Mitigating excessive wakeups in leadless dual-chamber pacing systems and other imd systems

A method for managing wake-up operations in connection with communication between first and second IMDs, at least one of the first and second IMDs comprising first and second receivers, the method comprising:

• configuring the first receiver to selectively wakeup the second receiver, wherein the second receiver when awake consumes more power than the first receiver;
• receiving a message at the first receiver of the first IMD;
• examining the message to determine whether the message is a valid message from the second IMD or an invalid message;
• adjusting a value of a variable indicative of an extent of valid or invalid messages received during a time period;
• comparing the value to a threshold;
• and
• disabling a second receiver of the first IMD for a select time period based on the comparing of the value to the threshold parameter, to avoid excessive wakeups of the second receiver when the first and second IMDs are operating in a noisy environment.

An implantable medical device (IMD), comprising:

• first and second receivers;
• at least one battery configured to power the first and second receivers and other electronics of the IMD;
• and
• at least one of a processor or controller;
• the first receiver configured to selectively wakeup the second receiver;
• the second receiver, when awake, configured to consume more power than the first receiver;
• and
• the at least one of a processor or controller configured to:
• examine a message, received by the first receiver, to determine whether the message is valid or invalid;
• adjust a value of a variable indicative of an extent of valid or invalid messages received during a time period;
• compare the value to a threshold;
• and
• disable a second receiver for a select time period based on the comparison of the value to the threshold parameter, to avoid excessive wakeups of the second receiver in a noisy environment.