Evolution of GSM in to 2.5G and 3G

Size: px
Start display at page:

Download "Evolution of GSM in to 2.5G and 3G"

Transcription

1 CMPE 477 Wireless and Mobile Networks Evolution of GSM in to 2.5G and 3G New Data Services for GSM CMPE 477 HSCSD GPRS 3G UMTS IMT2000 UMTS Architecture UTRAN Architecture

2 Data services in GSM I Data transmission standardized with only 9.6 kbit/s advanced coding allows 14,4 kbit/s not enough for Internet and multimedia applications HSCSD (High-Speed Circuit Switched Data) mainly software update bundling of several time-slots to get higher AIUR (Air Interface User Rate) (e.g., 57.6 kbit/s using 4 slots, 14.4 each) advantage: ready to use, constant quality, simple disadvantage: channels blocked for voice transmission AIUR [kbit/s] TCH/F4.8 TCH/F9.6 TCH/F

3 Data services in GSM II GPRS (General Packet Radio Service) Avoids the problems of HSCSD by packet switching Network providers charge on volume rather than duration One to 8 slots can be allocated per frame, no fixed assignment but on demand Maximum advantage: rate one 171.2kbps step towards but UMTS, more flexible disadvantage: more investment needed (new hardware) Available data rate depends on the current cell load: using free (idle) slots only if data packets ready to send Transfer rate depends on the capabilities of the MS, also the maximum number of slots per frame is limited Typical Class 10 device achieves a receiving rate of 53.6kbps and a sending rate of 26.8kbps All GPRS services can be used in parallel to conventional GSM services

4 GPRS network elements GSN (GPRS Support Nodes): GGSN and SGSN (Routers) GGSN (Gateway GSN) interworking unit between GPRS and PDN (Packet Data Networks; IP, X25) Performs address conversion, tunnels data Connected to IP networks SGSN (Serving GSN) supports the MS (location, billing, security-ciphering) the delivery of data packets from and to the mobile stations within its geographical service area GR (GPRS Register also called Gateway Location Register) user addresses, part of HLR, current SGSN, current VLR

5 GPRS architecture and interfaces SGSN G n MS BSS SGSN GGSN PDN U m G b G n G i MSC HLR/ GR VLR EIR

6 Towards 3G: UMTS and IMT-2000 Proposals for IMT-2000 (International Mobile Telecommunications) UMTS UWC-136, cdma2000, WP-CDMA UMTS (Universal Mobile Telecommunications System) from ETSI (European Proposal) UTRA (was: UMTS, now: Universal Terrestrial Radio Access): the radio interface requirements min. 144 kbit/s rural (goal: 384 kbit/s) min. 384 kbit/s suburban (goal: 512 kbit/s) up to 2 Mbit/s urban Should be compatible with GSM, IP and ISDN-based networks

7 IMT-2000 family As a single standard could not be found, the ITU standardized five groups of 3G Radio Access Technologies Interface for Internetworking IMT-2000 Core Network ITU-T GSM (MAP) ANSI-41 (IS-634) IP-Network Initial UMTS (R99 w/ FDD) Flexible assignment of Core Network and Radio Access IMT-2000 (3G) Radio Access ITU-R IMT-DS (Direct Spread) UTRA FDD (W-CDMA) 3GPP IMT-TC (Time Code) UTRA TDD (TD-CDMA); TD-SCDMA 3GPP IMT-MC (Multi Carrier) cdma2000 3GPP2 IMT-SC (Single Carrier) UWC-136 (EDGE) UWCC/3GPP IMT-FT (Freq. Time) DECT ETSI

8 Enhancements of GSM EDGE (Enhanced Data rates for GSM Evolution) 2.75G: GSM up to 384 kbit/s, using the same 200kHz wide carrier and the same frequencies Uses enhanced modulation techniques, 8PSK instead of GMSK CAMEL (Customized Application for Mobile Enhanced Logic) VHE (virtual Home Environment) for visiting subscribers services to be offered when a subscriber is roaming, like, for instance, no-prefix dialing QoS Aspects, several migration aspects

9 UMTS architecture (Release 99) UTRAN (UTRA Network) Cell level mobility Radio Network Subsystem (RNS) Encapsulation of all radio specific tasks (handover, resource management, etc.) UE (User Equipment) CN (Core Network) Inter system handover Gateways to other networks UE U u UTRAN I u CN

10 UMTS domains and interfaces I Home Network Domain Z u USIM Domain C u Mobile U u Access I u Equipment Network Domain Domain Serving Network Domain Y u Transit Network Domain Core Network Domain User Equipment Domain Infrastructure Domain User Equipment Domain Assigned to a single user in order to access UMTS services Infrastructure Domain Shared among all users Offers UMTS services to all accepted users

