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Local area network radar
Local area network radar






local area network radar

The description and representation herein are the common means used by those experienced or skilled in the art to most effectively convey the substance of their work to others skilled in the art. However, it will be apparent to those skilled in the art that the disclosure, including structures, systems, and methods, may be practiced without these specific details. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the disclosure. The drawing in which an element first appears is typically indicated by the leftmost digit(s) in the corresponding reference number. The present disclosure will be described with reference to the accompanying drawings. 4 illustrates a flowchart depicting WLAN channel change in accordance with embodiments of the present disclosure. 3 illustrates a radio frequency (RF) transceiver utilized in the WLAN subscriber device in accordance with embodiments of the present disclosure.įIG. 2 illustrates a WLAN subscriber device in accordance with embodiments of the present disclosure.įIG. 1 illustrates a WLAN environment according to embodiments of the disclosure.įIG. The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate the present disclosure and, together with the description, further serve to explain the principles of the disclosure and to enable a person skilled in the pertinent art to make and use the disclosure.įIG. BRIEF DESCRIPTION OF THE DRAWINGS/FIGURES Although DFS allows these channels allocated to radar devices to be used by WLAN modems when available, one of the main drawbacks of DFS is that that the WLAN modem has to stop transmitting/receiving data traffic for the minimum listening time. If no radar signals are detected within the minimum listening time, the WLAN modem can begin to transmit over the channel. If radar signals are detected within the minimum listening time, the WLAN modem is to vacate the channel and select a different channel to transmit over. Under DFS, a WLAN modem is to listen for some minimum listening time, such as 60 seconds, for signals from a radar source on a channel allocated to radar devices before transmitting over the channel. Therefore, in order to use the portions of the 5 GHz band that are allocated to radar devices, WLAN modems are required to comply with Dynamic Frequency Selection (DFS), which is outlined in the 802.11 standards. These radar devices, such as military and weather radar, have priority over WLAN modems. In particular, portions of the 5 GHz band have been allocated to radar devices in most countries. The 5 GHz band can offer less congestion, but comes with its own set of issues. As a result, the 2.4 GHz band is also typically the most congested band. Currently, the 2.4 GHz band is the most commonly used band by WLAN modems. “WLAN” can also be referred to as “WiFi.” WLAN technology is any WLAN product based on one of the Institute of Electrical and Electronics Engineers' (IEEE) 802.11 standards, which operate in the 900 MHz and 2.4, 3.6, 5, and 60 GHz frequency bands. BACKGROUNDĮlectronic devices, such as personal computers, laptops, tablets, and smartphones, often implement wireless local area network (WLAN) technology to wirelessly communicate data using a corresponding WLAN(s). This application relates generally to dynamic frequency selection (DFS), including DFS for wireless local area network (WLAN) devices. 21, 2015, which is incorporated herein by reference in its entirety. This application claims the benefit of U.S.








Local area network radar