Methods and apparatus for antenna isolation-dependent coexistence in wireless systems

Wireless portable apparatus adapted for data communication over first and second air interfaces, the apparatus comprising:

• a first air interface having at least two antennae associated therewith;
• a second air interface having at least one antenna associated therewith, said first and second air interfaces operating in a substantially overlapping frequency band, said at least two antenna of said first air interface being disposed within said apparatus asymmetrically with respect to their isolations with said at least one antenna of said second air interface;
• a processor;
• and
• a storage device, said storage device comprising a computer program having a plurality of instructions that when executed:
• determine if a potential for interference between said first and second air interfaces exists;
• and
• if said potential exists, turning at least one of said at least two antennae off so as to mitigate said interference.

A method of operating a device having at least first and second air interfaces, the method comprising:

• communicating on the first air interface via a plurality of first antenna elements;
• communicating on the second air interface via at least one second antenna element;
• and
• wherein the first and second air interfaces are additionally coordinating activity information via a distinct communication channel;
• determining isolations between antennae pairs formed from the plurality of first antenna elements and the at least one second antenna element;
• evaluating whether the isolations are symmetric or asymmetric;
• and
• based at least in part on the evaluation, enabling a subset of the plurality of first antenna elements.

Wireless portable apparatus adapted for data communication over first and second air interfaces, the apparatus comprising:

• a first air interface having at least two antennae associated therewith;
• a second air interface having at least one antenna associated therewith, the first and second air interfaces operating in a substantially overlapping frequency band, the at least two antenna of the first air interface being disposed within the apparatus asymmetrically with respect to their isolations with the at least one antenna of the second air interface;
• a processor;
• and
• a storage device in data communication with the processor, the storage device comprising a computer program having a plurality of instructions that are configured to, when executed on the processor:
• determine when a potential for interference between the first and second air interfaces exists;
• and
• when the potential exists, turning at least one of the at least two antennae off so as to mitigate the interference.