Broadband Satellite Access

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Full text

(1)

Broadband

(2)

Agenda

Introduction

Market Dynamics

Technology & Equipment

Xilinx Solutions

(3)

What is Broadband Satellite?

Broadband Satellite technology uses a RF satellite link to

provide subscribers with broadband Internet access

– Similar to the technology used in Direct-to-the-Home (DTH)

video broadcast (DirecTV, Dish Network); can coexist

Targets users in a location with poor or nonexistent

terrestrial infrastructure

Early “one-way” systems capable of up to 400 kbps

download, but used 56 kbps analog modem for upload

New “two-way” systems expected to perform at 1 Mbps

download and 500 kbps upload typically

(4)

Benefits & Applications

Benefits

• High-speed, always-on

Internet connection

• Access for users in areas with

non-existent or poor terrestrial infrastructure

• Integrated with

Direct-to-the-home TV equipment

• Works well for

broadcast-oriented data traffic

Applications

• High speed Internet access

• Multimedia, elearning, gaming

• Video on Demand

• VPN

(5)

Broadband

(6)

Drivers & Challenges

Drivers

– Demand for high-speed internet in areas with poor or

non-existent terrestrial infrastructure

– Decreasing component costs

– Standardization for increased vendor interoperability

Challenges

– Decreasing cost for equipment two-way terminals

– Latency needs to be improved

– Increasing capacity to mitigate shared bandwidth architecture

(7)

Revenue Growth & Players

Worldwide broadband satellite equipment market

forecasted to grow from $300M in 2000 to $1.6B in 2007*

Main Service and Equipment providers

– Hughes Electronics: DirecWay service

• Formerly DirecPC; provider of DirecTV

– Echostar Technologies: Starband service

(8)

Technology &

Equipment

(9)

Satellite Access Service Provider Hub Station Home User Dow nload Upload PSTN

One-way Architecture

• Home users “dial-up” connection to upload data to the service

provider’s Hub station which forwards the request to the internet

• Requested data is broadcast back to home users via satellite

• Have fast download, but slow upload

– Sufficient for normal web surfing, downloading, video/audio streaming

(10)

Satellite Access Service Provider Home User Dow nload Upload

Two-way Architecture

Internet

• Satellite transmission in both Download and Upload channels

• Download is a broadcast protocol and Upload is TDMA-based

• Much faster upload speeds compared to one-way architecture

– Good for applications like video conferencing (high-bandwidth, two-way communication)

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Standards

Proprietary standards

– DSS: Hughes Network Systems (HNS) proprietary

Open standard

– DVB consortium standard: DVB (ETS 300-421)

– Recently proposed DVB Return Channel over Satellite

(DVB-RCS) as the standard for the return channel on newer two-way systems

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Satellite Access Equipment

Subscriber Side Ground Terminal

– Outdoor Unit (ODU)

• A small (~2-3 ft diameter), low-cost dish antenna with transmit and receive components placed at the focal point of the antenna

• Receives/sends data from/to the satellite in two-way systems

• One-way systems use a dish for download direction only

• Needs to face the southern sky for proper transmission

– Indoor Unit (IDU)

• A Satellite Modem which serves as an interface between the ODU and customer equipment and controls satellite transmission

• Analog Modems are used in one way systems to upload subscriber data to the ISP via the PSTN

(13)

Satellite Access Equipment

Service Provider Ground Station (Hub)

– Outdoor Unit

• Dish antenna (15-36 feet) and transmit/receive operate similarly to subscriber terminals

– Indoor Unit (Access Server/Gateway)

• The equipment which demodulates an incoming signal from the ODU carrying IP packets and sends the packets to local network

• Traffic could be transported to the Internet, over a VoIP gateway to the PSTN, to a local cache, from a streaming server, etc.

• Network Management System (NMS) is the portion of the satellite server that manages the activity at the Hub

(14)

Satellite Access Equipment

Spacecraft

– High-power, Geostationary Earth Orbit (GEO) satellite located

at 23,800 mi. above the equator and operating typically in the Ku-band (11-14 Ghz) and/or Ka-band (20-30 Ghz)

