1. © Airspan Networks Inc. WipLL Presentation

2. © Airspan Networks Inc. Contents WipLL- what is it? WipLL physical layer WipLL MAC protocol WipLL Applications WipLL Roadmap WipLL Vs other WLL products WipLL Vs xDSL WipLL Case Study

3. © Airspan Networks Inc. WipLL – what is it? WipLL = Wireless IP Local Loop WipLL = IP based Broadband Fixed Wireless Access System

4. © Airspan Networks Inc. WipLL: Main Features(1) Designed explicitly for Broadband Fixed Wireless Access applications High capacity Point to Multi-Point system Integrated services on a single platform using a single protocol: Data Voice Modular structure High effective throughput of up to 80% Network Management (SNMP), remote configuration and S/W down load

5. © Airspan Networks Inc. Air link based on Frequency Hopping CDMA (FH-CDMA) scheme Operates in: –2.4 GHz ISM band –3.5 GHz –Other bands: ready for trials Operating range exceeds 10 km (LOS) Bandwidth Management: MIR, CIR, Fairness WipLL: Main Features(2)

6. © Airspan Networks Inc. Rich networking package: –IP routing –PPPoE bridging –IP filters: security based on: IP addresses Protocols: ICMP, UDP, TCP Applications or TCP/UDP port numbers: WEB, E-mail, FTP, etc –QoS based on: IP addresses Protocols: PPPoE, IP, ICMP, UDP, TCP Applications or TCP/UDP port numbers: WEB, E-mail, FTP, etc –802.1Q/p for: Traffic engineering VPNs End-to-end QoS –DiffServ/TOS for end-to-end QoS WipLL: Main Features(3)

7. © Airspan Networks Inc. WipLL – Physical Layer Frequency Bands Frequency Hopping Spread Spectrum Standards Compliance Modulation System Parameters Antennas Link Budget Frequency Reuse

8. © Airspan Networks Inc. Frequency Bands Support of various sub 11GHz bands including:Support of various sub 11GHz bands including: –2.4GHz (Licensed Exempt ISM) TDD –3.5GHz FDD –Variety of versions available for trials, such as: 3.4-3.8 TDD/FDD3.4-3.8 TDD/FDD 2.5GHz (MMDS)2.5GHz (MMDS)

9. © Airspan Networks Inc. Frequency Hopping Spread Spectrum (FHSS) What is Frequency Hopping Spread Spectrum?What is Frequency Hopping Spread Spectrum? –Spread Spectrum Encoding method that uses a process other than the information signal to expand, or spread, the bandwidth of the signal. Encoding method that uses a process other than the information signal to expand, or spread, the bandwidth of the signal. –Frequency Hopping Spread Spectrum (FHSS) The carrier frequency at which the information signal is transmitted is rapidly changed according to a predefined spreading code. This type of spreading is implemented in WipLLThe carrier frequency at which the information signal is transmitted is rapidly changed according to a predefined spreading code. This type of spreading is implemented in WipLL

10. © Airspan Networks Inc. FHSS Advantages Interference rejectionInterference rejection Spectrum flexibility - no need for contiguous frequenciesSpectrum flexibility - no need for contiguous frequencies Coexistence with other systems – Bluetooth and suchCoexistence with other systems – Bluetooth and such Low Probability of Interception (LPI) – eavesdropping protectedLow Probability of Interception (LPI) – eavesdropping protected

11. © Airspan Networks Inc. Frequency Hopping Channel Arrangement Operator’s RF Channel - divided into multiple sub channelsOperator’s RF Channel - divided into multiple sub channels 1MHz sub channel spacing1MHz sub channel spacing Sub channels are arranged in a hopping sequenceSub channels are arranged in a hopping sequence

12. © Airspan Networks Inc. Frequency Hopping Channel Arrangement (Cont’d) WipLL Spectrum mask complies with ETSI standard EN 301 021WipLL Spectrum mask complies with ETSI standard EN 301 021 20dB point channel bandwidth is 1MHz or 1.33MHz depending on system mode20dB point channel bandwidth is 1MHz or 1.33MHz depending on system mode

13. © Airspan Networks Inc. Standards Compliance 3.5 GHz3.5 GHz –ETSI EN 301 253 (FH-CDMA) –ETSI EN 301 021 2.4 GHz2.4 GHz –ETSI ETS 300 328 –FCC part 15 –Telec

14. © Airspan Networks Inc. Modulation Multi level (8) Frequency Shift Keying (FSK)Multi level (8) Frequency Shift Keying (FSK) Adaptive modulation based on RSS and BERAdaptive modulation based on RSS and BER Two modes of operation in terms of symbols per second:Two modes of operation in terms of symbols per second: 4Mbps / 1.33 Mbps4Mbps / 1.33 Mbps 3Mbps / 2Mbps / 1Mbps3Mbps / 2Mbps / 1Mbps The modes are software selectable by the operatorThe modes are software selectable by the operator

