HomeRF: Bringing Wireless Connectivity Home

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1 HomeRF: Bringing Wireess Connectivity Home Jim Lansford Wireess Systems Architect Inte Corporation Technica Committee Chair Home RF Working Group March 9, Inte s

2 Where does wireess fit? Part of the home intranet mix :K\ZLUHOHVV"3RUWDELOLW\DQG 1RQHZZLUHVµ Core home networking capabiities, incuding internet, anywhere in and around the home Share wireess voice and data Review incoming messages Activate other home eectronic systems by voice Needed in countries where phone ines cannot be used 2 Inte s

3 Home Networking Soutions Designed for the Home User No new wires Simpe to Insta Easy to Use Low Cost: ~$200 for 2 PCs Bandwidth To Support Common Home Appications Industry Standards 3 Inte s

4 Home Networking Needs 1 Mbps 100,000 (100 Mbps) 10,000 (10 Mbps) 1,000 (1 Mbps) Inte s Printing Internet Drives Gaming Voice Rea Audio G2 MP3 Audio MPEG Video HDTV Bandwidth (Kbps) First Home NW Appications

5 HomeRF Working Group Mission Statement To enabe the existence of a broad range of interoperabe consumer devices, by estabishing an open industry specification for unicensed RF digita communications for PCs and consumer devices anywhere, in and around the home. 5 Inte s

6 Estabishing SWAP-CA Shared Wireess Access Protoco - Cordess Access Standards body e.g., ITU, IEEE, ANSI Industry eadership and dedicated forum e.g., IrDA, TAPI, USB SWAP-CA It happened one day e.g. ISA, Soundbaster 6 Inte s

7 70+ Member Companies Broad, cross industry support Communications Consumer Eectronics Home Contro/Home Automation Networking Peripheras Persona Computer Semiconductors/Components Software 7 Inte s

8 Partia Membership Roster (70+ companies are now Participants) 3COM Aps Advanced Micro Devices Aironet Appe Broadcom Corporation Butterfy Communications Casio Cirrus Logic Cisco Systems Compaq Ericsson Enterprise Networks Fujitsu Harris Semiconductor Hewett-Packard Hosiden IBM Inte Inteon Interva Research Industria Tech. Research iready Systems Kansai Denki LG Eectronics Matsushita Eectronics Matsushita Works Microsoft Mitsubishi Motoroa Nationa Semiconductor NEC Corporation Norte Oki Ositis Software Primax Phiips Consumer Communications (PCC) Proxim Raytheon Wireess Soutions RF Monoithics RF Micro Devices Rockwe Semiconductor Systems Samsung Eectronics Sharp ShareWave Siemens Siemens Microeectronics Siicon Wave Symbionics Symbo Texas Instruments WebGear 8 Inte s

9 SWAP Product Deveopment The foowing member companies are deveoping SWAP products: Butterfy Communications Compaq Hewett-Packard IBM Inte iready Microsoft Motoroa Proxim OTC Teecom RF Monoithics Samsung Symbionics 9 Inte s

10 Enabing the Vision HomeRF SWAP Grandma s Brownies 3 cups four 1 cup grated chocoate 1 cup sugar 1 stick butter Contro Point 1394 USB Camera Game Pad Printer Phone Cabe Stereo Camcorder VCR TV Mutimedia (e.g. 1394) HomePNA 10 Inte s

11 The SWAP Network?? P P TCP/IP Based Network of Asynchronous Peer-Peer Devices Internet HomeRF Contro Point USB PSTN Main Home PC Grandma s Brownies 3 cups four 1 cup grated chocoate 1 cup sugar 1 stick butter Isochronous Cients 11 Other Home Networks (HPNA,phone,AC) Inte s

12 HomeRF Origins Uses CSMA/CA Good for Data DECT Uses TDMA Good for Voice SWAP TDMA + CSMA/CA Good for Voice & Data Optimized for sma networks (in home) Simpified radio & protoco to reduce cost B oth voice and data are important for home R F 12 Inte s

13 Why a new protoco? It handes voice ike DECT or PHS, but... ufrequency hopping u20 ms frames (better for data) uintereaved up and down inks uretransmission (singe) It handes data ike , but... ureaxed PHY ayer specs to reduce cost ubeacons to manage isochronous traffic usimpified protoco (no PCF) IP data at up to 2Mb/s and supports cordess teephony 13 Inte s

14 SWAP Features Range: >50 meters indoors Speed: dua speed - supports TCP/IP traffic at over 1Mb/s Voice: High quaity voice channes with retransmission uhigh quaity cordess teephones uvoice recognition 14 Inte s

15 Device Types Grandma s 3 cups four 1 cup grated chocoate 1 cup sugar 1 stick butter 1/2 cup chopped wanuts minutes. HOME INDEX Fridge pad Isochronous (I node) > minimum atency - teephones, etc. Asynchronous (A node) > TCP/IP traffic Cordess Teephone CP PSTN CP - Connection point can manage a network or act as an A node Can be USB, PCI, PC-Card, Device Bay, etc. CP can pace cas even when PC is down 15 Inte s

