Wireless Future - Telenor

More documents

Recommendations

Info

Radio network subsystem - service channel - Figure 10 Pilot channel for access assignment Figure 11 SW radio with a hybrid fibre distribution 38 Core network RNS UMTS RNS Bluetooth signal data 5 Outlook The paper has described SW radio as a technology to support 4G mobility; that means the support of different radio access networks by one base station. Hybrid Fibre Radio (HFR) is a proven concept to distribute radio directly over fibre. In the EURESCOM P921 project a successful demonstration of UMTS over a 20 km long fibre was performed, suggesting the combined use of a SW radio base station with distribution of the radio signal over fibre to the remote antenna units [P921D1]. HFR is able to transmit all the common radio standards currently around like: DECT, GSM, UMTS, LMDS, MBS. However, the actual analogue optical feeder design may vary depending on the radio signal transmitted. Within the P921 project, HFR was identified as a very promising technology in the near future in order to give cheap, building independent wireless access by supporting small in-door radio cells (picocells) and outdoor GSM/UMTS microcells. SW radio in this sense would allow different radio standards to be transmitted in a flexible manner to Antenna RNS Hiperlan/2 Distribution antenna Optical fibre these radio cells, thereby giving radio independent access (see Figure 9). The integration of different access technologies has to be supported by an architecture for identification and assignment of the available access systems. Figure 10 demonstrated the idea of using a pilot channel for the assignment of a data channel. Most European countries have an almost 100 % coverage with GSM. In the GSM system the BCCH channel is assigned for signalling. This channel could be used to transmit information to the core network about the availability of additional access networks. The data transport will then happen on the optimal access network, while the pilot channel (e.g. BCCH) carries the necessary information for handover. Mohr and Kornhäuser suggest a layered structure for the seamless future [Mohr2000]. They suggest a service convergence protocol to support the different future services. In addition, they suggest a medium access control (MAC) layer to guarantee wireless quality of service and high spectrum utilisation by allocating dynamic bandwidth. 6 Conclusions This paper described the evolution of mobile access beyond 3G. An optimised access has to be established for each scenario, depending on the requirements of the application and the location of the user. SW radio is the evolving technology to support the optimised access. The ideal SW radio consists of a direct A/D conversion at the antenna, and the digital baseband processing in reprogrammable FPGAs or DSPs. As sampling at RF is not possible with the current converter and signal processing technology, prototypes work Pick-up antenna SW radio based distribution unit Telektronikk 1.2001
with programmable up- and down converters, followed by base band processing. Technology developments suggest the first prototypes of SW radio equipment within 2003, following the need for multi-standard 2G/3G terminals. SW radio technology is of even higher importance for base stations, as it increases the hardware lifetime, allows hardware reuse by reprogramming, and the inclusion of future access methods such as UMTS TDD and Hiper- LAN/2. SW download and on-the-fly upgrade is a major advantage when using SW radio terminals. This implies standardised hardware solutions or resident compilers. The implementation of a real time Java virtual machine can be one of the most promising solutions in this field. 7 Literature [DiBenetto2000] Di Benedetto, M-G, Tosco, F, Vatalaro, F. Mobile Radio Advances in Europe: Third Generation and Beyond. IEEE Comm Mag, 38 (9), 125–126, 2000. [Ericsson2000] Frodigh, M, Johansson, P, Larsson, P. Wireless ad hoc networking – The art of networking without a network. Ericsson Review, 77 (4), 248–263, 2000. [Cuomo2000] Cuomo, F, Baiocchi, A, Cautelier, R. A MAC Protocol for a Wireless LAN Based on OFDM-CDMA. IEEE Comm Mag, 38 (9), 152–159, 2000. [Buracchini2000] Buracchini, E. The Software Radio Concept. IEEE Comm Mag, 38 (9), 138–143, 2000. [FIRST] ACTS FIRST, Flexible Integrated Radio Systems Technology. (2001, March 16) [online] – URL: http://www.era.co.uk/first/first.htm [SORT] ACTS SORT, Software Radio Technology. (2001, March 16) [online] – URL: http://www.ifn.et.tu-dresden.de/~sort/ [Hentschel1999] Hentschel, T, Henker, M, Fettweis G. The Digital Front-End of Software Radio Terminals. IEEE Pers Comm, 6 (4), 40–46, 1999. Telektronikk 1.2001 [Tsurumi1999] Tsurumi, H, Suzuki, Y. Broadband RF Stage Architecture for