Zte ZXC10 CBTS O1, Техническое руководство

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Chapter 4 - BTS Networking and Configuration
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RS Mode
The RS networking mode applies when the RRFS is used independently
and 4-carrier 3-sector is configured. It is another economy approach.
In the RS mode, the BDS is locally installed and it can be a super BTS,
single macro BTSB or CBTS; while the remote CBTS accommodates only
the RFS. Such configuration (see below) supports 12 carrier sectors for
either EV-DO or 1X.
F
I G
. 1 5 R S M
O D E
T
R
X T
R
X
T
R
X
R
M
M
1
RPD
S
A
M
0
L
P
A
P
I
M
0
L
P
A
L
P
A
RFE
1
RFE
1
RFE
1
B
T
M
B
I
M
LEA Mode
The LEA networking mode applies when the CBTS system is deployed with
4-carrier 3-sector to deliver pure 1X or 1X + EV-DO services, however the
local RFS has to be extended to fit in system configuration (while the
baseband resource is enough).
In the LEA mode, two CBTS cabinets are combined with the additional one
configured with only RFS (no BDS). This mode provides a capacity of 24
carrier sectors to deliver pure 1X service, or 4-carrier 3-sector for 1X +
EV-DO. (In this mode, the BDS supports only 12 carrier sectors to deliver
pure EV-DO service. That’s why the LS mode is more preferable for pure
EV-DO service.)