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Technical Details
Technical Details
Technical Details
The LG 150 is a trimode phone that operates on both Code
Division Multiple Access (CDMA) frequencies: cellular
services at 800 MHz and Personal Communication Services
(PCS) at 1.9 GHz.
The LG 150 also works on Advanced Mobile Phone Service
(AMPS). Since this phone operates on these three Wireless
networks the call fail rate is less than on a conventional
dual-mode or single-mode 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. High-speed data transmission is also possible.
The following table lists some major CDMA standards.
CDMA Standard
Basic Air
Interface
TIA/EIA/IS-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.
Cellular base station
Cellular mobile station
PCS personal station
PCS base station
Speech CODEC
TIA/EIA/IS-634
TIA/EIA/IS/651
TIA/EIA/IS-41-C
TIA/EIA/IS-124
TIA/EIA/IS-97
TIA/EIA/IS-98
ANSI J-STD-018
ANSI J-STD-019
TIA/EIA/IS-125
TIA/EIA/IS-96-B
TIA/EIA/IS-99
TIA/EIA/IS-637
TIA/EIA/IS-657
IS-801
TIA/EIA/IS-707-A
Speech CODEC
Async Data and Fax
Short message service
Packet Data
Position Determination
Service (gpsOne)
High Speed Packet Data
Network
Service
Performance
Designator Description