3rd Generation Partnership Project
3GPP is supported by the Mobile Competence Centre (MCC) which is part of the ETSI Secretariat. It unites seven telecommunications standard development organizations (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC), known as “Organizational Partners” and provides their members with a stable environment to produce the Reports and Specifications that define 3GPP technologies.
The project covers cellular telecommunications network technologies, including radio access, the core transport network, and service capabilities - including work on codecs, security, quality of service - and thus provides complete system specifications. The specifications also provide hooks for non-radio access to the core network, and for interworking with Wi-Fi networks.
3GPP specifications and studies are contribution-driven, by member companies, in Working Groups and at the Technical Specification Group level.