Subject - LG VX10 Manual Del Usuario

Subject

The VX10 phone has been designed to operate on the
latest digital mobile communication technology, Code
Division Multiple Access (CDMA). This CDMA digital
technology has greatly enhanced voice clarity and can
provide a variety of advanced features. Currently, CDMA
mobile communication technology has been commercially
used in Cellular and Personal Communication Service
(PCS).
The difference between them is operating frequency
spectrum. Cellular uses 800Mhz and PCS uses 1.9Ghz.
The VX10 operates on both frequencies, this is
called a dual-band phone. Also, the VX10 works on
Advanced Mobile Phone Service (AMPS). We call it a tri-
mode phone. If one of the Cellular, PCS or AMPS base
stations is located nearby, call fail rate of a tri-mode
phone is less than a dual-mode phone or a single-mode
phone.
CDMA technology adopts DSSS (Direct Sequence
Spread Spectrum). DSSS enables the phone to keep
communication from being crossed and to use one
frequency channel by multiple users in the same specific
area, resulting in a 10 fold increase in capacity when
compared with the analog mode currently used.
Soft/Softer Handoff, Hard Handoff, and Dynamic RF
power Control technologies are combined into this phone
to reduce call interruptions.
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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). The following table lists some major
CDMA Standards.
Designator
CDMA Standard
TIA/EIA/IS-95-A
Basic air interface
ANSI J-STD-008
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-99
Service
TIA/EIA/IS-637
TIA/EIA/IS-657
TIA/EIA/IS-97
TIA/EIA/IS-98
Performance
ANSI J-STD-018
ANSI J-STD-019
TIA/EIA/IS-125
TSB -74: Protocol between an IS-95A system and ANSI J-
STD-008
1xRTT system receives subscribers in wireless section
twice as much as IS-95. Its battery life is twice as long as
IS-95. High-speed data transmission is also possible.
Description
Protocol between MS and BTS for Cellular & AMPS
Protocol between MS and BTS for PCS
MAS-BS
PCSC-RS
Intersystem operations
Nom-signaling data comm.
Speech CODEC
Assign data and fax
Short message service
Packet data
Cellular base station
Cellular mobile station
PCS personal station
PCS base station
Speech CODEC
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