Dr. Tal Lavian

http://cs.berkeley.edu/~tlaviantlavian@cs.berkeley.edu

UC Berkeley Engineering, CET

Wireless Mobile Devices Patents

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What is a patent? Invention that is new and useful

What is an wireless mobile device? Any device that transmits wirelessly for communication

purposes

Patents for Wireless Mobile Devices

What does a Patent do?3

Patents protects intellectual capital for any technological innovation.

Businesses use patents as a business tool not only for maintaining technology leadership but also for nurturing economic growth.

In a rapidly growing industries, intellectual property (IP) can make the difference between survival and failure.

What does a Patent do? (Cont.)4

Inventors and entrepreneurs need patents (and patent laws) for:

protecting their inventions in the very early stages of product development

determining the patentability of their invention avoiding infringement of a competitor’s patent and leveraging their patent as a business asset

Recognizing Intellectual Property5

When viewing things within an IP framework, you…

Recognize inventions Detect and avoid infringementDistinguish confidential information from general

knowledgePreserve confidentiality

Recognizing Intellectual Property

Trademarks Logos & symbols

Copyrights Right to reproduce an

idea or information Includes software

Patents Invention that is new and useful

Trade Secrets Non-disclosed information that is valuable

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Wireless Mobile Device Patent Areas7

Software

Electronics, display (touch screen), Qwerty keyboard

Java

Transmission over wireless channels

Data and speech coding

Infrastructure: 2G, 3G and Wi-Fi technology

Obviously, the above list is not exhaustive

Wireless Mobile Devices 20138

Market directions9

What is Wireless Communication?10

Any form of communication that does not require the transmitter and receiver to be in physical contact

Electromagnetic wave propagated through free-space Radar, RF, Microwave, IR, Optical

Characteristics of Wireless Mobile Devices

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Wireless Limited bandwidth, high latency Variable link quality (noise, disconnections, other

users) Heterogeneous air interfaces

Mobility: User and terminal location dynamically changes Speed of terminal mobility impacts wireless bandwidth

Portability Limited battery capacity, computing and storage Small dimensions

More Signal Processing

More Protocol Processing

Higher Energy Efficiency

Electromagnetic Spectrum12

From: imagine.gsfc.nasa.gov.docs

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1012

103.414

x105.7

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x

1017

1019

Evolution of Cellular System13

First generation: Analog – Voice Analog modulation, cellular

phone (AMPS) with manual roaming

Second Generation: Digital Voice & Data Digital modulation Cellular and

PCS phones with seamless roaming, integrated paging

Third Generation (3G): Digital Multimedia Unified digital access, voice,

data, video music, gaming, m-commerce, sensor etc.

Wireless Network Technology14

Bluetooth -

PAN

WLAN

WWAN

802.11b -

Cellular - range in kms

1 to 3 m

100 to 400 m

Technology

Geography

Off-campusopen areas

On-campus

office, home, school

Personal space

office, briefcase, person

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Basics of Cellular Systems

BSC

BSC

MSC

MSC

VLR

HLR

PSTN

OMC

AuC

EIR

Basics of Cellular Systems

Towers can transmit within a certain range:

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Strong signalWeak signal

Basics of Cellular Systems

A hexagon (a roundish, tessellating shape) is used to represent adjacent tower-ranges:

How can a phone tell which tower it is receiving from?

How can a tower tell which phone it is receiving from?

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Basics of Cellular Systems18

http://nutritekgroup.com/images/GSM6.png

Basics of Cellular Systems

Frequency reuse

Hand over

Packet switched vs circuit switched

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The OSI Model

Application layer

Presentation layerSession layer

Transport layer

Network layer

Data Link layer

Physical layer

Application layer

Presentation layerSession layer

Transport layer

Network layer

Data Link layer

Physical layer

Transmitted data

Received data

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Summary

A wireless mobile device depends on information delivered by electromagnetic waves over various distances

The efficiency and capacity of wireless information delivery has increased as a result of hundreds of extremely valuable patents

A patent is legal protection of a new and useful invention; beyond protecting new ideas, it can be leveraged for profit

The size, functionality, and attractiveness of mobile devices have also improved due to valuable patents

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Next Week: Smartphone Patent War

We will take an in-depth look at the many different battles comprising the patent war, including Who’s suing who Over what technology And for what possible reasons

We will also discuss alternatives to litigation, such as licensing IP

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