Positioning in GSM. Date: 14th March 2003
|
|
- Primrose Horton
- 8 years ago
- Views:
Transcription
1 Positioning in GSM Date: 14th March 2003
2 Overview of seminar Potential applications in cellular network Review of localization system and techniques Localization in GSM system Progress of the project with Smartone
3 Potential Applications Location Sensitive Billing 1. The price of call in cellular network is related to location of caller. 2. Localization is available, operators can provide different prices for different locations. 3. Example: price of call at home is less expensive than in the street. a. Completive to the fixed line network b. No need to use fixed network even at home
4 Potential Applications Increased Subscriber Safety 1. More and more people have cellular phones so more and more emergency calls from MS. 2. However, most callers can t provide accurate position a. Too scared b. Don t know their location. c. Involved in the accident and not able to tell. 3. Localization of MS a. fast to help the caller b. efficient dispatch of emergency vehicles
5 Potential Applications Intelligent Transport system 1. Store real-time traffic and all buildings information of different locations. 2. MS user make a cellular call and request for traffic information, it provides the traffic information according to the location of the caller. 3. Caller asks for entertainment information, it provide relevant information around the area. a. Especially suitable for visitors
6 Potential Applications Enhanced Network Performance 1. Monitor caller location, more efficient for handoff BS1 MS BS2 2. Gather information of caller location, help design of the cellular network
7 Potential Applications When localization technique is employed in the cellular network. Enhances subscribers. Benefits cellular operators.
8 Positioning system and techniques Positioning System Signal Measurements Estimation System TOA TDOA AOA Positioning Finding System Co-ordinate of the MS (x,y)
9 Positioning system and techniques Estimated MS location: 1. Derived measurements from signals in GSM system. (Measurement Estimation System) 2. Each measurement form a locus of MS 3. Loci s intersection is the MS location Locus 1 Locus 2
10 Positioning system and techniques Classfication 1. Self-positioning: GPS / Mobile-Based 2. Remote Positioning: Radar / Network Based 3. Indirect Positioning: Mixed of above / Hybrid BS2 BS1 MS BS3
11 Positioning system and techniques Measurements : 1. Propagation time or Time of Arrival (TOA) 2. Time Different of Arrival (TDOA) 3. Angle of Arrival (AOA) Assumption, 2D scenario, i.e.bs and MS on the same plane. D2 D1
12 Positioning system and techniques Propagation Time / Time of Arrival (TOA) 1. The time which signal travels between a transmitter and a receiver. a) FindthetimeBStoMSorviceversa. b) Send signal from BS to MS and then MS send it back to BS or vice versa. BS1 Synchronization MS BS1 MS
13 Positioning system and techniques TOA1, TOA2.. Speed of light c Distance between MS and each BS BS3 Distance formula BS1 form a set of loci BS2 Intersection is the MS location Circular-Circular Method
14 Positioning system and techniques Time different of arrivals (TDOA) 1. Difference of time of signal travel from one transmitter relative to another transmitter. 2. All TDOAs also relative to the same transmitter BS1. TDOA21 = t2 t1 t3 BS3 TDOA31 = t3 t1 BS1 t1 t2 BS2 MS Synchronized BS
15 Positioning system and techniques TDOA12, TDOA13.. Speed of light c Distance difference between MS and each BS relative to BS1 L3 BS4 Distance formula BS3 form a set of loci BS1 L1 L2 BS2 Intersection is the MS location Hyperbolic-Hyperbolic- Method
16 Positioning system and techniques Angle of Arrival (AOA) 1. Angle of the signal arrived from the transmitter relative to the receiver. θ1 BS1 BS2 θ2 MS
17 θ1, θ2.. Positioning system and techniques m1 = tan(θ1) Form a set of slopes By point slope point form a set of loci θ1 θ2 Intersection is the MS location Angle-Angle- System
18 Positioning system and techniques Performance analysis Root Mean Square: RMS= E[(ˆ x x) 2 + ( yˆ y) 2 ] RMS affects by theaccuracy of measurement, relative geometry between BS and MS and Algorithm
19 Localization in GSM BS2 BS1 Sectored cell The severing BS knows the MS is in which sector but not in others BTS
20 Localization in GSM two 25MHz blocks of frequency spectrum uplink downlink 125 carrier frequencies 200kHz f f
21 Localization in GSM GSM system use TDMA in each frequency band. In time domain each frequency band is structured in time slots of 577µs duration. Group of 8 slot called a frame. TS1 TS2 TS3 TS4 TS5 TS6 TS7 TS8 frame
22 Localization in GSM Logical Channels: 1. Traffic channels Voice data transmission. 2. Associated and Dedicated channels co-ordinate BS and MS 3. Common channels establish links 4. Broadcast channels transmit BS parameters Data in logical channels is fitted into time slot by different burst structure.
