name: EPRE
full_form: Energy Per Resource Element
context: to the number of DM-RS CDM groups without data as described in Clause 5.1.6.2. The DM-RS scaling factor specified in Clause 7.4.1.1.2 of [4, TS 38.211] is given by . Table 4.1-1: The ratio of PDSCH EPRE to DM-RS EPRE When the UE is scheduled with one or two PT-RS ports associated with the PDSCH, - if the UE is configured with the higher layer parameter epre-Ratio, the ratio of PT-RS EPRE to PDSCH EPRE per layer per RE for each PT-RS port () is given by Table 4.1-2 or Table 4.1-2A according to the epre-Ratio, the PT-RS scaling factor specified in clause 7.4.1.2.2 of [4, TS 38.211] is given by. - otherwise, the UE shall assume epre-Ratio is set to state '0' in Table 4.1-2 if not configured. Table 4.1-2: PT-RS EPRE to PDSCH EPRE per layer per RE (), if [enhanced-dmrs-Type_r18] is not configured in DMRS-DownlinkConfig Table 4.1-2A: PT-RS EPRE to PDSCH EPRE per layer per RE (), if [enhanced-dmrs-Type_r18] is configured in DMRS-DownlinkConfig For link recovery, as described in clause 6 of
description: Energy Per Resource Element (EPRE) is a parameter used to describe the energy allocation for downlink transmissions in the context of 5G New Radio (NR). It represents the ratio of power allocated to different resource elements, such as PDSCH and DM-RS, within a transmission.
explanation: The provided text explicitly states that EPRE is a parameter used in 5G NR for describing energy allocation during downlink transmissions. This aligns with the definition of a parameter as a measurable quantity or factor influencing a system's behavior.
section_title: 4.1Power allocation for downlink
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