FTTx access network technology is mainly used for optical fibers, ranging from regional telecommunications infrastructure equipment room to the user terminal equipment, central office equipment for the optical line terminal (Optical Line Terminal; OLT), customer premise equipment for the optical network unit (Optical Network Unit; ONU) or Optical Network terminal (Optical Network Terminal; ONT). Fiber to the user according to the distance to the classification can be divided into fiber-to-switch box (Fiber To The Cabinet; FTTCab), fiber to the curb (Fiber To The Curb; FTTC), fiber to the building (Fiber To The Building; FTTB) and fiber FTTH (Fiber To The Home; FTTH) service, etc. 4 form. U.S. operator Verizon will FTTB and FTTH fiber to the station together (Fiber To The Premise; FTTP). These services may be referred to FTTx.
Cover Story The age of fiber: FTTx heralds the ultra-broadband era The age of fiber FTTx heralds the ultra- IPTV, HDTV, 3D services, and video conferencing are among the applications that epitomize the new ultra- broadband era and demand great things from broadband access networks. FTTx has emerged as a high capacity, wide coverage, and low cost solution that is eco-friendly and can smoothly bear video services. Backed by mature technology, reduced costs, government support, and increasingly open policies, FTTx is the new optimum choice for operators. By Zhou Feng & Liu Zhonglin 9 SEP 2010 . ISSUE 57 Huawei Communicate billion pounds for its fiber-to-the-curb (FTTC) network, with deployment scheduled for 2012. In March 2009, Deutsche Telekom (DT) announced a 3-year investment package totaling 10 billion euros in fiber optics, new mobile communications technologies and IT processes. The German operator is also seeking to increase the number of FTTH users to 4 million by 2012. In the Asia-Pacific region, Japan had already passed 13 million households with FTTH by the end of 2009 to decisively lead the region’s FTTx field. In 2006, Singapore initiated its 700– million-USD iN2015 strategy to construct a nationwide FTTH network during 2010–2012. In the Middle East, the UAE announced that Abu Dhabi is now the world’s first capital to be entirely wired with fiber. As a regional technology leader, Etisalat plans to construct a nationwide FTTH network by 2011. Additionally, nationwide fiber networks are currently – and rapidly – being built in Saudi Arabia, Oman, Qatar, and Kuwait. FTTx network construction in China began in 2007. The big three – China Mobile, China Telecom, and China Unicom – have all initiated massive FTTx deployment schemes, totaling tens of millions of lines. In 2010, China kicked off its ambitious plan to converge telecommunications, broadcasting and the Internet, which is underpinned by a 1 5 0 b i l l i o n R M B ( a b o u t 2 2 billion USD) investment to boost fiber broadband era broadband rollout over three years. Thanks to government support, FTTH construction in China sits confidently poised for large-scale inception. However, FTTx rollout is not a cut and dried exercise in simplicity: Service G lobal Industry Analysts Global trends testify to the above providers require guaranteed fair and predicts that the number of analysis: In the U.S., Verizon is planning open network access, the networks FTTH/B users will reach to extend its FiOS service to 18 million themselves need to be rapidly deployed 183.9 million by 2015, and homes with a GPON-based FTTH to be viable, and CAPEX and OPEX – that this upsurge will be powered by network. In Europe, BT has accelerated as ever – have to be minimized. Etisalat, greater bandwidth demands, the growth its optical network rollout, and has Singapore’s Nucleus Connect and China in bundled services, and the replacement a l re a d y b e g u n d e p l oy i n g F T T H . Mobile provide us with valuable lessons of copper with fiber. The British giant has earmarked 1.5 from their FTTx deployment endeavors. SEP 2010 . ISSUE 57 10 Cover Story The age of fiber: FTTx heralds the ultra-broadband era Etisalat: building a Highly reliable, easy to maintain, and friendly to full-service operations, requirements. Increased single node capacity flagship network GPON is also Etisalat’s preferred requires highly reliable equipment. The choice for the enterprise market; when Huawei OLT adopts active/standby connected to its 3G base stations, an mode for the main control unit, uplink Boasting impressive skyscrapers and access network is created for home, unit, and power supply to provide a plethora of luxury hotels, the UAE is enterprise, and mobile services. 