High-immunity wireless communication for battery management systems

US12425128B2 · kind B2 · utility

Assignee

• Analog Devices International Unlimited Company · IE

Inventors

• Lance Robert Doherty · San Leandro, US
• Mark Alan Lemkin · Berkeley, US
• Thor Juneau · Menlo Park, US
• Gary Wayne Ng · Campbell, US
• Cornelius O'Mahony · Limerick, IE
• Khaled Shawky Hassan · Laatzen, DE
• Justine Mary McCormack · Kinsale, IE
• Philip Eugene Quinlan · Glounthaune, IE

Key dates

• Filing date: Sep 13, 2023
• Grant date: Sep 23, 2025
• Expiry date: Jan 31, 2044

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W4/48
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Techniques to improve the immunity of wireless battery systems by transmitting heavily-coded signals, e.g., using multiple chips of a sequence for each bit of information, to trade data rate for interference or jamming immunity as a response once a noisy environment is identified. The techniques provide the system with a noise immunity operating mode (or high-immunity transmit and receive mode) that can improve resilience to interference or jamming by reducing the data rate. One option for reducing the data rate is by slowing down the transmission bit rate to reduce the occupied transmit bandwidth to minimize the probability of collisions with interfering signals. Another option is though digital coding methods using Forward Error Correction such as Convolutional Coding, Reed-Solomon Coding and Turbo coding. A third option is with RF spread spectrum techniques such as Direct Sequence Spread Spectrum (DSSS) or Frequency Hopped Spread Spectrum (FHSS).