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Xilinx – The PLD Industry

Leader

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The Spartan-3 Platform

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World’s Lowest Cost FPGAs

Spartan-3 Family Matrix

Device XC3S50 XC3S200 XC3S400 XC3S1000 XC3S1500 XC3S2000 XC3S4000 XC3S5000

System Gates 50K 200K 400K 1000K 1500K 2000K 4000K 5000K

Logic Cells 1,728 4,320 8,064 17,280 29,952 46,080 62,208 74,880

Block RAM Bits - 216K 288K 432K 576K 720K 1,728K 1,872K

Distributed RAM Bits 12K 30K 56K 120K 208K 320K 432K 520K

Max Single Ended I/O 124 173 264 391 487 565 712 784

Max Differential I/O 56 76 116 175 221 270 312 344

Availability NOW 2H 03 2H 03 NOW 2H 03 2H 03 2H 03 2H 03

Volume Pricing < $20* < $100*

Device XC3S50 XC3S200 XC3S400 XC3S1000 XC3S1500 XC3S2000 XC3S4000 XC3S5000

System Gates 50K 200K 400K 1000K 1500K 2000K 4000K 5000K Logic Cells 1,728 4,320 8,064 17,280 29,952 46,080 62,208 74,880 Block RAM Bits - 216K 288K 432K 576K 720K 1,728K 1,872K Distributed RAM Bits 12K 30K 56K 120K 208K 320K 432K 520K Max Single Ended I/O 124 173 264 391 487 565 712 784 Max Differential I/O 56 76 116 175 221 270 312 344 Availability NOW 2H 03 2H 03 NOW 2H 03 2H 03 2H 03 2H 03 Volume Pricing < $20* < $100* 3 Devices Under $10* 1 Million Gates 391 I/Os Under $20* 4 Million Gates 712 I/Os Under $100*

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Low Cost Spartan-IIE FPGA

Total Cost Management for Consumer Products

No obsolete inventoryExtend product life

through design upgrades

Cost-optimized silicon and packagingHardware software

co-development Fewer engineer-ing man hoursNo NRE

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CLB IOB CLB CLB CLB IOB IOB IOB CLB CLB CLB CLB CLB CLB CLB CLB CLB IOB CLB CLB CLB IOB B R A M DLL DLL IOB CLB CLB CLB CLB CLB CLB CLB CLB CL I O B CL I O B I O B I O B I O B B R A M DLL CLB IOB CLB CLB IOB IOB IOB B R A M CLB CLB CLB CLB B R A M CLB CLB CLB CLB I O B I O B I O B I O B I O B I O B CL CL B R A M I O B CLB DLL B R A M IOB 2ns 2ns 2ns CLB TilesFast, predictable interconnect CLB Differential I/O400 MbpsLVDSBus LVDSLVPECL I O B

Delay Lock Loops

200+ MHz performance

4 DLLs in every device

Deskew 4 system Clks

Zero-delay clock conv.

CLKIN CLKFB RST CLK0 CLK90 CLK180 CLK270 CLK2X CLKDV LOCKED DLL Dual-Port 4Kbit BRAM Port B Block RAMUp to 64Kbits200 MHz B R A M System I/OTM19 signaling standardsChip to BackplaneChip to MemoryChip to Chip IOB

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Viterbi Decoder Tuner Interface Flash System Interconnectivity CPU RAM QPSK/BPSK Demodulator Synch & De-Interleaver Reed-Solomon Decoder Descrambler Clock MPEG Transport & A/V I/O

Decryption Video Encoder MPEG A/V FIFO ADC

Quadrature Data from Tuner

Clock Generator Q - Channel Input I - Channel Input ADC De-Interleaver RAM

Xilinx in Satellite Modems

USB Controller

Data

ODU

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Spartan-IIE Device Functions

• 32-bit soft processor

– MicroBlaze

• Processor interface

– Control registers, watchdog timer

• Data buffering

• USB 2.0 controller interface

– Bus arbitration, FIFO control, DMA control

• 32-bit CRC check for

incoming packets

• PCI target interface

– Lets RISC chip take over host processor functions

• 10/100 MAC

– Used to interface Satellite gateway to the 10/100 local network

• Encryption

(23)

Soft Processor Solution

Runs at 150Mhz, delivering 100 D-MIPS and features

Harvard style 32-bit RISC architecture

– More than three times the D-MIPS speed and half the density

of the nearest competitor

– Full 32-bit operands, 32-bit data path and 32-bit registers

providing maximum performance

– Supports both on-chip BlockRAM and/or external memory

Designed with compatibility and reuse in mind

– Standard set of peripherals use the same CoreConnect OPB

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Block Diagram

Off-Chip Memory 0-4GB Off-Chip Memory 0-4GB

Machine Status Reg

Program Counter Data Bus Controller Register File 32 x 32bit r0 r1 r3 1 Address side LMB CoreConnect OPB I/F CoreConnec t OPB I/F TM TM Data Side LMB UART Timer / Counters Interrupt Controller General Purpose I/O Watchdog Timer Instruction Buffer Inst ruct ion Bus Cont roll er Control Unit Multi ply Multipl y Add / Subtract Shift / Logical Multiply PROCESSOR PERIPHERALS I-LMB I-OPB D-OPB D-LMB

