In the 5G era, wireless networks generally adopt the C-RAN station building mode, with centraliz ed deployment of DUs. Some 5G remote stations will share the same address as existing 4G remote st ations, and there is an urgent need for deep coverage base station forward transmission. Howeve r, the fiber optic direct drive forward transmission scheme faces a series of difficulties such as severe fiber resource consumption and expansion difficulties. As a one-stop solution service provider for optical communication, Starlink (Beijing) Telecommunications Technology Co., Ltd. has launched a 5G forward passive WDM solution for this purpose.

Program features

• Support CPRI 1~10 and eCPRI (10G/25G), compatible with STM-1/4/16/64, GE/1 0GE/25GE and other multi-service unified bearer, transparent transmission, maximize the value of fronthaul network

• Without changing the networ k structure, expanding the physical channel of pure transparent transmission, without introducing delay and jitter

• Modular configuration, 1:6/12/18 optional, can achieve multi-directional multi-level convergence, large-scale fiber saving

• A variety of color light modules can be provided, supporting CWDM 18 waves, MWDM 12 waves, and meeting various line power budget index requirements

• Pure passive working environment, reducing failure points, plug and play, no configuration, simple maintenance

• The passive wavelength division multiplexer is small and light, and supports multiple installation methods such as rack-mounted, wall-mounted, pole-mounted, etc.

Application scenario

• Mainly meet the needs of end point-to-point CRAN networking scenarios, the distance between DU and AAU sites is within 10km

• In areas where optical fiber resources are scarce, there are no pipeline resources and new optical fibers are laid unconditionally

• When limited by the construction period, it can be used as an emergency solution to temporarily solve the fiber problem