Mobile Communications

Size: px
Start display at page:

Download "Mobile Communications"

Transcription

1 November 17, 2009

2 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 towards 4G 6 UMTS cell design

3 Study Case for GSM A very important point in the study of a GSM system is the the network planning which is divided into Radio Network Planning,Access Network Planning and Core Network planning. However there is another important point which is to know about how the network works. We will focus on: Interfaces Traffic Cases Core Network Configurations

4 UM Interface: Radio The Um interface is the interface between the MS and the BTS. Here the communication is carried out using radio waves. The frequencies band for GSM are shown in the figure.

5 UM Interface: Radio As you remember in the GSM system the BW is 200 KHz then we have: 124 pairs of carriers in the GSM 900 band 374 pairs of carriers in the GSM 1800 band pairs of carriers in the GSM 1900 band Each carrier is divided into eight Times Slots (TS). A TS has a duration of 3/5200 seconds (577 ms). Eight TSs form a TDMA frame, with approximately 4.62 ms duration. Note: We are in a synchronous system, so the frames has to be aligned in the uplink and in the downlink;

6 UM Interface: Radio The following figure shows the Um frame. This structure, and the synchronous feature of the GSM system makes that if the mobile wants to use the same time slot for the uplink and the downlink it has to transmit and to receive simultaneously. To avoid this, the uplink frame is delayed three time slots (TS)

7 Um Interface: Radio

8 Frames Structure I think that in this point is important to make a break to study the GSM Frame Structure As you can suppose the synchronous feature of the system does not end in the basic frame. At higher levels the frames are grouped into Signalling Multiframes (MF51) or Traffic Multiframes (MF26) depending on the content of the time slots. 26 MF51 or 51 MF26 compound a Superframe Superframes form a Hiperframe which is the maximum period. Note that a Hiperframe has = frames, which means 1566 s. This structure is performed in this way to handle with the different speed of the channels.

9 Um Interface: Radio

10 Um Interface: Logical Channels The Radio Interface between the MS and the BTS is structured using logical channels. The figure shows the division of the channels.

11 Um Interface: Logical Channels Logical channels can be separated into two categories: Traffic and signaling/control channels. There are two forms of Traffic CHannels (TCH): 1 Full rate TCH (TCH/F). 2 Half rate TCH (TCH/H)). Signaling channels are subdivided into three categories: 1 Broadcast CHannels, BCH 2 Common Control CHannels, CCCH 3 Dedicated Control CHannels, DCCH

12 Um Interface: Broadcast Channels Frequency Correction CHannel (FCCH): Allow the MS to synchronize to the frequency. Only downlink on carrier 0 in TS 0. Synchronization CHannel (SCH)The MS needs to synchronize to the time-structure within this particular cell. Listening to the SCH, the MS receives information about the frame number of the chosen BTS. Only downlink on carrier 0 TS 0. Broadcast Control CHannel (BCCH)The MS must receive some general information concerning the cell in order to start roaming, waiting for calls to arrive or making calls. Only downlink on carrier 0 in TS 0.

13 Um Interface: Common Control Channels Paging CHannel (PCH) At certain time intervals the MS listens to the PCH to check if the network wants to make contact with the MS for an incoming call or an incoming short message. Is downlink on TS0. Random Access CHannel (RACH) When the MS is being paged, it replies by requesting a signaling channel on the RACH. RACH can also be used if the MS wants to contact the network. RACH is transmitted uplink on TS0 Access Grant CHannel (AGCH) To grant the access to the mobile, the networks assigns a signaling channel (the Stand alone Dedicated Control CHannel, SDCCH) to the MS. This assignment is performed on the AGCH. AGCH is transmitted downlink on TS0.

