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8 VX9400
Technical Details
area. This results in a 10-fold capacity increase when
compared with analog mode. In addition, features such
as soft/ softer handoff, hard handoff, and dynamic RF
power control technologies combine to reduce call
interruptions.
The Cellular and PCS CDMA networks consist of MSO
(Mobile Switching Office), BSC (Base Station Controller),
BTS (Base Station Transmission System), and MS (Mobile
Station).
1xRTT system receives twice as many subscribers in the
wireless section as IS-95. Its battery life is twice as long
as IS-95. High-speed data transmission is also possible.
EV-DO system is optimized for data service and is much
faster than 1xRTT system in applicable area.
V CAST Mobile TV uses a technology called MediaFLO.
This Technology is used to broadcast data to portable
devices such as cell phones and PDAs. Broadcast data
includes audio and video streams, individual video and
audio clips, as well as information such as stock market
quotes, sports scores, and weather reports. The "F-L-O" in
MediaFLO stands for Forward Link Only which means that
the data transmission path is one-way, from the tower to
the device. The MediaFLO system transmits data on a
frequency separate from the frequencies used by current
cellular networks.
The following table lists some major CDMA standards.
CDMA
Standard
Basic Air
Interface
TIA/EIA-95A
TSB-74
ANSI J-STD-008
TIA/EIA-IS2000
CDMA Dual Mode Air Interface
14.4kbps radio link protocol and
inter-band operations
IS-95 adapted for PCS frequency
band CDMA2000 1xRTT Air
Interface
MAS-BS
PCSC-RS
Intersystem operations
Non-signaling data comm.
CDMA2000 High Rate Packet Data Air
Interface
1xEV-DO Inter-Operability Specification for
HRPD Access Network Interfaces
Recommended Minimum Performance
Standards for HRPD High Rate Packet Data
Access Terminal
Test Application Specification(TAS) for High
Rate Packet Data Air Interface
TIA/EIA/IS-634
TIA/EIA/IS/651
TIA/EIA/IS-41-C
TIA/EIA/IS-124
TIA/EIA/IS-856
TIA/EIA/IS-878
TIA/EIA/IS-866
TIA/EIA/IS-890
TIA/EIA/IS-96-B
TIA/EIA/IS-637
TIA/EIA/IS-657
IS-801
TIA/EIA/IS-707-A
Speech CODEC
Short message service
Packet Data
Position Determination
Service (gpsOne)
High Speed Packet Data
Network
Service
1x EV-DO
Related
interface
Designator Description