23 Localization in GSM Interested burst structure in Traffic Channel Normal Burst bit PN training sequence in the middle 2. Channel estimation Total =148bits, 577µs guard data TS data guard 1 bit = 3.90µs
24 Localization in GSM Add a correlator in the receiver Find the correlation of the received PN training sequence and stored PN sequence. The time which gives the maximum correlation function is the time of propagation. Assumption: Synchronization. Received PN sequence correlator stored PN sequence Correlation function
25 Localization in GSM Only accuracy of 1 bit which is ±585m. 1 bit = 3.90µs 1170m The resolution is not enough for some application which needs high accuracy Using PN training sequence in traffic channels, thus only the distance between the serving BS and MS can be estimated
26 Time Advance(TA) Localization in GSM TDMA, arrival of signal should be at appropriated time slot. In order to do so, thereisatainthegsmsystem. BS1 TS1 TS1 TS1 MS Only1bit accuracy, which is 585m Only serving BS provide TA TA
27 Localization in GSM Force handover BS2 BS1 MS Degrade voice quality and the capacity of the system
28 Localization in GSM Power strength of signal from the BSs are measured in the dummy time slot. BS2 P 2 PG G λ = t t r r 2 2 ( 4π ) d L BS1 Power strength with Power Loss Model then estimated distance between MS and each BS Use Circular Circular Method
29 Summary: 1. Sectoring Localization in GSM a. provide acceptable accuracy when the cell s size is small. Too rough when using cell size is large. b. suitable for solving ambiguity. 2. Training sequence data burst in traffic channel. a. only the distance between serving BTS and MS b. Modification of MS c. 1 bit accuracy
30 Localization in GSM Summary: 3. TA with forcing handover a. Modify the MS b. Can be use with circular circular method c. Only 1 bit accuracy d. Degrade voice quality 4. Power strength measurements with the help of power loss model can be used for MS localization.
31 Project with Smartone 2 meetings with Smartone. The BS locations near CU Available measurements, power strength Change the BS from latitude and longitude to Cartesian Coordinate (x,y) 2D scenario. Use Power Loss model to estimate the distance between source and BS and then use circular circular method to estimate MS location
32 Project with Smartone Offline experiments e.g. all measurements and estimation processes are not real time Then evaluate the results and performance by finding RMS.
33 Project with Smartone NextPhase: 1. Get more positioning related measurements to do analysis. 2. Develop special algorithm based on analyzed results.
34 Question and Answer Thanks
GSM and Similar Architectures Lesson 07 GSM Radio Interface, Data bursts and Interleaving
GSM and Similar Architectures Lesson 07 GSM Radio Interface, Data bursts and Interleaving 1 Space Division Multiple Access of the signals from the MSs A BTS with n directed antennae covers mobile stations
More informationGSM: PHYSICAL & LOGICAL CHANNELS
GSM: PHYSICAL & LOGICAL CHANNELS AN OVERVIEW Prepared by Learntelecom.com 1. GSM: PHYSICAL AND LOGICAL CHANNELS GSM uses a mix of Frequency Division Multiple Access (FDMA) and Time Division Multiple Access
More informationGSM Channels. Physical & Logical Channels. Traffic and Control Mutltiframing. Frame Structure
GSM Channels Physical & Logical Channels Traffic and Control Mutltiframing Frame Structure Engr. Mian Shahzad Iqbal Lecturer Department of Telecommunication Engineering Radio Interface The radio interface
More informationExercise 2 Common Fundamentals: Multiple Access
Exercise 2 Common Fundamentals: Multiple Access Problem 1: TDMA, guard time. To set up a GSM-connection, the base station (BTS) and the mobile station (MS) use the following short access burst in a TDMA-slot
More informationFIGURE 12-1 Original Advanced Mobile Phone Service (AMPS) frequency spectrum
FIGURE 12-1 Original Advanced Mobile Phone Service (AMPS) frequency spectrum FIGURE 12-2 Complete Advanced Mobile Phone Service (AMPS) frequency spectrum TABLE 12-1 AMPS Frequency Allocation TABLE 12-2
More informationAttenuation (amplitude of the wave loses strength thereby the signal power) Refraction Reflection Shadowing Scattering Diffraction
Wireless Physical Layer Q1. Is it possible to transmit a digital signal, e.g., coded as square wave as used inside a computer, using radio transmission without any loss? Why? It is not possible to transmit
More informationHow To Understand The Gsm And Mts Mobile Network Evolution
Mobile Network Evolution Part 1 GSM and UMTS GSM Cell layout Architecture Call setup Mobility management Security GPRS Architecture Protocols QoS EDGE UMTS Architecture Integrated Communication Systems
More informationGSM System. Global System for Mobile Communications
GSM System Global System for Mobile Communications Introduced in 1991. Settings of standards under ETSI (European Telecommunication Standards Institute) Services - Telephone services - Data services -
More informationCellular Network Organization. Cellular Wireless Networks. Approaches to Cope with Increasing Capacity. Frequency Reuse
Cellular Network Organization Cellular Wireless Networks Use multiple low-power transmitters (100 W or less) Areas divided into cells Each served by its own antenna Served by base station consisting of
More informationFrequency [MHz] ! " # $ %& &'( " Use top & bottom as additional guard. guard band. Giuseppe Bianchi DOWNLINK BS MS 890.4 UPLINK MS BS 890.2.
