LG VX3450 User Manual page 10

Welcome
than on a conventional dual-mode or singlemode
phone.
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.
The following table lists some major CDMA
standards.
8
VX3450
CDMA
Designator
Standard
TIA/EIA-95A
TSB-74
Basic Air
ANSI J-STD-008
Interface
TIA/EIA-IS2000
ANSI TIA/EIA 553A
TIA/EIA/IS-634
TIA/EIA/IS/651
Network
TIA/EIA/IS-41-C
TIA/EIA/IS-124
TIA/EIA/IS-96-B
TIA/EIA/IS-637
Service
IS-801
TIA/EIA/IS-97
TIA/EIA/IS-98
Performance
ANSI J-STD-018
ANSI J-STD-019
TIA/EIA/IS-125
Description
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.
Speech CODEC
Short message service
Position Determination
Service (gpsOne)
Cellular base station
Cellular mobile station
PCS personal station
PCS base station
Speech CODEC