PC5 Sidelink
The 3GPP direct radio interface used for device-to-device V2X communication without routing traffic through the cellular network.
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The problem
Why PC5 exists
This section requires approved editorial content.
No substitute explanation has been generated for why PC5 Sidelink exists.
Operating model
How PC5 works
The approved explanation should connect physical systems, communications, data, security, and operating responsibility.
PC5 sidelink allows compatible V2X devices to exchange data directly, including outside cellular-network coverage. LTE-V2X and NR-V2X define different sidelink generations and capabilities over this interface. PC5 describes the direct communication path, not the complete C-V2X application, message, or security stack.
Documented activity
Real-world applications
Examples come from verified deployment relationships rather than template-generated use cases.
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No substitute explanation has been generated for real-world applications.
Knowledge database
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Related technologies
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Evidence and relationships
Supporting database
Structured records connected to this technology through reviewed Directus relationships.
Commercial systems
Products
Qualcomm C-V2X 9150
implements_or_enablesQualcomm
Interoperability
Standards
Release 14
Introduced initial LTE-based Cellular V2X specifications supporting direct vehicle communications and network-assisted V2X services.
3GPP TS 23.285
3GPP TS 23.285 defines the LTE-system architecture, procedures, and interfaces supporting V2X communication. It matters to V2X because it gives independently developed systems a common technical contract.
3GPP TS 24.386
3GPP TS 24.386 defines protocol procedures between user equipment and control functions for V2X authorization and configuration. It matters to V2X because it gives independently developed systems a common technical contract.
3GPP TS 36.321
3GPP TS 36.321 defines LTE medium-access procedures, including resource handling for sidelink communication. It matters to V2X because it gives independently developed systems a common technical contract.
3GPP TS 36.331
3GPP TS 36.331 defines LTE radio-resource-control signaling, including configuration relevant to sidelink V2X. It matters to V2X because it gives independently developed systems a common technical contract.
3GPP TS 38.321
3GPP TS 38.321 defines 5G medium-access procedures used to schedule and operate NR radio links, including sidelink. It matters to V2X because it gives independently developed systems a common technical contract.
3GPP TS 38.331
3GPP TS 38.331 defines 5G radio-resource-control signaling, including configuration of NR sidelink. It matters to V2X because it gives independently developed systems a common technical contract.
SAE J3161/1
SAE J3161/1 defines minimum LTE-V2X on-board performance for V2V safety applications. It matters to V2X because it gives independently developed systems a common technical contract.
Institutions
Organizations
industry_consortium
Partnership of standards organizations producing cellular system specifications, including LTE-V2X and NR-V2X.