11 UMTS domains and interfaces II Universal Subscriber Identity Module (USIM) Functions for encryption and authentication of users Located on a SIM inserted into a mobile device, stores all user related data Mobile Equipment Domain Functions for radio transmission User interface for establishing/maintaining end-toend connections Access Network Domain Access network dependent functions

12 UMTS domains and interfaces III Core Network Domain Access network independent functions Serving Network Domain Network currently responsible for communication Home Network Domain Location and access network independent functions Transit Network Domain Necessary if the serving network cannot directly contact the home network domain

13 Spreading and scrambling of user data UMTS uses DS-CDMA Constant chipping rate of 3.84 Mchip/s Different user data rates supported via different spreading factors higher data rate: less chips per bit and vice versa User separation via unique, orthogonal scrambling codes users are not separated via orthogonal spreading codes much simpler management of codes: each station can use the same orthogonal spreading codes

14 Spreading Data The first step in a sender is spreading user data using orthogonal spreading codes. This separates the different data streams of a sender. These codes are called orthogonal variable spreading factor (OVSF) codes. Doubles a chipping sequence X with and without flipping the sign of the chips: X and X The spreading factor sf=n become sf=2n

15 OVSF coding 1,1,1,1 1,1 1,1,-1,-1 X,X X 1 X,-X 1,-1,1,-1 SF=n SF=2n 1,-1 1,-1,-1,1 1,1,1,1,1,1,1,1 1,1,1,1,-1,-1,-1,-1 1,1,-1,-1,1,1,-1,-1 1,1,-1,-1,-1,-1,1,1 1,-1,1,-1,1,-1,1,-1 1,-1,1,-1,-1,1,-1,1 1,-1,-1,1,1,-1,-1,1 1,-1,-1,1,-1,1,1, SF=1 SF=2 SF=4 SF=8

16 Spreading and Scrambling of user Data OVSF spreads the data streams but the spreading codes chosen in the senders can be the same After spreading all chip streams are added and scrambled. Scrambling does not further spread the chip sequence but XORs chips based on a code In the FDD mode, this code is unique for each sender and separates all senders In the TDD mode, the scrambling code is cell specific. data 1 data 2 data 3 data 4 data 5 spr. code 1 spr. code 2 spr. code 3 spr. code 1 spr. code 4 scrambling code 1 scrambling code 2 sender 1 sender 2

17 10 ms µs UMTS FDD frame structure Radio frame Time slot Pilot TFCI FBI TPC 2560 chips, 10 bits uplink DPCCH W-CDMA MHz uplink MHz downlink chipping rate: Mchip/s spreading: UL: 4-256; DL: µs µs Data uplink DPDCH 2560 chips, 10*2 k bits (k = 0...6) Data 1 TPC TFCI Data 2 Pilot downlink DPCH DPDCH DPCCH DPDCH DPCCH 2560 chips, 10*2 k bits (k = 0...7) FBI: Feedback Information TPC: Transmit Power Control TFCI: Transport Format Combination Indicator DPCCH: Dedicated Physical Control Channel DPDCH: Dedicated Physical Data Channel DPCH: Dedicated Physical Channel Slot structure NOT for user separation but synchronisation for periodic functions!

18 UTRA-FDD Channels Dedicated Physical Data Channel (DPDCH): Conveys user or signaling data. Spreading factor varies between 4 and 256 Data rates: 960 kbps(spreading factor 4), 480, 240, 120, 60, 30, 15kbps (spreading factor 256) Dedicated Physical Control Channel (DPCCH): Conveys control data for the physical channel Constant spreading factor, 256. Dedicated Physical Channel (DPCH): Multiplexes user and control data Spreading factors between 4 and 512 Data rates 6, 24, 51, 90, 210, 432, 912, and 1872kbps

19 UTRA-FDD Medium Access No collisions on the downlink: Only the Basestation sends Uplink: Nodes use slotted Aloha (15 random access slots) Access a slot by sending a preamble with the lowest transmission power If no acknowledgement is received, try another slot with the next transmission power level

20 UMTS TDD frame structure (burst type 2) 10 ms Radio frame µs Data 1104 chips Time slot Midample 256 chips 2560 chips Data 1104 chips GP Traffic burst GP: guard period 96 chips TD-CDMA 2560 chips per slot spreading: 1-16 symmetric or asymmetric slot assignment to UL/DL (min. 1 per direction) tight synchronisation needed simpler power control ( power control cycles/s)

