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BLUETOOTH AND WLAN COEXISTENCE ARCHITECTURE HAVING A SHARED LOW NOISE AMPLIFIER

  • US 20090239471A1
  • Filed: 03/17/2009
  • Published: 09/24/2009
  • Est. Priority Date: 03/18/2008
  • Status: Active Grant
First Claim
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1. A radio frequency (RF) front-end configured to share transmissions and receptions of Bluetooth signals and WLAN signals, the RF front-end comprising:

  • a first path coupled between an antenna and a transceiver dedicated to transmissions of the WLAN signals;

    a second path coupled between the antenna and the transceiver dedicated to simultaneous receptions of the Bluetooth signals and the WLAN signals; and

    a third path coupled between the antenna and the transceiver dedicated to;

    transmissions only of the Bluetooth signals when a WLAN link is active;

    andtransmissions and receptions of the Bluetooth signals when the WLAN link is active and in a power save state, and when the WLAN link is inactive.

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