In a statement released this afternoon, the Department for Culture, Media and Sport and the Department for Business, Innovation and Skills (BIS) said: "We can confirm that he [Carter] will step down at summer recess with the completion of his work, as originally intended and with the full agreement of the PM."
The DCMS did confirm that the Digital Britain report will be published on Tuesday, 16 June, as planned. The report will shape government policy on public service broadcasting, local media ownership rules and digital radio switchover, among other things.
Following the publication of Digital Britain, the DCMS said Carter will be responsible for "putting a detailed implementation plan in place before the summer recess".
The former Ofcom chief executive was named as minister for communications, technology and broadcasting in the House of Lords, as part of Prime Minister Gordon Brown's reshuffle in October 2008.
Earlier today, BERR and the DCMS refused to comment on reports that Carter was to step down.