REPORT ITU-R M.2530-0
Policy on Intellectual Property Right (IPR)
1 Introduction
2 Current regulation
2.1 International Telecommunication Union
2.1.1 Regulations/Recommendations/Reports
2.2 International Maritime Organization
2.2.1 Regulations as of July 2023
2.2.2 Performance standards
General:
Class of emission, frequency bands and channels:
Controls and indicators:
Permissible warming-up period:
Transmitter output power:
Receiver parameters:
2.3 International Association of Marine Aids to Navigation and
Lighthouse Authorities
2.3.1 Correspondence
2.3.2 IALA Standards, Guidelines and Recommendations
2.4 Other bodies/countries/companies
2.4.1 Regional Arrangement on the Radiocommunication
Service for Inland Waterways
2.4.2 Cybernetica
2.4.3 Estonia
2.4.4 The Netherlands
2.4.5 Comité International Radio-Maritime
3 Overview of the current situation
4 Maritime radio use cases
5 Terrestrial radio usage
6 Digital voice VHF Appendix 18 of the Radio Regulations
6.1 Technical characteristics of marine VHF radios
6.2 Technical characteristics of the VHF maritime frequency band,
RR Appendix 18
7 Requirements for voice communication
and associated digital selective calling in the VHF frequency band
8 Voice CODECS
8.1 CML Microcircuits
8.2 Digital voice systems
8.3 VoiceAge
8.4 ITU-T Codecs
8.5 Opus (free open audio codec)
8.6 Comparison of voice CODECS
9 Overview existing digital radio protocols
9.1 Digital private mobile radio
9.2 Next generation digital narrowband
9.3 Digital mobile radio
9.4 Trans-European trunked radio system
9.5 Comparison of digital radio protocols
9.6 Other issues raised
10 Implementing digital voice in marine VHF frequency bands
10.1 Possible scenarios
10.2 Inter-leaving channels
10.3 Re-farm a specific block
10.4 Re-farm the entire maritime VHF frequency band except for the
GMDSS
10.5 Re-farm the entire maritime VHF frequency band including the
GMDSS
10.6 Extension of Recommendation ITU-R M.1084 numbering
10.6.1 Proposed new Annex to Recommendation ITU-R
M.1084-5 – Assignment of channel numbers for digital voice communications on 25
kHz channels in the VHF maritime frequency band
11 Summary of existing digital radio protocols
12 Possible advice for digital public mobile radio marine
12.1 Proposed changes to ETSI TS 102 658
12.2 Address field related changes
12.3 “Communication mode” field related changes
12.4 “Category” field related changes
13 Summary assessment of the options noted in this report
Annex 1 Report from CYBERNETICA Analyses of different digital radio protocols
for use in maritime communication
A1.1 IALA recommendations
A1.2 Transceivers addressing
A1.3 Digital private mobile radio
A1.4 Next generation digital narrowband
A1.5 Digital mobile radio
A1.6 Trans-European trunked radio system
A1.7 Summary
A1.7.1 Digital private mobile radio marine
A1.7.2 Proposed changes from ETSI TS 102 490
“Communication mode” field related changes
“Category” field related changes
Channel Code
Call types
Subscriber mapping
Annex 2 Report from Estonia
A2.1 Summary of the maritime communication test
A2.2 Brief summary
A2.2.1 Description of transceivers
A2.3 Description of marine VHF communication digitalisation testing
methodology
Introduction
Annex 3 Report from The Netherlands Digital private mobile radio trial – port
of Rotterdam
A3.1 Foreword
A3.2 Goals
A3.3 Setup
A3.4 Used hardware
A3.5 Used frequencies
A3.6 Considerations
A3.7 Results
A3.8 Interference
A3.9 After trial considerations/questions
A3.10 Conclusions
Annex 4 International Telecommunication Union Codecs
A4.1 Recommendation ITU-T G.711
A4.2 Recommendations ITU-T G.722 and ITU-T G.722.1
A4.3 Recommendation ITU-T G.723.1
A4.4 Recommendation ITU-T G.726
A4.5 Recommendation ITU-T G.728: Coding of speech at 16 kbit/s
using low delay code excited linear prediction
A4.6 Recommendation ITU-T G.729: Coding of speech at 8 kbit/s
using conjugate-structure algebraic-code excited linear prediction
A4.7 Recommendation ITU-T G.729.1: ITU-T G.729 based embedded
variable bit-rate coder: An 8-32 kbit/s, scalable wideband, coder-bitstream
interoperable with ITU‑T G.729 codecs