Table of Contents

1    Executive Summary   

2    Abbreviations   

3    Introduction

   
4    References   

5    Form Factor of 5G Device   

6    General Description   
6.1    System Description   
6.1.1    Key System Requirements   
6.1.2    Performance requirements   
6.2    Physical Layer Requirements   
6.2.1    Multiple numerologies   
6.2.2    Flexible frame structure   
6.2.3    Bandwidth part configuration and adaptation   
6.2.4    Initial access   
6.2.5    Mobility   
6.2.6    Waveform   
6.2.7    Modulation   
6.2.8    Multiple antenna techniques   
6.2.9    Scheduling and HARQ timing   
6.2.10    Channel coding   
6.3    Upper Layer Requirements   
6.3.1    Control Plane   
6.3.2    User Plane   
6.4    Summary   

7    Multi-Mode Multi-Band   

8    Network Access Capability   
8.1    Connectivity Options in 3GPP   
8.1.1    Standalone NR   
8.1.2    Non-Standalone NR   
8.2    Uplink Strategies for NR deployment   
8.2.1    Uplink strategies for Standalone Operation   
8.2.2    Uplink strategies for Non-Standalone Operation   

9    Inter-RAT Interworking   
9.1    NR mobility state transition   
9.2    Inter-System Procedure   
9.2.1    Interworking Procedures with N26 interface   
9.2.2    Interworking Procedures without N26 interface   

10    Voice Solution   
10.1    Potential solutions   
10.2    Summary  

 
11    RF Performance   
11.1    High Power UE   
11.1.1    Motivation   
11.1.2    3GPP Status   
11.1.3    TX Front-end Status and Architecture for HPUE   
11.1.4    Consideration on Thermal for HPUE   
11.1.5    Consideration on SAR for HPUE   
11.2    In-Device Interference   
11.3    SUL   
11.4    LTE and 5G NR RF path co-banding   
11.4.1    Concept and Architecture of RF Path Co-banding   
11.4.2    System-level Challenges   
11.4.3    Way Forward on standalone support   
11.4.4    Co-banding with simultaneous operation   

12    Demodulation Performance   
12.1    High Speed Train Scenarios   
12.2    UE Speed and DMRS Density   

13    Power Consumption   
13.1    Introduction   
13.2    Key scenarios and performance metrics   
13.2.1    Maximum throughput   
13.2.2    The power vs latency trade-off   
13.2.3    Achieving power efficient VoNR and ViNR   
13.2.4    TDD spectrum and NR UE power consumption   
13.2.5    Scheduling implications   
13.3    Power scaling from LTE to NR   
13.3.1    Example power breakdown for an LTE UE   
13.3.2    A simple power model for the NR UE   
13.3.3    RF front end power   
13.3.4    Transceiver subsystem power   
13.3.5    Baseband processing power   
13.3.6    Standalone NR UE power consumption   
13.4    Managing UE power efficiently   
13.4.1    Bandwidth part adaptation   
13.4.2    Cross-slot scheduling   
13.4.3    Power vs data rate   
13.4.4    Overtemperature protection   
13.5    Implications for NR UEs   
13.5.1    Better efficiency, but higher peak power   
13.5.2    Standalone vs Non-standalone   
13.5.3    Downlink processing may use more power than uplink transmit   
13.5.4    Maintaining efficiency at low data rates   

14    Test Requirements   
14.1    Test areas for 5G sub-6G and challenges   
14.1.1    Test challenges   
14.1.2    Requirement for test equipment   
14.2    Device test cycle and test solutions   
14.3    3GPP RAN5 Conformance Test   
14.4    Risks   

15    Other Aspect   

GTI Sub-6GHz 5G Device White Paper_v2.0