name: LEO
full_form: Low Earth Orbit
context: The following test conditions should be maintained for Satellite Access - The same ephemeris info will be maintained during each test. - A set of ephemeris information are pre-defined for each satellite corresponding to respective epoch times in TS 36.508 [12]. - The range of the selected constant delay shift is as follows: - For NGSO an altitude of 600km and 1200km on a circular orbit are considered. The range of the one-way delay between UE and satellite is from 2ms (lowest value for LEO orbit 600km) to 6.67ms (highest value for LEO orbit 1200km). - Constant delay value is derived from ephemeris info (SIB31) and UE location associated to zero Doppler or non-zero Doppler value under test.
description: Low Earth Orbit (LEO) refers to a satellite orbit around the Earth at an altitude of approximately 600-1200 km. In the context of 3GPP TS 36.521, LEO is used to simulate satellite access conditions for testing purposes, with specific considerations for one-way delay between UE and satellite.
explanation: The term 'LEO' is classified as a Technology because it describes a specific type of satellite orbit used in the technical standard 3GPP TS 36.521 for simulating satellite communication.
section_title: A.6.1	General
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