name: 2D
full_form: two-dimensional
context: Two different measurement grid types are considered: - The constant step size grid type has the azimuth and elevation angles uniformly distributed as in the examples illustrated in Figures M.1-1 in 2D and M.1-2 in 3D. Figure M.1-1: Distribution of measurement grid points in 2D for a constant step size grid with ïï±=ïï¦=15o (266 unique measurement points) Figure M.1-2: Distribution of measurement grid points in 3D for a constant step size grid with ïï±=ïï¦=15o (266 unique measurement points) - Constant density grid types have measurement points that are evenly distributed on the surface of the sphere with a constant density as in the example illustrated in Figures M.1-3 in 2D and M.1-4 in 3D. Figure M.1-3: Distribution of measurement grid points in 2D for a constant density grid with 266 unique measurement points Figure M.1-4: Distribution of measurement grid points in 3D for a constant density grid type with 266 unique measurement points
description: Two-dimensional (2D) refers to a geometric representation or configuration that exists in two dimensions, typically described by length and width. In the context of 3GPP TS 38.521, it relates to the distribution of measurement grid points for antenna radiation pattern measurements.
explanation: The abbreviation '2D' is classified as Miscellaneous because it does not fit into any specific telecommunications category but is relevant in describing geometric configurations and representations within the context of 3GPP specifications.
section_title: M.1Grid Types
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