COMMUNICATION BASE STATION AND POWER AMPLIFICATION PROCESSING METHOD OF COMMUNICATION BASE STATION

• US 20120315947A1
• Filed: 08/10/2012
• Published: 12/13/2012
• Est. Priority Date: 12/06/2010
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: ZHANG, Shunqing, Xu, Shugong
• Granted Patent: US 8,472,997 B2
• Time in Patent Office: Days
• US Class Current: 455/522
• CPC Class Codes: H03G 3/3042 in modulators, frequency-changers, transmitters or power amplifiers transmission power control in bidirectional transmission systems H04W52/04
• CPC Class Codes: H04W 52/281 taking into account user or data type priority
• CPC Class Codes: H04W 52/52 using AGC [Automatic Gain Control] circuits or amplifiers

Abstract

A method for implementing power amplification processing includes: obtaining power amplifier feature information and service requirement information of a power amplifier, where the service requirement information includes requirement information of a real-time service and requirement information of a non-real-time service; determining a regulation parameter and a scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information; and performing, by the power amplifier, transmit power regulation according to the regulation parameter to obtain amplified transmit power.

Claims

1. A method for scheduling signal transmit power, comprising:

obtaining power amplifier feature information and service requirement information of a power amplifier, wherein the service requirement information comprises requirement information of a real-time service and requirement information of a non-real-time service;

determining a regulation parameter and a scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information; and

performing, by the power amplifier, transmit power regulation according to the regulation parameter to obtain amplified transmit power, wherein the amplified transmit power satisfies a requirement of traffic of the real-time service; and

scheduling, by the power amplifier, a service in the non-real-time service according to the scheduling parameter and allocating output power requirements of the non-real-time service to different time periods.

2. The method according to claim 1, wherein the power amplifier feature information indicates work efficiency of the power amplifier in a working state;

and the obtaining the power amplifier feature information comprises;

determining a corresponding relationship between input power and output power of the power amplifier according to an environmental parameter to obtain the power amplifier feature information, wherein the environmental parameter comprises ambient temperature or ambient humidity.

3. The method according to claim 1, wherein the power amplifier feature information indicates work efficiency of the power amplifier in a working state;

and the obtaining the power amplifier feature information comprises;

determining a corresponding relationship between input power and output power of the power amplifier according to a service parameter to obtain the power amplifier feature information, wherein the service parameter comprises a state of the power amplifier or a transmit bandwidth.

4. The method according to claim 1, further comprising:

determining a low efficiency critical value of the power amplifier according to the power amplifier feature information; and

wherein the determining the scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information comprises;

determining a scheduled non-real-time service in the non-real-time service, so that a sum of required values of output power of the real-time service and output power of the scheduled non-real-time service is not smaller than the low efficiency critical value of the power amplifier.

5. The method according to claim 1, wherein before the determining the regulation parameter and the scheduling parameter of the power amplifier to perform power amplification, further comprising:

determining a high efficiency critical value according to the power amplifier feature information; and

wherein the determining the scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information comprises;

determining a scheduled non-real-time service in the non-real-time service, so that a sum of required values of output power of the real-time service and output power of the scheduled non-real-time service is not greater than the high efficiency critical value.

6. The method according to claim 1, wherein the determining the regulation parameter and the scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information comprises:

determining the scheduling parameters to minimize a sum of the input power of the power amplifier, or minimize power consumption of the power amplifier, or minimize a peak-to-average ratio of the power amplifier; and

determining the regulation parameter of the power amplifier according to the service requirement information and the power amplifier feature information, so that the power amplifier at least satisfies the requirement of the traffic of the real-time service according to the amplified transmit power.

7. The method according to claim 6, wherein the determining the regulation parameter and the scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information comprises:

randomly generating a distribution for the non-real-time service;

calculating a sum of input power of the power amplifier, or power consumption of the power amplifier, or a peak-to-average ratio of the power amplifier when the non-real-time service is randomly distributed each time;

repeating a random distribution of the non-real-time service multiple times; and

respectively selecting a distribution situation in which the sum of the input power of the power amplifier, or the power consumption of the power amplifier, or the peak-to-average ratio of the power amplifier is minimized, so as to determine the regulation parameter and the scheduling parameter.

