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Common Public Radio Interface overview

A 3 day training course

CPRI training course description

This course is designed to give the delegate a technical overview of the CPRI protocols and link setup. We will explain the industry cooperation to define the key internal interface between the radio equipment control (REC) and the radio equipment (RE). Also explained will be the SAP that the CPRI link supports for IQ Interface, frame synchronisation, link control and management and the master and slave ports. We will investigate the CPRI block diagram and together with the data formats and sample mapping solutions. The CPRI frame hierarchy and hyperframe construction will be detailed during this three day overview course.

Key outcomes from this course

By the end of the course delegates will be able to:
  • Explain the CPRI Block diagram
  • Understand hyperframing capabilities
  • Explain the CPRI frame format
  • Understand how the synchronisation is compliant with 3GPP & WiMAX requirements
  • Understand the two electrical characteristics of CPRI standard
  • Understand the CPRI standards structure
  • Understand the CPRI system & Interface definitions
  • List the four standard bit rates of the CPRI specification
  • Understand the CPRI Protocol stacks

CPRI training course details

Who will benefit:
Anyone looking for a technical overview of the CPRI protocols and link set up.
Prerequisites:
None.
Duration:
3 days

Training approach

This structured training course seeks to build upon workbook learning through the use of group exercises, dynamic discussion and individual tasks in order to deliver an engaging and interactive module that will ensure all candidates are able to transfer their new skills into the workplace.

Course review


"Hard concepts were explained very simply."
J. S., Framestore CFC
"Excellent presentation - very good course structure."
B. M., London Internet Exchange

CPRI training course contents

System Description
Subsystems. Nodes. Protocol layers. Protocol data planes. User data planes. Antenna carriers. Service Access Points (SAP). Link. Passive Link. Hop. Multi-hop Connection. Logical Connection. Master Port & Slave Port.

System Architecture
Basic System Architecture & Common Public Radio Interface Definition. System Architecture with a link between Res. Reference configurations: Chain topology, Tree topology, Ring topology. RECs & REs in both chain & tree topology

Functional description
Radio Functionality. Functional Decomposition between REC and RE: For UTRA FDD, For WiMAX & E-UTRA, For GSM. CPRI Control Functionality.

Interface Baseline
Interface Specification. Protocol Overview. IQ Data. Synchronisation. L1 Inband Protocol. C & M Data. Protocol Extensions. Vendor Specific Information.

Physical Layer Specifications
Line Bit Rate. Physical Layer Modes. Electrical Interface. Optical Interface. Line Coding. Bit Error Correction/Detection. Frame Structure. Mapping Methods. Container Blocks. Hyperframes. GSM, UMTS & WiMAX Timing. Link Delay Accuracy & Cable Delay Calibration. Link Maintenance

Data Link Layer (Layer 2) Specification
Layer 2 Framing for Fast & Slow C & M Channels. Medium Access Control/Data Mapping. Flow Control.

Start-up Sequence
General. Layer 1 Start-up Timer. State Description. Transition Description.

Interoperability
Reserved Bandwidth. Version Numbers.

Supplementary Specification Details
Delay Calibration Example. Reference Test Points.

List of Abbreviations & Gloss

Why Choose Us

SNT trainers score an average of over 90% on the three main areas of:
  • Ability to teach
  • Technical knowledge
  • Answering questions
“Excellently presented by a very knowledgeable and enthusiastic trainer.” P.D. General Dynamics

We limit our maximum class size to 8 delegates; often we have less than this. This ensures optimal interactivity between delegates and instructor.
"Excellent course. The small class size was a great benefit…" M.B. IBM

We write our own courses; courseware does not just consist of slides and our slides are diagrams not bullet point text. A typical chapter provides clearly defined objectives with a chapter overview, slides with text underneath, a quiz at the end to check the learning of the students. Hands on exercises are at the end and are used to reinforce the theory.

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