BLUETOOTH AND WLAN COEXISTENCE ARCHITECTURE HAVING A SHARED LOW NOISE AMPLIFIER

摘要

A radio frequency front-end includes a first path, second path, and third path each coupled between an antenna and a transceiver. The first path is configured to convey WLAN signals from the transceiver to the antenna for transmission. The second path is configured to convey received Bluetooth signals and received WLAN signals from the antenna to the transceiver. The third path is configured to convey Bluetooth signals from the transceiver to the antenna for transmission when a WLAN link is active and not in a power save state, and is configured to convey received Bluetooth signals from the antenna to the transceiver, and Bluetooth signals from the transceiver to the antenna for transmission, when the WLAN link is either inactive or in the power save state.

主权项

1. A radio frequency (RF) front-end comprising:
a first path coupled between an antenna and a transceiver, the first path configured to convey WLAN signals from the transceiver to the antenna for transmission; a second path coupled between the antenna and the transceiver, the second path configured to convey received Bluetooth signals and received WLAN signals from the antenna to the transceiver; and a third path coupled between the antenna and the transceiver, the third path configured to
convey Bluetooth signals from the transceiver to the antenna for transmission when a WLAN link is (i) active and (ii) not in a power save state, andconvey (a) received Bluetooth signals from the antenna to the transceiver, and (b) Bluetooth signals from the transceiver to the antenna for transmission, when the WLAN link is either (i) inactive or (ii) in the power save state.