Abstract
The mobile telecommunication system provides voice, data and video communications between stations, Operation Control Centers, depots and all necessary areas and facilities. The Preliminary Design is an overall system design that elaborates on the proposed system configuration with an emphasis on how the interface requirements are to be achieved. The contractor verified the preliminary design for the coverage of the wireless access network with respect to the General Specification (GS) and Particular Specification (PS) of the mobile telecommunication system. The mobile service provider (Telco) should ensure that the mobile network coverage in Mass Rapid Transit tunnels and underground stations provide 95% coverage for all the defined areas. The Telco should ensure seamless handover success rate > 98% and proposed the required overlap distance in between the antennas. Based on the design assumption made on the link budget, the indoor system design to be aligned within 15m radius coverage, which will contribute to distance in between antennas in between antennas will be at 30m horizontal distance. This placement can be varied within 10-15% and subject to line of sight, physical obstruction or fixing constraint at side.
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