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MicroBlaze Features

• Processor

– Powerful 32-bit RISC architecture

– Efficient Harvard-style busses

– Efficient 3-operand instruction word

– 100 D-MIPS (Dhrystone 2.1)

– 32-bit data path (non-multiplexed)

– 32-bit general purpose registers (32 registers)

– Fast operation – 125MHz on Virtex-II (-5) FPGAs

– Minimal logic requirements – uses less than 900 Logic Cells

– IBM CoreConnect bus for interconnect • Peripheral set: – UART, GPIO – Timer/Counter – Interrupt Controller – Watchdog Timer

– External Flash and SRAM interface

– Arbiter

– 10/100 Ethernet MAC

– SPI

– IIC

• Internet Reconfigurable Logic (IRL)

– Allows change of hardware design remotely over any network

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Satellite Hub Gateway

Ethernet MAC/PHY Satellite Modem PSTN VOIP Switch Internet Router Streaming Server

Satellite Hub Gateway

Network Mgmt. Server

(27)

Virtex-4 Breakthrough Innovation:

Embedded Hard IP

200,000 Logic Cells 0.6-10.3125 Gbps RocketIO™ Transceivers PowerPC®

Processor with APU

10/100/1000 Ethernet MAC 500 MHz XtremeDSP™ Slice 1 Gbps SelectIO™ with ChipSync™ AES Secure Chip

Design Security

500 MHz BRAM with FIFO & ECC 500 MHz Xesium™

(28)

Multiple Platforms

Endless Possibilities

LX Platform Highest logic density &

performance

SX Platform Unrivaled DSP

performance

FX Platform

Only FPGA with hard µP & serial transceivers Logic Memory DCMs DSP Logic Memory DCMs DSP Logic Memory DCMs DSP RocketIO PowerPC

(29)

Choice of 17 Devices

24 4 2 192 896 20 9,936 142,128 XC4VFX140 20 4 2 160 768 12 6,768 94,896 XC4VFX100 16 4 2 128 576 12 4,176 56,880 XC4VFX60 12 4 2 48 448 8 2,592 41,904 XC4VFX40 8 2 1 32 320 4 1,224 19,224 XC4VFX20 -2 1 32 320 4 648 12,312 XC4VFX12 -512 640 8 5,760 55,296 XC4VSX55 -192 448 8 3,456 34,560 XC4VSX35 -128 320 4 2,304 23,040 XC4VSX25 -96 960 12 6,048 200,448 XC4VLX200 -96 960 12 5,184 152,064 XC4VLX160 -96 960 12 4,320 110,592 XC4VLX100 -80 768 12 3,600 80,640 XC4VLX80 -64 640 8 2,880 59,904 XC4VLX60 -64 640 8 1,728 41,472 XC4VLX40 -48 448 8 1,296 24,192 XC4VLX25 -32 320 4 864 13,824 XC4VLX15 RocketIO transceiver 10/100/ 1000 EMAC PowerPC XtremeDSP Slice SelectIO DCM Block RAM [Kb] Logic Cells Device

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Virtex-II Pro FPGA

(31)

Virtex-II Series Expanded to

Include Virtex-II Pro FPGA

Virtex-II Logic, Routing, Features

– Upward compatible, same design tools

– Embedded Multipliers, SelectIO-Ultra (with 840Mbps LVDS), DCI/XCITE, DCM

Up to 24, 3.125 Gbps serial transceivers

– Channel bonding, 8b/10b encoding – Supports high-speed interfaces inc GbE, 10GbE (XAUI), PCI/PCI-X, Infiniband, RapidIO, HyperTransport, FlexBus 3/4, POS-PHY 3/4

Up to four IBM 405 PowerPC®

– 32-bit RISC CPU: 420 DMIPS @ 300 MHz – The leading embedded CPU

architecture in telecom & networking infrastructure – IBM CoreConnect™ on-chip bus

