| 1. | EXECUTIVE SUMMARY |
| 1.1. | Growth of Mobile Traffic Slows |
| 1.2. | Competing Narratives Regarding the Future of Traffic |
| 1.3. | 6G Rollout Timeline |
| 1.4. | 6G Industry Update - Vendors |
| 1.5. | Global 6G government-aided initiatives - an overview |
| 1.6. | Open RAN for 6G |
| 1.7. | Technical Targets for High Data-Rate 6G Radios |
| 1.8. | Navigating Challenges and Solutions in mmWave Phased Array Systems |
| 1.9. | Overview of transistor performance metrics of different semiconductor technologies |
| 1.10. | Overview of semiconductor technology choice for THz RF |
| 1.11. | Antenna Module Design Trends for 6G |
| 1.12. | Benchmarking Three Antenna Packaging Technologies |
| 1.13. | New opportunities for low-loss materials in mmWave 5G and 6G |
| 1.14. | Typical Dk and Df Values for 6G Applications |
| 1.15. | Benchmark - Dk vs Df of over 120 low-loss organic, inorganic & composite materials |
| 1.16. | Evolution of MIMO in Wireless Communications |
| 1.17. | Why Cell-Free MIMO |
| 1.18. | 6G - Key Applications Overview |
| 1.19. | Can NTNs Provide 5/6G Service? |
| 1.20. | Features comparison: HAPS vs LEO vs GEO |
| 1.21. | RIS - Overview |
| 1.22. | Commercial opportunities against readiness levels of RIS |
| 1.23. | RIS - Forecast Summary (1) |
| 1.24. | RIS Revenue Forecasts |
| 1.25. | 6G Base Stations (>100 GHz) Forecast |
| 1.26. | Access more with an IDTechEx subscription |
| 2. | INTRODUCTION TO WIRELESS COMMUNICATIONS |
| 2.1. | Evolving mobile communication focus |
| 2.2. | 5G Rollout Continues at Pace |
| 2.3. | Why Develop 6G? |
| 2.4. | Burdens on Network Operators |
| 2.5. | Growth in Mobile Data Traffic |
| 2.6. | Growth of Mobile Traffic Slows |
| 2.7. | Competing Narratives Regarding the Future of Traffic |
| 2.8. | Traffic Growth Plateau in China |
| 2.9. | Will Wireless Become Another Utility? |
| 2.10. | Video Streaming Increasingly the Dominant Application of Traffic |
| 2.11. | Is There Room for More Streaming Growth? |
| 2.12. | The Case for Faster Wireless Networks |
| 2.13. | Applications and Required Bandwidths |
| 2.14. | Will AI Drive Traffic Up? |
| 2.15. | AI Workload, On-Device vs Cloud |
| 2.16. | Autonomy and Future Mobility |
| 2.17. | Platooning |
| 2.18. | Lessons From 5G Rollout |
| 3. | INTRODUCTION TO 6G |
| 3.1. | What is 6G? |
| 3.2. | IMT-2030 Enhanced Performance Requirements |
| 3.3. | 6G Rollout Timeline |
| 3.4. | 6G spectrum - which bands are considered? |
| 3.5. | Bands vs Bandwidth |
| 3.6. | 6G Spectrum and Deployment Strategy |
| 3.7. | 6G performance with respect to 5G |
| 3.8. | Frequencies Beyond 100GHz |
| 3.9. | 6G - an overview of key applications |
| 3.10. | 6G - Overview of key enabling technologies (1) |
| 3.11. | 6G - Overview of key enabling technologies (2) |
| 3.12. | Summary: Global trends and new opportunities in 6G |
| 3.13. | DoCoMo, NTT sign 6G pact with Fujitsu, NEC, Nokia |
| 3.14. | Fujitsu teams with NTT and Docomo for 6G trials |
| 4. | 6G DEVELOPMENT ROADMAP FROM KEY REGIONS & PLAYERS |
| 4.1.1. | 6G Industry Update - Vendors |
| 4.1.2. | 3GPP - Global Standards |
| 4.1.3. | 3GPP Working Group Takeaways |
| 4.1.4. | Spectrum for 6G |
| 4.1.5. | Upper 6 GHz band for 5G-Adv and 6G |
| 4.1.6. | Standalone vs Non-Standalone Rollout |
| 4.1.7. | Open RAN for 6G |
| 4.1.8. | Competition for Spectrum in Europe |
| 4.1.9. | Global 6G government-aided initiatives - an overview |
| 4.1.10. | 6G development roadmap - South Korea |
| 4.1.11. | South Korea - mmWave Challenges |
| 4.1.12. | 6G development roadmap - Japan |