Frequency [MHz] 960 DOWNLINK BS MS 935 915 UPLINK MS BS 890 890.4 890.2 guard band Use top & bottom as additional guard! " # $ %& &'( " 1 2 3 4 5 6 7 8 F F uplink dwlink ( n) = [ 890.2 + 0.2( n 1) ] (
More informationImplementation of Mobile Measurement-based Frequency Planning in GSM
Implementation of Mobile Measurement-based Frequency Planning in GSM Comp.Eng. Serkan Kayacan (*), Prof. Levent Toker (**) (*): Ege University, The Institute of Science, Computer Engineering, M.S. Student
More informationFigure 1: cellular system architecture
Question 1: (30 marks) Consider a FDM cellular system with 120 cites, a frequency reuse factor of N=12, and 900 overall two-way channels. Omni-directional antennas are used: Figure 1 shows some of the
More informationGSM Network and Services
GSM Network and Services Cellular networks GSM Network and Services 2G1723 Johan Montelius 1 The name of the game The number one priority for mobile/cellular networks is to implement full-duplex voice
More informationWireless Cellular Networks: 1G and 2G
Wireless Cellular Networks: 1G and 2G Raj Jain Professor of Computer Science and Engineering Washington University in Saint Louis Saint Louis, MO 63130 Audio/Video recordings of this lecture are available
More informationCS263: Wireless Communications and Sensor Networks
CS263: Wireless Communications and Sensor Networks Matt Welsh Lecture 4: Medium Access Control October 5, 2004 2004 Matt Welsh Harvard University 1 Today's Lecture Medium Access Control Schemes: FDMA TDMA
More informationMobile Phone Tracking & Positioning Techniques
Mobile Phone Tracking & Positioning Techniques Laxmana Siridhara Arigela #1, Putta Aditya Veerendra *2, Simhadri Anvesh *2, Kolisetty Sandeep Satya Hanuman #3 1 Assistant Professor, Department of ECE,
More informationGSM Radio Part 1: Physical Channel Structure
GSM Radio Part 1: Physical Channel Structure 1 FREQUENCY BANDS AND CHANNELS...2 2 GSM TDMA...4 3 TDMA FRAME HIERARCHY...6 4 BURST STRUCTURE...7 5 TDMA MULTIFRAME STRUCTURE...9 5.1 Traffic Multiframe (26-Multiframe)...10
More informationLecture 1. Introduction to Wireless Communications 1
896960 Introduction to Algorithmic Wireless Communications Lecture 1. Introduction to Wireless Communications 1 David Amzallag 2 May 25, 2008 Introduction to cellular telephone systems. How a cellular
More informationModule 5. Broadcast Communication Networks. Version 2 CSE IIT, Kharagpur
Module 5 Broadcast Communication Networks Lesson 9 Cellular Telephone Networks Specific Instructional Objectives At the end of this lesson, the student will be able to: Explain the operation of Cellular
More informationCh 2.3.3 GSM PENN. Magda El Zarki - Tcom 510 - Spring 98
Ch 2.3.3 GSM In the early 80 s the European community decided to work together to define a cellular system that would permit full roaming in all countries and give the network providers freedom to provide
More informationLecture overview. History of cellular systems (1G) GSM introduction. Basic architecture of GSM system. Basic radio transmission parameters of GSM
Lecture overview History of cellular systems (1G) GSM introduction Basic architecture of GSM system Basic radio transmission parameters of GSM Analogue cellular systems 70 s In the early 70 s radio frequencies
More informationHow To Understand And Understand The Power Of A Cdma/Ds System
CDMA Technology : Pr. Dr. W. Skupin www.htwg-konstanz.de Pr. S. Flament www.greyc.fr/user/99 On line Course on CDMA Technology CDMA Technology : Introduction to Spread Spectrum Technology CDMA / DS : Principle
More informationChapter 6 Bandwidth Utilization: Multiplexing and Spreading 6.1
Chapter 6 Bandwidth Utilization: Multiplexing and Spreading 6.1 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Note Bandwidth utilization is the wise use of
