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GPON-Fundamentals_Huawei.pdf
1.
www.huawei.com www.huawei.com HUAWEI TECHNOLOGIES Co.,
Ltd. Huawei Confidential Security Level: OBA000100 GPON Fundamentals
2.
Page2 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 2 References ITU-T 984.1 ITU-T 984.2 ITU-T 984.3 ITU-T 984.4
3.
Page3 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 3 Objectives Upon completion of this course, you will be able to: Describe GPON Network Architecture Outline GPON Basic Concepts Outline GPON Applications
4.
Page4 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 4 Contents 1. Overview of Optical Access Network 2. Basic Concepts of PON 3. GPON Frame Structure 4. GPON Key Technologies 5. GPON Management and Service Provisioning 6. Basic Services over GPON Network
5.
Page5 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 5 Contents 1. Overview of Optical Access Network 2. Basic Concepts of PON 3. GPON Frame Structure 4. GPON Key Technologies 5. GPON Management and Service Provisioning 6. Basic Services over GPON Network
6.
Page6 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 6 CO Curb Customer Premise BA FTTC FTTB OLT OLT Architecture of Optical Access Network DSLAM 250-700m Urban Coverage 3.5-5km Remote Business xDSL 2~20Mbps OLT FTTH ODN MDU ONT ONU Optical Line Termination Optical Networks Termination Optical Networks Unit Multi-Dwelling Unit 2.5Gbps Down /1.25Gbps Up 2.5Gbps Down /1.25Gbps Up 2.5Gbps Down /1.25Gbps Up
7.
Page7 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 7 From the architecture diagram, the optical access network comprises the following scenarios: 1. FTTB scenario SBU : Single business unit ; providing a comparatively small number of ports such as 10/100/1000BASE-T, RF, and DS1/T1/E1 ports MTU :Business Multi-tenant unit ; providing a comparatively larger number of ports, including 10/100/1000BASE-T, RF and DS1/T1/E1 ports., VDSL2, and so on. 2. FTTC FTTCab scenario MDU : Multi-dwelling unit ;providing a comparatively larger number of ports, including 10/100/1000BASE-T, RF, VDSL2, and so on. 3. FTTH scenario SFU : Single family unit , providing a comparatively small number of ports, including following types: POTS, 10/100/1000BASE-T, and RF. What is Optical Access Network?
8.
Page8 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 8 Contents 1. Overview of Optical Access Network 2. Basic Concepts of PON 3. GPON Frame Structure 4. GPON Key Technologies 5. GPON Management and Service Provisioning 6. Basic Services over GPON Network
9.
Page9 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 9 What is PON? Passive Optical Network OLT ONU Optical Line Terminal Optical Network Unit Passive Optical Splitter PSTN Internet IPTV ONU ONU PON is a kind of passive optical network featuring one-to-multiple-point architecture; PON is short for Passive Optical Network ; PON consists of Optical Line Terminal (OLT), Optical Network Unit (ONU) and Optical Distribution Network(ODN). Passive Optical Splitter
10.
Page10 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 10 Why GPON? GPON( ( ( (Gigabit-capable Passive Optical Networks) ) ) ) GPON supports : Triple-play service high-bandwidth long-reach (up to 20 km) GPON is the choice of large carriers in the international market. 1Mbps 3M 8M 25M 2.5G ADSL/ADSL2+ Copper Based VDSL / ADSL2+ Copper Based PON Fiber Based 2002 2003 2006 2010 Time Internet Video conferencing Remote control Access Technology Service requirements VoD HDTV Game Live TV VoD HDTV 3km 2km 1km ~20km Coverage diameter
11.
Page11 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 11 GPON Principle----Data Multiplexing GPON adopts Wavelength Division Multiplexing (WDM) technology, facilitating bi-direction communication over a single fiber. To separate upstream/downstream signals of multiple users over a single fiber, GPON adopts two multiplexing mechanisms: In downstream direction, data packets are transmitted in a broadcast manner; In upstream direction, data packets are transmitted in a TDMA manner. 1490nm 1310nm
12.
