Rohde & Schwarz EX-IQ-BOX, Руководство пользователя

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Protocol Settings
R&S
®
EX-IQ-BOX
137 User Manual 1409.5570.32 ─ 05
The following table defines the transmission speed of a CPRI connection for control and
I/Q data:
Table 7-3: Bit Rates
Line Rate R
[Mbit/s]
Netto Rate R
n
[Mbit/s]
I/Q Rate R
iq
[Mbit/s]
C&M Rate R
c
[Mbit/s]
Slow CM (max)
R
scm
[Mbit/s]
Fast CM (max)
R
fcm
[Mbit/s]
614.4 491.52 460.8 30.72 480.0 21.12
1228.8 983.04 921.6 61.44 960.0 42.24
2457.6 1966.08 1843.2 122.88 1920.0 84.48
3072.0 2457.60 2304.0 153.60 2400.0 105.60
4915.2 3932.16 3686.4 245.76 3840.0 168.96
6144.0 4915.20 4608.0 307.20 4800.0 211.20
9830.4 7864.32 7372.8 491.52 7680.0 337.92
The bit rates are calculated as:
Line Rate:
8
10
84 3 16
   
. W R
Netto Rate:
10
8
84 3 16
    
R . W R
n
I/Q Rate:
4
3
84 3 15
    
R . W R
iq
C&M Rate
20
1
84 3
   
R . W R
c
Slow CM (max):
1280 64 256
84 3
4
R R .
W R
c
scm
    
Fast CM (max):
20
1
64
44
64
44
256
84 3
44 4
        
R R
.
W R
c fcm
Fast CM (var):
 
20
1
64
64
64
64
256
84 3
64 4
 

 

     
R
P
R
P .
P W R
c fcmp
Vendor Data
Starting from subchannel index 16 up to the start of the fast C&M channel defined by the
pointer position P, vendor specific data can be transmitted.
CPRI