What is CPRI protocol?
What is CPRI protocol?
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).
What is the use of CPRI?
The Common Public Radio Interface (CPRI) is an industry cooperation aimed at defining publicly available specifications for the key internal interface of remote radio head (RRH) or Radio Equipment (RE), and base station unit (BBU) or Radio Equipment Controller (REC) via a so-called fronthaul transport network.
What is difference between CPRI and eCPRI?
CPRI defines key interface specification between REC (Radio Equipment Control) and RE (Radio Equipment) of radio base stations used for cellular wireless networks. CPRI is the short form of Common Public Radio Interface. eCPRI standard defines specification which connects eREC and eRE via fronthaul transport network.
What is meant by radio interface?
radio interface: The common boundary between a mobile station and the radio equipment in the network, which is the boundary defined by functional characteristics, physical interconnection characteristics, signal characteristics, and other characteristics as appropriate.
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).
Is Cpri a protocol?
It is a protocol of choice for fronthaul communications between towers and base stations (BSs) through several generations of wireless networks. CPRI has efficient and flexible I/Q data interfaces for various standards, such as GSM, WCDMA, LTE, etc.
What does CPRI stand for?
Common Public Radio Interface
The Common Public Radio Interface, or CPRI, is an evolving specification for wireless communications networks defined by a consortium of original equipment manufacturers.
Is CPRI a protocol?
What is RU in 5G?
The most demanding interface in 5G RAN transport is between the RU and DU. The RU (radio) provides functions such as analog to digital conversion, filtering, power amplification and TX/RX; with the use of massive multiple input/multiple output (MIMO), the RU is inte- grated with the antenna.
What is NGFI?
NGFI is the fronthaul interface between baseband pool and remote radio heads for the next generation of radio network infrastructure. NGFI redefines the baseband processing split between BBU and RRU, hence redefining the positioning of eNB stack components between BBU/RRU.
Which type of interface is radio interface in GSM?
19.2. The GSM radio interface is based on a TDMA structure with eight time slots and 200 kHz carrier bandwidth. To increase data rates, today’s GPRS and EDGE terminals can use multiple time slots for transmission, reception, or both.
What is LTE radio interface?
The eNodeB provides the radio interface and performs radio resource management for Long-Term Evolution (LTE), including radio bearer control, radio admission control, and scheduling of uplink and downlink radio resources for individual UEs. The control-plane interface is referred to as S1-MME and terminates in the MME.
What is the common public radio interface ( CPRI )?
The Common Public Radio Interface (CPRI) Intel® FPGA IP core implements the CPRI Specification V7.0 (2015-10-09). CPRI is a high-speed serial interface for network radio equipment controllers (REC) to receive data from and provide data to remote radio equipment (RE).
Which is better ecpri or CPRI fronthaul interface?
Actually, eCPRI fronthaul interface is future-oriented. It optimizes radio performance by analyzing traffic and prioritizing traffic in real time using a coordination algorithm. Compared with CPRI, the eCPRI specification provides greater flexibility and reliability in positioning the functional split within the BBU physical layer.
Who are the parties to the CPRI specification?
Interface Specification Common Public Radio Interface (CPRI); Interface Specification The CPRI specification has been developed by Ericsson AB, Huawei Technologies Co. Ltd, NEC Corporation, Alcatel Lucent and Nokia Networks (the “Parties”) and may be updated from time to time.
Which is FPGA core implements the CPRI specification?
The Common Public Radio Interface (CPRI) Intel® FPGA IP core implements the CPRI Specification V7.0. CPRI is a high-speed serial interface for network radio equipment controllers (REC) to receive data from and provide data to remote radio equipment (RE). The CPRI Intel® FPGA IP core targets high-performance, remote radio network applications.