14 Um Interface: Dedicated Control Channels Stand alone Dedicated Control CHannel (SDCCH) The call set-up procedure is performed on this channel as well as all the signalling over the connection done by the MS and the BTS SDCCH is transmitted both uplink and downlink. Slow Associated Control CHannel (SACCH) The SACCH is associated with SDCCH or TCH (i.e. sent on the same physical channel). On the uplink, the MS sends averaged measurements on its own BTS (signal strength and quality) and neighboring BTSs (signal strength). On the downlink, the MS receives information concerning the transmitting power to use and instructions on the timing advance. SACCH is transmitted both uplink and downlink. Fast Associated Control CHannel (FACCH) If a handover is required the FACCH is used. FACCH works in stealing mode meaning that one 20 ms segment of speech is exchanged for signaling information necessary for the handover.

15 Um Interface: Channel Combinations Only certain combinations of logical channels are permitted according to the GSM recommendations. 1 TCH/F + FACCH/F + SACCH/TF 2 TCH/H(0.1) + FACCH/H(0.1) + SACCH/TH(0.1) 3 TCH/H(0) + FACCH/H(0) + SACCH/TH(0) + TCH/H(1) 4 FCCH + SCH + BCCH + CCCH 5 FCCH + SCH + BCCH + CCCH + SDCCH/4(0...3) + SACCH/C 4(0...3) 6 BCCH + CCCH 7 SDCCH/8(0...7) + SACCH/C 8(0...7) item Where CCCH = PCH + AGCH + RACH

16 Um Interface: Channel Combinations, FCCH + SCH + BCCH + CCCH

17 Um Interface: Channel Combinations, SDCCH + SACCH

18 Um Interface: Channel Combinations, SDCCH + SACCH

19 Um Interface: Protocol Stack Our next step is to analyze the protocol stack in the interfaces of the Access Radio Network Note that as it is shown in the figure, each interfaces has two faces, and the functions may not be the same in both sides.

20 Um Interface: Um Air Interface Now from the side of the Mobile Station

21 Um Interface: Um Air Interface Now from the side of the Base Station

22 Abis Interface: Introduction It is the interface between the BTS and the BSC. The physical level is implemented by 2Mbps links following the recommendation G.703 of the GSM. The links are composed by 32 channels of 64 Kbps. There are only three feasible configurations. 1 BTS with a single TRX. 2 BTS with several TRX and a single link to the BSC 3 BTS with several TRX each one with a particular link to the BSC.

23 Abis Interface: Channels There are two types of channels in the Abis Interface. Communication Channels 1 Traffic Channels: With speeds of 8, 16 or 64 Kbps, they carry voice or data of the corresponding traffic channel. Considering that the TCH has a maximum speed of 13 Kbps, with four channels, there is a remaining capacity in the digital circuit of 12 Kbps. This remaining capacity is used for synchronization between the BTS and a network element named TRAU. 2 Signalling Channels: With Speeds of 16, 32 or 64 Kps, they carry user signalling information of MS, BTS and BSC.

24 Abis Interface: Channels For the signalling in the Abis interface the protocol of layer 2, LAPD. In each LAPD message, in the addressing field there is the BTS the message refers to. The specification defines the following logical links. 1 Radio Signalling Link (RSL): Used for message interchange about the traffic management procedures between the MS and the network. There is a RSL per TRX of the BTS. 2 Operation and Management Link (OML): Used for management information exchange. There is a OML per TRX and BCF. 3 Layer 2 Management Link: It is the management link of layer 2. There is a OML per TRX and BCF.

25 Abis Interface: Abis from the BTS

26 Abis Interface: Abis from the BSC

27 Conclusion At this point we have ended a very hard part that deals with the inner and deeper part of the GSM access network, protocols, channels and frame structure Our next step is dedicated to try to understand how the network works in a limited set of important scenarios.

GSM: PHYSICAL & LOGICAL CHANNELS

GSM: 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 information

GSM LOGICAL CHANNELS

GSM 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 information

GSM Channels. Physical & Logical Channels. Traffic and Control Mutltiframing. Frame Structure

GSM 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 information

GSM GSM 05.01 TECHNICAL May 1996 SPECIFICATION Version 5.0.0

GSM 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 information

Global System for Mobile Communication (GSM)

Global 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 information

GSM System. Global System for Mobile Communications

GSM 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 information

GSM - Global System for Mobile Communications

GSM - 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 information

Frequency [MHz] ! " # $ %& &'( " Use top & bottom as additional guard. guard band. Giuseppe Bianchi DOWNLINK BS MS 890.4 UPLINK MS BS 890.2.

