愛立信最新Counter Flow Chart L15B指標流程文檔

Contents

1 Introduction 1

1.1 Main Symbols 2

1.2 Performance Management Areas 3

2 Counter Flowcharts 5

2.1 Accessibility 6

2.1.1 Paging 6

2.1.2 Random Access 7

2.1.3 RRC Connection Setup 11

2.1.4 RRC Connection Re-establishment 15

2.1.5 Signaling Connection Setup and E-RAB Establishment 18

2.2 Retainability 23

2.2.1 UE Context Release 23

2.2.2 E-RAB Release 28

2.2.3 E-RAB Modification 37

2.2.4 CS Fallback 38

2.3 Availability 43

2.3.1 Cell Downtime 43

2.4 Integrity 45

2.4.1 PDCP Latency 45

2.4.2 PDCP Volume 46

2.4.3 Time Measurements for Throughput Calculation 49

2.4.4 PDCP Packet Loss 50

2.4.5 RLC Delay 53

2.4.6 MAC Delay 54

2.4.7 VoIP Quality and TTI Bundling 54

2.4.8 RLC Acknowledged Mode (AM) Automatic Repeat request

(ARQ) procedures 56

2.5 Mobility 58

2.5.1 Intra-frequency Handover 58

2.5.2 Inter-frequency Handover 64

2.5.3 Coverage-triggered IRAT Handover 70

2.5.4 Inter-RAT Offload to UTRAN 72

2.5.5 Incoming UTRAN IRAT Handover 74

2.6 Resource Use 76

2.6.1 Number of Active Users 76

2.6.2 Session Time 77

2.6.3 Number of Active DRBs 78

Counter Flow Chart L15B.pdf