GSM Call Flow (GSM Originating Call) Cell Mobile Station User Mobile Mobile Network Base Stations NSS BSS MSC VLR Fixed Network PSTN PSTN EventStudio System Designer 4.0 13-Sep-08 21:38 (Page 1) LEG: GSM Mobile Originated Call This sequence diagram was generated with EventStudio System Designer 4.0 (http://www.EventHelix.com/EventStudio). Copyright © 2008 EventHelix.com Inc. All Rights Reserved. The EventStudio source files for this document can be downloaded from http://www
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Faculty of Engineering Department of Electrical Engineering Undergraduate project Dual Band Mobile Jammer for GSM 900 & GSM 1800 Done by: Ahmed Sudqi Hussein Abdul-Rahman Ahmad Nasr Raja Mohammad Supervised by: Prof. Nihad Dib 1 Table of contents Abstract ………….…...............................................................................................3 1. Introduction ………….................................................................…........................4 2. Jamming Techniques
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IEEE/OSA/IAPR International Conference on Informatics‚ Electronics & Vision Accident Detection and Reporting System using GPS‚ GPRS and GSM Technology Md. Syedul Amin‚ Jubayer Jalil Department of Electrical‚ Electronic and Systems Engineering Universiti Kebangsaan Malaysia 43600 UKM‚ Bangi‚ Selangor‚ Malaysia M. B. I. Reaz Department of Electrical‚ Electronic and Systems Engineering Universiti Kebangsaan Malaysia 43600 UKM‚ Bangi‚ Selangor‚ Malaysia email: mamun.reaz@gmail.com Abstract— Speed
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IDENTIFYING CAPACITY CONSTRAINTS & OVERUTILIZED CELLS VARIOUS KPIs with Root-Cause-Analysis of problems. o o Frequency Plan (BCCH & TCH) Neighbor plan • • CONDUCTING A GSM SYSTEM PARAMETERS AUDIT Deliverables of an Optimization activity: o o Baseline Drive test comparison with post implementation results. Statistical comparison of baseline & improved network. o Parameter Audit report. o Physical parameter inconsistencies. o Frequency & neighbor plan inconsistencies o Recommendations for
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A Comparison of Digital and Analog Technologies Introduction Analog-to-Digital and Digital-to-Analog Conversions Telecommunications relies on the transmission of data through different mediums such as a telephone‚ radio‚ television‚ among others. These transmissions are done through two signal types‚ which are analog and digital. Analog is the first type of transmission type because it is the older and has been around for a lot longer than digital. On the other hand‚ even though digital transmission
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Network and Cell Information Acquisition When a mobile station is successful in synchronizations it reads four time-slot long Broadcast Control CHannel (BCCH) for the system information. This channel has a specific time-slot relative to the FCCH/SCH channels. The information in the BCCH channel includes: Location Area ID (LAI) o Mobile Country Code (MCC) o Mobile Network Code (MNC) o Location Area Code (LAC) Cell ID (CID) BCCH Allocation List (BA list) – a list of neighboring cells’
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CHAPTER 3 SYSTEM MODEL 3.1 MC-CDMA System model. What is MC-CDMA: - MC-CDMA is a digital modulation technique where a single data symbol is transmitted at multiple narrowband subcarrier encoded with a phase offset of 0 and π instead based on a spreading code. The narrowband subcarrier are generated using BPSK modulated signals‚ each at different frequencies which at baseband are at multiples of a harmonic frequency‚ 1/T_b. Consequently‚ the subcarriers are orthogonal to each other at baseband‚ and
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Section 3. – Warranties and Conditions Art. 1545. Where the obligation of either party to a contract of sale is subject to any condition which is not performed‚ such party may refuse to proceed with the contract or he may waive performance of the condition. If the other party has promised that the condition should happen or be performed‚ such first mentioned party may also treat the nonperformance of the condition as a breach of warranty. Where the ownership in the thing has not passed‚ the buyer
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ard Synopsis Title: GSM Based Notice Board Introduction Now a days every advertisement is going to be digital. The big shops and shopping centers are using the digital moving displays now. In Railway station and bus stands everything that is ticket information‚ platform number etc is displaying in digital moving display. But in these displays if they wants to change the message or style they have to go there and connect the display to PC or laptop. Suppose the same message if the person
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1. Have you traveled out of state? _____Yes _____No 2. If yes‚ do you travel for: Business Both Pleasure 3. How often do you travel for the above? 0–1 times per month 0–1 times per year 2–3 times per month 2–3 times per year 4–5 times per month 4–5 times per year 6 or more times per month 6 or more times per year 4. How do you make your travel arrangements? Airline
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