zigbee rf4ce - abm-website-assets.s3. · pdf file–remotes are key in zigbee...

©2011 ZigBee Alliance. All rights reserved.

ZigBee RF4CE

“A quiet Revolution going on”

Cees Links – Marketing Chair ZigBee RF4CE

[email protected]

May 2011 – v 26

mailto:[email protected]


ZigBee RF4CE

Entertainment Control

Rev. 1.8

Mar-2011

2


ZigBee

– Connects the widest range of devices to work

together intelligently and help you control your

world

ZigBee RF4CE

– Offers multi-vendor interoperable consumer

electronics and home entertainment control

standards

• Features simple, robust, low-cost wireless

communication networking for two-way connectivity

ZigBee RF4CE

3


The ZigBee RF4CE specification

– Addresses connectivity of consumer electronic devices

• Remote Controls

• Keyboards, mice, pointing devices, etc.

• 3D glasses

– Enables multi-vendor interoperability between end-devices

and host-devices (targets)

• HDTV, DVR, Set-top box, Blu-ray player

• Computers

– Designed for ease of use

• Easy pairing/commissioning

• Robust against interference

ZigBee RF4CE

4


ZigBee RF4CE ZigBee PRO ZIP

Profile ZRC ZID Z3S ZSE

1.x ZHA ZBA ZTS ZRS ZHC ZSE 2.0

Network RF4CE ZigBee PRO ZIP

MAC IEEE 802.15.4 – MAC IEEE802.15.4 -

MAC or other

PHY Sub-GHz

(specified per region)

IEEE 802.15.4 – 2.4 GHz

(worldwide)

IEEE 802.15.4 -

2.4GHz or other

ZigBee Standard Overview

Legend

ZRC ZID Z3S ZIP MAC PHY

ZigBee Remote Control ZigBee Input Devices ZigBee 3D Synch ZigBee Internet Protocol Media Access Control Physical Layer

ZSE ZHA ZBA ZTS ZRS ZHC

ZigBee Smart Energy ZigBee Home Automation ZigBee Building Automation ZigBee Telecom Services ZigBee Retail Services ZigBee Health Care

5


ZigBee RF4CE

Steering Committee

6

http://www.ti.com/lprf

http://www.sem.samsung.com/

http://www.freescale.com/zigbee


Standards (Public Application Profiles) deliver smart functionality by

maximizing the ZigBee RF4CE network layer

– Define discovery and pairing procedures

– Standardize commands

– Ensure interoperability between devices from different vendors

Three application profiles defined

– ZigBee Remote Control – advanced remote controls (completed)

• Standard and test specifications completed

• Test houses (TRAC, NTS) open for certification

– ZigBee Input devices – human input devices (completed)

• Standard internally released, test specification under development

• Certification program expected in Q2 2011

– ZigBee3D Synch – 3D glasses (in progress)

• Standard development underway

ZigBee RF4CE Standards

7

http://www.zigbee.org/Standards/ZigBeeRemoteControl/Overview.aspx

http://www.zigbee.org/Standards/ZigBeeInputDevice/Overview.aspx

http://www.zigbee.org/Standards/ZigBee3DSync/Overview.aspx


The New, Advanced Remote Control Experience

– Covers larger areas

– Goes through walls and into cupboards/furniture

• STB can be placed in furniture or another room

• Multiple room support

– Does not require line-of-sight

• Not bothered by someone/something “in the way”

• No pointing at devices

– Is not sensitive for background light interference

• Sunlight, LED, fluorescent lights

– Is standardized and selective

• Supports multiple devices without complex programming

• Does not unintentionally control unpaired boxes

– Allows for an improved keyboard experience

• Tactile feedback/Triple tap entry/Discrete commands

– Supports (infinitely) longer battery life

ZigBee RF4CE Use Cases (1/3)

8


New, Advanced Remote Control Capabilities

– Receive and display messages on remotes

• Program information

• News highlights

• Sport results

• Stock info

– Unique Lost Remote feature

• Ping a lost remote control with a button on the TV or STB

– Follow me convenience

• Continue watching movie when going to another room

– Supports new applications

• Casual gaming (multi-user)

• Arm-chair payments

• Ambience control (lighting, heating/air-conditioning,

curtains, etc.)


9


Control More Devices for Entertainment

– Control Internet television with different devices

• Keyboard

• Touchpad

• Pointing devices

• Mouse (air mouse)

• Wand

– Watch 3D television with own glasses – independent

TV-brand

• 3D glasses


10


In total 12 ZigBee RF4CE certified platforms (Jan-2011)

– Include both hardware and software stacks

Broad Industry Adoption

11


ZigBee RF4CE

Technical Overview

12


Based on 2.4 GHz MAC/PHY

IEEE 802.15.4 standard

Thin, flexible and future-proof

networking layer

Co-exists with other 2.4 GHz

technologies

Interoperability

Secure communications

Power saving mechanisms in

network layer

Simple and intuitive pairing

Allow for inclusion of vendor

specific applications

Support for multiple

applications

PHY LAYER

MAC LAYER

APPLICATION FRAMEWORK

APPLICATION

IEEE

802.15.4

ZigBee

RF4CE

Network

&

Profiles

OEM

POWER SAVE

TOPOLOGY

NETWORKING LAYER

SECURITY

CHANNEL AGILITY

MANAGEMENT

PAIRING

PROFILES

ZigBee RF4CE Overview

13


Two Nodes Types

– Target Node

• Network Startup

• Full PAN Capability

• Accepts or declines a pairing request

• Makes decision on operating channel (frequency agility)