21 UTRAN architecture RNS RNC: Radio Network Controller RNS: Radio Network Subsystem UE 1 Node B I ub I u RNC CN UE 2 Node B UTRAN comprises several RNSs UE 3 Node B can support FDD or TDD or both Node B I ub I ur RNC is responsible for handover decisions requiring signalingto the UE Node B RNC Cell offers FDD or TDD Node B RNS

22 RNC functions Admission control Congestion control Encryption/Decryption ATM Switching and Multiplexing Radio resource control Code allocation Handover control Management

23 B-Node B-node and User Equipment Power control to mitigate near-far effects Measuring connection qualities and signal strength Supports softer handover User equipment Power control, signal quality measurements, spreading, modulation, encryption and decryption, requesting services from the network Cooperates with RNC for handover

24 Core network: architecture BTS A bis BSS I u VLR Node BTS B BSC I u CS MSC GMSC AuC PSTN EIR HLR Node B GR I ub Node B Node B RNC RNS I u PS SGSN G n GGSN G i CN

25 Core network The Core Network (CN) and thus the Interface I u, too, are separated into two logical domains: Circuit Switched Domain (CSD) Circuit switched service incl. signaling Resource reservation at connection setup GSM components (MSC, GMSC, VLR), I u CS Packet Switched Domain (PSD) GPRS components (SGSN, GGSN) I u PS Release 99 uses the GSM/GPRS network and adds a new radio access! Helps to save a lot of money Much faster deployment

26 Handover Hard Handover: Similar to GSM, switching between different antennas or systems. Inter-frequency handover: Changing the carrier frequency Inter-system handover: Handover to and from GSM or to other IMT-2000 systems Soft handover: New mechanism in UMTS: With hard handoff, a definite decision is made on whether to handoff or not With soft handoff, a conditional decision is made on whether to hand off Available in the FDD mode

27 Soft handover UE Node B Node B RNC Multicasting of data via several physical channels UE can receive signals from up to three antennas which may belong to different node B s Uplink CN simultaneous reception of UE data at several Node Bs by splitting data Reconstruction of data at RNC Downlink Simultaneous transmission of data via different cells Different spreading codes in different cells

28 Soft Handover, Intra RNC RNS controlling the connection is called SRNS (Serving RNS) RNS offering additional resources (e.g., for soft handover) is called Drift RNS (DRNS) SRNC forwards data to its not B and to the DRNC SRNC combines both data streams and forwards to CN Node B SRNC CN UE I ub I ur I u Node B DRNC I ub

29 Example handover types in UMTS/GSM UE 1 Node B 1 RNC 1 3G MSC 1 UE 2 Node B 2 I ub I ur I u UE 3 Node B 3 RNC 2 3G MSC 2 UE 4 BTS BSC 2G MSC 3 A bis A Intra Node-B, intra RNC (Softer Handover): Between the antennas of a B-node Inter Node-B, intra RNC: RNC1 supports soft handover by combining and splitting data Inter RNC: Internal or external inter-rnc Inter MSC: Hard handover MSC2 takes over Inter system: Hard handover from 3G UMTS network to 2G GSM.

30 Review Terms HSCSD GPRS IMT-2000 UMTS EDGE CAMEL UTRA UTRAN OVSF code DS-CDMA UTRA-FDD UTRA-TDD Gateway GSN Serving GSN GPRS Register B-node RNC Hard Handover Soft Handover Softer Handover

Data Services in GSM HSCSD GPRS. GPRS Infrastructure Components

Data Services in GSM HSCSD GPRS. GPRS Infrastructure Components 4 4 Data Services in Data transmission in with only 9.6 kbit/s Advanced channel coding allows 14.4 kbit/s Still not enough for Internet access or even multimedia applications Thus: UMTS as 3G network :

More information

192620010 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] 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 information

Mobile Network Evolution Part 1. GSM and UMTS

Mobile Network Evolution Part 1. GSM and UMTS 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

1G to 4G. Overview. Presentation By Rajeev Bansal Director(Mobile-1) Telecommunication Engineering Centre

1G to 4G. Overview. Presentation By Rajeev Bansal Director(Mobile-1) Telecommunication Engineering Centre 1G to 4G Overview Presentation By Rajeev Bansal Director(Mobile-1) Telecommunication Engineering Centre Mobile Networks differentiated from each other by the word Generation 1G, 2G, 2.5G, 2.75G, 3G milestones

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

Mobile Computing. Basic Call Calling terminal Network Called terminal 10/25/14. Public Switched Telephone Network - PSTN. CSE 40814/60814 Fall 2014

Mobile 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 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

