5G • RAN
PUSCH
Physical Uplink Shared Channel
Main physical uplink channel carrying user data, multiplexed UCI, and higher-layer RRC signaling.
Technical Explanation
PUSCH carries user plane payload and RRC signaling from the UE to the gNodeB. It supports CP-OFDM (for high throughput and MIMO up to 4 layers) and DFT-s-OFDM (for low PAPR and cell-edge coverage). UCI can also be multiplexed onto PUSCH when control and data collide in the same slot.
Key Functions
- Transmits uplink user data packets and RRC connection messages
- Supports up to 4 spatial layers in uplink MIMO
- Multiplexes UCI (HARQ-ACK, CSI) with user data via rate matching
Specifications
3GPP TS 38.211, TS 38.212, TS 38.214
Interfaces
Uu
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