Digital microwave transmission device and method

A digital microwave and transmission device technology, applied in optical fiber transmission, frequency modulation carrier system, optical fiber radio, etc., can solve the problems of lack of technical means, and achieve the effect of long transmission distance, strong anti-electromagnetic interference ability, and large capacity

Active Publication Date: 2013-11-20
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently a lack of corresponding technical means in this field

Method used

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  • Digital microwave transmission device and method
  • Digital microwave transmission device and method
  • Digital microwave transmission device and method

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Embodiment Construction

[0027] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0028] The present invention provides a device for transmitting broadband signals using optical fiber and microwave, which combines the advantages of optical fiber and microwave transmission. It is assumed that the device realizes the transmission of signals between two sites, which are denoted as site 1 and site 2. The system is in full-duplex mode, and the method of data transmission from site 1 to site 2 is the same as the method of data transmission from site 2 to site 1. like figure 1 As shown, the device includes the main unit MU (main unit) of the optical fiber radio and the remote unit (RU) (remote unit) of the optical fiber radio. One set is deployed at site 1 and site 2, respectively, marked as MU1, RU1 and MU2, RU2 . In a site, the sending and receiving signals and control signals between the main unit and the re...

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Abstract

The invention relates to a digital microwave transmission device and a digital microwave transmission method. The device comprises a main unit and a remote unit which are arranged at each station. The main unit and the remote unit at one station are connected through an optical fiber cable. Remote units between two stations are wirelessly connected. Each main unit comprises an interface processing unit, a main transmission link, a main receiving link, a main wavelength division unit and a remote control unit. Each remote unit comprises a remote wavelength division unit, a remote transmission link, a remote receiving link, a duplexer unit and an antenna unit. The main unit adopts digital modulation-demodulation and shaping filtering to convert user digital signals into optical signals which are transmitted through optical fibers. After the optical signals reach the remote unit, the optical signals are restored to radio-frequency signals which are converted into wireless signals through power amplification for transmission. The device provided by the invention has the advantages that the transmission distance is long, the cost is low, the main functions are completed on the main units, the power consumption of the remote units is low, and the problems that the transmission through optical fibers at complex terrains is inconvenient to realize and the loss of long-distance wireless transmission is great are solved.

Description

technical field [0001] The invention relates to the field of optical fiber transmission and microwave transmission, in particular to a device and method for simultaneously using optical fiber and microwave to transmit data. Background technique [0002] With the rapid development of mobile communication technology, the number of mobile users and the bandwidth requirements of users increase rapidly, which puts forward new requirements for the construction of base stations. The improvement of the data bandwidth of mobile users on the wireless channel often means the shortening of the distance of the wireless channel, the reduction of the coverage of the base station, and the rapid increase of the number of base stations; the rapid increase of the number of base stations also raises the cost and size of the base station high demands. Through optical fiber radio technology, complex data processing and signal conversion can be processed at the central station, and the baseband d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/2575H04L27/12H04L27/14
Inventor 刘永飘李军成江鹏穆罕默德·夏瑞扎尔·阿里亚思索非伊恩·穆萨·米塔里
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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