More information192620010 Mobile & Wireless Networking. Lecture 5: Cellular Systems (UMTS / LTE) (1/2) [Schiller, Section 4.4]
192620010 Mobile & Wireless Networking Lecture 5: Cellular Systems (UMTS / LTE) (1/2) [Schiller, Section 4.4] Geert Heijenk Outline of Lecture 5 Cellular Systems (UMTS / LTE) (1/2) q Evolution of cellular
More informationHow To Understand The Theory Of Time Division Duplexing
Multiple Access Techniques Dr. Francis LAU Dr. Francis CM Lau, Associate Professor, EIE, PolyU Content Introduction Frequency Division Multiple Access Time Division Multiple Access Code Division Multiple
More informationCommunication Infrastructure: GSM Communication
Communication Infrastructure: GSM Communication Andreas Schöffl and Michael Irger Abstract. In this Paper we describe the GSM Standard of Mobile Phones. The Global System for Mobile communications is the
More information3GPP Wireless Standard
3GPP Wireless Standard Shishir Pandey School of Technology and Computer Science TIFR, Mumbai April 10, 2009 Shishir Pandey (TIFR) 3GPP Wireless Standard April 10, 2009 1 / 23 3GPP Overview 3GPP : 3rd Generation
More informationGlobal System for Mobile Communications (GSM)
Global System for Mobile Communications (GSM) Nguyen Thi Mai Trang LIP6/PHARE Thi-Mai-Trang.Nguyen@lip6.fr UPMC/PUF - M2 Networks - PTEL 1 Outline Principles of cellular networks GSM architecture Security
More informationAdvanced Security and Mobile Networks
Advanced Security and Mobile Networks W.Buchanan (1) GSM/3G Technology The most important mobile network Software Security W.Buchanan (2) First generation (1G). First generation mobile phones (1G) had
More informationGSM GSM 05.08 TECHNICAL July 1996 SPECIFICATION Version 5.1.0
GSM GSM 05.08 TECHNICAL July 1996 SPECIFICATION Version 5.1.0 Source: ETSI TC-SMG Reference: TS/SMG-020508QR ICS: 33.060.50 Key words: Digital cellular telecommunications system, Global System for Mobile
More informationPXI. www.aeroflex.com. GSM/EDGE Measurement Suite
PXI GSM/EDGE Measurement Suite The GSM/EDGE measurement suite is a collection of software tools for use with Aeroflex PXI 3000 Series RF modular instruments for characterising the performance of GSM/HSCSD/GPRS
More informationDimensioning, configuration and deployment of Radio Access Networks. Lecture 2.1: Voice in GSM
Dimensioning, configuration and deployment of Radio Access Networks. Lecture.: Voice in GSM GSM Specified by ETSI Frequency Division Duplex TDMA system Originally at 900MHz, but today also at 800, 800,
More informationMonitoring for Handover from TDD to GSM
Agenda Item: Source: Title: Document for: Siemens Monitoring for Handover from TDD to GSM Handover Preparation Monitoring for Handover from TDD to GSM The intention of this document is an explanation of
More informationBluetooth voice and data performance in 802.11 DS WLAN environment
1 (1) Bluetooth voice and data performance in 802.11 DS WLAN environment Abstract In this document, the impact of a 20dBm 802.11 Direct-Sequence WLAN system on a 0dBm Bluetooth link is studied. A typical
More informationMobile Communications TCS 455
Mobile Communications TCS 455 Dr. Prapun Suksompong prapun@siit.tu.ac.th Lecture 26 1 Office Hours: BKD 3601-7 Tuesday 14:00-16:00 Thursday 9:30-11:30 Announcements Read the following from the SIIT online
More informationGSM Air Interface & Network Planning
GSM Air Interface & Network Planning Training Document TC Finland Nokia Networks Oy 1 (40) GSM Air Interface & Network Planning The information in this document is subject to change without notice and
More information8. Cellular Systems. 1. Bell System Technical Journal, Vol. 58, no. 1, Jan 1979. 2. R. Steele, Mobile Communications, Pentech House, 1992.
