22-10-2012, 01:09 PM
Mobile Technology At Nokia Care
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HISTORY OF NOKIA
Nokia is a Finland based company, incorporated in 1967.
Nokia started of as a pulp, rubber and cable manufacturing company to a major manufacturer of mobile devices.
It’s the leading manufacturer of mobile devices.
Nokia offers a wide range of mobile devices with the experience in music, video, imaging, gaming and a lot more.
It also provides the services for network operators.
Company recorded revenues of 41,121 Million € in 2007 about 20.3 % increase from 2006.
WHY NOKIA IS ON TOP?
Bold Strategic Intent
Innovation Through Value Chain
Flat Organization
Global R & D Networks
Customer Focus
NOKIA IN INDIA
Nokia started its operations in India in 1995.
Nokia merged with Siemens including handsets and network infrastructure.
In 2004, it was chosen for ‘the most respected consumer durables company’ by Business world.
In 2005, Nokia was recognized as the ‘Brand of The Year’ by the CII for being most preferred by the customers.
Cells
The coverage area is divided into hexagonal cells
A BTS is situated at three of the vertices of each cell
In USA, the spectrum in each cell is divided into two bands: A-band and B-band, each 25 MHz
Each 25 MHz band is divided into 832 30 kHz channels
Two channels separated by 45 MHz
forms a full-duplex channel
The number of channels used in a cell
varies from as low as 4 to as
many as 80
Handover/Handoff
Internal Handovers (only one BSC involved)
Channels in the same cell
Cells under the same BSC
External Handovers (involved the MSC)
Cells under different BSCs under the same MSC
Cells under different MSCs (anchor MSC and relay MSC)
Techniques used:
Minimum acceptable performance: increase power i.s.o. handover
Power budget: handover i.s.o. increasing power