The 36-year-old centre-back penned a one-year deal at Loftus Road ahead of the 2014-15 campaign, after a trophy-laded 12-year spell at Manchester United came to an end.
Ferdinand was initially a mainstay of the first-team and he has started seven Premier League games for the club.
However, a Football Association ban coupled with fitness concerns have seen the former England international drop out of the team, with his last appearance coming on October 5.
Despite a lack of playing time, Ferdinand remains content with his decision to reunite with manager Harry Redknapp - who he also played under during his time at West Ham.
"No footballer worth his salt likes sitting on the bench. So I would be lying if I said I'm perfectly okay about being left out of the QPR team recently," he told The Sun.
"When you have enjoyed all the success of being at a club as big as Manchester United for more than a decade, there is no hiding the fact that my current circumstances are a bit of a comedown.
"But do not make the mistake of thinking I have any regrets about my move to Loftus Road - because I don't.
"I knew what I was getting myself into and knew I'd be at a club where you would mostly spend your time looking up at teams rather than down at those below you.
"And I was well aware that I probably wouldn't play every game. I'm realistic that, at the age of 36, that was never going to happen."
‘So many times when we played Manchester United, arguments would start before the first whistle had even blown – the players would try to kill each other with their eyes’ Former Arsenal star remembers famous Premier League rivalry
Bizarre Jose Mourinho statement aims to pre-empt punishment after Fenerbahce boss clashes with Galatasaray counterpart