8. Cellular Systems References 1. Bell System Technical Journal, Vol. 58, no. 1, Jan 1979. 2. R. Steele, Mobile Communications, Pentech House, 1992. 3. G. Calhoun, Digital Cellular Radio, Artech House,
More informationGSM GSM 05.01 TECHNICAL May 1996 SPECIFICATION Version 5.0.0
GSM GSM 05.01 TECHNICAL May 1996 SPECIFICATION Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-020501Q ICS: 33.060.50 Key words: Digital cellular telecommunications system, Global System for Mobile
More informationRevision of Lecture Eighteen
Revision of Lecture Eighteen Previous lecture has discussed equalisation using Viterbi algorithm: Note similarity with channel decoding using maximum likelihood sequence estimation principle It also discusses
More informationCellular Network Organization
Cellular Networks Cellular Network Organization Use multiple low-power transmitters (100 W or less) Areas divided into cells o Each served by its own antenna o Served by base station consisting of transmitter,
More informationAppendix C GSM System and Modulation Description
C1 Appendix C GSM System and Modulation Description C1. Parameters included in the modelling In the modelling the number of mobiles and their positioning with respect to the wired device needs to be taken
More informationCOMPATIBILITY STUDY FOR UMTS OPERATING WITHIN THE GSM 900 AND GSM 1800 FREQUENCY BANDS
Electronic Communications Committee (ECC) within the European Conference of Postal and Telecommunications Administrations (CEPT) COMPATIBILITY STUDY FOR UMTS OPERATING WITHIN THE GSM 900 AND GSM 1800 FREQUENCY
More informationRESOURCE ALLOCATION FOR INTERACTIVE TRAFFIC CLASS OVER GPRS
RESOURCE ALLOCATION FOR INTERACTIVE TRAFFIC CLASS OVER GPRS Edward Nowicki and John Murphy 1 ABSTRACT The General Packet Radio Service (GPRS) is a new bearer service for GSM that greatly simplify wireless
More informationEPL 657 Wireless Networks
EPL 657 Wireless Networks Some fundamentals: Multiplexing / Multiple Access / Duplex Infrastructure vs Infrastructureless Panayiotis Kolios Recall: The big picture... Modulations: some basics 2 Multiplexing
More informationMobile Communications Chapter 4: Wireless Telecommunication Systems slides by Jochen Schiller with modifications by Emmanuel Agu
Mobile Communications Chapter 4: Wireless Telecommunication Systems slides by Jochen Schiller with modifications by Emmanuel Agu Market GSM Overview Services Sub-systems Components Prof. Dr.-Ing. Jochen
More informationGSM - Global System for Mobile Communications
GSM - Global System for Mobile Communications VLR BTS BSC GMSC PSTN MS HLR 1) Overview of GSM architecture 2) GSM channel structure 05-1 GSM - Global System for Mobile Communications VLR BTS BSC GMSC PSTN
More informationHow To Make A Multi-User Communication Efficient
Multiple Access Techniques PROF. MICHAEL TSAI 2011/12/8 Multiple Access Scheme Allow many users to share simultaneously a finite amount of radio spectrum Need to be done without severe degradation of the
More informationThe GSM and GPRS network T-110.300/301
The GSM and GPRS network T-110.300/301 History The successful analog 1:st generation mobile telephone systems proved that there is a market for mobile telephones ARP (AutoRadioPuhelin) in Finland NMT (Nordic
More informationGSM LOGICAL CHANNELS
GSM LOGICAL CHANNELS There are two types of GSM logical channels 1. Traffic Channels (TCHs) 2. Control Channels (CCHs) Traffic channels carry digitally encoded user speech or user data and have identical
More informationLocation management Need Frequency Location updating
Lecture-16 Mobility Management Location management Need Frequency Location updating Fig 3.10 Location management in cellular network Mobility Management Paging messages Different paging schemes Transmission
More informationCDMA Network Planning
CDMA Network Planning by AWE Communications GmbH www.awe-com.com Contents Motivation Overview Network Planning Module Air Interface Cell Load Interference Network Simulation Simulation Results by AWE Communications
