Event coordination in an electronic device to reduce current drain

A method of coordinating events in a microprocessor-based communication device having a sleep mode, the method comprising the steps of:

• providing an operating system timer to time operating system event times;
• determining a list of event times to perform associated operating system events that require exiting sleep mode and entering a wake-up period to perform the event tasks;
• defining accuracy values for each associated operating system event times, where the accuracy values define an acceptable delay to apply in the delaying step;
• establishing a timing of communication events wherein the communication device exits the sleep mode and enters a wake-up period to perform the communication events;
• and
• delaying the event time for at least one of the operating system events to align with a communication event such that the communication device utilizes one wake-up period to perform both of the at least one of the operating system event and the communication event.

A method of coordinating events in a microprocessor-based communication device having a sleep mode, the method comprising the steps of:

• providing an operating system timer to time operating system event times;
• determining a list of event times to perform associated operating system events that require exiting sleep mode and entering a wake-up period to perform the event tasks;
• defining accuracy values for each associated operating system event time, where the accuracy values define an acceptable delay to apply in the delaying step;
• establishing a timing of communication events wherein the communication device exits the sleep mode and enters a wake-up period to perform the communication events;
• and
• detemining if any of the event times are set to occur before the next communication event;
• adding, for those event times of the previous step, the event times plus their associated accuracy values to provide delayed event times;
• calculating which of the operating system delayed event times occur earliest in time;
• and
• setting a wake-up period for the operating system at the delayed event time of the previous step such that the communication device utilizes one wake-up period to perform both of the at least one of the operating system event and the communication event.