8/8/2019 Zte Cdma Wll Network Soluti..

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ZTE CDMA WLL Network Solution

ZTE CDMA WLL SolutionIn recent years, fixed-line operators have faced more and more pressures such as slow growth of fixed-line phone subscribers, considerable decrease of ARPU, increasingdemand on mobility, no upgrade routes for original radio technology, and high network construction cost caused by the private land ownership system. Upon continuousinnovations in wireless technologies and years of experience in wireless network construction, ZTE improves its CDMA WLL solutions with advanced and cost-effective mobilityand roaming restriction functions to solve the above problems.

There are two systems for implementation of universal telecom services: wired access and wireless access systems. Compared with wired access, wireless access does not

require digging trenches or setting up posts for fibers & cables. The fast site deployment and convenient maintenance make it very useful in areas with long distance and wide

coverage. Among the wireless technologies, CDMA adopts 3G standards, spread spectrum technology, FEC channel performance improvement, high anti-interference capability,

and diversity reception technologies, so it has wider coverage radius, less sites needed, faster construction speed, less maintenance workload, lower operation, administration,

and maintenance (OAM) cost, and easier technical upgrade. For this reason, the adoption of CDMA wireless access solution can help telecom operators minimize CAPEX and

OPEX.

The applications of CDMA WLL system include but are not limited to:Areas and even middle or large cities where fixed-line phone service is charged much less than mobile phone service

Last mile access

Areas with saturated wired lines, where the wireless system can be used to boost subscriber capacity

New urban business districts and resident areas, where the demand for phone communication is large, and the construction of a fixedline phone network is costly and takes long

time

Countryside and rural areas with sparse and discrete subscribers where it is difficult and costly to install cables.

Areas with geographical or c limatic constraints, for example, deserts, islands, rugged mountainous areas, and areas enmeshed with waterways, where the installation of cables

and overhead lines is greatly hampered

Areas where a communication system is urgently needed for temporary purpose. For example, large construction sites, great sport event in a stadium, exhibition, emergency

rescue, all of which require an emergent communication access.

Figure 1 CDMA WLL Application Scenarios

As the largest CDMA equipment provider in China, ZTE has committed to the R&D of new CDMA technologies and services for years. Backed by i ts mature and leading

technologies, powerful network planning capability, and a global technical support system, ZTE can quickly provide professional and cost-effective total CDMA WLL network

solutions to customers already covering over sixty countries around the world.

Advanced All-IP Technology

As an active advocate of All-IP technology, ZTE takes the lead to implement Ap interface as well as TrFO and RTO functions that will greatly save bandwidth and vocoder

resources at the A interface. Theoretically, a maximum of 80% transmission bandwidth and over 30% vocoder resources can be reduced. Multiple Network Solutions

According to the requirements and actual conditions of the existing networks, ZTE provides CDMA WLL solutions based on A interface and V5.2 interface in compliance with the

CDMA2000 protocols, making them easily evolve to mobile networks. More over, ZTE can provide NGN+CDMA WLL network solutions.

CDMA WLL Network Solution - ZTE Corporation http://wwwen.zte.com.cn/en/solutions/wireless/cdma2000/20070

9/14/2009

8/8/2019 Zte Cdma Wll Network Soluti..

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CDMA WLL Network Solution - ZTE Corporation http://wwwen.zte.com.cn/en/solutions/wireless/cdma2000/20070

9/14/2009