More informationRicha Chitranshi, Jyoti Kushwaha, Prakash Pancholy
Intelligent Optimization of GSM Network Richa Chitranshi, Jyoti Kushwaha, Prakash Pancholy Abstract Performance & Quality of service of GSM network is enhance from the optimization. In the present scenario,
More informationFrequency Hopping for GSM Base Station Tests with Signal Generators SME
Frequency Hopping for GSM Base Station Tests with Signal Generators SME Application Note 1GPAN28E A. Winter 07.95 Products: Signal Generator SME Software Package SME-K1 Introduction One of the problems
More informationGlobal System for Mobile Communication (GSM)
Global System for Mobile Communication (GSM) Li-Hsing Yen National University of Kaohsiung GSM System Architecture Um (ME/SIM) C E C PSTN, ISDN, PSPDN, CSPDN A-bis A F A-bis C B BTS BSS BSC HLR VLR EIR
More informationPW1 Monitoring a GSM network with a trace mobile
LPRO WireLess Network and security PW1 Monitoring a GSM network with a trace mobile Module GSM MOBILE LPRO 2012-13 Experimental set-up: 1. SAGEM OT230/OT260 Trace Mobile and charger 2. GSM antenna and
More informationMobile Computing. Basic Call Calling terminal Network Called terminal 10/25/14. Public Switched Telephone Network - PSTN. CSE 40814/60814 Fall 2014
Mobile Computing CSE 40814/60814 Fall 2014 Public Switched Telephone Network - PSTN Transit switch Transit switch Long distance network Transit switch Local switch Outgoing call Incoming call Local switch
More information2G/3G Mobile Communication Systems
2G/3G Mobile Communication Systems Winter 2012/13 Integrated Communication Systems Group Ilmenau University of Technology Outline 2G Review: GSM Services Architecture Protocols Call setup Mobility management
More informationMobile Communications
October 21, 2009 Agenda Topic 2: Case Study: The GSM Network 1 GSM System General Architecture 2 GSM Access network. 3 Traffic Models for the Air interface 4 Models for the BSS design. 5 UMTS and the path
More informationMultiple Access Techniques
Chapter 8 Multiple Access Techniques Multiple access techniques are used to allow a large number of mobile users to share the allocated spectrum in the most efficient manner. As the spectrum is limited,
More informationPhase coherency of CDMA caller location processing based on TCXO frequency reference with intermittent GPS correction
Phase coherency of CDMA caller location processing based on TCXO frequency reference with intermittent GPS correction Dingchen Lu, Alfredo Lopez, Surendran K. Shanmugam, John Nielsen and Gerard Lachapelle
More informationLTE PHY Fundamentals Roger Piqueras Jover
LTE PHY Fundamentals Roger Piqueras Jover DL Physical Channels - DL-SCH: The DownLink Shared CHannel is a channel used to transport down-link user data or Radio Resource Control (RRC) messages, as well
More informationMASTER'S THESIS. Improved Power Control for GSM/EDGE
MASTER'S THESIS 2005:238 CIV Improved Power Control for GSM/EDGE Fredrik Hägglund Luleå University of Technology MSc Programmes in Engineering Department of Computer Science and Electrical Engineering
More informationSPYTEC 3000 The system for GSM communication monitoring
SPYTEC 3000 The system for GSM communication monitoring The SPYTEC 3000 system is intended for passive (if system encryption is absent of if A5.2 encryption is used) or semi-active (if A5.1 encryption
More informationGSM BASICS GSM HISTORY:
GSM BASICS GSM HISTORY: In 1982 the Nordic PTTs sent a proposal to CEPT (Conference of European Postal & telegraph Administration) to study and to improve digital cellular technology by forming a team
More informationGSM GSM 05.02 TECHNICAL May 1996 SPECIFICATION Version 5.0.0
GSM GSM 05.02 TECHNICAL May 1996 SPECIFICATION Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-020502Q ICS: 33.060.50 Key words: Digital cellular telecommunications system, Global System for Mobile
More informationHello viewers, welcome to today s lecture on cellular telephone systems.
