TECHNICAL DETAILS

Technical Details

The AX245 is a trimode phone that operates on both (Code Division Multiple Access CDMA) frequencies: cellular services at 800 MHz and (Personal

TECHNICAL

Communication Services PCS) at 1.9 GHz. Also, the

 

 

AX245works on Advanced Mobile Phone Service. We

 

call it a tri-mode phone. Since the phone operates on

 

Cellular, PCS and AMPS, the call fail rate is less than on

DETAILS

a conventional dual-mode or single-mode phone.

Sequence Spread Spectrum) that enables the phone to

 

CDMA technology uses a feature called DSSS (Direct

 

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.

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LG Electronics AX245 manual Technical Details