The level of
unwanted emissions ( i.e. consisting of the out-of-band emissions and the spurious emissions
[8] of the ILT) falling within the VLR receiver bandwidth (Figure 11) is determined using the interferer’s transmit mask, the receiver bandwidth of the VLR, the interferer-to-victim frequency separation, the gains of the antennas and the propagation loss. The receiver experiences the unwanted power directly as additional noise in terms of I+N. There is no possibility in terms of filtering with which the receiver could reduce this impact by itself.
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Further details on the unwanted emission mask are provided in ANNEX 6:. Details on the iRSSunwanted calculation are given in ANNEX 5:. The unwanted emission is also sometimes quantified using the term Adjacent Channel Leakage Ratio (ACLR) (see Annex A15.7).
Figure 11: Illustration of the interference due to the unwanted emissions (i.e. the unwanted emissions of ILT falling in the receiver bandwidth of VLR)