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A reference configuration of the transmission chain is shown in 3GPP TS 45.001. According to ETSI TS 145 003, the present document specifies the data blocks given to the encryption unit.
It includes the specification of encoding, reordering, interleaving and the stealing flag. It does not specify the channeldecoding method.
The definition is given for each kind of logical channel, starting from the data provided to the channel encoder by thespeech coder, the data terminal equipment, or the controller of the Mobile Station (MS) or Base Transceiver Station(BTS). The definitions of the logical channel types used in this technical specification are given in 3GPP TS 45.002, asummary is in annex A.
Additionally, the present document describes the characteristics of the coding/multiplexing unit for the Flexible LayerOne (FLO) starting from the transport blocks provided by higher layers. An overview of FLO is given in 3GPP TR45.902.