Performance Issues of TCP and MPEG-4 4 over UMTS

Performance Issues of TCP and MPEG-4 4 over UMTS Performance Issues of TCP and MPEG-4 4 over UMTS Anthony Lo A.Lo@ewi.tudelft.nl 1 Wiskunde end Informatica Outline UMTS Overview TCP and MPEG-4 Performance Summary 2 1 Universal Mobile Telecommunications

More information

2G Mobile Communication Systems

2G 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 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

EE 4105 Communication Engg-II Dr. Mostafa Zaman Chowdhury Slide # 1

EE 4105 Communication Engg-II Dr. Mostafa Zaman Chowdhury Slide # 1 EE 4105 Communication Engg-II Dr. Mostafa Zaman Chowdhury Slide # 1 1 Circuit-Switched Systems In a circuit-switched system, each traffic channel is dedicated to a user until its cell is terminated. Circuit

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

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 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

Handoff in GSM/GPRS Cellular Systems. Avi Freedman Hexagon System Engineering

Handoff in GSM/GPRS Cellular Systems. Avi Freedman Hexagon System Engineering Handoff in GSM/GPRS Cellular Systems Avi Freedman Hexagon System Engineering Outline GSM and GSM referemce model GPRS basics Handoffs GSM GPRS Location and Mobility Management Re-selection and routing

More information

PDF vytvořeno zkušební verzí pdffactory www.fineprint.cz UMTS

PDF vytvořeno zkušební verzí pdffactory www.fineprint.cz UMTS UMTS Generations of mobile systems Generation 1 (1980-1995) 2 (1992-2000) 2,5 (1999-2010) 3 (2004-20?) Names NMT (Nordic Mobile Telephone); 450 MHz, 900 MHz AMPS (Advance Mobile Telephone System); USA

More information

Chapter 6 Wireless and Mobile Networks

Chapter 6 Wireless and Mobile Networks Chapter 6 Wireless and Mobile Networks A note on the use of these ppt slides: We re making these slides freely available to all (faculty, students, readers). They re in PowerPoint form so you see the animations;

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

Wireless Cellular Networks: 3G

Wireless Cellular Networks: 3G Wireless Cellular Networks: 3G Raj Jain Washington University Saint Louis, MO 63131 Jain@cse.wustl.edu These slides are available on-line at: http://www.cse.wustl.edu/~jain/cse574-06/ 7-1 Overview Wireless

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

Chapter 3: WLAN-GPRS Integration for Next-Generation Mobile Data Networks

Chapter 3: WLAN-GPRS Integration for Next-Generation Mobile Data Networks Chapter 3: WLAN-GPRS Integration for Next-Generation Mobile Data Networks IEEE Wireless Communication, Oct. 2002 Prof. Yuh-Shyan Chen Department of Computer Science and Information Engineering National

More information

Mobile Communications TCS 455

Mobile 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 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

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

Mobility Management in UMTS

Mobility Management in UMTS Rheinisch-Westfälische Technische Hochschule Aachen Lehrstuhl für Informatik IV Prof. Dr. rer. nat. Otto Spaniol Mobility Management in UMTS Seminar: Datacommunication & Distributed Systems WS 2003/2004

More information

Pradipta Biswas Roll No. 04IT6007 M. Tech. (IT) School of Information Technology Indian Institute of Technology, Kharagpur

Pradipta Biswas Roll No. 04IT6007 M. Tech. (IT) School of Information Technology Indian Institute of Technology, Kharagpur Pradipta Biswas Roll No. 04IT6007 M. Tech. (IT) School of Information Technology Indian Institute of Technology, Kharagpur ABSTRACT W-CDMA (Wideband Code-Division Multiple Access), an ITU standard derived

More information

Mobility and cellular networks

Mobility and cellular networks Mobility and cellular s Wireless WANs Cellular radio and PCS s Wireless data s Satellite links and s Mobility, etc.- 2 Cellular s First generation: initially debuted in Japan in 1979, analog transmission

More information

Security Architecture in UMTS Third Generation Cellular Networks Tomás Balderas-Contreras René A. Cumplido-Parra

Security Architecture in UMTS Third Generation Cellular Networks Tomás Balderas-Contreras René A. Cumplido-Parra Security Architecture in UMTS Third Generation Cellular Networks Tomás Balderas-Contreras René A. Cumplido-Parra Reporte Técnico No. CCC-04-002 27 de febrero de 2004 Coordinación de Ciencias Computacionales

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

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

Global System for Mobile Communication Technology

Global System for Mobile Communication Technology Global System for Mobile Communication Technology Mobile Device Investigations Program Technical Operations Division DHS - FLETC GSM Technology Global System for Mobile Communication or Groupe Special

