×

Apparatus and method for improving WLAN spectrum efficiency and reducing interference by flow control

  • US 8,547,941 B2
  • Filed: 08/04/2009
  • Issued: 10/01/2013
  • Est. Priority Date: 04/16/2009
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for improving WLAN spectrum efficiency and reducing interference by flow control comprising:

  • determining if at least one data packet is entering a receive buffer;

    determining if the utilization of the receive buffer is greater than an overflow threshold in response to at least one data packet entering the receive buffer;

    determining if a wireless device is in power save mode when the utilization of the receive buffer is greater than the overflow threshold, wherein the wireless device comprises the receive buffer, a WLAN transceiver and a send buffer for storing packets from an interface module to the WLAN transceiver;

    determining if the send buffer is empty when the wireless device is not in the power save mode;

    setting a power management bit to “

    1”

    in either a top-most packet in the send buffer when the send buffer is not empty or a NULL packet when the send buffer is empty;

    using the WLAN transceiver for transmitting either the top-most packet or the NULL packet to an access point; and

    determining if the utilization of the receive buffer is greater than an underflow threshold in response to transmitting either the top-most packet or the NULL packet to the access point.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×