There are a gazillion patents on radio related stuff. Nearly all standards have associated patents.
Companies already in the industry typically have cross-licensing agreements - ie. I can use your patents if you can use mine. Either that or they just violate each others patents knowing that a patent war would be mutual destruction and in neither companies interests.
But a newcomer has nothing to offer - the minute they release any product, every incumbent company will go through their patent portfolio and sue them out of the water.
Companies already in the industry typically have cross-licensing agreements - ie. I can use your patents if you can use mine. Either that or they just violate each others patents knowing that a patent war would be mutual destruction and in neither companies interests.
But a newcomer has nothing to offer - the minute they release any product, every incumbent company will go through their patent portfolio and sue them out of the water.