Computation of block-edge masks for mobile communication network base stations in the 790–862 MHz digital dividend spectrum

Abstract

This paper reports on a study undertaken within the CEPT SE42 project team, with the objective of deriving regulatory radiation limits which mitigate the impact of adjacentchannel interference from fixed/mobile communication network base stations (BSs) in the Digital Dividend spectrum (790-862 MHz) to digital terrestrial television (DTT) services below 790 MHz. A novel stochastic approach for the calculation of BS block-edge mask (BEM) out-of-block (or baseline) limits is presented. Results indicate that, for a typical BS in-block EIRP of 59 dBm/(10 MHz) or greater, the fraction of locations in which a DTT receiver would suffer unacceptable levels of interference does not improve significantly with a reduction in the BS BEM baseline EIRP limit below 0 dBm/(8 MHz). This is due to the finite frequency selectivity of the DTT receivers. It is also shown that for in-blockEIRPs below 59 dBm, the baseline EIRP limit should be reduced proportionately in order for the DTT location failure rate to be broadly independent of the communication network deployment geometry.Index Terms-Co-existence analysis, Adjacent-channel interference, Digital Dividend, Spectrum management, Block-edge mask.

Available Channel Measurement in TV Whitespace with Adjacent Channel Interference

“…7 shows that how many available TVBD users can stay around DTV receiver. In the near range from DTV TX and DTV RX, the dRSS are strong, so with the weak interference from the secondary user not become important impaction to the DTV signal [12]. Thus, the number of unlicensed users in this area is very big, e.g.…”

“…In (12), ACIR is used as the rate coefficient when determining the interference power from TVDB at the DTV receiver. When multiply with ACIR -1 , the TVBD transmitter power will become the interference power sensed in the DTV receiver, and based on this approach, the TVBD can know how much interference that it causes to the DTV RX.…”

European Harmonized Technical Conditions and Band Plans for Broadband Wireless Access in the 790-862 MHz Digital Dividend Spectrum

“…This was decided as a result of a request by the mobile industry, on the grounds that the testing of compliance of mobile/nomadic TSs with respect to EIRP limits can be problematic. 5 Or the person responsible for placing the product on the market in the EU. 6 Together with the essential requirements of all other applicable Directives.…”