15. © Airspan Networks Inc. Modulation – Raw Data Rates ModulationBits/symbolMode (Msps)Rate (Mbps) 2-FSK111 1.33 4-FSK212 8-FSK313 1.334

16. © Airspan Networks Inc. System Parameters Frequency Bands:2.4GHz (ISM), 3.4 – 3.8GHz, 2.500-2.686GHz (MMDS)Frequency Bands:2.4GHz (ISM), 3.4 – 3.8GHz, 2.500-2.686GHz (MMDS) Radio Technology:FHSSRadio Technology:FHSS Duplex mode:TDD/FDD (50 or 100 MHz duplex spacing)Duplex mode:TDD/FDD (50 or 100 MHz duplex spacing) Multiple Access Method:Adaptive TDMA using WipLL proprietary PPMA protocolMultiple Access Method:Adaptive TDMA using WipLL proprietary PPMA protocol Channel Bandwidth:1MHz/1.33MHzChannel Bandwidth:1MHz/1.33MHz (as measured at 20dB points) Sub – Channel Spacing:1MHzSub – Channel Spacing:1MHz Output power:28±2 dBmOutput power:28±2 dBm Power control:Remote and Auto Power Control (RTPC, ATPC)Power control:Remote and Auto Power Control (RTPC, ATPC) Receiver Sensitivity:-90/ -83/ -75 dBmReceiver Sensitivity:-90/ -83/ -75 dBm (BER 10 -5, @ 2FSK/4FSK/8FSK) Carrier to Interference:12/ 22/ 28 dBCarrier to Interference:12/ 22/ 28 dB (BER 10 -5, @ 2FSK/4FSK/8FSK) Data Rate:4Mbps max.Data Rate:4Mbps max. Modulation:Multi level FSKModulation:Multi level FSK Spectral Efficiency:3 bit/sec/HzSpectral Efficiency:3 bit/sec/Hz

17. © Airspan Networks Inc. WipLL Antenna System BSR and SPR/IDR – Integrated solution:BSR and SPR/IDR – Integrated solution: Integral flat printed antennaIntegral flat printed antenna No RF Cable involvedNo RF Cable involved BSR and SPR: ODU / IDU interface: standard CAT5BSR and SPR: ODU / IDU interface: standard CAT5 IDR: Fully IndoorIDR: Fully Indoor Polarization:Polarization: VerticalVertical Horizontal – release 4.0Horizontal – release 4.0 Receive diversity at BSR - dual integral antennasReceive diversity at BSR - dual integral antennas External antenna optionExternal antenna option N type connector for both BSR and SPRN type connector for both BSR and SPR TNC connector for IDRTNC connector for IDR

18. © Airspan Networks Inc. External Antennas Reasons for external antenna: Reducing BS costReducing BS cost –Minimum BS: SDA, BSR and Omni antenna Supporting different Sectorization Scheme (4*90º, 3*120º)Supporting different Sectorization Scheme (4*90º, 3*120º) Improving link budget (higher gain)Improving link budget (higher gain) Various polarizationsVarious polarizations

19. © Airspan Networks Inc. BSR Antenna Pattern Envelope European Standard EN 302 085 CS1 Gain 12dBiGain 12dBi HPBW: 60ºx20ºHPBW: 60ºx20º AzimuthElevation * Each ring corresponds to 5dB attenuation

20. © Airspan Networks Inc. SPR Antenna Pattern Envelope European Standard EN 302 085 TS1 Gain 15dBi/ 18dBi (18dBi option is available for 2.4GHz band only)Gain 15dBi/ 18dBi (18dBi option is available for 2.4GHz band only) HPBW: 20ºx30ºHPBW: 20ºx30º AzimuthElevation * Each ring corresponds to 5dB attenuation

21. © Airspan Networks Inc. Link Budget Example (3.5GHz) TransmitterTransmitter Tx Power28dBm Internal losses-2dB Tx Antenna Gain12dBi Tx EiRP38dBm ReceiverReceiver Required SNR (2FSK)14dB Rx Antenna Gain15dBi Internal losses-2dB NoiseNoise NF10dB Bandwidth (1Msps)1MHz Noise Level-104dBm Fade Margin (99.99% availability)16dBFade Margin (99.99% availability)16dB Required RSS level-87dBmRequired RSS level-87dBm Allowable path loss125dBAllowable path loss125dB System Range (Free Space Propagation)12KmSystem Range (Free Space Propagation)12Km