Data Communications Prof. A. Pal Department of Computer Science & Engineering Indian Institute of Technology, Kharagpur Lecture minus 31 Cellular Telephone Systems Hello viewers, welcome to today s lecture
More informationAnalysis of GSM Network for Different Transmission Powers
Analysis of GSM Network for Different Transmission Powers Mandeep Singh 1, Supreet Kaur 2 1,2 (Department of Electronics and Communication Engineering, Punjabi University, Patiala, India) Abstract: To
More informationETSI TS 100 912 V8.4.0 (2000-08)
TS 100 912 V8.4.0 (2000-08) Technical Specification Digital cellular telecommunications system (Phase 2+); Radio subsystem synchronization (GSM 05.10 version 8.4.0 Release 1999) GLOBAL SYSTEM FOR MOBILE
More informationGSM Frequency Planning with Band Segregation for the Broadcast Channel Carriers
GSM Frequency Planning with Band Segregation for the Broadcast Channel Carriers F. Galliano (1), N.P. Magnani (1), G. Minerva (1), A. Rolando (2), P. Zanini (3) (1) CSELT - Via G. Reiss Romoli, 274 - Torino
More informationCS 8803 - Cellular and Mobile Network Security: CDMA/UMTS Air Interface
CS 8803 - Cellular and Mobile Network Security: CDMA/UMTS Air Interface Hank Carter Professor Patrick Traynor 10/4/2012 UMTS and CDMA 3G technology - major change from GSM (TDMA) Based on techniques originally
More informationGSM Testers for Rent and Sale
GSM Testers for Rent and Sale ^ Introduction... 2 4202S Mobile Service Tester GSM Module Tester... 3 4107S Mobil Phone Tester... 4 Sales and rent information... 6 GSM tester for sale and to rent Page 1
More informationVoice services over Adaptive Multi-user Orthogonal Sub channels An Insight
TEC Voice services over Adaptive Multi-user Orthogonal Sub channels An Insight HP 4/15/2013 A powerful software upgrade leverages quaternary modulation and MIMO techniques to improve network efficiency
More informationLecture 18: CDMA. What is Multiple Access? ECE 598 Fall 2006
ECE 598 Fall 2006 Lecture 18: CDMA What is Multiple Access? Multiple users want to communicate in a common geographic area Cellular Example: Many people want to talk on their cell phones. Each phone must
More informationExperiences in positioning and sensor network applications with Ultra Wide Band technology
Experiences in positioning and sensor network applications with Ultra Wide Band technology WAMS LANGATTOMUUDESTA UUTTA BISNESTÄ Timo Lehikoinen VTT Technical Research Centre of Finland 10/14/2013 2 Contents
More informationINTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA
COMM.ENG INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA 9/6/2014 LECTURES 1 Objectives To give a background on Communication system components and channels (media) A distinction between analogue
More informationMobile Communications: Satellite Systems
Mobile Communications: Satellite Systems Mobile Communication: Satellite Systems - Jochen Schiller http://www.jochenschiller.de 1 History of satellite communication 1945 Arthur C. Clarke publishes an essay
More informationUsing R&S FSW for Efficient Measurements on Multi- Standard Radio Base Stations Application Note
Using R&S FSW for Efficient Measurements on Multi- Standard Radio Base Stations Application Note Products: R&S FSW This application note introduces the Multi- Standard Radio Analyzer function of the R&S
More informationThe Global System for Mobile communications (GSM) Overview
The Global System for Mobile communications (GSM) Overview GSM D-AMPS Japan Digital PCS 1900 DCS 1800 CDMA Digital Cellular Systems World-wide Multiple Access Techniques In the GSM/DCS mobile system each
More informationHow To Understand Cellular Communications
Definition Cellular Communications A cellular mobile communications system uses a large number of low-power wireless transmitters to create cells the basic geographic service area of a wireless communications
More informationcommunication over wireless link handling mobile user who changes point of attachment to network
Wireless Networks Background: # wireless (mobile) phone subscribers now exceeds # wired phone subscribers! computer nets: laptops, palmtops, PDAs, Internet-enabled phone promise anytime untethered Internet
More informationWireless Phones, GPS and Data Applications
Wireless Phones, GPS and Data Applications James M. Conrad and Santosh Kolenchery Ericsson, Inc., 7001 Development Drive, Research Triangle Park, NC 27709 (919) 472-6178, james.conrad@ericsson.com (919)
More informationSol: Optical range from λ 1 to λ 1 +Δλ contains bandwidth
1. Use Figure 3.47 and Figure 3.50 to explain why the bandwidth of twisted-wire pairs and coaxial cable decreases with distance. Figure 3.47 figure 3.50 sol: The bandwidth is the range of frequencies where
More informationWireless systems GSM 2015-05-04. Simon Sörman
Wireless systems GSM 2015-05-04 Simon Sörman Contents 1 Introduction... 1 2 Channels... 2 2.1 Physical channels... 2 2.1.1 FDMA/TDMA... 2 2.1.2 Bursts... 3 2.2 Logical channels... 3 2.3 Mapping of logical
More informationERLANG CAPACITY EVALUATION IN GSM AND CDMA CELLULAR SYSTEMS
ERLANG CAPACITY EVALUATION IN GSM AND CDMA CELLULAR SYSTEMS Ch Usha Kumari 1, G Sasi Bhushana Rao and R Madhu Department of Electronics and Communication Engineering, Andhra University College of Engineering,
More information2G Mobile Communication Systems
2G Mobile Communication Systems 2G Review: GSM Services Architecture Protocols Call setup Mobility management Security HSCSD GPRS EDGE References Jochen Schiller: Mobile Communications (German and English),
More informationRADIUS. Brief brochure. Product Purpose
Product Purpose The Product is designed for searching, intercepting, registering and analyzing of communication sessions as well as service information circulating in cellular GSM networks without encryption
More informationInterference Analysis of a Total Frequency Hopping GSM Cordless Telephony System 1
Interference Analysis of a Total Frequency Hopping GSM Cordless Telephony System 1 Jürgen Deißner, André Noll Barreto, Ulrich Barth*, and Gerhard Fettweis Endowed Chair for Mobile Communications Systems
More informationIntroduction to EDGE. 2.1 What Is EDGE?
