1、 547092011 DRM (DCP) 27 2002 . 184- , 1.02004 . 1 - () - - , - ( -)2 3 13 2011 . 870-4 - (ETSI) (DRM). (DCP) (ETSI TS 102 358 v1.1.1 (2005-01) Digital Radio Mondiale (DRM); Specific Restrictions for the use ofthe Distribution and Communication Protocol (DCP)5 , - . - () . , , 2012 , - - II 547092011
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4、P, , - DRM , DCP.2 .3 , , 3.1 :3.1.1 (byte): 8 .3.1.2 (Distribution and Communication Protocol; DCP): , , / - - .3.1.3 (Coordinated Universal Time; CUT): , SI , - ( ) UTC c177 0,9 . (TAI) UTC 10 1 1972 . ( TAI UTC, ), 25 2003 . 22 , , TAI = UTC + 32 .1 547092011 3.1.4 - (MAC address): 48- , ; ; TCP/
5、IP.3.1.5 MDI (MDI Packet): AG , TAG , ETSI 2.3.1.6 TAG (TAG Item): DCP , - , .3.1.7 TAG (TAG Name): TAG , - .3.1.8 TAG (TAG Packet): TAG , .3.1.9 TAG (TAG Value): TAG .3.2 :N N, . , 216 42.3.3 :AF (Application Framing (a DCP Protocol Layer) ( DCP );AFS (Alternative Frequency Switching) ;ASI (Asynchr
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7、 Component) ( DRM);FEC (Forward Error Correction) ;FF (File Framing (a DCP Protocol Layer) () ( DCP -);GMT (Greenwich Mean Time) ;GPS (Global Positioning System) ;IP (Internet Protocol) ;IPsec (IP Security) , - IP, / IP ;ISO (International Organization for Standardization) -;MCI (Modulator Control I
8、nterface) ;MDI (Multiplex Distribution Interface) ;MFN (Multi-Frequency Network) ;MJD (Modified Julian Date) ;MPEG (Moving Picture Experts Group) ISO , - ; , - ;MSb (Most Significant Bit) ;MSB (Most Significant Byte) ;2 547092011MSC (Main Service Channel (DRM Multiplex component) (DRM );OFDM (Orthog
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10、RM );SDI (Service Distribution Interface) ;SFN (Single Frequency Network) ;SMFN (Synchronized Multi-Frequency Network) ;TAI (International Atomic Time (Temps Atomique International) ;TCP (Transmission Control Protocol (IP-based protocol) , , TCP/IP;UDP (User Datagram Protocol (IP-based protocol) - (
11、 IP );UTC (Coordinated Universal Time) . - , :- , , ;- (MSb) ., MSb b7, LSb b0;- ( ) .4 DCP DRM4.1 , DRM DCP IP, . , , , . DCP - (. ETSI 3). (), - DRM , DCP ( ), - :- (MDI) (. ETSI 2) DRM DRM;- (MCI) ;- (SDI) DRM;- (RSCI) (. ETSI 4) - DRM .4.2 , DRM , DCP, 1.3 547092011 DCP-DRM - - . RSCI () MDI .4.3 DRM 2 DRM , , .4 547092011 1 DRM 2 DRM 4.4 DRM 36 - DRM .5 547092011 3 4 5 DRM DCP (DCP) (.ETSI 3) ,
