Patent AU-2018236894-B9 (AU)
Title: PON system and communication control method
Inventor: KUREBAYASHI HIROKI
IPC: H04B10/00
Filed: 2018-04-25
Granted: 2022-12-15
Abstract: li| 40 J a T RI *'1 k~l M Rlf E f'|i REl 
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2018 12 f13 H (13.12.2018) W O 2018/225414 A1 
WIPO I PCT 
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H04L 12/44 (2006.01) H04B 10/272 (2013.01) 6 * 1 9 Kanagawa (JP).  
H04B10/03(2013.01) (72) RBA,: 4# * 4 *(KUREBAYASHI Hiroki); 
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(258MR 25E(25.0X.208A) Kanagawa (JP).  
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tJRR 2017-114078 2017*69(09.06.2017) JP $tF$$ hfr Kanagawa (JP).  
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BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, 
CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 
(54) Title: PON SYSTEM AND COMMUNICATION CONTROL METHOD 
(54)R0):If: P O N t7 A itfi-ral$ 
FaL-T 100 
200 300 
-301 
(r_320 y321 A 722 
,400 7401 1402 
A79*s% ONU 501 ONU 502 
510 61602 
- VolP-GW -01 VoP-GW -702 
550 5 802 330 Optical line control unit 
AV 1,901 2 510Opiicalransmiss ion/reception unit 
540520 Optica inetmination unit 
-50 3 530 Packet transfer unit 
600 540 Emergency notification detection unit 
VoP-G5700 10 50 Emergency dispatcing control unit 900, 901, 902 Telephonexterminal 
900 
(57) Abstract: The present invention ensures the dispatching of an emergency notification from a terminal device when a 
communication failure due to constant light emission of an optical network unit (ONU) has occurred in a passive optical 
r network (PON) system. A PON system (10) is provided with a plurality of ONUs (500-502) connected to an optical line 
oe terminal (OLT) (100) via an optical divider (300), wherein data is transmitted to the OLT (100) by time-division multi
plexing. The ONU (500) comprises an emergency notification detection unit (540) for detecting an emergency notification
W O 2018/225414 A8/225414Al||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 
DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, 
HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, 
KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, 
MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, 
NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, 
QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, 
SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, 
UG, US, UZ, VC, VN, ZA, ZM, ZW.  
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*hTPAb): ARIPO (BW, GH, GM, KE, LR, LS, 
MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, 
ZW), J-:5- 7 (AM, AZ, BY, KG, KZ, RU, TJ, 
TM), -:9 'Y / (AL, AT, BE, BG, CH, CY, CZ, 
DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, 
LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, 
SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, 
GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).  
request from a telephone terminal (900), and an emergency dispatching control unit (550) for outputting a disconnection 
request between the ONUs (501, 502) and the OLT (100) to the optical divider (300) if the connection of the ONU (500) 
to the OLT (100) is not established when the emergency notification request is detected. The optical divider (300) com
prises an optical line control unit (330) for disconnecting the ONUs (501, 502) and the OLT (100) in accordance with 
the disconnection request.  
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