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

A power amplifier and input power technology, applied in the field of communication, can solve the problems of not increasing the complexity of the production line, low-bandwidth and high-efficiency transmission performance, 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: 2022-01-28
SPREADTRUM COMM (SHANGHAI) CO LTD
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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

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

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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 method and device, a storage medium, and a terminal for determining input power of a power amplifier, the determining method comprising: determining a reference bandwidth parameter configuration and its associated reference input power, the reference bandwidth parameter configuration being calibrated for a reference bandwidth Parameter configuration; determine the bandwidth parameter configuration of other bandwidths, and determine the power compensation value associated with the bandwidth parameter configuration, the other bandwidth is a bandwidth other than the reference bandwidth; compare the power compensation value with the reference input power and, determine the input power associated with the bandwidth parameter configuration of the other bandwidth. The present invention can satisfy low-bandwidth high efficiency and high-bandwidth emission performance without increasing the complexity of the production line.

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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Patent Type & Authority Patents(China)
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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