name: LTE
full_form: Long Term Evolution
context: NR is designed to support flexible operation taking co-existence with legacy RAT especially LTE into account. Since some NR frequency bands in FR1 have been used for LTE carriers, mechanisms for NR-LTE coexistence, e.g., NR DL/UL transmission within the bandwidth of an LTE carrier without impact on the legacy LTE devices, are supported. For the design of NR-LTE coexistence mechanisms, following two scenarios are considered. For both DL and UL, NR carrier and LTE carrier coexist in the same bandwidth Only for UL, NR carrier and LTE carrier coexist in the same bandwidth To achieve NR-LTE coexistence in the same bandwidth, higher-layer signalling is supported in NR to configure reserved resources to be used by LTE. It enables not only the coexistence between NR and normal LTE but also the coexistence between NR and LTE for machine type communication (MTC) and/or narrow band internet of things (NB-IoT). In NR, DL and UL subcarrier positions are aligned while they are different in LTE. For
description: Long Term Evolution (LTE) is a wireless broadband technology standard for mobile devices, which is part of the 3GPP specification. It is designed to provide high-speed data and voice services, and its coexistence with NR (New Radio) is considered in the design of mechanisms for flexible operation.
explanation: The text refers to LTE as a 'wireless broadband technology standard' and mentions its role within the 3GPP specification.  It also describes its function of providing high-speed data and voice services, further classifying it as a technological concept.
section_title: 5.5.4.9	NR-LTE co-existence
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