CDMA 2000

Berdasar pada 2G cdmaOne (IS-95)
Mempunyai jaringan packet data
Dibagi menjadi 3 type
CDMA2000 1X RTT
• Kecepatan 153.6 kbps (Flexi), 307 kbps (versi berikutnya/upgrade)
CDMA2000 1X EV-DO
• Evolution Data Only, kecepatan maksimal 2,4 Mbps
CDMA2000 1X EV-DV
• Evolution Data and Voice, kec. 3,09 Mbps

Fitur CDMA 2000
Kapasitas voice tinggi:
CDMA2000-1X supports 35 traffic channels per sector per RF
Kecepatan data tinggi:
CDMA2000 1X: 153.6 kbps.
CDMA2000 1XEV-DO: 2.4 Mbps.
CDMA2000 1XEV-DV: 3.09 Mbps.
Band Frekuensi yang fleksibel
Jaringan CDMA2000 telah dibangun pada band 450 MHz, 800 MHz, 1700 MHz, dan 1900 MHz dan dapat juga di-implementasikan pada band 900 MHz and 1800 MHz.

CDMA2000-1xEVDO System Architecture (Basic)
BTS Base Station
Which creates a single cell
BSC Base Station Controller
Which controls roaming and channel allocations amongst various BSTs and is also referred to as a Radio Network Controller (RNC).
MSC Mobile Switching Center
Which performs the telephony switching functions and is usually connected to an SS7 network.
PDSN: Packet Data Serving Node
Maintains IP communications between all MNs and the Packet Data Network (PDN), which in this diagram is the Internet.

CDMA Basics
CDMA (Code Division Multiple Access) splits calls into fragments and send them over different frequencies simultaneously
The use of multiple frequencies gives CDMA effective protection against interference and lost calls
CDMA supports true packet switching and does not use time slots, therefore is more bandwidth efficient than TDMA -- also a more direct path to 3G
Current CDMA penetration in the world market is about 27%