16 Topoogy CP CSMA A Node HOME INDEX CSMA & TDMA A/I Node Grandma s 3 cups four 1 cup grated chocoate 1 cup sugar 1 stick butter 1/2 cup chopped wanuts minutes. HOME INDEX Fridge pad CSMA A Node TDMA I Node CP PSTN Connection Point* SWAP Frame It s a circuit switched, isochronous network It s a packet switched, asynchronous network It s both - I nodes get priority on bandwidth 16 TDMA I Node CP CSMA A Node TDMA I Node Inte s CSMA A Node

17 PHY Features Nomina 100 mw transmit power Minimum receiver sensitivity of -76 dbm (2FSK) u range >50 m in typica homes/yards u -85 dbm sensitivity typica Cost effective fiter requirements uuse MAC to reduce PHY cost umakes singe-chip integration simper 17 Inte s

18 MAC Features MAC provides good support for voice and data Leverages existing DECT technoogy for voice Exceent integration with TCP/IP networking protocos u easy integration with Ethernet u Supports broadcast, muticast and fragmenting Data security - Basic/Enhanced eves of encryption u Basic: 24-bit Network ID and Frequency Hopping u Enhanced: Basic + LFSR agorithm Extensive power management for utra-portabe devices Optimizes existing technoogy for home use 18 Inte s

19 The PC interface SWAP s PC connection is designed for use under Windows 98 *, Windows2000 *, and beyond u Wake on ring u Connection Oriented NDIS (NDIS 5 for Windows2000 * ) u A nodes appear as Ethernet devices u I nodes become Connection Oriented cients * Third party brands and marks are property of their respective owners. 19 Inte s

20 P C S oftware Architecture Diagram TAPI 3.0 connectionoriented cient Windows2000 * DirectShow * connectioness cient Windows2000 * NDIS TAPI proxy Windows2000 * RCA fiter connection-oriented I/F connectioness I/F * Third party brands and marks are property of their respective owners. Ethernet MP/CM 20 Inte s

21 Voice: Robust carity Downink Sots Contro Point Beacon Service Sot Service Sot used by nodes to Page Contro Point D3 U3 D2 U2 D1 U1 Hop B D3 U3 D4 U4 Contention period CSMA/CA access mechanism D4 U4 D3 U3 D2 U2 D1 U1 Hop Upink Sots CFP #1 Superframe - 20ms Contention free periods CFP #2 Superframe structure controed by Beacon TDMA sot pairs aocated by the Contro Point Voice data transmitted in the sots in CFP #2 Any voice data to be retransmitted is sent: In CFP1, after a hop frequency/time diversity & ow atency 21 Inte s

22 Data transmission Service Sot D3 U3 D2 U2 D1 U1 Hop B D3 U3 D4 U4 Contention period CSMA/CA access mechanism D4 U4 D3 U3 D2 U2 D1 U1 Hop CFP #1 Superframe - 20ms Contention free periods CFP #2 CSMA/CA during the contention period Efficient for sma networks Toerant of interference Data for entire frame if no voice 22 Inte s

23 Encryption Agorithm Open, royaty free - pubished in open iterature over 30 years ago Low gate count Fast warm up Required for CP in the US market, optiona for other devices and geographies Robust Simiar concept to GSM A5 agorithm, but stronger 23 Inte s

24 Usage - Voice Contro TDMA I Node CP IWU CP Appication Co-NDIS PC Handset initiates voice transfer to PC Appication accepts streaming audio from CP Appication performs speech recognition and sends commands back down stack Fridge pad Grandma s 3 cups four 1 cup grated chocoate 1 cup sugar 1 stick butter 1/2 cup chopped wanuts minutes. HOME INDEX CSMA A Node Data traffic can aso be active PSTN 24 For automatic ca pacement, CP dias number and connects handset Handset - PSTN connection remains unti ca teardown Inte s

25 Usage - ISP Sharing Voice traffic can aso be active TDMA I Node PC initiates ISP connection (modem, ISDN, UDSL, Cabe, etc.) CSMA A Node CP IWU CP USB Appication Co-NDIS PC Appications on host PC can access ISP immediatey Remote A nodes access ISP through NAT and TCP/IP Fridge pad Grandma s 3 cups four 1 cup grated chocoate 1 cup sugar 1 stick butter 1/2 cup chopped wanuts minutes. HOME INDEX CSMA A Node PSTN 25 Remote A nodes can aso share fies and printers Ad hoc peer-peer transfers between nodes do not require resources of server PC Inte s

26 Timeine 98 Q1 98 Q2 98 Q3 98 Q4 99 Q1 99 Q2 99 Q3 99 2H 26 Inte s First Products Reached 50 members Pubished R0.5 (Functionay compete) Home RF Working Group Announced SWAP 1.1 Specification Sampe Physica Layer radios Define Logo Usage Requirements SWAP 1.0 Provisiona Specification

27 HomeRF Summary Home RF Working group deveoping open, royaty free spec Over 80 member companies NOW is the time to begin impementation pans More info (incuding membership) at $4,800 membership fee 27 Inte s

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