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Transmitter and signal transmission method

一种发射器、数字信号的技术，应用在信号传送领域，能够解决发射器频谱增生等问题，达到减缓频谱增生的效果

Inactive Publication Date: 2016-06-08
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a transmitter and a signal transmission method to solve the problem of spectrum growth of the above-mentioned transmitter

Method used

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  • Transmitter and signal transmission method
  • Transmitter and signal transmission method
  • Transmitter and signal transmission method

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Embodiment Construction

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

[0020] Certain terms are used in the present description to refer to particular components. Those skilled in the art should understand that manufacturers may use different terms to refer to the same component. This manual does not use the difference in name as a way to distinguish components, but uses the difference in function of components as a basis for distinction. "Includes" mentioned throughout the specification is an open-ended term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" in this specification includes any direct and indirect means of electrical connection. Therefore, if it is described that a first device is coupled to a second device, it means that the first device can be directly connected to...

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Abstract

The invention provides a transmitter and a signal transmission method. The transmitter includes a shaping unit and a digital-to-analog converter. The shaping unit digitally shapes a digital signal. The digital-to-analog converter converts the shaped digital signal into an analog signal. The shaping unit reduces the energy of the edges of the in-band portion of the frequency spectrum of the digital signal to reduce spectral growth of the analog signal occurring after the digital-to-analog converter. The invention is able to mitigate spectral growth on the output of the transmitter.

Description

technical field [0001] The present invention relates to a signal transmission method, and in particular to a transmitter using the above signal transmission method to mitigate spectral re-growth. Background technique [0002] In existing communication systems, due to the nonlinear characteristics of the transmitter path, spectral growth may appear on the output signal of the power amplifier in the transmitter. Spectral growth becomes more severe as the required output power of the transmitter increases. The presence of spectral growth results in a spectrum at the output that violates the transmitter's specifications. Due to the problem of spectral growth, the transmission quality of the transmitter may be substandard. [0003] Therefore, it is desirable to come up with a solution that slows down the spectral growth on the output of the transmitter. Contents of the invention [0004] In view of this, the present invention provides a transmitter and a signal transmission ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04L27/26
CPCH04L25/03853H03F1/3241H04L27/2626H04L27/26265
Inventor 陈国豪卢彦硕
Owner MEDIATEK INC