– Controller Node

• Initiates pairing and discovery process to Target Nodes

• Implements frequency agility

• On-demand communication

ZigBee RF4CE Network Supports

– Full LAN capability through combination of multiple PAN’s

– Participation in multiple networks

– Low power use and Power Save mechanism built into network stack

– Supports multiple transmission options

– Support for multiple standards (public application profiles)

ZigBee RF4CE Node Types

14


ZigBee RF4CE Network Topology

15

Target

node

Controller

node

TV RC

CD RC

DVD RC

PAN 1

PAN 2

PAN 3

Multi-function

RC

CD

TV

DVD


ZigBee RF4CE Frequency Agility

2.400

GHz

2.485

GHz

802.11b/g Channel (North America)

802.11b/g Spectrum Occupancy (Typical)

802.15.4 Channel

802.11b/g

Channel 6

802.11b/g

Channel 1

802.11b/g

Channel 11

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Channel Agility

ZigBee RF4CE Channel

16


Security is established during pairing process

Utilizes AES-128

– Security mode: ENC-MIC-32

• Data confidentiality (via payload encryption)

• Data authentication (via Message Integrity Code)

• Replay protection (via frame counter)

Nodes use 128-bit link keys

– Keys are generated automatically, if security is supported

– Keys are stored in the pairing table

ZigBee RF4CE Security

17


Two states for Power Save: Active & Standby

Defined in network stack

Controllers simply turn off when no buttons are being pressed

Targets must also use power save when in standby

– But must ensure a (human) reasonable reaction time

Power saving utilizes

– Active period during which the device wakes

– Duty cycle at which device repeats active period

Power saving mechanism is aligned with frequency agility

ZigBee RF4CE Power

Management

nwkDutyCycle (no more than 1 sec)

nwkActivePeriod (min. of 16.8 msec)

Rx on

Rx off

18


ZigBee Remote Control (ZRC)

– Defines push button pairing process between

controller and target

• The mechanism works in conjunction with the existing ZigBee RF4CE

discovery and pairing mechanisms

• Discovery, pairing and security (as necessary) all take place via a

single button push

– Defines commands for basic CE device control

• User control pressed

• User control repeated

• User control released

– User control pressed command carries HDMI CEC commands

– Support for manufacturer specific commands

– Command discovery, remote to HDTV and HDTV to remote

ZigBee Remote Control

19


ZigBee Input Device (ZID)

– Support for mice, touchpads, keyboards, wands,

remote control pointers

– Identical pairing process as ZRC gives customers a uniform

ZigBee RF4CE pairing experience

– Native support for popular multi-touch and gesture commands,

including pinch or rotation for touch pad devices

– Ability to define special functions and enhanced performance

beyond the standard behavior of a mouse, keyboard or similar

input device, using HID descriptors, including manufacturer

specific commands

– Support for operation with existing ZigBee Remote Control

equipped HDTVs, set-top boxes and other devices as well as with

existing computers

ZigBee Input Device

20


ZigBee 3D Sync (Z3S)

– Flexible/efficient connections between 3D HDTVs

and glasses

– Enables multi-vendor 3D glasses interoperability

– Identical pairing process as ZRC and ZID gives customers a

uniform ZigBee RF4CE pairing experience

– Fully programmable display frame rates/shutter open/close times

– Unlimited number of glasses per screen

– Multiple user experience modes, for seamless switching between

3D and 2D

– Multi-player (full screen) 2D or 3D gaming, where each player

receives a separate 2D or 3D image

– Support for manufacturer specific commands

ZigBee 3D Synch

21


ZigBee RF4CE

Future Direction

22


ZigBee RF4CE is the ZigBee Alliance connection

into Consumer Electronics

– Remotes are key in ZigBee standardization of home

automation sense and control networks

ZigBee is a member driven organization

– New proposals for additional uses are continuously raised

by its members, evaluated and with sufficient market

interest put on the roadmap

Future work is directed at

– Further integration (e.g. through gateways) with large

number of ZigBee PRO based standards

Future Direction

23


Back-up Slides

25


IR (30 year old technology) RF

Limited Line of Sight Transmission – Short transmission distance

– Consumers unable to hide CE devices

Field of Vision Limitations – Remote needs to be pointed at IR receiver

– Objects in the way obstruct connectivity

Larger Range and Multi-room Support – Control components in furniture

– Control components from other rooms

–Control over extended ranges

Unidirectional Unacknowledged Transfers – Unreliable communication

– Cannot send information to remote control or between components (DTV, set top box, etc.)

Bi-directional Capability – Reliable communications

– Send program guides, playlists, stock quotes, etc. to remote

– Allows for communications between devices

– Over-the-air firmware updates possible

– Lost remote locator

Technology Challenge – Plasma HDTV contains high frequency inverter that obstructs IR signals

– LCD back lighting saturates HDTV IR receiver

Faster and Reliable Communications – Transmit commands until received

– Many times faster response than IR

– Enables enhanced user interfaces

– Touchpad or pointing capability

– As low as 25% or less of the power used by IR solutions

High Power Consumption – More dead batteries, customer support calls

– Multiple redundant transmissions for each command

– Higher TX power required to avoid interference created by plasma/LCD screens

Low Power Consumption – Uses 25% or less of the power used by IR solutions

– Fewer battery replacements

– Reduce customer support calls

Requires Manufacturer-Specific IR Databases – Each product has its own commands

– Requires larger memory for storing lookup tables

True Multi-Manufacturer Interoperability – No more IR (product specific) databases required anymore

IR/RF Remotes Compared

26

zigbee rf4ce - abm-website-assets.s3. · pdf file–remotes are key in zigbee...

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