1、 GYGY/T 268.2 2013 2 Digital audio broadcasting in FM band Part2:Multiplexing 2013 - 11 - 11 2013 - 11- 11 GY/T 268.2 2013 I . III . IV 1 . 1 2 . 1 3 . 1 4 . 3 4.1 . 3 4.2 . 3 4.3 . 3 5 . 3 6 . 5 6.1 . 5 6.2 . 6 6.3 . 6 7 . 10 7.1 . 10 7.2 . 12 7.3 . 14 A . 22 B . 23 C CRC .24D . 25 1 . 4 2 . 4 3 .5
2、4 . 5 5 . 6 6 . 11 7 . 13 8 . 14 9 . 18 10 . 19 11 . 20 A.1 . 22 A.2 . 22 C.1 CRC . 24 GY/T 268.2 2013 II D.1 1 . 25 D.2 2 . 26 D.3 3 . 26 1 . 5 2 . 6 3 . 7 4 . 8 5 . 11 6 . 15 7 . 16 8 . 17 9 .1710 . 18 11 . 19 12 . 20 13 . 21 14 . 21 B.1 1 . 23 B.2 1 . 23 GY/T 268.2 2013 III GY/T 268 1 2 GY/T 268
3、2 GB/T 1.1-2009SAC/TC 239 GY/T 268.2 2013 IV 567A16 100040 15 100085 1391027720 11A716 100097 1 5 6 7 A 2 5 6 7 A GY/T 268.2 2013 1 2 1 87MHz 108MHz87MHz 108MHz2 GB/T 2659-2000 GB/T 4880.2-2000 2 3 GB/T 15273.1-1994 1GB/T 28161-2011 GY/T 268.1-2013 1 3 3.1 service 3.2 service description informati
4、on channel 3.3 service data channel 3.4 multiplex frame GY/T 268.2 2013 2 3.5 control multiplex frame 3.6 service multiplex frame 3.7 multiplex sub-frame 3.8 transmission mode ofmultiplex frame 3.9 network 3.10 adjacent network 3.11 audio section 3.12 audio unit3.13 data section3.14 data unit 3.15 e
5、ncapsulation mode1 2 GY/T 268.2 2013 3 3.16 data block 4 4.1 CRC Cyclic Redundancy Check ES Elementary Stream ESG Electronic Service GuideLSB Least Significant BitMSB Most Significant Bit MSF Multiplex Sub-Frame MSF_ID Multiplex Sub-Frame Identifier NIT Network Information Table SMCT Service Multipl
6、ex ConfigurationTableSMF_ID Service Multiplex Frame Identifier 4.2 bslbf bit string, left bit firstuimsbf unsigned integer most significant bit first 4.3 4.3.1 1 4.3.2 1 4.3.3 = = 5 1 GY/T 268.2 2013 4 1 GY/T 268.1-2013 4.32NN1 4112 AB3 1GY/T 268.2 2013 5 36 6.1 4 1 10 8161 CRCN6 164 1 (N) for (I=1;
7、 I=N; I+) 106 16uimsbf uimsbf uimsbf CRC_8 8 bslbf 10 CRC_8 GY/T 268.2 2013 6 6 016 CRC_8 8 CRC CRC CRC C 6.2 5 1 N5 6.3 ESG2 2 0x00 0x01 SMCT 0x02 NIT 0x03 ESG 0x04 0xFF ESG ESG 6.3.1 3 GY/T 268.2 2013 7 3 8 bslbf 16 uimsbf 4 uimsbf 4 uimsbf 4 uimsbf 6 bslbf (M1) for i = 0; i M1; i+ 6 uimsbf 6 bslb
8、f 1 1 bslbf bslbf 4 bslbf (M2) 4 uimsbf for j = 0; j M2; j+ 16 bslbf 16 bslbf CRC_32 32 bslbf 8 2 16 CRC_32 4 0 4 40 15 1 GY/T 268.2 2013 8 66 SMF_ID 1 1 1 0 1 1 0 4 ,1 4 1 0D4 16 CRC_32 32 CRC CRC CRC C 6.3.2 4NIT 4 8 bslbf 16 uimsbf 4 uimsbf 4 uimsbf 4 uimsbf 4 bslbf if( =0) 24bslbf GY/T 268.2 201
9、3 9 4 (N1) for i1 = 0; i1 N1; i1+ 36 12 32 bslbf uimsbf bslbf (N2) 8 uimsbf for i2 = 0; i2 N2; i2+ 8 bslbf (N3) 6 uimsbf 2 bslbf for i3 = 0; i3 N3; i3+ (N4) for (i4 = 0; i4 N4; i4+) 36 4 bslbf uimsbf 32 bslbf 16 bslbf CRC_32 32 bslbf 8 2 16 CRC_32 4 0 4 40 15 1 24 GB/T 2659-2000 3 GB/T 15273.1-1994
10、824 GY/T 268.2 2013 10 3 CHN 0100 0011 0100 1000 0100 1110 36 0 31 12 32 10Hz 0x00000000 0x00000001 8 8 NIT GB/T 28161-2011 A6 36 0 31 4 32 10Hz 0x00000000 0x00000001 CRC_32 32 CRC CRC CRC C 7 7.1 6 5 GY/T 268.2 2013 11 2 n1ESG84 262 446 4 424 322424 243CRC4 326 5 8 uimsbf 4 uimsbf 2 bslbf 2 bslbf 6