Frequency [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 information

GSM Radio Part 1: Physical Channel Structure

GSM 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 information

GSM GPRS. Course requirements: Understanding Telecommunications book by Ericsson (Part D PLMN) + supporting material (= these slides)

GSM GPRS. Course requirements: Understanding Telecommunications book by Ericsson (Part D PLMN) + supporting material (= these slides) GSM Example of a PLMN (Public Land Mobile Network) At present most successful cellular mobile system (over 200 million subscribers worldwide) Digital (2 nd Generation) cellular mobile system operating

More information

GSM GSM 05.02 TECHNICAL May 1996 SPECIFICATION Version 5.0.0

GSM 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 information

9.1 Introduction. 9.2 Roaming

9.1 Introduction. 9.2 Roaming 9 Location Updating Objectives After this chapter the student will: be able to define the concepts of roaming and location updating. be able to name the different types of location updating and why they

More information

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 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 information

MRN 6 GSM part 1. Politecnico di Milano Facoltà di Ingegneria dell Informazione. Mobile Radio Networks Prof. Antonio Capone

MRN 6 GSM part 1. Politecnico di Milano Facoltà di Ingegneria dell Informazione. Mobile Radio Networks Prof. Antonio Capone Politecnico di Milano Facoltà di Ingegneria dell Informazione MRN 6 GSM part 1 Mobile Radio Networks Prof. Antonio Capone A. Capone: Mobile Radio Networks 1 General characteristics of the system A. Capone:

More information

Global System for Mobile Communications (GSM)

Global 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 information

GSM Air Interface & Network Planning

GSM 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 information

GSM BASICS GSM HISTORY:

GSM 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 information

CS 8803 - Cellular and Mobile Network Security: GSM - In Detail

CS 8803 - Cellular and Mobile Network Security: GSM - In Detail CS 8803 - Cellular and Mobile Network Security: GSM - In Detail Professor Patrick Traynor 9/27/12 Cellular Telecommunications Architecture Background Air Interfaces Network Protocols Application: Messaging

More information

CS 8803 - Cellular and Mobile Network Security: CDMA/UMTS Air Interface

CS 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 information

How To Make A Cell Phone Network More Efficient

How To Make A Cell Phone Network More Efficient Cellular Network Planning and Optimization Part V: GSM Jyri Hämäläinen, Communications and Networking Department, TKK, 18.1.2008 GSM Briefly 2 General GSM was the first digital cellular system. GSM was

More information

Implementation of Mobile Measurement-based Frequency Planning in GSM

Implementation 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 information

Ch 2.3.3 GSM PENN. Magda El Zarki - Tcom 510 - Spring 98

Ch 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 information

GSM Network Architecture, Channelisation, Signalling and Call Processing

GSM Network Architecture, Channelisation, Signalling and Call Processing GSM Network Architecture, Channelisation, Signalling and Call Processing Dr Bhaskar Ramamurthi Professor Department of Electrical Engineering IIT Madras Dr Bhaskar Ramamurthi GSM 1 Call Routing in Wireline

More information

The Global System for Mobile communications (GSM) Overview

The 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 information

Wireless systems GSM 2015-05-04. Simon Sörman

Wireless 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 information

Roadmap for Establishing Interoperability of Heterogeneous Cellular Network Technologies -3-

Roadmap for Establishing Interoperability of Heterogeneous Cellular Network Technologies -3- Roadmap for Establishing Interoperability of Heterogeneous Cellular Network Technologies -3- Hasni Neji Innov COM Lab, Higher School of Communications of Tunis, Sup Com University of Carthage, Tunis, Tunisia

More information

How To Test Gsm Cell Phone Network On A Cell Phone

How To Test Gsm Cell Phone Network On A Cell Phone G S M C E L L B R O A D C A S T S E RV I C E S E C U R I T Y A N A LY S I S arturo cedillo torres Department of Mathematics and Computer Science Eindhoven University of Technology Supervisors: Nicola Zannone

More information

-The equipment was limited to operate only within the boundaries of each country. -The market for each mo bile equipment was limited.