Software- Defined Radio in Handheld Terminal Applications. IEEE Comm Mag, 37 (2), 90–95, 1999. [TI] Texas Instruments. TI & JAVA: Bringing the Revolution in Network Intelligence to Wireless Systems. (2001, March 16) [online] – URL: http://www.ti.com/sc/docs/apps/wireless/ techbrf.htm [Daneshgaran2001] Daneshgaran, F, Laddomada, M, Mondin, M. Reconfiguration Issues of Future Mobile Software Radio Platforms. Submitted to IEEE Pers Comm, 2001. [Mitola2000] Mitola III, J, Zvonar, Z. Software and DSP in Radio. IEEE Comm Mag, 38 (8), 140, 2000. [Laddomada2001] Laddomada, M et al. A PC- Based Software Radio Transceiver for Third Generation Communication Systems. Submitted to IEEE Comm Mag, 2001. [SDRForum] Software Defined Radio Forum. (2001, March 16) [online] – URL: http://www. sdrforum.org [Geppert2000] Geppert, L. Quantum Transistors: towards nanoelectronics. IEEE Spectrum, 37 (9), 46–51, 2000. [Lu2000] Lu, W W. Compact Multidimensional Broadband Wireless: The convergence of wireless mobile and access. IEEE Comm Mag, 38 (11), 119–123, 2000. [P921D1] Sanmateu, A et al. SDR and HFR for low cost radio independent access. EURESCOM P921 UMTS radio access project. (2001, March 16) [online] – URL: http://www.eurescom.de/ public/projects/P900-series/p921/ [Mohr2000] Mohr, W, Kornhäuser, W. Access Network Evolution Beyond Third Generation Mobile Communications. IEEE Comm Mag, 38 (12), 122–133, 2000. 39
Page 2 and 3: Telektronikk Volume 97 No. 1 - 2001
Page 4 and 5: Per Hjalmar Lehne (42) obtained his
Page 6 and 7: Stein Svaet (41) is Senior Research
Page 8 and 9: Pbit/day 6 150 125 100 75 50 25 0 F
Page 10 and 11: 8 Video communication as a utility
Page 12 and 13: 10 The idea of reconfigurable mobil
Page 14 and 15: 12 Switched lobe Dynamically phased
Page 16 and 17: Figure 10 The All IP vision Figure
Page 18 and 19: 16 The IP world has some problems t
Page 20 and 21: 18 Abbreviations and acronyms less
Page 22 and 23: Jorge Pereira (40) obtained his Eng
Page 24 and 25: (Millions) Figure 1 Exponential gro
Page 26 and 27: 24 Defining Generation based upon D
Page 28 and 29: Multi-mode Terminal by Software Rad
Page 30 and 31: distribution layer possible return
Page 32 and 33: 30 A Co-Ordinated Approach to 4G As
Page 34 and 35: Figure 2 Applications will grow fas
Page 36 and 37: Figure 5 Evolution from multi-mode
Page 38 and 39: Operator/Provider download librarie
Page 42 and 43: Dr. Techn. Jørgen Bach Andersen (6
Page 44 and 45: Figure 3 Two arrays with M and N el
Page 46 and 47: Figure 5 Cumulative probability dis
Page 48 and 49: Figure 8 As in Figure 5, but with F
Page 50 and 51: 48 Conclusion The challenge of prov
Page 52 and 53: 50 models are described simply by a
Page 54 and 55: 52 ping intervals or “quantizatio
Page 56 and 57: Figure 3 ASE as a function of the a
Page 58 and 59: 56 7 Conclusion and Further Researc
Page 60 and 61: Dave Wisely (39) graduated in 1982
Page 62 and 63: Figure 2 Business case study Figure
Page 64 and 65: Figure 6 BRAIN QoS architecture 62
Page 66 and 67: 64 4 BRAIN homepage. (2001, March 6
Page 68 and 69: Figure 2 The Bluetooth protocol sta
Page 70 and 71: Figure 5 A Bluetooth radio module i
Page 72 and 73: 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
Page 86 and 87: 84 IETF Internet Engineering Task F
Page 88 and 89: Figure 2-3 Mobile IPv6 architecture
Page 90 and 91:
88 domain, it attaches to a new lea
Page 92 and 93:
90 Domain GFA/MAP Figure 3-3 Archit
Page 94 and 95:
Geir Gylterud (35) is Research Scie
Page 96 and 97:
94 Framework Resource Resource Int
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
Page 112 and 113:
110 Box 1 - The Open Service Archit
Page 114 and 115:
112 X:User 1:Device 2:Device 3:Devi
Page 116 and 117:
Figure 10 Initiating call from PSTN
Page 118 and 119:
Figure 13 Splitting the incoming st
Page 120 and 121:
Figure 17 A set of communication de
Page 122 and 123:
120 Box 3 continued Session Descrip
Page 124 and 125:
Figure 21 A laptop and peripheral d
Page 126 and 127:
124 Box 4 - Bluetooth Bluetooth is
Page 128 and 129:
126 6 The ICEBERG project. (2001, M
Page 130 and 131:
128 new door towards the upcoming f
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
Page 138 and 139:
136 Telektronikk 1.2001
Page 140 and 141:
Anne Lise Lillebø (52) is Adviser
Page 142 and 143:
140 with other SDOs (Standards Deve
Page 144 and 145:
142 Box 2 - ETNO Declaration We, th
Page 146 and 147:
Arve Meisinset (52) is Senior Resea
Page 148 and 149:
146 In ITU-T we have seen needs to
Page 150 and 151:
148 Each viewpoint constitutes a se
Page 152 and 153:
Figure 2 UML class diagrams for tra
Page 154 and 155:
152 The functionality describing th
Page 156 and 157:
154 9 Potter, B et al. An introduct
show all

Wireless Future - Telenor

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?