3GPP i.e. Third Generation Partnership Project, develops specifications for advanced mobile communications including 5G. It was established in 1998 by seven regional standards development organizations (SDOs) and comprises more than 600 members. The project covers cellular telecommunications technologies, including radio access, core network and service capabilities, which provide a complete system description for mobile telecommunications. The 3GPP specifications also provide hooks for non-radio access to the core network, and for interworking with non-3GPP networks. 3GPP specifications and studies are contribution-driven, by member companies, in Working Groups and at the Technical Specification Group level.
TEC has taken individual membership of 3GPP through Department of Telecommunications. Through this, TEC participates in various meetings, seminars, workshops of 3GPP. TEC has also taken up adoption of 3GPP standards transposed by Indian SDOs like TSDSI. Recently, TSDSI transposed 3GPP standards (402 nos., same as recommendations ITU R M.2012-4) have been approved for adoption as national standards by TEC. These radio interface standards detail the features and parameters of IMT Advanced like compatibility, International roaming, and access to high-speed data services. TEC also refers various 3GPP standards and specifications in its various specifications like Generic Requirements (GR), Interface Requirements (IR), System Requirements (SR) and Essential requirements (ER) for telecom equipment, networks, systems and services.