More information

Wireless Access of GSM

Wireless Access of GSM Wireless Access of GSM Project Report FALL, 1999 Wireless Access of GSM Abstract: Global System for Mobile communications (GSM) started to be developed by Europeans when the removal of many European trade

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

Cellular Network Organization

Cellular 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 information

Mobile Services (ST 2010)

Mobile Services (ST 2010) Mobile Services (ST 2010) Chapter 2: Mobile Networks Axel Küpper Service-centric Networking Deutsche Telekom Laboratories, TU Berlin 1 Mobile Services Summer Term 2010 2 Mobile Networks 2.1 Infrastructure

More information

LTE Overview October 6, 2011

LTE Overview October 6, 2011 LTE Overview October 6, 2011 Robert Barringer Enterprise Architect AT&T Proprietary (Internal Use Only) Not for use or disclosure outside the AT&T companies except under written agreement LTE Long Term

More information

Instituto Superior Técnico. Key aspects of the Access in 3 rd Generation Communications Networks

Instituto Superior Técnico. Key aspects of the Access in 3 rd Generation Communications Networks Universidade Técnica de Lisboa! Instituto Superior Técnico Key aspects of the Access in 3 rd Generation Communications Networks 1 The 3 rd Generation Networks The society is in the middle of the change

More information

GSM v. CDMA: Technical Comparison of M2M Technologies

GSM v. CDMA: Technical Comparison of M2M Technologies GSM v. CDMA: Technical Comparison of M2M Technologies Introduction Aeris provides network and data analytics services for Machine-to- Machine ( M2M ) and Internet of Things ( IoT ) applications using multiple

More information

operation, and their architectures.

operation, and their architectures. Chapter 1 ireless communications have become very pervasive. The number of mobile phones and wireless Internet users has increased significantly in recent years. Traditionally, first-generation wireless

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

Contents. Preface. Acknowledgement. About the Author. Part I UMTS Networks

Contents. Preface. Acknowledgement. About the Author. Part I UMTS Networks Contents Preface Acknowledgement About the Author Acronyms xv xxi xxiii xxv Part I UMTS Networks 1 Introduction 3 1.1 Mobile Telecommunication Networks and Computer Networks 4 1.2 Network Design Principles

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

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

Evolution of Mobile Communications: from 1G to 4G

Evolution of Mobile Communications: from 1G to 4G Evolution of Mobile Communications: from 1G to 4G Vasco Pereira and Tiago Sousa Department of Informatics Engineering of the University of Coimbra {vasco,tmas}@dei.uc.pt Abstract Today, mobile communications

More information

UMTS, WLAN and new Broadband Technologies. Standards and Technical Basics. Dr. Dietmar Dengler DFKI GmbH, UMTS-Doit

UMTS, WLAN and new Broadband Technologies. Standards and Technical Basics. Dr. Dietmar Dengler DFKI GmbH, UMTS-Doit UMTS, WLAN and new Broadband Technologies Standards and Technical Basics Dr. Dietmar Dengler DFKI GmbH, UMTS-Doit Standardisation ITU (International Telecommunication Union) defines concepts for IMT-2000

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

Mobile Networking Concepts and Protocols CNT 5517

Mobile Networking Concepts and Protocols CNT 5517 Mobile Networking Concepts and Protocols CNT 5517 Some slides are adapted from Dr. Dave Johnson Notes Dr. Sumi Helal, Ph.D. Professor Computer & Information Science & Engineering Department University

More information

The future of mobile networking. David Kessens

The future of mobile networking. David Kessens <david.kessens@nsn.com> The future of mobile networking David Kessens Introduction Current technologies Some real world measurements LTE New wireless technologies Conclusion 2 The future of mobile networking

More information

EDGE: Enhanced Data Rates for GSM Evolution

EDGE: Enhanced Data Rates for GSM Evolution 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

Advanced SIP Series: SIP and 3GPP

Advanced SIP Series: SIP and 3GPP Advanced SIP Series: SIP and 3GPP, Award Solutions, Inc Abstract The Session Initiation Protocol has been selected as the main signaling protocol of the Third Generation Partnership Projects IP Multimedia

More information

Wireless Mobile Telephony

Wireless Mobile Telephony Wireless Mobile Telephony The Ohio State University Columbus, OH 43210 Durresi@cis.ohio-state.edu http://www.cis.ohio-state.edu/~durresi/ 1 Overview Why wireless mobile telephony? First Generation, Analog

More information

Introduction to Cellular Networks: 1G/2G/3G

Introduction to Cellular Networks: 1G/2G/3G Introduction to Cellular Networks: 1G/2G/3G Raj Jain Washington University in Saint Louis Saint Louis, MO 63130 Jain@cse.wustl.edu Audio/Video recordings of this class lecture are available at: 14-1 Overview

