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Radio frequency passive optical network with broadband wireless and optical transmission amalgamation access

A passive optical network and broadband wireless technology, applied in optical fiber transmission, transmission system, optical fiber radio, etc., can solve problems such as anti-interference ability in blind areas, expand wireless coverage, reduce radio frequency optical conversion modules, and improve broadband service load effect of ability

Active Publication Date: 2009-01-14
WUHAN YANGTZE OPTICAL TECH
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to propose a radio frequency passive optical network RPON (Radio over PON, radio frequency passive optical network) that integrates broadband wireless and optical transmission. This technology combines wireless and PON (passive optical Network) The point-to-multipoint transmission characteristics of baseband services can solve the problems of blind spots and weak anti-interference capabilities (compared to optical fibers) during wireless access

Method used

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  • Radio frequency passive optical network with broadband wireless and optical transmission amalgamation access
  • Radio frequency passive optical network with broadband wireless and optical transmission amalgamation access
  • Radio frequency passive optical network with broadband wireless and optical transmission amalgamation access

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Embodiment Construction

[0014] The invention mainly studies the Radio over PON wireless radio frequency passive optical network technology and the optical fiber wired / wireless composite broadband access network system formed. The technical solutions considered are as follows:

[0015] The radio frequency passive optical network (RPON) integrated with broadband wireless and optical transmission is a network architecture that carries wireless services and optical fiber access networks. Its working principle is: the topology structure of the system is a passive optical network PON, which is a tree structure. The system's downlink service access point is the optical network terminal OLT, and the uplink service access point is the optical network unit ONU. The system can simultaneously access High-frequency wireless channel; the downlink signal of the system, including high-frequency optical carrier signal and baseband optical signal, are power distribution; the high-frequency optical carrier signal uplin...

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Abstract

The invention provides a radio passive optical network accessed by converging of broadband wireless and optical transmission. The invention comprises an optical line terminal, an optical network unit and an optical distribution network. The optical line terminal and the optical network unit are connected through the optical distribution network. The optical line terminal is installed with a wireless signal active modulating module and demodulating module, and the optical network unit is installed with a bilateral antenna, a wireless signal passive modulating module and demodulating module. The technology combines the point to several point-to-multipoint transmission characteristic of the wireless and PON baseband service, solves the problems of blind zone of wireless access and low interference killing feature (relative to optical fiber).

Description

technical field [0001] The invention relates to the field of optical fiber communication technology, wireless communication technology and computer network communication, in particular to a data transmission method combining passive optical fiber access network and wireless transmission technology. Background technique [0002] With the advent of the 3G (third generation mobile communication) era, wireless communication technology is developing from narrowband communication to broadband. When wireless access technologies such as 3G and WiMAX (Worldwide Interoperability for Microwave Access) are applied to the access of densely populated large communities or large buildings, they will face the problem of wireless coverage blind spots. The increase of relay equipment such as repeaters also means the increase of maintenance costs. Therefore, solving the problem of signal transmission and coverage area in wireless access is a promotion for the rapid development of wireless acces...

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Application Information

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IPC IPC(8): H04Q11/00H04B10/12H04B10/2575
Inventor 张传浩张利吴广生
Owner WUHAN YANGTZE OPTICAL TECH
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