Qualcomm X105 5G Modem-RF Brings Release 19 and 14.8 Gbps Speeds

Qualcomm X105 5G Modem-RF

The Qualcomm X105 is the first modem-RF system in the world that is ready for 3GPP Release 19. It allows for 6G development and testing and supports 5G connectivity up to 14.8 Gbps download and 4.2 Gbps upload peak data speeds. The Qualcomm X105 introduces innovations in the first quad-frequency (L1, L2, L5, L6) GNSS engine and integrated 5G NR-NTN support for video, data, and voice over satellite, building on Qualcomm Technologies’ decades-long leadership in connectivity. It also achieves notable improvements in data speeds and power efficiency.

The Qualcomm X105 accelerates the adoption of 5G Advanced across smartphones, FWA, automobiles, XR, PCs, and IoT by offering unparalleled performance, power efficiency, and spectrum flexibility. The Qualcomm X105 5G Modem-RF, which is powered by the 5th-generation Qualcomm 5G AI Processor, uses agentic AI inside the modem to enhance performance and user experience in social media, video calling, and mobile gaming. It has a number of firsts in the world, including a 6nm node RFIC transceiver (sub-6/mmW), reducing power consumption by 30% and reducing PCB footprint by 15%.

Qualcomm X105 5G Modem

Qualcomm X105 Modem-RF System Specifications:

• Peak Data Rates:
  • Downlink: Up to 14.8 Gbps (FR1 + FR2), up to 13.1 Gbps (FR1 only)
  • Uplink: Up to 4.2 Gbps
• Downlink Features:
  • Carrier Aggregation supporting 6F+T CA (up to 500 MHz bandwidth) with 1024-QAM modulation
  • Support for both TDD and FDD modes with 1024-QAM
  • Enhanced Turbo DSDA, including Multi-SIM Carrier Aggregation, enabling up to 60% higher throughput
  • 3rd-generation 6Rx architecture for smartphones and FWA CPEs, delivering ~10% improved downlink performance compared to X85
• Uplink Features:
  • Switched uplink with support for up to 3 Component Carriers (3CC)
  • 3GPP Release 17 switched uplink with Multi-SIM enhancements for DSDA uplink
  • Configurable transmit chains: 2Tx, 3Tx, and 4Tx
  • Supplemental uplink (SUL) support with TDD
• Frequency and Connectivity Support:
  • Coverage across all global 5G frequency bands (0.6 GHz to 41 GHz)
  • NB-IoT support for extended coverage scenarios
  • Compatibility with NTN (Non-Terrestrial Network) bands
• Performance Enhancement Technologies:
  • Smart Transmit Plus with enhanced uplink optimization and spatial averaging
  • Advanced RFFE integration, including:
    • QET8200 Envelope Tracker for improved efficiency and reduced footprint in FR1
    • L-PAMiDS for low and mid bands, enabling Power Class 2 for single-chain FDD
• Power Optimization:
  • Integrated Qualcomm 5G PowerSave technologies
  • Efficiency gains from a 6 nm RF transceiver (RFIC) architecture
  • Support for 3GPP Release 17 power-saving features
• Cellular Technology Support:
  • 3GPP Release 19-ready hardware architecture
  • FR1 + FR2 Carrier Aggregation
  • Downlink CA up to 500 MHz bandwidth with 1024-QAM
  • 6-layer and 8-layer MIMO support
  • Uplink CA: FDD + FDD (sub-6 GHz)
  • Downlink CA: FDD + TDD (sub-6 GHz) with mmWave dual connectivity
  • Support for Dynamic Spectrum Sharing (DSS)
  • Backward compatibility: 4G LTE, WCDMA, LAA, GSM/EDGE, CBRS, mmWave
  • Network modes: 5G SA and NSA
• GNSS Capabilities:
  • Quad-frequency GNSS (L1, L2, L5, L6)
  • Multi-constellation support with enhanced positioning accuracy
• AI-Driven Features (Qualcomm 5G Agentic AI Suite):
  • Intelligent OTT traffic classification (e.g., chatbots, social media)
  • 5G gaming traffic prioritization
  • Seamless 5G-to-Wi-Fi handover optimization
  • Adaptive antenna management (8Rx / 6Rx / 4Rx) for mobile and FWA devices
  • AI-based sensing for:
    • Network congestion detection and mitigation
    • Mobility-aware RF optimization

Qualcomm X1055G Modem RF Info graphic

The Qualcomm X105 Modem-RF system’s R19-ready architecture is intended to hasten the adoption of 5G Advanced in smartphones, fixed wireless access, mobile broadband, automobiles, XR, PCs, robotics, and industrial IoT. China Telecom, China Mobile, China Unicom, Deutsche Telecom, KDDI, Telstra, T-Mobile, and NTT DOCOMO are among the international operators demonstrating support.

Qualcomm Fifth Generation 5G Modem-RF with Agentic AI

The Qualcomm X105 5G Modem-RF was unveiled at the 2026 Mobile World Congress. Customers are currently receiving samples of the X105 5G/6G modem, and commercial devices are anticipated in the second half of this year. Check out the press release section and the Qualcomm X105 5G Modem-RF webpage for additional information.

Images used courtesy of Qualcomm