New Bluetooth measurement and solution for Bluetooth low energy MMD APAC Application Support Manager Magic Lin +886-933-710-634 magic.lin@anritsu.com v. H Slide 1
Agenda 1. History of Bluetooth 2. Special Bluetooth measurements 3. BLE and EPC 4. Bluetooth high speed measurement Slide 2
Agenda 1. History of Bluetooth 2. Special Bluetooth measurements 3. BLE and EPC 4. Bluetooth high speed measurement Slide 3
History of Bluetooth Bluetooth 1.0 and 1.0B (1999) Suffered from a number of interoperability and anonymity problems. Bluetooth 1.1 (2001) Improved robustness. Support for non-encrypted channels. Received Signal Strength Indicator (RSSI). Bluetooth 1.2 (2003) Adaptive frequency-hopping (AFH) to avoid interference with other wireless protocols. Extended Synchronous Connections Oriented links (esco) improved voice quality of audio connections. Slide 4
History of Bluetooth (ii) Bluetooth 2.0 (2004) Enhanced data rates (EDR) bringing data transfer rates of up to 2.1 Mbit/s. Reduced power consumption. Bluetooth 2.1 (2007) protocol enhancement ; no RF changed { MT8852B already supported after v4.10.000 firmware version} Specification improvements and feature enhancements including: Extended Inquiry Response Secure Simple Pairing Slide 5
Bluetooth Branding The Bluetooth word mark and logos are owned by the Bluetooth SIG. The word mark and logos are licensed out for use under the conditions defined in the Bluetooth Brand Book. The Bluetooth mark should be accompanied by the registered trademark symbol. The Bluetooth word should also be attributed with the trademark footnote:- The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Anritsu is under license. Slide 6
Bluetooth tech application in Everywhere 11/25/2008 Slide 7
Agenda 1. History of Bluetooth 2. Special Bluetooth measurements 3. BLE and EPC 4. Bluetooth high speed measurement Slide 8
Auto Inquiry RF RS232/ USB Baseband Radio IC Test Jig Customers Radio Interface 11/25/2008 Slide 9
Test Concept 1 We must can link the DUTs 2 EUT must into Test Mode success 3 Test instrument runs selected measurements 11/25/2008 Slide 10
Test Mode Test mode is defined in the Core Bluetooth Specification, 2.1 and is mandatory for product qualification. Test mode enables a test instrument to put the EUT into the following conditions: Loopback mode EUT returns the payload sent by the tester TX mode EUT sends a defined packet each time it receives a Null packet from the tester Payload - PRBS9(2 9-1)= 511 bits, 10101010, 11110000 Hopping - On or Off Packet length Longest (DH1, DH3, DH5, DM1, DM3, DM5) standard rate pkts (2-DH1, 2-DH3, 2-DH5 2 Mbps) EDR pkts (3-DH1, 3-DH3, 3-DH5 3 Mbps) 11/25/2008 Slide 11
DH1 PRBS 9 payload 72 bits access code/ 54 bits header / 224 bits payload / CRC 11/25/2008 Slide 12
Loopback mode Tx modes 11/25/2008 Slide 13
MT8852B is a Qualified product Only Anritsu has Bluetooth SIG Qualified RF one box tester certificate. Listing on both www.bluetooth.com & www.bluetooth.org websites BQE from AT4wireless Gives users independent confirmation of quality of measurements 11/25/2008 Slide 14
Support Hardware Support fully spec. Core spec v2.0+edr + RF Test Spec Support Software BlueSuite Pro3 (v4.03.000) One touch operation RF + EDR + EVM + Audio + LMP + view EUT Feature+ Auto sensitivity search + each channels measurements BlueTest2 (v1.2.3) Mass production software ( Open VB.net source code ) 11/25/2008 Slide 15
BlueSuite Pro3 - software performance 11/25/2008 Slide 16
BlueTest2 -software 11/25/2008 Slide 17
Link Manager Process (LMP) 11/25/2008 Slide 18
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Link Manager Process (LMP) Error code for help Debug 11/25/2008 Slide 24
Link Manager Process (LMP) Error code for help Debug 11/25/2008 Slide 25
Link Manager Process (LMP) Detail analysis for These Error code by our two software tools Free Opt-MX885201B 11/25/2008 Slide 26
