Must-have Reference

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Excerpts:

Terms and Mnemonics

Note: Some of the terms referenced in these explanations are not limited to wireless applications, and thus are explained in Anritsu Company’s “Must-Have Reference For IP and Next Generation Networking”, which you can download at www.us.anritsu.com/musthave.

1G – First Generation Cellular Wireless

The first generation of cellular wireless (1G) was based on analog technology. The systems were designed only to carry voice technology.

1xEV-DO – 1x Evolution Data Only

1xEV-DO (cdma2000) is a 3G mobile standard that delivers a peak data rate of 2.4 Mbps using just 1.25 MHz of spectrum. This is the next Evolution of cdma2000, intended to provide powerful data transmission capabilities for mobile phones. This upgrade to cdma2000 requires a second 1.25 MHz channel that is used exclusively for data. Most cdma2000 network operators are expected to combine 1x and 1xEV-DO channels in their systems to provide varying voice and data capacities as required by customer demand. Qualcomm is driving this standard. Verizon

began deploying 1xEV-DO service trials in late 2003.

...

1xEV-DV – 1X Evolution Data and Voice

1xEV-DV (cdma2000) is a 3G mobile standard that promises to provide data-rate speeds of 1.2 Mbps for mobile users, with peak data speeds up to 5.2 Mbps for stationary users. This standard will integrate voice and simultaneous high-speed packet data multimedia services.

Nokia and Motorola are backing this standard. Sprint has proposed this service for 2005-2006.

1xRTT

1xRTT (cdma2000), the next generation of standard CDMA, offers between 1.5 and 2 times the number of voice channels as a standard CDMA system, peak data rates of 153 kbps and backwards compatibility with cdmaOne networks. 1x stands for one times 1.25 MHz carrier, as used in 2G CDMA. RTT stands for Radio Transmission Technology. cdma2000 1x is 21 times more efficient than analog cellular and 4 times more efficient than TDMA networks.

2G – Second Generation Cellular Wireless

2G cellular wireless technology converts voice to digital data for transmission over the air and then back to voice. Most 2G systems provide 9.6-14.4 Kbps circuit-switched data service.

2.5G – Second Generation + Cellular Wireless

2.5G refers to technology that is added to a 2G network to provide packet-data service. In practice, 2.5G is synonymous with the GPRS technology that has been added to GSM networks.

3G – Third Generation Cellular Wireless

3G systems have been designed for both voice and data. By International Telecommunications Union (ITU) definition, 3G systems must provide a minimum of 144 kbps packet-data service.

3GPP – Third Generation Partnership Project

3GPP is a global body dedicated to developing 3G specifications. In 1997-98, Nokia was active in establishing 3GPP as the organization for developing global 3G standards based on W-CDMA technology. Specifications for W-CDMA radio access networks were rapidly established and in 2000, Nokia promoted the transfer of GSM/EDGE standardization to 3GPP. The first commercial W-CDMA products were released based on the 3GPP Release99. Standardization continues with Releases 4, 5 and 6.

3GPP2 – Third Generation Partnership Project 2

3GPP2 is a collaborative Third Generation (3G) telecommunications specification-setting project comprising North American and Asian interests on the development of the next generation cdma2000 wireless communications. 3GPP2 is largely based on Qualcomm cdma2000 product standards.

3GSM

3GSM is another name for the W-CDMA 3G standard. (See 3G.)

3GSP – 3G Service Provider

A mobile operator that has a 3G license to provide 3G services to customers.

3xEV-DO/DV – 3X Evolution Data Only/Data and Voice

Enhanced versions of 1XEV-DO or 1xEV-DV with three channels of data/voice. The details of 3xEV are unclear, and this service is likely 4-5 years in the future.

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[IC£MAN 0]

Great info mate ... Thanks