PEER-TO-PEER DEVICE IDENTIFICATION AND COGNITIVE COMMUNICATION

• US 20150173058A1
• Filed: 02/23/2015
• Published: 06/18/2015
• Est. Priority Date: 07/11/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: VISWANATH, Pramod
• Granted Patent: US 9,900,866 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 1/1867 Arrangements specially adapted for the transmitter end
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

Systems and methodologies are described that facilitate identifying devices in a wireless network and cognitively communicating with devices over utilized frequencies. Devices can be identified by receiving downlink resource assignments related to the devices, evaluating uplink transmissions thereover, and identifying the devices from one or more aspects of the uplink transmissions (e.g., an identifier in the transmission). Moreover, the uplink transmissions can be re-transmitted to a serving device to provide relay functionality for the transmissions. Additionally, peer-to-peer communication with the device and/or other devices can be facilitated by using a portion of available transmission power to re-transmit while using the other portion to transmit peer-to-peer communications. Thus, interference caused by the peer-to-peer communications is mitigated by additionally functioning as a relay using a portion of the transmit power.

Claims

1. A method, comprising:

transmitting an uplink transmission to a serving device in a wireless network;

re-transmitting the uplink transmission to the serving device during an uplink re-transmission time slot; and

receiving a peer-to-peer communication from a peer-to-peer device during the uplink re-transmission time slot.

2. The method of claim 1, further comprising receiving a re-transmission notification from the serving device for the uplink transmission.

3. The method of claim 2, wherein the re-transmission notification is received over a control channel.

4. The method of claim 1, wherein the peer-to-peer communication is sent using a portion of available transmission power.

5. The method of claim 1, wherein the serving device is an access point and the peer-to-peer device is a cognitive radio.

6. A wireless communications apparatus, comprising:

at least one processor configured to;

transmit an uplink transmission to a serving device in a wireless network;

re-transmit the uplink transmission to the serving device during an uplink re-transmission time slot; and

receive a peer-to-peer communication from a peer-to-peer device during the uplink re-transmission time slot; and

a memory coupled to the at least one processor.

7. The wireless communications apparatus of claim 6, wherein the at least one processor is further configured to receive a re-transmission notification from the serving device for the uplink transmission.

8. The wireless communications apparatus of claim 7, wherein the re-transmission notification is received over a control channel.

9. The wireless communications apparatus of claim 6, wherein the peer-to-peer communication is sent using a portion of available transmission power.

10. The wireless communications apparatus of claim 6, wherein the serving device is an access point and the peer-to-peer device is a cognitive radio.

11. An apparatus, comprising:

means for transmitting an uplink transmission to a serving device in a wireless network;

means for re-transmitting the uplink transmission to the serving device during an uplink re-transmission time slot; and

means for receiving a peer-to-peer communication from a peer-to-peer device during the uplink re-transmission time slot.

12. The apparatus of claim 11, further comprising means for receiving a re-transmission notification from the serving device for the uplink transmission.

13. The apparatus of claim 12, wherein the re-transmission notification is received over a control channel.

14. The apparatus of claim 11, wherein the peer-to-peer communication is sent using a portion of available transmission power.

15. The apparatus of claim 11, wherein the serving device is an access point and the peer-to-peer device is a cognitive radio.

16. A non-transitory computer-readable medium, comprising:

code for causing at least one computer to transmit an uplink transmission to a serving device in a wireless network;

code for causing the at least one computer to re-transmit the uplink transmission to the serving device during an uplink re-transmission time slot; and

code for causing the at least one computer to receive a peer-to-peer communication from a peer-to-peer device during the uplink re-transmission time slot.

17. The non-transitory computer-readable medium of claim 16, further comprising code for causing the at least one computer to receive a re-transmission notification from the serving device for the uplink transmission.

18. The non-transitory computer-readable medium of claim 17, wherein the re-transmission notification is received over a control channel.

19. The non-transitory computer-readable medium of claim 16, wherein the peer-to-peer communication is sent using a portion of available transmission power.

20. The non-transitory computer-readable medium of claim 16, wherein the serving device is an access point and the peer-to-peer device is a cognitive radio.

21. An apparatus, comprising:

a transmitter configured to transmit an uplink transmission to a serving device in a wireless network and re-transmit the uplink transmission to the serving device during an uplink re-transmission time slot; and

a peer-to-peer communication component configured to receive a peer-to-peer communication from a peer-to-peer device during the uplink re-transmission time slot.

22. The apparatus of claim 21, further comprising a receiver configured to receive a re-transmission notification from the serving device for the uplink transmission.

23. The apparatus of claim 22, wherein the re-transmission notification is received over a control channel.

24. The apparatus of claim 21, wherein the peer-to-peer communication is sent using a portion of available transmission power.

25. The apparatus of claim 21, wherein the serving device is an access point and the peer-to-peer device is a cognitive radio.