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13
Main Content
1
First Generation
2 2nd Generation
3
3rd Generation
4
Beyond 3G
.
14
3 3rd Generation characteristic(1/6)
Highest speed
.
enhance the quality and clarity
Movie clips
. 19
3 3rd Generation characteristic(6/6)
Very quick downloads
. 20
Main Content
1
First Generation
2
2nd Generation
3
3rd Generation
4
Beyond 3G
.
21
4 Beyond 3G
.
better quality and faster access to the internet
17
3 3rd Generation characteristic(4/6)
feature highlights of popular sports
. 18
3 3rd Generation characteristic(5/6)
15
3 3rd Generation characteristic(2/6)
Flexible wireless access
.
highlights of popular sports and shows
16
3 3rd Generation characteristic(3/6)
Faster connectivity, music entertainment
History Of Mobile Communication
BSS
MS
Um
OMC-R
MS
BTS
BTS
BTS
BSC A Interface MSC
MS
Abis
.
2011.10.01
1
Contact Method
Speaker
TianJin University
School Of Electronic And Information Engineering
2 2nd Generation
3
3rd Generation
4
Beyond 3G
.
5
1 First Generation Mobile Communication
Bored in 70s
Technology
Analog voice modulation
FDM. A
6
FDMA Principle
Address：
Telephone：
.
E-mail：
2
Trend
Rate
Analog 2G 3G
t 4G .
wenku.baidu.com
3
Main Content
1 First Generation
2 2nd Generation 3 3rd Generation
4
Beyond 3G
.
4
Main Content
1 First Generation
High speed Strong flexibility
Highly self-organizing and adaptive network
.
Green communication
22
4 4G
High speed
. 23
4 Green communication
. 24
Thank you
. 25
Multiple Access
GSM phone
10
CDMA phone
Cellular Networks
. 11
Cellular Networks
. 12
2G Merits
➢Digital cellular systems ➢Supporting high bit rate voice, limited data communication ➢Improved quality
2
2nd Generation
3
3rd Generation
4
Beyond 3G
.
9
2 2nd Generation
Be centre of voice transmission technology
2G
Global System for
Code Division
.
Mobile communication
time
.
frequency
7
1 Features of 1G
Analog cellular systems
Only carry voice traffic
Less secure
8
1G
Prone to Interference
.
Poor call quality
Main Content
1
First Generation
13
Main Content
1
First Generation
2 2nd Generation
3
3rd Generation
4
Beyond 3G
.
14
3 3rd Generation characteristic(1/6)
Highest speed
.
enhance the quality and clarity
Movie clips
. 19
3 3rd Generation characteristic(6/6)
Very quick downloads
. 20
Main Content
1
First Generation
2
2nd Generation
3
3rd Generation
4
Beyond 3G
.
21
4 Beyond 3G
.
better quality and faster access to the internet
17
3 3rd Generation characteristic(4/6)
feature highlights of popular sports
. 18
3 3rd Generation characteristic(5/6)
15
3 3rd Generation characteristic(2/6)
Flexible wireless access
.
highlights of popular sports and shows
16
3 3rd Generation characteristic(3/6)
Faster connectivity, music entertainment
History Of Mobile Communication
BSS
MS
Um
OMC-R
MS
BTS
BTS
BTS
BSC A Interface MSC
MS
Abis
.
2011.10.01
1
Contact Method
Speaker
TianJin University
School Of Electronic And Information Engineering
2 2nd Generation
3
3rd Generation
4
Beyond 3G
.
5
1 First Generation Mobile Communication
Bored in 70s
Technology
Analog voice modulation
FDM. A
6
FDMA Principle
Address：
Telephone：
.
E-mail：
2
Trend
Rate
Analog 2G 3G
t 4G .
wenku.baidu.com
3
Main Content
1 First Generation
2 2nd Generation 3 3rd Generation
4
Beyond 3G
.
4
Main Content
1 First Generation
High speed Strong flexibility
Highly self-organizing and adaptive network
.
Green communication
22
4 4G
High speed
. 23
4 Green communication
. 24
Thank you
. 25
Multiple Access
GSM phone
10
CDMA phone
Cellular Networks
. 11
Cellular Networks
. 12
2G Merits
➢Digital cellular systems ➢Supporting high bit rate voice, limited data communication ➢Improved quality
2
2nd Generation
3
3rd Generation
4
Beyond 3G
.
9
2 2nd Generation
Be centre of voice transmission technology
2G
Global System for
Code Division
.
Mobile communication
time
.
frequency
7
1 Features of 1G
Analog cellular systems
Only carry voice traffic
Less secure
8
1G
Prone to Interference
.
Poor call quality
Main Content
1
First Generation