Nokia XGS-PON

XGS-PON is a data transmission technology on fiber-optical networks of broadband access.

On June 20, 2017 Nokia announced implementation of a possibility of use of commercial networks of broadband access of generation PON (NG-PON) for a broadcast of flows Common Public Radio Interface (CPRI) with an ultralow delay on standard optical fiber between the centralized controller and remote radio units of base stations.

During tests the company could prove an opportunity to fulfill the requirements to the value of the cross-network delay provided in the commercial equipment Fronthaul for a radio communication that allowed to draw a conclusion on validity of use of the operating fiber-optical infrastructure for economic transportation of mobile traffic and the accelerated implementation of technologies 5G.

The Fronthaul technology is an element of architecture C-RAN (Centralized Radio Access Network is network with the centralized radio access), in which traffic handling is made on a centralized basis outside radio units of base stations. It helps operators to reduce energy consumption in cells, to simplify interaction between them, to increase capacity of networks and a coverage and to cut down expenses. In architecture of C-RAN the traditional CPRI radio interfaces and some of radio interfaces of Fronthaul require extremely short delay – often within millisecond shares that meets requirements of technologies 4G and 5G in locking range.

Specialists of Bell Labs Nokia proved that the technology of generation XGS-PON (X=10, G= of gigabits, S-PON= a symmetric passive optical network) is capable to meet requirements and to maintain necessary capacity at reducing costs of a transport component of a radio access in each cell of network of mobile communication. Systems work at XGS-PON technology over the existing network fiber-optical infrastructure and give the chance to operators to use platforms and GPON technologies for delivery of modern resource-intensive services.

Now operators do not need to develop separate network for each architecture. They can use the existing passive optical networks of FTTH/FTTB that quickly and economically to increase capacity and coverages to the level which is required by a cellular network with continuously growing density of users.

It is an important milestone in development of our industry and technology 5G. We for the first time showed that the PON network can effectively be used for support of very high capacity and a low delay. The flexibility of the PON technology capable to support at the level of Fronthaul both the traditional CPRI interfaces, and the new specifications of interfaces allowing to implement, for example, the Fronthaul configurations over normal packet networks of Ethernet is shown. Thus, solutions on the basis of PON technology showed the readiness for approach of an era of a 5G. Peter Vetter, the head of research of access networks in Bell Labs Nokia

I often say that the world becomes wireless, but wireless technologies become fixed. The demonstration which is carried out by specialists of Bell Labs Nokia once again proved case of this statement. It showed how technologies of the fixed access can be used for support of mobile transport. Mobile networks which transferred traffic from base stations to a network backbone using the selected transport networks earlier received an alternative in the form of the existing fiber-optical access networks. Huge capacity, scale and prevalence of fiber optic networks do them by the great base for support of technology 5G. Federico Guienne (Federico Guillén), the head of business group of the fixed Nokia networks

See Also

• 5G (fifth generation of mobile communication)
• Development of 5G networks in Russia
• LTE