gsm stands for global system for mobile

... Trang 1GSM – GLOBAL SYSTEM FOR MOBILE COMMUNICATION Kiến trúc hệ thống và các giao thức Nhóm sinh viên: Trần Xuân Bách Nguyễn Tiến Đạt Đỗ Trung Đức Trang 2Các bước phát triển của GSMTrang ... Mobile Station (MS)  Mobile Equipment (ME)  Subscriber Identity Module (SIM)  Base Station Subsystem (BBS)  Base Transceiver Station (BTS)  Base Station Controller (BSC)  Network Subsystem ... một trạm gốc Trang 11Network SubsystemTrung tâm chuyển mạch các dịch vụ di động Mobile Switching Center (MSC) Trang 12 Là trung tâm chuyển mạch chính của mạng GSM  Nhiệm vụ điều phối việc thiết

Ngày tải lên: 24/06/2022, 08:30

... Lecture 16 GSM: Global System for Mobile Communication Dr Ghalib A Shah Trang 4 Various systems have been developed without the benefit of standardized specifications.  Digital Systems: ► ... 55Trang 6 The GSM network is divided into three major systems: ► switching system (SS) • is responsible for performing call processing and related functions. subscriber-► base station system (BSS), ... the system • To offer the customer cost-effective support for centralized, regional, and local operational and maintenance activities that are required for a GSM network. Trang 77Trang 8 Mobile Switching Centre MSC ►

Ngày tải lên: 05/07/2022, 13:09

... 1 Global System for Mobiles GSM 2 TOPICS • GSM CONCEPTS • GSM SYSTEM ARCHITECTURE • IDENTITIES USED IN GSM • GSM CHANNELS • GSM RADIO LINK • MOBILITY MANAGEMENT ... 374 299 GSM systems Uplink Downlink GSM 450 GSM 480 450.4-457.6 478.8-486 GSM 900 E -GSM (900) R -GSM (900) GSM 1800 GSM 1900 GSM 850 824-849... Frequency Channel Number GSM Family ... 457.6 478.8 GSM 450 Downlink 460.4 824 GSM 480 467.6 488.8 849 GSM 850 496 869 894 MHz 915 Uplink 876 880 486 915 890 915 1710 1785 1850 1910 P -GSM E -GSM GSM 1800 GSM 1900 R -GSM 921

Ngày tải lên: 19/10/2013, 15:15

... PSNR of crowd sequence for the first 120 frames This paper discussed the use of DVB-T2 system as a bearer for mobile data using H.264/SVC Three important challenges for mobile transmission: power ... quality encodings by splitting or refining the transform coefficients For detailed information about architecture, system, and transport interface for SVC, the reader is referred to the Special Issue ... provides a good baseline for the future development of a new mobile broadcast system The new system would be able to reuse the infrastructure and components that would be available for DVB-T2 At the

Ngày tải lên: 26/03/2020, 03:16

... electronic applications over conventional battery systems However, the typical polymer electrolyte fuel cell system with its heavy reliance on subsystems for cooling, humidification and air supply would ... permeability for the gas phase (KP ) The relative permeability accounts for the reduction in pore space available for one phase due to the existence of the second phase [7] The momentum equation for ... the cell width of the electrode For optimal fuel cell performance, a uniform current density generation is desirable, and this could only be achieved with a non-uniform catalyst distribution, possibly

Ngày tải lên: 05/09/2013, 14:58

... of this book? '3G' is short for 'third generation mobile systems'. 3G is the successor of 2G - the existing digital mobile systems: GSM in most of the world, D-AMPS in the ... companies for more complete information regarding trademarks and registration. Other Wiley Editorial Offices Hoboken, San Francisco, Weinheim Wisley, Dave. IP for 3G : networking technologies for mobile ... being captured for malicious use and impersonation of users One, final, level of security is performed on the mobile equipment itself, as opposed to the mobile subscriber (for. .. to answerphone