| 4.1.13. | Funding models to research the next mobile communication infrastructure |
| 4.2. | USA |
| 4.2.1. | 6G development roadmap - US |
| 4.2.2. | US Network Operator Overview |
| 4.2.3. | CAPEX Spending of US Network Operators |
| 4.2.4. | FCC Shifts Policy Regarding 6GHz Spectrum Allocation |
| 4.2.5. | Nokia's 6G activity |
| 4.2.6. | Ericsson's 6G activity (1) |
| 4.2.7. | Ericsson's 6G activity (2) |
| 4.2.8. | Ericsson Early 6G Examples |
| 4.2.9. | Huawei's 6G activity |
| 4.2.10. | Samsung's 6G activity |
| 4.2.11. | Samsung's strategy to 6G |
| 5. | 6G RADIO SYSTEM ANALYSIS |
| 5.1. | Technical Targets for High Data-Rate Radios |
| 5.2. | Potential 6G transceiver architecture |
| 5.3. | Overview of key technical elements in 6G radio system |
| 5.4. | Bandwidth and Modulation |
| 5.5. | Bandwidth requirements for supporting 100 Gbps - 1 Tbps radios |
| 5.6. | Bandwidth and MIMO - Challenges and Solutions |
| 5.7. | Key parameters that affect the 6G radio's performance |
| 5.8. | Proof of concepts - achieving beyond 100 Gbps |
| 5.9. | Radio link range vs system gain |
| 5.10. | Hardware Gap |
| 5.11. | The biggest bottleneck in THz region |
| 5.12. | Saturated output power vs frequency (all semiconductor technologies) - 1 |
| 5.13. | Saturated output power vs frequency (all semiconductor technologies) - 2 |
| 5.14. | Receiver Noise - Hardware Challenges |
| 5.15. | Choices of semiconductor for low noise amplifiers (LNA) in 6G |
| 5.16. | Phase noise - hardware challenges |
| 5.17. | Digital signal processing |
| 5.18. | Summary table of key THz Technologies |
| 5.19. | Summary table - key THz Characteristics |
| 6. | POWER CONSUMPTION ANALYSIS OF A 6G RADIO |
| 6.1. | Building blocks for sub-THz radio |
| 6.2. | Power consumption calculation |
| 6.3. | Power consumption of PA scale with frequency |
| 6.4. | Higher frequency poses significant challenges in transmission distance |
| 6.5. | Power Consumption on the Transceiver Side (1) |
| 6.6. | Power Consumption on the Transceiver Side (2) |
| 6.7. | Power Consumption on the Transceiver Side (3) |
| 6.8. | Power Consumption on the Receiver Side |
| 6.9. | Summary (1) |
| 6.10. | Summary (2) |
| 7. | SEMICONDUCTORS FOR 6G |
| 7.1.1. | Introduction |
| 7.1.2. | What to consider when choosing semiconductor technologies for 6G applications |
| 7.1.3. | State of the art RF transistors performance |
| 7.2. | Si-based semiconductor: CMOS, SOI, SiGe |
| 7.2.1. | CMOS - Performance Limitations |
| 7.2.2. | CMOS technology - Bulk vs SOI |
| 7.2.3. | State-of-the-art RF CMOS technology in research and industry |
| 7.2.4. | FDSOI Ecosystem - key players |
| 7.2.5. | Summary - RF CMOS SOI Technology |
| 7.2.6. | SiGe |
| 7.2.7. | State-of-the-art RF SiGe technology in research and industry |
| 7.2.8. | Europe's Efforts in SiGe Development |
| 7.2.9. | Infineon and STMicroelectronics approaches to next generation SiGe BiCMOS |
| 7.2.10. | Summary - RF SiGe technology |
| 7.3. | GaAs and GaN |
| 7.3.1. | Wide Bandgap Semiconductor Basics |
| 7.3.2. | GaN's opportunity in 6G |
| 7.3.3. | GaN-on-Si, SiC or Diamond for RF |
| 7.3.4. | GaN-on-Si power amplifier for 100 GHz? |
| 7.3.5. | State of the art GaN power amplifier |
| 7.3.6. | Summary of RF GaN Suppliers |
| 7.3.7. | RF GaN Fabrication Lines |
| 7.3.8. | GaAs's opportunity for 6G |
| 7.3.9. | State-of-the-art GaAs based amplifier |
| 7.3.10. | Summary of GaAs suppliers |
| 7.3.11. | GaAs vs GaN for RF Power Amplifiers |
| 7.3.12. | Power amplifier technology benchmark |
| 7.4. | InP |
| 7.4.1. | State-of-the-art InP technology |
| 7.4.2. | InP HEMT vs InP HBT |
