Silicon Laboratories, Inc. · NASDAQ:SLAB

Silicon Laboratories — Technical Presentation (2024)

38 slides from Silicon Laboratories's technical presentation, 2024

Slide 1: Presentation Will Begin Shortly
Presentation Will Begin Shortly 4:00 3:12 3:13 3:14 3:15 3:16 3:17 3:18 3:19 3:20 3:21 3:22 3:23 3:24 3:25 3:26 3:27 3:28 3:29 3:30 3:31 3:32 3:33 3:34 3:35 3:36 3:37 3:38 3:39 3:40 3:41 3:42 3:43 3:44 3:45 3:46 3:47 3:48 3:49 3:50 3:51 3:52 3:53 3:54 3:55 3:56 3:57 3:58 3:59 2:12 2:13 2:14 2:15 2:1
Slide 2: Welcome: Explore Bluetooth Channel Sounding
Welcome Explore Bluetooth Channel Sounding
Slide 3: Introduction
Introduction Priyanka Sukumar • Priyanka Sukumar is a Product Manager at Silicon Labs. She is responsible for Commercial Lighting, Clinical Medical, and Location segments within the Commercial Business Unit. She joined Silicon Labs in 2022 and is based out of the office in Finland. Before Silicon La
Slide 5: Overview
Overview
Slide 6: Channel Sounding Overview
Channel Sounding Overview ▪ Measure distance between two devices using • Phase-based Ranging (PBR) What’s included in the spec • Round Trip Time (RTT) ▪ RF and link layer timing and ▪ RTT and PBR operates across 2.4 GHz band functional requirements • Standard specifies up to 72 channels • Random hop
Slide 7: Channel Sounding setup between central and peripheral
Channel Sounding setup between central and peripheral LE ACL encryption start DRBG secret exchange for randomized bit streams Define all possible antenna configs and supported modes/submodes, supported PHYs, and more Defines antenna config, PHY, and who acts as initiator, with decisions based on cap
Slide 8: Channel Sounding Procedure -> Events -> Subevents -> Steps
Channel Sounding Procedure -> Events -> Subevents -> Steps Procedure Event Event Connection Anchor Point Subevent Subevent Subevent Subevent Subevent Subevent TFCS Step TFCS Step TFCS Step ▪ Procedures, composed of events, can span multiple connection intervals ▪ Subevents are required to complete w
Slide 9: Channel Sounding Step Modes
Channel Sounding Step Modes Mode-0: Calibration Mode-1: Round trip time ToF ▪ Compensates for clock drift and frequency offset ▪ Results in fractional frequency offset table TReflector Initiator Reflector TInitiator ToF ▪ CS SYNC packets exchanged between initiator and reflector Required Required Mo
Slide 10: Channel Sounding security features
Channel Sounding security features ▪ Potential vulnerabilities • Spoofing • Man in the middle (MITM) or relay attacks ▪ Deterministic random bit generator (DRBG) • Initialized during security start data exchange • Scrambles bit sequences between initiator and reflector • Randomizes payloads in tone
Slide 11: Bluetooth LE Location Services Comparison
Bluetooth® LE Location Services Comparison RSSI Angle of Arrival Channel Sounding Resolve distance between two Resolve distance estimation from Localization metric Resolve relative angle between two points points using time of flight and transmitter signal strength phase-based ranging Multi-antenna
Slide 12: Use cases
Use cases
Slide 13: Channel Sounding for Geo-Fencing Applications
Channel Sounding for Geo-Fencing Applications Unlock on Approach: • Remote Keyless Entry ▸ Zonal detection through ranging for secure vehicle access ▸ User enhancement with wake/welcome response • Proximity-based locking and unlocking ▸ Automatic door lock & unlock at a certain distance from it ▪ Lo
Slide 14: Channel Sounding in an Indoor Facility
Channel Sounding in an Indoor Facility Access Control Entry access • Restrict access to Authenticate and grant unauthorized personnel access to authorized workers • Send alerts to local when they approach the door servers/cloud if anyone dwells in the area for too long Asset management • Coarse loca
Slide 16: Channel Sounding for Static Device Positioning
Channel Sounding for Static Device Positioning ▪ Enables device positioning for static devices like luminaries or access points. ▪ The devices act as initiators and reflectors to calculate the distance from each other to create a geometric map. 16 ©2024 Silicon Laboratories Inc. All rights reserved.
Slide 18: Performance
Performance
Slide 19: Performance in Indoor Office Environment
Performance in Indoor Office Environment ▪ Ceiling rail infrastructure • Internal test environment • Multiple stationary EFR32 devices placed at different locations • Mobile EFR32 device for controlled measurements (repeatability) ▪ Challenges - heavy multi-path in an indoor office setting ▪ Statist
