CPRI容器的字长、能力与CPRI速率的对应关系
选项 |
Rate1 |
Rate2 |
Rate3 |
Rate4 |
Rate5 |
Rate6 |
Rate7 |
Rate8 |
Rate9 |
Rate10 |
Rate倍数 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
码片倍数 |
1 |
2 |
4 |
5 |
8 |
10 |
16 |
20 |
24 |
48 |
Y值 |
1 |
2 |
4 |
5 |
8 |
10 |
16 |
20 |
24 |
48 |
bits/Y |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
字长bits |
8 |
16 |
32 |
40 |
64 |
80 |
128 |
160 |
192 |
384 |
数据words |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
基本帧中数据bits |
120 |
240 |
480 |
600 |
960 |
1200 |
1920 |
2400 |
2880 |
5760 |
I bits |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
Q Bits |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
单A*C Size |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
编码前速率 |
491.52 |
983.04 |
1966.08 |
2457.60 |
3932.16 |
4915.20 |
7864.32 |
9830.40 |
11796.48 |
23592.96 |
有效载荷比 |
0.94 |
0.94 |
0.94 |
0.94 |
0.94 |
0.94 |
0.94 |
0.94 |
0.94 |
0.94 |
有效载数据荷速率 |
460.80 |
921.60 |
1843.20 |
2304.00 |
3686.40 |
4608.00 |
7372.80 |
9216.00 |
11059.20 |
22118.40 |
链路编码 |
0.80 |
0.80 |
0.80 |
0.80 |
0.80 |
0.80 |
0.80 |
0.97 |
0.97 |
0.97 |
链路编码后速率M |
614.40 |
1228.80 |
2457.60 |
3072.00 |
4915.20 |
6144.00 |
9830.40 |
10137.60 |
12165.12 |
24330.24 |
采样率M |
3.84 |
7.68 |
15.36 |
19.2 |
30.72 |
38.4 |
61.44 |
76.8 |
92.16 |
184.32 |
采样周期(ns) |
260.41667 |
65.10417 |
16.27604 |
10.41667 |
4.06901 |
2.604167 |
1.017253 |
0.651042 |
0.452112 |
0.113028 |
基本帧周期ns |
260.41667 |
260.4167 |
260.4167 |
260.4167 |
260.4167 |
260.4167 |
260.4167 |
260.4167 |
260.4167 |
260.4167 |
基本帧中symbol的 能力个数 |
4 |
8 |
16 |
20 |
32 |
40 |
64 |
80 |
96 |
192 |
CPRI 2:1.2G=》 1 Word =》8bits
CPRI3:2.4G =》2 Word =》16bits
CPR5: 4.9G =》4 word =》 32bits
CPRI7:9.8G =》8 word =》 64bits