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Content for TR 37.901-5 Word version: 16.12.0

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5.1 Definition of Application Layer Data Throughput Performance 5.2 Parameters for Measurement 5.3 Test Configurations 5.4 Transport and Application Layer Protocols 5.5 Test Environment 5.6 Data Transfer Scenarios 5.7 Statistical Analysis 5.8 Impact of Modem Performance in Application Layer Throughput 5.9 Test System Uncertainty and Test Tolerance 5.10 Feasibility of Defining Link Adaptation Absolute Physical Layer Requirements

5 Study on 5G NR UE Application Layer Data Throughput Performance p. 11

5.1 Definition of Application Layer Data Throughput Performance p. 11

5.1.1 Definition of End Points p. 11

5.2 Parameters for Measurement p. 12

5.2.1 Throughput p. 12

5.3 Test Configurations p. 12

5.3.1 5G NR UE Application Layer Data Throughput Test Equipment p. 12

5.3.2 UE Application Layer Data Throughput Connection Diagrams p. 12

5.3.2.1 UE Application Layer Data Throughput Connection Diagram for Tethered p. 12

5.3.2.2 UE Application Layer Data Throughput Connection Diagram for Embedded p. 12

5.3.3 RF Connection Diagrams for UE Application Layer Data Throughput p. 13

5.3.4 UE Specific Items p. 13

5.4 Transport and Application Layer Protocols p. 13

5.4.1 Transport Layer Protocol p. 13

5.4.2 Application Layer Protocol p. 13

5.4.2.1 TCP Settings p. 14

5.4.2.1.1 TCP advertised receiver window size setting p. 15

5.4.2.2 UDP Settings p. 15

5.4.3 Upper Layer impact on throughput measurements p. 16

5.4.3.1 Overview p. 16

5.4.3.2 TCP/UDP Layer p. 17

5.4.3.3 IP Layer p. 17

5.4.3.4 PDCP Layer p. 17

5.4.3.5 RLC Layer p. 18

5.4.3.6 Overhead between MAC and TCP/UDP layer p. 18

5.4.3.7 Overhead for LTE p. 18

5.4.3.8 SA, NSA and NSA split-bearer p. 18

5.4.4 Summary of Upper Layer Parameters and Overhead from MAC to Transport Layer p. 18

5.5 Test Environment p. 19

5.5.1 Conducted Testing for 5G NR FR1 p. 19

5.5.1.1 Signal Levels p. 19

5.5.1.2 Fading Profiles p. 19

5.5.2 Radiated Testing for 5G NR FR2 p. 20

5.5.2.1 Signal Levels p. 20

5.5.2.2 Fading Profiles p. 20

5.6 Data Transfer Scenarios p. 20

5.6.1 TCP Transfers p. 20

5.6.2 UDP Transfers p. 20

5.7 Statistical Analysis p. 21

5.7.1 Overview of Layer 1 throughput p. 21

5.7.2 Overview of Application Layer throughput p. 22

5.7.3 Test Time for Application Layer Throughput procedures p. 23

5.8 Impact of Modem Performance in Application Layer Throughput p. 23

5.8.1 Modem Performance in current TS 38.521-4 conformance tests p. 23

5.8.2 Modem Performance in Application Layer Data Throughput Tests p. 24

5.9 Test System Uncertainty and Test Tolerance p. 24

5.9.1 Test System Uncertainty and Test Tolerance for FR1 testing p. 24

5.9.1.1 Recommended Uncertainty of Test System p. 24

5.9.1.2 Test Tolerances p. 24

5.9.1.3 Impact of Test System Uncertainty on Test Results p. 24

5.9.1.4 Impact of Test System Uncertainty on Test Results for FR1 p. 25

5.9.2 Test System Uncertainty and Test Tolerance for FR2 testing p. 26

5.9.2.1 Recommended Uncertainty of Test System p. 26

5.9.2.2 Test Tolerances p. 26

5.9.2.3 Impact of Test System Uncertainty on Test Results p. 26

5.9.2.4 Impact of Test System Uncertainty on Test Results for FR2 p. 27

5.10 Feasibility of Defining Link Adaptation Absolute Physical Layer Requirements p. 27

5.10.1 General p. 27

5.10.2 Test Methodology p. 27

5.10.2.1 Simulation Alignment Criteria p. 27

5.10.2.2 Methodology for Requirements Definition p. 28

5.10.3 Simulation Assumptions p. 28

5.10.4 Simulation Results p. 30

5.10.5 Summary p. 31

6 Conclusions p. 31