Upload
others
View
2
Download
0
Embed Size (px)
Citation preview
IHPIm Technologiepark 2515236 Frankfurt (Oder)
Germany
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Dedicated Processors for Wireless Systems
Prof. Dr. Rolf Kraemer
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
New Institute and Cleanroom
March 2000
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
What is the IHP?
• German National Lab focused on broadband and mobile connectivity200 staff, $30M annual base budgetCore competencies in technology, circuit design, systems
• Successor to Institute of GDR Academy of SciencesMajor role in developing microelectronics technologiesWinner of 17 GDR national prizes
• Refounded 1991 as classic German research institute“Application-oriented fundamental research”
• Focus on innovation, major re-engineering started 1996Prof. Abbas Ourmazd leads the institute with US spirit
• Customer base of 30 international companiesIntel, Motorola, Lucent, Infineon, Alcatel, Siemens, et al.
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
IHP in a Nutshell
• Strategyfocus on wireless communication (initially in the 2 - 10 GHz range)going up to 60 GHz and RADAR using high performance SiGeC technology
collaborate closely with strategic industry partners
core competencies range from system and circuits design to technology and process development
seek synergy between material physics, process technology, circuit design, systems, and applications (vertical approach)
prototype forward-looking, system-level solutions with secured migration paths into the market
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
IHP in a Nutshell
• CompetenciesSystem Activities started 1999 (now 26 people)
Wireless Internet applications and protocols; Broadband radio LANs (up to 1Gb/s); Body area networks; System on Chip
Circuits started 1997 (now 10 people)CMOS for RF 2.4 GHz level Wireless LAN 5.8 GHz, a domain for SiGe technology60 GHz components for Gb WLANRadar Circuits for automotive applications (76-124 GHz)UWB Frontends for ultra low power systems (e.g. body area networksLDMOS Power Electronics (integrated power amplifiers, switches power control circuits)
Process Technology (86 people)SiGe:C HBT module for post-CMOS IntegrationPerformance (>200GHz ft, fmax) comparable with IBM with much simpler process
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
IHP-Structure
System Design
Supervisory BoardChair: Sts Dr. Ch. Helm
Deputy Chair: MinDir Dr. W.-D. Dudenhausen
DirectorsScientific Administrative
Prof. Dr. W. Mehr
Sci. Advisory CouncilChair: Prof. U. Gösele
Sci. & Tech. CouncilChair: Dr. D. Krüger
Financial Adv. CouncilChair: V. Düppe
System DesignProf. R. Kraemer
Head
Circuit DesignProf. R. Kraemer
Head
BreakthroughProf. B. Dietrich
Head
Process ResearchDr. B. Tillack
Head
Materials, Diagnostics,FoundryDr. W. KrügerActing Head
Process Integration& Pilot LineF. Fürnhammer
Head & Technology Coordinator
Quality & Tech. StrategyDr. G. Ritter
Finance & AccountingDr. Ch. Quick
PersonnelDr. Ch. Quick
Works CouncilChair: B. Kuck
Sci. & Technical ServicesL. Hartmann
Marketing & StrategicCustomer Relations
Dr. W. Mehr
External ResearchDr. H. Richter
G. Stöcker
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Wireless Internet
Shoppingmall
Museum
Internet
Airport Fair
Industry
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Location-Awareness in Concept
Localworld
Localappli-
cations
Local Application MappingLocator database
Objectprofiles
Applicationbehavior
Objects
Applications
Areas
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Services
• Local information deliveryPush and pull modes
• Location-dependent servicesTrain information at the station, etc.
• Tagging (attachment and selective use of information to objects)Tell me, but not Jane, it is her birthday as she goes by
• Third party notificationYour teenage daughter has gone into the disco
• Location & navigation servicesComplex, property-based queries
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Wireless Internet Challenges
Attribute Now Needed Challenges
Bandwidth 9.6 Kb/s140Kb/s GPRS
20-50 Mb/s1Gb/s planned
1000x10000
Processing 100 MIPS 10,000 MIPS 100x
Powerconsumption
1 mW/MIPS 0.01 mW/MIPS 100x
No. of chips 10-50 1 Not possible at present
Form factor Brick Single chipDistributed
Internal comms., Powerdistr., Package
Software Win Ce, PalmOS Java/Jini HW independent SW
Services VOICE+ data TRANSACTIONS +DATA + voice
Integrated, seamless,secure
Features Undifferentiated Location, ContextEnvironment aware
Need platform
Cost $299 $99 Margin too low forservice pricing
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Wireless Engine
RFBBDLC
JavaEng.
Prot.Eng.
PowerMang.
BB
Phy
DLC
TCP/IP
ApplTestEng.
