The CTTC has a very active involvement in a number of standard development organizations. In many cases, contributions are the outcome of selected R&D project where the Center participates (e.g., H2020) or internal research activities. Besides, CTTC researchers participate/have participated as external experts in e.g., specialist task forces; or as consultants/advisors for other companies contributing to standardization groups.

To date, the CTTC has been an active contributor to the European Telecommunications Standards Institute (ETSI, full member since 2009), the Internet Engineering Task Force (IETF), the Third Generation Project Partnership (3GPP), and the Optical Network Foundation (ONF).

Specifically, CTTC is a member of ETSI’s Network Function Virtualization (NFV) specification group and of Open Source MANO (OSM/OSG), an ETSI-hosted project aimed to develop an Open Source NFV Management and Orchestration (MANO) software stack aligned with ETSI NFV. In both cases, contributions are closely related with CTTC’s activities in the EC-funded 5G TANGO and METRO-HAUL projects. Complementarily, the work conducted in FLEX5GWARE (Flexible and efficient hardware/software platforms for 5G network elements and devices) project laid the basis for a number of contributions to ETSI Reconfigurable Radio Systems (RRS) group. Contributions addressed mechanisms for radio access technology selection and dynamic hardware/software split. Besides, CTTC researchers have been hired as external experts of ETSI’s Specialist Task Force GANA (Autonomic and Self-Managed Networks). The goal of this  group is to develop a Technical Report on the instantiation of the GANA model for fixed broadband access and aggregation networks deployed as per the Broadband Forum (BBF) architecture specifications.

The CTTC is also involved in a number of IETF and ONF standardization activities dealing with the control of optical networks. More precisely, the Center regularly participates IETF meetings and, also, as co-authors of IETF and ONF documents (e.g., IETF Path Computation Element Working Group (PCE-WG), the Common Control or Measurement Plane Working Group (CCAMP-WG), and Traffic Engineering Architecture and Signaling (TEAS), or ONF Cross-Stratum Orchestration (CSO). Moreover, in 2016, a CTTC researcher has received the ONF Outstanding Initiative Award for his contribution to the Open Transport Working Group. Finally, and as a result of the collaboration with the Wi-Fi alliance (WFA), the CTTC has co-authored a contribution to 3GPP RAN1 with an evaluation of coexistence performance of Licensed Assisted Access (LAA) and WiFi in the 5GHz band. It is based on an extension of the ns-3 LTE simulator realized at CTTC and funded by the WFA.