Method for power control for mixed voice and data transmission

• US 7,602,750 B2
• Filed: 09/30/2005
• Issued: 10/13/2009
• Est. Priority Date: 01/24/2001
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Willenegger, Serge, Lundby, Stein
• Primary Examiner(s): Nguyen; Steven
• Application Number:
  US11/241,288
• Publication Number:
  US 20060029026A1
• Time in Patent Office: 1,474 Days
• Field of Search: 370/335, 370/342
• US Class Current: 370/335
• CPC Class Codes: H04B 2001/0416 having gain or transmission power control
• CPC Class Codes: H04W 52/26 using transmission rate or quality of service QoS [Quality of Service]
• CPC Class Codes: H04W 52/343 taking into account loading or congestion level
• CPC Class Codes: H04W 52/346 distributing total power among users or channels
• CPC Class Codes: H04W 52/36 with a discrete range or set of values, e.g. step size, ramping or offsets

Abstract

In a disclosed embodiment, a “voice noise power” is added to an aggregate voice power which is the total voice power used by all users in a cell. The voice noise power is transmitted in addition to the aggregate voice power in order to maintain the total of the aggregate voice power and voice noise power at a pre-determined voice power limit. In one embodiment, the voice power limit can be increased or decreased to further improve control over power consumption during voice and data transmission. Further, in order to maintain the power consumed by data transmission at a desired level, data noise is transmitted after transmission of a data burst, or in between data bursts, by inserting a pre-determined amount of artificial data into the gaps in data transmission. The data noise is transmitted in addition to the data bursts in order to maintain the total power consumed during data transmission at a desired level.

Claims

1. An apparatus comprising:

means for adding a voice noise power to an aggregate voice power such that a total of said voice noise power and said aggregate voice power is substantially equal to a voice power limit;

means for inserting a pre-determined amount of data noise after transmission of a data burst so as to maintain power consumed by data transmission at a desired level, wherein the voice noise power and the pre-determined amount of data noise are selected to limit power swings in a mixed voice and data channel below a desired threshold.

2. The apparatus of claim 1 further comprising means for increasing said desired level by a pre-determined amount during said data transmission.

3. The apparatus of claim 1 further comprising means for decreasing said desired level by a pre-determined amount during said data transmission.

4. The apparatus of claim 1 further comprising means for increasing said voice power limit by a pre-defined amount during said data transmission.

5. The apparatus of claim 1 further comprising means for decreasing said voice power limit by a pre-defined amount during said data transmission.

6. The apparatus of claim 2 wherein said pre-determined amount is between approximately 0% and approximately 15% of said voice power limit.

7. The apparatus of claim 3 wherein said pre-determined amount is between approximately 0% and approximately 15% of said voice power limit.

8. The apparatus of claim 4 wherein said pre-defined amount is between approximately 0% and approximately 15% of said voice power limit.

9. The apparatus of claim 5 wherein said pre-defined amount is between approximately 0% and approximately 15% of said voice power limit.

10. The apparatus of claim 1 wherein said adding said voice noise power comprises transmitting an orthogonally coded voice noise.

11. The apparatus of claim 1 wherein said inserting said pre-determined amount of said data noise comprises transmitting an orthogonally coded data noise.

12. The apparatus of claim 1 wherein said adding said voice noise power comprises transmitting a PN coded voice noise.

13. The apparatus of claim 1 wherein said inserting said pre-determined amount of said data noise comprises transmitting a PN coded data noise.

14. An apparatus comprising:

means for adding a voice noise power to an aggregate voice power such that a total of said voice noise power and said aggregate voice power is substantially equal to a voice power limit;

means for inserting a first amount of data noise after transmission of a data burst so as to maintain a total data transmission power at a fist level;

means for inserting a second amount of data noise following said first amount of data noise so as to reduce a total data transmission power to a second level, wherein said second level is less than said first level by a pre-determined amount, wherein the voice noise power, the first amount of data noise, and the second amount of data noise are selected to limit power swings in a mixed voice and data channel below a desired threshold.

15. The apparatus of claim 14 wherein said pre-determined amount is between approximately 0% and approximately 15% of said voice power limit.

16. The apparatus of claim 14 further comprising means for decreasing said voice power limit by a pre-defined amount.

17. The apparatus of claim 16 wherein said pre-defined amount is between approximately 0% and approximately 15% of said voice power limit.

18. The apparatus of claim 14 wherein said adding said voice noise power comprises transmitting an orthogonally coded voice noise.

19. The apparatus of claim 14 wherein said inserting said pre-determined amount of said data noise comprises transmitting an orthogonally coded data noise.

20. The apparatus of claim 14 wherein said adding said voice noise power comprises transmitting a PN coded voice noise.

21. The apparatus of claim 14 wherein said inserting said pre-determined amount of said data noise comprises transmitting a PN coded data noise.