-The equipment was limited to operate only within the boundaries of each country. -The market for each mo bile equipment was limited. 1 History of GSM During the early 1980s, analog cellular telephone systems were experienced a very fast growth in Europe, particularly in Scandinavia and the United Kingdom, but also in France and Germany.

More information

Integration of Open-Source GSM Networks

Integration of Open-Source GSM Networks Integration of Open-Source GSM Networks Thomas A. Cooper Thesis submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree

More information

GSM Architecture and Interfaces

GSM Architecture and Interfaces GSM.05 Page 71 Monday, November 30, 1998 2:07 PM C H A P T E R 5 GSM Architecture and Interfaces 5.1 INTRODUCTION In this chapter we present an overview of the GSM as described in ETSI s recommendations.

More information

GSM GSM 05.08 TECHNICAL July 1996 SPECIFICATION Version 5.1.0

GSM 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 information

Using TEMS Pocket. Johan Montelius

Using TEMS Pocket. Johan Montelius Using TEMS Pocket Johan Montelius Introduction In this laboration you will get acquainted with the TEMS Pocket tool. You will examine both the Monaco network and a commercial network. Since this is your

More information

GSM GSM 08.52 TECHNICAL December 1996 SPECIFICATION Version 5.0.0

GSM GSM 08.52 TECHNICAL December 1996 SPECIFICATION Version 5.0.0 GSM GSM 08.52 TECHNICAL December 1996 SPECIFICATION Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-030852Q ICS: 33.020 Key words: Digital cellular telecommunications system, Global System for Mobile

More information

RELEASE NOTE. Recc)mmendation GSM 05.08. Previously distributed version :3.7.0 ( Updated Release 1/90

RELEASE NOTE. Recc)mmendation GSM 05.08. Previously distributed version :3.7.0 ( Updated Release 1/90 ETSI /TC SMG Release by : ETSI /PT 12 Release date : December 1995 RELEASE NOTE Recc)mmendation GSM 05.08 Radio Sub - system Link Control Previously distributed version :3.7.0 ( Updated Release 1/90 New

More information

TSG-RAN Meeting #7 Madrid, Spain, 13 15 March 2000 RP-000034. Title: Agreed CRs to TS 25.301. Agenda item: 6.3.3

TSG-RAN Meeting #7 Madrid, Spain, 13 15 March 2000 RP-000034. Title: Agreed CRs to TS 25.301. Agenda item: 6.3.3 TSG-RAN Meeting #7 Madrid, Spain, 13 15 March 2000 RP-000034 Title: Agreed CRs to TS 25.301 Source: TSG-RAN WG2 Agenda item: 6.3.3 Doc-1st- Spec CR Rev Subject Cat Version Versio R2-000213 25.301 032 Correction

More information

The Network Layer Layer 3

The Network Layer Layer 3 CHAPTER 7 The Network Layer Layer 3 Now it is time to hijack the GSM freight train, to see what is inside, to break into the time-slotted boxcars and spill the drums of unknown acids and solvents on the

More information

The GSM and GPRS network T-110.300/301

The 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 information

Mobile Communications Chapter 4: Wireless Telecommunication Systems

Mobile Communications Chapter 4: Wireless Telecommunication Systems Mobile Communications Chapter 4: Wireless Telecommunication Systems Market GSM Overview Services Sub-systems Components GPRS DECT Not a part if this course! TETRA Not a part if this course! w-cdma (rel

More information

Dimensioning, configuration and deployment of Radio Access Networks. Lecture 2.1: Voice in GSM

