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Signal processing circuit and related device

A signal processing circuit and circuit technology, applied in the field of circuits, can solve problems such as inaccurate quantization accuracy

Pending Publication Date: 2022-04-12
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the signal exceeds the ADC input amplitude range of the analog-to-digital converter, the ADC will work in a saturated state, resulting in inaccurate quantization accuracy

Method used

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  • Signal processing circuit and related device
  • Signal processing circuit and related device
  • Signal processing circuit and related device

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Embodiment Construction

[0063] Embodiments of the present application provide a signal processing circuit and a related device. The input signal and output signal of the signal processing circuit are both analog signals, and the signal processing circuit performs folding processing on the input signal and then outputs it, so as to modulate the peak-to-average power ratio.

[0064] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used like this It can be interchanged under appropriate circumstances, and this is only to describe the distinguishing method adopted when describing the object of the same attribute in the embodiments of the application.In addition, the terms "comprising" and "having" and any deformation thereof are intended to be Covers a non-exc...

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Abstract

The embodiment of the invention provides a signal processing circuit and a related device. An input signal and an output signal of the signal processing circuit are analog signals, and the signal processing circuit performs folding processing on the input signal and then outputs the signal, so that the high peak-to-average power ratio of a modulation signal is reduced. The signal processing circuit directly realizes signal folding in an analog domain, so that the requirement on an analog-to-digital converter can be greatly reduced, and meanwhile, the amplifier can work in a high-efficiency region.

Description

technical field [0001] The present application relates to the field of circuit technology, in particular to a signal processing circuit and related devices. Background technique [0002] A new generation of mobile communication systems (such as fifth-generation (fifth-generation, 5G) communication systems) puts forward higher requirements on data transmission rates. In order to efficiently utilize spectrum resources, an Orthogonal Frequency Division Multiplexing (OFDM) technology for multi-carrier transmission may be used to implement parallel transmission of high-speed serial data. OFDM technology supports multi-user access and has strong anti-multipath capability. Since the OFDM signal is formed by the superposition of multiple subcarriers, when the subcarriers have the same or similar phases at a certain moment, it will cause a large peak power, resulting in a peak-to-average power ratio (peak-to-average power ratio, PAPR). [0003] The peak-to-average power ratio can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40
CPCH04B1/40
Inventor 张伟伟李旭吕毅博王天祥
Owner HUAWEI TECH CO LTD