Man
agem
ent P
lane
Non Functional Requirements
Basic Communication Processing
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Wireless Engine
RFBBMACLLC
JavaEng.
Prot.Eng.
Displ.Eng.
PowerMan.
RISCCore Coproc. DSP
Core Coproc.
Test Processor
FILTER
FILTER
LNA
P-AMP
MIXER
MIXER
30 GHz
CTRL
60 GHz Antenna Array
On- chip
60 GHz Antenna Array
On- chip
FILTER
FILTER60 GHz
60 GHz
x 2
SiGe CMOS process/device development
60 GHz broad band wireless commmunication engine
VCO
VCO
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
WBN system modules
A/D
D/A
Synchronization
GuardintervalExtractionFFT
DemodulationDeinterleaver
ViterbiDecoder +Descrambler
IFFT+GuardintervalInsertion
InterleaverModulation
Scrambler +Forward ErrorCorrection(FEC) Coder
Ana
log
Fron
t E
nd
Medium Access Control
- Layout ready
- Design ready
- Software ready
- Acceleratorready
- Componentsready
PHY
DLC
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
MAC Accelerator
RISC processor
(MIPS, NetARM)
HW accelerator
Timers Tx RxChannel State
PHY Interface
Digital baseband
processing
Channel encoding,synchronization
Byte stream processing, timers
Control of protocol operation,management functions
8 bit Interface
32 bit Interface
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
MIPS Target Architecture for 802.11a
MIPS
Bus
sla
veMemorycontroller
UART
Par. port
GPIO
PCMCIABus interface
802.11 MACHW accelerator
SRAM Flash
EC bus
RAM
Cache
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
World first: 1st Single-Chip 5 GHz Modem
Main Components:
1. 5 GHz Analog Frontend (5,8 GHz Superhet., IF 810 MHz)
2. A/D and D/A Converters (7 Instances)
3. OFDM Baseband Processor with Synchronisation and Channel Estimation
4. MAC-Processor (MIPS-4kE) with Hardware-Accelerator
5. PCMCIA (CardBus) Interface plus 2x UART and 1x I2C-Bus Interface
6. Cache-Memory for MIPS und Data Buffers (44 kByte in total)
7. Built-in Self-Test (BIST) with various specific test-modi
8. EMI protection: n-well Ring, GND-Ring,Buried Layer inside AFE
Main Parameters :
• Chip-Area: ca. 90 mm2
• No. of Pins: 240
• Power dissipation: 2W (simulated)
• Clock frequency: 80 MHz
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Single chip 5 GHz IEEE 802.11a Photo
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Architecture of TCP/IP/DL Device
Amba busMIPS CPU
InternalSRAM
Logic/ Register File
Checksum
System Interface(IRQ, sleep mode)
PCMCIAController
DriverHost System
TCP/IP/DL device
Data RAM
Instr RAM
Scratchpad RAMs
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Digital Coprocessors
• Certain basic protocols cost GIPSE.g., Viterbi costs 3.5 GIPS
• Indicates need for “hardwired” implementationParticularly for frequently used algorithms
• Hardwired solutions often eaten up by general purpose processorsMoore’s law is cruel
• Processors evolve by integrating such functionsE.g., floating point accelerators (386 -> 486 transition)
• Develop accelerators for key functionsTo work with standard processors and DSP’s
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
M-business Engine Project
RF
BB
DLC
Prot.Eng.
PowerMan.
TestEng.
MultimediaEngine
GamingEngine
M-businessEngine
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Overview of the work packages
Architectures: Security, Privacy, Payment
PLASMA
Application client
PLASMA
Application server
Payment
Privacy
Security
Payment
Privacy
Security
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
• TCP has been initially designed for wired low error rate communications
• Back-off behaviour after faults often not appropriate for wireless Slow start after faults solves router congestion but not temporary channel interference
• TCP is useful for end-end semantics in Internet application scenariosA chance of TCP semantics requires changes in billions of clientand is not feasible
• Other solutions are needed to overcome the problems
TCP/IP for wireless
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Minimal change and maximal use scenarios
TCP
IP
LLC
MAC
PHY
TCP
IP
LLC
MAC
PHY
MAC
PHY
MAC
PHY
LLC LLC
TCP
IP
LLC
MAC
PHY
TCP
IP
LLC
MAC
PHY
MAC
PHY
MAC
PHY
LLC LLC
TCP
IP
LLC
MAC
PHY
TCP
IP
LLC
MAC
PHY
MAC
PHY
MAC
PHY
LLC LLC
Modified TCP Modified Link Layer
TCP
IP
LLC
MAC
PHY
TCP
IP
LLC
MAC
PHY
MAC
PHY
MAC
PHY
LLC
TCP
IP IP
TCP
LLC
Split Connection Modified Mobile
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Combining Defective Packets: Principle
BER = p
BER = 3p2
Memory 1
Memory 2Memory 3
1.Retry
2.Retry
3.Retry
Weighted Average
Cyclic Redundancy Check
data
data with errors
data without errors
10-3 3*10-6
0 1 0 0 0 0 1 1 1 0 1 0 1 0
0 1 1 0 0 0 1 1 1 1 1 0 1 0
0 1 1 0 0 1 1 1 1 0 1 0 1 0
0 1 1 0 0 0 1 1 1 0 1 0 1 0
. . . . . . . . . . .