8. The method according to claim 1, wherein the regulation parameter and the scheduling parameter of the power amplifier are determined according to the service requirement information and the power amplifier feature information, so that the power amplifier works in an amplified region.

9. A communication base station, comprising:

a power amplifier and a power scheduling apparatus, wherein;

the power scheduling apparatus is configured to obtain power amplifier feature information and service requirement information of the power amplifier, and determine a regulation parameter and a scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information, wherein the service requirement information comprises requirement information of a real-time service and requirement information of a non-real-time service; and

the power amplifier performs transmit power regulation according to the regulation parameter to obtain amplified transmit power, wherein the amplified transmit power satisfies a requirement of traffic of the real-time service; and

the power amplifier schedules a service in the non-real-time service according to the scheduling parameter and allocates output power requirements of the non-real-time service to different time periods.

10. The communication base station according to claim 9, wherein the power scheduling apparatus comprises:

an information obtaining module, configured to obtain the power amplifier feature information and the service requirement information, wherein the service requirement information comprises the requirement information of the real-time service and the requirement information of the non-real-time service; and

a parameter adjusting unit, configured to determine the regulation parameter and the scheduling parameter of the power amplifier according to the power amplifier feature information and the service requirement information.

11. The communication base station according to claim 10, wherein the power amplifier feature information obtained by the information obtaining module indicates work efficiency of the power amplifier in a working state;

and the information obtaining module is configured to determine a corresponding relationship between input power and output power of the power amplifier according to an environmental parameter to obtain the power amplifier feature information, wherein the environmental parameter comprises ambient temperature or ambient humidity.

12. The communication base station according to claim 10, wherein the power amplifier feature information obtained by the information obtaining module indicates work efficiency of the power amplifier in a working state;

and the information obtaining module is configured to determine a corresponding relationship between input power and output power of the power amplifier according to a service parameter to obtain the power amplifier feature information, wherein the service parameter comprises a state of the power amplifier or a transmit bandwidth.

13. The communication base station according to claim 10, wherein the parameter adjusting unit is further configured to determine a low efficiency critical value according to the power amplifier feature information;

and further determine a scheduled non-real-time service in the non-real-time service, so that a sum of required values of output power of the real-time service and output power of the scheduled non-real-time service is not smaller than the low efficiency critical value of the power amplifier.

14. The communication base station according to claim 10, wherein the parameter adjusting unit is further configured to determine a high efficiency critical value according to the power amplifier feature information;

and further determine a scheduled non-real-time service in the non-real-time service, so that a sum of required values of output power of the real-time service and output power of a scheduled non-real-time service is not greater than the high efficiency critical value.

15. The communication base station according to claim 10, wherein the determining by the parameter adjusting unit the scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information comprises:

determining the scheduling parameter, so that a sum of input power of the power amplifier is minimized, or power consumption of the power amplifier is minimized, or a peak-to-average ratio of the power amplifier is minimized; and

determining the regulation parameter of the power amplifier according to the service requirement information and the power amplifier feature information, so that the power amplifier at least satisfies the requirement of the traffic of the real-time service according to the amplified transmit power.

16. The communication base according to claim 9, wherein the determining by the parameter adjusting unit the regulation parameter and the scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information comprises:

randomly generating a distribution for the non-real-time service;

calculating a sum of input power of the power amplifier, or power consumption of the power amplifier, or a peak-to-average ratio of the power amplifier when the non-real-time service is randomly distributed each time;

repeating a random distribution of the non-real-time service multiple times; and

respectively selecting a distribution situation in which the sum of the input power of the power amplifier, or the power consumption of the power amplifier, or the peak-to-average ratio of the power amplifier is minimized, so as to determine the regulation parameter and the scheduling parameter.