network from another wireless client device of the wireless network, wherein a decision to authorize the wireless client device for communication via the wireless network is made at the another wireless client device and the another wireless client device corresponds to an administrative network element that is configured to determine which wireless client devices are permitted to access the wireless network and wherein the at least one processor is configured to initiate communication via the wireless network after obtaining authorization from the another wireless client device; and

a memory coupled to the at least one processor.

2. The wireless client device of claim 1, wherein the at least one processor obtains authorization for restricted access covering a call being placed via the wireless network.

3. A method of operating a wireless client device, comprising:

requesting a wireless network for access to the wireless network;

obtaining authorization for communication from another wireless client device of the wireless network, wherein a decision to authorize the wireless client device for communication via the wireless network is made at the another wireless client device and the another wireless client device corresponds to an administrative network element that is configured to determine which wireless client devices are permitted to access the wireless network; and

initiating communication via the wireless network after obtaining authorization from the another wireless client device.

4. The method of claim 3, wherein the obtained authorization corresponds to an authorization for at least one of:

the wireless client device to access the wireless network in a time-restricted manner, or

the wireless client device to partially access the wireless network, or

the wireless client device to fully access the wireless network or access the wireless network in an unrestricted manner.

5. A wireless client device, comprising:

at least one processor configured to receive, from a wireless network, an indication that another wireless client device has requested access to and authorization for communication with the wireless network, to determine whether to grant the another wireless client device'"'"'s request to access the wireless network, and to notify the wireless network with regard to whether to grant access to the another wireless client device based on the determination; and

a memory coupled to the at least one processor.

6. The wireless client device of claim 5, wherein the at least one processor is configured to determine whether to grant the another wireless client device time-restricted access, partial-access, full-access and/or unrestricted access to the wireless network.

7. A method of operating a wireless client device, comprising:

receiving, from a wireless network, an indication that another wireless client device has requested access to and authorization for communication with the wireless network;

determining whether to grant the another wireless client device'"'"'s request to access the wireless network; and

notifying the wireless network with regard to whether to grant access to the another wireless client device based on the determination.

8. The method of claim 7, wherein the determining step determines whether to grant the another wireless client device time-restricted access, partial-access, full-access and/or unrestricted access to the wireless network.

9. A wireless client device, comprising:

means for requesting a wireless network for access to the wireless network;

means for obtaining authorization for communication from another wireless client device of the wireless network, wherein a decision to authorize the wireless client device for communication via the wireless network is made at the another wireless client device and the another wireless client device corresponds to an administrative network element that is configured to determine which wireless client devices are permitted to access the wireless network; and

means for initiating communication via the wireless network after obtaining authorization from the another wireless client device.

10. The wireless client device of claim 9, wherein the obtained authorization corresponds to an authorization for at least one of:

the wireless client device to access the wireless network in a time-restricted manner, or

the wireless client device to partially access the wireless network, or

the wireless client device to fully access the wireless network or access the wireless network in an unrestricted manner.

11. A wireless client device, comprising:

means for receiving, from a wireless network, an indication that another wireless client device has requested access to and authorization for communication with the wireless network;

means for determining whether to grant the another wireless client device'"'"'s request to access the wireless network; and

means for notifying the wireless network with regard to whether to grant access to the another wireless client device based on the determination.

12. The wireless client device of claim 11, wherein the means for determining determines whether to grant the another wireless client device time-restricted access, partial-access, full-access and/or unrestricted access to the wireless network.

13. A non-transitory computer-readable medium containing instructions stored thereon, which, when executed by a wireless client device, cause the wireless client device to perform operations, the instructions comprising:

at least one instruction to cause the wireless client device to request a wireless network for access to the wireless network;

at least one instruction to cause the wireless client device to obtain authorization for communication from another wireless client device of the wireless network, wherein a decision to authorize the wireless client device for communication via the wireless network is made at the another wireless client device and the another wireless client device corresponds to an administrative network element that is configured to determine which wireless client devices are permitted to access the wireless network; and

at least one instruction to cause the wireless client device to initiate communication via the wireless network after obtaining authorization from the another wireless client device.

14. The non-transitory computer-readable medium of claim 13, wherein the obtained authorization corresponds to an authorization for at least one of:

the wireless client device to access the wireless network in a time-restricted manner, or

the wireless client device to partially access the wireless network, or

the wireless client device to fully access the wireless network or access the wireless network in an unrestricted manner.

15. A non-transitory computer-readable medium containing instructions stored thereon, which, when executed by a wireless client device, cause the wireless client device to perform operations, the instructions comprising:

at least one instruction to cause the wireless client device to receive, from a wireless network, an indication that another wireless client device has requested access to and authorization for communication with the wireless network;

at least one instruction to cause the wireless client device to determine whether to grant the another wireless client device'"'"'s request to access the wireless network; and

at least one instruction to cause the wireless client device to notify the wireless network with regard to whether to grant access to the another wireless client device based on the determination.

16. The non-transitory computer-readable medium of claim 15, wherein the at least one instruction to cause the wireless client device to determine determines whether to grant the another wireless client device time-restricted access, partial-access, full-access and/or unrestricted access to the wireless network.