Understanding the Mobile World

The intertwining of telecom, banking, and M2M/IoT produces a new degree of complexity. We hope our COMPRION glossary helps you to get a good overview of all the connected terms, technologies, and concepts.


In COMPRION test tools, characteristics of different objects, like IUT, test case, test plan, etc.


The parity of the data bits in a bit sequence is compared with its parity bit.


Difference between the maximum positive and the maximum negative amplitudes of a waveform. If there is no direct current (DC) component in an alternating current (AC) wave, then the peak-to-peak amplitude is twice the peak amplitude.


The lowest or first layer in the OSI Model. This layer transmits the unstructured raw bit stream over a physical medium, relates the electrical, optical mechanical, and functional interfaces to the cable, defines how the cable is attached to the network adapter card, and defines data encoding and bit synchronization.


In telecommunications, a protocol is a system of digital rules for data exchange within or between computers. In computer science, when data is exchanged through a computer network, the rules system is called a network protocol.


Structured document that asserts which specific requirements are met by a given implementation of a protocol standard. It is often completed as a record of formal protocol conformance test results, and COMPRION test systems machine-author PICS as output. Potential buyers or users of the implementation can consult the PICS to determine if it meets their requirements.


The second layer of the OSI Model transfers the data packets provided by the upper layers to the underlying Physical Layer and constructs data packets on the receiver side out of the raw bit stream of the physical layer.


Generic term for readers within ISO/IEC 14443. The PCD emits an electromagnetic field and models all requests on the carrier frequency. All communication is initiated by the PCD and its range is up to 10 cm (proximity).


Contactless smart card that is able to operate within a radius of up to 10 cm of the card reader. As a passive card, it obtains power from electromagnetic field generated by the PCD.


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