Slide 20: Indoor Performance Result – Line of Sight
Indoor Performance Result – Line of Sight PBR Distance Estimation 2.5 Median absolute error (m) 2 1.5 1 0.5 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Distance (m) 20 ©2024 Silicon Laboratories Inc. All rights reserv ed.
Slide 21: Indoor Performance Result – Non-Line of Sight
Indoor Performance Result – Non - Line of Sight Indoor Performance Result 2 1.5 1 Distance Error 0.5 0 -0.5 23Q4-GA NLOS 33.9 NLOS 14.84 NLOS 7.97 1 – 5 = NLOS 33.9m 1 – 4 = NLOS 14.84m H – 4 = NLOS 7.9m 21 ©2024 Silicon Laboratories Inc. All rights reserv ed.
Slide 22: Silicon Labs Offerings
Silicon Labs Offerings
Slide 23: BG24: Optimized for Battery Powered, Channel Sounding-enabled IoT Devices
BG24: Optimized for Battery Powered, Channel Sounding-enabled IoT Devices D IF F E R E N T IA T E D F E A T U R E S D E V IC E S P E C IF IC A T IO N S ▪ Ultra small form-factor ▪ High Performance Radio • 3.1 x 3.0 WLCSP package • Up to +19.5 dBm TX • -97.6 dBm RX @ BLE 1 Mbps ▪ +20 dBm output power
Slide 24: Dual antenna Channel Sounding board - front
Dual antenna Channel Sounding board - front 2x PCB antenna for antenna diversity and dual polarization 2x U.FL connector for optional external antenna support 1-to-2 RF switch On-board debugger for easy EFR32MG24B210F1536IM48-B programming and debugging our most capable xG24 part (with 1.5MB flash,
Slide 25: Dual antenna Channel Sounding board - back
Dual antenna Channel Sounding board - back 33x33mm overall size Mini Simplicity header for Wireless Main Board connectivity. Provides Advanced Energy Monitoring and Packet Trace Interface options. Qwiic connector for extendibility CR2032 for portability USB-C connector for easy PC connectivity. Prov
Slide 26: Visualizer Tool
Visualizer Tool Visualizer Tool displays realtime data • Channel sounding data with RSSI readings for comparison • Interfaces with Channel Sounding- enabled EVKs Upcoming features • Data logging • Confidence metric display • Channel map selection 26 ©2024 Silicon Laboratories Inc. All rights reserv
Slide 27: Silicon Labs Channel Sounding – Complete Offering
Silicon Labs Channel Sounding – Complete Offering Application API RTL Library GATT GAP SM ATT Bluetooth Link Layer D E V E L O P M E N T K IT S S TA C K S O F T W A R E D E V E L OPMENT TOOL S BRD4198A with Single Antenna In-house developed stack Real-time visualization tool Wireless Pro Kit Support
Slide 28: Call to Action!
Call to Action! GET EARLY ACCESS C O N TA C T U S LE A RN MORE Become a part of our ongoing Channel For any questions or to join our Early To learn more about Channel Sounding Sounding Early Access Program to get Access Program, please contact our and SiLabs offerings, please visit access to our dev
Slide 29: Q&A
Q&A
Slide 30: Thank you
Thank you (3) BLUETOOTH FEB 29™ | Small Bluetooth Devices - How to Minimize Size — ~ without Compromising Performance and Reliability MAY 9" | for tery Hanueting Soc Energy Harves' ov BLUETOOTH
Slide 31: Channel Sounding Procedure -> Events -> Subevents -> Steps
Channel Sounding Procedure -> Events -> Subevents -> Steps Procedure Event Event Connection Anchor Point Subevent Subevent Subevent Subevent Subevent Subevent TFCS Step TFCS Step TFCS Step ▪ Procedures, composed of events, can span multiple connection intervals ▪ Subevents are required to complete w
Slide 32: Channel Sounding antenna options
Channel Sounding antenna options Antenna Device A Device B Number of Configuration number of number of Antenna paths Index (ACI) antennas antennas (N_AP) 0 1 1 1 1 2 1 2 2 3 1 3 Example board supporting 2 antenna paths 3 4 1 4 ▪ Capabilities exchange indicates supported antenna 4 1 2 2 configuration
Slide 33: Example Channel Sounding Application With Multiple Anchors
Example Channel Sounding Application With Multiple Anchors ▪ Connectionless RSSI scan from all Ax anchors to find initial CS-connected anchor ▪ Coordinator connects Ax with highest RSSI to fob Central processor ▪ CS ranging with connected anchor • +/-.5m or better accuracy • Up to 10 Hz refresh rate
Slide 34: Theft Prevention + Vehicle Access
Theft Prevention + Vehicle Access ▪ Unlock on approach • Zonal detection through ranging for secure vehicle access • User enhancement with wake/welcome response ▪ Bluetooth LE connection established • Bluetooth LE connection for data channel • Channel Sounding ranging supported through connection ▪
Slide 38: Resources
Resources

