Design for upgrading Gehua Cable (China)

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Gehua
Network
Design
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A
complete
city-­‐wide
upgrade
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1/28/2005
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2. ( )
What is this all about?
Historical Background:
Gehua is the monopoly cable operator in Beijing, the capital of China, and is the
first IPOed cable company in China.
By regulation, it can only provide video service. With the policy trend of letting
cable also do the triple-play and the government mandated digital video rollout, it
has been cautiously upgrading its networks and the entire backend system to
prepare for the opportunities.
The existing network is a scattering-around headends + long-cascaded coaxial
system.
About this document:
This is the complete design of Gehua’s network (the entire city Beijing) using the
mini Fiber Node technology, plus centralized DOCSIS-CMTS.
The outcome of the new design were substantially reduced RF active counts,
lower power consumption and cost operation, and flexibility for further upgrade.
Extremely Confidential Property of iBIT
绝对 预 书

3. ( )
Version 2.0
Extremely Confidential Property of iBIT
绝对 预 书

4. :
B1
HFC
2005 1 28
Extremely Confidential Property of iBIT
绝对 预 书

5. 1. ........................................................................................................... 6
2. ........................................................................................................... 7
3. .................................................................................................. 8
4. ........................................................................................ 10
5. ............................................................................................ 12
6. ............................................................................................ 15
7. ............................................................................................ 20
8. ........................................................................................ 29
9. .............................................................. 31
10 .......................................................................................................... 33
Extremely Confidential Property of iBIT 5
绝对 预 书 .

6. 1.
mFN DWDM
Ø 90 80%
Ø 90
Ø 20%
Ø 40
Ø 99.999%
Ø
Ø
Extremely Confidential Property of iBIT 6
绝对 预 书 .

7. 2.
u DWDM HFC
²
²
²
²
u
²
²
²
Extremely Confidential Property of iBIT 7
绝对 预 书 .

8. 3.
1
2
3
4
5
(
)
CMTS
6
Extremely Confidential Property of iBIT 8
绝对 预 书 .

9. 7
Extremely Confidential Property of iBIT 9
绝对 预 书 .

10. 4.
4.1 B1
B1
214 500 10
1 2
1550nm B1 1310nm
4 2000 B1 CMTS
1310nm B1 1310nm
CMTS
B1 4 1000
4.2
B1
1310nm RF mFN
B1
+
1310nm mFN
RF RF
1550 DWDM + mFN + RF
DWDM B01 6 mFN
6
Extremely Confidential Property of iBIT 10
绝对 预 书 .

11. B01
B1 1310nm,
RF
1310nm RF
1310nm RF
B01 1550nm 1310nm
,
RF
1550
nm
DWDM
mFN
RF
DWDM
Extremely Confidential Property of iBIT 11
绝对 预 书 .

12. 1
2
5.
1310nm RF mFN
B1 B1
B1 B1
5.1
8
OP31S2D-xx OP31S2D-xx OP31S2D-xx OP31S2D-xx OP31S2D-xx OP31S2D-xx OP31S2D-EQ
Forward
-3.4
1310 NC + 1310 (BC+NC)
Reverse
1310 digital
mFN mFN mFN mFN mFN mFN mFN mFN
HFC 2
2
5.2
AT3310A AT3312A 28
DR3402 15
CH3000N PS3002D 5
NC4141S 214
OP91 30
3
Extremely Confidential Property of iBIT 12
绝对 预 书 .

13. 5.3
B1
28 52 214
428 2 56 8
2
B1
B1 iBIT
B1 856 108 -87%
(Km) 2140 270 -87% -654,500
54 28 -48% -624,000
214 28 -87% -930,000
17 5 -71% -144,000
-2,352,500
-87% -6,233
321,000 40,500 -87% -280,500
-2,639,233
-24.67
B1
B1 260
25
5.4
mFN
NC4000 Motorola SG
Extremely Confidential Property of iBIT 13
绝对 预 书 .

14. RF
Extremely Confidential Property of iBIT 14
绝对 预 书 .

15. 1
2
6.
1310nm mFN B1
B1
B1 B1 mFN RF
RF
6.1
RF
8
OP31S2D-xx OP31S2D-xx OP31S2D-xx OP31S2D-xx OP31S2D-xx OP31S2D-xx OP31S2D-EQ
Forward
-3.4
1310 NC + 1310 (BC+NC)
Reverse
1310 digital
mFN mFN mFN mFN mFN mFN mFN mFN
HFC 2
RF
500 RF
500 RF
Extremely Confidential Property of iBIT 15
绝对 预 书 .

