Basic Rate Interface (2 B-channels + 1 D-channel) of 64+64+16 = 144 kbit/s also refers to the payload datarates, while the D channel signalling rate is
0.15 kbit/s lower. The net bitrate here is the rate at which the RLC/MAC layer payload (the RLC dataunit) is transmitted. As such, this bit rate excludes
0 and up to 3.1 Mbit/s with Rev. A. The reverse link rate for Rel. 0 can operate up to 153 kbit/s, while Rev. A can operate at up to 1.8 Mbit/s. It was
integer; in 4B3T coding, the bit rate is 4/3 of the baud rate. (A typical basic rate interface with a 160 kbit/s raw datarate operates at 120 kBd.) Codes