Dimensioning, 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 information

GSM VOICE CAPACITY EVOLUTION WITH VAMOS Strategic White Paper

GSM VOICE CAPACITY EVOLUTION WITH VAMOS Strategic White Paper GSM VOICE CAPACITY EVOLUTION WITH VAMOS Strategic White Paper Table of contents VAMOS increases your GSM voice capacity at minimum investment / 1 Take the full benefit of VAMOS / 1 Standard aspects / 1

More information

Dimensioning and Deployment of GSM Networks

Dimensioning and Deployment of GSM Networks Case Study: Dimensioning and Deployment of GSM Networks Acknowledgement: some of these slides are based on originals and information kindly provided by Ian O Shea of Altobridge Ltd. 2011 1 GSM System Architecture

More information

Global System for Mobile (GSM) Global System for Mobile (GSM)

Global System for Mobile (GSM) Global System for Mobile (GSM) Global System for Mobile (GSM) David Tipper Associate Professor Graduate Program of Telecommunications and Networking University of Pittsburgh Telcom 2720 Slides 8 Based largely on material from Jochen

More information

Support for Cell Broadcast as Global Emergency Alert System

Support for Cell Broadcast as Global Emergency Alert System Rapport LITH-ITN-EX--07/021--SE Support for Cell Broadcast as Global Emergency Alert System Karin Axelsson Cynthia Novak 2007-06-19 Department of Science and Technology Linköpings universitet SE-601 74

More information

Monitoring for Handover from TDD to GSM

Monitoring 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 information

Yu.M. Tulyakov, D.Ye. Shakarov, A.A. Kalashnikov. Keywords: Data broadcasting, cellular mobile systems, WCDMA, GSM.

Yu.M. Tulyakov, D.Ye. Shakarov, A.A. Kalashnikov. Keywords: Data broadcasting, cellular mobile systems, WCDMA, GSM. Аnalysis of data broadcasting in modern cellular mobile systems of ground radio communications Yu.M. Tulyakov, D.Ye. Shakarov, A.A. Kalashnikov At the analysis of channel formation in WCDMA networks the

More information

Positioning in GSM. Date: 14th March 2003

Positioning in GSM. Date: 14th March 2003 Positioning in GSM Date: 14th March 2003 Overview of seminar Potential applications in cellular network Review of localization system and techniques Localization in GSM system Progress of the project with

More information

Wireless Cellular Networks: 1G and 2G

Wireless 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 information

PART 4 GSM Radio Interface

PART 4 GSM Radio Interface PRT 4 GSM Radio Interface Lecture 4. Physical channels Frequency [MHz] 960 OWNLINK BS MS 95 95 UPLINK MS BS 890 GSM Radio Spectrum 890.4 890.2 guard band 2 x 25 Mhz band uplex spacing: 45 MHz 24 carriers

More information

Telecommunication Systems (GSM) Mobile Communications (Ch 4) John Schiller, Addison-Wesley

Telecommunication Systems (GSM) Mobile Communications (Ch 4) John Schiller, Addison-Wesley Telecommunication Systems (GSM) Mobile Communications (Ch 4) John Schiller, Addison-Wesley 1 Telecommunication System Wireless extension of traditional PSTN Telephony architecture (NOT computer net) Many

More information

GSM Network and Services

GSM 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 information

How To Understand The Power Of A Cell Phone Network

How To Understand The Power Of A Cell Phone Network TS 25.225 V3.12.0 (2003-06) Technical Specification 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Physical layer Measurements (TDD) (Release 1999) The present

More information

How To Understand The Gsm And Mts Mobile Network Evolution

How 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 information

Chapter 10 ( PART-1) Existing Wireless Systems

Chapter 10 ( PART-1) Existing Wireless Systems Chapter 10 ( PART-1) Existing Wireless Systems 1 Outline AMPS IS-41 GSM PCS 2 AMPS 3 AMPS (Advanced Mobile Phone System) Design goals of AMPS Characteristics of AMPS Channel usage in AMPS AMPS frequency

