Capacity and Coverage Increase with Repeaters in UMTS
Mohammad Patwary, Predrag Rapajic, Ian Oppermann · 2003
Due to the limitations of the radio wave propagation, there are possibilities of having zones in the mobile communication system where the direct signal from the base station does not reach the Mobile Station. These zones are conventionally called “dead zones” such as tunnels, shopping malls and other indoor venues. Repeaters are the most effective and an efficient way to provide the mobile service guarantee from both operator and user point of view. Besides that, operators use repeater to extend network coverage, which leads to a capacity cut off due to the repeater noise. We proposed to consider repeater to increase capacity for urban areas where path loss exponent is more than 3.4. In this paper we analyze the system capacity and coverage for both uplink and downlink with the 3GPP recommended repeater.