Patent ID: 6978121
Filing Date: 2005-12-20
Classification: H04B

Abstract:
1. A method of operating a dual-mode radio (“DMR”) in a wireless communication system, wherein the DMR includes a Bluetooth™ (“BT”) radio, an 802.11 radio, a first antenna, a second antenna and an antenna/device switch, and wherein the antenna/device switch includes circuitry that selectively couples and decouples the antennas to the BT and 802.11 radios, the method comprising the acts of: (a) determining whether the 802.11 radio is transmitting; (b) if the 802.11 radio is transmitting data using a selected antenna, electrically isolating the Bluetooth™ radio from the selected antenna and returning to the act (a); (c) if the 802.11 radio is not transmitting data, determining whether the 802.11 radio is using the first antenna; (d) if the 802.11 radio is determined to be using the first antenna in act (c), selecting the second antenna for use by the Bluetooth™ radio and returning to the act (a); and (e) if the 802.11 radio is determined to not be using the first antenna in act (c), selecting the first antenna for use by the Bluetooth™ radio and returning to the act (a).