16. 6.2
AT3310A AT3312A 28
DR3402 15
CH3000N PS3002D 5
NC4141H 214
OP91 30
3
6.3
RF B1
ü
28 52 28 214
ü
Extremely Confidential Property of iBIT 16
绝对 预 书 .

17. 52 428
ü RF
ü B1
B1
² 1 70
² B1 2.5
² RF 30 · 0.6 /
² 130 ·
² 2 · 50 / ·
RF
iBIT
214 214 0% 0
642 0 -100% -224,700
1529 0 -100% -229,350
2385 214 -91% -454,050
599,200 256,800 -57% -342,400
-796,450
-7.44
Extremely Confidential Property of iBIT 17
绝对 预 书 .

18. B1 iBIT
B1
856 108 -87%
(Km) 2140 270 -87% -654,500
54 28 -48% -624,000
214 28 -87% -930,000
17 5 -71% -144,000
-2,352,500
-87% -6,233
321,000 40,500 -87% -280,500
-2,639,233
-24.67
iBIT
RF 0.6 19,018 11,411 0.6 0 0
0.6 243,703 146,222 0.6 243,703 146,222
50 4,770 238,500 50 428 21,400
: 396,133 167,622
-228,510.80
10 -2,285,108.00
-2.14
RF
350 B1
30 B1
50
Extremely Confidential Property of iBIT 18
绝对 预 书 .

19. 6.4
RF
RF RF
Extremely Confidential Property of iBIT 19
绝对 预 书 .

20. 7.
B01
7.1
DWDM B01 6 mFN
HFC 6 B01
vHUB
1 B1,B3-B7 B01;
2 B01
3 B1 B1;
4 4000 (CLUSTER)
B1 6
B1 B1
Extremely Confidential Property of iBIT 20
绝对 预 书 .

21. Extremely Confidential Property of iBIT 21
绝对 预 书 .

22. Extremely Confidential Property of iBIT 22
绝对 预 书 .

23. B1
Extremely Confidential Property of iBIT 23
绝对 预 书 .

24. B1
Extremely Confidential Property of iBIT 24
绝对 预 书 .

25. 7.2
B01 6
AT3510 36
DR3402 81
CH3000N PS3002D 10
1550nm FA35xx 3
OP31S 5
/ BP35M OP35M/35D 18
OS32S 12
B1
1550nm FA35xx 2
/ / OP35xxF 2
OP35M 2
CH3000N PS3002D 1
OP31S 9
OS32S 4
Extremely Confidential Property of iBIT 25
绝对 预 书 .

26. 7.3
DWDM RF
n DWDM
n
HFC
n RF
n 1550nm
CNR, CSO/CTB
n
(vHUB)
n
9
Extremely Confidential Property of iBIT 26
绝对 预 书 .

27. B01 6
iBIT
1284 1284 0% 0
3852 0 -100% -1,348,200
9171 0 -100% -1,375,650
B1 5136 644 -87%
(Km) 12840 1610 -87% -3,930,500
3,595,200 1,540,800 -57% -2,054,400
(1310nm) 321 0 -100% -7,704,000
(1550nm) 0 36 100% 864,000
642 81 -87% -5,610,000
/ 62 16 -74% -552,000
1550nm 0 15 100% 1,800,000
/ 0 30 100% 510,000
0 36 100% 1,080,000
/ / 0 12 100% 768,000
-87% -37,433
1,926,000 241,500 -87% -1,684,500
-19,274,683
-30.02
Extremely Confidential Property of iBIT 27
绝对 预 书 .

28. iBIT
RF 0.6 114,081 68,449 0.6 0 0
0.6 1,462,219 877,331 0.6 1462219 877,331
50 28,614 1,430,700 50 2568 128,400
18000 24 432,000 0 0
550 1200 660,000 0 0
0.6 216000 129,600 0
: 3,598,080 1,005,731
-2,592,348.60
10 -25,923,486.00
-4.04
7.4
6.4
1550nm 1310nm
3RU CH3000,
vHUB
HFC
CMTS B01
CMTS
RF
Extremely Confidential Property of iBIT 28
绝对 预 书 .

