name: TRMS
full_form: Total Radiated Multi-antenna Sensitivity
context: The average TRMS of free space data mode portrait (FS DMP), free space data mode landscape (FS DML), and free space data mode screen up (FS DMSU), is defined as the FR1 MIMO OTA requirement. The averaging shall be done in linear scale for the TRMS results at these DUT positions, according to the formula: where Such that MODE is one of {FS_DMP, FS_DML, FS_DMSU}, and {PMODE,70,0, â¦, PMODE,70,11} are the measured sensitivity values at each azimuth position at the 70% throughput outage. If 1 azimuth position does not result in a defined measured sensitivity at 70% throughput, SMODE,70 is calculated using the 11 measured sensitivities and the maximum downlink RS-EPRE PRS-EPRE-MAX (substitution approach) for the one missing result. PRS-EPRE-MAX is the maximum downlink RS-EPRE supported by the test system, and is defined as -80dBm/15kHz (or equivalent -77dBm/30kHz) for FR1 MIMO OTA. The TRMS shall be measured at the mid channel as specified in TS 38.508-1 subclause 4.3.1 [7]. The average TRMS
description: Total Radiated Multi-antenna Sensitivity (TRMS) is a network performance metric used to evaluate the sensitivity of multi-antenna systems in free space data modes. It is defined as the average sensitivity of multiple antenna configurations and is measured at the mid channel.
explanation: The context explicitly states that TRMS is a requirement for FR1 MIMO OTA testing, and it provides a formula for calculating the average TRMS. This indicates that TRMS is a measurable quantity used to assess network performance, which aligns with the definition of a Measurement entity type.
section_title: 6.1.2Total Radiated Multi-antenna Sensitivity (TRMS)
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