Page12 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 12 GPON Principle----Downstream Data Broadcast mode
13.
Page13 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 13 GPON Principle----Upstream Data TDMA mode
14.
Page14 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 14 ITU-T G.984.3 • Specifications of TC layer in the GPON system • GTC multiplexing architecture and protocol stack • GTC frame • ONU registration and activation • DBA specifications • Alarms and performance ITU-T G-984.1/2/3/4 Simple development process Powerful compatibility ITU-T G.984.1 • Parameter description of GPON network • Requirements of protection switch-over networking GPON Standards GPON Standards ITU-T G.984.4 • OMCI message format • OMCI device management frame • OMCI working principle ITU-T G.984.2 • Specifications of ODN parameters • Specifications of 2.488Gbps downstream optical port • Specifications of 1.244Gbps upstream optical port • Overhead allocation at physical layer
15.
Page15 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 15 Basic Performance Parameters 2.48832 2.48832 2.48832 1.24416 2.48832 0.62208 2.48832 0.15552 1.24416 1.24416 1.24416 0.62208 1.24416 0.15552 Downstream Rate(Gbps) Upstream Rate(Gbps) 1.24416 Gbit/s up, 2.48832 Gbit/s down is the mainstream speed combination supported at current time.
16.
Page16 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 16 Basic Performance Parameters 1:64/up to1:128 Split ratio 20 km Maximum differential fibre distance 20 km Maximum physical reach 60 km Maximum logical reach The distance between nearest and farthest ONTs
17.
Page17 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 17 Contents 1. Overview of Optical Access Network 2. Basic Concepts of PON 3. GPON Frame Structure 4. GPON Key Technologies 5. GPON Management and Service Provisioning 6. Basic Services over GPON Network
18.
Page18 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 18 GPON Network Model Reference GPON Network Model Reference WDM ONU/ONT NE WDM OLT NE Service node Optical splitter T reference point V reference point R/S S/R ODN UNI SNI IFpon IFpon ONU Optical Network Unit ONT Optical Network Terminal ODN Optical Distribution Network OLT Optical Line Terminal WDM Wavelength Division Multiplex Module NE Network Element SNI Service Node Interface UNI User Network Interface
19.
Page19 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 19 GPON Multiplexing Architecture GPON Multiplexing Architecture IFpon O N U O N U O N U T-CONT Port T-CONT Port Port T-CONT T-CONT Port Port Port Port Port ONU-ID identifies ONUs Alloc-IDs identifies T- CONTs Port-ID identifies GEM ports GEM Port: the minimum unit for carrying services. T-CONT: Transmission Containers is a kind of buffer that carries services. It is mainly used to transmit upstream data units. T-CONT is introduced to realize the dynamic bandwidth assignment of the upstream bandwidth, so as to enhance the utilization of the line. IF pon: GPON interface. Based on the mapping scheme, service traffic is carried to different GEM ports and then to different T-CONTs. The mapping between the GEM port and the T-CONT is flexible. A GEM port can correspond to a T-CONT; or multiple GEM Ports can correspond to the same T- CONT. A GPON interface of an ONU contains one or multiple T-CONTs.
20.
Page20 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 20 GPON Multiplexing Architecture OLT ONT T-CONT T-CONT GEM Port GEM Port
21.
Page21 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 21 Physical Control Block Downstream (PCBd) Payload AllocID Start End AllocID Start End 1 100 200 2 300 500 T-CONT1 (ONT 1) T-CONT 2 (ONT 2) Slot 100 Slot 200 Slot 300 Slot 500 PLOu PLOAMu PLSu DBRu X Payload x DBRu Y Payload y Upstream Bandwidth Map 125us Downstream Framing Upstream Framing GPON Frame Structure GPON Frame Structure OLT ONT 1 ONT 64
22.
Page22 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 22 PLOu PLOAMu PLSu DBRu x Payload x DBRu y Payload y PLOu DBRu z Payload z Preamble A bytes Delimiter B bytes BIP 1 bytes ONU-ID 1 bytes Ind 1 bytes ONU ID Msg ID 1 bytes Message 10 bytes CRC 1 bytes DBA 1,2,4bytes CRC 1byte DBA Report Pad if needed GEM header Frame fragment GEM header Full frame GEM header Frame fragment PLI Port ID PTI HEC ONT A ONT B Upstream Framing GPON Upstream Frame Structure GPON Upstream Frame Structure
23.