29. 8.
8.1
RF
RF
B1
8.2
DWDM
DWDM
802.11
Extremely Confidential Property of iBIT 29
绝对 预 书 .

30. 8.3
DWDM
8.4
NC4000 Motorola SG
Extremely Confidential Property of iBIT 30
绝对 预 书 .

31. 9.
CMTS CMTS
CMTS
-
CMTS
CMTS DWDM ( ) HFC
ü CMTS
ü DWDM
ü
ü IP
2 40
20 CMTS
CMTS 4 7
33 51
11 17
CMTS
Extremely Confidential Property of iBIT 31
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32. B1
CMTS
B1 B01 6
6
6
CMTS 50 B01
CMTS B1 B01 CMTS
6 3 CMTS
CMTS
CMTS
CMTS
CMTS 36 36
CMTS 6 3
CMTS 51 100
Extremely Confidential Property of iBIT 32
绝对 预 书 .

33. 10
1
DWDM Li
Tingye, TCI CableLabs
Tom Elliot Adelphia Marwan Fawaz
AT&T, AT&T Broadband, Bell Labs
mFN , AT&T Broadband
IP @Home, Road Runner
DTV VOD ITV VOI AT&T
Bell Labs AT&T Labs AT&T
TCI AT&T Broadband
AT&T MBA
Liberty Media Corp
IBD-2000
Comcast Liberty Media International, Qwest
(US), UGC /UPC(Europe), J-com (Japan),
Extremely Confidential Property of iBIT 33
绝对 预 书 .

34. 2
Gehua/1310
no redundancy Nodes
Fwd 1 of 4 Headend OP91S8S-EQ 41
42
43
AT3313
44
45
46
47
-9.9 48
OP91S4S-EQ 49
50
AT3313 OP91S2S-60 51
-2.5 -6.6 52 Future
-4.3 OP91S4S-EQ 53
54
55
-6.6 56
OP91S8S-EQ 57 Future
58
AT3312 59
60
61
62
63
-9.9 64
OP91S8S-EQ 65
66
AT3312 67
68
69
70
71
-9.9 72
OP91S8S-EQ 73
74
AT3310 75 Future
76 Future
77
78
79
-9.9 80
OP91S8S-EQ 81
82
AT3310 83
84
85
86
87
-9.9 88
OP91S4S-EQ 89
90
OP91S2S-55 91
-6.6
AT3312 -3.9 92
-2.9 OP91S4S-EQ 93
94
95
-6.6
96
OP91S8S-EQ 97
98
AT3312 99 Future
100
101
102
103
-9.9
104
Extremely Confidential Property of iBIT 34
绝对 预 书 .

35. Gehua/1310
no redundancy
Nodes
Fwd 2 of 4 Headend OP91S8S-EQ
105
106
AT3312 107
108
117
118 Future
119 Future
-9.9
120 Future
OP91S8S-EQ
121
122
AT3312 123
124
125 Future
126
127
-9.9
128
OP91S8S-EQ
129
130
AT3312 131
132
133
134
135
-9.9
136
OP91S8S-EQ
137
138
AT3312 139
140
141
142
143
-9.9
144
OP91S8S-EQ
145
146
AT3312 147
148
149
150
151
-9.9
152
OP91S8S-EQ
161
162
AT3312 163 Future
164
165
166
167
-9.9
168
OP91S8S-EQ
169
170
AT3312 171 Future
172 Future
173
174
175
-9.9
176 Future
OP91S8S-EQ
177
178
AT3312 179
180
181
182
183 Future
-9.9
184 Future
Extremely Confidential Property of iBIT 35
绝对 预 书 .

