Wireless Future - Telenor

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Figure 21 A laptop and peripheral devices connected to the network Figure 22 A laptop and peripheral devices not connected to the network. In this case the necessary drivers can be downloaded and installed on the laptop using the Virtual Terminal 122 Peripheral devices (printer, scanner, screen etc...) printer Laptop/PDA scanner Peripheral devices (printer, scanner, screen etc...) Laptop/PDA drivers printer TV screen camera projector Bluetooth for detection of unknown devices TELECOM NETWORK scanner TV screen camera Bluetooth for detection and transportation projector 6.3.4.3 Releasing Devices from a Session Releasing a device from an active session should be a very straightforward task. The user can either communicate this to the Virtual Terminal via one of his other active devices or simply turn off the device to be released. 6.4 Configuring the Devices Another functionality the Virtual Terminal can offer is to help the user configure his different devices when this is required. This will be illustrated by the following examples. Assume the Virtual Terminal contains a set of communication and computing devices + peripheral devices. Again, there are two different cases similar to the ones mentioned above, with or without network connection. We consider a laptop and peripheral devices such as a printer, a scanner, a digital camera, etc. When the peripheral devices are connected to the network, the communication with these devices can go through the network. A Bluetooth link can be used to detect available unknown devices and to find out which drivers they require, etc. The different drivers for the printers, scanners, TELECOM NETWORK VT Drivers VT etc. can be contained in the Virtual Terminal and do not need to be installed on the laptop. Another advantage is that the laptop and the peripheral devices can be far away, for example the user can send data to his home printer even if he is away. In the case where the laptop wants to communicate with foreign peripheral devices that are not connected to the network, a cable or a cable substitute such as a Bluetooth link is needed for direct communication. In this case the laptop must have the appropriate drivers installed. The Virtual Terminal can find the necessary drivers for the devices and then send and install them on the laptop. It can also clean up when the mobile device moves on – i.e. delete the drivers when they are no longer needed. 6.5 Administrating the Virtual Terminal As specified earlier this use case consists of five sub use cases: Accessing profile, Defining/deleting a device, Registering/deregistering a device, Reading mailbox, Reading usage statistics. In this section, we will examine each of these use cases successively. Telektronikk 1.2001
X:User 6.5.1 Accessing Profile Each user has a profile where he may store all his set up and preferences. The profile may incorporate things like bookmarks, address list and also items that the user uses frequently. At this stage it has not been analysed what should be part of the user profile. However, it is important that the profile contains a list of all components of the Virtual Terminal, i.e. all the devices that the user has at his disposal. Such a list should contain both the device unique ID, e.g. MSISDN number, IP address, etc., and also the device type, e.g. GSM phone, SAT (SIM Application Toolkit) phone, WAP phone, PDA, PC, TV, etc. The profile might also contain a list of possible mailboxes to where incoming messages can be sent. The user should be able to choose what kind of mailboxes he wants in this list and which mailbox to use at any given time. The user’s personal address book should also be placed in the Virtual Terminal so that he can reach it from any device he might be using. Another important issue is that the profile should be easily accessible to the user. The user should have the possibility to access his profile from any Web browser and any WAP phone and to change elements in it if desired. It is therefore necessary to have sufficiently strong authentication and access control to prevent fraudulent access to the user profile. This use case and also the other three use cases will hence use the use case Authentication & Access Control. The Virtual Terminal should also have access to a certain database in order to read and write the user profile. Telektronikk 1.2001 1:Device 2:Device 3:Device PSTN/ISDN Gateway Gateway WAP GW Mobile Network User Profile IP-based Network WAP/Web server X:Virtual Terminal As shown in Figure 23, the Virtual Terminal should reside on a Web/WAP server or alternatively reside on a separate application server but accessible from the Web/WAP server. There are several commercial application server products available such as Bea Weblogic, Cold Fusion, NetDynamics, Netscape Application Server, etc. The evaluation and selection of appropriate application server, however, are out of the scope of this article. The Web/WAP can be a standard public domain Web server such as Apache, a W3C XML (Extended Markup Language) bean server such as Bea Logic (Weblogic). Depending on whether the terminal has a Web browser or a WAP browser HTML (Hypertext Markup Language) or WML (<strong>Wireless</strong> Markup Language) will be generated from XML. 6.5.2 Defining and Deleting Devices All the devices that the user has at his disposal and may use in a specific situation must be defined in his profile so that the Virtual Terminal knows how to handle them. Such a definition can be done manually and the user must then update the list of defined devices contained in the Virtual Terminal with all necessary information about the new device to be defined. Deleting an already defined device manually is naturally a much easier task. New devices can also be defined in the Virtual Terminal automatically when they are discovered by some service discovery protocols that detect all necessary information, but to define too many devices automatically might result in a long list of devices that are hardly ever used. A better approach could be to let all necessary information about new devices be detected automatically, and to simply Figure 23 Profile access from WAP/Web 123