More information

Pocket Guide for Fundamentals and GSM Testing

Pocket Guide for Fundamentals and GSM Testing Pocket Guide for Fundamentals and GSM Testing Publisher: Author: Wandel & Goltermann GmbH & Co Elektronische Meûtechnik P. O. Box 12 62 D-72795 Eningen u.a. Germany e-mail: solutions@wg.com http://www.wg.com

More information

2G/3G Mobile Communication Systems

2G/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 information

NETWORK AND RF PLANNING

NETWORK AND RF PLANNING NETWORK AND RF PLANNING Introduction Achieving maximum capacity while maintaining an acceptable grade of service and good speech quality is the main issue for the network planning. Planning an immature

More information

3GPP LTE Channels and MAC Layer

3GPP LTE Channels and MAC Layer 3GPP LTE s and MAC Layer 2009 Inc. All Rights Reserved. LTE MAC Layer Functions Mapping between Transparent and Logical s Error Correction Through Hybrid ARQ MAC Priority Handling with Dynamic Scheduling

More information

NAVAL POSTGRADUATE SCHOOL THESIS

NAVAL POSTGRADUATE SCHOOL THESIS NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS SOFTWARE-DEFINED RADIO GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS TRANSMITTER DEVELOPMENT FOR HETEROGENEOUS NETWORK VULNERABILITY TESTING by Carson C.

More information

Mobile Communications

Mobile 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 information

Attenuation (amplitude of the wave loses strength thereby the signal power) Refraction Reflection Shadowing Scattering Diffraction

Attenuation (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 information

Optimization. Log File Analysis GSM

Optimization. Log File Analysis GSM Optimization and Log File Analysis in GSM by Somer GOKSEL January 26, 2003 2 Contents 1 INTRODUCTION...04 1.1 PURPOSE and SCOPE of OPTIMIZATION... 04 1.2 OPTIMIZATION PROCESS... 05 1.2.1 PROBLEM ANALYSIS...

More information

FIGURE 12-1 Original Advanced Mobile Phone Service (AMPS) frequency spectrum

FIGURE 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 information

PW1 Monitoring a GSM network with a trace mobile

PW1 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 information

Cellular Network Organization. Cellular Wireless Networks. Approaches to Cope with Increasing Capacity. Frequency Reuse

Cellular 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 information

3GPP Wireless Standard

3GPP 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 information

RESOURCE ALLOCATION FOR INTERACTIVE TRAFFIC CLASS OVER GPRS

RESOURCE 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 information

Evaluating GSM A5/1 security on hopping channels

Evaluating GSM A5/1 security on hopping channels Evaluating GSM A5/1 security on hopping channels Bogdan Diaconescu v1.0 This paper is a practical approach on evaluating A5/1 stream cipher on a GSM hopping network air interface called Um. The end goal

More information

Appendix C GSM System and Modulation Description

Appendix 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 information

EPL 657 Wireless Networks

EPL 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 information

VAMOS Technology Introduction Application Note

VAMOS Technology Introduction Application Note VAMOS Technology Introduction Application Note R&S SMU200A R&S SMBV100A R&S AMU200A R&S CMW500 R&S FSQ R&S FSG R&S FSV R&S FSVR Existing GSM mobile communication systems have the potential to double voice

More information

GSM GSM 05.05 TECHNICAL March 1996 SPECIFICATION Version 5.0.0

GSM GSM 05.05 TECHNICAL March 1996 SPECIFICATION Version 5.0.0 GSM GSM 05.05 TECHNICAL March 1996 SPECIFICATION Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-020505Q ICS: 33.060.50 Key words: Digital cellular telecommunications system, Global System for Mobile

More information

MAP/C SEND ROUTING INFO FOR SM. Destination Mobile Number. Obtain the SS7 address of the MSC VLR currently serving the specified Mobile Number

MAP/C SEND ROUTING INFO FOR SM. Destination Mobile Number. Obtain the SS7 address of the MSC VLR currently serving the specified Mobile Number In this call flow we will look at how a terminating SMS is handled in GSM. Setting up a terminating SMS session is a multi-step process. (1) Interrogate the MSC to locate the subscriber (2)Setting SMS

