If both devices can connect wirelessly, you should not need a connection that goes through another device... Connect them both to the network...
I'm just using my crystal Ball to read your mind.. I could be way off.. who knows.. Giving detail will help us solve your issue!
If a hot-spot was created you can go through your Lappy wireless off a mobile device..
http://en.wikipedia.org/wiki/Hotspot_(Wi-Fi)