Page23 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 23 PCBd n Payload n PCBd n + 1 Payload n Psync 4 bytes Ident 4 bytes PLOAM 13 bytes BIP 1 bytes Plend 4 bytes Plend 4 bytes US BW Map N*8 bytes FEC Ind 1 bit Reserved 1 bit Super-frame Counter 30 bits Blen BW Map Length 12 bits Alen ATM Partition Length 12 bits CRC 8 bits Access 1 8 bytes Access 2 8 bytes ….. Access n 8 bytes Alloc ID 12 bits Flags 12 bits SStart 2 bytes SStop 2 bytes CRC 1 byte Send PLS 1 bit Send PLOAMn 1 bit Use FEC 1 bit Send DBRu 2 bits Reserved 7 bits 125us Coverage of this BIP Coverage of next BIP Downstream Framing GPON Downstream Frame Structure GPON Downstream Frame Structure
24.
Page24 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 24 TDM TDM data Payload TDM fragment HEC PTI Port ID PLI GEM Frame Ingress buffer TDM Buffer Mapping of TDM Service in GPON Mapping of TDM Service in GPON TDM frames are buffered and queued as they arrive, then TDM data is multiplexed in to fixed-length GEM frames for transmission. This scheme does not vary TDM services but transmit TDM services transparently. Featuring fixed length, GEM frames benefits the transmission of TDM services .
25.
Page25 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 25 GEM Payload CRC PTI Port ID PLI GEM Frame Ethernet Packet DA SFD Preamble Inter packet gap SA LengthType MAC client data FEC EOF 5 bytes Mapping of Ethernet Service in GPON Mapping of Ethernet Service in GPON GPON system resolves Ethernet frames and then directly maps the data of frames into the GEM Payload. GEM frames automatically encapsulate header information. Mapping format is clear and it is easy for devices to support this mapping. It also boasts good compatibility.
26.
Page26 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 26 Contents 1. Overview of Optical Access Network 2. Basic Concepts of PON 3. GPON Frame Structure 4. GPON Key Technologies 5. GPON Management and Service Provisioning 6. Basic Services over GPON Network
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Page27 Copyright © 2006
Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 27 GPON Key Technologies- Ranging DBA T-CONT AES Attenuation
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 28 Ranging OLT obtains the Round Trip Delay (RTD) through ranging process, then specifies suitable Equalization Delay (EqD) so as to avoid occurrence of collision on optical splitters. To acquire the serial number and ranging, OLT needs open a window, that is, Quiet Zone, and pauses upstream transmitting channels on other ONUs. ONU3 ONU2 ONU1 OLT
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 29 DBA What is DBA? DBA, Dynamic Bandwidth Assignment Why DBA? It enhances the uplink bandwidth utilization of PON ports. More users can be added on a PON port. Users can enjoy higher-bandwidth services, especially those requiring comparatively greater change in terms of the bandwidth. DBA operation modes SR-DBA: status report-DBA NSR-DBA: non status report-DBA
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 30 SR-DBA Operation DBA block in the OLT constantly collects information from DBA reports, and sends the algorithm result in the form of BW Map to ONUs . Based on the BW Map, each ONU sends upstream burst data on time slots specified to themselves and utilizes the upstream bandwidth. DBA algorithm logic DBA report BW Map Time slot T-CONT T-CONT T-CONT Scheduler ONU OLT Control platform Data platform
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 31 SR-DBA Operation Payload US BW Map Data Report PCBd D/S Direction U/S Direction OLT ONT ① ① ① ① ② ② ② ② ③ ③ ③ ③ ④ ④ ④ ④ Based on the algorithm result of last time, OLT delivers BW Maps in the header of downstream frames. Based on the bandwidth allocation information, ONU sends the status report of data currently waiting in T-CONTs in the specified time slots. OLT receives the status report from the ONU, updates BW Map through DBA algorithm and then delivers the new BW Map in the next frame. ONU receives the BW Map from the OLT and sends data in the specified time slots.