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

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

Long-Term Evolution. Mobile Telecommunications Networks WMNet Lab

Long-Term Evolution. Mobile Telecommunications Networks WMNet Lab Long-Term Evolution Mobile Telecommunications Networks WMNet Lab Background Long-Term Evolution Define a new packet-only wideband radio with flat architecture as part of 3GPP radio technology family 2004:

More information

Delivery of Voice and Text Messages over LTE

Delivery of Voice and Text Messages over LTE Delivery of Voice and Text Messages over LTE 1. The Market for Voice and SMS! 2. Third Party Voice over IP! 3. The IP Multimedia Subsystem! 4. Circuit Switched Fallback! 5. VoLGA LTE was designed as a

More information

GPRS Systems Performance Analysis

GPRS Systems Performance Analysis GPRS Systems Performance Analysis Fátima de Lima Procópio Duarte, Antonio A.F. Loureiro, Leonardo Barbosa e Oliveira, Cláudio Márcio de Souza Vicente Federal University of Minas Gerais, Belo Horizonte,

More information

IMT-2000 Network Architecture

IMT-2000 Network Architecture IMT-2000 Network Architecture vtoshio Shimoe vtakamichi Sano (Manuscript received May 31, 2002) International Mobile Telecommunication-2000 (IMT-2000) is a third-generation mobile communication system.

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

Synchronization Requirements in Cellular Networks over Ethernet

Synchronization Requirements in Cellular Networks over Ethernet Synchronization Requirements in Cellular Networks over Ethernet IEEE 802.3 TS Interim, May. 2009 J. Kevin Rhee 1, Kyusang Lee 2, and Seung-Hwan Kim 3 1 KAIST, 2 ACTUS Networks, and 3 ETRI, S. Korea Acknowledgment

More information

Chapter 2 Mobility Management for GPRS and UMTS

Chapter 2 Mobility Management for GPRS and UMTS Chapter 2 Mobility Management for GPRS and UMTS Prof. Yuh-Shyan Chen Department of Computer Science and Information Engineering National Taipei University Outline 2.1 Network Architectures 2.2 Concepts

More information

Questions for Mobile Communications 2 nd ed.

Questions for Mobile Communications 2 nd ed. Questions for Mobile Communications 2 nd ed. Jochen H. Schiller, Freie Universität Berlin, Germany schiller@computer.org, www.jochenschiller.de 1. Introduction 1.1 Discover the current numbers of subscribers

More information

3GPP Technologies: Load Balancing Algorithm and InterNetworking

3GPP Technologies: Load Balancing Algorithm and InterNetworking 2014 4th International Conference on Artificial Intelligence with Applications in Engineering and Technology 3GPP Technologies: Load Balancing Algorithm and InterNetworking Belal Abuhaija Faculty of Computers

More information

Product Description. HiLink E3531 HSPA+ USB Stick V100R001 HUAWEI TECHNOLOGIES CO., LTD. Issue 01. Date 2013-6-13

Product Description. HiLink E3531 HSPA+ USB Stick V100R001 HUAWEI TECHNOLOGIES CO., LTD. Issue 01. Date 2013-6-13 HiLink E3531 HSPA+ USB Stick V100R001 Issue 01 Date 2013-6-13 HUAWEI TECHNOLOGIES CO., LTD. Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. Please feel

More information

Next-Generation Mobile Network

Next-Generation Mobile Network Next-Generation Mobile Network Tsuguo Kato The number of people using mobile phones in the world has exceeded 4.5 billion and this figure is continuing to grow. For the past several years, mobile data

More information

Performance Evaluation of VoIP Services using Different CODECs over a UMTS Network

Performance Evaluation of VoIP Services using Different CODECs over a UMTS Network Performance Evaluation of VoIP Services using Different CODECs over a UMTS Network Jianguo Cao School of Electrical and Computer Engineering RMIT University Melbourne, VIC 3000 Australia Email: j.cao@student.rmit.edu.au

More information

Femto Cells: Current Status and Future Directions

Femto Cells: Current Status and Future Directions Femto Cells: Current Status and Future Directions Khaled Elleithy and Varun Rao Department of Computer Science and Engineering, University of Bridgeport, Bridgeport, CT, USA 06604 elleithy@bridgeport.edu,

More information

Customer Training Catalog Training Programs WCDMA RNP&RNO Technical Training

Customer Training Catalog Training Programs WCDMA RNP&RNO Technical Training Customer Training Catalog Training Programs Customer Training Catalog Training Programs WCDMA RNP&RNO Technical Training HUAWEI Learning Service 2015 COMMERCIAL IN CONFIDENCE 1 Customer Training Catalog

