Quote:
Originally Posted by JSH
The CDMA / GSM distinction went away with LTE which uses a new protocol. Mobile providers are quickly killing off old 2G / 3G networks so they can reuse the spectrum for LTE and 5G
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There's a lot of confusion with cellular terminology. CDMA is a technique (code division) to allow multiple users to share the same frequency, whereas GSM is a protocol, and utilizes a different technique, TDMA (time division) to share the same frequency.
4G is a benchmark throughput (1 gbps stationary). It doesn't define a protocol or frequency sharing technique as far as I can tell. There's no definition I can find of what method of multiple access it must use. CDMA still might be used to achieve 4G
5G seems ambiguous except that it can include shorter wavelength frequencies and potential for higher bandwidth. I don't see any benchmarks to qualify something as 5G.