CPRI Line Rates | Rate-1,2,3,4,5,6,7A,7,8,9,10 of CPRI Line
This page covers CPRI line rates. The table covers CPRI line rate-1,2,3,4,5,6,7A,7,8,9 and 10. The transport capacity of WCDMA and LTE AxC are also mentioned.
Introduction:
The CPRI (Common Public Radio Interface) is a popular standard to transport baseband I/Q signals to the radio unit
in Base Station. It allows efficient as well as flexible I/Q data interface for various wireless standards such as
GSM, WCDMA, LTE etc. It uses one physical connection for user data, management and control signaling and synchronization.
| CPRI Line Rate | Line Bit Rate |
Line Coding |
Bits per word |
Transport capacity (#WCDMA AxC) |
Transport capacity (#20 MHz LTE AxC) |
|---|---|---|---|---|---|
| Rate-1 | 0.6144 Gbps | 8B/10B | 8 | 4 | - |
| Rate-2 | 1.2288 Gbps | 8B/10B | 16 | 8 | 1 |
| Rate-3 | 2.4576 Gbps | 8B/10B | 32 | 16 | 2 |
| Rate-4 | 3.0720 Gbps | 8B/10B | 40 | 20 | 2 |
| Rate-5 | 4.9152 Gbps | 8B/10B | 64 | 32 | 4 |
| Rate-6 | 6.1440 Gbps | 8B/10B | 80 | 40 | 5 |
| Rate-7A | 8.1100 Gbps | 64B/66B | 128 | 64 | 8 |
| Rate-7 | 9.8304 Gbps | 8B/10B | 128 | 64 | 8 |
| Rate-8 | 10.1376 Gbps | 64B/66B | 160 | 80 | 10 |
| Rate-9 | 12.1651 Gbps | 64B/66B | 192 | 96 | 12 |
| Rate-10 | 24.3302 Gbps | 64B/66B | 384 | 192 | 24 |
CPRI transports I/Q data of particular antenna and particular carrier. This "unit" is called an
AxC unit or Antenna-Carrier unit.
Example:
In LTE system, if I=16 bits and Q=16 bits
then one AxC is of length 32 bits.
CPRI and eCPRI Related Links
5G NR Numerology | 5G NR Terminology
5G NR Control channels | 5G NR Traffic Channels | 5G NR Reference Signals and sequences
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5G Frequency Bands
5G millimeter wave tutorial
5G mm wave frame
5G millimeter wave channel sounding
Difference between 4G and 5G
5G testing and test equipments
5G network architecture
5G NR Physical layer
5G NR MAC layer
5G NR RLC layer
5G NR PDCP layer
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