apple 3g mobile applications

... System 15 Third-Generation (3G) Wireless Technology 16 3G Requirements 18 Evolution to 3G Systems 21 Summary 23 References 25 Chapter 2 Propagation Characteristics of a Mobile Radio Channel 27 Large-Scale ... most important features of 3G. Because of the many advantages that it offers, the CDMA technology forms the basis of 3G systems. References [1] W.R. Young, “Advanced Mobile Phone Service: Introduction, Background, ... or pedestrian (0 to 10 km/h) ■ Ordinary vehicular applications up to 100 km/h ■ High-speed vehicular applications up to 500 km/h ■ Aeronautical applications up to 1500 km/h ■ Satellites up to 27000...

Ngày tải lên: 02/03/2013, 16:58

... different aspects of 3G mobile communi- cations. They developed algorithms and air interfaces, performed simulation, built prototypes, and conducted field tests to verify their validity. 3G partnership ... received by a mobile antenna in and around Tokyo in the frequency band from 200 MHz to 1,920 MHz using different base station and mobile antenna heights. Black and Reudink [19] studied the mobile radio ... authors indicate that the signal strength received by a mobile would depend 31 Propagation Characteristics of a Mobile Radio Channel Base Station Antenna Mobile Antenn a Direct Ray Reflected Ray r h t h r Figure...

Ngày tải lên: 23/12/2013, 01:17

... GWT Mobile UI. GWT Mobile UI is an open source collection of GWT widgets specifically designed for mobile devices. It has input widgets (buttons and sliders) as well as different panels for mobile ... extensions. v www.it-ebooks.info CHAPTER 5 Building a Pure Mobile App with GWT Mobile UI So far we have used GWT to build a standard desktop web app then optimized it for mobile using CSS tricks. This approach will ... action button they 36 | Chapter 5: Building a Pure Mobile App with GWT Mobile UI www.it-ebooks.info Feature List 36 Navigation Choices 36 GWT Mobile UI 37 Building the Screens 37 Wine List Screen...

Ngày tải lên: 15/03/2014, 18:20

... through to Mobile Web). 2 There is a trend toward Mobile Web runtime environments •฀ on mobile phones. This will enable mobile applications to enter mobile phones “on the fly” as mobile widgets ... consumer satisfaction. 2.0 Mobile Applications Overview Mobile applications are a rapidly developing segment of the global mobile market. They consist of software that runs on a mobile de- vice and ... pages) - Banking/Finance - Page 1 Mobile Applications of 9 www.mmaglobal.com Mobile Marketing Association Version 1.0 Page 7 Mobile Applications of 9 ©฀2008 Mobile Marketing฀Association฀•฀USA฀1670฀Broadway,฀Suite฀850,฀Denver,฀CO฀80202 7.0...

Ngày tải lên: 15/03/2014, 22:20

... 51 Summary 54 Chapter 5: Extending WordPress to the Mobile World 55 Introducing jQuery Mobile 55 Installing jQuery Mobile and theming 56 jQuery Mobile page template 57 Animation effects 58 Extending ... our mobile app's content is dependent on our WordPress site, we need to add basic content (in this case, place listings and other article-like information) to the site. WordPress Mobile Applications ... next chapter we will be learning about PhoneGap, an open source mobile development tool that allows you to develop native mobile applications using JavaScript. Chapter 3 [ 29 ] Now save your...

Ngày tải lên: 28/04/2014, 15:50

... systems. 13 Also, because a mobile radio channel is time varying, and because the signal at a mobile antenna is subjected to a Doppler shift that varies with the mobile velocity, the signal frequency ... Land Mobile Satellite Channels and Its Applications to Nongeostationary Orbit Systems,” IEEE Trans. Veh. Tech., Vol. 43, No. 3, August 1994, pp. 738 — 741. [17] E. Lutz, et al., “The Land Mobile ... most important features of 3G. Because of the many advantages that it offers, the CDMA technology forms the basis of 3G systems. References [1] W.R. Young, “Advanced Mobile Phone Service: Introduction, Background,...

Ngày tải lên: 18/06/2014, 10:05

... codes. Walsh Codes Various physical channels may exist at any time on a radio interface of a 3G system. For example, at a mobile station, there may be one or more dedicated physical data channels, a dedicated ... desired speech signal. The filter coefficients are determined 69 Principles of Wideband CDMA (W-CDMA) Mobile Communications System Speech Coding Algorithm IS-54/IS-136 Vector-Sum Excited Linear Predictive Coding ... kb/s, the output of the coder is 244 bits for every 20-ms frame. Table 3-2 Speech encoders used in mobile communications systems into two streams, each of which BPSK-modulates the carrier. Conse- quently,...

Ngày tải lên: 18/06/2014, 10:05

... maximum number of mobile stations that can be served in a CDMA system) is maximum when the transmitter power of each mobile station is adjusted such that the received SIR from each mobile is just ... the fig- Chapter 4 122 Mobile Radio Systems,” IEEE Trans. Veh. Technol., Vol. VT- 39, No. 1, pp. 56 — 67, February 1990. [38] S. Anderson, et al., “An Adaptive Array for Mobile Communi- cations ... signals simultaneously from two mobile stations, one close to the base sta- tion and the other farther from it near the edge of a cell. Because UE1 is closer than UE2, if both mobile stations are transmitting...

