№ lp_2_3_21494
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This document presents a proposal for a new APT/AWG Report addressing the potential regulatory considerations for safe operation of aviation radio altimeters amid the rollout of 5G services in the Asia-Pacific region.
Year: 2022
Region / City: Asia-Pacific Region, Bangkok, Thailand
Topic: Telecommunications, Aviation, 5G
Document Type: Proposal
Organization / Institution: Boeing Australia Holdings, Asia-Pacific Telecommunity (APT)
Author: Boeing Australia Holdings
Target Audience: APT members, telecommunications regulators, aviation stakeholders
Period of Validity: Ongoing
Approval Date: 28 August 2022
Date of Changes: Not specified
Price: 8 / 10 USD
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Protection of Radio Altimeters from 5G/MFCN in the 3.4–3.8 GHz Band, ECC PT1(21)006, January 2021
Document number: ECC PT1(21)006
Meeting: ECC PT1 #67 Web meeting, 19–21 and 26–28 January 2021
Date issued: 11 December 2020
Source: France
Subject: Protection of radio altimeters from 5G/MFCN in the band 3.4–3.8 GHz
Type of document: Working document and proposal
Organisation: ECC PT1 (CEPT Electronic Communications Committee Project Team 1)
Related report: RTCA Report on 5G interference to radio altimeters (October 2020)
Frequency bands concerned: 3.4–3.8 GHz and 4 200–4 400 MHz
Geographical scope: Europe, with reference to France
Regulatory context: European harmonisation measures for 5G in the 3.5 GHz band
Annex: Immediate measures for the protection of radio altimeters in France
Parameters and Methodology to Study the Impact of IMT on Radio Altimeters in the 3.4–3.8 GHz and 3.8–4.2 GHz Bands (ECC PT1, issued 19 June 2023)
Year: 2023
Date issued: 19 June 2023
Organization: ECC PT1 (Electronic Communications Committee Project Team 1)
Source: ANFR
Country submitting proposal: France
Document identifier: ECC PT1(23)144
Subject: Impact of IMT/5G base station emissions on aircraft radio altimeters
Frequency bands considered: 3.4–3.8 GHz (MFCN) and 3.8–4.2 GHz (WBB LMP)
Usage category considered: UC1 radio altimeters for civil aviation CAT III automatic landing operations
Technical focus: Interference assessment, coexistence studies, protection criteria for radio altimeters
Methodology elements: Scenario definition, base station parameters, antenna patterns, protection criteria and assumptions
Study scenario: Aircraft landing trajectory near airport runway with nearby 5G base station and user equipment
Propagation model: Free-space path loss (ITU-R P.525-4)
Protection criteria sources: RTCA and AVSI reports
Research phases proposed: Phase 1 – coexistence conditions with existing radio altimeters; Phase 2 – coexistence with future radio altimeter parameters
Target audience: ECC PT1 participants, spectrum regulators, aviation and telecommunications technical experts
Topics: C-Band 42-44 Altimeters