EU nations will be required to share data on 5G cybersecurity risks and produce measures to tackle them by the end of the year, the European Commission said on Tuesday, shunning U.S. calls to ban China's Huawei Technologies across the bloc.

The aim is to use tools available under existing security rules plus cross-border cooperation, the bloc's executive body said, leaving it to individual EU countries to decide whether they want to ban any company on national security grounds.

Austria, Belgium, Czech Republic, France, Germany, Greece, Hungary, Ireland, the Netherlands, Lithuania and Portugal are all preparing to auction 5G licenses this year while six other countries will do so next year.