360-degree protection. Thanks to 1+1 a place of miracles. Its rapid economic protection for the interfaces, system development has doubled its population Higher capacity, fewer reliability reaches 99.999%. in just 7 years till 2010, and the region exchanges To ensure rapid network deployment, constantly attracts wealthy globetrotters, Etisalat used Huawei’s test lab to including models, movie stars, artists, Prior to FTTH deployment, Etisalat precisely mirror and simulate the and business executives. used various types of access equipment network environment and perform Inevitably, these factors strain the and required a large number of copper- an extreme capacity test on FTTH region’s telecom services, and pose based central offices, each covering deployment. By the end of 2009, challenges for Etisalat, the Middle a radius of less than 6km. Complex Et i s a l a t h a d d e p l o y e d a n F T T H East’s leading integrated telecom networks are difficult to maintain and network exceeding 1.4 million lines to operator. Etisalat supplies over 32 increase OPEX. Consequently, Etisalat create one of the world’s largest GPON- million customers in 14 countries with prioritized simple network architecture based FTTH networks. mobile, fixed line, Internet, and cable during the FTTH planning stage, TV (CATV) services. To consolidate realizing that it could leverage GPON’s Fast ODN deployment its leading position, the operator wide coverage to build a higher capacity recently quickened its pace in the FTTH network with fewer exchanges. According to its agreement with broadband access field. When it comes Fiber access can extend to 20km, the government, Etisalat will cover to technology choice, both ADSL and a single office can serve tens of Abu Dhabi and 80% of the UAE with and ADSL2+ fail to meet increasing thousands of users. Etisalat’s analysis FTTH by the end of 2010, before bandwidth demands, and VDSL2 culminated in an action plan to realizing 100% national coverage in inefficiently covers remote and scattered replace its copper lines with fiber 2012. Rapid ODN deployment is key residential communities. The UAE through FTTH, and cut 2/3 of its to achieving this goal. already benefits from rich fiber resources legacy central offices. Huawei’s high To deploy the ODN more efficiently, that connect most buildings. Based on capacity convergent OLT can support Etisalat is now using double-layered this, Etisalat turned its eyes to GPON- over 16,000 users with only a single fiber division boxes. Outdoor and based FTTH. subrack, which fully satisfies Etisalat’s indoor engineering is clearly delineated Aiming to offer rich, high-quality broadband services to guests from all over the world, Etisalat and Huawei deployed a SingleFAN FTTx solution that will deliver diverse broadband services, including voice, high-speed Internet access and HD IPTV to Burj Khalifa, the tallest ever man-made structure. 11 SEP 2010 . ISSUE 57 Huawei Communicate by layer to define responsibilities and reduce faulty operations. Etisalat has also introduced a full product series with high-level protection to meet the UAE’s extreme climate. The dustproof outdoor cable transfer box features a protection level of IP65, and operates effectively even at 80°C. The indoor products are also dustproof, and provide enhanced service connection rates. To boost engineering efficiency, Etisalat partnered with Huawei to train 1,000 network deployment staff in under four weeks. The two developed a scientific subcontractor management system, and updated indoor network deployment processes to clarify responsibilities. To respond to different scenarios, such as new or old buildings and buildings with or without ducts, Etisalat flexibly applied Huawei’s solutions to double engineering efficiency. Connecting the world’s highest building On January 4, 2010, Burj Khalifa, the tallest ever man-made structure, was officially opened to the public. The 828m building represents a marvelous achievement in human history, and indicates the government’s decision to diversify its economic portfolio. The building boasts 1,044 luxur y apartments, 49 floors of offices, and a 160-room Armani hotel. Etisalat was tasked with the challenging job of providing communication services for the building. Aiming to offer rich, high-quality broadband services to guests from all over the world, Etisalat and Huawei deployed a SingleFAN FTTx solution that will deliver diverse broadband services, including voice, high-speed Internet access, and HD IPTV. The building’s opening ceremony was framed by a spectacular firework display, which not only marked the grandeur