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 32 NSR-DBA Operation NSR-DBA NSR is an algorithm scheme that realizes DBA. It helps to predict the bandwidth allocated to each ONU based on the traffic from ONUs. Procedure: Step1: Monitor the number of data packets received by OLT within the specified interval. Step2: Use the result of real time monitoring in step 1 to calculate the utilization rate. Step3: Recognize the congestion status by comparing the utilization rate with the specified limits.
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 33 DBA Working Principle Based on service priorities, the system sets SLA for each ONU, restricting service bandwidth. The maximum bandwidth and the minimum bandwidth pose limits to the bandwidth of each ONU, ensuring various bandwidth for services of different priorities. In general, voice service enjoys the highest, then video service and data service the lowest in terms of service priority. OLT grants bandwidth based on services, SLA and the actual condition of the ONU. Services of higher priority enjoy higher bandwidth.
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 34 T-CONT Bandwidth Terms Transmission Containers (T-CONTs): it dynamically receives grants delivered by OLT. T-CONTs are used for the management of upstream bandwidth allocation in the PON section of the Transmission Convergence layer. T-CONTs are primarily used to improve the upstream bandwidth use on the PON. T-CONT BW type falls into FB, AB, NAB, and BE. Five T-CONT types: Type1, Type2, Type3, Type4, and Type5.
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 35 T-CONT Type and Bandwidth Type Type1 T-CONT is of the fixed bandwidth type and mainly used for services sensitive to delay and services of higher priorities, such as voice services. Type2 and type3 T-CONT is of the guaranteed bandwidth type and mainly used for video services and data services of higher priorities. Type4 is of the best-effort type and mainly used for data services (such as Internet and email), and services of lower priorities. These services do not require high bandwidth. Type5 is of the mixed T-CONT type, involving all bandwidth types and bearing all services.
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 36 QoS Mechanism of ONU in GPON GPON VOIP VOD DATA TDM Traffic-flow Scheduling And buffer control Service differentia based on 802.1p GPON VOIP VOD TDM Traffic-flow Scheduling And buffer control Service differentia based on 802.1p OLT Splitter Service traffic based on GEM Port-id Traffic classification of services based on LAN/802.1p. Service scheduling based on the combination of strict priority (SP) and Weighted Round Robin (WRR) algorithms. Service transmission based on service mapping with different T-CONTs, enhancing line utilization and reliability.
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 37 QoS Mechanism of OLT in GPON VOIP BTV DATA TDM GPON GPON GE/10GE Upstream service traffic based on different VLANs Ethernet bridging Non- blocking switching 802.1p COS Queuing scheduling DBA TDM Gateway PSTN BSR OLT Traffic classification based on VLAN/802.1p. Service scheduling based on combination of strict priority (SP) and Weighted Round Robin (WRR) algorithms. DBA algorithm, enhancing uplink bandwidth utilization. Access control list (ACL)-based access control on layers above layer-2.
