Where is the 5G NSA fronthaul used?
5G NSA (Non-Standalone Access) is a solution for 5G networks where the network is supported by the existing 4G facilities, which allows operators to leverage their existing network assets rather than deploying a completely new end-to-end 5G network. The co-locate base stations all have a large number of optical fiber, Passive WDM solution can maximize the utilization efficiency of existing optical fiber. Add value to the fiber network and reduce access costs. It is a construction method that needs to be considered when building 5G fronthaul.

There are two main Passive WDM solutions for 5G fronthaul:

  • 6CH Passive WDM

    6 channel solution

    • 12CH Passive WDM

      12 channel solution

      Each base station requires different wavelengths; here are some Passive WDM application scenarios of 5g fronthaul.

      • Scenario 1

      Solution 1

      Products for this Scenarios include: 6ch CWDM mux demux * 2 and 25G colored modules * 6

      • Scenario 2

      Solution 2

      Products for this Scenarios include: 6ch CWDM mux demux * 2 and 25G colored modules * 6

      • Scenario 3

      Solution 3

      Products for this Scenarios include: 6ch CWDM mux demux * 2 and 10G colored modules * 6 (Cost lower than scenario 2)

      • Scenario 4

      Solution 4

      Products for this Scenarios include: 6ch CWDM mux demux * 4, 10G colored modules * 6 and 25G colored modules * 6

      • Scenario 5

      Solution 5

      Products for this Scenarios include: 12ch CWDM mux demux * 4, 10G colored modules * 6 and 25G colored modules * 6

      There are other combinations, which are not listed here. In short, the main purpose of using passive WDM is to reply the existing core and reduce the core occupation. This option is most popular for mobile operators looking to quickly deploy 5G speeds utilizing existing LTE deployments. However, NSA does not allow for true 5G NR features, such as Network Slicing, URLLC and high capacity support for IoT, such as mMTC.

       

      10g25g5g5g fronthaulNsa

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