Wcdma for umts radio access for third genergation mobile communacations phần 7 pps
Wcdma for umts radio access for third genergation mobile communacations phần 7 pps
... context
for any application, e.g. for presence. The third optimisation step is to use an existing PDP
0
200
400
600
800
1000
GPRS WCDMA
RACH
WCDMA
DCH
Milliseconds
Acceptable/good
quality for real ... transmission power is
presented.
264 WCDMA for UMTS
10.5 Packet Data System Performance
In this section, packet scheduling performance is analysed. First, link level performanc...
Wcdma for umts radio access for third genergation mobile communacations phần 10 ppsx
... 350
link budget, 1 87
CS networks, 77
Cu Interface, 76
WCDMA for UMTS, third edition. Edited by Harri Holma and Antti Toskala
# 2004 John Wiley & Sons, Ltd ISBN: 0- 470 - 870 96-6
Figure 13.3. ... MRF, 97
Media gateway control function, MGCF, 97
medium access control protocol, MAC,
150, 151
mobile equipment, ME 76
mobile services switching centre/visitor location
regis...
Wcdma for umts radio access for third genergation mobile communacations phần 2 pdf
... of the WCDMA waveform against interference is clearly
compromised. The performance of high bit rates with WCDMA is presented in Section 12.4.
Both base stations as well as mobiles for WCDMA use ... objective of defining a proposal for a UMTS
WCDMA for UMTS, third edition. Edited by Harri Holma and Antti Toskala
# 2004 John Wiley & Sons, Ltd ISBN: 0- 470 - 870 96-6
differ...
Wcdma for umts radio access for third genergation mobile communacations phần 3 doc
... System (UMTS) , Requirements for the UMTS Terrestrial
Radio Access System (UTRA), ETSI Technical Report, UMTS 21.01 version 3.0.1, November
19 97.
[6] Universal Mobile Telecommunications System (UMTS) , ... Procedures for the Choice of
Radio Transmission Technologies of the UMTS, ETSI Technical Report, UMTS 30.03 version
3.1.0, November 19 97.
[7] Universal Mobile Tele...
Wcdma for umts radio access for third genergation mobile communacations phần 4 potx
... 7. 7. Multiplexing of Radio
Bearers in the PDCP layer is not part of 3GPP Release ’99 but is one possible feature for
future releases. The multiplexing possibility is illustrated in Figure 7. 7 ... 1
Header
comp. entity
Alg.Type 2
PDU
numbering
PDU
numbering
PDCP SAPs
(Radio bearers)
Figure 7. 7. The PDCP layer architecture
160 WCDMA for UMTS
(i.e. change the fixed beam) of the...
Wcdma for umts radio access for third genergation mobile communacations phần 5 pdf
... capacity
7. 95 92 .7 80.9 Erl 87 % 84.2 Erl 4 %
12.2 60.5 50.1 Erl 83 % 52.8 Erl 5 %
16 39.0 30.1 Erl 77 % 32.3 Erl 7 %
32 19 .7 12.9 Erl 65 % 14.4 Erl 12 %
64 12.5 7. 0 Erl 56 % 8.2 Erl 17 %
144 ... system
Figure 7. 22. Inter-system handover procedure from UTRAN to GSM
Figure 7. 23. Inter-system handover procedure from GSM to UTRAN
178 WCDMA for UMTS
8.2.1 Radio Link Budg...
Wcdma for umts radio access for third genergation mobile communacations phần 6 doc
... loading: mobile speed 50 km/h, served users: 177 7
Cell ID Throughput UL (kbps) Throughput DL (kbps) UL loading SHO overhead
cell 1 672 .00 71 0. 67 0.58 0.29
cell 2 208 .70 216.00 0.33 0.50
cell 3 226. 67 ... SHO overhead
cell 1 72 8.00 72 0.00 0.51 0.34
cell 2 208 .70 216.00 0.29 0.50
cell 3 240.00 200.00 0.25 0.33
cell 4 73 0.55 76 0.00 0.44 0.20
cell 5 1162.52 78 0.92 0. 67 0.3...
Wcdma for umts radio access for third genergation mobile communacations phần 8 potx
... of HSDPA techniques for the uplink direction is under investigation in
3GPP for inclusion in forthcoming Releases, though the expected gain is not foreseen to
344 WCDMA for UMTS
11.8.3 User Scheduling, ... allocation) the macro cell coverage is
WCDMA for UMTS, third edition. Edited by Harri Holma and Antti Toskala
# 2004 John Wiley & Sons, Ltd ISBN: 0- 470 - 870 96-6
Figu...
Wcdma for umts radio access for third genergation mobile communacations phần 9 potx
... performance is obtaine d for high mobile
speeds, while close to the base station, low mobile speeds perform better. This behaviour can
be explained by the fact that for high mobile speeds interleaving ... 4.4 dB 3.0 dB 3.4 dB
356 WCDMA for UMTS
The choice of multiuser detection techniques for WCDMA base station receivers has been
studied [55–58]. Both the receiver performa...
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