How do I extend my laptop's wifi Internet to my iPhone?

So I'm having trouble getting on my home wireless internet using my iPhone.

My router is in the basement, and whenever I'm on the third floor, my laptop gets around 2 bars, but my iPhone can't pick up the signal.

So is there any way that I can use my laptop as a second router to extend my wifi to my iPhone? I've tried third party programs like Virtual Router Manager, Connectify, Maryfi, but my iPhone (4S model) picks up the signal for like 20 seconds, and then the wifi just drops for 10 minutes, then picks it up again for like 20 seconds, then drops for like 10 minutes again, and on...)

Is there any way that windows 7 can do it natively? or are there any other solutions out there? thanks!

Hello,

Wireless Repeaters/Extenders would help.

If the Router has external Antenna, you may replace them with High Gain Antenna and they are quite reasonable. The higher the dBI's the better signal you'll get. I use them at my home and it works great.
http://www.amazon.com/s/ref=nb_sb_n...igh+gain+antenna&rh=i:aps,k:high+gain+antenna

Tips to help improve wireless network.
How to improve your wireless network and boost its signal

Edit: Wrong thread