name: IMD
full_form: Inter-modulation
context: TRP calculation in an RC does not rely on a coordinate system and as such no reference coordinate system is defined for the RC method, and no alignment between BS and test system is required. The BS should be placed/mounted in the working volume of the RC. It is advised (but not mandatory) to orient the BS is such a way that its antenna boresight is pointing towards a well-stirred part of the chamber (such as towards the stirrer). The RC testing procedure consists of the following steps: 1. Calculate Ambient Power Level: 1) Connect the RX antenna to a calibrated receiver test equipment using the same cables as in the calibration step. Turn on the BS control. Keep the BS RF power off. Terminate the REF TX ant in a 50 â¦ load. See figure 8.7-1 (b). 2) Measure the voltage data Uamb and calculate the ambient power level as 2. Calculate BS TRP: 1) Turn on the BS RF power and measure the received voltage UBS, see figure 8.7-1 (c). 2) Calculate the BS power as: 3) Calculate the TRP from the BS
description: Inter-modulation Distortion (IMD) refers to a measure of the interference caused by non-linear interactions between different frequency components in a telecommunication system. In the context of 3GPP TS 25.818, IMD is analyzed to derive suitable requirements for the 3GPP TMA (Telecommunications Management Architecture), ensuring minimal interference under various operating scenarios.
explanation: IMD is classified as a Measurement because it involves quantifying the level of distortion or interference caused by inter-modulation effects in a telecommunication system. The context highlights the analysis of IMD scenarios to derive requirements for minimizing interference, which aligns with the definition of a measurement entity.
section_title: 6.2.1	IMD requirements for the 3GPP TMA
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biotag_Description: B-Measurement,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Organization,B-Specification,O,B-Measurement,O,O,O,O,O,O,O,O,B-Organization,B-Miscellaneous,O,O,O,O,O,O,O,O,O,O