Smart network expansion

Smart network expansion

Today, many people regard fast and secure communication networks as a necessity, some even as given. Data-intensive content associated with streaming or entertainment services becomes more and more important in the use of the Internet. Internationally, mobile data communication is currently growing by 45 % annually. The A1 Telekom Austria Group is accounting for the dynamic increase in data volumes transported via its networks through extensive investment.

Intelligent NetworkTo be able to keep managing the hugely growing data volumes in an efficient way, the Group has relied on convergence in the expansion of its network infrastructure for years. Apart from LTE expansion (Long-Term Evolution) in the mobile communication network, it currently pushes the massive expansion of its fibre optic network. Thus, it can on the one hand supply even remote regions with high bandwidths and on the other hand utilise the capacity and stability advantages of the landline network.

Fixed-line broadband expansion

Fixed-line broadband expansion is being driven forward by the fibre roll-out in the form of FTTC, FTTB and FTTH (see graphic).

In addition to bringing fibre closer to the customer, the performance of remaining copper lines is being increased by combining the noise cancellation technology vectoring with transmission technologies such as VDSL2 and, with target transmission rates of several 100 Mbps for medium line distances. typically provides data rates of approx. 500 Mbps.

Fibre Roll-Out
Fibre roll-out in the form of FTTC, FTTB and FTTH

Mobile network expansion

The A1 Telekom Austria Group offers the LTE (long-term evolution) mobile communications standard in Austria, Bulgaria, Croatia, Slovenia, the Republic of Serbia and the Republic of Macedonia. The accelerated roll-out of LTE Advanced in 2017 led to a significant improvement in the supply of high-speed mobile Internet in Austria, Croatia, Slovenia, the Republic of Serbia and the Republic of Macedonia.

In order to achieve even faster mobile Internet, the A1 Telekom Austria Group is using LTE Carrier Aggregation with 256 QAM, a complex modulation technique, at selected locations in Austria, Croatia and the Republic of Serbia, enabling data rates of up to 400 Mbps.

In Slovenia, the use of 4×4 MIMO (multiple input multiple output) during a field test produced data transmissionrates of over 850 Mbps. Carrier Aggregation, complex modulation techniques and massive MIMO will also play a key role in 5G since these serve as a technological basis for high bandwidths and the particularly efficient use of available frequency bands.

Data centres: 3rd infrastructure pillar

State-of-the-art, highly secure data centres will continue to become more important going forward. Which is why they form the third pillar of the A1 Telekom Austria Group’s infrastructure, alongside mobile and fixed-line networks. The following technological developments are playing an important role in this respect:

▸ Network function virtualisation (NFV) can be operated in IT data centres with higher agility and cost-efficient, commercial off-the-shelf hardware.
▸ Growing customer demand for cloud-based solutions (e. g. SaaS, PaaS, IaaS) via secure, local data centres.
▸ Applications like the ‘Internet of Things’ (IoT), Advanced Analytics and 5G develop their full potential through edge computing.

Applications with a huge amount of processing power are run in as close proximity as possible to the site where the service is provided in local or regional data centres.

Combined Annual Report

The digital journey continues

Online Report


Petra Gallaun

Irene Jakobi

Head of CSR
A1 Telekom Austria Group