By Leos Rousek

PRAGUE--The Czech telecommunications regulator, or CTU, Thursday unveiled a new bidding process for mobile radio frequencies to allow the upgrade of current wireless data networks and a possible entry of a new cellular operator into the local market.

"We're putting aside dedicated bandwidth to attract a new mobile company to offer its services here," CTU spokesman Frantisek Malina said.

The regulator will launch the frequency auction in November and bidders have until the end of September to register for it, the CTU said.

The CTU said it will offer 800 megahertz frequencies exclusively to new operators to boost competitiveness on the market, which is now dominated by three operators: the local units of Telefonica SA (TEF), of Deutsche Telekom AG (DTE.XE) and of Vodafone Group PLC (VOD).

All operators, including the incumbents, will be able to bid for 1,800 and 2,600 megahertz bandwidths which are suitable for a country-wide roll-out of new high-speed mobile networks with long-term evolution technology, or LTE, the successor to third-generation, or 3G, mobile data services.

In March the CTU suspended its earlier bandwidth frequency auction when bids climbed to above 20 billion Czech Koruna ($1.03 billion), or nearly three times the minimum bid of CZK7.4 billion set at the start of the auction.

At the time the regulator said that such prices were too high and would most likely hamper the entry of a new operator and costs for upgraded cellular networks would most likely be passed on to local customers.

Months of consultations with potential bidders on terms preceded the revised bandwidth auction launch.

Earlier this year, the regulator said it was expecting bids to be below CZK10 billion koruna for new frequencies.

In recent months two local telecommunications companies--PPF Mobile Services AS and Dial Telecom AS--have expressed interest in entering the local cellular market and bidding for the offered mobile radio frequencies.

PPF Mobile Services is controlled by the privately-held financial company PPF Group NV, in turn majority owned by Czech financier Petr Kellner. Dial Telecom, also privately-held, operates one of the largest fiber optics cable network in the Czech Republic, offering corporate wired data and voice services.

Neither PPF Mobile Services nor Dial Telecom officials could be immediately reached to comment.

Write to Leos Rousek at leos.rousek@wsj.com

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