What is IQ data compression?

What is IQ data compression?

Back to top. Compression IP is used to put more data into a given fiber or microwave “link” in wireless systems. Using Compression a higher data rate can be transmitted on lower speed links which are generally cheaper. This is a goal across the industry but few have achieved.

What is CPRI compression?

To support more carriers or RRUs/RFUs/pRRUs on a CPRI port, the CPRI Compression feature is introduced. This feature compresses the I/Q bit width and lowers the sampling rate to reduce the CPRI bandwidth resources required by the CPRI data transmission.

What is IQ in Cpri?

IQ samples are generated by Linear Feedback Shift Registers (LFSR) and are driven into the Compression Modules. After compression the IQ samples are mapped by the IQ Mapper module and are then driven into the CPRI IP. The CPRI module implements the CPRI protocol. It loads the IQ samples unto the CPRI IQ Data Plane.

What is the difference between CPRI and eCPRI?

CPRI is the short form of Common Public Radio Interface. eCPRI is published after CPRI. eCPRI standard defines specification which connects eREC and eRE via fronthaul transport network. It is used for 5G systems, LTE-Advanced and LTE-Advanced Pro.

What is Cpri in LTE?

CPRI (Common Public Radio Interface) is a specification for wireless communication networks that defines the key criteria for interfacing transport, connectivity and control communications between Baseband units (BBUs) and remote radio units (RRUs), which are also called remote radio heads (RRHs).

Is CPRI a protocol?

As fiber optic cabling is found at each and every new green field cell tower installation, so is a new protocol called common public radio interface (CPRI). Fiber and CPRI together allow MNOs to deliver better quality and faster service to all mobile device users.

What are the 3 functions of RRU?

RRU Functions:

• Acts as a transceiver: transmit and receive the user signals to the base station and vice-versa.
• Provides back to back support and connectivity between user equipment’s like power, delay,etc.
• Control and process the EM signals received from the Antenna via Jumper(Hollow Guide).

What is CPRI vs eCPRI?