Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Interface to Iu@ Uu and Nb (V14.0.0; 3GPP
The present document specifies the mapping of the AMR wideband generic frame format (3GPP TS 26.201) to the Iu Interface (3GPP TS 25.415)@ the Uu Interface and the Nb Interface (3GPP TS 29.415) of a BICC-based circuit switched core network. It further specifies the mapping of PCM 64 kBit/s (ITU-T G.711) coded speech to the Nb Interface of a BICC-based circuit switched core network. The mapping of the AMR wideband generic frame format to RTP for the A-Interface and the Nb Interface for a SIP-I - based circuit switched core network is described in TS 26.102.