How to speed up my Internet and download speed

I am now using internet with my Sansumg Galazy Ace phone. While I am downloading files, download speed is not more than 30 kbps. My computer is windows 7 32 bit version. Sometimes download speed becomes very slow and I have to wait for a long time even to complete just a 5mb downloading files.
I wish to use faster internet speed in downloading files. I have tried one just a few minutes ago but it does not work good enough, it is just only not more than 30 kbps.
Tell me some ways how can I speed up my download speed and also internet speed with my phone' internet connections.
I am waiting for your reply.
Thanks.