Yes, lte network may have satellite back haul to provide its services at rural areas. As per my understanding, such type of solution is best suited for military services. I am not sure what types or services can be provided through this back haul. I mean to ask voice or delay sensitive services.
Interface point of view, I found a link which shows satellite gateway connects to PGW through SGi interface.
I am new for this area LTe to Satellite. So I can't explain. I expect some else would explain who has already worked or has knowledge base in this area. Read more at: http://tech.queryhome.com/44786/lte-is-there-any-satellite-back-haul-for-lte-network
