You can not share your phone wireless internet with your PS3. The PS3 will search for a WiFi connection and if one is found it can be used to connect to the internet.
Apr 10, 2012 Network Diagram Layouts: Home Network Diagrams Apr 30, 2020 HELP PS3 Internet WIRED CONNECTION SET UP? | Yahoo Answers Mar 26, 2011 PS3 Internet connection help? - Microsoft® Community
Aug 24, 2011 · A common woe of the average PS3 owner is the lack of proper internet speeds, a PS3 at stock settings is fairly slow even with Ethernet plugged directly into it, today I will help you clear this
Jan 25, 2019
When you are asked if it is okay to disconnect the PlayStation 3 system from the Internet, select [Yes]. When you are asked to choose a setting method, select [Easy]. The PlayStation 3 system will check the network connection settings. A list of settings will be displayed. Ensure that they are correct and press the  button to save the settings.
PS3 turning on interrupts wired internet connection I've noticed this since I've been playing WAR recently. If my roommate turns on his PS3, it drops my net connection for a while. I'll lose my connection to Vent and Warhammer. It's only for maybe a minute, then I can reconnect. I disabled the PS3's internet, but just today I … ps3, wired internet connection help? | Yahoo Answers