Silicon Laboratories — Technical Presentation (2024) on 6ix

Silicon Laboratories — Technical Presentation (2024)

Slide 1: Presentation Will Begin Shortly

Slide 2: Welcome: Explore Bluetooth Channel Sounding

Slide 3: Introduction

Slide 4: Agenda

Slide 5: Overview

Slide 6: Channel Sounding Overview

Slide 7: Channel Sounding setup between central and peripheral

Slide 8: Channel Sounding Procedure -> Events -> Subevents -> Steps

Slide 9: Channel Sounding Step Modes

Slide 10: Channel Sounding security features

Slide 11: Bluetooth LE Location Services Comparison

Slide 12: Use cases

Slide 13: Channel Sounding for Geo-Fencing Applications

Slide 14: Channel Sounding in an Indoor Facility

Slide 15: Distance Measurement Demo

Slide 16: Channel Sounding for Static Device Positioning

Slide 17: Static Device Positioning Demo

Slide 18: Performance

Slide 19: Performance in Indoor Office Environment

Slide 20: Indoor Performance Result – Line of Sight

Slide 21: Indoor Performance Result – Non-Line of Sight

Slide 22: Silicon Labs Offerings

Slide 23: BG24: Optimized for Battery Powered, Channel Sounding-enabled IoT Devices

Slide 24: Dual antenna Channel Sounding board - front

Slide 25: Dual antenna Channel Sounding board - back

Slide 26: Visualizer Tool

Slide 27: Silicon Labs Channel Sounding – Complete Offering

Slide 28: Call to Action!

Slide 29: Q&A

Slide 30: Thank you

Slide 31: Channel Sounding Procedure -> Events -> Subevents -> Steps

Slide 32: Channel Sounding antenna options

Slide 33: Example Channel Sounding Application With Multiple Anchors

Slide 34: Theft Prevention + Vehicle Access

Slide 35: Silicon Labs NLOS 33.9m

Slide 36: Silicon Labs NLOS 14.84m

Slide 37: Silicon Labs NLOS 7.97m

Slide 38: Resources