Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Design Considerations and Applications for ULP] Date Submitted: [21 May, 2012] Source: [Kyung Kuk Lee] Company [Orthotron Co., Ltd] Address [709 Kranz Techno, 5442-1 Sangdaewon-dong, Sungnam-si, Kyungki-do, 462-729, Korea] Voice:[82-31-777-8198], FAX: [82-31-777-8199], E-Mail:[kyunglee@orthotron.com] Re: [Call for Application] Abstract: [This presentation examines design considerations and applications for ULP.] Purpose: [To support design optimum ULP transceiver architectures] Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Kyung-Kuk Lee (Orthotron)

2. E ETotal EANA EDIG Data-rate Which ULP PHY is Better ? • Consequences of Low on-Current Design - Data-speed: Low Data-rate - RTC (Active/Sleep): Low Duty-cycle (~ 1/100) - Low Tx Power: Shorter Coverage - Low Rx Sensitivity: Shorter Coverage - Simple PHY: Required High SNR  Shorter Coverage - Limited Choice for Transceiver Architecture • Consequences of Optimum on-Current Design - Data-speed: High Data-rate - RTC (Active/Sleep): Very Low Duty-cycle (~ 1/1000) - Allow moderate Tx Power: Longer Coverage - Allow High Rx Sensitivity: Longer Coverage - Optimum PHY: Required Low SNR  Longer Coverage - Variety of Choice for Optimum Transceiver Architecture RTC: Real-Time Clock Kyung-Kuk Lee (Orthotron)

3. UPL Design Consideration • SoC - MODEM: Clock Frequency / ADC-DAC Precision - Architecture: Low IF vs Baseband - Digital: Chip Area (Deep sub-Micron) vs Leakage Current - Event Driven Clocking Manager - Dual X-Tal: System Clock and RTC Clock - Optimum Data-rate: MODEM Speed vs RF/Analog on-Time - RF Blocks: Low-Power / Low-Leakage RF IP (AMP, LNA, PLL, Up-Down) • Module - Longer Batt. Life: Linear (LDO) vs SMPS - Power Switch (Optional): Reduce Leakage Current - Power Capacitor: Sufficient Capacity for on-Time Supply - RTC Synchronism LDO: Low Drop-Out, SMPS: Switching-Mode Power Supply Kyung-Kuk Lee (Orthotron)

4. Applications • Low Duty-Cycle Data - Sensor Data: Temperature, Pressure, Vibration, Day Light - Control: Light Dimmer, Temperature Control - Emergency: Fire Alarm, Security • Ranging - Short-Time Ranging (e.g. 1 msec per 10 sec) - Point-to-Point: Loss Protection of Child / Asset - Point-to-Multi Point: Group of Child / Asset Tracking - Multi-Hop: Tele-metering, Ad Hoc, Rescue People • Locating - Short-Time Locating (e.g. 1 ~ 4 msec per 10sec) - 2D/3D Locating: Distributed Sensors - Indoor Navigation, Theme Park, Safety Zone, Smart Energy Kyung-Kuk Lee (Orthotron)

5. Applications: Low Duty-Cycle Data Sensor / Control / Emergency Kyung-Kuk Lee (Orthotron)

6. Applications: Ranging RT-ToA Ranging Pre-School (Safety Zone) Ranging and Rescue Kyung-Kuk Lee (Orthotron)

7. Applications: Cooperative Locating Intelligent Mesh-Networking Kyung-Kuk Lee (Orthotron)

8. Applications: Locating (2D) TDoA based Locating RT-ToF based Locating (Paraboloid Crossing) (Circle Crossing) AP3 AP2 AP3 AP2 Tag Tag AP0 AP1 AP0 AP1 • TDoA: Time Difference of Arrival, RT-ToF: Round-Trip Time-of-Flight, AP: Access Point Kyung-Kuk Lee (Orthotron)

9. Applications: Locating (3D) Real-Time Locating System Kyung-Kuk Lee (Orthotron)

10. Applications: Locating with APs Real-Time Locating System • Emergency Call: E911 - People Locating: ID Tracking - Location Accuracy: < 2m Kyung-Kuk Lee (Orthotron)