ETSI
Contents
Intellectual Property Rights ................................................................................................................................ 4
Foreword ............................................................................................................................................................. 4
Modal verbs terminology .................................................................................................................................... 4
Introduction ........................................................................................................................................................ 4
1 Scope ........................................................................................................................................................ 5
2 References ................................................................................................................................................ 5
2.1 Normative references ......................................................................................................................................... 5
2.2 Informative references ........................................................................................................................................ 5
3 Symbols and abbreviations ....................................................................................................................... 6
3.1 Symbols .............................................................................................................................................................. 6
3.2 Abbreviations ..................................................................................................................................................... 6
4 Introduction .............................................................................................................................................. 6
4.1 Radio interface layering ..................................................................................................................................... 6
4.1.0 General .......................................................................................................................................................... 6
4.1.1 Control plane protocol stack ......................................................................................................................... 7
4.1.2 User plane protocol stack .............................................................................................................................. 8
4.2 SDUs and PDUs ................................................................................................................................................. 9
5 Physical Layer ........................................................................................................................................ 10
5.1 Shared Access Bearers ..................................................................................................................................... 10
5.2 Physical Layer Roles ........................................................................................................................................ 10
5.3 Physical Layer Characteristics ......................................................................................................................... 11
5.3.1 Range of Bearer Types and Subtypes ......................................................................................................... 11
5.3.2 Variable Coding Rate.................................................................................................................................. 11
5.3.3 Unique Words ............................................................................................................................................. 11
6 Bearer Control Layer operation .............................................................................................................. 12
6.1 Role of the Bearer Control Layer ..................................................................................................................... 12
6.2 Initial Timing Correction .................................................................................................................................. 13
6.3 Subsequent Timing Corrections ....................................................................................................................... 13
6.4 Coding Rate and Transmit Power Adjustments................................................................................................ 13
6.5 Admission Control ........................................................................................................................................... 14
6.6 Scheduling ........................................................................................................................................................ 14
6.7 Packing and Unpacking of Bearer Control PDUs ............................................................................................ 14
6.8 Ciphering .......................................................................................................................................................... 14
6.9 Support for Sleep Mode ................................................................................................................................... 14
6.10 Different UE Classes ........................................................................................................................................ 14
6.11 Transmission of System Information ............................................................................................................... 14
7 Bearer Connection Layer operation........................................................................................................ 15
7.1 Role of the Bearer Connection Layer ............................................................................................................... 15
7.2 Buffering and Flow Control ............................................................................................................................. 15
7.3 QoS Policing .................................................................................................................................................... 15
7.4 Segmentation and Reassembly ......................................................................................................................... 16
7.5 ARQ ................................................................................................................................................................. 16
7.6 Ciphering .......................................................................................................................................................... 16
7.7 Connection QoS Parameters ............................................................................................................................. 16
7.8 Connection types .............................................................................................................................................. 16
8 Adaptation Layer operation .................................................................................................................... 16
8.1 Role of the Adaptation Layer ........................................................................................................................... 16
History .............................................................................................................................................................. 18
