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8 VX5300
Welcome
CDMA technology uses a feature called DSSS
(Direct Sequence Spread Spectrum) that enables
the phone to keep communication from being
crossed and to use one frequency channel by
multiple users in the same specific 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).
*
TSB-74: Protocol between an IS-95A system and
ANSI J-STD-008
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.
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
ANSI TIA/EIA 553A
CDMA Tri-Mode Air Interface
14.4kbps radio link protocol and
inter-band operations
IS-95 adapted for PCS frequency band
CDMA2000 1xRTT AirInterface
Advanced Mobile Phone Service
MAS-BS
PCSC-RS
Intersystem operations
Non-signaling data comm.
CDMA2000 High Rate Packet Data Air
Interface
1xEV-DO Inter-Operability Specification for
CDMA2000 Access Network Interfaces
Recommended Minimum Performance
Standards for CDMA2000 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