1 Abbreviations 5

2 Overview 8

3 5G Industry Progress Update 8

3.1 Standard Progress Update 8

3.2 Global Spectrum Auction Progress Update 9

3.3 Chipset and Terminals Progress Update 10

3.4 Commercialization and Large Scale Trial progress 11

4 NSA: Background and Basic Principle 12

4.1 NSA Background 12

4.2 NSA Basic Principle 13

4.2.1 Data Split for User Plane 14

4.2.2 Mobility Management for Control Plane 14

5 NSA Networking, Key Challenges and Solutions, Parameters Optimization 17

5.1 NSA Networking 17

5.1.1 Service Prospects and Requirements 17

5.1.2 Networking Indicators : SSB and CSI-RS 18

5.1.3 Macro Station Equipment Type Selection 20

5.2 NSA Key Challenges and Solutions 21

5.2.1 Challenge 1: How to Improve 5G NSA UE User Experience 21

5.2.2 Challenge 2: How to Improve EN-DC Uplink Coverage 23

5.2.3 Challenge 3: How to Save Power Consumption for EN-DC UE 23

5.3 NSA Parameters and Performance Optimization Experience 24

5.3.1 NR Parameters Optimization Experience 24

5.3.2 LTE Optimization Experience 28

6 Large-Scale Trial and IoDT Result Sharing 28

6.1 Trial Network and IoDT Process 28

6.1.1 5G Trial Network and IoDT Process in Hangzhou 29

6.1.2 5G Trial Network and IoDT Process in Wuhan 31

6.1.3 5G Trial Network and IoDT Process in Guangzhou 32

6.2 Trial Performance 32

6.2.1 NSA SU Peak THP 33

6.2.2 NSA MU Peak THP 33

6.2.3 NSA Control Plane Delay 34

6.2.4 NSA User Plane Delay 35

6.2.5 NSA Outdoor Drive Test 35

6.2.6 NSA Indoor Test 38

7 NSA Key Findings Sharing 38

7.1 SRS Antenna Switching 39

7.1.1 Brief Principle 39

7.1.2 Trial Performance Comparison 40

7.2 CSI-RSRP/SINR Measurement ( >8Beam) 43

7.3 NSA UL Coverage Improvement 44

7.3.1 UL Dynamic Power Allocation 44

7.3.2 HPUE for TDD LTE+TDD NR 45

7.4 SFTD Measurement for NSA Network Synchronization 45

8 NSA & SA Co-existence, and Evolution to SA 47

8.1 What is SA ? 47

8.1.1 SA Provides Enhanced Performance and Features 47

8.1.2 SA fulfils 5G Vision for All Services 48

8.1.3 Comparison and Summarize 48

8.2 NSA & SA Co-existence 49

8.3 NSA Evolution to SA 50

9 Summary 51