For 5G commercial use, 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 and stronger. In the 5G era, the radio access network is mainly based on the C-RAN architecture, and the DU is deployed in a centralized manner, and multiple AAUs are connected through the fronthaul network. The main characteristics of the services to be provided by the 5G network include large bandwidth, low latency, and massive connections, which put forward new requirements for the bearer network in terms of bandwidth, capacity, latency, and networking flexibility. The traditional C-RAN 5G bearer network is mainly an optical fiber direct drive solution, which has problems such as large consumption of optical fiber resources, high cost, and inconvenient management and control; HTF is committed to building high-quality 5G fronthaul networks, 5G midhaul networks, and 5G backhaul Network, HTF launched the passive wavelength division + color light module solution, semi-active OLP protection solution, WDM/OTN active solution, which solved the large bandwidth and low delay requirements of the 5G bearer network, and improved the reliability of the network. At the same time, it also improves the manageability and operability of the fronthaul network.
5G Fronthaul Passive WDM Solution
Program features:
Through the color light module, the wavelength of the receiving and receiving light of each channel is staggered, and the signals of multiple wavelengths are combined into one fiber core for transmission by using the multiplexer and demultiplexer;
Use six wavelength channels from 1271nm to 1371nm;
Passive operation, no additional failure points, easy to operate and maintain;
Quick installation, no debugging, no power supply, plug and play;
Compatible with various speeds and arbitrary protocol services below 10G, with strong versatility;
OTN-based 5G midhaul/backhaul bearer solution
This method uses WDM/OTN to realize 5G fronthaul, midhaul, and 5G backhaul, and realize the aggregation and forwarding of big data services;
WDM/OTN meets the demand of 5G bearer for large-capacity bearer, and meets the high-speed interfaces such as 25GE, 50GE, and 100GE introduced by IPRAN;
The multiplexing and transparent transmission of multiple services at multiple sites saves a lot of fiber resources.
It supports OAM functions such as optical layer and electrical layer performance and fault detection, and can provide network protection to ensure high reliability of services.
WDM/OTN is a transmission technology, which naturally has the characteristics of large bandwidth and low delay, and can transmit all services at the same time with low delay.
It supports dual-routing 1+1 protection, and the service will not be interrupted due to the time delay difference between the main and backup routes during protection switching.
