This article describes how the original GSM Specifications were drafted and published when they were the sole property of ETSI, long before the creation of 3GPP.

The 3GPP specifications have a specification number, used to describe the work. Find here links to listings of the specifications & reports in each series.

1G Pre 3GPP & before ETSI’s GSM standard, the first generation of mobile networks were analogue systems, with voice encoded on to an analogue radio signal prior to digital …

Go to spec numbering scheme page Click on spec number for details

Learn about the best ways to get the specification and how to find the technology areas covered by the 3rd Generation Partnership Project (3GPP).

3GPP Portal > SpecificationsSearch form (Series (1), Releases (27))

3GPP uses a system of parallel "Releases" which provide developers with a stable platform for the implementation of features at a given point and then allow for the addition of new …

3GPP was created in 1998 to develop 3G mobile standards for WCDMA and TD-SCDMA accesses and their core networks. The aim was to maintain and evolve the ETSI standards for …

3GPP Portal > SpecificationsSearch form (Open Releases)

This document provides a Requirements Specification for the GSM A5/3 algorithm. The appendix A gives some other conditions that may be required, but is not part of the main specification …