36. Gehua/1310
no redundancy Nodes
OP91S8S-EQ
Headend 185
186
Fwd 3 of 4 AT3312 187
188 Future
189
190
191
-9.9
192
OP91S8S-EQ
193
194
AT3312 195
196
197
198
199
-9.9
200
OP91S8S-EQ
213
214
AT3312 215
216
217
218
219
-9.9
220
OP91S8S-EQ
221
222
AT3312 223
224
225
226
227
-9.9
228
OP91S8S-EQ
229
230
AT3312 231
232
233
234
235
-9.9
236
OP91S8S-EQ
237
238
AT3312 239 Future
240
241 Future
242
243 Future
-9.9
244 Future
OP91S8S-EQ
245
246
AT3312 247
248
249
250
251 Future
-9.9
252 Future
OP91S8S-EQ
253
254
AT3310 255
256
257
258 Future
259 Future
-9.9
260 Future
OP91S4S-EQ
AT3310 269 Future
270 Future
271
-6.6
272
Extremely Confidential Property of iBIT 36
绝对 预 书 .

37. Gehua/1310
no redundancy
Fwd 4 of 4 All Future Nodes
OP91S8S-EQ
Headend 109 Future
110 Future
AT3312 111 Future
112 Future
113 Future
114 Future
115 Future
-9.9
116 Future
OP91S8S-EQ
153 Future
154 Future
AT3312 155 Future
156 Future
157 Future
158 Future
159 Future
-9.9
160 Future
OP91S8S-EQ
201 Future
202 Future
AT3312 203 Future
204 Future
205 Future
206 Future
207 Future
-9.9
208 Future
OP91S4S-EQ
AT3310 209 Future
210 Future
211 Future
-6.6
212 Future
OP91S8S-EQ
261 Future
262 Future
AT3312 263 Future
264 Future
265 Future
266 Future
267 Future
-9.9
268 Future
Extremely Confidential Property of iBIT 37
绝对 预 书 .

38. Gehua/1310
no redundancy Nodes
DT4012-S
41
DT4012-S 42
Ret 1 of 4 DT4012-S 43
DT4012-S 44
DT4012-S
DT4012-S 45 49
DT4012-S 50
DT4012-S 46
DT4012-S 51
DT4012-S 47
52
DT4012-S
48 Future
DT4012-S 53 DT4012-S
57
DT4012-S 54 DT4012-S 58
DT4012-S 55 DT4012-S 59
Future 56 DT4012-S 60
DT4012-S 61 DT4012-S
65
DT4012-S 62 DT4012-S 66
DT4012-S
63 DT4012-S 67
DT4012-S
64
DT4012-S 68
DT4012-S 69 DT4012-S
73
70 74
Headend
DT4012-S DT4012-S
DT4012-S
71 Future 75
DR3402
BP3108 DT4012-S
72 Future 76
DT4012-S 77 DT4012-S
DR3402 81
DR3402
DT4012-S 78 DT4012-S 82
DR3402
DT4012-S
79 DT4012-S 83
DT4012-S
80
DT4012-S 84
DT4012-S 85 DT4012-S
89
DT4012-S 96 DT4012-S 90
DT4012-S
87 DT4012-S 91
DT4012-S
88
DT4012-S 92
DT4012-S 93 DT4012-S
97
DT4012-S 94 DT4012-S 98
DT4012-S
95 Future 99
DT4012-S
96
DT4012-S 100
DT4012-S 101
DT4012-S 102
DT4012-S
103
DT4012-S
104
Extremely Confidential Property of iBIT 38
绝对 预 书 .

39. Gehua/1310
no redundancy Nodes
DT4012-S
105
DT4012-S 106
Ret 2 of 4 DT4012-S 107
DT4012-S 108
DT4012-S
DT4012-S 117 121
DT4012-S 122
118
Future
DT4012-S 123
Future 119
DT4012-S 124
Future 120
125 DT4012-S
Future 129
DT4012-S 126 DT4012-S 130
DT4012-S 127 DT4012-S 131
DT4012-S
128 DT4012-S 132
DT4012-S 133 DT4012-S
137
DT4012-S 134 DT4012-S 138
DT4012-S
135 DT4012-S 139
DT4012-S
136
DT4012-S 140
DT4012-S 141 DT4012-S
145
142 146
Headend
DT4012-S DT4012-S
DT4012-S
143 DT4012-S 147
DR3402
BP3108 DT4012-S
144
DT4012-S 148
DT4012-S 149 DT4012-S
DR3402 161
DR3402
DT4012-S 150 DT4012-S 162
DR3402
DT4012-S
151 Future 163
DT4012-S
152
DT4012-S 164
DT4012-S 165 DT4012-S
169
DT4012-S 166 DT4012-S 170
DT4012-S
167 171
Future
DT4012-S
168 172
Future
DT4012-S 173 DT4012-S
177
DT4012-S 174 DT4012-S 178
DT4012-S 175 DT4012-S 179
176 DT4012-S 180
Future
DT4012-S 181
DT4012-S 182
Future 183
Future 184
Extremely Confidential Property of iBIT 39
绝对 预 书 .