| 7.4.3. | InP opportunities for 6G |
| 7.4.4. | Heterogenous integration of InP with SiGe BiCMOS |
| 7.4.5. | State-of-the-art InP power amplifiers - the performance and the players |
| 7.5. | Summary of semiconductors for THz communication |
| 7.5.1. | Overview of Si vs III-V semiconductors for 6G |
| 7.5.2. | Challenges regarding semiconductor for THz communications |
| 7.5.3. | Overview of transistor performance metrics of different semiconductor technologies |
| 7.5.4. | Power amplifier benchmark in beyond 200 GHz frequency band |
| 7.5.5. | Power amplifier benchmark in beyond 200 GHz frequency band (2) |
| 7.5.6. | Power amplifier technology benchmark in D band (110 GHz - 170 GHz) |
| 7.5.7. | Overview of semiconductor technology choice for THz RF |
| 7.5.8. | Summary |
| 8. | PHASE ARRAY ANTENNAS FOR 6G |
| 8.1.1. | Antennas for 6G |
| 8.1.2. | Navigating Challenges and Solutions in mmWave Phased Array Systems |
| 8.1.3. | Antenna Size Shrinks With Increasing Frequency |
| 8.1.4. | Antenna approaches |
| 8.1.5. | Challenges in 6G antennas |
| 8.1.6. | Antenna gain vs number of arrays |
| 8.1.7. | Trade off between power and antenna array size |
| 8.1.8. | 5G phase array antenna |
| 8.1.9. | Antenna Manufacturers |
| 8.1.10. | 6G 90 GHz phase array antenna - demonstration from Nokia |
| 8.1.11. | Technology benchmark of phase array in 28, 90, and 140 GHz. |
| 8.1.12. | 140 GHz phase array - transceiver analysis |
| 8.1.13. | Choice of Semiconductor for 140GHz Array |
| 8.1.14. | Considerations when building a 140 GHz phase array |
| 8.2. | Examples of state-of-the-art D-band (110 - 175 GHz) phase array modules |
| 8.2.1. | Samsung's latest THz prototyping wireless Platform with Adaptive Transmit and Receive Beamforming |
| 8.2.2. | 140 GHz THz prototype from Samsung - device architecture |
| 8.2.3. | 140 GHz THz prototype from Samsung and UCSB - IC and antenna fabrication details |
| 8.2.4. | UCSB 135 GHz MIMO hub transmitter array tile module |
| 8.2.5. | Mounting InP PA to the LTCC Carrier |
| 8.2.6. | Fully Integrated 2D Scalable TX/RX Chipset for D-Band (110 to 170GHz) Phased-Array-on-Glass Modules from Nokia |
| 8.2.7. | A proof-of-concept 130 GHz wireless 2x2 line-of-sight (LoS) MIMO - 1 |
| 8.2.8. | A proof-of-concept 130 GHz wireless 2x2 line-of-sight (LoS) MIMO - 2 |
| 8.2.9. | A 136-147 GHz Wafer-Scale Phased-Array Transmitter demo from UCSD - 1 |
| 8.2.10. | A 136-147 GHz Wafer-Scale Phased-Array Transmitter demo from UCSD - 2 |
| 8.2.11. | State-of-the-art D-band transmitters benchmark |
| 9. | PACKAGING TREND FOR 6G |
| 9.1. | Antenna Module Design Trends for 6G |
| 9.2. | Packaging Requirements |
| 9.3. | Choice of Antenna Packaging Technology Options |
| 9.4. | Three ways of mmWave antenna integration |
| 9.5. | Benchmarking Three Antenna Packaging Technologies |
| 9.6. | Next Generation Phased Array Targets |
| 9.7. | Antenna Packaging vs Operational Frequency |
| 9.8. | Trade-Off in Integration Technologies |
| 9.9. | Approaches to Integrate InP on CMOS |
| 9.10. | Antenna Integration Challenges in mmWave |
| 9.11. | AiP vs Discrete Antenna Techniques in Wireless Systems |
| 9.12. | Key Design Considerations for AiP |
| 9.13. | Benchmark of Substrate Materials for AiP |
| 9.14. | Benchmark of Substrate Technologies for AiP |
| 9.15. | Antenna on Chip (AoC) for 6G |
| 9.16. | Multiple transmitter coexistence for 5G and 6G RF FEM (from Skyworks Solutions) (1) |
| 9.17. | Multiple transmitter coexistence for 5G and 6G RF FEM (from Skyworks Solutions) (2) |
| 9.18. | Evolution of Hardware Components from 5G to 6G |
