Provides a unique focus on radio protocols for LTE and
LTE-Advanced (LTE-A)

Giving readers a valuable understanding of LTE radio protocols,
this book covers LTE (Long-Term Evolution) Layer 2/3 radio
protocols as well as new features including LTE-Advanced. It is
divided into two sections to differentiate between the two
technologies' characteristics. The authors systematically
explain the design principles and functions of LTE radio protocols
during the development of mobile handsets. The book also provides
essential knowledge on the interaction between mobile networks and
mobile handsets.

* Among the first publications based on the 3GPP R10
specifications, which introduces LTE-A

* Beginning with an overview of LTE, topics covered include: Idle
Mode Procedure; Packet Data Convergence Protocol and Public Warning
Systems

* Presents the LTE radio interface protocol layers in a readable
manner, to enhance the material in the standards publications

* From an expert author team who have been directly working on
the 3GPP standards

It is targeted at professionals working or intending to work in
the area and can also serve as supplementary reading material for
students who need to know how theory on the most extensively used
mobile radio interface today is put into practice

SeungJune Yi, LG Electronics, South Korea

SungDuck Chun, LG Electronics, South Korea

YoungDae Lee, LG Electronics, South Korea

SungJun Park, LG Electronics, South Korea

SungHoon Jung, LG Electronics, South Korea

Provides a unique focus on radio protocols for LTE and LTE-Advanced (LTE-A)

Giving readers a valuable understanding of LTE radio protocols, this book covers LTE (Long-Term Evolution) Layer 2/3 radio protocols as well as new features including LTE-Advanced. It is divided into two sections to differentiate between the two technologies' characteristics. The authors systematically explain the design principles and functions of LTE radio protocols during the development of mobile handsets. The book also provides essential knowledge on the interaction between mobile networks and mobile handsets.

• Among the first publications based on the 3GPP R10 specifications, which introduces LTE-A
• Beginning with an overview of LTE, topics covered include: Idle Mode Procedure; Packet Data Convergence Protocol and Public Warning Systems
• Presents the LTE radio interface protocol layers in a readable manner, to enhance the material in the standards publications
• From an expert author team who have been directly working on the 3GPP standards

It is targeted at professionals working or intending to work in the area and can also serve as supplementary reading material for students who need to know how theory on the most extensively used mobile radio interface today is put into practice

Foreword by Takehiro Nakamura xiii

Preface xv

About the Authors xvii

1 Introduction 1

1.1 3GPP 1

1.2 Evolutionary Path of 3GPP Systems 4

1.2.1 GSM 4

1.2.2 GPRS/EDGE 6

1.2.3 UMTS 7

1.2.4 HSPA 8

1.2.5 LTE 9

1.3 Market Trend 10

1.4 Requirement of LTE 11

1.5 Overview of LTE Architecture 14

1.5.1 Network Architecture 14

1.5.2 QoS Architecture 18

1.5.3 Radio Protocol Architecture of LTE 21

1.6 UE Capabilities 24

References 26

2 Idle Mode Procedure 27

2.1 Idle Mode Functions 27

2.2 Services and Cell Categorization 29

2.3 UE States and State Transitions 30

2.4 PLMN Selection 31

2.4.1 Triggering of PLMN Selection 32

2.4.2 Search of Available PLMNs 32

2.4.3 PLMN Selection 32

2.5 Location Registration 34

2.6 Cell Selection 34

2.6.1 Cell Selection Criterion 35

2.6.2 Cell Selection upon RRC Connection Release 36

2.7 Cell Reselection 36

2.7.1 Measurement Rules 37

2.7.2 Reselection to a Neighboring Cell 39

2.7.3 Mobility State Dependent Scaling 41

2.8 Access Verification 43

2.8.1 Cell Barring Status and Cell Reservation Status 43

2.9 Paging Reception 44

References 45

3 Radio Resource Control (RRC) 47

3.1 RRC Functions and Architecture 48

3.2 System Information 50

3.2.1 Scheduling of System Information 50

3.2.2 System Information Update 54

3.3 Paging 55

3.4 Connection Establishment 56

3.4.1 Step 1: Access Class Barring 57

3.4.2 Step 2: Transmission of the RRCConnectionRequest Message 58

3.4.3 Step 3: Receipt of the RRCConnectionSetup Message 59

3.4.4 Step 4: Transmission of the RRCConnectionSetupComplete Message 59

3.5 Security 60

3.6 RRC Connection Reconfiguration 63

3.6.1 SRB2 Establishment 63

3.6.2 DRB Establishment 63

3.6.3 Parallel Procedure with Security Activation 64

3.7 UE Capability Transfer 65

3.8 Intra-EUTRA Handover 65

3.8.1 Handover Preparation 66

3.8.2 Handover Execution 69

3.8.3 Handover Completion 71

3.9 Measurement Control 72

3.9.1 Measurement Configuration 73

3.9.2 Measurement Report Triggering 74

3.9.3 Measurement Reporting 75

3.10 RRC Connection Re-establishment 75

3.11 Inter-RAT Mobility 78

3.11.1 Inter-RAT Mobility from/ to 3GPP Access Systems 78

3.11.2 Inter-RAT Mobility from/ to CDMA2000 Systems 82

3.12 RRC Connection Release 84

Reference 85

4 Packet Data Convergence Protocol (PDCP) 87

4.1 PDCP Functions and Architecture 87

4.2 Header Compression 89

4.3 Security 91

4.3.1 Integrity Protection 91

4.3.2 Ciphering 92

4.4 Data Transfer 93

4.5 SDU Discard 94

4.6 Handover 95

4.6.1 SRB Behavior at Handover 95

4.6.2 UM DRB Behavior at Handover 95

4.6.3 AM DRB Behavior at Handover 97

4.7 PDCP PDU Formats 99

4.7.1 PDCP Data PDU Formats 99

4.7.2 PDCP Control PDU Formats 100

Reference 100

5 Radio Link Control (RLC) 101

5.1 RLC Functions and Architecture 101

5.1.1 Transparent Mode (TM) RLC 101

5.1.2 Unacknowledged Mode (UM) RLC 102

5.1.3 Acknowledged Mode (AM) RLC 103

5.2 Framing 105

5.3 Reordering 106

5.4 ARQ Operation 108

5.4.1 Polling 108

5.4.2 Status Reporting 109

5.4.3 Retransmission 110

5.4.4 Re-segmentation 111

5.5 Window Operation 112

5....