释义 |
1G (1st Generation) In cellular radio, referring to analog systems such as Advanced Mobile Phone Sys- tem (AMPS), Narrowband AMPS (N-AMPS), Nordic Mobile Telephone (NMT), and Total Access Com- munications System (TACS). See also 2G, 2.5G, 3G, AMPS, analog, cellular radio, N-AMPS, NMT, and TACS. |