Home of RF and Wireless Vendors and Resources

One Stop For Your RF and Wireless Need

CPRI AxC | CPRI antenna carrier | CPRI AxC Container Size

This page describes CPRI AxC definition. It mentions CPRI AxC container size. AxC is the short form of Antenna Carrier in CPRI standard.

Definition:
The CPRI standard defines AxCs (antenna carriers) for transmission and reception of the digital I/Q data. An AxC is a container for one I/Q sample. The size in bits of such an AxC thus depends on the length of one IQ sample, e.g. 16 bits.

CPRI AxC

➨Case-1: The basic frames are transmitted over the CPRI link with a fixed clock rate of 3.84 MHz. This means, every 0.26 µs one basic frame is transmitted. Thus, the wanted data rate determines how many AxCs are needed per basic frame to carry the I/Q data. For example, for a 3GPP signal with a sample rate of 3.84 MHz only one AxC is needed per basic frame. Every 0.26 µs one basic frame is transmitted and with it one AxC, i.e. one I/Q sample. The resulting I/Q data rate over the CPRI link is thus 3.84 MHz.

➨Case-2: For a signal with a wanted sample rate of 11.52 MHz three AxC are needed per basic frame. Again, every 0.26 µs one basic frame is transmitted but this time with three AxCs, i.e. three I/Q samples. The resulting I/Q data rate over the CPRI link is thus 3.84 MHz * 3 equals 11.52 MHz.


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




5G TECHNOLOGY RELATED LINKS

This 5G tutorial also covers following sub topics on the 5G technology:
5G basic tutorial
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


What is Difference between

difference between FDM and OFDM
Difference between SC-FDMA and OFDM
Difference between SISO and MIMO
Difference between TDD and FDD
Difference between 802.11 standards viz.11-a,11-b,11-g and 11-n
OFDM vs OFDMA
CDMA vs GSM
Bluetooth vs zigbee
Fixed wimax vs mobile
wibro vs mobile wimax
Microcontroller vs microprocessor

RF and Wireless Terminologies


Share this page

Translate this page