A reference configuration of the transmission chain is shown in
TS 45.001. According to this reference configuration, 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 channel decoding method.
The definition is given for each kind of logical channel, starting from the data provided to the channel encoder by the speech 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
TS 45.002, a summary is in
Annex A.
Additionally, the present document describes the characteristics of the coding/multiplexing unit for the Flexible Layer One (FLO) starting from the transport blocks provided by higher layers. An overview of FLO is given in
TR 45.902.
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
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References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
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For a specific reference, subsequent revisions do not apply.
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For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 26.090: "AMR speech Codec; Transcoding Functions".
[3]
TS 26.190: "Mandatory Speech Codec speech processing functions AMR Wideband speech codec; Transcoding functions".
[4]
TS 44.018: "Mobile radio interface layer 3 specification, Radio Resource Control Protocol".
[5]
TS 44.021: "Rate adaption on the Mobile Station Base Station System (MS BSS) interface".
[6]
TS 44.060: "General Packet Radio Service (GPRS); Mobile Station (MS) - Base Station System (BSS) interface; Radio Link Control/ Medium Access Control (RLC/MAC) protocol".
[7]
TS 45.001: "Physical Layer on the Radio Path (General Description)".
[8]
TS 45.002: "Multiplexing and multiple access on the radio path".
[9]
[10]
[11]
[12]
[13]
[14]
[15]
TS 46.060: "Enhanced full rate speech transcoding".
Abbreviations used in the present document are listed in
TR 21.905. In addition to abbreviations in
TR 21.905 the following abbreviations apply:
BTTI
Basic Transmission Time Interval
ESAB
Extended Synchronization Access Burst
EDAB
Extended Dual slot Access Burst
eTFI
Extended Temporary Flow Identity
FANR
Fast Ack/Nack Reporting
PAN
Piggy-backed Ack/Nack
PANI
Piggy-backed Ack/Nack Indicator
RTTI
Reduced Transmission Time Interval
TFI
Temporary Flow Identity
TTI
Transmission Time Interval