of Burj Khalifa, but also its strong technological positioning that embraces the ultra-broadband era with FTTx. SEP 2010 . ISSUE 57 12 Cover Story The age of fiber: FTTx heralds the ultra-broadband era Nucleus Connect: In April 2009, Nucleus Connect was selected to design, build and operate the and VLAN switching. As a result, VLANs need not be re-planned when connecting an active infrastructure of the Next Gen RSPs are changed. By selecting the NBN. David Storrie, CEO of Nucleus OLT that supports hierarchical QoS, “intelligent nation” Connect, believes that ensuring fair the operator can deliver differentiated and open access for RSPs and reducing service offerings. Singapore launched the Intelligent CAPEX are among the key factors to Nation 2015 (iN2015) master plan in success. How did Nucleus Connect Lower CAPEX and faster 2006, with the aim of exploiting the achieve these technically? deployment true potential of ICT over the next decade. With government support, the Fair and open access According to the government’s master plan seeks to deploy and upgrade p l a n , t h e F T T H n e t w o rk w i l l b e the nation’s fixed and mobile networks, Traditionally, operators deploy commercialized by the third quarter of and deliver broadband access to over networks and provide services, while all 2010 and then cover 95% of the nation 90% of households. the network resources – including the by June 2012. Nucleus Connect had a The Next Generation Nationwide VLAN, MAC, and multicast addresses – tight schedule for network deployment. Broadband Network (Next Gen NBN) are internally assigned by operators. An FT TH network with large- is the fixed part under the iN2015 Un d e r o p e n a c c e s s , i t i s t h e capacity offices and fewer network nodes master plan. The Next Gen NBN boasts Operating Company (OpCo) who would help to simplify O&M, while a nationwide, open FTTH network that uniformly plans network resources for reducing costs on equipment room provides 100Mbps access and 1Gbps RSPs. Given that RSPs frequently join rental and O&M. Nucleus Connect and beyond for residential users and and leave the network, the OpCo has to decided to use high capacity OLTs to enterprise users. constantly reallocate network resources. reduced CAPEX. As a crucial component of iN2015, The OpCo also needs to implement Partnering Huawei, Nucleus Connect the network will carry existing and hierarchical QoS to ensure fair access planned and deployed a nationwide future data and communication services, and bandwidth usage. As a result, broadband network with an end-to-end including voice, IPTV, VOD, high network traffic can be controlled based solution, including the Metro router, speed Internet access, leased line service on user, service and RSP. OLT, and Ethernet switch. for enterprises, and mobile broadband Nucleus Connect selected a solution Nucleus Connect also built an services. that realizes flexible flow classification integrated network management system 13 SEP 2010 . ISSUE 57 Huawei Communicate Following 16-month preparation, on Aug 31st of 2010, Nucleus Connect officially announced that it has commenced commercial operations to power infinite possibilities onboard Singapore’s Next Gen NBN. As its CEO David Storrie comments, “Today marks a historical moment not only for Nucleus Connect but also for Singapore’s infocomm future as we transform Singapore into a global city, an intelligent nation.” (NMS) for network operation and After acquiring fixed-line assets and a To effectively explore the enterprise service provisioning. The NMS provides 3G license, China Mobile has been busy market, China Mobile Zhejiang and adequate northbound interfaces that converging its fixed and mobile services Huawei have innovated a new service can rapidly connect with the third- in readiness for full service operations. portfolio, three examples of which are party OSS/BSS. Moreover, the NMS To cultivate a leading position in this listed below: supports unified management of data, ne w business area, China Mobile Convergent private branch exchange transmission, and access devices to Zhejiang needs to transform itself and (PBX): A virtual PBX supports various achieve visualized service provisioning address a range of challenges. terminals and provides the following and E2E service configuration. As a Despite being a mobile leader, China services: uniform phone number, voice result, the service provisioning efficiency Mobile Zhejiang has yet to develop portal, corporate phone directory, short- has been improved. a fixed network. Doing so requires number dialing, voice