For the purposes of the present document, the definitions in TR 21.905
apply as well as the following terms and definitions.
Bearer Independent Core Network :
Codec Configuration :
This term refers to a core network (CN) comprised of MSC Server, CS-MGW and GMSC Server nodes to support MSC and GMSC functionality, as defined in TS 23.002
The Codec Configuration of a codes type ,like AMR, includes mainly the Active Codec Set, the setting of the OM flag and DTX parameters, etc.
Mega (Million) Instructions Per Second. This is a measure for the required DSP capacity. It is here in this context related to the "ETSI-DSP" as defined in 3GPP SA4 for the complexity characterisation of the 3GPP Speech Codec algorithms.
For the purposes of the present document, the following symbols apply:
the reference point internal to the BSC functional entity, between the transcoders and the rest of the BSC functions.
interface between the BTS and the BSC
For the purposes of the present document, the abbreviations in TR 21.905
apply as well as the following abbreviations:
Bearer Independent Core Network
Bearer Independent Call Control
Digital Signal Processor
Out of Band Transcoder Control
TFO Protocol Termination
User Plane Termination