More information

THE EVOLUTION OF EDGE

THE EVOLUTION OF EDGE 285 23-3107 Uen Rev A THE EVOLUTION OF EDGE February 2007 White Paper With EDGE Evolution higher data rates and improved coverage will be introduced, further strengthening GSM/EDGE as being an attractive

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

2G Cellular Data Networks

2G Cellular Data Networks 1 2 General Mobility Issues 2G Cellular Data Networks Registration and Authentication User Locate local service provider access point Obtain network access Service provider Locate mobile user within network

More information

UMTS/GPRS system overview from an IP addressing perspective. David Kessens Jonne Soininen

UMTS/GPRS system overview from an IP addressing perspective. David Kessens Jonne Soininen UMTS/GPRS system overview from an IP addressing perspective David Kessens Jonne Soininen Introduction 1) Introduction to 3GPP networks (GPRS, UMTS) Technical overview and concepts for 3GPP networks Mobility

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

The 3GPP and 3GPP2 Movements Towards an All IP Mobile Network. 1 Introduction

The 3GPP and 3GPP2 Movements Towards an All IP Mobile Network. 1 Introduction The 3GPP and 3GPP2 Movements Towards an All IP Mobile Network Girish Patel Wireless Solutions Nortel Networks Richardson, TX grpatel@nortelnetworks.com Steven Dennett Personal Communications Sector Motorola

More information

Use of MPLS in Mobile Backhaul Networks

Use of MPLS in Mobile Backhaul Networks Use of MPLS in Mobile Backhaul Networks Introduction Backhaul plays a vital role in mobile networks by acting as the link between Radio Access Network (RAN) equipment (Eg: radio basestation) and the mobile

More information

Cellular Phone Systems

Cellular Phone Systems Cellular Phone Systems Li-Hsing Yen National University of Kaohsiung Cellular System HLR PSTN MSC MSC VLR BSC BSC BSC 1 Why Cellular Mobile Telephone Systems? Operational limitations of conventional mobile

More information

Cellular Network Planning and Optimization Part XI: HSDPA. Jyri Hämäläinen, Communications and Networking Department, TKK, 25.1.

Cellular Network Planning and Optimization Part XI: HSDPA. Jyri Hämäläinen, Communications and Networking Department, TKK, 25.1. Cellular Network Planning and Optimization Part XI: HSDPA Jyri Hämäläinen, Communications and Networking Department, TKK, 25.1.2008 HSDPA HSDPA = High Speed Downlink Packet Access. Release 5 was the first

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

IP Multimedia System: general aspects and migration perspectives

IP Multimedia System: general aspects and migration perspectives IMS TPC EPC IP Multimedia System: general aspects and migration perspectives Dr. Leo Lehmann Federal Office of Communication, Switzerland ITU Workshop on Developments regarding telecommunication network

More information

Mobile Devices Security: Evolving Threat Profile of Mobile Networks

Mobile Devices Security: Evolving Threat Profile of Mobile Networks Mobile Devices Security: Evolving Threat Profile of Mobile Networks SESSION ID: MBS-T07 Anand R. Prasad, Dr.,ir., Selim Aissi, PhD Objectives Introduction Mobile Network Security Cybersecurity Implications

More information

W-CDMA/UMTS Wireless Networks

W-CDMA/UMTS Wireless Networks W-CDMA/UMTS Wireless Networks Understanding the Air Interface This technical brief introduces the reader to W-CDMA/UMTS wireless networks and provide some understanding and insight to the air interface

More information

Training Proposal for WCDMA Product Technical Training Project

Training Proposal for WCDMA Product Technical Training Project Training Proposal Training Proposal for WCDMA Product Technical Training Project HUAWEI Learning Service 2014 COMMERCIAL IN CONFIDENCE 1 Training Proposal CONTENTS 1 Training Solution... 4 1.1 Background

More information

Customer Training Catalog Course Descriptions WCDMA RNP&RNO Technical Training

Customer Training Catalog Course Descriptions WCDMA RNP&RNO Technical Training Customer Training Catalog Course Descriptions Customer Training Catalog Course Descriptions WCDMA RNP&RNO Technical Training HUAWEI Learning Service 2015 COMMERCIAL IN CONFIDENCE 1 Customer Training Catalog

More information

White Paper ON Dual Mode Phone (GSM & Wi-Fi)

White Paper ON Dual Mode Phone (GSM & Wi-Fi) White Paper ON Dual Mode Phone (GSM & Wi-Fi) Author: N Group 1.0 Abstract Dual Mode Handset is in demand for converged Network, Access, Billing, and Operation environment. Dual mode handsets provide cost