Agenda 1. History of Bluetooth 2. Special Bluetooth measurements 3. BLE and EPC 4. Bluetooth high speed measurement Slide 27
History of Bluetooth low energy Conceived by Nokia in 2001 Wibree Forum announced in 2006 Merged with Bluetooth SIG in 2007 Wibree has now been fully integrated into the Bluetooth SIG the Wibree name is no longer used Original working name within SIG was Ultra Low Power Bluetooth (ULP) Now Bluetooth low energy Slide 28
Why Bluetooth low energy? Lower power Lower cost Means more use cases Typical Bluetooth low energy devices will operate from button cell batteries (Lithium CR2032, CR 1230) Target Bluetooth low energy device life from a single battery is 6 months to 2 years Slide 29
What are the new low energy use cases? Sports and Fitness General health and Wellbeing Automotive Remote displays (Watch, custom panels) Home and Entertainment Office PC and Phone applications Slide 30
LE applications - fitness Sensors in running shoes and on body Sports watch displays outputs Slide 31
LE applications - healthcare Sensors on body send data to phone Phone automatically sends data to HealthCare company or own PC for analysis Slide 32
LE applications - automotive Sensors around the car send data to driver via dashboard Sensors in car send service and fault data to mechanic Slide 33
LE applications - remote displays Phone display transferred to watch See incoming caller name Accept/Reject calls Control MP3 player Configurable display panel Panel configured to control whatever device it is close to! TV Music player Home alarm Slide 34
LE applications - home entertainment Game controllers Remote controller Slide 35
LE applications - office PC and phone Low power wireless mouse and keyboard Lock PC with phone Phone alarm Authentication Slide 36
Bluetooth BLE radio technology 2.4GHz radio Can use same silicon as Bluetooth BR/EDR 40 channels 3 Advertising 37 data 2MHz Channel spacing GMSK/FSK modulation with 0.5 Mod Index Only 1 packet type! Pre amble Sync Header Payload Data CRC Slide 37
How is power minimised? Simple architecture Only transmit data when necessary Send shortest possible packets Connect Send packet Disconnect Slide 38
Bluetooth low energy radios There shall be 2 types of Bluetooth low energy radio Slide 39
Technology comparator Range Relative power BR/ v2.1+edr 10 meters 100 meters Low Energy 15.4+ZigBee NFC (RFID) >10 meters >100 meters <1 meter 1 0.1 0.6 4 (reader) / 0 (tag) Data rate 3 Mbps 1 Mbps 0.25 Mbps 0.4 Mbps Pairing speed Slow Fast (scalable) Fast (scalable) Fast Robustness High Excellent Low High Radio spec 2.4GHz Hopping 79 channel 2.4GHz Hopping 40 channel 2.4GHz No hopping 16 channel VHF, UHF No hopping Market Consumer Mobile phones, PCs, watches, sports & fitness, healthcare, automotive, home electronics and Slide 40 automation, etc Industrial Identification, service initiation, payment & ticketing
Anritsu MT8852B Option 27 A software option for MT8852B introduced through the Test System Recognition program This option covers the in-band Bluetooth low energy RF test cases The MT8852B Bluetooth low energy option does not require any instrument re-calibration and can be performed locally by existing instrument owners Slide 41
MT8852B-27 BLE test cases Transmitter tests (TRM) TRM/BV-01-C (Output power) TRM/BV-03-C (Modulation characteristics) TRM/BV-04-C (Initial carrier frequency offset and drift) Receiver tests (RCV) RCV/BV-01-C (Receiver sensitivity) RCV/BV-05-C (Maximum input signal level) Slide 42
Automatic Dual Mode LE device testing MT8852B can control the DUT using standardised HCI commands MT8852B can perform single tests or full test scripts automatically Slide 43
