Zte ZXG10-OB06, Техническое руководство

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Chapter 5 - Networking Modes and System Configurations
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remain inside one ZXG10-OB06 (V1.0) cabinet to minimize the length of
the cabinet-crossing RF connection cable and reduce the loss over cables.
Table 13 shows the antenna feeder interface frame configuration.
T
A B L E
1 3 – A
N T E N N A
F
E E D E R
I
N T E R F A C E
F
R A M E
C
O N F I G U R A T I O N
S. N. Unit Name Configurations Description
1 Combiner
Distribution
Unit (CDU)
2 × Number of
sectors Each sector configured with two CDUs
2 Combiner
Extension
Unit (CEU)
2 × Number of
sectors with number
of carriers greater
than four Each sector whose numbers of carriers is
greater than four is configured with four
CDUs
A E M C o n f i g u r a t i o n P r i n c i p l e
There are two types of AEM units available: CDU and CEU. The ZXG10-
OB06 (V1.0) allows configuration of various types of sites by means of
different combinations of CDUs and CEUs.
For GSM900 cells, configure GSM900 units; for GSM1800 cells, configure
GSM1800 units; and so on and so forth for other GSM systems.
Configuration of each site can be as either omni-directional cell or a
multiple directional cell.
Based on different field strength coverage modes, there are two types of
base station antennas: omni-directional antenna and directional antenna.
• An Omni-directional antenna can provide omni-directional coverage,
thus saving site construction costs. However, the omni-directional
antenna has low gain and poor anti-interference capability.
• The directional antenna is of directivity with high gain and strong anti-
interference capability. Combination of multiple antennas is required to
ensure the complete coverage of a service area.
Table 14 shows the number of configured carriers for all 40 W TRXs. It
also depicts the correspondence between CDUs/CEUs and antennas
configured in one cell.
T
A B L E
1 4 - C
O N F I G U R E D
C
A R R I E R S F O R
A
L L
4 0 W T R X
S
N
U M B E R S A N D T H E
C
O R R E S P O N D E N C E B E T W E E N
C D U
S
/ C E U
S A N D
A
N T E N N A S
C
O N F I G U R E D
I
N
O
N E
C
E L L
TRX Quantity Antenna Quantity and
Configuration CDU Quantity CEU Quantity
1 2, TX/RX, RX 2 -
2 2, TX/RX, TX/RX 2 -
3~4 2, TX/RX, TX/RX 2 0 or 2
5~6 2, TX/RX, TX/RX 2 2