This pattern is made using the 2 hole technique, also called missed hole. With this technique, you thread 2 threads per card, instead of 4 threads per card. This gives you a texture difference which in turn can create beautiful patterns.
Tabletweaving - Patterns
I use The Tablet Weaving Draft Designer (link) to create patterns for tabletweaving. There are several programmes and websites where you can make patterns, but after extensive testing, I personally like TWDD the best. It is completely free and there are many options!
The tabletweaving patterns I have on my website were created and described by me with a lot of time and patience. You may use them freely, although I would love it if you show your work and give me credit for the pattern!