Wcdma Channels ( Detailed ) CHAPTER ONE/THREE

WCDMA Channels

Logical Channels are not actually channels but rather they can be defined as different tasks performed by the network and the UE at different times.They describe the type of information to be transferred.
Logical channels are categorized into control channels and traffic channels.Control channels carry the control plane information.Traffic Channels carry the user plane information.
Transport channels describes how the logical channels will be transferred, or it can be defined as how and with what characteristics data is transferred over the interface.
It comes into two groups:
·       Dedicated Channels
·       Common Channels
Radio Frame Structure

2G Channels In Telecom.

MULTIPLE TECHNIQUES
In order for several links to be in progress simultaneously in the same geographical area without mutual interference , multiple access techniques are deploy
The commonly used multiple access techniques
–       Frequency Division Multiple Access  (FDMA )
–       Time Division Multiple Access (TDMA )
--Code Division Multiple Access (CDMA )