Method as well as device and system for adjusting working voltage of multi-carrier power amplifier

Abstract

The invention discloses a method for adjusting the working voltage of a multi-carrier power amplifier, which comprises the following steps: counting the telephone traffic within the extent of jurisdiction of the multi-carrier power amplifier in a latest period of time according to a preset time interval; determining the working voltage required by the multi-carrier power amplifier for bearing the telephone traffic according to a preset configuration file, wherein the configuration file comprises a corresponding relation between a telephone traffic value and a working voltage threshold value; and adjusting the currently used working voltage of the multi-carrier power amplifier according the determined working voltage, thus, the working voltage of the multi-carrier power amplifier can be dynamically adjusted according to the change of the telephone traffic so as to ensure that an obvious difference value cannot appear between the currently used working voltage of the multi-carrier power amplifier and output signal peak value voltage so as to greatly reduce the power loss, improve the power efficiency of the multi-carrier power amplifier, further save the electric energy to a large degree and avoid the resource waste. The invention simultaneously discloses an adjustment device, a multi-carrier base station and a communication system.

Description

technical field [0001] The invention relates to the communication field, in particular to a method, device and system for adjusting the working voltage of a multi-carrier power amplifier. Background technique [0002] With the continuous development of mobile communication technology, the number of mobile users is increasing rapidly, and the traffic volume in each cell in mobile communication systems (such as GSM system, WCDMA system, CDMA 2000 system, etc.) also increases significantly. In a cell with a large amount of traffic, the capacity of a single-carrier base station can no longer meet the communication requirements, so multi-carrier base stations are applied to mobile communication systems. The multi-carrier base station performs multi-carrier modulation in the baseband, and amplifies the radio frequency power of the multi-carrier signal through an internal power amplifier. [0003] Usually, the social activities of mobile users have certain regularity, so the traff...

AI Technical Summary

Problems solved by technology

Under the prior art, the multi-carrier power amplifier uses a fixed working voltage, which is configured based on the demand of the maximum traffic volume (that is, the maximum number of carriers), and will not change with the traffic volume; then, When the current traffic volume is lower than the maximum traffic volume, the difference between the operating voltage of the multi-carrier power amplifier and the peak voltage of the output signal will appear, thus causing power loss to a certain extent and reducing the power of the multi-carrier power amplifier Efficiency, which in turn causes a great deal of waste of electric energy

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