BERLIN  The European Union’s telecommunications minister will propose price controls that would substantially reduce the roaming fees that individuals are charged to send text messages and limits that could reduce the cost of using the Internet.

Details of the proposal, obtained Wednesday by The International Herald Tribune, show that the minister, Viviane Reding, will seek to cap retail roaming fees for short text messages, or S.M.S., within the European Union at 11 euro cents, or 16 American cents, a message.

That would be a 62 percent reduction from the current average of 29 cents, according to the European Commission, which is the executive arm of the European Union.

Ms. Reding also intends to recommend a cap on the wholesale cost of using cellphones to gain access to the Internet  the fees operators charge each other  that would halve the average cost to one euro a megabyte.