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Antenna optimum beam forming for multiple protocol coexistence on a wireless device

  • US 8,238,832 B1
  • Filed: 08/27/2008
  • Issued: 08/07/2012
  • Est. Priority Date: 08/28/2007
  • Status: Active Grant
First Claim
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1. A method for a primary network device to communicate with a first remote wireless device and a second remote wireless device, the first network device having an antenna array, the method comprising:

  • identifying a first communication path for transmitting Bluetooth data between the primary network device and the first remote wireless device, including determining a first angle of arrival of a first signal communicated from the first remote wireless device to the primary network device along the first communication path;

    identifying a second communication path for transmitting wireless local area network (WLAN) data between the primary network device and the second remote wireless device, including determining a second angle of arrival of a second signal communicated from the second remote wireless device to the primary network device along the second communication path, wherein the first angle of arrival of the first signal communicated from the first remote wireless device is different than the second angle of arrival of the second signal communicated from the second remote wireless device;

    determining a first beam pattern for the antenna array for communicating the Bluetooth data along the first communication path, wherein the first beam pattern is to communicate, at a primary Bluetooth signal strength, the Bluetooth data in a direction corresponding to the first angle of arrival while minimizing any communication of the Bluetooth data at a suppressed Bluetooth signal strength in a direction corresponding to the second angle of arrival, wherein the suppressed Bluetooth signal strength is lower than the primary Bluetooth signal strength; and

    determining a second beam pattern for the antenna array for communicating WLAN data along the second communication path, wherein the second beam pattern is to communicate, at a primary WLAN signal strength, the WLAN data in the direction corresponding to the second angle of arrival while minimizing any communication of the WLAN data at a suppressed WLAN signal strength in the direction corresponding to the first angle of arrival, wherein the suppressed WLAN signal strength is lower than the primary WLAN signal strength.

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