APPARATUS AND METHODS OF JOINT TRANSMIT POWER AND RESOURCE MANAGEMENT

• US 20140219243A1
• Filed: 09/13/2013
• Published: 08/07/2014
• Est. Priority Date: 02/07/2013
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: MESHKATI, Farhad, ZHANG, Lili, NAGARAJA, Sumeeth, KADOUS, Tamer Adel, PRAKASH, Rajat, PATEL, Chirag Sureshbhai, YAVUZ, Mehmet, CHANDE, Vinay
• Application Number:
  US14/026,845
• Publication Number:
  US 20140219243A1
• Time in Patent Office: Days
• US Class Current: 370/331
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04W 52/143 Downlink power control
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/265 taking into account the quality of service QoS
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 52/283 Power depending on the position of the mobile
• CPC Class Codes: H04W 52/343 taking into account loading or congestion level

Abstract

The present disclosure presents a method and apparatus for joint power and resource management in a wireless network. For example, the disclosure presents a method for receiving reference signal received power (RSRP) measurements of one or more neighboring base stations of a base station. In addition, such an example method, may include calibrating a transmit power of the base station based at least on the received measurements, and adjusting transmit resources of the base station in response to the calibration. As such, joint power and resource management in a wireless network may be achieved.

Claims

1. A method for joint power and resource management in a wireless network, comprising:

receiving reference signal received power (RSRP) measurements of one or more neighboring base stations of a base station;

calibrating a transmit power of the base station based at least on the received measurements; and

adjusting transmit resources of the base station at least in response to the calibrating.

2. The method of claim 1, wherein the calibrating further comprises:

increasing or decreasing the transmit power of the base station based on the received measurements, wherein the base station is a serving base station of a user equipment (UE) that transmitted the RSRP measurements of the one or more neighboring base stations.

3. The method of claim 1, wherein the adjusting further comprises:

orthogonalizing the transmit resources of the base station relative to transmit resources of the one or more neighboring base stations.

4. The method of claim 3, wherein the orthogonalizing comprises orthogonalizing in a frequency or a time domain.

5. The method of claim 4, wherein the orthogonalizing in a frequency domain further comprises:

performing a fractional frequency reuse (FFR) or a soft FFR procedure.

6. The method of claim 1, wherein the RSRP measurements include RSRP measurements of common reference signals (CRS) of the one or more neighboring base stations.

7. The method of claim 1, further comprising:

increasing the base station transmit power temporarily to attract user equipments (UEs).

8. The method of claim 1, wherein the transmit power and the transmit resources of the base station are adjusted in a coordinated fashion to maximize a total network utility parameter while maintaining a given quality of service (QoS), wherein the total network utility parameter is a sum of rates of all UEs in a system.

9. The method of claim 1, wherein the performing and the adjusting can be based on at least one of network listen measurements or user equipment (UE) measurement reports.

10. The method of claim 1, wherein the RSRP measurements are received from one or more UEs served by the base station.

11. The method of claim 1, wherein the calibrating further comprises configuring a periodic transmission power level increase for a temporary time period, wherein the temporary time period may be chosen to sufficiently enable idle mode UEs to perform search and discover the increased power level from the base station.

12. The method of claim 1, wherein the calibrating further comprises configuring one or more mobility parameters for use by a user equipment (UE) being served by the base station, wherein the one or more mobility parameters comprise one or more dense network thresholds that reduce handover of the UE from the base station to one of the other base stations.

13. An apparatus for joint power and resource management in a wireless network, comprising:

means for receiving reference signal received power (RSRP) measurements of one or more neighboring base stations of a base station;

means for calibrating a transmit power of the base station based at least on the received measurements; and

means for adjusting transmit resources of the base station at least in response to the calibrating.

14. The apparatus of claim 13, wherein the means for calibrating further comprises:

means for increasing or decreasing the transmit power of the base station based on the received measurements, wherein the base station is a serving base station of a user equipment (UE) that transmitted the RSRP measurements of the one or more neighboring base stations.

15. The apparatus of claim 13 wherein the means for adjusting comprises:

means for orthogonalizing the transmit resources of the base station relative to transmit resources of the one or more neighboring base stations.

16. The method of claim 15, wherein the means for orthogonalizing further comprises means for orthogonalizing in a frequency or a time domain.

17. The method of claim 16, wherein the means for orthogonalizing in a frequency domain comprises means for performing a fractional frequency reuse (FFR) or a soft FFR procedure.

18. A computer program product for joint power and resource management in a wireless network, comprising:

a computer-readable medium comprising code executable by a computer for;

receiving reference signal received power (RSRP) measurements of one or more neighboring base stations of a base station;

calibrating a transmit power of the base station based at least on the received measurements; and

adjusting transmit resources of the base station at least in response to the calibrating.

19. The computer program product of claim 18, wherein the code for calibrating further comprises:

code for increasing or decreasing the transmit power of the base station based on the received measurements, wherein the base station is a serving base station of a user equipment (UE) that transmitted the RSRP measurements of the one or more neighboring base stations.

20. The computer program product of claim 18 wherein the code for adjusting further comprises:

code for orthogonalizing the transmit resources of the base station relative to transmit resources of the one or more neighboring base stations.

21. The computer program product of claim 20, wherein the code for orthogonalizing further comprises code for orthogonalizing in a frequency or a time domain.

22. The computer program product of claim 21, wherein the code for orthogonalizing in a frequency domain further comprises code for performing a fractional frequency reuse (FFR) or a soft FFR procedure.

23. An apparatus for joint power and resource management in a wireless network, comprising:

a joint power and resource manager to receive reference signal received power (RSRP) measurements of one or more neighboring base stations of a base station;

a transmit power calibrator component to calibrate a transmit power of the base station based at least on the received measurements; and

a resource management component to adjust transmit resources of the base station in response to the calibration.

24. The apparatus of claim 23, wherein the transmit power calibrator component is further configured to increase or decrease the transmit power of the base station based at least on the received measurements.

25. The apparatus of claim 23, wherein the resource management component is configured to orthogonalize the transmit resources of the base station relative to transmit resources of the one or more neighboring base stations.

26. The apparatus of claim 25, wherein the resource management component is further configured to orthogonalize in a frequency or a time domain.

27. The apparatus of claim 26, wherein the resource management component is further configured to orthogonalize in a frequency domain that includes a fractional frequency reuse (FFR) or a soft FFR.

28. The apparatus of claim 23, wherein the RSRP measurements comprise:

RSRP measurements of common reference signals (CRS) of the one or more other neighboring base stations.

29. The apparatus of claim 23, wherein the transmit power calibrator component is further configured to temporarily increase the transmit power of the base station to attract user equipments (UEs).

30. The apparatus of claim 23, wherein the joint power and resource manager is further configured to increase a total network utility while maintaining a given Quality of Service (QoS).

31. The apparatus of claim 23, wherein the transmit power calibrator component and resource management component are further configured based on at least one of network listen measurements and user equipment (UE) measurement reports.