cellular phones as embedded systems by niam amarnani
TRANSCRIPT
Cellular Phones as Embedded Systems
by Niam Amarnani
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Introduction
•Cellular phones are largely being used today.The cellular phones consists of a transmitter and receiver.it consist of microprocessor,Rom,Ram,.
•The LCD display and keyboard is also available
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OutlineOutline
• IntroductionIntroduction• Today’s Cellular PhoneToday’s Cellular Phone• Architecture for Wireless AccessArchitecture for Wireless Access• Memory, OS, and Power ChallengesMemory, OS, and Power Challenges• ConclusionsConclusions
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• Convergence enables people to create, share and consume digital content
• Cellular phones evolve from traditional cost-optimized handhelds to multifunctional terminals
• Cellular phones: key platform for mobile convergence applications (web browsing, video streaming, etc.)
Digital ConvergenceDigital Convergence
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• Extremely complex embedded system
• Functional blocks are custom-made for mobility
• Chips are either proprietary designs or based on available chips.
• sophisticated and better functionality
Today’s Cellular PhoneToday’s Cellular Phone
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Example: Blackberry BoldExample: Blackberry Bold
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Example: Blackberry BoldExample: Blackberry Bold
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• Cellular phones have come a long way from analog communication devices to digital mobile computers.
• Today, a cellular phone is a paradigm of an embedded system having highly optimized cost, size, efficiency and performance.
• Challenges in RF circuits, implementation architecture, memory, and power consumption are still affecting the development and growth of mobile devices.
• New technologies such as decentralized architectures, reconfigurable circuits, advanced memories, and low power designs will help overcome challenges.
ConclusionsConclusions
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Why is it called Cellular?
•An antenna tower handles calls from a short distance from it (Base Station)
•More antenna towers means more users can talk on cell phones▫Lower power the cell phone emits▫Repeat the frequencies used
•The antennas form small cells of coverage around the city
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Cell Phone Identity Systems•Every cell phone has 2 unique
identifications•MIN – Mobile Identification Number
▫A 10 digit telephone number▫309-555-1212
•ESN – Electronic Serial Number▫32 bit binary number▫Built into the cell phone