Power allocation for power control bits in a cellular network

• US 8,165,619 B2
• Filed: 10/02/2002
• Issued: 04/24/2012
• Est. Priority Date: 10/02/2002
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Attar, Rashid Ahmed, Sindhushayana, Nagabhushana, Black, Peter J.
• Primary Examiner(s): DEAN, RAYMOND S
• Application Number:
  US10/263,976
• Publication Number:
  US 20040198404A1
• Time in Patent Office: 3,492 Days
• Field of Search: 455/522, 455/69, 455/63, 455/562, 455/560, 455/422, 455/517, 455/518, 455/127.1, 455/127.5, 455/63.1, 455/67.13, 370/318
• US Class Current: 455/522
• CPC Class Codes: H04W 52/32 TPC of broadcast or control channels
• CPC Class Codes: H04W 52/325 Power control of control or pilot channels

Abstract

A power allocation value for power control information transmitted from a first station to a plurality of stations is determined by receiving data rate control information from the plurality of stations in a communications system. Supplemental information relating to the data rate control information is then generated, and an improved signal strength value is produced in accordance with the supplemental information. The power allocation value for the power control information transmitted from the first station to the plurality of stations is determined in accordance with the improved signal strength value.

Claims

1. A method for allocating power to a forward link power control channel, the method being implemented by a base station, the method comprising:

determining that early-termination information is available;

using the early-termination information to determine an effective data rate;

using the effective data rate to determine a forward link signal strength value; and

determining a power allocation value for power control information that is transmitted from the base station to a remote station based on the forward link signal strength value.

2. The method of claim 1, further comprising receiving data rate control information from the remote station, wherein the effective data rate is used instead of the data rate control information to determine the forward link signal strength value.

3. The method of claim 2, wherein the effective data rate is higher than a data rate that is requested by the remote station via the data rate control information.

4. The method of claim 1, wherein using the effective data rate to determine the forward link signal strength value comprises mapping the effective data rate to the forward link signal strength value via a look-up table.

5. The method of claim 1, further comprising filtering the effective data rate.

6. The method of claim 1, further comprising smoothing the forward link signal strength value using a filter.

7. The method of claim 1, wherein the effective data rate is used to determine the forward link signal strength value for a period of time that is longer than a current slot.

8. The method of claim 7, wherein the period of time includes the current slot plus a predetermined number of slots.

9. The method of claim 7, wherein the effective data rate is used to determine the forward link signal strength value until a new data packet is received.

10. The method of claim 2, further comprising increasing the forward link signal strength value if the data rate control information is directed at another sector of the base station.

11. The method of claim 2, further comprising decreasing the forward link signal strength value if the data rate control information is directed at another base station.

12. A base station that is configured to allocate power to a forward link power control channel, comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory, the instructions being executable to;

determine that early-termination information is available;

use the early-termination information to determine an effective data rate;

use the effective data rate to determine a forward link signal strength value; and

determine a power allocation value for power control information that is transmitted from the base station to a remote station based on the forward link signal strength value.

13. The base station of claim 12, wherein the instructions are also executable to receive data rate control information from the remote station, wherein the effective data rate is used instead of the data rate control information to determine the forward link signal strength value.

14. The base station of claim 13, wherein the effective data rate is higher than a data rate that is requested by the remote station via the data rate control information.

15. The base station of claim 12, wherein using the effective data rate to determine the forward link signal strength value comprises mapping the effective data rate to the forward link signal strength value via a look-up table.

16. The base station of claim 12, wherein the instructions are also executable to filter the effective data rate.

17. The base station of claim 12, wherein the instructions are also executable to smooth the forward link signal strength value using a filter.

18. The base station of claim 12, wherein the effective data rate is used to determine the forward link signal strength value for a period of time that is longer than a current slot.

19. The base station of claim 18, wherein the period of time includes the current slot plus a predetermined number of slots.

20. The base station of claim 18, wherein the effective data rate is used to determine the forward link signal strength value until a new data packet is received.

21. The base station of claim 13, wherein the instructions are also executable to increase the forward link signal strength value if the data rate control information is directed at another sector of the base station.

22. The base station of claim 13, wherein the instructions are also executable to decrease the forward link signal strength value if the data rate control information is directed at another base station.

23. A base station that is configured to allocate power to a forward link power control channel, comprising:

means for determining that early-termination information is available;

means for using the early-termination information to determine an effective data rate;

means for using the effective data rate to determine a forward link signal strength value; and

means for determining a power allocation value for power control information that is transmitted from the base station to a remote station based on the forward link signal strength value.

24. The base station of claim 23, further comprising means for receiving data rate control information from the remote station, wherein the effective data rate is used instead of the data rate control information to determine the forward link signal strength value.

25. The base station of claim 24, wherein the effective data rate is higher than a data rate that is requested by the remote station via the data rate control information.

26. The base station of claim 23, wherein the means for using the effective data rate to determine the forward link signal strength value comprises means for mapping the effective data rate to the forward link signal strength value via a look-up table.

27. The base station of claim 23, further comprising means for filtering the effective data rate.

28. The base station of claim 23, further comprising means for smoothing the forward link signal strength value using a filter.

29. The base station of claim 23, wherein the effective data rate is used to determine the forward link signal strength value for a period of time that is longer than a current slot.

30. The base station of claim 29, wherein the period of time includes the current slot plus a predetermined number of slots.

31. The base station of claim 29, wherein the effective data rate is used to determine the forward link signal strength value until a new data packet is received.

32. The base station of claim 24, further comprising means for increasing the forward link signal strength value if the data rate control information is directed at another sector of the base station.

33. The base station of claim 24, further comprising means for decreasing the forward link signal strength value if the data rate control information is directed at another base station.

34. A non-transitory computer-readable medium comprising instructions that are executable to:

determine that early-termination information is available;

use the early-termination information to determine an effective data rate;

use the effective data rate to determine a forward link signal strength value; and

determine a power allocation value for power control information that is transmitted from a base station to a remote station based on the forward link signal strength value.

35. The computer-readable medium of claim 34, wherein the instructions are also executable to receive data rate control information from the remote station, wherein the effective data rate is used instead of the data rate control information to determine the forward link signal strength value.

36. The computer-readable medium of claim 35, wherein the effective data rate is higher than a data rate that is requested by the remote station via the data rate control information.

37. The computer-readable medium of claim 34, wherein using the effective data rate to determine the forward link signal strength value comprises mapping the effective data rate to the forward link signal strength value via a look-up table.

38. The computer-readable medium of claim 34, wherein the instructions are also executable to filter the effective data rate.

39. The computer-readable medium of claim 34, wherein the instructions are also executable to smooth the forward link signal strength value using a filter.

40. The computer-readable medium of claim 34, wherein the effective data rate is used to determine the forward link signal strength value for a period of time that is longer than a current slot.

41. The computer-readable medium of claim 40, wherein the period of time includes the current slot plus a predetermined number of slots.

42. The computer-readable medium of claim 40, wherein the effective data rate is used to determine the forward link signal strength value until a new data packet is received.

43. The computer-readable medium of claim 35, wherein the instructions are also executable to increase the forward link signal strength value if the data rate control information is directed at another sector of the base station.

44. The computer-readable medium of claim 35, wherein the instructions are also executable to decrease the forward link signal strength value if the data rate control information is directed at another base station.