System and method for collision detection and mitigation with wake-up packets

A transmitting device (TD) adapted to perform collision detection, the transmitting device comprising:

• one or more processors;
• and
• a computer readable storage medium storing programming for execution by the one or more processors, the programming including instructions to configure the transmitting device to:
• identify one or more time periods of a signal generated by the TD, the one or more time periods corresponding to periods during which the TD will not transmit energy on a shared channel, and
• transmit a subset of the signal, wherein while a current time is within one of the one or more time periods, transmitting the subset of the signal comprises:
• turn off a transmitter of the TD at a beginning of the time period,
• detect energy received on the shared channel during a portion of the time period,
• turn on the transmitter of the TD before an end of the time period, and
• determine that the detected energy meets a collision threshold, and based thereon, determine that there is a transmission collision.

A method for collision detection by a transmission device (TD), the method comprising:

• identifying, by the TD, a time period of an On-off-keying (OOK) modulated signal generated by the TD, the time period corresponding to a period during which the TD will not transmit energy on a shared channel;
• transmitting, by the TD, the OOK modulated signal over the shared channel prior to the time period;
• turning off, by the TD, a transmitter of the TD at a beginning of the time period;
• detecting, by the TD, energy received on the shared channel during a portion of the time period;
• and
• determining, by the TD, that the detected energy meets a collision threshold, and based thereon, determining that the OOK modulated signal experienced a transmission collision.