|
PCS (PCN) - 1900 - () CDMA
| - 2,5G 3G
| 
| EDGE (GSM/EDGE)
( GPRS )
( - - GSM) -
900,0
| GPRS (GSM/GPRS)
( )
I-e - 900,0
II-e -
1800,0
| UMTS
(IMT-2000/UMTS)
( 2000)
1900,0
| | .,
|
|
| 1920,0-1980,0
| | .,
|
|
| 2110,0-2170,0
| | R ,
|
|
| 50,0
| | , /
| 144,0 - 120,0/
384,0 -
2,048,0 - 0,0/
| 171,2 - 8 ,
:
9,6 - CS1
14,4 - CS2
15,6 - CS3
21,4 - CS4
| 171,2 - 8 ,
:
9,6 - CS1
14,4 - CS2
15,6 - CS3
21,4 - CS4
960,0 15
| |
|
|
|
( QPSK - 16 ,
QAM - 64 )
| | ,
|
|
| 190,0
| | ,
| 200,0
| 200,0
| 200,0
| |
| TDMA
| TDMA
| QPSK QAM
| |
|
|
|
| |
|
|
|
| |
|
|
|
| | MS,
| 20,0
| 20,0
| 27,2
| | - IS
| IS-136 ( D-AMPS)
|
|
| |
| 1999.
|
| 1998.
| |
| .
| , ...
| ...
| * EDGE N-AMPS, D-AMPS (IS-54)
 3,5G 4G
| |
| W-CDMA FDD
(W) CDMA, (FDD),
2100,0
| UTRA TDD - .
UTRA FDD - .
UTRA
( IMT 2000)
- (UMTS),
| GMM
()
| | .,
.,
| 1920,0 - 1980,0 .
2110,0 - 2170,0 .
| 1900,0-1920,0 .
2010,0-2025,0 .
|
| |
| DS-CDMA
| TD-CDMA
|
| | ,
| 25,0; 27,5; 215,0
| 5,0
|
| | ,
| 200,0
| 200,0
|
| |
|
|
|
| | , /
| 0,384 120/
2,048 0,0/
| 2,048
|
| | ,
|
| 190,0
|
| | , /
| 0,384 120/
2,048 0,0/
| 0,384 120/
2,048 0,0/
|
| |
| QPSK -
| QPSK - + QAM
|
| | , /
| 1600,0
| 100,0 - 800,0
|
| | ,
|
| 27,2
|
| | ,
| 57,0
| 106,0
|
| | ,
| ~5,8
| ~6,0
|
| |
|
|
|
| |
| , ...,
| ...
| ...
| | 4G 5G
|
| 
| H-SCSD -
( GSM)
| H-SDPA - BTS MS - .
( CDMA),
HS-DSCH - (TDMA+CDMA)
| H-SUPA - -
W-CDMA -
H-SDPA
|
| | .,
|
|
|
|
| | .,
|
|
|
|
| | R ,
|
|
|
|
| | , /
| 384,0 - 3000,0
| 384,0 - 3000,0
| 2000,0 - .
3600,0 - .
|
| | ()
|
|
|
|
| | ,
|
|
|
|
| | ,
|
|
|
|
| |
| TDMA
| QPSK QAM
| QPSK QAM
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| | MS,
|
|
|
|
| | - IS
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
| WiMAX
( WMAN)
|
|
| | | | | | | | | 4G 5G
| 
| IPv6 - ( ) - IP 6
| I-MODE - ()
|
| | .,
| 40,0
|
|
| | .,
| 60,0
|
|
| | R ,
|
|
|
| | , /
| 100,0 - 1000,0
|
|
| | ()
|
|
|
| | ,
|
|
|
| | ,
|
|
|
| |
| OFDM - ;
QPSK QAM, (9,6/)
|
|
| |
|
|
|
| |
|
|
|
| |
|
|
|
| | MS,
|
|
|
| | - IS
|
|
|
| |
| 2010 - 2012
|
|
| |
| , , ...
| ...
|
| |
|
|
|
|
: 2016-03-28; !; : 772 |
:
:
1652 -  | 1473 - 
© 2015-2024 lektsii.org - - |
