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GSM

Nokia Unveils Three Lumia Smartphones for Windows Phone 8.1

By agaur on April 8, 2014
Nokia Lumia 930

Nokia recently announced three, Windows Phone 8.1 based, Lumia smartphones dual-SIM Lumia 630, Lumia 635 and Lumia 930. Nokia also confirmed that Windows Phone 8.1 is scheduled to be available across the entire Lumia Windows Phone 8 portfolio as an over-the-air update this summer following testing and partner approvals.

Nokia Lumia 930 specifications are as below

Network Sharing: Support of Multi-Operator Core Network by GERAN (MOCN-GERAN)

By agaur on December 22, 2012
Network Sharing - MOCN GERAN

With a number of spectrum reframing (e.g. 900 MHz spectrum re-farming) being done to free up band for LTE technology use, operators may have to reduce their GSM capacity and may share their GSM networks. As re-farming significantly reduces the set of frequencies allocated to GSM, 3GPP decided to look in to the RAN sharing method and along with supporting companies found that MOCN (Multiple-Operator Core Network) is optimal RAN Sharing method.

Local Call Local Switch System (LCLS) Overview

By agaur on December 7, 2012
Local Call Local Switch System Architecture

The transmission path is an important part of wireless networks. In wide rural areas or in remote areas, operators sometimes face the challenges to deploy networks due to the lack of or cost of fast and reliable backhaul transport network. Statistical data indicate that many calls in a mobile network in these areas are local calls. There is good probability that call between two terminals go via same BTS or in between co-located BTSs or with in same BSC.

Samsung Reveals Dual Screen SCH-W2013 Flip Phone

By agaur on November 24, 2012
Samsung SCH-W2013

Samsung has revealed a new Samsung SCH-W2013 flip phone with expected price to be in between $2900 and $3200. Device release date has yet to be confirmed. The new expensive flip smart phone has clamshell form factor design, dual 3.7 inches Super AMOLED dazzling screen and Android 4.0 operating system. Phone supports dual network technologies GSM and CDMA and phone is intended for Chinese market.

GSM to LTE – Radio Transmission Technologies

By kamal on September 15, 2012
GSM to LTE

Seeds of today’s mobile communication were laid down in 1947 when the AT&T for the first time introduced the cellular concept of reusing radio frequency. Today, the cellular concept is fundamental to almost all mobile communication technologies.

This article provides an overview of the radio transmission technologies used in mobile cellular communication, right from 1G to 4G.

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