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

Wireless Information Transmission System Lab. Introduction to Wireless Communications

Wireless Information Transmission System Lab. Introduction to Wireless Communications Wireless Information Transmission System Lab. Introduction to Wireless Communications Wireless Communication Systems Network Radio wave wire wire LAN Network Base station transceiver LAN 2 Wireless Technologies

More information

EDGE, ENHANCED DATA RATES FOR GSM AND TDMA/136 EVOLUTION

EDGE, ENHANCED DATA RATES FOR GSM AND TDMA/136 EVOLUTION EDGE, ENHANCED DATA RATES FOR GSM AND TDMA/136 EVOLUTION Anders Furuskär, Sara Mazur, Frank Müller and Håkan Olofsson Ericsson Radio Systems S-164 8 Stockholm, Sweden ABSTRACT Two of the major second generation

More information

Introduction to Evolved Packet Core

Introduction to Evolved Packet Core S T R A T E G I C W H I T E P A P E R Introduction to Evolved Packet Core This white paper provides a brief introduction to Evolved Packet Core a new mobile core for LTE. Herein, key concepts and functional

More information

Mobile Communication GSM, GPRS, EDGE, UMTS and beyond

Mobile Communication GSM, GPRS, EDGE, UMTS and beyond Mobile Communication GSM, GPRS, EDGE, UMTS and beyond Ralf Keller Ericsson Research, Corporate Unit Ericsson Eurolab Deutschland GmbH Ralf.Keller@ericsson.com 1 Overview Services GSM GPRS & EDGE UMTS Beyond

More information

LTE Performance and Analysis using Atoll Simulation

LTE Performance and Analysis using Atoll Simulation IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-issn: 2278-1676,p-ISSN: 2320-3331, Volume 9, Issue 6 Ver. III (Nov Dec. 2014), PP 68-72 LTE Performance and Analysis using Atoll Simulation

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

NTRC Dominica April 28 to May 2, 2014 Fort Young Hotel

NTRC Dominica April 28 to May 2, 2014 Fort Young Hotel NTRC Dominica April 28 to May 2, 2014 Fort Young Hotel Mobile Networks Next Generation Mobile Networks Keith A. Benjamin Operations Manager South Cluster LIME (Cable & Wireless) Global Markets Global Markets

More information

In this Lecture" Access method CDMA" Mobile and Sensor Systems Lecture 2: Mobile Medium Access Control Layer and Telecommunications

In this Lecture Access method CDMA Mobile and Sensor Systems Lecture 2: Mobile Medium Access Control Layer and Telecommunications Mobile and Sensor Systems Lecture 2: Mobile Medium Access Control Layer and Telecommunications Dr. Cecilia Mascolo In this Lecture In this lecture we will discuss aspects related to the MAC Layer of wireless

More information

GSM BTS Development & GSM/EDGE Receiver based on FDE

GSM 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 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

REPORT ITU-R M.2134. Requirements related to technical performance for IMT-Advanced radio interface(s)

REPORT ITU-R M.2134. Requirements related to technical performance for IMT-Advanced radio interface(s) Rep. ITU-R M.2134 1 REPORT ITU-R M.2134 Requirements related to technical performance for IMT-Advanced radio interface(s) (2008) TABLE OF CONTENTS... Page 1 Introduction... 2 2 Scope and purpose... 2 3

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

Π1: Wireless Communication Systems

Π1: Wireless Communication Systems Π1: Wireless Communication Systems Preface The scope of this deliverable is to provide an overview of modern wireless communication systems. This report has taken into consideration the popular cellular

More information

Index. Common Packet Channel (CPCH) 25 Compression 265, 279 82, 288 header compression 284

Index. Common Packet Channel (CPCH) 25 Compression 265, 279 82, 288 header compression 284 bindex.fm Page 296 Tuesday, March 22, 2005 7:17 AM Index 2G, 2.5G, 3G 13 3GPP 118 Release 5 (Rel 5) 124 Release 6 (Rel 6) 125 Release 97/98 (Rel 97/98) 119 Release 99 (Rel 99) 120 4 3GPP2 129 4G 13, 44

More information

From GSM to LTE-Advanced. An Introduction to Mobile Networks and Mobile Broadband. Revised Second Edition

From GSM to LTE-Advanced. An Introduction to Mobile Networks and Mobile Broadband. Revised Second Edition Brochure More information from http://www.researchandmarkets.com/reports/2882934/ From GSM to LTE-Advanced. An Introduction to Mobile Networks and Mobile Broadband. Revised Second Edition Description:

More information