22. © Airspan Networks Inc. Frequency Reuse Frequency reuse of FWA system depends on various parameters such as:Frequency reuse of FWA system depends on various parameters such as: –C/I –Sectorization scheme and antenna pattern –Propagation model considered –Performance goals (coverage, availability) Reuse N=3 assuming:Reuse N=3 assuming: – typical propagation model (Erceg) –90% coverage @ 8-FSK modulation

23. © Airspan Networks Inc. Radio Planning Based on off the shelf software (Hexagon)Based on off the shelf software (Hexagon) –MapInfo as a GIS platform –Variety of digital map formats supported –Coverage and Interference Analysis –Capacity Module –Automatic Frequency Allocation Algorithm

24. © Airspan Networks Inc. WipLL air MAC Protocol

25. © Airspan Networks Inc. PPMA (Preemptive Polling Multiple Access Protocol ) : –Adaptive TDMA –Centrally coordinated –Knowledge of available and required resources –Intelligent polling of users –Optimized for time bounded applications –Supports 126 users (CPEs) per each Base Station Radio (BSR) WipLL Air Protocol

26. © Airspan Networks Inc. Quality of Service – built in PPMA The ability to recognize the type of the transmission and assign bandwidth and other resources accordingly Used by BSR when allowing access to different SPRs WEB Browsing E-mail File Transfer Voice over IP FTP

27. © Airspan Networks Inc. Efficient Packet transmission within PPMA Data packets are cut into fragments The length of the fragments is dynamic according to BER CRC is calculated for every fragment Re-transmissions are done on fragments only !

28. © Airspan Networks Inc. WipLL Target Market Sectors Residential SOHO SME

29. © Airspan Networks Inc. Who buys WipLL? Customers: Operators ISPs Utility companies Opportunities: Rural, sub urban and urban areas Developed and developing countries Complementary solution for ADSL or CATV

30. © Airspan Networks Inc. WipLL Components Subscribers

31. © Airspan Networks Inc. BSR SDA CAT5 OMNI Directional Antenna 10BT Base Station Site - Minimum Configuration WipLL Components

32. © Airspan Networks Inc. Interface unit (e.g. Router, Switch) WipLL Components Base Station Site - Basic Configuration IP ATM Other BSR BSDU -48Vdc 100baseT BSPS BSR GPS

33. © Airspan Networks Inc. BSR BSDU BSR BSDU BSR BSDU BSR WipLL Components Base Station Site - Maximum Configuration BSR BSDU -48Vdc 100baseT BSPS BSR GPS IP ATM Other Interface unit (e.g. Router, Switch)

34. © Airspan Networks Inc. WipLL Components SPR SDA 100-240Vac Subscriber Premises Site: Single Subscriber

35. © Airspan Networks Inc. WipLL’s IDR Power Supply Unit IDR 100-240 Vac Subscriber Premise Site: IDR (with external antenna) Subscriber Premise Site: IDR (with external antenna) PC To BSR External antenna RF Cable

36. © Airspan Networks Inc. Operations and Management Systems WipManage TM - network elements manager:  User friendly GUI  Windows based – runs on PC  Works in conjunction with Access DB  Configuration (QoS, security, routing, etc)  Performance monitoring  Trap management  Software upgrade  Multi Device operation WipConfig TM - local configuration tool  Runs on PC and on PDA (new!)

37. © Airspan Networks Inc. WipLL Applications IP Routing and PPPoE bridging WipLL and ATM: Traffic Engineering WipLL VPNs

38. © Airspan Networks Inc. SPR Base Station Site 1 n BSR RAG SDA PPPoE clients SDA PPPoE clients PSTN Backbone: IP / ATM / FR / MPLS SDA SPR BSDUBSDU 10BaseT BSDUBSDU BSDUBSDU BSDUBSDU Router / switch BSPS GPS HEG+ Gatekeeper WipLL using PPPoE for Internet access and IP for VoIP Router / Switch PPPoE server (BRAS) Internet

39. © Airspan Networks Inc. SPR: VLAN 60 Base Station Site 1 n BSR SDA ATM Network SDA SPR: VLAN 80 BSDUBSDU 10BaseT BSDUBSDU BSDUBSDU BSDUBSDU ATM switch BSPS Power GPS WipLL in ATM based network: ATM Switch converts 802.1Q to VCs SDA SPR: VLAN 60 SPR: VLAN 80 VC # 1 VC # 2 SPRs mark VLAN Ids ATM switch maps: VLAN 60  VC#1 VLAN 80  VC #2

40. © Airspan Networks Inc. SPR#1: VLAN 60 Base Station Site 1 n BSR SDA IP backbone SDA SPR#3: VLAN 80 BSDUBSDU 10BaseT BSDUBSDU BSDUBSDU BSDUBSDU IP router BSPS Power GPS Using 802.1Q for VPNs SDA SPR#4: VLAN 60 SPR#2: VLAN 80 SPR#1, SPR#4 use VLAN ID 60 SPR#1, SPR#4 use VLAN ID 80 SPR#1, SPR#4 are in branches of one clinic SPR#2, SPR#3 are in branches of another clinic