PBX, call center Following 16-month preparation, a highly experienced partner, which service, corporate management, and on August 31st of 2010, Nucleus prompted the operator to join hand contact member management. Connect officially announced that it with Huawei. Utilizing Huawei’s strong Enterprise communication assistant: has commenced commercial operations R&D and E2E network capabilities, Includes VoIP, conference calling, to power infinite possibilities onboard China Mobile Zhejiang has successfully and data sharing. This service boosts Singapore’s Next Gen NBN. As its planned and deployed its cutting-edge conferencing efficiency and reduces toll CEO David Storrie comments, “Today network and OSS through which it call fees. marks a historical moment not only provides high-grade services. Convergent virtual private network for Nucleus Connect but also for (VPN): Enables fixed telephony, soft Singapore’s infocomm future as we Focusing on enterprise users terminals, handset-sharing for the same transform Singapore into a global city, number, and automatic call-switching. an intelligent nation.” Accounting for 85% of the customer These functions combine to ensures that base of its virtual private mobile network all incoming calls are answered quickly. (VPMN), government and enterprise By studying domestic and China Mobile Zhejiang: users form a huge potential market for fixed services offered by China Mobile international experiences and its own network and market positioning, China full-service access Zhejiang. Through FMC, China Mobile Mobile Zhejiang selected IMS and Zhejiang can sharpen its competitive GPON to build its full-service access made easy edge among high-end customers. network. SEP 2010 . ISSUE 57 14 The age of fiber: FTTx heralds the ultra-broadband era Flexible FTTx access solution ICT solutions thanks to its built-in lower the skill requirements, and router, firewall, anti-virus software, and eliminate the need for intensive training, Construction, however, still created IP PBX. The OT928, which provides thus reducing costs and complexity. many problems. Firstly, China Mobile broadband and E1 private lines, is Based on the actual circumstances Zhejiang realized that it had to meet designed for large enterprises with LANs surrounding its live network, China varied market demands, with a GPON and PBX. Mobile Zhejiang deployed centralized that provides access for different The Huawei FT Tx solution network management across the customer groups. For example, large incorporates several QoS mechanisms province. As a result, the NMS helps enterprises prefer legacy fixed phone and provides a configurable service pre-deploy network elements, and numbers and a PBX. Trade-oriented priority for MANs to ensure E2E QoS. realize the automatic commissioning small SMEs favor a one-stop ICT The ONU supports VLAN translation and acceptance of ONUs en masse. solution, while small and medium and QoS remarks and, once applied Engineers only need to visit the site manufacturers require just voice and as the enterprise gateway, can help once for installation tasks, after which broadband access. China Mobile Zhejiang realize uniform they can commission and accept Secondly, the GPON should provide network planning and management. site equipment through the NMS. hierarchical QoS and flexible access for The Huawei convergent OLT directly As ONUs can be plug-and-play, the various services, including broadband connects to the MAN and MSTP deployment workload was lowered and private line, E1 private line, VPN, voice, to reduce the number of convergent work efficiency was enhanced. and communication assistant. Thirdly, devices. By the end of 2009, China Mobile many enterprises have internal networks Zhejiang had successfully deployed with planned VLANs and class of Centralized network over 250,000 FTTx lines and attracted service (CoS). As a result, ONUs are management nearly 40,000 subscribers. By building needed to simplify and unify network a full-service access network with IMS access. ONU management and ser vice and GPON, China Mobile Zhejiang China Mobile Zhejiang selected provisioning differ in full-ser vice has entered the enterprise market Huawei based on the latter’s flexible and mobile networks. China with differentiated services, and has and customizable GPON and FTTx Mobile Zhejiang faced the issue that successfully transformed itself into a solutions, complete ONU product maintenance personnel would have full-service operator. series, rich services and functions, and to rapidly learn new technical skills to superior access scenarios. For