British Prime Minister David Cameron is kicking off a high-stakes weekend of diplomatic negotiations on European Union reforms with a visit to EU headquarters.

Cameron will be hosted on Friday by the leaders of the EU's executive Commission and the European Parliament, amid signs on both sides that they want a deal. If he gets enough reform, Cameron could argue for continued EU membership during a British referendum on the issue that could come as early as this summer,

On Sunday, Cameron will host EU President Donald Tusk for more talks at Downing Street as the Feb. 18-19 EU summit on the issue is drawing near.

Cameron has said he will back staying in the EU if the reform will allow Britain more independent decision-making.