METHOD FOR POWER CONTROL FOR MIXED VOICE AND DATA TRANSMISSION

• US 20100091791A1
• Filed: 10/09/2009
• Published: 04/15/2010
• Est. Priority Date: 01/24/2001
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Lundby, Stein A., Willenegger, Serge D.
• Granted Patent: US 8,160,031 B2
• Time in Patent Office: Days
• US Class Current: 370/465
• 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

Power control of mixed voice and data transmissions is disclosed. A voice signal is transmitted at a dynamically-adjusted voice transmit power capped at a maximum voice transmit power limit. Concurrently, data bursts are transmitted on top of the voice signal. Data noise is inserted between the data bursts transmissions. The data burst and inserted data noise are transmitted at a dynamically-adjusted data transmit power based on the voice transmit power to restrict the rate of change of the data transmit power until a maximum data transmit power limit is reached.

Claims

1. A method for power control of mixed voice and data transmissions, comprising:

transmitting a voice signal at a dynamically-adjusted voice transmit power capped at a maximum voice transmit power limit;

concurrently transmitting data bursts on top of the voice signal; and

inserting data noise between the data bursts transmissions, where the data burst and inserted data noise are transmitted at a dynamically-adjusted data transmit power based on the voice transmit power to restrict the rate of change of the data transmit power until a maximum data transmit power limit is reached.

2. The method of claim 1, wherein the dynamically-adjusted data transmit power is adjusted as a percentage of the dynamically-adjusted voice transmit power.

3. The method of claim 1, further comprising:

adding a voice noise at a voice noise power on top of the voice signal, the aggregate of the voice noise power and vice transmit power is substantially equal to the maximum voice transmit power limit.

4. The method of claim 1, wherein the maximum voice transmit power limit is dynamically-adjusted from a lower limit to an upper limit.

5. The method of claim 1, wherein the maximum voice transmit power limit is predetermined.

6. The method of claim 1, wherein the maximum voice transmit power limit is dynamically adjusted.

7. The method of claim 1, wherein dynamically-adjusted data transmit power increases from a minimum data transmit power limit to the maximum data transmit power limit.

8. The method of claim 1, wherein the dynamically-adjusted data transmit power decreases from the maximum data transmit power limit to a minimum data transmit power limit.

9. The method of claim 1, wherein the dynamically-adjusted data transmit power is adjusted by approximately 5% of the maximum voice transmit power limit at any one time.

10. The method of claim 1, wherein the dynamically-adjusted data transmit power is adjusted by between 0 and 15% of the maximum voice transmit power limit at any one time.

11. The method of claim 1, wherein the dynamically-adjusted data transmit power is adjusted by between 5 and 10% of the maximum voice transmit power limit at any one time.

12. An apparatus adapted for power control of mixed voice and data transmissions, comprising:

means for transmitting a voice signal at a dynamically-adjusted voice transmit power capped at a maximum voice transmit power limit;

means for concurrently transmitting data bursts on top of the voice signal; and

means for inserting data noise between the data bursts transmissions, where the data burst and inserted data noise are transmitted at a dynamically-adjusted data transmit power based on the voice transmit power to restrict the rate of change of the data transmit power until a maximum data transmit power limit is reached.

13. The apparatus of claim 12, wherein the dynamically-adjusted data transmit power is adjusted as a percentage of the dynamically-adjusted voice transmit power.

14. The apparatus of claim 12, wherein the maximum voice transmit power limit is dynamically-adjusted from a lower limit to an upper limit.

15. The apparatus of claim 12, further comprising:

means for adding a voice noise at a voice noise power on top of the voice signal, the aggregate of the voice noise power and vice transmit power is substantially equal to the maximum voice transmit power limit.

16. The apparatus of claim 12, wherein the maximum voice transmit power limit is predetermined.

17. The apparatus of claim 12, wherein the maximum voice transmit power limit is dynamically adjusted.

18. The apparatus of claim 12, wherein dynamically-adjusted data transmit power increases from a minimum data transmit power limit to the maximum data transmit power limit.

19. The apparatus of claim 12, wherein the dynamically-adjusted data transmit power decreases from the maximum data transmit power limit to a minimum data transmit power limit.

20. The apparatus of claim 12, wherein the dynamically-adjusted data transmit power is adjusted by approximately 5% of the maximum voice transmit power limit at any one time.

21. The apparatus of claim 12, wherein the dynamically-adjusted data transmit power is adjusted by between 0 and 15% of the maximum voice transmit power limit at any one time.

22. The apparatus of claim 12, wherein the dynamically-adjusted data transmit power is adjusted by between 5 and 10% of the maximum voice transmit power limit at any one time.

23. A method for power control of mixed voice and data transmissions, comprising:

transmitting a mixed signal at a total transmit power, the mixed signal including voice, data bursts, and inserted data noise, and the total transmit power is the aggregation of a voice transmit power and a data transmit power; and

dynamically-adjusting the total transmit power by limiting its rate of change over time by the insertion of the data noise.