name: DC
full_form: Direct Current
context: at the transmitter (gNB) side is modulated i.e., data is neither rate-matched nor punctured. - Signal quality requirement (e.g., EVM) corresponding to DC subcarriers is up to RAN4. - For the uplink, transmitted DC subcarrier at the transmitter (UE) side is modulated i.e., data is neither rate-matched nor punctured. - Signal quality requirement (e.g., EVM) corresponding to DC subcarriers is up to RAN4. - For the uplink, the transmitter DC subcarrier at the transmitter (UE) side should avoid collisions at least with DM-RS if possible. - For the uplink the specification should define at least one particular subcarrier as the candidate position of DC subcarrier, e.g., DC subcarrier is located at the boundary of PRBs - For the uplink, means for the receiver to determine DC subcarrier location should be specified. - This involves semi-static signalling from UE and also standard specified DC subcarrier location. - When DC subcarrier is not present, all subcarriers within the receiver
description: DC (Direct Current) refers to a specific parameter in the context of 5G numerologies and frame structure, particularly related to signal quality requirements and subcarrier positioning.
explanation: The provided context from 3GPP TS 38.912 highlights DC as a critical attribute for signal quality and subcarrier management in uplink transmissions, thus classifying it as a Parameter.
section_title: 8.1Numerologies and frame structure
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