Methods and apparatus for coexistence of wireless subsystems in a wireless communication device

A method to facilitate coexistence of a plurality of interconnected wireless subsystems in a wireless communication device that includes a processor, a first wireless subsystem, and a second wireless subsystem, the method comprising:

• at the processor:
• evaluating whether a first wireless subsystem configuration and a second wireless subsystem configuration indicates potential or actual coexistence interference between the first wireless subsystem and the second wireless subsystem;
• when the first and second wireless subsystem configurations indicate potential or actual coexistence interference between the first and second wireless subsystems:
• providing link quality reporting parameters to the first and second wireless subsystems;
• obtaining link quality reports for the first and second wireless subsystems;
• and
• when a link quality of the second wireless subsystem fails a set of link quality conditions, providing a request to the first wireless subsystem to adjust one or more settings of the first wireless subsystem configuration to mitigate interference with the second wireless subsystem.

A method to facilitate coexistence of a plurality of interconnected wireless subsystems in a wireless communication device, the method comprising:

• at a first wireless subsystem in the plurality of interconnected wireless subsystems:
• obtaining information of a configuration of a second wireless subsystem in the plurality of interconnected wireless subsystems;
• obtaining calibration information for a communication interface between the first and second wireless subsystems;
• configuring link quality reporting in accordance with parameters provided by a host processor in the wireless communication device;
• measuring link quality for radio frequency communications received by the first wireless subsystem;
• reporting link quality measurements to the host processor;
• obtaining a coexistence request from the host processor or from the second wireless subsystem;
• and
• in response to the coexistence request, adjusting one or more transmission parameters of the first wireless subsystem, the adjusting based at least in part on one or more of the measured link quality for radio frequency communications received by the first wireless subsystem and an operational state of the first wireless subsystem.