More information

Mobile 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 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 information

Advanced Security and Mobile Networks

Advanced 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 information

Managing radio part of mobile networks under increased traffic

Managing radio part of mobile networks under increased traffic Managing radio part of mobile networks under increased traffic SANJIN NURBOJA BH Telecom Ltd, Sarajevo Obala KulinaBana 8, 71000 Sarajevo BOSNIA AND HERZEGOVINA sanjin.nurboja@bhtelecom.ba, www.bhtelecom.ba

More information

EETS 8316 Wireless Networks Fall 2013

EETS 8316 Wireless Networks Fall 2013 EETS 8316 Wireless Networks Fall 2013 Lecture: Cellular Overview: 3G and 4G http://lyle.smu.edu/~skangude/eets8316.html Dr. Shantanu Kangude skangude@lyle.smu.edu Third Generation Systems High-speed wireless

More information

Handover management in GSM cellular system

Handover management in GSM cellular system Handover management in GSM cellular system Jahangir khan School of computer science PAF-KIET, Pakistan Air Force Base korangi Creek Karachi 75190 Pakistan ABSTRACT Handover mechanism is extremely important

More information

DISCUSSION. Sophia-Antipolis, France August 16-20, 1999. Agenda item: 14.4 Golden Bridge Technology CPCH Delay Measurements for TS25.

DISCUSSION. Sophia-Antipolis, France August 16-20, 1999. Agenda item: 14.4 Golden Bridge Technology CPCH Delay Measurements for TS25. TSG RAN WG 2#6 Sophia-Antipolis, France August 16-20, 1999 TSGR2#6(99)802 Agenda item: 14.4 Source: Golden Bridge Technology Title: CPCH Delay Measurements for TS25.331, RRC Protocol Document for: Discussion

More information

CS263: Wireless Communications and Sensor Networks

CS263: 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 information

General Packet Radio Service (GPRS)

General Packet Radio Service (GPRS) General Packet Radio Service (GPRS) What is GPRS? GPRS (General Packet Radio Service) a packet oriented data service for IP and X.25 over GSM networks enables packet-switched services on the resources

More information

How To Improve Data Rates For Global Evolution (Edge)

How To Improve Data Rates For Global Evolution (Edge) EDGE: Enhanced Data Rates for GSM Evolution SIDDARTH WANDRE ID: 999-29-3194 CS 548: Broadband Networks ILLINOIS INSTITUTE OF TECHNOLOGY Abstract:- This paper gives an overview of the EDGE concept. It gives

More information

Module 5. Broadcast Communication Networks. Version 2 CSE IIT, Kharagpur

Module 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 information

VoIP-Kapazität im Relay erweiterten IEEE 802.16 System

VoIP-Kapazität im Relay erweiterten IEEE 802.16 System VoIP-Kapazität im Relay erweiterten IEEE 802.16 System 21. ComNets-Workshop Mobil- und Telekommunikation Dipl.-Ing. Karsten Klagges ComNets Research Group RWTH Aachen University 16. März 2012 Karsten Klagges

More information

Mobile Wireless Overview

Mobile Wireless Overview Mobile Wireless Overview A fast-paced technological transition is occurring today in the world of internetworking. This transition is marked by the convergence of the telecommunications infrastructure

More information

CDMA Network Planning

CDMA 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 information

GSM Frequency Planning with Band Segregation for the Broadcast Channel Carriers

GSM 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 information

COMPATIBILITY STUDY FOR UMTS OPERATING WITHIN THE GSM 900 AND GSM 1800 FREQUENCY BANDS

COMPATIBILITY 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 information

Role and Evolution of Radio Network Controllers

Role and Evolution of Radio Network Controllers 01001000100000110000001000001100 010010001000 Role and Evolution of Radio Network Controllers Pekka Varis SPRP501 Senior R&D Manager / Senior Specialist Nokia pekka.ju.varis@nokia.com Agenda Radio Network

More information

Cellular mobile communication is based on the. The Cellular Concept. GSM and PCNs. Moe Rahnema

