LONDON — The European Union is preparing arguments that electromagnetic spectrum licensing in Europe should be done on a pan-European basis instead of a national basis, according to a Financial Times report.

Viviane Reding, the EU media commissioner, is set to outline her plan on June 28 as part of a review of the legal framework governing telecoms and communications in the 25-nation block, the FT said.

Any present the spectrum is managed by national authorities usually under harmonized frequency assignments. This can affect mobile phone companies, television broadcasters, emergency service operators and other radio users, and can result in a burden of bureaucracy for companies seeking to provide pan European services.

However, the moves can also be seen as part of a creeping centralization as the European Union seeks to find ways of raising money in its own name rather than depending on national contributions to fill its coffers. And national governments are unlikely to be happy to relinquish licensing jurisdiction because of the loss of revenue. The licensing of spectrum for 3G services was a source of multibillion dollar revenues for many European governments as telecom operators, it can now be seen, overpaid for access to the airwaves.