Ngày tải lên: 27/10/2013, 17:15

... triển ứng dụng • • • • Java Platform, Standard Edition version 1.6.0 IDE MobileInformation Device Profile(MIDP) 2.0 Sun Java Wireless Toolkit 2.5.2_01for CLDC for Windowsand Linux Connected Limited ... điển cho Mobile Chương 3: Phát triển ứng dụng từ điển cho Mobile Chương 4: Thực nghiệm đánh giá Mục đích : Bài tiểu luận với đề tài “Xây dựng ứng dụng từ điển cho Mobile – Dictionary for Sinh ... XDUD TỪ ĐIỂN CHO MOBILE……….6 CHƯƠNG II : MỘT SỐ KIẾN THỨC HỖ TRỢ XÂY DỰNG ỨNG DỤNG TỪ ĐIỂN CHO MOBILE……………………………………………………………………………… CHƯƠNG III : PHÁT TRIỂN ỨNG DỤNG TỪ ĐIỂN CHO MOBILE…………… 11 CHƯƠNG

Ngày tải lên: 10/11/2013, 13:49

... typical differential-drive mobile robot (bottom view) 20 Part I Sensors for Mobile Robot Positioning For completeness, we rewrite the well-known equations for odometry below (also, ... and Warning System .127 P ART II S YSTEMS AND M ETHODS FOR M OBILE R OBOT P OSITIONING Chapter 5 Odometry and Other Dead-Reckoning Methods .130 5.1 Systematic and Non-Systematic ... Sensors for Mobile Robot Positioning CARMEL, the University of Michigan's first mobile robot, has been in service since 1987 Since then, CARMEL has served as a reliable testbed for. ..

Ngày tải lên: 22/12/2013, 20:16

... Virtual Machine KLTN Khóa luận tốt nghiệp KVM K Virtual Machine MIDP Mobile Information Device Profile MID Mobile Information Device SDK Software Development Kit vi DANH MỤC HÌNH ... Đỉnh ii TÓM TẮT NỘI DUNG Khóa luận với đề tài “Xây dựng ứng dụng từ điển cho Mobile – Dictionary for Mobile” sẽ đưa ra những cái nhìn tổng quát về nền tảng J2ME, đây là một nền tảng ứng ... Xây dựng ứng dụng từ điển cho Mobile – Dictionnary for Mobile i LỜI CẢM ƠN Trước tiên, tôi xin gửi lời cảm ơn và lòng

Ngày tải lên: 08/01/2014, 21:20

... http://jquerymobile.com/gbs for the most recent information on the operating systems and browsers supported by jQuery Mobile. Figure 1.14 A Mobile Starter page contains placeholders for a basic ... iOS (for iPhone, iPad, and iPod touch) Adobe plans to expand Dreamweaver’s support for other mobile operating systems, such as BlackBerry, later W3C The W3C (www.w3.org) is responsible for ... sites are slow to download on a mobile device In many cases, it’s best to create a custom-built site for mobile users dif-The jQuery Mobile framework is ideal for doing this, and it has been

Ngày tải lên: 06/03/2014, 03:20

... Introduction An important and challenging area of mobile informa- tion systems is the design of architectures and protocols for providing mobile users with Personal Information Services and Applications (PISA). ... 0<=m1’<=50 C1 for type m: 0<=m1<=40 E1’ for type m’: 20<=m1’<=20 E1 for type m: 30<=m1<=30 C2 for type m: 0<=m2<=50 C2’ for type m’: 0<=m2’<=50 E2 for type m: 10<=m2<=10 E2’ ... 0<=m1<=40 E1’ for type m’: 20<=m1’<=20 E1 for type m: 20<=m1<=30 C2’ for type m’: 0<=m2’<=50 E2’ for type m’: 20<=m2’<=20 E2 for type m: 10<=m2<=20 C2 for type m:

