Wireless Network Planning And Designing For WCDMA

In company with the socio-economic development, mobile communication is more and more important in the everyday life, and people need much better quality of communication .The third generation mobile communication system could supply multi- high-quality type of services and global seamless coverage .The system will be able to proceed global roam ,and with mini-type portable terminal proceed any variety corresponding at anytime and anywhere .It's the way of changing mobile communication systems from analog to digital .It will realize narrowband voice mobile communication ( voice) change into broadband multimedia mobile communication ( voice, image, data, video frequency ,etc). Furthermore it will supply high speed information access, too. All of this not only supplies a favorable business opportunity for equipment manufacturers and business transport operation quotient ,but also supplies new develop space for application message suppliers .On one hand ,in the drastic market competition position, the Chinese mobile communication system capacity is developing at very fast speed ,the system is developing into high capacity, wide coverage and high-quality. On the other hand,the system also is developing into data motion , intelligent ,and multimedia. In company with the third generation mobile communication technical realize the mobile communication fusion with the internet ,the future wireless compact technique transmission rate would reach 2Mb/s,in order to satisfy higher transmission rate or current media type business, WCDMA at 3gpp standard of R5 edition introduce high speed downlink package access HSDFA technology ,it would be able support average 8- 10Mbit/ message transmission rates, humanity society is removing to information age.The construction of the third generation, is the most important problem that business transport operation quotients cares about is the rate of spectrum utilization ,the decrease of wireless networks equipment drawing construct cost and routine attention charge ,as well as supply best Qos access for client. Wireless networks planning and optimizations is the most important factor of network performance and prime cost .Wireless spectra implicit shared use tightness hard up and costliness, transport operation quotients advance wireless networks area coverage, sub zone capacity and quality of service by different kinds of avenue .These certainty also bring up higher require for network planning and optimization .Network planning 's aim is that avail business forecast, base station location ,prevision of coverage area, antennae design, frequency planning and frequency reuse technology etc instrument .Effective solute the problem of capacity, cover, disturb etc,improve quality of voice ,equipment utilization efficiency , and invested earning rate.