How to realize the sharing of Internet between laptop and desktop computer

Desktop installed 3G Internet card, and turn on the computer's wireless network switch (soft/hard off are open), double-click Unicom Dialer, using the default Unicom as a dial-up link dial-up Internet, after the successful connection, my notebook has been able to use a single Internet.

Next, click the Network connection icon in the lower right corner of the Windows7 desktop to access the network and Sharing Center. Click "Set up a new connection or network" under the window and select "Set up a wireless temporary (computer-to-computer) network" in the window. Then, in the Set up Temporary network window, set up the new network name (I set it to outdoor) and encryption type for the co-workers separately. In order to ensure that computers using Windows XP are also successfully plugged in, WAP2 mode and unencrypted mode are not recommended, and it is recommended that you choose WEP for encryption (that is, security type). When these settings are done, our WLAN is built. Remember to check "Enable Internet Connection Sharing" in the prompt window. A new wireless network connection in the "Waiting for user" State will appear in the wireless network connection on the host side.

But Windows7 has not bridged the 3G network with this new wireless network. The notebook needs to operate simultaneously: Search the wireless network as usual, find this "outdoor" wireless network point "Connection" (Network name is oneself can set, not necessarily is called outdoor), then fill in the password can successfully connect, can through my notebook share 3G Internet.