Ngày tải lên: 16/03/2014, 15:20

... based on video captured from digital camera. The ultimate goal of our system is to create an obstacle detection system for a mobile robot mounted with a camera so that it can detect an obstacle ... given space is free of obstacles for safe travel by an autonomous vehicle. OD has been applied into many kinds of real life applications such as OD system for motorcars along highways to avoid ... very good result but for the reasons of cost and practicality of each of each sensor type (laser sensor is quite expensive), we use digital camera in our system. Thus, our system will operate

Ngày tải lên: 12/04/2014, 15:45

... APEX for Mobile Web Development,” introduces and explains the need for web development for mobile devices. Chapter 2, “Creating Mobile Web Pages,” explains the necessary building blocks of mobile ... native applications. Native mobile applications are those that are built for a specific mobile operating system, such as iOS, Android, Windows Mobile, or BlackBerry. Native mobile applications are ... ■ IntroduCtIon to apeX for MobIle Web developMent 3 Figure 1-1. Desktop home page Figure 1-2. Mobile home page www.it-ebooks.info Chapter 1 ■ IntroduCtIon to apeX for MobIle Web developMent

Ngày tải lên: 05/05/2014, 15:37

... PL-SQL  Loops in PL-SQL Loops in PL-SQL Why PL SQL ? Why PL SQL ?  PL/SQL stands for Procedural Language/SQL. PL/SQL stands for Procedural Language/SQL.  PL/SQL extends SQL by adding constructs ... If Then ELSIF Then ELSE END IF;   Note here that for one IF we only need one END IF; No END IF is required for ELSIF i.e for one set of IF condition only one END IF; is required ... value for Number1: Whatever value user will enter here will be assign to variable num1 Accept a value  Examples: name := ‘&Name’; At run time this will prompt as Follows  Enter a value for

Ngày tải lên: 12/05/2014, 11:55

... are some myths about mobile context Mobile users are distracted and in a rush Taps != clicks The feature set should be much smaller for a mobile site than for a desktop site ” ... Understanding mobile context 1. Becoming responsive 2. Managing content 3. Usable mobile design patterns 4. Understanding mobile context 1. Let’s talk some numbers • by 2014 mobile internet ... Jakob Nielsen, useit.com/alertbox /mobile- ux-guidelines.html Mobile is about apps There’s mobile web! But what’s content (strategy) ... conveys meaningful information to humans is called content

Ngày tải lên: 30/05/2014, 21:31

... visual networking index: Global mobile data traffic forecast update, 2010–2015, 2011 5 Allot: Allot mobile trends: Global mobile broadband... reservation issue for moving networks in ... distributed freely for any purposes (see copyright notice below). For information about publishing your research in EURASIP WCN go to http://jwcn.eurasipjournals.com/authors/instructions/ For information ... are ever-increasing demands for systematic deployment of moving networks in a vehicular environment such as public transits (e.g., a bus, train, or airplane). For mobile hotspots in a vehicular

Ngày tải lên: 20/06/2014, 20:20

... modern mobile devices In order to adapt to the changing BW while maintaining the rate-distortion (R-D) performance, this article proposes a novel data BW-scalable algorithm for ME with mobile ... we develop an analytical B-R-D model to perform on-line BW optimization for real-time video coding For the simplicity of on-line execution, the RDG formulation can be well approximated by the ... is initialized for BW allocation of the overall data BW pool later in the coding process This initialization takes the available system BW and converts it to a default system SR for the ME Then,

Ngày tải lên: 20/06/2014, 21:20

... information is available at the end of the article Abstract Tibetan herders have lived for centuries in the high grasslands of Central Asia, yet many development programs are currently transforming ... commitment of key stakeholders, and with sufficient time allowed for trust and understanding to develop, it is possible for various forms and styles of partnerships (collaborative management) to ... experiences of development. For this reason, the authors ha ve spent years learning about local views, perceptions, under- standings, etc. through both formal and informal discussions, interviews

Ngày tải lên: 20/06/2014, 23:20