How to help 10 week old fall asleep independently

My son is 10 weeks old and will only fall asleep in my arms when I hold and sway him. while I don't mind doing this, I realise I need to train him to sleep independently as falling asleep on your own, I believe is a really essential life skill. On top of that, he's getting so heavy and giving me back pain! Any tips on how to effectively do this? I've tried holding him till he's very sleepy and has droopy eyes and then I lay him down in the bassinet. but the moment he feels the 'going down' sensation he starts whinging/crying.