3 Definitions and abbreviations

03.343GPPHigh Speed Circuit Switched Data (HSCSD)Stage 2TS

HSCSD: High Speed Circuit Switched Data.

HSCSD configuration: A multislot configuration consisting of one or several full rate traffic channels for data transmission.

HSCSD channel: A full rate traffic channel belonging to a HSCSD configuration.

main channel: The only channel in a HSCSD configuration carrying an FACCH.

symmetric configuration: A configuration consisting of bi-directional channels.

asymmetric configuration: A configuration consisting of bi-directional channels and at least one uni‑directional channel.

For further GSM abbreviations see GSM 01.04 [1].