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Virtex-II Pro Enables Transition

from Parallel to Serial I/Fs

SelectI/O-Ultra™

technology for parallel interfaces

Rocket I/OMulti-Gigabit Serial Transceivers

Up to Twenty Four 3.125 Gbps transceivers

32b @ 78 MHz

32b @ 78 MHz Gb Serial

Transceiver TransceiverGb Serial

Reg Reg DDR mux 3-State OCK1 OCK2 Reg Reg DDR mux Output OCK1 OCK2 PAD Reg Reg Input ICK1 ICK2 IOB P N DDR FF IOB • 25 I/O Standards • XCITE Technology • 840 Mbps LVDS • Dedicated DDR Registers

• Helps preserve investment in legacy designs

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Virtex-II Platform FPGA

The Winning Architecture

Virtex-II Platform FPGA

The Winning Architecture

BlockRAM

XtremeDSP™ - multipliers

DCM™

XCITE technology - DCI

SelectIO-Ultra™

BlockRAM

XtremeDSP™ - multipliers

DCM™

XCITE technology - DCISelectIO-Ultra™

#1 FPGA architecture

150 nm 8-layer metal CMOS

Advanced logic & routing

Highest density in the industry

Embedded Dual Port RAM

#1 FPGA architecture

150 nm 8-layer metal CMOSAdvanced logic & routing

Highest density in the industryEmbedded Dual Port RAM

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Virtex-II Features

50 : Impedance Controller Digital Clock Management (DCM) -Precise Clock clock signal control signal CLKIN RST CLK0 CLK90 CLK180 CLK270 CLKDV LOCKED CLKFX180 PSEN CLKFX PSDONE CLK2X180 PSINCDEC STATUS[7:0] DSSEN PSCLK CLK2X CLKFB 18 Bit 18 Bit Embedded DSP functionality - up to 500 Billion MAC/s 50 : 36 Bit Active Interconnect Technology with a 300 MHz 0 500 1000 1500 2000 2500 3000 3500 4000 0 200 400 600 800 1000 LUTs Reached Del a y (ps) 4000XL Virtex Virtex-II Φαστεστ ΦΠΓΑ ον τηε Πλανετ SelectIO™ 25 IO types including XCITE Digitally-Controlled

Impedance (DCI) for simpler PCB layout

BRAM

Embedded DualPort RAM -for Data Buffering

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Supporting Legacy &

Evolving System Interfaces

PCI 32/64 10/100 Ethernet (MII) Proprietary RapidIO POS-PHY L3/L4 FlexBus 3/4 CSIX HyperTransport SPI4 Phase1, Phase2 Gigabit Ethernet - GMII 10 Gbit Ethernet (XGMII)

840Mbps LVDS Proprietary QDR SRAM NoBL/ZBT SRAM SDR/DDR SDRAM FCRAM Sigma RAM RLDRAM CAMs Xilinx Virtex-II Pro FPGAs Serial RapidIO Infiniband 3GIO/Arapahoe Fibre Channel

(37)

Optical Networking Related

Soft IP Available Today

• Networking / Telecom

– 1/10Gb Ethernet MACs - XAUI, XGMII – 10/100 Mbps Ethernet MACs

– T1/E1 Framer/De-framer – UTOPIA Level-2/3 PHY-ATM

– Network Classification Processor (2.5Gbps) – HDLC Controller

– 8b/10b Encoder Decoder – Cell Assembler/Delineation – CRC10/32 Generator/Verifier – ADPCM 16 - 1024 channels

• 32-bit Xilinx Soft Processor: MicroBlaze

• 8-/16-bit Microcontrollers

• SystemIO Interfaces

– RapidIO

– PCI-X 64-bit / 100 MHz – PCI 32/33, PCI 64/66

– SPI-3, SPI-4 P1/P2, FlexBus 3/4, POS PHY L3/L4, SFI-4

– CSIX, HyperTransport, 3GIO, Fibre Channel, Infiniband

• High-Speed Memory Interfaces

– SRAM - ZBT, QDR – DDR SDRAM – CAM

• Encryption

(38)

Summary

Satellite Internet Access is a growing segment of the

larger Broadband Access market

– Is considered a niche market compared to DSL and Cable

Access, but still significant

Xilinx provides Silicon and IP solutions for Satellite

Broadband equipment at the SP and Customer Premises

– Spartan IIE series of FPGAs is a solution for designs requiring

low cost and high volume, e.g. modem

– Virtex-II & Virtex-II Pro are solutions for high-end designs

requiring highest density and performance, e.g. gateway

Figure

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References

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