GSM-R Network Service Product Presentation
Challenges for GSM-R on high-speed railway
High-speed
- Doppler shift
- Frequent handover
- Large overlapping area coverage
Poor KPI
- Low CSSR , High CDR
- Call delay increases
- Low handover success rate
- Bit error rate increases
Poor System Security
- Frequent call drop, impacts business development
- Poor train dispatch voice quality, affects traffic scheduling
- Poor train control data quality , affects traffic security