Testing LE devices without an HCI interface Some Bluetooth low energy devices will not have an HCI interface, or the interface may not be accessible Single Mode LE devices are typical examples These devices must be controlled by silicon vendors test control software for testing purposes DUT transmitter testing Silicon vendors software required to force device to transmit LE reference packets DUT receiver testing Silicon vendors software required to count number of received reference packets transmitted from MT8852B for PER calculation Slide 44
Viewing LE packets Supplied Bluetooth low energy PC application captures and displays LE packets on PC monitor Application also supports test scripts with results printing and saving to file Slide 45
PC application screen image Slide 46
MT8852B-23 EPC Enhanced Power Control Slide 47
Agenda 1. History of Bluetooth 2. Special Bluetooth measurements 3. BLE and EPC 4. Bluetooth high speed measurement Slide 48
Available already the Smart Phone Example, Nokia N95 has the following wireless technologies 3G/HSDPA mobile phone 3G 2.100GHz (HSDPA), EGSM 900MHz, GSM850/1800/1900 MHz (EGPRS) WiMAX Bluetooth EDR 2.4GHz 802.11b/g WLAN 2.4GHz GPS 1.575GHz receiver only FM radio traditional 88 to 108 MHz, receiver only Infrared Slide 49
Key applications Laptop network connection through public or private access point Surf the net in Starbucks New Applications Smart phones (VoIP) MP3 players, music download Multi-media phones Home entertainment/networks SoHo, wireless office Slide 50
Migration model for Bluetooth Many silicon developers now offer combo modules with Bluetooth and WLAN Why not use the WLAN radio to transfer Bluetooth data when a Bluetooth application requires high bandwidth? Issues Both Bluetooth and 802.11b/g WLAN use the same 2.4GHz frequency band The transmitter of either standard will saturate the receiver of the other;- a co-existence plan is essential It is not possible run WLAN and Bluetooth at the same time Time division multiplexing is required Slide 51
What does it mean for test? by MT8852B+MT8860C Developers will need to perform extensive coexistence testing Manufacturers will need test solutions that address multiple standards Pressure not to extend test times This will require parallel testing of radios in complex products Slide 52
Example use case today WLAN connection to access point Bluetooth SCO connection to headset Slide 53
Example use case in future Bluetooth/WLAN 12Mbps data connection to PC Bluetooth SCO connection to headset Slide 54
Co-existence requirements Bluetooth HV3 SCO connection requires 2 x 625s slots in 6 slot repetition cycle WLAN packets must slot in between Bluetooth packets Result is 12Mbps data rate for WLAN SCO Master SCO Slave Time available for WLAN packet Bluetooth 625s time slots Slide 55
Bluetooth AFH active WLAN & Bluetooth working status 11/25/2008 Slide 56
Bluetooth AFH active 11/25/2008 Slide 57
WiMedia UWB technology - 2 Each band is 528MHz wide 3 bands make a band group of ~1,500MHz BW Each 528MHz band consists of 122 sub carriers Each sub carrier individually modulated Modulations are Quadrature Phase Shift Keying (QPSK) Dual Carrier Modulation (DCM) Gross data rates from 53.3Mbps to 480Mbps 480Mbps 2 meters range 100Mbps 10 meters range Frequency hops after each symbol within a band group Symbol time 312.5ns Slide 58
Example application High speed printing of images from a phone or digital camera Print Application Standard 2.4 GHz radio Standard 2.4 GHz radio UWB 8GHz radio UWB 8GHz radio Phone Printer/PC Slide 59
Comparison of Bluetooth UWB with Bluetooth WLAN Bluetooth UWB Up to 480Mbps data rate Co-existence managed by frequency separation 1mWatt /Mbit/second Requires development of UWB radios at 8GHz Bluetooth WLAN Typically 12Mbps data rate, when used with Bluetooth Co-existence managed by time division multiplexing 10mWatt /Mbit/second Uses existing 802.11b/g radio technology Slide 60
Thank You 1.00 Slide 61