ZTE's first LTE commercial Network construction review

ZTE successfully overcame the complexity of the wireless environment in Hong Kong, the difficulty of obtaining the site, the approval process of construction permits and other difficulties, only 12 months to complete the construction of more than 2,200 base stations, opening and optimization, creating the Hong Kong Mobile communication network The fastest pace of construction record. As the first and largest mobile operator in Hong Kong, CSL was established in 1983 as a holding subsidiary of the Australian telecom Telstra.　　CSL through 1o1o, One2free and New World transmission network and other brands, for different customers to provide a wide range of Cross-border Multimedia communications services, the Hong Kong mobile communications Market is a well-deserved leader. CSL original 4 network, respectively, a GSM900, two GSM1800 and a UMTS2100, the direct result of the multi-standard network is unable to achieve smooth upgrade and expansion, equipment, repetitive input and network of high complexity, not only increased the burden of operation and maintenance,　　And it seriously affects the expansion and development of csl2g and 3G networks. In the face of fierce competition in the telecommunications industry in Hong Kong and the threat of emerging 3G operators, the consolidation pressure of CSL network is increasing.　　At the same time, in order to maintain the leading position in the Hong Kong market, CSL urgently needs to optimize the network structure, reduce operating costs, integrate 4 network advantages, so as to provide users with integrated, high-speed, personalized services.　　CSL stands at the crossroads of unprecedented network integration. Facing the three challenges of the project at present, Telstra has invested heavily in the HSPA NEXTG network covering Australia, and CSL has invested heavily in the effort to deliver a 21Mbps peak download rate through the deployment of more than 2,200 HSPA Web sites throughout Hong Kong,　　Build its NEXTG brand network into one of the world's most advanced next-generation communications networks.　　February 2008, after repeated in-depth technical exchanges and field visits, CSL in a comprehensive comparison of the manufacturers of solutions, the final choice of ZTE to implement the "Singlenetwork" full turnkey project. Before the construction of the network, the problems in front of CSL and ZTE mainly focus on three aspects, first of all, there are more environmental restrictions. Hong Kong is a famous international metropolis, with a typical high-rise, hilly, water, Linhai complex geographical environment. At the same time, the population density is very high and there are 6.925 million people on 1092km2 land. Secondly, a wide range of site types, network complex. The project is a unified replacement of the 2G/3G on the existing network, not only need to replace the current site, but also the new station need to land; Finally, time is the biggest challenge.　　CSL requires completion of thousands of turnkey construction in less than 1 years, but the fastest record of the project in the same scale of business is 2 years. Together to create a customized network of high quality and rapid delivery to face the severe test, ZTE integrated its rich project experience in the world, and CSL to develop a "three-step" project, from the replacement, new to the core network to upgrade comprehensively, to protect the CSL networkConstruction progress. On the premise of tight time and heavy task, ZTE uses global resources to quickly form a strong team, has invested nearly 1500 technical experts and engineers, as well as nearly 1000 cooperating units from 15 countries, and employs dozens of senior project management experts from around the world.　　For CSL to build the world's leading high-quality broadband mobile network. ZTE High quality, fast, end-to-end delivery capacity, so that CSL "Singlenetwork" project performance achieved a success: March 2008 after the start of the network construction, September that is the successful completion of the core network and service platform connection, October completed 70% of the work. It is noteworthy that, from October 2008 to March 30, 2009, the dual-network coexistence period. March 30, 2009, ZTE Hspa+64qam (orthogonal amplitude control) test to achieve rapid deployment, only through software upgrades to support HSPA.　　March 2009, ZTE delivered more than 2,200 stations and delivered ahead of schedule. In order to make the current network users smooth transition to the new network, ZTE for CSL tailored network cutting and user migration program, and strive to achieve network soft cut, business 0 interruption, service new experience.　　In order to achieve this goal, CSL and ZTE after a long period of program demonstration and detailed testing, carried out thousands of items of testing, to ensure that cutting solutions accurate and effective, to achieve "soft cut, 0 risk" goal. After careful and comprehensive preparation, the user migration was fully launched in April 2009. April 11, the first batch of 30,000 users successfully cut, April 24, the completion of all prepaid expenses of households, some of the paid users and group users cut, and achieved a phased victory cut. May 23, 2009, the last batch of users also successfully cut to the new network, so far, CSL40 3G users all cut to the SDR based technology NEXTG Network, fully experienced CSL offers a new service. Cslcto Christian is very satisfied with the success of the cut, and also appreciated the partners, "CSL in the Hong Kong mobile communications industry has a long history, online terminal types are also many, this to network cutting and user migration has brought more trouble." ZTE's cutting solution is ideal for CSL, which allows almost every CSL customer to switch to new Web services unconsciously!　　"A breakthrough in the history of a variety of innovations and ZTE successfully overcome the complex wireless environment in Hong Kong, site access difficulties, construction license approval process for a long time and other difficulties, only 12 months to complete the construction of more than 2,200 base stations, opening and optimization, thereby creating the Hong Kong mobile Communication network construction speed of the fastest record. Using the next generation mobile network based on ZTE's SDR base station, CSL not only solves the problems of multiple network coexistence, maintenance difficulty, complicated management and repeated investment, but also greatly improves the network performance, the whole network coverage quality is better than the 900MGSM network: The original network is only 18Mbps HSDPA peak throughput increased to the average 4.5Mbps above the total network, the peak rate 6mbps~9mbps above (according to the mobile terminal capabilities); Hsupa Outdoor total net average rate 1Mbps, indoor average rate 3Mbps, peak 5Mbps above; HSPA　　(64QAM) The peak rate is up to 18Mbps. This is mainly due to ZTE's innovative application of multiple RRU Community integration technology, successfully solved the complex environment and large building indoor signal coverage and indoor and outdoor collaborative coverage, so that the whole network coverage quality and the original network compared to have been greatly improved, up to 5dbm~6dbm above.　　Based on such a good user experience, CSL has put forward the slogan "Tomorrow's Technology Today (Tomorrow ' Stechnology>>>today)" for commercial promotion. While CSL achieves such good network performance, it also saves a lot of opex for the smart choice of SDR solutions.　　Prior to the implementation of the project CSL's opex for 225.4 million Hong Kong dollars/year, the adoption of the SDR solution, CSL Opex for 86.9 million HKD/year, opex total savings of 138.5 million Hong Kong dollars/year. In order to further establish CSL's leading position in Hong Kong's mobile communications market, let the network have the fastest speed, the highest capacity and the best quality, and continuously exceed customer expectations, CSL decided to deploy the LTE network for the first time and strive to be the fastest mobile operator in the world. Based on the outstanding performance of ZTE, CSL has continued to carry out LTE construction. Distance between the two sides built HSPA network only half a year, CSL again out of the punch, September together with ZTE jointly held a presentation of the LTE business, to the global industry and the public demonstrated the downlink rate of up to 100Mbps LTE business, and this year began the LTE commercial construction,　　In the industry took the lead in the evolution of the LTE era prologue. Users must be high-rise, densely populated, wireless environment is extremely complex. Rebuilding an integrated 2g/3g network is a challenging task. Congratulations on ZTE's outstanding performance in QAM64 test and believe that cooperation with ZTE will help CSL/NWM stay ahead of the competition and provide quality services to our 2.5 million users.