Telecom Italia is the seventh largest operator in the world and is famous for its innovation. It plays a dominant role in its domestic market, and operates in numerous European and Latin American regions including Germany, France, Holland, Brazil, Argentina, Bolivia and Cuba. Having already secured nearly 30 million fixed and 60 million mobile subscribers, the company is seeking to expand its activities by investing EUR14 billion between 2006 and 2008.
The constant development of the mobile communications industry has necessitated continual base station adjustment in Telecom Italia's existing network. Essential upgrades for HSPA and IP radio access networks (RAN) increase costs and endanger network performance. Telecom Italia expects to strengthen its position by providing a new network while decreasing capital expenditure (CAPEX) to meet the fast growing requirements for 3G network capacity and the demand for the rapid inception of new services. Huawei's next-generation Node B solution and its associated business model are designed to save millions of euros in network adjustment areas, and as such attracted Telecom Italia's interest.
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By 2008, Italy will deploy over 1,000km of high-speed railway track, with the Rome-Naples and Milan-Turin stretches already up and running. The highest train speeds reach 300km per hour and, in response to the public need for high-speed Internet services while in transit, Telecom Italia has planned to launch its high-speed Internet service in partnership with the railway company. HSDPA technology is adopted for back transmission through which data is converted to Wi-Fi signals to facilitate the Internet and other high-speed data services.
On a high-speed railway, call traffic is concentrated in moving carriages, and solution design in terms of construction costs and high-speed performance should be considered, especially technical difficulties brought about by Doppler frequency shifts at high speeds. Huawei's unique 40W power amplifier enables bi-directional divided linear coverage. Its unique high speed algorithm can overcome influences from both the Doppler effect and excessive cell handovers. Multi-RRU combination technology can improve HSDPA performance, and BBU pool technology can reduce BBU numbers and thus construction costs.
To date, Huawei has completed the solution design and network planning for the trial section of the Rome-Naples high-speed railway. In the near future, subscribers can conveniently use high-speed Internet services on trains between Rome and Naples with the same results as office use.
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