How do I render six videos onto a sphere to make a panoramic video?

I have a block of the video, is now a 3 * 3, it could also be 9 * 9, I can on the plane according to the UV maps made him into a block, but when I am on the sphere, I should how to set up to six pieces of video Mosaic a complete video, and I’m not very understanding of UV and vertex coordinates series, I hope to get help, thank you very much