41. © Airspan Networks Inc. WipLL Roadmap

42. © Airspan Networks Inc. WipLL roadmap – contents (1) WipLL 4.0 – contents –Improvements for VoIP support –PDA: General release –BSDU FE ports – support all modes –Software support for MMDS and 3.X TDD/FDD – for trials –Auto Download

43. © Airspan Networks Inc. WipLL roadmap – contents (2) WipLL 4.2 – contents –3.5 GHz: 1.75MHz, Power Control –Battery back/up solution for CPE –Sleep mode for CPE –Admission control

44. © Airspan Networks Inc. WipLL Vs other WLL vendors

45. © Airspan Networks Inc. WipLL: advantages in all OSI layers – layer I WipLL: advantages in all OSI layers – layer I WipLL: Cables between Outdoor Unit to Indoor Unit are standard CAT 5 Ethernet cables – in CPE and in Base Station Competitors use IF or RF cables –WipLL’s physical installation is more cost effective –WipLL’s physical installation is easier

46. © Airspan Networks Inc. WipLL: advantages in all OSI layers – layer I WipLL: advantages in all OSI layers – layer I WipLL: Modular Base Station architecture Min: BSR+SDA, Max: 24BSRs+4 BSDUs Add BSRs when needed, add BSDUs when needed Competitors use chassis based architecture –WipLL: more flexible –WipLL: pay as you grow –WipLL’s Base Station saves money and space

47. © Airspan Networks Inc. WipLL: advantages in all OSI layers – layer II WipLL: advantages in all OSI layers – layer II WipLL: PPMA MAC protocol is extremely efficient: –80% utilization –Efficiency does not decrease with number of CPEs –No collisions –Was planned especially for WLL (not imported from W-LAN) –Equal chance of near and far users –Built in QoS: ideal for all applications, including VoIP

48. © Airspan Networks Inc. WipLL: advantages in all OSI layers – layer II WipLL: advantages in all OSI layers – layer II

49. © Airspan Networks Inc. WipLL: advantages in all OSI layers – layer III WipLL is both IP router and PPPoE bridge Most competitors: bridging only –IP routing is more efficient –Inherent IP routing often saves additional hardware –Inherent IP routing simplifies the network management: One NMS for for the WLL system and for routing

50. © Airspan Networks Inc. WipLL: advantages in all OSI layers – layers II-VII WipLL: advantages in all OSI layers – layers II-VII Enhanced QoS based on addresses, protocols and applications Enhanced IP filters based on addresses, protocols and applications Rich networking package: –802.1p/Q –DiffServ/TOS  Interoperability  Traffic engineering  Security

51. © Airspan Networks Inc. WipLL and xDSL

52. © Airspan Networks Inc. WipLL and xDSL xDSL depends on existence of copper Quality of copper and width of copper are varying in different locations xDSL has difficulties in providing a similar level of service to customers (different bandwidth in different distance) xDSL suffers from high initial costs and high cost of DSLAM Maintenance costs of xDSL are high xDSL supports only limited distances ADSL does not fit business customers because of asymmetry ADSL does not fit symmetric applications (like Video games)

53. © Airspan Networks Inc. WipLL and xDSL WLL: no need for copper, no dependency on reliability of copper WipLL’s Base Station is much more modular than a DSLAM WipLL has lower initial costs than xDSL solutions WLL: less maintenance costs Longer distances: WipLL can reach more than 10KM, xDSL is for short distances only WipLL is ideal for Residential and business customers WipLL is ideal for all applications: symmetric, asymmetric

54. © Airspan Networks Inc. WipLL and xDSL – some ideas xDSL cannot serve as the only solution: –Use WipLL for ‘low initial costs start’ –Use WipLL for remote subscribers –Use WipLL as infill for xDSL (in xDSL projects often the coverage reaches only 70%) –Use WipLL for business customers

55. © Airspan Networks Inc. WipLL Case Study

56. © Airspan Networks Inc. SpeedNet Project: Japan Customer: utility company Service: high speed Internet for residential end users Current contract: 30,000 end users Already connected: 20,000 end users Motivation: utilization of existing Fiber-Optic Backbone Micro cell concept: –BSRs are installed on electric poles –Using external omni antenna Features in use: –Auto Connect –PPPoE bridging –Fairness

57. © Airspan Networks Inc. Base Station on a pole BSR is in the Outdoor Enclosure

58. © Airspan Networks Inc. WipLL – BSR on pole

59. © Airspan Networks Inc. BSR on a Pole

60. © Airspan Networks Inc. External Antenna on the pole

61. © Airspan Networks Inc. You are now a WipLL expert - thanks !!