name: OCNG
full_form: OFDMA Channel Noise Generator
context: The following OCNG patterns are used for modelling allocations to virtual UEs (which are not under test). The OCNG pattern for each sub frame specifies the allocations that shall be filled with OCNG, and furthermore, the relative power level of each such allocation. In each test case the OCNG is expressed by parameters OCNG_RA and OCNG_RB which together with a relative power level () specifies the PDSCH EPRE-to-RS EPRE ratios in OFDM symbols with and without reference symbols, respectively. The relative power, which is used for modelling boosting per virtual UE allocation, is expressed by: where denotes the relative power level of the i:th virtual UE. The parameter settings of OCNG_RA, OCNG_RB, and the set of relative power levels are chosen such that when also taking allocations to the UE under test into account, as given by a PDSCH reference channel, a transmitted power spectral density that is constant on an OFDM symbol basis is targeted. Moreover, the OCNG pattern is accompanied by
description: The OFDMA Channel Noise Generator (OCNG) is a technology used in modeling allocations to virtual User Equipment (UEs) in the context of 3GPP specifications. It generates noise patterns for simulating channel conditions, allowing for the testing and evaluation of UE performance under various scenarios. The OCNG parameters, such as OCNG_RA and OCNG_RB, are utilized to specify the power levels of allocations with and without reference symbols, enabling the modeling of boosting per virtual UE allocation.
explanation: The context describes OCNG as a tool used for simulating channel conditions in 3GPP specifications. It involves technical aspects like noise generation, parameter control (OCNG_RA, OCNG_RB), and impact on power levels within allocations. These characteristics firmly place OCNG within the category of Technology.
section_title: A.5.1	OCNG Patterns for FDD
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