Overview

As 4G Deep coverage of wireless networks and 5G The gradual commercial deployment of the network, along with a massive influx 5G The demand for base station construction—along with the growing importance of reducing overall construction costs, minimizing base station infrastructure requirements, and enabling rapid site deployment—has become increasingly critical. At the same time, C-RAN Of the 5G The site-building model will significantly deplete fiber-optic resources such as in-building exit cables and backbone cables from access optical distribution points, leading to a growing demand for fiber optics—and presenting operators with new challenges.

Shanshui Guangdian closely follows market demands and has introduced various solutions, including passive wavelength division multiplexing (WDM) transport and semi-passive WDM transport. 5G The pre-transmission solution efficiently reuses existing optical cable resources, addressing the shortage of fiber optic cables for base station wireless fronthaul while also meeting the demands of diverse scenarios and challenging environments. RRU/AAU Expand the scope of our offerings to provide customers with low-cost, high-performance, and fast website-building products—along with a continuously evolving, comprehensive solution.

Scheme Topology

Passive Wavelength Division

This solution features a passive multiplexer/demultiplexer configured on both the DU/BBU side and the AAU/RRU side, along with the installation of color-coded optical modules. By utilizing a single-fiber optical link, wavelength division multiplexing is achieved—eliminating the need for additional transmission equipment or active devices. As a result, this approach significantly reduces cabling complexity and associated costs. Master   Manage fiber optic resources for optical cables.  

Semi-Active Wavelength Division

  This plan is located near DU/BBU Side-mounted active wavelength division equipment, in AAU/RRU Install a passive multiplexer/demultiplexer on the side, and mount the color-light module. Use single- or dual-fiber optical cables to achieve wavelength division multiplexing, while leveraging the central office's active equipment for effective monitoring of remote devices.

Key Features

Ultra-low cost

In comparison to   Network modernization involves repurposing multiple fiber optic lines into a single fiber for transmission, significantly conserving fiber resources and reducing business transmission costs.

Multiplexing

Achievable 1:6 、 1:12 Reuse as needed, selecting different convergence ratios based on the specific application scenario.

Easy to install

The device is compact, easy to install, and requires no data configuration—simply plug it in and start using.

Monitoring and Maintenance

Integrated protection and light   Functions like monitoring enhance network reliability [applicable only to semi-passive solutions].

Related Products

2U Chassis-Based Semi-Active WDM Equipment	5U Chassis-Based Semi-Active WDM Equipment
Combination and Division Dial	Combination and Division Dial