Complementary-multiplicative power compensation method, device and communication equipment

Abstract

The invention relates to the technical field of mobile communication and provides a complementary-multiplicative power compensation method. The method comprises the following steps of: acquiring a detecting voltage of a power amplifier and an expected power voltage indicating an expected output power of communication equipment; comparing the detecting voltage of the power amplifier with the expected power voltage, and outputting a comparing result to an adjustable attenuator; and adjusting the transmitting power outputted to the power amplifier by the adjustable attenuator according to the comparing result. The invention also provides a complementary-multiplicative power compensation device and communication equipment. By using the complementary-multiplicative power compensation method and device or the communication equipment, the communication equipment can operate under the requirements on a large temperature range and a wide frequency band, and the transmitting power can keep stable.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a complementary enhanced power compensation method, device and communication equipment. Background technique [0002] With the continuous development of technology, mobile phones, data cards, wireless broadband, multi-mode terminals, WiMAX (Worldwide Interoperability for Microwave Access, global microwave interconnection) and LTE (Long Term Evolution, long-term evolution) and other standard communication equipment have been Has a greater popularity. [0003] Communication equipment needs to perform power compensation when transmitting signals to meet the requirements of power stability and avoid high transmission power, which will cause the product to fail if the radiation standard is exceeded; or low transmission power will affect product performance and coverage. [0004] The ambient temperature does not have to be a constant temperature, but can also be h...

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Problems solved by technology

[0009] However, when transmitting high power in a wide frequency band in a high and low temperature environment, the gain deviation of the device is likely to be large due to the inconsistency of the gain frequency response of the device; and the operating bandwidth of individual devices is critical, and the power offset is large in the high and low temperature environment, which will lead to high frequency points or low frequency The point deviation is larger than that of the general frequency point, which makes the temperature and gain response trends different, and the control of the transmission power of the communication equipment is relatively strict. Therefore, it is difficult to use the look-up table method to ensure that the power fluctuation of the whole frequency band meets the requirements, and it is difficult to meet the communication requirements. Requirements for device power stability

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