The SIM card contains its internal memory, in which the data, personal and financial information as well as the identity for GSM / CDMA are stored. Th
Read More
The initial range is the process of estimating the distance or propagation time between a transmitter and a receiver. Area information can be used to
Read More
A transmitted signal changes as it travels to the receiver. The effect of these changes is commonly referred to as fading. The fading results from the
Read More
How Many Sub Carrier in LTE? Read below,..There are different kinds of sub-carriers: Data sub-carrier Pilot Sub-carrier DC sub-carrier G
Read More
Here I write about EVDO (HSD) reverse channel in short or summarize defination. The EVDO channels for the reverse connection have a similar structure
Read More
MIMO is effectively radio antenna technology because multiple antennas are used at the transmitter and receiver to allow a variety of signal paths to
Read More
Radio wave can be propagated from the transmitting antenna to the receiving antenna in many ways: perpendicular incidence wave or ground refraction wa
Read More
When the voice signal is transmitted after being processed and modulated, the frequency hopping technique will be used too, i.e. the transmission carr
Read More
For both mobiles and base station in direct sequence CDMA must be synchronized. In the IS-95A system, synchronization is based on the Global Positioni
Read More
WiMAX is a coined term or acronym meaning worldwide interoperability for microwave access (WiMAX). What WiMAX is however at its heart is a standards i
Read More
In addition to 3G, Wi-Fi based-systems may be used to provide broadband wireless. Wi-Fi is based on the IEEE 802.11 family of standards and is primari
Read More
The Logical Channel is used in time multiplex in a physical channel, which is categorized according to the types of messages transmitted in the physi
Read More