LG Electronics AX4270 TSB-74 Protocol between an IS-95A system and Ansi J- STD-008, Description

Welcome

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). The following table lists some major CDMA standards.

*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.

CDMA	Designator	Description
Standard
	TIA/EIA-95A	CDMA Dual-Mode Air Interface
	TSB-74	14.4kbps radio link protocol and
Basic Air	ANSI J-STD-008	inter-band operations
		IS-95 adapted for PCS frequency
Interface	TIA/EIA-IS2000
		band cdma2000 1xRTT
	ANSI TIA/EIA	AirInterface
	553A	Advanced Mobile Phone Service
	TIA/EIA/IS-634	MAS-BS
Network	TIA/EIA/IS/651	PCSC-RS
	TIA/EIA/IS-41-C	Intersystem operations
	TIA/EIA/IS-124	Nom-signaling data comm.
	TIA/EIA/IS-96-B	Speech CODEC
	TIA/EIA/IS-99	Async Data and Fax
	TIA/EIA/IS-637	Short message service
Service	TIA/EIA/IS-657	Packet Data
	IS-801	Position Determination
		Service (gpsOne)
	TIA/EIA/IS-707-A	High Speed Packet Data
	TIA/EIA/IS-97	Cellular base station
Performance	TIA/EIA/IS-98	Cellular mobile station
	ANSI J-STD-018	PCS personal station
	ANSI J-STD-019	PCS base station
	TIA/EIA/IS-125	Speech CODEC

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