TAILIEUCHUNG - Urban Wireless Coverage Street-Level Service

The increase in popularity of wireless devices has caused mobile subscribers to demand coverage anytime and anywhere. Wireless service providers are challenged with cost-effectively providing adequate coverage and capacity precisely where it is needed. This is particularly difficult in urban areas due to zoning restrictions and congestion from tall buildings that limit the placement of cell sites for additional capacity. | CASE STUDY Background The increase in popularity of wireless devices has caused mobile subscribers to demand coverage anytime and anywhere. Wireless service providers are challenged with cost-effectively providing adequate coverage and capacity precisely where it is needed. This is particularly difficult in urban areas due to zoning restrictions and congestion from tall buildings that limit the placement of cell sites for additional capacity. The Problem A global wireless service provider was providing service to a busy urban area in Manhatten. The existing cell site was located on the 12th story of a 14-story building at the intersection of two busy streets. Three sectors of the cell site were being used to provide macro coverage with antennas located on the roof of the building. A fourth sector was used to provide street-level coverage via an analog fiber transport system with antennas located on the side of the building. However the coverage in the area was not adequate to meet subscriber needs. The ADC Solution ADC leveraged the existing cell site by installing its all-digital Digivance Long-Range Coverage Solution LRCS to replace the analog transport system. Digivance LRCS uses patented digitized RF transport technology to extend seamless wireless coverage from existing cell sites to hard-to-reach areas or distribute capacity from centralized radio suites. CASE STUDY The Digivance LRCS Host Unit was installed in a 19-inch rack alongside the radios in the 12th floor cell site. Four radios were connected to the host unit. ADC s wavelength division multiplexing WDM feature allowed the service provider to reduce the number of fiber cables required keeping additional fibers free for other applications. The Digivance LRCS Remote Unit was installed in the basement of the building. The versatility of the system allowed the service provider to choose to have the unit wall- or pedestal-mounted. Two antennas mounted on the outside of the building channeled wireless .

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