For those saying “why not Starlink”. What they can get with 4G is to blanket a very wide area with coverage, and in this area several devices can get fast data access, and importantly the devices can be cheap, very small and very low power (rovers or people). The base station is also relatively cheap and small. Starlink around the moon implies a whole bunch of satellites ($), a ground terminal ($), and devices that use large, not very mobile, expensive phased array ($) dishes that need line of sight.