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A modulation and demodulation method and communication system based on ebpsk

A modulation method and a modulated signal technology, which are applied in the field of extended binary phase shift keying modulation and demodulation methods and communication systems, and can solve the problem of high requirements for signal sampling, storage and processor performance, and inability to achieve cost control, etc. problem, to achieve the effect of suppressing carrier leakage, suppressing signal leakage, and saving system power consumption

Active Publication Date: 2021-05-04
SANECHIPS TECH CO LTD
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Problems solved by technology

However, the existing EBPSK modulation and demodulation usually needs to be implemented in a digital way, which still has high requirements for signal sampling, storage and processor performance, and it is still unable to achieve ideal cost control.

Method used

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  • A modulation and demodulation method and communication system based on ebpsk
  • A modulation and demodulation method and communication system based on ebpsk
  • A modulation and demodulation method and communication system based on ebpsk

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Embodiment Construction

[0077] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0078] figure 1 It is an overall block diagram of the EBPSK communication system according to the present invention. Including, for example, an EBPSK-based transceiver (Transceiver) includes a transmitter chain and a receiver chain, and also includes a radio frequency front end. compared to figure 2 As shown in the block diagram of the existing conventional narrowband Internet of Things terminal system, in the present invention, the memory and the processor are integrated in the transceiver, which can realize simple data storage and data processing according to the characteristics of the narrowband Internet of Things, and make the best use of things as much as possible. , to ...

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Abstract

An EBPSK-based modulation and demodulation method and communication system suitable for narrowband Internet of Things, including a transceiver designed based on a CMOS process and a corresponding radio frequency front end. Different from the existing design, the present invention utilizes the characteristic of small amount of data in the narrow-band Internet of Things, and integrates the data memory and the processor into the transceiver. Reduce the power consumption and cost of digital baseband chips, analog baseband chips and general memory chips in existing terminal systems. At the same time, the use of active devices is limited in the receiver link and transmitter link of the present invention, and the closed-loop parameter adjustment of each module in the receiver link and transmitter link in the transceiver integrated machine is carried out by the processor to achieve modulation and demodulation. Tuning performance is optimal. Further reduce system power consumption and reduce circuit cost.

Description

technical field [0001] The invention relates to the technical field of modulation and demodulation, in particular to an extended binary phase shift keying (Extend Binary Phase Shift Keying, EBPSK) modulation and demodulation method and a communication system. Background technique [0002] As the most rapidly developing technology field in the world today, mobile communication is moving forward from the connection between people and people, to the connection between people and things and between things. The Internet of Everything has become an inevitable trend and has an extremely broad market prospect. [0003] However, based on the current mobile network, whether it is 2G / 3G / 4G or the upcoming 5G, it is insufficient in the connection between things, or there is a large waste of resources and technologies and defects. But it has to be said that, in fact, compared with short-range communication technologies such as Bluetooth and ZigBee, mobile cellular networks have their uni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/20H04B1/04H04B1/16H04B1/40
CPCH04B1/04H04B1/16H04B1/40H04L27/20
Inventor 朱立成
Owner SANECHIPS TECH CO LTD
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