Patent ID: 8655288

Claim:
An electronic device comprising: a mobile wireless communications device comprising a first housing, a spatial diversity wireless transceiver carried by said first housing, at least one first antenna carried by said first housing and coupled to said spatial diversity wireless transceiver, and an interface carried by said first housing and coupled to said spatial diversity wireless transceiver; and an external antenna device comprising a second housing, and at least one second antenna carried thereby and configured to be coupled to said spatial diversity wireless transceiver; said spatial diversity wireless transceiver configured to selectively operate said at least one first antenna and said at least one second antenna to provide spatial diversity; said interface configured to couple said spatial diversity wireless transceiver to said at least one second antenna and provide an audio headset connection; said mobile wireless communications device comprising a processor configured to operate said spatial diversity wireless transceiver in a first multiple-input/multiple-output (MIMO) rank mode when said at least one second antenna is not connected to said spatial diversity wireless transceiver, and operate said spatial diversity wireless transceiver in a second MIMO rank mode when said at least one second antenna is connected to said spatial diversity wireless transceiver, the second MIMO rank mode being greater than the first MIMO rank mode.