On February 27, 2017 in Barcelona, global mobile industry leaders announced their support for the acceleration of the 5G NR standardization schedule, which introduced an intermediate milestone to complete the first implementable specification for Non-Standalone 5G NR operation. As a result of this announcement, the schedule acceleration was agreed at the 3GPP RAN Plenary Meeting on March 9 in Dubrovnik, Croatia. This first specification was completed as part of 3GPP Release 15.

This standard completion is an essential milestone to enable cost-effective and full-scale development of 5G NR, which will greatly enhance the capabilities of 3GPP systems, as well as facilitate the creation of vertical market opportunities. 3GPP plans to continue to develop Release 15, including the addition of support for Standalone 5G NR operation also agreed upon by 3GPP in Dubrovnik.

The 5G NR lower layer specifications have been designed so that they can support Standalone and Non-Standalone 5G NR operation in a unified way, to ensure that 3GPP benefits the global industry with a large-scale single 5G NR ecosystem. We express our appreciation for the tremendous efforts that 3GPP has dedicated to accomplishing this challenging standardization schedule.