ZTE Corporation ZXG-OB06 Manuale Utente

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ZXG10 OB06 ZTE  Integrated Outdoor GSM Base Station Technical Manual 
40 
Confidential and Proprietary Information of ZTE CORPORATION 
High Receiving Sensitivity 
The static receiving sensitivity of the OB06 reaches up to -112dBm. The 
high sensitivity guarantees the uplink channel performance of the OB06, 
and is one of the prerequisites for a wide coverage of the OB06. 
Flexible Configuration 
The OB06 supports 1~6 carriers per site in omni-directional or directional 
coverage. It can support 1 ~ 3 sector configuration mode, which can be 
selected by the user as required. Through the adjustment of front-end 
gain (such as tower amplifier and low-noise amplifier), the loss in different 
length of feeder of the OB06 can be compensated to guarantee consistent 
receiving system gain. 
Easy O&M 
The RF part of the OB06 can be controlled remotely through OMCR, to 
change the transmitting power, transmitting/receiving frequency and more. 
The alarm signals generated from the RF part are reported to OMCR, so 
that the operators at the background can control the operation of the RF 
part and know about the operation statuses. 
Diversity Receiving 
The OB06 provides the diversity receiving function, which is implemented 
by two sets of independent receiving equipment at the same time, 
including antenna, tower top amplifier (optional), feeder, divider and 
receiver. The application of the diversity receiving function enhances the 
anti-fading capability of the BTS receiver, enabling excellent receiving 
performance of the BTS even in complex radio transmission environment. 
Frequency Hopping 
Frequency hopping is another important measure to enhance OB06 
performance, which not only improves the anti-fading capability in the 
downlink channels, but strengthens the communication security. The OB06 
supports two working mode: hopping or no hopping. With hopping on, the 
transceiver changes working frequencies according to a certain hopping 
sequence, while with hopping off, the transceiver locks a specified working 
frequency. 
Power Control 
The OB06 can provide static power control, dynamic power control and idle 
timeslot transmitting shutoff functions. The static power control range is 
up to 12 dB, 2 dB per step. The static power control enables the user to 
adjust the OB06 coverage. The dynamic power control range is up to 30 
dB, 2 dB per step. The BSC can adjust the OB06 transmitting power 
according to the distance between MS and OB06. In case of idle timeslot, 
since there is no downlink signal, the BSC commands the OB06 to shut off 
the transmitting power of that timeslot. These power control functions