B.6 Interference model for enhanced performance requirements type A and type B
36.1413GPPBase Station (BS) conformance testingEvolved Universal Terrestrial Radio Access (E-UTRA)Release 17TS
This clause provides a description for the modelling of inter-cell interfering UE transmissions for enhanced performance requirements type A and type B including: definition of dominant interferer proportion, interference model for synchronous scenario and interference model for asynchronous scenario.
B.6.1 Dominant interferer proportion
Each inter-cell interferer involved in enhanced performance requirements type A and type B is characterized by its associated dominant interferer proportion (DIP) value:
(
= 1,…, 
)
where 
is the received energy from the i-th strongest inter-cell interferer involved in the requirement scenario and 
where 
is the the energy of the white noise source consistent with the definition provided in subclause 8.1 of TS 36.104 [2] and 
is the total number of simultaneously transmitted inter-cell interferers involved in a given requirement scenario.
B.6.2 Interference model for synchronous scenario
This subclause provides interference modelling for each explicitly modelled inter-cell interferer in the requirement scenario where the inter-cell interferer(s) are time-synchronous with the tested signal.
In each subframe, each interferer shall transmit 16QAM randomly modulated data over the entire PUSCH region and the same resource blocks as the tested signal. Demodulation reference signal, configured according to Table 8.2.6.4.2-2 for enhanced performance requirements type A, and Table 8.2.9.4.2-2 to Table 8.2.9.4.2-3 for enhanced performance requirements type B, is transmitted associated with the transmission of PUSCH.
B.6.3 Interference model for asynchronous scenario
This subclause provides interference modelling for each explicitly modelled inter-cell interferer in the requirement scenario where the inter-cell interferer(s) are time-asynchronous with the tested signal.
Two interfering UEs from the same interfering cell, named interferer 1-1 and interferer 1-2, are modelled. Interferer 1-1 and interferer 1-2 shall transmit 16QAM randomly modulated data over the entire PUSCH region and the same resource blocks as the tested signal, respectively in the even subframes and odd subframes, as illustrated in Figure B.6.3-1. Demodulation reference signal, configured according to Table 8.2.6A.4.2-2, is transmitted associated with the transmission of PUSCH. The transmissions of both interferer 1-1 and interferer 1-2 are delayed with respect to the tested signal by 0.33 ms.
Figure B.6.3-1: Configuration of asynchronous interferers
Annex C (normative):
Characteristics of the interfering signals
<Text will be added.>
The interfering signal shall be a PUSCH containing data and reference symbols. Normal cyclic prefix is used. The data content shall be uncorrelated to the wanted signal and modulated according to clause 5 of TS36.211. Mapping of PUSCH modulation to receiver requirement are specified in Table C.1.
Table C.1: Modulation of the interfering signal
|
Receiver requirement |
Modulation |
|
In-channel selectivity |
16QAM |
|
Adjacent channel selectivity and narrow-band blocking |
QPSK |
|
Blocking |
QPSK |
|
Receiver intermodulation |
QPSK |
Annex D (normative):
Environmental requirements for the BS equipment