name: HAPS
full_form: High Altitude Platform Station
context: ITUâR began to study HAPS in the 1990s initially for fixed services. The telecommunications ecosystem and technology enablers for HAPS have evolved significantly since then. At WRC-2000, the bands 1885 â 1980 MHz, 2010 â 2025 MHz and 2110 â 2170 MHz were identified for HAPS operating as IMT Base Stations, in accordance with Resolution 221 (Rev.WRC-07) [3]. With increasing interest in HAPS to offer mobile services, the WRC-19 agreed to study certain frequency bands which have been already identified for IMT below 2.7 GHz for HAPS as IMT Base Stations (HIBS). ITU-R Working Party 5D is currently studying co-existence requirements for HIBS in the additional three bands listed in Table 5.4-1 to support spectrum identification decisions in WRC-23 in accordance with Resolution 247 (WRC-19) [3]. NOTE: In the current ITU terminology, the use of HAPS to implement IMT (i.e. offer mobile wireless services) is referred to as âHAPS as IMT Base Stationsâ or HIBS. Table 5.4-1: Frequencies for HAPS as
description: High Altitude Platform Station (HAPS) is a technology that uses platforms situated at high altitudes, like balloons or drones, to deliver wireless communication services. Within the framework of 3GPP specifications, HAPS is being investigated for its potential in providing mobile services, especially as IMT (International Mobile Telecommunications) base stations.
explanation: The text explicitly states that HAPS is a telecommunications technology used for wireless communication and mobile services, aligning with the definition of telecommunications technologies.
section_title: 5.3Regulatory aspects for HAPS
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