name: MSR
full_form: Multi-Standard Radio
context: Figure 7.1-1: LTE EARFCN configuration within NR carrier with NR channel raster = 100kHz Figure 7.1-2: LTE EARFCN configuration within NR carrier with NR channel raster = 15kHz or 30kHz In LTE channel raster setting in downlink, there is a DC subcarrier where the LTE EARFCN coincides with the center of this subcarrier. Because the NR channel raster definition considers the co- existence with 100kHz channel raster and subcarrier alignment with LTE, for the NR bands that support the LTE-MTC co-existence with 100kHz channel raster for FDD band, the LTE EARFCN can coincide with NR ARFCN at the same frequency location on the center of NR carrier. This means for downlink the LTE and NR can be aligned in the subcarrier level, but not in PRB level due to the DC subcarrier in LTE. When NR channel raster is 100kHz, as Figure 7.1-1 shows, if LTE carrier is configured with other EARFCN than the center of NR carrier (NR-ARFCN), due to the subcarrier alignment and 100kHz raster, the EARFCN
description: Multi-Standard Radio (MSR) is a radio technology that supports multiple wireless communication standards, like UTRA and E-UTRA, within a single device or system. It's discussed in 3GPP TS 37.809 regarding unwanted emissions from LA MSR BC1 and BC2 categories.
explanation: MSR is classified as Technology because it describes a specific radio technology enabling various wireless standards to operate together. The text's focus on MSR's impact on operating band emissions reinforces its technological nature.
section_title: 8.5	Operating band unwanted emissions
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