11、 bslbf 6 bslbf 4 uimsbf 4 uimsbf ESG 4 uimsbf 4 bslbf (N) 4 uimsbf 1 24 uimsbf for i = 2; i = N; i+ GY/T 268.2 2013 12 5 24 uimsbf if ( =10) 32bslbf CRC_32 32 bslbf 8 CRC_8 4 1 2 00 011011 6 SMF_ID 1 40 15 140 15 1 ESG 4 ESG 4 1 24 24 32 CRC_32 32 CRC CRC CRC C 7.2 GY/T 268.2 2013 13 157 1 2 n78 1 G
12、Y/T 268.2 2013 14 8 561 n8 32 21 32114 1 1 1 36 4 248 56CRC3111 32141 368 7.3 7.3.1 6GY/T 268.2 2013 15 6 8 uimsbf 1 bslbf 1 bslbf 1 bslbf 1 bslbf 1 bslbf 3 bslbf if = 1 32 uimsbf else null if = 1 21 uimsbf N 3 uimsbf else null if = 1 21 uimsbf 3 bslbf else null if = 1 & = 1 for j = 0; j N; j+ 4 bsl
13、bf 1 bslbf 1 bslbf 13bslbf bslbf 6 bslbf if = 1 14 bslbf 2 bslbf else null if = 1 GY/T 268.2 2013 16 6 4 bslbf 4 bslbf else null if = 1 24 bslbf else null else null CRC_32 32 bslbf 8 CRC_32 1 1 0 1 10 1 3 10 1 1 0 1 7 7 1 1 1 0 2 32 1/22500 21 3 21 4 GY/T 268.2 2013 17 1 1 0 1 1 0 1 1 0 3 8 8 001 01
14、0 011 5.1 14 100 / 4 9 9 kHz 0 1 2 16 3 22.054 24 5 32 6 44.1 7 48 8 96 9 15 24 GB/T 4880.2-2000 3GB/T 15273.1-1994 8 24 CRC_32 32 CRC CRC CRC C 7.3.2 GY/T 268.2 2013 18 910 1 ES2 7.3.4 8n11 nCRC40 3216 3 5 16 9 10 (N) 8 uimsbffor i = 0; i N; i+ 16 uimsbf3 uimsbf5 bslbf 16 uimsbf CRC_32 32 bslbf 8 1
15、6 GY/T 268.2 2013 19 3 161/22500 CRC_32 32 CRC CRC CRC C 7.3.3 1011 12 7.3.4 1 n1 n CRC88 16322410 11 (N) 8 uimsbf for i = 0; i N; i+ 8 bslbf 16 uimsbf CRC_32 32 bslbf GY/T 268.2 2013 20 8 8 12 12 0 ESG 1 ESG 2 63 64 65 159 160 161 169 170 254 255 16 CRC_32 32 CRC CRC CRC C 7.3.4 2 11 /1 n132 40218
16、812CRC8 11 CRC GY/T 268.2 2013 21 13 8 bslbf 1 bslbf 1 bslbf 2 bslbf 12 uimsbf if = 8 bslbf CRC_8 8 bslbf 8 0x55 1 / /1 0 1 / /1 0 2 14 14 00 01 10 11 128 10 12 CRC_8 8 CRC CRC CRC C GY/T 268.2 2013 22 A A A A.1.1 A.11 2 nA.1 A.1.2 A.2 H-1 H-2 H-k L-1 L-2 L-nA.2 GY/T 268.2 2013 23 B A.2 B B B.1 a N
17、P_data_all, P_data_all = N*P_dataP_data 1 B.1 b N P_cic_all, P_cic_all = N*P_cic+6 -6 P_cic 1B.2 B.1 1 P_data LDPC 1 2 3 QPSK 1/4 23040 25344 QPSK 1/3 30720 33792 QPSK 1/2 46080 50688 QPSK 3/4 69120 76032 16QAM 1/4 46080 50688 16QAM 1/3 61440 67584 16QAM 1/2 92160 101376 16QAM 3/4 138240 152064 64QA
18、M 1/4 69120 76032 64QAM 1/3 92160 101376 64QAM 1/2 138240 152064 64QAM 3/4 207360 228096 B.2 1 P_cic 1 2 3 QPSK 1/4 846 782 67416QAM 1/4 1698 1570 1354 64QAM 1/4 2550 2358 2034 GY/T 268.2 2013 24 C C C CRC CRC CRCCRC CRC n C.1 11221-1- xgxgxgxxG nnnn C.1 CRC n n C.1 b0 bn-1b0 1 b1 x b2 x2 bn-1 xn-1g
19、i 1 g1 g1 gn-2 gn-1b0 b1 bn-2 bn-1LSB MSB C.1 CRC CRC 1 MSBMSB bn-1LSBCRC CRC MSBCRC 1 CRC C.2 C.3 124578101112162223263232 xxxxxxxxxxxxxxxG C.2 14588 xxxxG C.3 GY/T 268.2 2013 25 D D D a) 1 D.1 4 41 1 2 2 3 34 4 1 1000 20100 3 0010 40001 4 0 1 2 3 4110000011201000022300100033400010044D.1 1 b) 2 D.2 4 31 1 2 2 3 34 1 1100 2 00103 0001 3 0 GY/T 268.2 2013 26 1 2 3 411100001121200100032300010043D.2 2 c) 3 D.3 6 41 1 2 2 1 23 3 4 41 1100 11 2 1100 10 3 0010 04 0001 0 1 2 3 41110011113001000534000100642110010223142D.3 3 2 GY/T 268.2 2013 * 010 86093424 86092923 100866