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Telektronikk Volume 97 No. 1 - 2001
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Per Hjalmar Lehne (42) obtained his
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Stein Svaet (41) is Senior Research
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Pbit/day 6 150 125 100 75 50 25 0 F
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8 Video communication as a utility
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10 The idea of reconfigurable mobil
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12 Switched lobe Dynamically phased
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Figure 10 The All IP vision Figure
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16 The IP world has some problems t
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18 Abbreviations and acronyms less
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Jorge Pereira (40) obtained his Eng
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(Millions) Figure 1 Exponential gro
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24 Defining Generation based upon D
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Multi-mode Terminal by Software Rad
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distribution layer possible return
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30 A Co-Ordinated Approach to 4G As
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Figure 2 Applications will grow fas
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Figure 5 Evolution from multi-mode
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Operator/Provider download librarie
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Radio network subsystem - service c
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Dr. Techn. Jørgen Bach Andersen (6
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Figure 3 Two arrays with M and N el
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Figure 5 Cumulative probability dis
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Figure 8 As in Figure 5, but with F
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48 Conclusion The challenge of prov
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50 models are described simply by a
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52 ping intervals or “quantizatio
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Figure 3 ASE as a function of the a
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56 7 Conclusion and Further Researc
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Dave Wisely (39) graduated in 1982
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Figure 2 Business case study Figure
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Figure 6 BRAIN QoS architecture 62
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64 4 BRAIN homepage. (2001, March 6
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Figure 2 The Bluetooth protocol sta
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Figure 5 A Bluetooth radio module i
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70 • Instant postcard: A Bluetoot
Page 74 and 75: 72 work visions come true, it is ne
Page 76 and 77: Table 1 Allocated HiperLAN bands (i
Page 78 and 79: Figure 4 Basic MAC frame structure
Page 80 and 81: 78 Preamble BCH FCH ACHs Preamble S
Page 82 and 83: throughput bit/s 80 3 2.5 2 1.5 1 0
Page 84 and 85: 82 5 References 1 CEPT. ERC Decisio
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Page 98 and 99: Figure 6 SCSs and network functiona
Page 100 and 101: Figure 9 The new business model. Fr
Page 102 and 103: 100 A strong consortium backs up th
Page 104 and 105: 102 Music Company Figure 3 Service
Page 106 and 107: Figure 4 OSA architecture service c
Page 108 and 109: Do van Thanh (43) obtained his MSc
Page 110 and 111: Figure 2 The first use case diagram
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Page 116 and 117: Figure 10 Initiating call from PSTN
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Page 120 and 121: Figure 17 A set of communication de
Page 122 and 123: 120 Box 3 continued Session Descrip
Page 126 and 127: 124 Box 4 - Bluetooth Bluetooth is
Page 128 and 129: 126 6 The ICEBERG project. (2001, M
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Page 132 and 133: ? Figure 1 The Mobile Service Platf
Page 134 and 135: Figure 2 Needs and Related Services
Page 136 and 137: 134 Telektronikk 1.2001
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Page 140 and 141: Anne Lise Lillebø (52) is Adviser
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Page 144 and 145: 142 Box 2 - ETNO Declaration We, th
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Page 148 and 149: 146 In ITU-T we have seen needs to
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Page 154 and 155: 152 The functionality describing th
Page 156 and 157: 154 9 Potter, B et al. An introduct
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