Case Studies

Seven Hills Hospital - Mumbai, India Memorial Football Stadium - Oklahoma, US Rasuna Epicentrum - Jakarta, Indonesia Larnaca International Airport - Cyprus Milan Metro Tunnel - Milan, Italy

Milan Metro Tunnel - Milan, Italy

Milan Metro Tunnel
  1. built under the Italy's second largest city and capital of the North
  2. in Sept. 2005, the Milan metro system is 74.1 km long (51.5 km underground) and has 87 stations (74 underground)
  3. the "red line" interconnect the city from North-East side to West side, where braches out in two directions: towards North-West and South-West
  4. the "red line" is the first line of Milan subway
    1. first stretch built in 1964 by CommsCon Italia
    2. most recent tracts in 2005:
      1. 8th lot: North-West branch (Molino Dorino)
      2. 9th lot: South-West branch (Primaticcio)
Milan Metro Tunnel

Coverage requirement

  1. Number of systems/bands: GSM1800, UMTS2100
  2. Number of operators per band:
    1. GSM1800: 3 operators
    2. UMTS2100: 4 operators
  3. Maximum capacity per operator: one BTS per band per operator
    1. GSM1800: 4+4+4 per BTS
    2. UMTS2100: 1+1+1+1 TRX per BTS
  4. Number of sectors:
    1. 8th lot: 3 sectors
    2. 9th lot: 2 sectors
  5. Signal criteria:
    1. GSM1800: -85dBm
    2. UMTS2100:
      1. -85dBm in stations
      2. -90dBm in tunnels inside the train
Milan Metro Tunnel

Teko Telecom Solution

Milan Metro Tunnel
  1. High Power RUs: 25 for 8th lot and 11 for 9th lot
  2. Cascade configuration:
    1. 2 wavelengths for 8th lot and 3 wavelengths for 9th lot
    2. e.g. 1 RU located in the metro station and 1 RU installed in the tunnel
    Milan Metro Tunnel
  3. Simplified custom POI allowing costs saving, high compactness and customized interface with BTS/Node-B
  4. Uplink Diversity for UMTS signals
Milan Metro Tunnel