US: SAE Signal Preemption - LTE-V2X TCP
Description:
This solution is used within Canada and the U.S.. It combines standards associated with US: SAE Signal Preemption with those for V-X: LTE-V2X TCP. The US: SAE Signal Preemption standards include upper-layer standards required to implement signal preemption and priority information flows. The V-X: LTE-V2X TCP standards include lower-layer standards that support connection-oriented vehicle-to-any communications using the Transmission Control Protocol (TCP) over Internet Protocol version 6 (IPv6) over C-V2X in the 5.9GHz spectrum.Relevant Regions:
- Canada
- United States
Comm Profile: V-X: LTE-V2X TCP
Comm Class: LAN - Local Area Network
Standards in Profile:
| Level | Standard |
|---|---|
| Access | 3GPP LTE-V2X (PC5) |
| Mgmt | 3GPP: E-UTRA - Radio Resource Control |
| Mgmt | 3GPP: NAS protocol for EPS |
| Mgmt | SAE J3161 LTE-V2X Deployment Profiles |
| Security | Bundle: IEEE 1609.2 |
| TransNet | Bundle: IPv6 |
| TransNet | IETF RFC 9293 TCP |
Data Profile: US: SAE Signal Preemption
Standards in Profile:
| Level | Standard |
|---|---|
| Facilities | SAE J2735 DSRC Message Set |
| Facilities | SAE J2945 DSRC Common Design Elements |
| ITS Application Entity | CTI 4501 CI Implementation Guide |
| ITS Application Entity | ISO 19091 V2I for signalized intersections |
| ITS Application Entity | SAE J2735 DSRC Message Set |
| ITS Application Entity | SAE J2945/B Signal Intersection Applications |
Solution Issues Severity: 10
The severity issue score calculation only includes issues associated with standards that are included by default.
Solution Issues:
| Default | Severity | Name | Type | Description |
|---|---|---|---|---|
| True | Low | Data not defined in standard format | ITS Info Gap | The definition of data concepts should conform to ISO 14817-1 to promote reuse among ITS. |
| True | Low | Not a standard (minor) | Standardization Gap | The document is publicly available and widely used but it is not currently a formal standard. |
| True | Low | Overlap of standards (Minor) | Overlap | Multiple standards have been developed to address this information and it is unclear which standard should be used to address this specific information flow. However, as this information transfer is infrastructure-based, agencies can deploy a solution throughout their jurisdiction with minimal downside and can use gateways to connect to other technologies. |
| True | Low | Time synchronization | Performance / Applicability Gap | The standard requires a highly accurate time shared between participants. |
| True | Medium | Not a standard | Standardization Gap | The document may be publicly available but it is not currently available as a formal standard and details may change prior to adoption as a standard. |
| True | Medium | Uncertainty about trust revocation mechanism | Security Gap | The mechanisms used to prevent bad actors from sending authorized messages is unproven. |