40. Nodes
Gehua/1310 DT4012-S
185
186
no redundancy
DT4012-S
DT4012-S 187
188
Future
Ret 3 of 4
DT4012-S
DT4012-S 189 193
DT4012-S 194
DT4012-S 190
DT4012-S 195
DT4012-S 191
DT4012-S 196
DT4012-S
192
DT4012-S 197 DT4012-S
213
DT4012-S 198 DT4012-S 214
DT4012-S 199 DT4012-S 215
DT4012-S
200 DT4012-S 216
DT4012-S 217 DT4012-S
221
DT4012-S 218 DT4012-S 222
DT4012-S
219 DT4012-S 223
DT4012-S
220
DT4012-S 224
DT4012-S 225 DT4012-S
229
Headend DT4012-S 226 DT4012-S 230
DT4012-S
227 DT4012-S 231
DR3402
BP3108 DT4012-S
228
DT4012-S 232
DT4012-S 233 DT4012-S
DR3402 237
DR3402
DT4012-S 234 DT4012-S 238
DR3402
DT4012-S
235 Future 239
DT4012-S
236
DT4012-S 240
Future 241 DT4012-S
245
BP3108
DR3402
DT4012-S 242 DT4012-S 246
243 DT4012-S 247
Future
244
DT4012-S 248
Future
DT4012-S 249 DT4012-S
253
DT4012-S 250 DT4012-S 254
251 DT4012-S 255
Future
252 DT4012-S 256
Future
DT4012-S 257
258
Future
Future 259
Future 260
269
Future
270
Future
DT4012-S
270
DT4012-S
271
Extremely Confidential Property of iBIT 40
绝对 预 书 .

41. Gehua/1310
no redundancy
Ret 4 of 4
Nodes
All Future DT4010 Future 109
Cascaded Future 110
Future 111
Future 112
Future 113
Future 153
Future 114 154
Future
Future 115 155
Future
Future 116 Future 156
Future 157 Future 201
Future 158 Future 201
Future 159 Future 203
Future 160 Future 204
Headend
Future 205
Future 206
BP3108
DR3402
Future 207
DR3402
Future 208
DR3402
Future 209 Future 261
Future 210 Future 262
Future 211 Future 263
Future 212 Future 264
Future 265
Future 266
Future 267
Future 268
Extremely Confidential Property of iBIT 41
绝对 预 书 .

42. 3
Extremely Confidential Property of iBIT 42
绝对 预 书 .

43. 4 CMTS
B1 208 16 57
500 104 000 8
000 28 500
FN FN FN FN
/FN
500 208 135 16 57
104 000 67 500 8 000 28 500
FN 1400
1.3 2
2025 FN
3 40
20
FN 2
40 20
67 500 1350 540 108
1M 128K :
Mbps Mbps
108 13.824
6MHz 64QAM 27Mbps
1.6MHz QPSK 2.56Mbps
, 6 CMTS
FN
CMTS
Extremely Confidential Property of iBIT 43
绝对 预 书 .

44. FN FN FN
135 16 57 208
67500 8000 28500 104000
2% 2% 2%
1350 160 570 2080
40 40 40
540 64 228 832
20 20 20
108 13 46 166
166 1Mbps 166Mbps
166 0.128Mbps=21.25Mbps
CMTS 166/27=6.15
CMTS 21.25/2.56=8.3
BSR 12 CMTS
6MHz 64QAM 1.6MHz QPSK 12 27Mbps
324Mbps 12 4 2.56Mbps=122.88Mbps
108Mbps/324Mbps=33%
13.82Mbps/122.88Mbps=11%
208 HSD
166Mbps/324Mbps=51%, 21.25Mbps/122.88Mbps=17%
Extremely Confidential Property of iBIT 44
绝对 预 书 .

45. 5
Extremely Confidential Property of iBIT 45
绝对 预 书 .