22. An apparatus comprising:

means for adding a voice noise power to an aggregate voice power such that a total of said voice noise power and said aggregate voice power is substantially equal to a voice power limit;

means for inserting a pre-determined amount of data noise after transmission of a data burst so as to maintain power consumed by data transmission at a desired level;

means for adjusting said voice power limit by a pre-defined amount during said data transmission, wherein the voice noise power and the pre-determined amount of data noise are selected to limit power swings in a mixed voice and data channel below a desired threshold.

23. The apparatus of claim 22 wherein said adjusting comprises increasing said desired level by a pre-determined amount during said data transmission.

24. The apparatus of claim 22 wherein said adjusting comprises decreasing said desired level by a pre-determined amount during said data transmission.

25. The apparatus of claim 23 wherein said pre-determined amount is between approximately 0% and approximately 15% of said voice power limit.

26. The apparatus of claim 24 wherein said pre-determined amount is between approximately 0% and approximately 15% of said voice power limit.

27. The apparatus of claim 22 wherein said adding said voice noise power comprises transmitting an orthogonally coded voice noise.

28. The apparatus of claim 22 wherein said inserting said pre-determined amount of said data noise comprises transmitting an orthogonally coded data noise.

29. The apparatus of claim 22 wherein said adding said voice noise power comprises transmitting a PN coded voice noise.

30. The apparatus of claim 22 wherein said inserting said pre-determined amount of said data noise comprises transmitting a PN coded data noise.

31. An apparatus comprising:

means for adding a voice noise power to an aggregate voice power such that a total of said voice noise power and said aggregate voice power is substantially equal to a voice power limit;

means for inserting a first amount of data noise after transmission of a data burst so as to maintain a total data transmission power at a first level;

means for adjusting said voice power limit by a first pre-determined amount during said data transmission;

means for inserting a second amount of data noise following said first amount of data noise so as to reduce a total data transmission power to a second level, wherein said second level is less than said first level by a second pre-determined amount, wherein the voice noise power, the first amount of data noise, and second amount of data noise are selected to limit power swings in a mixed voice and data channel below a desired threshold.

32. The apparatus of claim 31 wherein said first pre-determined amount is between approximately 0% and approximately 15% of said voice power limit.

33. The apparatus of claim 31 wherein said second pre-determined amount is between approximately 0% and approximately 15% of said voice power limit.

34. The apparatus of claim 31 wherein said adding said voice noise power comprises transmitting an orthogonally coded voice noise.

35. The apparatus of claim 31 wherein said inserting said pre-determined amount of said data noise comprises transmitting an orthogonally coded data noise.

36. The apparatus of claim 31 wherein said adding said voice noise power comprises transmitting a PN coded voice noise.

37. The apparatus of claim 31 wherein said inserting said pre-determined amount of said data noise comprises transmitting a PN coded data noise.

38. An apparatus comprising:

means for adjusting a voice power limit by a first pre-determined amount in response to a change in usage;

means for adding a voice noise power to an aggregate voice power such that a total of said voice noise power and said aggregate voice power is substantially equal to said voice power limit;

means for inserting a first amount of data noise after transmission of a data burst so as to maintain a total data transmission power at a first level;

means for inserting a second amount of data noise following said first amount of data noise subject to a condition relating an amount of data transmitted in said data burst to said first amount of data noise so as to adjust said total data transmission power to a second level, wherein said second level differs from said first level by a second pre-determined amount, wherein the voice noise power, the first amount of data noise, and second amount of data noise are selected to limit power swings in a mixed voice and data channel below a desired threshold.

39. The apparatus of claim 38 wherein said adjusting said voice power limit comprises increasing said voice power limit by said first pre-determined amount when said usage increases.

40. The apparatus of claim 38 wherein said adjusting said voice power limit comprises decreasing said voice power limit by said first pre-determined amount when said usage decreases.

41. The apparatus of claim 38 wherein said condition relating an amount of data transmitted in said data burst to said first amount of data noise is that said amount of data transmitted in said data burst comprises at least 95% of said total data transmission power, and wherein said adjusting comprises increasing said total data transmission power by said second pre-determined amount to said second level.

42. The apparatus of claim 38 wherein said condition relating an amount of data transmitted in said data burst to said first amount of data noise is that said amount of data transmitted in said data burst comprises no more than 50% of said total data transmission power, and wherein said adjusting comprises decreasing said total data transmission power by said second pre-determined amount to said second level.

43. The apparatus of claim 38 wherein said first pre-determined amount is between approximately 0% and approximately 15% of said voice power limit.

44. The apparatus of claim 38 wherein said second pre-determined amount is between approximately 0% and approximately 15% of said voice power limit.