6G MWC 2026: Compute Takeover, Spectrum Limits, Open Wars

🔑 Enhanced Key Takeaways

• •3GPP Release 19 began 6G requirements work in 2024, with Release 21 expected to finalize technical specifications by late 2028, enabling first commercial deployments around 2030[2][3][4].
• •6G targets terahertz (THz) and sub-THz frequencies for data rates up to 1 Tbps, but faces challenges like power amplifier efficiency limits and thermal management at 5-10W/cm² heat flux[4][5].
• •World Radio Conference 2023 identified key spectrum bands including sub-7 GHz, FR3 (7-24 GHz), and sub-THz for 6G harmonization, with 3GPP recommending 200 MHz channel bandwidth at 7 GHz carrier frequency in December 2024[3][4][5].
• •National 6G programs in USA, China, Japan, South Korea, and Europe drive R&D with significant funding, such as South Korea's $324.5 million plan announced in 2023[4][5].

🛠️ Technical Deep Dive

• •Peak data rates: 100 Gbps to 1 Tbps, with several hundred Gbps in specific scenarios[2][5].
• •Latency: Sub-millisecond end-to-end, down to 0.1 microseconds or less than 100 microseconds[1][2][4].
• •Connection density: Up to 100 million devices per km²[1][5].
• •Mobility: Reliable connections at speeds up to 1,000 km/h[1].
• •Frequency bands: THz/sub-THz (100-300 GHz), FR3 (7-24 GHz), with 200 MHz channel bandwidth at 7 GHz[4][5].
• •Architectures: Ultra-massive MIMO (256-4096 elements), cell-free networks, RIS panels for 60-80% cost reduction, synchronized distributed massive MIMO, extreme MIMO, non-terrestrial networks[2][3][5].
• •AI/ML integration: Native support for deep-learning receivers, prediction-based energy efficiency, improved beam management[3].
• •Spectrum sharing: Multi-Radio Access Technology Spectrum Sharing (MRSS) for 5G/6G coexistence[3].

🔮 Future ImplicationsAI analysis grounded in cited sources

⏳ Timeline