Lg Electronics LGC500W Manual De Usuario

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LGIC

LG Information & Communications, Ltd.

The LGC-500W cellular phone functions as both analog cellular phone worked in AMPS (Advanced Mobile

Phone Service) mode and digital cellular phone worked in CDMA (Code Division Multiple Access) mode.

CDMA mode applies the DSSS (Direct Sequence Spread Spectrum) technique that has been used in military.

This technique enable to share one frequency channel with many users in the same specific area. As a result, that

it increases the capacity 10 times more compared with that in the analog mode (AMPS) currently used.

Soft/Softer Handoff, Hard Handoff, and Dynamic RF power Control technologies are combined into this phone

to reduce the call being interrupted in a middle of talking over phone.

CDMA digital cellular network consists of MSC (Mobile Switching Office), BSC (Base Station Controller), BTS

(Base station Transmission System), and MS (Mobile Station). Communication between MS and BTS is

designed to meet the specification of IS-95A (Common Air Interface). MS meets the specifications of the below :

     - IS-95A (Common Air Interface) : Protocol between MS and BTS

     - IS-96A (Vocoder) : Voice signal coding

     - IS-98 : Basic MS functions

     - IS-126 : Voice loopback

     - IS-99 : Short Message Service, Asynchronous Data Service, and G3 Fax Service

LGC-500W is composed of a transceiver, a desktop charger, two Li-Ion Batteries (1650mAh), a hands-free kit,

a travel charger. In digital mode, the hands-free kit is designed to operate in full duplex.

 General Introduction