This post is about the GSM-R coverage planning. Please read further down to find more guidance.
GSM-R Network Structure - Common Single Network
Advantages:
1. Low costs;
2. Easy radio parameter setting;
3. Efficient use of frequencies;
4. Minimum sites.
Disadvantages:
1. No service is available when a BTS is faulty;
2. Lowest security level
GSM-R Network Structure - Overlapped Redundancy Coverage
Advantages:
1. BTS redundancy design;
2. Medium costs;
3. When BTS C is faulty, BTS A and BTS B can provide continuous coverage.
Disadvantages:
1. Frequent handovers deteriorate service quality;
2. Complicated frequency planning, especially for highly overlapped areas;
3. More sites and large costs in mapping devices.
GSM-R Network Structure---Co-Site Dual-Coverage
Advantages:
1. System-level redundancy design,high security
2. Less requirements on sites (equipment room and tower shared)
3. BTS B takes over services of BTS A immediately after BTS A is faulty.
4. This avoids service interruption due to device faults.
Disadvantages:
1. When frequency sharing is enabled, services will be interrupted for a short time during the device switchover.
Comparison of GSM-R Network Structures
