Enhanced Radio Access Technologies for Next Generation Mobile Communication phần 2 pdf
Enhanced Radio Access Technologies for Next Generation Mobile Communication phần 2 pdf
... multiple access (TDMA), and code division multiple access (CDMA).
39
Y. Park and F. Adachi (eds.), Enhanced Radio Access Technologies for Next Generation Mobile
Communication, 39–79.
© 20 07 Springer.
RADIO ... codec H .26 4/MPEG4 H .26 4/MPEG2 H .26 4/MPEG2 H .26 4/MPEG2
Channel BW/Rate 6MHz/9.2Mbps 5∼8MHz/
11.2Mbps
8MHz/
15Mbps
6MHz/
23 Mbps
Modulation OFDM OFDM OFD...
Enhanced Radio Access Technologies for Next Generation Mobile Communication phần 10 pptx
... parameters
8 02. 11 8 02. 11a 8 02. 11b 8 02. 11g 8 02. 11n
Release Date 1997 1999 1999 20 03 Expected
mid .20 07
Frequency band 2. 4 GHz 5 GHz 2. 4 GHz 2. 4 GHz 2. 4 GHz
Data Rate (typical) 1 Mbps 25 Mbps 6.5 Mbps 25 ... downloading information, exchanging
email, and instant messaging).
1
Y. Park and F. Adachi (eds.), Enhanced Radio Access Technologies for Next Generation...
Enhanced Radio Access Technologies for Next Generation Mobile Communication phần 3 doc
... +m
2
p
2
t =
=
2 20 0 20 2 22 0 020 2
At the receiver of user B, the composite signal is multiplied by the PN code
corresponding to the user B:
stp
2
t =
2 20 0 20 22 20 020 2
60 CHAPTER 2
15
15
10
10
5
5
0
0
–5
–5
–10
–10
–15
–15
0 ... 1
m
2
(t) × p
2
(t)
–1
1 1
–1
1
–1 –1
2
2 2
2
s(t)
2
2
2
2 2
2 2
s(t) × p
2
(t)
2
2
2
1
1
m
2
(t)
~
: User...
Enhanced Radio Access Technologies for Next Generation Mobile Communication phần 4 docx
... variance 2
2
. The LLR
is given by
(47) Lb = ln
⎡
⎢
⎢
⎢
⎣
ˆsb=1
1
√
2
2
exp
−
1
2
2
ˆ
d
c
n −
2E
c
T
c
˜
Hˆs
2
ˆsb=0
1
√
2
2
exp
−
1
2
2
ˆ
d
c
n −
2E
c
T
c
˜
Hˆs
2
⎤
⎥
⎥
⎥
⎦
1 02 ... or 0
1
√
2
2
exp
⎛
⎝
−
1
2
2
ˆ
d
c
n −
2E
c
T
c
˜
Hˆs
2
⎞
⎠
≈ max
ˆsb=1 or 0
1
√
2
2
exp
⎛...
Enhanced Radio Access Technologies for Next Generation Mobile Communication phần 5 ppt
... as
y
Mij
p
=
1
t
M
iT
M
+t
M
iT
M
r
M
te
2 f
j
−1P+p
t−iT
M
dt
=
K
k=1
z
kj
p
c
kj
a
kip
+n
Mj
p
(67)
144 CHAPTER 4
12
1
2
2
2
3
2
4
2
5
1
10
–1
10
2
10
–3
10
–4
1
1
10
–1
10
2
10
–3
10
–4
2
1
2
2
2
3
2
4
2
5
BER
Number of Users
Frequency-Selective Slow Rayleigh ... such as in future
121
Y. Park and F. Adachi (eds.), Enhanced Radi...
Enhanced Radio Access Technologies for Next Generation Mobile Communication phần 6 potx
... Urban / Macro
Service type Voice Data
Spreading rate 111111
Chip rate [bps] 122 8800 122 8800 122 8800 122 8800 122 8800 122 8800
Bit rate [bps] 9600 9600 76800 76800 153600 153600
Test invironment Pedestrian ... pp.107–114, Sept.
1996.
Table 2. 1xEV-DO Forward Link Modulation
Physical Layer Parameters
Data Rates (kbps) 38.4 76.8 153.6 307 .2 307 .2 614.4 614.4 921 .6 122 8.8 122 2.8 1843...
Enhanced Radio Access Technologies for Next Generation Mobile Communication phần 7 doc
... 1
307 .2 4 2, 048 3,0 72 6 ,27 2 2 128 1/3 2. 04
614.4 2 2,048 3,0 72 3,136 1 64 1/3 1. 02
1 ,22 8.8 1 2, 048 3,0 72 1,536 0 1,536 2/ 3 1
921 .6 2 3,0 72 3,0 72 3,136 1 64 1/3 1. 02
1,843 .2 1 3,0 72 3,0 72 1,536 ... Repetition
Factor
38.4 16 1, 024 2. 560 24 ,576 9 1,536 1/5 9.6
76.8 8 1, 024 2, 560 12, 288 4 2, 048 1/5 4.8
153.6 4 1, 024 2, 560 6,144 2 1, 024 1/...
Enhanced Radio Access Technologies for Next Generation Mobile Communication phần 8 pot
... aspects.
21 7
Y. Park and F. Adachi (eds.), Enhanced Radio Access Technologies for Next Generation Mobile
Communication, 21 7 27 6.
© 20 07 Springer.
EVOLVED UTRA TECHNOLOGIES 22 1
wireless channel between the ... (4.69/9) × 6,
(5 .21 /10) × 1
(4.69/18) × 6,
(5 .21 /20 ) × 1
(4.69/36) × 6,
(5 .21 /40) × 1
(4.69/ 72) × 6,
(5 .21 /80) × 1
(4.69/108) × 6,
(5 .21 / 120 ) ×...
Enhanced Radio Access Technologies for Next Generation Mobile Communication phần 9 pot
... 1 and 2/ 3 for UE 2
Cat. 1 and 2/ 3 for UE 3
Cat. 1 for UE 1
Cat. 1 for UE 2
Cat. 1 for UE 3
Cat. 2/ 3 for UE 1
Cat. 2/ 3 for UE 2
Cat. 2/ 3 for UE 3
Figure 13. Channel coding scheme for L1/L2 control ... information
for multiple users
4
3
2
Option
Cat. 1 and 2/ 3 for multiple sets of
UE
Cat. 2/ 3 for UE 2
Cat. 1 for
multiple sets
of UE
Cat. 2/ 3...
Enhanced Radio Access Technologies for Next Generation Mobile Communication pptx
... parameters
8 02. 11 8 02. 11a 8 02. 11b 8 02. 11g 8 02. 11n
Release Date 1997 1999 1999 20 03 Expected
mid .20 07
Frequency band 2. 4 GHz 5 GHz 2. 4 GHz 2. 4 GHz 2. 4 GHz
Data Rate (typical) 1 Mbps 25 Mbps 6.5 Mbps 25 ... multiple access (TDMA), and code division multiple access (CDMA).
39
Y. Park and F. Adachi (eds.), Enhanced Radio Access Technologies for Next Genera...
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