name: EN-DC
full_form: eUTRA-NR Dual Connectivity
context: Summary based on the input provided by ZTE Corporation in RP-200112. In Release 15, the operating bands are specified for these eligible operations with EN-DC configured. The EN-DC band combinations include at least one E-UTRA operating band and a NR operation band. In moving forward to Release 16, the configuration of EN-DC operation needs to be expanded for more simultaneous uplink and downlink configurations, including band combination of LTE, FR1 and FR2 bands. New configurations still emerge from existing bands and whenever new band is specified, it will create a potential for several new EN-DC configurations consisting of 3 different bands DL with 3 different bands UL (1 LTE band UL and 2 NR different band UL(i.e. 1CC LTE band + 1CC NR FR1 band + NR FR2 band), or 2 LTE different band UL and 1 NR FR2 band UL). The EN-DC configurations including NR CA will be introduced in a release independent manner based on TS38.307, which will be updated depending on newly introduced EN-DC
description: EN-DC (eUTRA-NR Dual Connectivity) is a technology that enables the simultaneous use of both LTE (E-UTRA) and NR (5G) radio access technologies, allowing for more flexible and efficient use of spectrum resources. It supports various band combinations, including those with different numbers of bands for downlink and uplink, and is being continuously expanded to include new configurations and bands.
explanation: EN-DC is classified as a Technology because it refers to a specific standard or method for achieving dual connectivity between LTE and NR radio access technologies. The context highlights its role in enabling simultaneous use of multiple bands and its evolution over different releases, which justifies its classification under the Technology category.
section_title: 19.1.5	Dual Connectivity (EN-DC) with 3 bands DL and 3 bands UL
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