0
1
1
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
RF Blocks
• RF I/O one of the biggest challengesRF design is an artRF designers behave like artists
• Large range of frequenciesFrom 2.4 - 60 GHz
• Lots of discussion about new architectures, few resultsAlcatel direct-conversion phones stink!
• Need library of RF “transceiver macros”Technology dependent, high value
• Must solve cross-talk problemBy brute force, or finesse; circuit or technology tricks
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
5.8 GHz Transceiver
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Body Area Networks
• BAN: Assembly of wirelessly connected devices worn on the bodyAll devices share common "BAN engine"All devices share distributed intelligenceEnables new applications: e.g. "Personal Trainer"
Pulse-meter
Step(frequency)-counter
Walkman
Headset
Wireless CommunicationSystem
ApplicationEngine
I/OEngine
Inter Module Communication
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Distributed Wireless Engine (Body Area Networks)
RFBBDLC
Prot.Eng.
RFBBDLC
Prot.Eng.
Appl.Eng.
I/OEng.
IMC
RFBBProt.Eng.
Inter Module Communication
RFBBDLC
Prot.Eng.
Processors for external communication (Bluetooth, DECT, IEEE802.11, GSM, etc.)
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Example of a body area system
Distributed Middleware
ApplicationEngine
MP3Player
IMC
ApplicationEngine
StepCounter
IMC
ApplicationEngine
HeadSet
IMC Mikro
ApplicationEngine
Puls-Counter
IMC Display
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
BAN with Wake-up using 802.15.4/4 in 2.4 GHz
802.15.3MAC
8-state Trellis
Encoder
2.4 GHz RF
QPSK Modulator
11, 33-55 Mb/s
22 Mb/s
802.15.4MAC
Differential Encoder
20/40 kbps
250 kbps O-QPSK Modulator
16-ary PN Spreading
15-Chip Spreading
BPSK Modulator
868/915 MHz RF
2 Mchip/s
QPSK, 16/32/64-QAMModulator
300/600 kchip/s
Differential Encoder
11 Msps
1 Msps
300/600 ksps
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
From Protocol Stack to Functional Network
Digital BB
MAC
LLC
Network
Transport
Analog FE
RPC Interface
OS/Appl.
Medium
•Fragm./Reass.•Error Check•ARQ•Conn.-Mgmt•Flow Control
•Addressing•Routing
•Addressing•Fragm./Reass.•Error Check•ARQ•Conn.-Mgmt•Flow Control•Encryption
•…•Encryption
•Coding•Modulation•...
Fragm.-Reass.
FlowControl
Conn.-Mgmt
ErrorCheck
Encryption Coding
OS/Application
Medium
Control/Configuration
Module
Addressing
ARQ
Modulation
Analog FE
RPC Interface
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
VCO Circuit Principle
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Measurement Results
Parameter 60 GHz VCO 76 GHz Oscillator
Supply voltage -3.0 V -4.0 V
Supply current 24.6 mA 32 mA
Centerfrequency 63.6 GHz 76.1 GHz
Tuning range 9.8 GHz -
Output power -17dBm -7 dBm
Phase noise at1MHz offset
- 87 dBc/Hz- 84 dBc/Hz* -91 dBc/Hz
Chip size 750x400 µm2 750x400 µm2
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
60 GHz VCO Micrograph
VEE
IE
gnd gndout out
resonator
Vctrl
Achip=750 x 400 µm2, L=126 pH, Cmax=150 fF
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Tuning Range
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
76 GHz Oscillator Micrograph
VEE
IE
gnd gndout out
resonator
Achip=750 x 400 µm2, L=90 pH, CMIM=120 fF
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Measured Spectrum
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
C Suppresses B Diffusion
IHP Im Technologiepark 25 15236 Frankfurt (Oder) Germany www.ihp-microelectronics.com © 2001 - All rights reserved
Conclusions
• IHP is a highly innovative research institute withVertical structure for full system solutionsModern equipment including class-1 clean-roomHighly educated/motivated people
• Start-ups and Spin-offs are part of the strategy to create sustainable jobs in east Brandenburg
• Industrial relations in high end systems, circuits and technology are key to our success