5G • Services
PSCCH
Physical Sidelink Control Channel
Physical channel carrying Sidelink Control Information (SCI) scheduling direct vehicle data transmissions.
Technical Explanation
The PSCCH occupies the first few subcarriers of an allocated sidelink resource. It transmits 1st-stage Sidelink Control Information (SCI Format 1-A) indicating priority, time/frequency resource reservation, and DMRS patterns, alerting surrounding vehicles to incoming safety data on PSSCH.
Key Functions
- Transmits 1st-stage Sidelink Control Information (SCI Format 1-A)
- Broadcasts resource reservation indicators and packet priority
- Enables surrounding vehicles to decode and avoid conflicting resources
Specifications
3GPP TS 38.211, TS 38.213
Interfaces
PC5
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