5G • 5G-Advanced (Rel-18)
UL Multi-TRP PUSCH
Uplink Multi-TRP Transmission Repetition and Multiplexing
Enables a mobile user to transmit PUSCH uplink packets simultaneously or repeatedly to multiple base station towers, achieving ultra-high uplink reliability.
Technical Explanation
In industrial factories and automated ports, losing an uplink sensor packet or robotic emergency stop command can halt production lines. Rel-18 UL Multi-TRP PUSCH allows a UE to transmit uplink data using multiple spatial relations toward two distinct base station towers, achieving 99.999% uplink reliability through spatial diversity and multi-site soft combining.
Key Functions
- Transmits identical or complementary PUSCH codewords toward geographically separate TRPs
- Achieves five-nines (99.999%) uplink reliability for mission-critical industrial URLLC
- Supports dynamic multi-site receiver combining across high-speed fronthaul networks
- Mitigates severe local shadowing and physical line-of-sight obstruction
Specifications
3GPP TS 38.214, TS 38.211 (Rel-18)
Interfaces
Uu (PUSCH)Fronthaul
Related 5G Concepts
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