| 9.19. | Packaging Challenges for Freq. >100 GHz |
| 9.20. | mmWave AiP ecosystem |
| 9.21. | AiP for 5G and 6G, 2024-2034 |
| 10. | LOW-LOSS MATERIALS FOR MMWAVE AND THZ |
| 10.1. | New opportunities for low-loss materials in mmWave 5G and 6G |
| 10.2. | Typical Dk and Df values requirements by applications |
| 10.3. | Important factors to consider for the selection of low-loss materials |
| 10.4. | Overview of low-loss materials for 5G/6G |
| 10.5. | Benchmark - Dk vs Df of over 120 low-loss organic, inorganic & composite materials |
| 10.6. | Status and outlook of commercial low-loss materials for 5G, 6G, and THz PCBs/ components |
| 10.7. | More info about 5G and 6G Low Loss Materials |
| 11. | MIMO FOR 6G |
| 11.1. | Evolution of MIMO in Wireless Communications |
| 11.2. | Challenges with mMIMO |
| 11.3. | Distributed MIMO |
| 11.4. | Cell-free Massive MIMO (Large-Scale Distributed MIMO) |
| 11.5. | Considerations for 6G Massive MIMO |
| 11.6. | Why Cell-Free MIMO |
| 11.7. | Benchmarking of Different MIMO Approaches |
| 11.8. | Benefits and Challenges of Cell-Free MIMO |
| 11.9. | An Example of Antenna Processing Unit for Cell-Free mMIMO |
| 12. | 6G NON-TERRESTRIAL NETWORKS (NTN) |
| 12.1. | Executive Summary |
| 12.2. | The Global Connectivity Gap |
| 12.3. | Large Regional Disparity in Connectivity Gaps |
| 12.4. | Development of LEO NTNs |
| 12.5. | Falling Launch Costs Enable NTNs |
| 12.6. | Benchmark of different types of NTN technologies |
| 12.7. | Features comparison: HAPS vs LEO vs GEO |
| 12.8. | Direct to Cell |
| 12.9. | Impact of Distance on Beam Propagation |
| 12.10. | Free Space Path Loss |
| 12.11. | Comparison of NTNs for D2C |
| 12.12. | Can NTNs Provide 5/6G Service? |
| 12.13. | D2C Business Models |
| 12.14. | Economics of Starlink and D2C |
| 12.15. | Overview of enabling technologies for non-terrestrial networks |
| 13. | RECONFIGURABLE INTELLIGENT SURFACES (RIS) AND METAMATERIALS |
| 13.1.1. | RIS - Executive Summary (1) |
| 13.1.2. | RIS - Executive Summary (2) |
| 13.1.3. | RIS - Overview |
| 13.1.4. | Challenges of High-frequency Communication |
| 13.1.5. | Overview of the main characteristics and parameters of smart EM devices |
| 13.1.6. | Heterogeneous smart electromagnetic (EM) environment |
| 13.1.7. | Technology benchmark of RIS with other smart EM devices |
| 13.1.8. | RIS vs Massive MIMO |
| 13.1.9. | RIS vs traditional reflecting array antennas |
| 13.1.10. | RIS vs Relay |
| 13.1.11. | RIS vs Relay technology benchmark |
| 13.1.12. | Overview of the main characteristics and parameters of smart EM devices |
| 13.1.13. | Operational Frequency for RIS |
| 13.1.14. | Key drivers for RIS |
| 13.1.15. | Key Challenges with RIS |
| 13.1.16. | Challenges for fully functionalized RIS environments |
| 13.1.17. | Key use cases of RIS |
| 13.2. | RIS Hardware |
| 13.2.1. | Metamaterials - Overview |
| 13.2.2. | Metamaterials for RIS in telecommunication |
| 13.2.3. | Multiple competing metamaterial manufacturing methods |
| 13.2.4. | More info about Metamaterials |
| 13.2.5. | RIS Architecture |
| 13.2.6. | RIS Signal Propagation Control |
| 13.2.7. | Passive, hybrid, and active RIS |
| 13.2.8. | Passive, Hybrid, and Active RIS Benchmarking |
| 13.2.9. | Active RIS - where's its use case? - 1 |
| 13.2.10. | Active RIS - where's its use case? - 2 |
| 13.2.11. | Different modes of RIS - Benchmark |
| 13.2.12. | Two design approaches for Transmissive RIS |
| 13.2.13. | Transmittive RIS device: 1 bit vs 2 bit design |
| 13.2.14. | Transmittive RIS device: continuous phase shift design |