example, realize successful service provisioning Editor: Liu Zhonglin email@example.com the MA561x series suits SMEs with and smooth network maintenance. As its high density voice and broadband most maintenance personnel still need The electronic version and subscription information are access capabilities. The SRG also meets to improve their skills in fixed networks, available at www.huawei.com/communicate. Questions and suggestions may be directed to the editor concerned. the demands of SMEs for one-stop the operator opted to simplify O&M, By the end of 2009, China Mobile Zhejiang had successfully deployed over 250,000 FTTx lines and attracted nearly 40,000 subscribers. By building an access network with IMS and GPON, China Mobile Zhejiang has successfully transformed itself into a full-service operator. 15 SEP 2010 . ISSUE 57 Huawei Communicate Huawei test lab for E2E FTTx solutions By Wu Rui FTTx is not merely a simple layer server, router, convergence switch, combination of network elements like PON device and terminal. A mirrored optical line terminal (OLT), optical network can be established and test cases distribution network (ODN) and can be run on the network, verifying optical network unit (ONU), but feasibility on the live network. requires E2E planning, design and The lab has a mirrored network solution-based testing. environment and high fidelity network Huawei has been constantly simulation for global operators expanding its product series, while including British Telecom, Deutsche building a state-of-the-art test lab to Telekom, France Telecom and Etisalat. support E2E FTTx solutions testing. The mirrored network or simulation is T h e l a b h e l p s Hu a w e i t o b e t t e r updated according to the network of understand customers, provide better operators, providing timely backup for services and meet the increasing demand network upgrades, troubleshooting and for large-scale FTTx deployment. introducing new features. User experience-based Large-capacity limit test testing Etisalat first deployed FTTH in 2006 FTTx requirements for the next three Technically speaking, communication and is now one of the largest GPON- years. devices are generally verified through based FTTH networks in the world. black-box testing on an individual Presently, China, Japan, and South basis or through code-based white- Korea are also actively expanding their A professional test team box testing. In FTTx networks, new FTTH deployments. applications constantly emerge and the Although the PON OLT features In addition to strong hardware requirements are higher for E2E FTTx large capacity and high density, a live capability for full-service testing, the solution testing. For this scenario, the network can be more complex than lab is staffed with a professional test Huawei test lab focuses on the quality of originally anticipated. For example, team utilizing advanced techniques an E2E FTTx solution, while enhancing abnormal packets, simultaneous user to understand and fulfill customer user experience. online/offline, network upgrades, service requirements. This highly experienced Fo r H D v i d e o s e r v i c e , b e s i d e s provisioning and data synchronization team of engineers continuously develops other KPIs, factors like image quality can severely impact OLTs under heavy automation and simulation technologies and channel switching times are also traffic. The OLT should be carrier-class, geared to help operators enhance user important for a good user experience. In and its capability needs to be verified in experience. the FTTx deployment, user experience an advanced simulation environment In the lab, a large number of devices is related to the actual cabling, and through limit tests. and testing instruments run 24/7, site surveys, feedback, and service In a large-capacity FT Tx limit and the automated tests greatly boost provisioning. During simulation testing, test, the lab can provide 4,000 efficiency. By collecting, analyzing, and exceptions are recorded to improve the optical network units and more than abstracting traffic data, the lab simulates solution. 500 MxUs. Reinforced by software the traffic at different time periods and The test lab for the E2E FT Tx simulation, the lab can simulate the automatically adjusts the traffic volume. solution is fully equipped with a traffic on OLTs at full capacity and then All test cases can be implemented in a network management system, upper- offer a solution to take care of operators’ high fidelity simulation environment. SEP 2010 . ISSUE 57 16
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