Level 2 specification
NR/L2/TEL/30127
GSM-R Air Interface Functionality, Availability Management and Compliance Validation
Issue 4, 02 June 2018 · GSM-R & radio
Clause map — what each clause deals with
| 1 | Purpose | How GSM-R air-interface functionality and availability are managed and validated |
| 2 | Scope | Which lines are in scope (technical file) |
| 3 | Abbreviations/Definitions | Abbreviations — Abis, air interface, RxLev, RxQual |
| 4.1 | Categories of GSM-R System Performance | The three performance categories — coverage, mobility, service delivery |
| 4.2 | KPI Targets | KPI targets table |
| 4.3 | Reporting Schedule | Quarterly reporting |
| 4.4 | Data Collection | Data collection frequency |
| 4.5 | Data Archive Duration | Archive duration |
| 4.6 | Event Management | Who resolves KPI failures |
| 5.2.2 | Radio Coverage Level | Radio coverage level — the minimum received signal strength (RxLev, in dBm) the cab radio must see |
| 5.2.3 | Radio Coverage Quality | Radio coverage quality (RxQual) |
| 5.2.4 | GSM-R Network Connectivity | Network connectivity loss |
| 5.2.5 | Interference | Interference and intermodulation |
| 5.3.2 | Cell Handover | Cell handover performance |
| 5.3.3 | Cell Handover Reason | Handover reasons — power budget vs quality |
| 5.4.2 | Service Registration | Service registration |
| 5.4.3 | Point to Point Calls | Point-to-point (priority) calls |
| 5.4.4 | Voice Broadcast Calls | Voice broadcast calls |
| 5.4.5 | Voice Group Call Service | Voice group calls |
| 5.4.6 | Operational USSD Messages | Operational USSD messages |
| 5.4.7 | Voice Call Quality of Services | Voice call quality baseline |