CDMA2000® 1xRTT

CDMA2000 1xEV-DO Technology Overview

CDMA2000®, also known as CDMA2000® 1xRTT, 1X or IS-2000, is a 3G mobile telecommunications standard for wireless transmission of voice and data through networks deployed worldwide.

CDMA2000®, which is derived from IS-95, contains an additional 64 traffic channels on the forward link that are orthogonal to the original ones. The radio channel bandwidth of CDMA2000® is 1.25 MHz.

Peak data rates on both links are limited to 153 kbit/s in Release 0 and to 307 kbit/s in Revision A.

CDMA2000® is based on code division multiplex access (CDMA), where all users share the same 1.25 MHz-wide channel, but use individual pseudo noise (PN) sequences for differentiation. CDMA2000® provides downward compatibility with cdmaOne (IS-95).

The new 1xRTT Revision E expands voice capacity by supporting new radio configurations, and it contains enhanced features such as femtocell support, geolocation support and cell identification broadcast messaging.

Deployment Scenario

As the first IMT-2000 technology, CDMA2000® was deployed worldwide in October 2000, except in Central Europe.

Most existing cdmaOne networks were updated to CDMA2000®. In the upward development of 3GPP2 technologies with 1xEV-DO, hybrid mode was introduced to enable data transmission between base station and terminal either with CDMA2000® or 1xEV-DO. CDMA2000® and all 1xEV-DO technologies also operate on the CDMA2000® frequency bands.

Rohde & Schwarz Test Solutions

Rohde & Schwarz supports 1xRTT with a broad product portfolio for transmitter and receiver tests, radiocommunications, application testing and drive test solutions. Mainly implemented as software and firmware options in multistandard devices, these solutions can be updated when standards are modified.

Key Parameters

	CDMA2000® 1xRTT
Frequency Range	Show / Hide band classes (BC) BC0) 800 MHz Band UL: 815 MHz - 849 MHz DL: 860 MHz - 894 MHz BC1) 1900 MHz Band UL: 1850 MHz - 1910 MHz DL: 1930 MHz - 1990 MHz BC2) TACS Band UL: 872 MHz - 915 MHz DL: 917 MHz - 960 MHz BC3) JTACS Band UL: 887 MHz - 925 MHz DL: 832 MHz - 870 MHz BC4) Korean PCS Band UL: 1750 MHz - 1780 MHz DL: 1840 MHz - 1870 MHz BC5) 450 MHz Band UL: 410 MHz - 483 MHz DL: 420 MHz - 493 MHz BC6) 2 GHz Band UL: 1920 MHz - 1980 MHz DL: 2110 MHz - 2170 MHz BC7) 700 MHz Band UL: 776 MHz - 794 MHz DL: 746 MHz - 764 MHz BC8) 1800 MHz Band UL: 1710 MHz - 1785 MHz DL: 1805 MHz - 1880 MHz BC9) 900 MHz Band UL: 880 MHz - 915 MHz DL: 925 MHz - 960 MHz BC10) Secondary 800 MHz Band UL: 806 MHz - 901 MHz DL: 851 MHz - 940 MHz BC11) 400 MHz European PAMR Band UL: 410 MHz - 483 MHz DL: 420 MHz - 493 MHz BC12) 800 MHz PAMR Band UL: 870 MHz - 876 MHz DL: 915 MHz - 921 MHz BC13) 2.5 GHz IMT-2000 Extension Band UL: 2500 MHz - 2570 MHz DL: 2620 MHz - 2690 MHz BC14) US PCS 1.9 GHz Band UL: 1850 MHz - 1915 MHz DL: 1930 MHz - 1995 MHz BC15) AWS Band UL: 1710 MHz - 1755 MHz DL: 2110 MHz - 2155 MHz BC16) US 2.5 GHz Band UL: 2502 MHz - 2568 MHz DL: 2624 MHz - 2690 MHz BC17) US 2.5 GHz Forward Link Only Band DL: 2624 MHz to 2690 MHz BC18) 700 MHz Public Safety Band UL: 757 MHz - 769 MHz DL: 787 MHz - 799 MHz BC19) Lower 700 MHz Band UL: 728 MHz - 746 MHz DL: 698 MHz - 716 MHz
Modulation	QPSK (DL) OQPSK, HPSK (UL)
Multiple Access	CDMA
Duplex (Uplink/Downlink)	FDD
Channel Bandwidth	1.25 MHz
Peak Data Rate	307.7 kbit/s

Standardization

CDMA2000® was specified by 3GPP2 (3rd Generation Partnership Project 2). The following link provides access to 3GPP2 specifications: http://www.3gpp2.org/Public_html/specs/index.cfm

CDMA2000® is a registered trademark of the Telecommunications Industry Association (TIA -USA).

CDMA2000® 1xRTT

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