US Patent 9374746 Systems/methods of spatial multiplexing

Responsive to a first orientation of a first device relative to a second device, a first element of a signaling alphabet is used to convey information to/from the first device while a second element of the signaling alphabet is precluded from usage to convey information to/from the first device while said second element is being used to convey information to/from the second device. Moreover, responsive to a second orientation of the first device relative to the second device, the first element and the second element of the signaling alphabet are used to convey information to/from the first device while said first and second elements are also being used to convey information to/from the second device. Systems/methods relating to smart antennas are also disclosed.