2 Introduction to EDGE This chapter is the first of a series dedicated to EDGE. It introduces the different EDGE concepts from a global point of view, explaining how they have been introduced into the
More informationGSM BTS Development & GSM/EDGE Receiver based on FDE
GSM BTS Development & GSM/EDGE Receiver based on FDE Dinakar. P dinakarp@tenet.res.in Dept. of Electrical Engineering Indian Institute of Technology - Madras ComNet - 2007 Introduction: GSM Global System
More informationGlobal System for Mobile Communication (GSM)
Global System for Mobile Communication (GSM) Definition Global system for mobile communication (GSM) is a globally accepted standard for digital cellular communication. GSM is the name of a standardization
More informationTracking And Positioning Of Mobile Systems In Telecommunication Networks
Tracking And Positioning Of Mobile Systems In Telecommunication Networks Sourabh Pawade*, Pushkar Masodkar**, Prof Pankaj Hedaoo*** 3 rd year, Electronics and Telecommunicaton, G.H. Raisoni College of
More informationCHAPTER 8 MULTIPLEXING
CHAPTER MULTIPLEXING 3 ANSWERS TO QUESTIONS.1 Multiplexing is cost-effective because the higher the data rate, the more cost-effective the transmission facility.. Interference is avoided under frequency
More informationChapters 1-21 Introduction to Wireless Communication Systems
Chapters 1-21 Introduction to Wireless Communication Systems Yimin Zhang, Ph.D. Department of Electrical & Computer Engineering Villanova University http://yiminzhang.com/ece8708 Yimin Zhang, Villanova
More informationTCOM 370 NOTES 99-12 LOCAL AREA NETWORKS AND THE ALOHA PROTOCOL
1. Local Area Networks TCOM 370 NOTES 99-12 LOCAL AREA NETWORKS AND THE ALOHA PROTOCOL These are networks spanning relatively short distances (e.g. within one building) for local point-to-point and point-to-multipoint
More informationMultiplexing on Wireline Telephone Systems
Multiplexing on Wireline Telephone Systems Isha Batra, Divya Raheja Information Technology, Dronacharya College of Engineering Farrukh Nagar, Gurgaon, India ABSTRACT- This Paper Outlines a research multiplexing
More informationBasic Network Design
Frequency Reuse and Planning Cellular Technology enables mobile communication because they use of a complex two-way radio system between the mobile unit and the wireless network. It uses radio frequencies
More informationGSM Architecture Training Document
Training Document TC Finland Nokia Networks Oy 1 (20) The information in this document is subject to change without notice and describes only the product defined in the introduction of this documentation.
More informationCARLETON UNIVERSITY Department of Systems and Computer Engineering. SYSC4700 Telecommunications Engineering Winter 2014. Term Exam 13 February 2014
CARLETON UNIVERSITY Department of Systems and Computer Engineering SYSC4700 Telecommunications Engineering Winter 2014 Term Exam 13 February 2014 Duration: 75 minutes Instructions: 1. Closed-book exam
More informationSystem Design in Wireless Communication. Ali Khawaja
System Design in Wireless Communication Ali Khawaja University of Texas at Dallas December 6, 1999 1 Abstract This paper deals with the micro and macro aspects of a wireless system design. With the growing
More informationΠαρουσιάσεις για το Μάθημα Ασύρματων και Κινητών Τηλεπικοινωνιών του ΔΜΠΣ στο ΕΚΠΑ
Παρουσιάσεις για το Μάθημα Ασύρματων και Κινητών Τηλεπικοινωνιών του ΔΜΠΣ στο ΕΚΠΑ hstellakis@gmail.com Αθήνα, 2015 1 PART I Introduction to Wireless Communications 2 What is Wireless? Wireless operations
More information