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A Broadband Multi-Service Transceiver System Based on Zero-IF Chip

A zero-IF, transceiver technology, applied in the field of broadband multi-service transceiver systems, can solve the problems of poor scalability, high energy consumption, and high cost, and achieve the effects of reducing hardware costs, reducing system energy consumption, and reducing system volume

Active Publication Date: 2020-04-10
BEIJING INST OF AEROSPACE CONTROL DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem solved by the technology of the present invention is: to overcome the deficiencies of the prior art, provide a broadband multi-service transceiver system based on a zero-IF chip, and solve the problems of high energy consumption, high cost, large volume, and poor scalability

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  • A Broadband Multi-Service Transceiver System Based on Zero-IF Chip
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  • A Broadband Multi-Service Transceiver System Based on Zero-IF Chip

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Embodiment Construction

[0040] A broadband multi-service transceiver system based on a zero-IF chip according to the present invention uses 4 zero-IF chips, uses a simple hardware platform, and realizes 14-way radio frequency transceiver functions through software design and configuration, and can adopt dynamic real-time The configurable technology customizes each service frequency band on demand to adapt to different application scenarios.

[0041] The supported RF service frequencies and corresponding zero-IF modules are shown in Table 1.

[0042] Table 1

[0043]

[0044] Such as figure 1 The described broadband multi-service transceiver system based on a zero-IF chip is mainly composed of a zero-IF digital-to-analog conversion module, a clock module, and a signal processing module, wherein the zero-IF digital-to-analog conversion module, each zero-IF digital-to-analog conversion module Receive the broadband baseband signal sent by the signal processing module, convert the broadband baseband ...

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Abstract

The invention discloses a broadband multi-service transceiver system based on a zero-intermediate frequency chip. The system comprises a zero-intermediate frequency digital-to-analogue conversion module, a clock module and a signal processing module; the a zero-intermediate frequency digital-to-analogue conversion module realizes the conversion between radio frequency signals and baseband signalsin the signal processing module; and the signal processing module processes and packs multiple paths of the baseband signals. The invention provides a multi-carrier combining and shunting method basedon digital resampling. The multi-carrier combining method comprises the steps of converting the rate of each path of the baseband signal, performing digital frequency conversion, performing digital combination and modulating the signal into the broadband baseband signal, and sending the broadband baseband signal into the zero-intermediate frequency module to perform radio frequency modulation. The multi-carrier shunting method comprises the steps of performing band-wise digital frequency conversion to the broadband baseband signal received by the zero-intermediate frequency module, and converting the rate of each shunted baseband signal. The system provided by the invention is good in expansibility; and the frequency band supported by the system can be changed by configuring the frequencypoints.

Description

technical field [0001] The invention belongs to the technical field of digital communication, and in particular relates to a broadband multi-service transceiver system based on a zero-IF chip. Background technique [0002] With the rapid development of wireless communication technology, the transceiver plays a key role in the wireless communication process. It mainly converts the high-frequency signal received by the antenna into a low-frequency signal through power amplification, image suppression, filtering, and frequency conversion. Perform digital processing for the back end, or convert and amplify the baseband signal into a high-frequency signal emitted by the antenna. RF transceivers are developing towards multi-service, low power consumption, low cost, and small size. However, most of the current multi-service transceivers implement multi-service functions by simply duplicating single-service hardware links. The main problems of this type of transceiver are high cost...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/00H04B1/40H04B1/58H04W56/00
CPCH04B1/0007H04B1/005H04B1/40H04B1/58H04W56/001
Inventor 李文陈爱新陈远航刘晓滨姚宜东王杰
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES