ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual
24
Confidential and Proprietary Information of ZTE CORPORATION
•
Inter-modulation attenuation of the transmitter
•
Inter-modulation attenuation in BSS
•
Transmitted adjacent channel power
•
Spurious emission of the transmitter
R e c e i v e r P e r f o r m a n c e
The following characteristics describe the receiver performance:
•
Specifications compliant with GSM 11.21 and GSM 05.05 are as follows:
•
Static layer-1 receiver function (nominal error rate) before channel
decoding, which includes the following:
•
Multiplexing and multi-addressing
•
Equalizer decryption
•
De-interleaving
•
Channel encoding
•
Static referential sensitivity level: A level set while inputting a
standard test signal under the static environment. The FER, RBER
or BER, generated after modulation and channel decoding, meets
the specified requirements when the level is configured as the
referential sensitivity level. Static sensitivity levels for reference of
GMSK & 8PSK are as follows:
•
GMSK:
≤
-108 dBm
•
8PSK:
≤
-104 dBm
•
Multi-path referential sensitivity: A level set while inputting a
standard test signal under the multi-path environment. The FER,
RBER or BER, generated after modulation and channel decoding,
meets the specified requirements when the level is configured as
the referential sensitivity level.
•
Referential interference level (interference and suppression of same
frequency and adjacent channels): The capability to receive the
expected modulation signal not over given degraded quantity. It is
caused by unexpected modulation signal on same carrier frequency
(interference of same channel) or any adjacent carrier frequency
(interference of adjacent channel).
•
Block and spurious response suppression: Test the capability that
BSS receiver receives the GSM modulation signal when
interferential signal exists.
•
Inter-modulation suppression: It is the measuring linear degree of
RF part of receiver. It indicates the receiver’s capability of receiving
good-quality expected modulation-signal, when two or multiple
unexpected signals exist, which are similar to the expected signal
in frequency.
•
AM suppression: It is the capability of receiving the expected
modulation signals, below the given degraded quantity when an
unexpected modulation signal exists.