Cellular mobile communication is based on the. The Cellular Concept. GSM and PCNs. Moe Rahnema GSM and PCNs Overview Of he GSM System and Protocol Architecture We can use GSM as a basic framework to define and develop the standards for handling the mobility-specific functions of next-generation

More information

Lecture 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 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 information

ETSI TS 100 912 V8.4.0 (2000-08)

ETSI 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 information

Keysight E1968A GSM/GPRS/EGPRS Test Application

Keysight E1968A GSM/GPRS/EGPRS Test Application Keysight E1968A GSM/GPRS/EGPRS Test Application For the E5515C/E wireless communications test set and the E1987A fast switching test application Technical Overview Accelerate production of high volume

More information

GSM Network and Services

GSM Network and Services GSM Network and Services GPRS - sharing of resources 1 What is the problem? Many data applications are very bursty in its traffic pattern: http, smtp, pop, telnet,... Why reserve physical resources at

More information

!!! "# $ % & & # ' (! ) * +, -!!. / " 0! 1 (!!! ' &! & & & ' ( 2 3 0-4 ' 3 ' Giuseppe Bianchi

!!! # $ % & & # ' (! ) * +, -!!. /  0! 1 (!!! ' &! & & & ' ( 2 3 0-4 ' 3 ' Giuseppe Bianchi !!! "# $ % & & # ' (! ) * +, -!!. / " 0! 1 (!!! ' &! & & & ' ( 2 3 0-4 ' 3 ' "#$!!% "&'! #&'!%! () *+,, 3 & 5 &,! #-!*! ' & '.! #%!* //!! & (0)/!&/, 6 5 /, "! First system: NMT-450 (Nordic Mobile Telephone)

More information

Let Me Answer That For You: Exploiting Broadcast Information in Cellular Networks

Let Me Answer That For You: Exploiting Broadcast Information in Cellular Networks Let Me Answer That For You: Exploiting Broadcast Information in Cellular Networks Nico Golde, Kévin Redon, and Jean-Pierre Seifert, Technische Universität Berlin and Deutsche Telekom Innovation Laboratories

More information

BTS Backhaul by Satellite

BTS Backhaul by Satellite BTS Backhaul by Satellite Improving QoS & Optimizing Bandwidth The Mobile Market is experiencing solid growth in emerging countries. As an illustration, GSMA predicts the number of connections in Africa

More information

Provides a communication link between MS and MSC; Manages DB for MS location. Controls user connection. Transmission.

Provides a communication link between MS and MSC; Manages DB for MS location. Controls user connection. Transmission. Provides a communication link between MS and MSC; Manages DB for MS location Controls user connection CM MM RR Transmission Several RR functions considered in previous part!"# Surprise! handover is part

More information

Wireless Telecommunication Systems GSM, GPRS, UMTS. GSM as basis of current systems Satellites and

Wireless Telecommunication Systems GSM, GPRS, UMTS. GSM as basis of current systems Satellites and Chapter 2 Technical Basics: Layer 1 Methods for Medium Access: Layer 2 Chapter 3 Wireless Networks: Bluetooth, WLAN, WirelessMAN, WirelessWAN Mobile Networks: Wireless Telecommunication Systems GSM, GPRS,

More information

Telesystem Innovations. LTE in a Nutshell: Protocol Architecture WHITE PAPER

Telesystem Innovations. LTE in a Nutshell: Protocol Architecture WHITE PAPER Telesystem Innovations LTE in a Nutshell: Protocol Architecture WHITE PAPER PROTOCOL OVERVIEW This whitepaper presents an overview of the protocol stack for LTE with the intent to describe where important

More information

A Knowledge-Based Model for Analyzing GSM Network Performance

A Knowledge-Based Model for Analyzing GSM Network Performance A Knowledge-Based Model for Analyzing GSM Network Performance Pasi Lehtimäki and Kimmo Raivio Helsinki University of Technology Laboratory of Computer and Information Science P.O. Box 5400, FIN-02015 HUT,

More information