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DWDM Network System

5G commercial, bearer first. With the accelerated deployment of 5G networks, as one of the basic carriers of the entire 5G industry, the demand for 5G fronthaul networks is becoming stronger. In the 5G era, the radio access network is mainly based on the C-RAN architecture, DU is deployed in a centralized manner, and multiple AAUs are connected through the fronthaul network. The fronthaul solutions considered by C-RAN are mainly optical fiber direct drive, passive WDM and active OTN solutions, which have problems such as high fiber resource consumption, no control and high cost; Xintai Communication is committed to building a high-quality 5G fronthaul network, It is the first to launch a 5G fronthaul semi-active solution, which improves the reliability of the network and also improves the manageability and operation and maintenance of the fronthaul network.


5G fronthaul semi-active solution

5G Fronthaul Semi-Active WDM Solution


Program features

  • Support CPRI 1~10 and eCPRI (10G/25G), compatible with STM-1/4/16/64, GE/10GE/25GE and other multi-service unified bearer, transparent transmission, maximize the value of fronthaul network
  • 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
  • Support optical layer 1:1 protection, protection switching time is less than 50ms, improving network reliability
  • Supports graphical interface network management, reconstructs wireless and transmission management domains, and realizes full monitoring of optical module and line status
  • The active WDM equipment at the central office supports AC 220V and DC -48V power supply options, 1+1 power input protection, and the equipment power failure does not affect business transmission
  • Remote passive WDM has outdoor deployment capabilities and flexible deployment locations

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 is no pipeline resources, and new optical fibers are laid unconditionally
  • Build a high-quality fronthaul network to support 5G high-reliability business needs


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