| 13.2.15. | Simultaneously transmitting and reflecting (STAR) reconfigurable intelligent surfaces (RISs) |
| 13.2.16. | How RIS can achieve efficient passive beamforming |
| 13.2.17. | RIS Power Paradox: Efficiency Challenges in High Frequency Communication Networks |
| 13.2.18. | Enhancing RIS Deployment: Insights from Computer Simulations |
| 13.2.19. | Materials and Manufacturing for RIS |
| 13.2.20. | Liquid crystal polymers (LCP) are a promising method for creating active metasurfaces |
| 13.2.21. | Comparing LCP and semiconductor RIS |
| 13.2.22. | Challenges in RIS |
| 13.2.23. | Typical RIS applications in a wireless network |
| 13.2.24. | RIS Use-Cases by Location |
| 13.2.25. | The current status of reconfigurable intelligent surfaces (RIS) |
| 13.2.26. | NANOWEB is an example of passive RIS |
| 13.2.27. | Pivotal Commware develops holographic beamforming in hybrid RIS |
| 13.2.28. | Pivotal Commware Secured US$102 Million funding in 2023 to accelerate mmWave Wireless FWA Deployment |
| 13.2.29. | Greenerwaves |
| 13.2.30. | ZTE RIS solutions for 5G advanced and 6G |
| 13.2.31. | ZTE identifies two key RIS applications for 6G |
| 13.2.32. | Telecom operators' activities in RIS |
| 13.2.33. | RISE-6G investigates use of metamaterials in wireless communications |
| 13.2.34. | Metal oxide in glass windows causes interference |
| 13.2.35. | Building integrated transparent antennas for high frequency communication |
| 13.2.36. | Making low-emissivity coatings frequency selective |
| 13.2.37. | Alcan Systems develops transparent liquid crystal phased array antennas |
| 13.3. | RIS vs Other Smart Electromagnetic (EM) Devices Benchmark |
| 13.3.1. | Commercial opportunities against readiness levels of RIS |
| 13.3.2. | Huawei's 6G RIS prototype demo |
| 13.3.3. | Huawei's 6G RIS prototype demo results |
| 13.4. | RIS Forecast |
| 13.4.1. | RIS Revenue Forecasts |
| 13.4.2. | RIS Area Forecast, 2025-2036 |
| 14. | 6G USE-CASES BEYOND MOBILE COMMUNICATIONS |
| 14.1. | The Case for Faster Wireless Networks |
| 14.2. | 6G - Key Applications Overview |
| 14.3. | Wireless cognition |
| 14.4. | THz Sensing - Overview |
| 14.5. | Operational Principles of THz Sensing |
| 14.6. | Apple's patents on THz sensor for gas sensing and imaging |
| 14.7. | THz Imaging - an overview |
| 14.8. | THz sensing and imaging - examples from Terasense |
| 14.9. | THz precise positioning - an overview |
| 14.10. | Integrated Sensing and Communication (ISAC) prototype from Huawei (1) |
| 14.11. | Integrated Sensing and Communication (ISAC) prototype from Huawei (2) |
| 14.12. | Digital Twinning |
| 14.13. | Overview of land-mobile service applications in the frequency range 275-450 GHz |
| 14.14. | Potential use cases in 275-450 GHz (1) |
| 14.15. | Potential use cases in 275-450 GHz (2) |
| 15. | MARKET FORECASTS |
| 15.1. | RIS - Forecast Summary (1) |
| 15.2. | RIS - Forecast Summary (2) |
| 15.3. | RIS Revenue Forecasts |
| 15.4. | RIS Area Forecast, 2025-2036 |
| 15.5. | 6G Base Stations (>100 GHz) Forecast |
| 16. | COMPANY PROFILES |
| 16.1. | Alcan Systems |
| 16.2. | Ampleon |
| 16.3. | Atheraxon |
| 16.4. | Commscope |
| 16.5. | Ericsson (2020) |
| 16.6. | Ericsson (2021) |
| 16.7. | Ericsson (2025) |
| 16.8. | Freshwave |
| 16.9. | GaN Systems |
| 16.10. | Huawei |
| 16.11. | Kyocera |
| 16.12. | Metamaterials |
| 16.13. | Nokia |
| 16.14. | NXP Semiconductors |
| 16.15. | Omniflow |
| 16.16. | Picocom |
| 16.17. | Pivotal Commware |
| 16.18. | Renesas Electronics Corporation |
| 16.19. | Solvay |
| 16.20. | TMYTEK |
| 16.21. | ZTE |