4 ms·
2g (and all other standards after it) use 20-millisecond frames. It needs to send 8KHz audio at much lower bitrates (~14Kbps instead of 64Kbps), and you can't
by miki123211 2y ago
2g (and all other standards after it) use 20-millisecond frames.
It needs to send 8KHz audio at much lower bitrates (~14Kbps instead of 64Kbps), and you can't do that with raw PCM if you want decent quality. This means you need lossy compression and a codec, and those need far more than a single sample to work well.
CDMA was similar, not sure what their frame size was exactly, but it was somewhere in the vicinity.