Interference management for different wireless communication technologies

• US 9,491,773 B2
• Filed: 12/19/2014
• Issued: 11/08/2016
• Est. Priority Date: 09/12/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Gaal, Peter, Agrawal, Avneesh
• Primary Examiner(s): MEW, KEVIN D
• Application Number:
  US14/576,607
• Publication Number:
  US 20150105092A1
• Time in Patent Office: 690 Days
• Field of Search: 370/230, 370/230.1, 370231-232, 370/235, 370328-330, 370335-336, 370/338, 370342-343, 370345-346, 370/437, 370441-444, 370/465, 370/468
• US Class Current: 1/1
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/541 using the level of interference
• 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: Y02D 30/70 in wireless communication networks

Abstract

Systems and methodologies for avoiding interference with disparate communication technologies when allocating and/or utilizing wireless communication resources are provided. Access points can generate resource assignments for mobile devices based on resources utilized by disparate communication technology devices. The resource assignments may avoid the disparate communication technology resources, allocate narrow bands over the disparate communication technology resources, and/or avoid or limit allocations in a measurement gap during which disparate communication technology devices communicate. Mobile devices can provide information to the access points, such as a communication technology to avoid interfering or resources utilized by devices of the disparate communication technology. This information can be acquired by receiving signals from the devices and/or detecting presence of the devices. In addition, a mobile device can reduce transmission power over resources used by the disparate communication technology.

Claims

1. A method for wireless communications by an apparatus of a first communication technology, comprising:

receiving, by a mobile device, a resource allocation from an access point (AP);

determining a time period during which a transmission utilizing the resource allocation potentially interferes with a communication by a device using a second communication technology; and

lowering transmit power for a transmission scheduled to use the resource allocation during the time period.

2. The method of claim 1, further comprising:

receiving a signal from the device, wherein the time period is determined from the received signal.

3. The method of claim 2, wherein the mobile device is configured with a co-located radio, and wherein the signal is received using the co-located radio.

4. The method of claim 2, wherein the received signal includes an indication of one or more resources used by the device, and wherein a transmission by the mobile device using a resource from the resource allocation that coincides with the one or more resources used by the device potentially interferes with the device.

5. The method of claim 2, wherein the received signal includes an indication of a measurement gap during which the device using the second communication technology transmits.

6. The method of claim 1, wherein lowering the transmit power comprises cancellation of the transmission scheduled to use the resource allocation during the time period.

7. The method of claim 1, wherein the transmission scheduled to use the resource allocation potentially interferes with the device using the second communication technology at a spectral regrowth or second harmonic order.

8. The method of claim 1, wherein the second communication technology comprises a global positioning system (GPS) communication technology, a MediaFLO communication technology, a digital video broadcasting-handheld (DVB-H) communication technology, or any combination thereof.

9. A wireless communications apparatus of a first communication technology, comprising:

at least one processor configured to;

receive, by a mobile device, a resource allocation from an access point (AP);

determine a time period during which a transmission utilizing the resource allocation potentially interferes with a communication by a device using a second communication technology; and

lower transmit power for a transmission scheduled to use the resource allocation during the time period; and

a memory coupled to the at least one processor.

10. The wireless communications apparatus of claim 9, wherein the at least one processor is further configured to:

receive a signal from the device, wherein the time period is determined from the received signal.

11. The wireless communications apparatus of claim 10, wherein the mobile device is configured with a co-located radio, and wherein the at least one processor is configured to receive the signal using the co-located radio.

12. The wireless communications apparatus of claim 10, wherein the received signal includes an indication of one or more resources used by the device, and wherein a transmission by the mobile device using a resource from the resource allocation that coincides with the one or more resources used by the device potentially interferes with the device.

13. The wireless communications apparatus of claim 10, wherein the received signal includes an indication of a measurement gap during which the device using the second communication technology transmits.

14. The wireless communications apparatus of claim 9, wherein lowering the transmit power comprises cancellation of the transmission scheduled to use the resource allocation during the time period.

15. The wireless communications apparatus of claim 9, wherein the transmission scheduled to use the resource allocation potentially interferes with the device using the second communication technology at a spectral regrowth or second harmonic order.

16. The wireless communications apparatus of claim 9, wherein the second communication technology comprises a global positioning system (GPS) communication technology, a MediaFLO communication technology, a digital video broadcasting-handheld (DVB-H) communication technology, or any combination thereof.

17. A wireless communications apparatus of a first communication technology, comprising:

means for receiving, by a mobile device, a resource allocation from an access point (AP);

means for determining a time period during which a transmission utilizing the resource allocation potentially interferes with a communication by a device using a second communication technology; and

means for lowering transmit power for a transmission scheduled to use the resource allocation during the time period.

18. The wireless communications apparatus of claim 17, further comprising:

means for receiving a signal from the device, wherein the time period is determined from the received signal.

19. The wireless communications apparatus of claim 18, wherein the received signal includes an indication of one or more resources used by the device, and wherein a transmission by the mobile device using a resource from the resource allocation that coincides with the one or more resources used by the device potentially interferes with the device.

20. The wireless communications apparatus of claim 18, wherein the received signal includes an indication of a measurement gap during which the device using the second communication technology transmits.

21. A non-transitory computer-readable medium storing computer executable code for wireless communication which, when executed by a processor, cause the processor to perform:

receiving, by a mobile device, a resource allocation from an access point (AP);

determining a time period during which a transmission utilizing the resource allocation potentially interferes with a communication by a device using a second communication technology; and

lowering transmit power for a transmission scheduled to use the resource allocation during the time period.

22. The non-transitory computer-readable medium storing computer executable code of claim 21, further comprising code to cause the processor to perform:

receiving a signal from the device, wherein the time period is determined from the received signal.

23. The non-transitory computer-readable medium storing computer executable code of claim 22, wherein the received signal includes an indication of one or more resources used by the device, and wherein a transmission by the mobile device using a resource from the resource allocation that coincides with the one or more resources used by the device potentially interferes with the device.

24. The non-transitory computer-readable medium storing computer executable code of claim 22, wherein the received signal includes an indication of a measurement gap during which the device using the second communication technology transmits.