LG Electronics MFL68526201 manual Technical Details, 114

Technical Details

Technical Details

The VN170 is an all digital 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.

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 table on the following page lists some major CDMA standards.

CDMA Standard	Designator	Description
	TIA/EIA-95A	CDMA Dual-Mode Air Interface
		14.4kbps radio link protocol and
Basic Air Interface	TSB-74
		inter-band operations
	ANSI J-STD-008
		IS-95 adapted for PCS frequency band
	TIA/EIA-IS2000
		CDMA2000 1xRTT Air Interface
	TIA/EIA/IS-634	MAS-BS
Network	TIA/EIA/IS-651	PCSC-RS
	TIA/EIA/IS-41-C	Intersystem operations
	TIA/EIA/IS-124	Non-signaling data comm.
	TIA/EIA/IS-96-B	Speech CODEC
Service	TIA/EIA/IS-637	Short Message Service
	TIA/EIA/IS-657	Packet Data
	IS-801	Position Determination Service (gpsOne)
	TIA/EIA/IS-707-A	High Speed Packet Data

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