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 38 AES Encryption in GPON End User 1 End User End User 1 1 End User 3 End User End User 3 3 ONT End User 2 End User End User 2 2 3 3 3 3 1 1 3 3 3 3 2 2 1 1 1 1 1 1 1 1 2 2 ONT ONT 1 1 3 3 3 3 2 2 1 1 1 1 1 1 3 3 3 3 2 2 1 1 1 1 OLT Encryption Decryption Decryption Decryption 1 1 1 1 3 3 3 3 2 2 1 1 1 1 OLT applies Advanced Encryption Standard (AES) 128 encryption. GPON supports encrypted transmission in downstream direction, such as AES128 encryption. In the case of GEM fragments, only the payload will be encrypted. GPON system initiates AES key exchange and switch-over periodically, improving the reliability of the line. AES: Advanced Encrypt Standard A globally-used encryption algorithm
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 39 Fibre Attenuation and Power Budget Fibre attenuation relates to the fibre length The attenuation of fibre splicing point is generally less than 0.2dB Other factors may cause attenuation, such as fibre bending About 0.35 dB per km for 1310,1490nm 30 dB 15 dB Class C NOTE – The requirements of a particular class may be more stringent for one system type than for another, e.g. the class C attenuation range is inherently more stringent for TCM systems due to the use of a 1:2 splitter/combiner at each side of the ODN, each having a loss of about 3 dB. 28 dB 25 dB 20 dB Maximum loss 13 dB 10 dB 5 dB Minimum loss Class B+ + + + Class B Class A Table G.984.2 – Classes for optical path loss Huawei’s OLT and ONU 28 dB (Class B+)
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 40 -8 dBm Minimum overload -27 dBm Minimum sensitivity +5 dBm Mean launched power MAX 0.5 dBm Mean launched power MIN ONU ONU: -8 dBm Minimum overload -28 dBm Minimum sensitivity +5 dBm Mean launched power MAX +1.5 dBm Mean launched power MIN OLT OLT: Single fibre Unit Items Parameters of GPON (Class B+)
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 41 Contents 1. Overview of Optical Access Network 2. Basic Concepts of PON 3. GPON Frame Structure 4. GPON Key Technologies 5. GPON Management and Service Provisioning 6. Basic Services over GPON Network
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 42 Control and Management Plane M u l t i p l e x i n g b a s e d o n f r a m e l o c a t i o n P L O A M p a r t i t i o n A T M p a r t i t i o n G E M p a r t i t i o n F r a m e h e a d e r A l l o c - I D f i l t e r A l l o c -I D f i l t e r E m b e d d e d O A M A T M T C a d a p t e r G E M T C a d a p t e r V P I / V C I f i l t e r P o r t - I D f i l t e r O M C I a d a p t e r O M C I P L O A M G T C F r a m i n g s u b - l a y e r T C A d a p t a t i o n s u b - l a y e r - B W G r a n t i n g - K e y S w i t c h i n g - D B A
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 43 GPON Management OAM message at the physical layer falls into three types: embedded OAM, PLOAM and OMCI . The embedded OAM and PLOAM channels manage the functions of the PMD and the GTC layers. The OMCI provides a uniform system of managing higher (service defining) layers. The embedded OAM channel is provided by field-formatted information (such as BW Map,DBRu) in the header of the GTC frame. The functions that use this channel include: bandwidth granting, Dynamic Bandwidth Assignment signalling and so on. The OMCI channel is used to manage the service defining layers that lay above the GTC.
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 44 GPON Service Provisioning Carriers’ nightmare Application scenario Service Provisioning NMS 2000 Access Network Billing 1 Subscribe for services 2 Configure service network 3 Order Management Start up ONT and make registration with serial number ONT ONT ONT ONT CRM User Send terminals to users 1 2 Finish the auto-configuration of OLT Initial configurations (such as service system information configuration, data configuration) are required on terminals and then they can be put into use. To finish these configurations, it is not cost-effective to carriers. GPON supports zero configuration on terminals and plug-and-play of terminals, which is cost-effective. Flexible Configuration plan of GPON STB 3 Use OMCI to finishing data configuration on ONT
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 45 Contents 1. Basic Concepts of PON 2. Overview of Optical Access Network 3. Analysis of GPON Standards 4. GPON Key Technologies 5. GPON Management and Service Provisioning 6. Basic Services over GPON Network
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 46 BRAS AAA Server IP Core ASP/ISP CPE MSE Ethernet OLT Softswitch Internet VoD Server Middle ware NMS TL1/CORBA /API BB service platform Carrier’s OSS Notification Triple Play Solution in GPON IPTV Phone PC SFU Phone PC SBU CPE MDU VDSL NSP IP Voice CBU E1 FE ODN Splitter Base station
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 47 Questions GPON network architecture? Describe DBA operation mode? Describe GPON service provisioning?
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Huawei Technologies Co., Ltd. All rights reserved. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 48 Summary In this presentation, we introduced GPON basic concept ,architecture ,and principle. We also discussed about GPON service provisioning and application.
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