5G • Services
PSSCH
Physical Sidelink Shared Channel
Main physical channel carrying direct vehicle-to-vehicle payload data and 2nd-stage SCI.
Technical Explanation
The PSSCH carries the actual automotive safety messages (CAM/DENM), sensor sharing data, or video feeds. It also multiplexes 2nd-stage SCI (Format 2-A/2-B) which conveys source/destination Layer 2 IDs, HARQ process numbers, and CSI feedback triggers.
Key Functions
- Transports user plane vehicle telemetry, cooperative awareness, and sensor data
- Carries 2nd-stage Sidelink Control Information (SCI Format 2-A/2-B)
- Supports high-throughput QAM modulations and MIMO spatial streams
Specifications
3GPP TS 38.211, TS 38.214
Interfaces
PC5
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