Downlink capacity of UTRAN reusing frequencies of a DVB-T network with negligible influence on DVB-T performance

The paper investigates the possibility of reusing frequencies of a terrestrial digital video broadcasting (DVB-T) network for a UMTS Terrestrial Radio Access Network (UTRAN) with negligible influence on the DVB-T performance. A frequency division duplex (FDD) UTRAN is deployed such that it can reuse all frequencies of the DVB-T network in each DVB-T frequency reuse cluster in the downlink, with a predefined level of (negligible) interference from the UTRAN to DVB-T. The downlinks of both networks can thus coexist in the same frequency spectrum, thereby increasing the spectral efficiency. The uplink of UTRAN-FDD is assumed to operate in traditional non coexistence and is therefore not considered. Close to 100% of the capacity of a non coexisting UTRAN are achievable for typical UTRAN cell sizes, with only marginal increase of outage in the DVB-T network.