"The American side had a dual attitude, since it is not clear what is implied by this - an intermediate stage in scrapping the nuclear programme, or the ultimate goal," the diplomat told journalists.
The debate on the document was frozen at the end of last year, but on Tuesday the Chinese Foreign Ministry announced a date for holding the second round of talks - February 25th.
Losyukov did not rule out that a final document would appear directly during the course of the negotiations themselves.
According to the high-ranking Russian diplomat, Moscow does not look to any breakthrough during the upcoming round in Beijing.
"I do no believe in a breakthrough, the differences in the sides' positions are too great," said Losyukov. "What we need is not breakthroughs, but a clear understanding of where to move further." "The ultimate goal of the negotiations is to understand how North Korea can obtain guarantees of its security and also to free the Korean peninsula from nuclear weapons," Russia's deputy foreign minister emphasised.