Rf-Optimization & Log-File Analysis
Before Starting
experiences to guide RF Engineers on how to define/analyze problems or cases and optimize
This blog is about wcdma 3G 4g Lte Telecom/wireless communication & tells evolution in network generation, and how does it works.1Generation to 5 Generation telecom mobile networks.
Showing posts with label 2g. Show all posts
Showing posts with label 2g. Show all posts
Complete Tutorial 3G Rf-Optimization & Log-File Analysis
Before Starting
experiences to guide RF Engineers on how to define/analyze problems or cases and optimize
How To Create Command Sequence & Importing Cell File in TEMS
How To Create Command Sequence & Importing Cell File
Learn:-How To Load Cell & Map File For Drive Test
Make HQ Raster Image and Drive Test Procedure
Make HQ Raster Image
>>CLICK HERE<< To Download Universal Maps Downloader With KEYGENClick the Above link to Download the software and start making your own High Quality RASTER image, which could be easily loaded in mapinfo.
Antenna Principals For Mobile in Telecommunication
Antenna Systems and Its Principals
In the last few years a large technological jump has taken place in the field of mobile communications due to the introduction of new mobile communication networks (GSM/PCN). The number of subscribers worldwide has risen to over 150 Million. Figure. shows an overview of the mobile communications services and the relevant frequency ranges within Germany alone.
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 )
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 )
Telecom Interview Question & Answer.
(A)What is ciphering
Ciphering modifies the contents of the eight interleaved blocks through the use of encryption techniques to the particular mobile station and base transceiver station.
Two types of ciphering algorithms, called A3 and A5, are used in GSM to prevent unauthorized network access and privacy for the radio transmission respectively.
How many carrier frequencies are there in GSM-900 and DCS-1800? How much is the separation between the carrier frequencies?
124 carriers.
There are 8 channels in each carrier.
Channel separation is 200 KHz.
What is the Downlink and uplink spectrum is allocated to DCS-1800?
1800 MHz. Up link Frequency 1725-1780 MHZ.
Down link Frequency 1820-1870 MHz
Ciphering modifies the contents of the eight interleaved blocks through the use of encryption techniques to the particular mobile station and base transceiver station.
Two types of ciphering algorithms, called A3 and A5, are used in GSM to prevent unauthorized network access and privacy for the radio transmission respectively.
How many carrier frequencies are there in GSM-900 and DCS-1800? How much is the separation between the carrier frequencies?
124 carriers.
There are 8 channels in each carrier.
Channel separation is 200 KHz.
What is the Downlink and uplink spectrum is allocated to DCS-1800?
1800 MHz. Up link Frequency 1725-1780 MHZ.
Down link Frequency 1820-1870 MHz
Basic Wireless GSM Fundamentals
Basic Wireless GSM Fundamentals
Understanding GSM.
INTRODUCTION:-The Global
System for Mobile Communications (GSM) is a set of recommendations and
specifications for a digital cellular telephone network (known as a Public Land
Mobile Network, or PLMN).
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