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iDEN Technology
The document presents a technical overview of iDEN, a mobile telecommunication technology developed by Motorola, highlighting its history, key technologies, and operational features. iDEN utilizes TDMA, VSELP, and QAM for efficient voice and data transmission, and offers advantages such as dynamic management, high-speed data connectivity, and improved security. The paper also discusses push-to-talk services and the capabilities of next-generation devices equipped with advanced technology.
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iDEN Technology
- 1. A Technical Paperpresentation on Presented by, G.Naveenkumar
- 2. TALK-FLOW • Introduction • History •Key technologies • Operation • Push-to-talk service • Ip radio services • Advantages • Next Generation • Conclusion
- 3. Introduction • iDEN isa mobile telecommunication technology, developed by Motorola. • It places more users in given spectral space. • iDEN operates on 25KHz channels.
- 4. History • The iDENproject originally began as MIRS (Motorola Integrated Radio System)in the early 1991. • First introduced in 1994, Motorola's Integrated Digital Enhanced Network (iDEN™). • iDEN brought to the market by NEXT GENERATION WIRELESS SOLUTIONS designed for a variety of vertical market mobile business applications.
- 5. Key technologies • TDMA(Time Division Multiple Access) • VSELP (Vector Sum Excited Linear Prediction) • QAM (Quad Amplitude Modulation)
- 6. TDMA • iDEN's digitaltechnology divides a channel into different "slots". Each slot can carry one voice or data transmission. • TDMA uses the IS-54 & IS-136. • This capacity increase is accomplished using a state-of- the-art technology called TDMA.
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- 8. VSELP • It digitallycodes and significantly compresses the voice signals. • This speech decoding used in IS-54 standard. • It was used earlier in the first version of Real Audio for audio over the internet. • The IS-54 VSELP standard was published by the TELE COMMUNICATION INDUSTRY ASSOCIATION in 1989. • IS-54 is also known as ANSI/TIA/EIA-624
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- 11. OPERATION iDEN mobile operationsincludes • Control Channel Acquisition • Mobile Synchronization • Mobile Registration • International Mobile Subscriber Identity (IMSI) • International Mobile Equipment Identity (IMEI) • Mobile Assisted Handovers
- 12. PUSH-TO-TALK SERVICES • Whatis push-to-talk? • How Does iDEN Work in PTT ?
- 13. IPRS • The IPRStechnology permits users to conduct unlimited international and roaming push-to-talk sessions across any packet based network.
- 14. GPRS Gateway SupportNode (GGSN)
- 15. Serving GPRS SupportNode(SGSN)
- 16. BTS & BSC •Base Transceiver Station. Technical term for a mobile phone base station. • A BTS contains the transmit and receive technology and also the aerials to supply a radio cell. • In radio communications a Base station is a two-way radio installation in a fixed location, used to communicate with one or more mobile or portable radio transceivers.
- 17. ADVANTAGES • Dynamic management& High speed data connectivity. • A-GPS feature enabled by FCC. • Radiation less compared to other. • Superior voice technology. • Improved security and privacy.
- 18. NEXT GENERATION • Thenewest phones-like the i570 BOCA CHICA-feature innovative J2ME™ technology enabling Reversed polarized external display equipped with PTT,A-GPS, Browser v4.x as well as a new design language.