(New)GTI Sub-6GHz 5G Device Whitepaper_v4.0

2019-06-23 18:43:40 | Source:

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
6.2.11  Spectrum sharing
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    41
8.2 Uplink Strategies for NR deployment
8.2.1 Uplink strategies for Standalone Operation
8.2.2 Uplink strategies for Non-Standalone Operation
8.3 UE Modem Challenges and Solutions for Supporting Standalone and Non-Standalone NR
8.3.1 UE modem architecture for NR + LTE dual connectivity
8.3.2 UE modem challenges and solutions for SA
8.4 Network Selection
8.5 NSA/SA Mode Switch


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
11.5 Dynamic Power Sharing
11.5.1 Comparison between Equal and Dynamic Power Sharing
11.5.2 Comparison between Dynamic Power Sharing and Single Uplink Operation
11.5.3 3GPP Specifications for SUO and DPS


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
13.4.5 Periodic PDCCH monitoring
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 Market strategy


14.1 Status icon related to 5G
14.2 USIM application and UICC to access NR network
14.2.1 5G USIM Characteristics
14.2.2 Different type of UICCs


15 UE Function and Performance Enhancement


15.1 DC/CA enhancement
15.1.1 Uplink power control for supporting NR-NR DC
15.1.2 Cross-carrier scheduling with different numerologies
15.1.3 Support of efficient and low latency serving cell activation
15.2 MIMO enhancement
15.2.1 CSI improvement for MU-MIMO
15.2.2 Multi-TRP/Panel
15.2.3 Multi-beam Operation
15.2.4 Full power transmission in uplink
15.2.5 PAPR reduction


16 Test Requirements


16.1 Test areas for 5G sub-6G and challenges
16.1.1 Test challenges
16.1.2 Requirement for test equipment
16.2 Device test cycle and test solutions
16.3 3GPP RAN5 Conformance Test
16.3.1 Target dates
16.3.2 Progress to-date
16.4 Risks


17 Other Aspect

GTI Sub-6GHz 5G Device Whitepaper_v4.0111.jpg

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