Method and equipment for controlling power of personal hand held phone system

Abstract

The method includes steps: obtaining coefficient of temperature compensation from ambient temperature and empirical value; using the coefficient to control amplitude of baseband signal, and further to control emission power of system. The equipment includes module of temperature collection and processor, module for processing code element in baseband, digital up converter, and D / A converter. The invention implements power control at base band, providing high precision for temperature compensation of power. Moreover, the invention removes complicated compensation circuit in radio frequency so as to simplify system and reduce cost. Features are: easy controlled flexible adjustment of step size, reduced interference between systems, raised system capacity etc.

Description

technical field

[0001] The invention relates to a method for realizing power control of a personal handheld telephone system (PHS system) wireless communication base station equipment. Background technique

[0002] For wireless communication equipment, with the change of ambient temperature, the output power is easy to fluctuate, and the fluctuation range is often large, which cannot meet the requirements of system design. Therefore, it is usually necessary to implement temperature compensation in the radio frequency power control circuit to ensure that the output power of the device remains relatively stable within a large temperature range. Some power control temperature compensation circuits are implemented in the radio frequency part, using temperature sensitive circuits to measure the external temperature, obtaining corresponding temperature compensation signals according to temperature changes, and outputting them to the automatic power control circuit to change the ou...

Images