(Ultra low power connectivity for small devices)

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(Ultra low power connectivity for small devices)
WIBREE

• By
• Parthesha K.N.
• 8th semester I T
• S I T , Tumkur

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???

• Ever dreamt of having a WRIST WATCH which James
  bond used in his movies???

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What is WIBREE?

• Wibree is a new low power, low cost ,
  interoperable radio technology for small devices.
• Wibree complements other local connectivity
  technologies, consuming only a fraction of the
  power, enabling small, inexpensive
  implementations as well as easy integration with
  Bluetooth solutions.

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• Wibree is the first open technology offering
  connectivity between mobile devices or personal
  computers, and small, button cell battery power
  devices.
• By extending the role, mobile devices can play
  in consumers' lives, this technology increases
  the growth potential in these market segments

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Wibree fullfills the need for a radio technology
that

• Allows communication between small button-cell
  battery devices and Bluetooth devices.
• Forms a minimal cost and size addition to
  Bluetooth devices such as mobile phones and PCs.
• Creates smaller and lower cost options for small
  button-cell battery devices.

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Examples

(1).Mouse communicating with computer using
Wibree
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(2).Here the keyboard is communicating with cell
phone the watch displays the heart beat and the
stress applied to the bat.
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Need for Wibree

• No standard has been optimized for low power
  consumption for low duty cycle applications
• Several years of battery lifetime on a coin cell
  battery
• 6 to 12 months battery lifetime on AA or AAA
  batteries

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Key Features

• Very low power consumption
• Forms a minimal cost and size
• Allows communication between small
  battery-powered devices
• Cost efficient implementation with the present
  Bluetooth modules

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Types of Wibree chips

• There are two types
• Stand alone mode Wibree
• Dual mode Wibree

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Stand alone mode Wibree

• Stand alone Wibree chip can communicate with
  other stand alone Wibree chips and/or dual mode
  chips.

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Example for stand alone mode

Wibree
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Dual mode Wibree

• A dual mode chip can communicate with other stand
  alone or dual mode Wibree chips in addition to
  other Bluetooth chips

Wibree
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Wibree versus Bluetooth
Bluetooth

• The device that is compatible with the bluetooth
  can communocate with the other device within
  100meters of range.
• The speed of the data transfer is upto 5Mbps.
• The power consumption is higher when compared to
  Wibree.
• It is not suitable for smaller devices.

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Wibree

• It can communicate with the other device within
  10meters of range.
• The power consumption is very low.
• The speed of data transfer is upto1mbps.
• It is suitable for smaller devices.

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PAL
Wibree technology
Wibree technology
(LL)
(Different layers of wibree bluetooth)
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Bluetooth
RF channel

• It is the primary channel of the protocol.
• 0.400-2.4835 GHz is the frequency range at which
  it operates.
• 5 Mbps is the speed.
• It can communicates with the other device upto
  100meters.

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Link controller

• It contains master .
• Master just establishes connection with the
  slaves.

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Link manage protocol

• The Link Manager Protocol (LMP) is used to
  control and negotiate all aspects of the
  operation of the Bluetooth connection between two
  devices.

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Physical Layer
Wibree

• Up to 10m range.
• 1 Mega bit/sec air data rate
• RF Antenna which will operate at the 2.4 GHz can
  work with the help of the Bluetooth antenna

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Link Layer

• Low power idle mode
• Scan service
• Connection set-up service
• Data exchange service
• Traffic scheduling services

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Wibree Profiles

• Watch profile
• Human Interface Device (HID) profile
• Sensor profile

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How power is saved in Wibree

• Wibree is aiming to produce a radio that can
  transmit a small packet of data approximately
  every second
• This low power drain is achieved by designing a
  radio and protocol that lets the radio stay
  asleep for most of its life. It can wake up
  quickly, when it will broadcast its requirement
  to transfer data on a number of advertising
  channels across the spectrum.

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• The Bluetooth Special Interest Group (SIG), the
  more than 8,000-company strong trade association
  responsible for advancing Bluetooth wireless
  technology, joined Nokia today in announcing that
  Wibree, the Nokia developed low power wireless
  technology, will be contributed to the Bluetooth
  SIG.

Thank You
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The new opportunity for network operators and
service providers

• One of the most important features about Wibree
  is that it will quickly become embedded into a
  wide range of mobile phones. That allows the
  phone to act as a gateway for information,
  transmitting it back over the network to an
  Internet based monitoring service.
• data throughputs involved will be small, so the
  transmission costs will be low and will not swamp
  the networks capacity thus opening a wide range
  of opportunities to a large number of fields.

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Conclusion

• Taking all of these factors together, Wibree has
  the potential to transform consumer devices.
• Today Wibree is a Nokia solution. However, the
  major Bluetooth chip vendors including Cambridge
  Silicon Radio and Broadcom are supporting it.
  That means it will reside within the chips in
  almost every brand of handset.
• Wibree is placed to own the wireless healthcare
  market.

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References

• www.wibree.com Official website of wibree
• www.ezurio.com Understanding of wireless range
• www.ezurio.com White paper on Wibree
• www.ieee802.org
• www.nordicsemi.no

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Thank You