Content for TS 48.020 Word version: 18.0.0
5 The RA1 Function
5a The RA1' Function
6 The RA1'' Function
7 Split/Combine and Padding Functions
8 The EDGE Multiplexing Function
9 The Functions RA1/RA1' and RA1'/RA1"
10 The Functions RA1'/RAA' and RA1'/RAA"
11 THE RAA' FUNCTION
12 THE RAA'' FUNCTION
12a The RAE Function
13 The RA2 Function
14 The A-interface Multiplexing Function
15 Support of non-transparent bearer services in A/Gb mode
15a Support of non-transparent bearer services in Iu mode
16 Support of transparent bearer services in A/Gb mode
16a Support of transparent bearer services in Iu mode
17 Frame Formats
A Frame Pattern Substitution
$ Change History
5 The RA1 Function p. 7
5a The RA1' Function p. 8
6 The RA1'' Function p. 8
6.1 Rate adaptation of 48 kbit/s user rates with DTE/DCE status to 64 kbit/s p. 9
6.2 Rate adaptation of 56 kbit/s user rate to 64 kbit/s p. 9
7 Split/Combine and Padding Functions p. 9
7.1 Data Frame distribution into the channels by the Split/Combine function p. 9
7.2 Substream numbering p. 9
7.3 Initial Substream Synchronisation for Transparent Services p. 9
7.4 Frame Synchronisation and Action on loss of Synchronisation p. 9
7.5 Network Independent Clocking p. 9
7.6 Padding p. 9
8 The EDGE Multiplexing Function p. 10
8.1 Transparent services p. 10
8.2 Non-Transparent services p. 10
9 The Functions RA1/RA1' and RA1'/RA1" p. 11
9.1 Radio Interface rate of 12 kbit/s p. 11
9.2 Radio Interface rate of 6 kbit/s p. 11
9.3 Radio Interface rate of 3.6 kbit/s p. 11
9.4 Synchronisation p. 11
9.5 Idle frames p. 11
10 The Functions RA1'/RAA' and RA1'/RAA" p. 12
11 THE RAA' FUNCTION p. 12
11.1 Coding of A-TRAU frame p. 12
11.2 Framing Pattern Substitution in A-TRAU frame p. 13
11.2.1 FPS encoding p. 13
11.3 A-TRAU Synchronisation Pattern p. 15
12 THE RAA'' FUNCTION p. 15
12a The RAE Function p. 16
13 The RA2 Function p. 16
14 The A-interface Multiplexing Function p. 17
15 Support of non-transparent bearer services in A/Gb mode p. 17
15.1 TCH/F9.6 and TCH/F4.8 kbit/s channel codings p. 17
15.1.1 Alignment p. 18
15.1.2 Support of Discontinuous Transmission (DTX) p. 18
15.1.3 Order of Transmission p. 18
15.2 TCH/F14.4, TCH/F28.8, and TCH/F43.2 channel codings p. 19
15a Support of non-transparent bearer services in Iu mode p. 20
16 Support of transparent bearer services in A/Gb mode p. 20
16.1 TCH/F9.6 and TCH/F4.8 channel codings p. 20
16.1.1 User rate adaptation on the A interface, AIUR less than or equal to 38,4 kbit/s p. 20
16.1.2 User rate Adaptation on the A-interface, AIUR greater than 38,4 kbit/s p. 21
16.1.3 Relation between AIUR and the number of channels p. 21
16.1.4 Handling of status bits X, SA, SB p. 21
16.1.5 Handling of bits E1 to E7 p. 21
16.2 TCH/F14.4, TCH/F28.8, and TCH/F32.0 channel codings p. 22
16a Support of transparent bearer services in Iu mode p. 23
17 Frame Formats p. 23
A Frame Pattern Substitution p. 28
A.1 Special cases p. 28
A.2 False Z sequence detection p. 29
$ Change History p. 31
