ITU-R M 587-1-1986 Coast Station Identities and Initiation of Location Registration in an Automated VHF UHF Maritime Mobile Telephone System - Section 8C - Maritime Mobile Service .pdf

1、242 CCIR VOLUME*VIII 90 E 4855232 05LL533 3 Rec. 3587-1 RECOMMENDATION 587-1 COAST STATION IDENTITIES AND INITIATION OF LOCATION REGISTRATION IN AN AUTOMATED VHF/UHF MARITIME MOBILE - TELEPHONE SYSTEM (Question 23/8) (1982-1986) The CCIR, CONSIDERING (a) (6) tion E.210/F.120, coast station identitie

2、s are formed as follows: Recommendation 586 (Automated VHF/UHF maritime mobile telephone system); that in accordance with Appendix 43 of the Radio Regulations (Geneva, 1979) and CCITT Recommenda- where the MID reflects the country in which the coast station is located and X6, X7, Xp and Xg are any f

3、igure from O to 9; (e) that location registration procedures are defined as those to be followed for a ship station identity to be entered in a location register of a maritime switching centre (MSC); (d) that location registration procedures are initiated by ship stations; (e) that up to 100 coastal

4、 areas may belong to one MID and no more than 100 coast stations need to be accommodated within one coastal area; (f) that each individual coast station must have a unique identity, UNANIMOUSLY RECOMMENDS 1. that for a given MID a coastal area be identified by the digits X6 X7 ; that within one coas

5、tal area a coast station be identified by the digits x8 Xg ; 2. 3. that the ship station initiates a location registration procedure when it detects a change in one or more of the digits of the sequence MID X6 X7 of the identity O O MID x6 X7 X8 Xg belonging to the received coast station. COPYRIGHT International Telecommunications Union/ITU RadiocommunicationsLicensed by Information Handling Services