Wcdma for umts radio access for third genergation mobile communacations phần 6 doc
Wcdma for umts radio access for third genergation mobile communacations phần 6 doc
... 2 26. 67 192.00 0.29 0.35
cell 4 721 .60 760 .00 0.50 0.12
cell 5 1101 .60 62 9.14 0.74 0.29
cell 6 772 .68 800.00 0 .60 0.27
MEAN 531.04 5 06. 62 0.45 0.39
Basic loading: mobile speed 50 km/h and 3 km/h, ... 84 .6 % 88.9 %
384 kbps 66 .9 % 71.4 %
Test mobile speed:
Basic loading: mobile ——————————————
speed 50 km/h 3 km/h 50 km/h
8 kbps 95.5 % 97.1 %
64 kbps 82.4 % 87.2 %
384 kbp...
Wcdma for umts radio access for third genergation mobile communacations phần 3 doc
... Mobile Radio Commu-
nications, PIMRC’97, Helsinki, Finland, 1–4 September 1997, pp. 42– 46.
[5] Universal Mobile Telecommunications System (UMTS) , Requirements for the UMTS Terrestrial
Radio Access ... and Mobile Radio Communications, PIMRC’97, Helsinki, Finland, 1–4 September 1997,
pp. 66 9 67 2.
[2] Nikula, E., Toskala, A., Dahlman, E., Girard, L. and Klein, A., ‘FRAMES...
Wcdma for umts radio access for third genergation mobile communacations phần 10 ppsx
... the focus has
WCDMA for UMTS, third edition. Edited by Harri Holma and Antti Toskala
# 2004 John Wiley & Sons, Ltd ISBN: 0-470-870 96- 6
Index
3GPP, 67
3GPP2, 70
16- QAM 312, 313
access service ... 1,2,3 dB 1,2,3 dB
422 WCDMA for UMTS
frame is divided into 15 time slots, each of 2 560 chips, i.e., the time slot duration is 66 6 ms.
Figure 13.4 shows the frame structure...
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 ... terminals
Figure 2.15. Example content download
26 WCDMA for UMTS
4
Background and Standardisation
of WCDMA
Antti Toskala
4.1 Introduction
In the first phase of third generation...
Wcdma for umts radio access for third genergation mobile communacations phần 4 potx
... 7.5 15 3 6 1–3 kbps
2 56 15 30 12–24 6 12 kbps
128 30 60 42–51 20–24 kbps
64 60 120 90 45 kbps
32 120 240 210 105 kbps
16 240 480 432 215 kbps
8 480 960 912 4 56 kbps
4 960 1920 1872 9 36 kbps
4, ... HSDPA
P-CPICH
beam
S-CPICH
beam
Node B
RNC
Received
SIRs for
beams
Phase
Reference
Reconfiguration
Figure 6. 30 Release 6 beamforming enhancement method
144 WCDMA for UMTS...
Wcdma for umts radio access for third genergation mobile communacations phần 5 pdf
... hand, WCDMA requires very linear base station power
amplifiers, which is challenging for the implementation.
154
1 56
158
160
162
164
166
168
170
100 150 200 250 300 350 400 450 500 550 60 0 65 0 700 ... presented.
Section 8 .6 presents the WCDMA frequency variants and their differences. These
frequency variants are needed in the first place to deploy WCDMA in the USA.
WC...
Wcdma for umts radio access for third genergation mobile communacations phần 7 pps
... with a three time slot GPRS mobile, like Nokia 66 00, with a
two time slot EDGE mobile, like Nokia 62 20, and with WCDMA bit rates of 128 kbps and
384 kbps, as in Nokia 760 0. EDGE modulation and coding ... context
for any application, e.g. for presence. The third optimisation step is to use an existing PDP
0
200
400
60 0
800
1000
GPRS WCDMA
RACH
WCDMA
DCH
Milliseconds
Accept...
Wcdma for umts radio access for third genergation mobile communacations phần 8 potx
... DSCH:
3 26 WCDMA for UMTS
rate for the connection. For example, with Adaptive Multirate (AMR) speech service and
packet data, the DCH capacity reserved is equal to the sum of the highest rate used for ... 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 f...
Wcdma for umts radio access for third genergation mobile communacations phần 9 potx
... loop
Multipath propagation
Correlation between
transmission antennas
152
154
1 56
158
160
162
164
166
168
170
100 200 300 400 500 60 0 700 800 900 1000 1100
Load [kbps]
Maximum path loss [dB]
Downlink ... in
−24
−22
−20
−18
− 16
−14
−12
−10
−8
I
c
/
l
or
[dB]
−10 −50 510152025
G
=
I
or
/
N
0
(dB)
3 km/h
50 km/h
120 km/h
Figure 12. 16. Effect of mobile speed in the ITU Pede...
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