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���� Comit� 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