IP AND OPTICAL NETWORK
Overview
The new generation of IP and optical networks shall meet the requirements of large bandwidth, dynamic allocation, and network intelligence. The development of the IP aggregation network is mainly to meet the network convergence IP forwarding requirements of fixed line network and 5G mobile network, while the optical network focuses on metro and backbone high-speed transmission (including submarine communication cable systems for off-shore islands), for the purpose of long-distance and ultra-high-speed transmission like 400G network interface.Adapting to the diversity of application-specific requirements in 5G , TL investigates the following research directions about IP aggregation and optical transmission networks: (1) The Integration of mobile fronthaul (MFH) and mobile backhaul (MBH) by making use of the existing optical cables, to save the optical resource and leverage the resource efficiency. (2) To keep up with the international trends in open optical networking and decoupling techniques. (3) To meet the accurate time synchronization and high bandwidth transmission demands of 5G base stations, the new generation of IP aggregation networks shall include new time synchronization techniques, and push near to the client side according to customer and service needs. (4) To cope with the trend of network intelligence, software-defined networking technology in transport networks, to achieve the dynamic resource allocation and thus leverage network resource efficiency
The new generation of IP aggregation and optical networks would be towards intelligence and automation. These two kinds of networks will cooperate together to satisfy the transmission requirement of fixed and mobile networks. This is important to keep up with international standards and new technology and make sure the network evolution progress smoothly with stable and mature technologies.
IP AND OPTICAL NETWORK
CORE TECHNOLOGY
- 5G transport technology
- Open Optical Networking and Decoupling Techniques
- Time-Frequency Synchronization Techniques
- SDN (Software-Defined Networking) Controlling Technology
Cooperated IP and Optical Neworks
IP AND OPTICAL NETWORK
Application Status
5G transport network technology： Applying the WDM(Wavelength Division Multiplexing) to 5G fronthaul networks to expand the optical fiber capacity, thus to reduce the amount of used optical fibers and cost down the network setup when deploying the 5G base stations.
Open Optical Networking and Decoupling Techniques：Conducting PoC (Proof of Concept) tests on open optical networking solutions with domestic and international vendors, also promoting the open optical networking infrastructure including end-to-end optical transmission.
Time-Frequency Synchronization Techniques：Developing the remote Time-Frequency Synchronization measuring module and a system for monitoring the precision of remote devices’ time synchronization, to guarantee the QoS (Quality of Service) of the 5G network.
SDN (Software-Defined Networking) Controlling Technology：Developing the IP WAN SDN Controller, which applies to IP networks for intelligent management and 5G network slicing.
14 related patents owned