Ngày tải lên: 18/06/2014, 10:05

... parameters. The EIR con- tains the International Mobile station Equipment Identity (IMEI) numbers of all mobile stations that are registered. Each mobile is assigned a unique IMEI number that can ... a mobile station can use for timing recovery and synchronization. An exact copy of this sequence is stored in the mobile memory. Thus, by comparing the received sequence with this copy, a mobile ... to improve the system performance. Quality of Service (QoS) At any time, multiple applications may run on a mobile station. A user may request a desired QoS depend- ing on the application, and...

Ngày tải lên: 18/06/2014, 10:05

... signal level from all mobile stations in the cell, thereby preventing a single mobile (which may happen to be closer to the base station) from swamping out the sig- nals from other mobiles. Rate matching ... Institute (ETSI)/Special Mobile Group (SMG) developed two standards for International Mobile Telecommunication in the year 2000 (IMT-2000). One of them is the Universal Mobile Telecommunications ... which mobile station (or application) can use the next uplink RLC block on the same time slot. In this way, dif- ferent mobile stations may be multiplexed on the same PDCH when necessary. A mobile...

Ngày tải lên: 18/06/2014, 10:05

... num- ber of these channels have to be transmitted using a single CDMA carrier. As an example, a mobile station may have a number of uplink DPDCHs as well as a DPCCH. In this case, the channels ... steps of 1 / 15 . Because the resulting real-valued symbol sequences, indicated 225 Universal Mobile Telecommunications System (UMTS) Physical Channel A I X X X X o o o 11 C 12 C 11 G 12 G Physical Channel ... Y X Q Complex Scrambling Code To Modulator + 0 90 ⌺ ⌺ Figure 6-18 Spreading multiple physical channels from a mobile station 14 In other words, we are going to use binary phase shift keying. 15 Each set modulates...

Ngày tải lên: 18/06/2014, 10:05

... for 3G networks, particularly if it can be designed to support delay-sensitive real-time applications. In fact, ETSI is defining a standard adopting an all-IP architecture to deliver 3G mobile ... Channel Coding. [11] 3GPP TS 25.213, Spreading and Modulation (FDD). [12] 3GPP TS 25.214, Physical Layer Procedures. [13] 3GPP TS 25.215, Physical Layer — Measurements. [14] 3GPP TS 25.302, Services ... Protocols [15] 3GPP TS 25.321, MAC Protocol Specification. [16] 3GPP TS 25.322, RLC Protocol Specification. [17] 3GPP TS 25.323, Packet Data Convergence Protocol (PDCP) Specification. [18] 3GPP TS 25.324,...

Ngày tải lên: 18/06/2014, 10:05

... virtual connections between two IntServ-capable routers [11], [16]. RSVP for Mobile Systems Problems arise when standard RSVP is used in a mobile communi- cations network. Reference [11] has studied these ... developed by 3G only apply to the UMTS radio bearer service. The objective of this chapter is to provide the reader with a basic understanding of the subject. 299 Quality of Service (QoS) in 3G Systems Figure ... the video and audio must always be synchronized, the allowable jitter for these applications is generally quite low. 3G system requirements specify that the maximum transfer delay must lie in the...

Ngày tải lên: 18/06/2014, 10:05

... highlighted the features and applications of various systems in Figure 11-2. Applications and Features of 4G Possible applications of 4G include multimedia services for mobile environments (such ... [13] has suggested another protocol called Mobile IP with Location Register (MIP-LR) for mobile wireless networks. According to this protocol, when a mobile station moves into a for- eign serving ... manufacturing 3G wire- less equipment so that service providers can begin to roll out 3G ser- vices to their customers in the near future. NTT DoCoMo of Japan has been actively developing 3G technologies....

Ngày tải lên: 18/06/2014, 10:05

... 49–50 mobile radio signals, 28 mobile stations, 3G systems, 20 mobile systems, 325–327 modulation, 79 BPSK, 80 DQPSK, 111 MSK, 166–168 OQPSK, 111 QPSK, 80, 110 monitoring VC traffic, 318 MRSVP (Mobile ... 314 microcells, 19 MIP-LR (Mobile IP with Location Register), 328 MJ mobile system, 2 MK system, 3 MM (Mobility Management), 278 mobile phone systems, early models, 2–3 mobile radio channels large-scale ... (International Mobile Station Equipment Identity), GSM, 159 IMT-2000 (International Mobile Telecommunication in the year 2000), 17 inner loop power control, UMTS, 219 interactive 3G traffic, 304 interleaving,...

Ngày tải lên: 18/06/2014, 10:05

Ngày tải lên: 18/06/2014, 16:20

Ngày tải lên: 18/06/2014, 16:20

Ngày tải lên: 18/06/2014, 16:20

Ngày tải lên: 18/06/2014, 16:20

Ngày tải lên: 18/06/2014, 16:20