Simon, who joined The Bees in the summer from Swedish side Halmstad BK, is one of 68 players included by Head Coach Tomas Turesson for the four-day camp this week.
The goalkeeper has been an integral part of his nation's set-up in recent months, making 17 appearances for the Under-17s. He was an ever-present during the summer as The Swedes reached the last eight of the Under-17 European Championships held in England.
The 17-year-old made his first appearances for Brentford B during their tour to Switzerland in September, keeping a clean sheet on both his outings. Simon kept up his record of not conceding last time out as he was part of the side which beat CB Hounslow United 4-0 in the Middlesex Senior Cup.
Simon is the fifth member of Kevin O'Connor's B Team squad to receive an international call-up this month joining David Titov (Latvia Under-19), Patrik Gunnarsson (Iceland Under-19), Jan Zamburek (Czech Republic Under-18), and Kolbeinn Finnsson (Iceland Under-21).