: DTTB receive antenna gain including losses GRx : wall loss (= 0 dB), and LWall : body loss at the MBB terminal. LBody The total interference power seen by the victim DTTB receiver is given by: From the above, is calculated as follows: I/N Table 4 gives an example of the calculation of separation distance for the case of = dB, POOB –55 = dBm and = 80 dB. In case of this large the value of total interference power PTx ACS ACS, –9 mostly depends on In-band interference power. 4 Example of the calculation to achieve = dB in = dBm, I/N POOB –10 –55 = dB, = 80 dB PTx ACS –9 Noise equivalent bandwidth B 5.6 MHz Noise figure: NF 7 dB Thermal noise (290K, 5.6 MHz): dBm/5.6 MHz PN –106.5 Total interference power: dBm ITot –109.6 In-band interference power: dBm IIB –109.6 Adjacent channel interference power: dBm –146.6 IAC Total coupling gain: dB GTot –54.6 output dBm Tx PTx –9 antenna gain: dBi Tx GTx –3 e.i.r.p.: dBm Tx Pe.i.r.p –12 Maximum OOB: dBm POOB –55 adjacent channel selectivity: 80 dB Rx ACS antenna gain: 2.15 dBi Rx GRx Wall loss: 0 dB LWall Body loss: 4 dB Tx Propagation loss: 52.8 dB LP Frequency: 695 MHz f Separation distance: 15 m d dB I/N –10.12 Tables 5, 6 and 7 summarise the calculations of the separation distances necessary to achieve the target of dB for the three different and assumptions. This value is I/N ACS PTx I/N –10 based on the Recommendation ITU-R BT.1895.
GRx : DTTB receive antenna gain including losses LWall : wall loss (= 0 dB), and LBody : body loss at the MBB terminal. The total interference power seen by the victim DTTB receiver is given by: From the above, I/N is calculated as follows: Table 4 gives an example of the calculation of separation distance for the case of POOB = –55 dB, PTx = –9 dBm and ACS = 80 dB. In case of this large ACS, the value of total interference power mostly depends on In-band interference power. 4 Example of the calculation to achieve I/N = –10 dB in POOB = –55 dBm, PTx = –9 dB, ACS = 80 dB Noise equivalent bandwidth B 5.6 MHz Noise figure: NF 7 dB Thermal noise (290K, 5.6 MHz): PN –106.5 dBm/5.6 MHz Total interference power: ITot –109.6 dBm In-band interference power: IIB –109.6 dBm Adjacent channel interference power: IAC –146.6 dBm Total coupling gain: GTot –54.6 dB Tx output PTx –9 dBm Tx antenna gain: GTx –3 dBi Tx e.i.r.p.: Pe.i.r.p –12 dBm Maximum OOB: POOB –55 dBm Rx adjacent channel selectivity: ACS 80 dB Rx antenna gain: GRx 2.15 dBi Wall loss: LWall 0 dB Tx Body loss: 4 dB Propagation loss: LP 52.8 dB Frequency: f 695 MHz Separation distance: d 15 m I/N –10.12 dB Tables 5, 6 and 7 summarise the calculations of the separation distances necessary to achieve the target I/N of –10 dB for the three different ACS and PTx assumptions. This I/N value is based on the Recommendation ITU-R BT.1895.
R-REP-BT.2337-2014-MSW-E.docx