Chapter 5 WAN Setup

3G Comparison Table

See the following table for a comparison between 2G, 2.5G, 2.75G and 3G wireless technologies.

Table 31 2G, 2.5G, 2.75G, 3G and 3.5G Wireless Technologies

NAME

TYPE

MOBILE PHONE AND DATA STANDARDS

DATA

 

 

GSM-BASED

CDMA-BASED

SPEED

 

 

 

 

 

 

2G

Circuit-

GSM (Global System for Mobile

Interim Standard 95 (IS-95), the Slow

 

switched

Communications), Personal

first CDMA-based digital cellular

 

 

 

 

Handy-phone System (PHS), etc.

standard pioneered by Qualcomm.

 

 

 

 

 

The brand name for IS-95 is

 

 

 

 

 

 

 

 

 

 

cdmaOne. IS-95 is also known as

 

 

 

 

 

TIA-EIA-95.

 

 

 

 

 

 

 

 

2.5G

Packet-

GPRS (General Packet Radio

CDMA2000 is a hybrid 2.5G / 3G

 

 

 

switched

Services), High-Speed Circuit-

protocol of mobile

 

 

 

 

Switched Data (HSCSD), etc.

telecommunications standards that

 

 

 

 

 

use CDMA, a multiple access

 

 

2.75G

Packet-

Enhanced Data rates for GSM

 

 

scheme for digital radio.

 

 

 

switched

Evolution (EDGE), Enhanced

 

 

 

 

 

 

 

 

GPRS (EGPRS), etc.

CDMA2000 1xRTT (1 times Radio

 

 

 

 

 

 

 

 

 

 

Transmission Technology) is the

 

 

 

 

 

core CDMA2000 wireless air

 

 

 

 

 

interface standard. It is also known

 

 

 

 

 

as 1x, 1xRTT, or IS-2000 and

 

 

 

 

 

considered to be a 2.5G or 2.75G

 

 

 

 

 

technology.

 

 

 

 

 

 

 

 

3G

Packet-

UMTS (Universal Mobile

CDMA2000 EV-DO (Evolution-Data

 

 

 

switched

Telecommunications System), a

Optimized, originally 1x Evolution-

 

 

 

 

third-generation (3G) wireless

Data Only), also referred to as EV-

 

 

 

 

standard defined in ITUA

DO, EVDO, or just EV, is an

 

 

 

 

specification, is sometimes

evolution of CDMA2000 1xRTT and

 

 

 

 

marketed as 3GSM. The UMTS

enables high-speed wireless

 

 

 

 

uses GSM infrastructures and W-

connectivity. It is also denoted as

 

 

 

 

CDMA (Wideband Code Division

IS-856 or High Data Rate (HDR).

 

 

 

 

Multiple Access) as the air

 

 

 

 

 

interface.

 

 

 

 

 

 

 

 

 

3.5G

Packet-

HSDPA (High-Speed Downlink

 

 

 

 

switched

Packet Access) is a mobile

 

 

 

 

 

telephony protocol, used for

 

 

 

 

 

UMTS-based 3G networks and

 

 

 

 

 

allows for higher data transfer

 

 

 

 

 

speeds.

 

 

 

 

 

 

 

 

 

Fast

A.The International Telecommunication Union (ITU) is an international organization within which governments and the private sector coordinate global telecom networks and services.

 

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P-2812HNU-51c User’s Guide