The left-back moved to Berkshire for the 2021/22 season and has impressed throughout the current campaign.
The 27-year-old has admitted he still wants to play in the Premier League and is using this loan as a chance to prove himself again.
"As a team we've had some ups and downs but I am loving my stay here. Things can change quickly - I was expecting that in the Championship before I arrived."
Rahman added: "When I play a game sometimes it's difficult for me to sleep so I just try to engage with some of the fans to see how they are doing.
"It's really nice, I'm liking how positive they are and how they motivate me. It's important for the fans to know how you feel and for you to express yourself to the fans."