The document discusses the evolution of wireless communication standards across multiple generations from 2G to 4G. It provides information on key technologies, geographic areas covered, channel spacing, and access methods for each generation and major family. Major standards included GSM, CDMA, UMTS, LTE, WiMAX, and CDMA2000 across the 2G, 2.5G, 3G, 3.5G and 4G generations.

1. Wireless Standards - Generations M2M COMMUNICATIONS WIRELESS APPLICATIONS MOBILE APPLICATION DEVELOPMENT WIRELESS COMMUNICATION CHIPSETS AND MOBILE DEVICES DIGITAL SIGNAL PROCESSING AND DATA ACQUISTION WIRELESS TEST AND MEASUREMENT

2. 2G (source Wikipedia) M2M COMMUNICATIONS WIRELESS APPLICATIONS Family Technology Geographical Areas Channel Spacing Access Method Description GSM/3GPP GSM.CSD Worldwide 200 khz TDMA GSM is most widely used cellular Technology . 3GPP2 cdmaOne(IS-95) Americas, Asia, some others 1.25 Mhz CDMA This is a brand name for cellular technology with standard reference IS95. AMPS D-AMPS(IS-54 and IS-136) United states, Canada 25 khz TDMA D-AMPS uses existing AMPS channels and allows for smooth transition between digital and analog systems in same area. Other CDPN.IDEN.PDC.PHS Japan 30 khz TDMA The System found only in japan with very widespread use. MOBILE APPLICATION DEVELOPMENT WIRELESS COMMUNICATION CHIPSETS AND MOBILE DEVICES DIGITAL SIGNAL PROCESSING AND DATA ACQUISTION WIRELESS TEST AND MEASUREMENT

3. 2G Transitional (source Wikipedia) M2M COMMUNICATIONS WIRELESS APPLICATIONS Family Technology Geographical Areas Channel Spacing Access Method Description GSM/3GPP HSCSD.GPRS.EDGE/EGPRS Worldwide, except Japan and South Korea 200 khz TDMA GSM is most widely used cellular Technology . 3GPP2 CDMA2000 1xRTT(IS-2000) Americas, Asia, some others 1.25 Mhz CDMA This is a core wireless 2000 air interface standard. Other WiDEN United States 25 khz TDMA Is Wideband Integrated Digital enhanced network developed by Motorola for its iDEN MOBILE APPLICATION DEVELOPMENT WIRELESS COMMUNICATION CHIPSETS AND MOBILE DEVICES DIGITAL SIGNAL PROCESSING AND DATA ACQUISTION WIRELESS TEST AND MEASUREMENT

4. 3G (source Wikipedia) M2M COMMUNICATIONS WIRELESS APPLICATIONS Family Technology Geographical Areas Channel Spacing Access Method Description 3GPP UMTS(UTRAN). WCDMA-FDD.WCDMA-TDD.UTRA-TDD LCR(TD-SCDMA) Europe China Worldwide 5 Mhz CDMA Family of revolutionary upgrades to earlier GSM family 3GPP2 CDMA 2000 1xEV-DO(IS-856) Americas, Asia, some others 1.25 Mhz CDMA Evolutionary upgrade to cdmaOne (IS-95) MOBILE APPLICATION DEVELOPMENT WIRELESS COMMUNICATION CHIPSETS AND MOBILE DEVICES DIGITAL SIGNAL PROCESSING AND DATA ACQUISTION WIRELESS TEST AND MEASUREMENT

5. 3G Transitional (source Wikipedia ) M2M COMMUNICATIONS WIRELESS APPLICATIONS Family Technology Geographical Areas Channel Spacing Access Method Description 3GPP HSDPA.HSUPA.HSPA+.LTE(E-UTRA) Worldwide 5 Mhz CDMA/TDMA Family of revolutionary upgrades to earlier GSM family 3GPP2 EV-DO REV.A.EV-DO REV.B Americas, Asia, some others 1.25 Mhz CDMA Evolutionary upgrade to cdmaOne (IS-95) IEEE Mobile WiMAX (IEEE802.16 e2005). Flash OFDM.IEEE 802.20) worldwide 20 Mhz OFDMA Is a Technology for Delivering high Speed Internet MOBILE APPLICATION DEVELOPMENT WIRELESS COMMUNICATION CHIPSETS AND MOBILE DEVICES DIGITAL SIGNAL PROCESSING AND DATA ACQUISTION WIRELESS TEST AND MEASUREMENT

6. 4G (source Wikipedia) M2M COMMUNICATIONS WIRELESS APPLICATIONS Family Technology Geographical Areas Channel Spacing Access Method Description 3GPP LTE Advanced Worldwide 20 Mhz OFDMA It Provides broadband data throughputs and uses orthogonal frequency division multiplex (OFDMA) as modulation technique and orthogonal frequency division multiple access as access technology IEEE WiMAX Advanced IEEE 802.16m Worldwide 20 Mhz OFDMA Is a technology for delivering high speed internet. MOBILE APPLICATION DEVELOPMENT WIRELESS COMMUNICATION CHIPSETS AND MOBILE DEVICES DIGITAL SIGNAL PROCESSING AND DATA ACQUISTION WIRELESS TEST AND MEASUREMENT

7. Thank You M2M COMMUNICATIONS WIRELESS APPLICATIONS MOBILE APPLICATION DEVELOPMENT WIRELESS COMMUNICATION CHIPSETS AND MOBILE DEVICES DIGITAL SIGNAL PROCESSING AND DATA ACQUISTION WIRELESS TEST AND MEASUREMENT