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Method and device for determining input power of power amplifier, storage medium and terminal

A power amplifier and input power technology, applied in the field of communication, can solve the problems of low bandwidth and high efficiency transmission performance without increasing the complexity of the production line, and achieve the effect of increasing the complexity of the production line, reducing the transmission performance, and reducing the cost of the production line

Active Publication Date: 2020-06-16
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Claims
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Problems solved by technology

[0005] The technical problem solved by the present invention is how to meet the high efficiency of low bandwidth and the emission performance of high bandwidth as far as possible without increasing the complexity of the production line

Method used

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  • Method and device for determining input power of power amplifier, storage medium and terminal
  • Method and device for determining input power of power amplifier, storage medium and terminal
  • Method and device for determining input power of power amplifier, storage medium and terminal

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Embodiment Construction

[0022] As mentioned in the background technology, in the prior art, either all bandwidths use the same configuration, the disadvantages are high complexity, high cost, and poor performance of production line calibration; or different configurations are used for different bandwidths, the disadvantages are low emission accuracy and complex production line calibration The higher the degree, the higher the cost.

[0023] In practical applications, uplink devices (for example, power amplifiers) need to provide different gain configurations for different bandwidths. For example, in a long-term evolution (Long Term Evolution, LTE for short) transmission system, the power amplifier provides a configuration (for example, a low configuration) when non-carrier aggregation, category 4 (Cat4) requirements, and bandwidth are less than or equal to 20 MHz; When carrier aggregation, uplink 2 subcarriers, and bandwidth are greater than 20MHz but less than or equal to 40MHz, another configuratio...

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Abstract

A power amplifier input power determination method and device, a storage medium and a terminal. The method comprises the steps: determining a reference bandwidth parameter configuration and a reference input power associated therewith, wherein the reference bandwidth parameter configuration is a calibrated parameter configuration for a reference bandwidth; determining bandwidth parameter configuration of other bandwidths, and determining a power compensation value associated with the bandwidth parameter configuration, wherein the other bandwidths are bandwidths other than the reference bandwidth; and determining the sum of the power compensation value and the reference input power to configure the associated input power for the bandwidth parameters of the other bandwidths. According to theinvention, on the premise of not improving the complexity of a production line, the low-bandwidth high efficiency and high-bandwidth emission performance can be satisfied.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to a method and device for determining input power of a power amplifier, a storage medium, and a terminal. Background technique [0002] In a multi-bandwidth system, in order to improve the transmission performance of bandwidth signals, the power amplifier (Power Amplifier, referred to as PA) needs to provide a higher average power tracking (Average Power Tracking, referred to as APT) supply voltage and power amplifier bias (PA bias) configuration, it will also bring more current, which will reduce the transmission efficiency of the power amplifier. [0003] Under different APT supply voltages and PAbias configurations, the PA has different gains. In a communication system, in order to obtain accurate transmission power, the output power of the transmitter needs to be calibrated, and the calibration can be performed on the production line. [0004] There are two...

Claims

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Application Information

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IPC IPC(8): H04B17/11
CPCH04B17/11
Inventor 金煜峰李晓丽刘入忠
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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