Patents by Inventor Keshav Kishore Sahai

Keshav Kishore Sahai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10038995
    Abstract: Methods, systems, and devices are described for wireless communications. A communication device may utilize enhanced roaming techniques to use multiple channel maps for a high density AP environment. For instance, a communication device performs at least a partial channel scan by a communications device while the communications device is connected to an access point (AP) associated with a basic service set identifier (BSSID). The communication device further selects a channel map from a plurality of channel maps associated with the BSSID based at least in part on the partial scan, wherein each of the channel maps associated with the BSSID comprises a different set of signal strength measurements for a same set of neighboring APs. The communication device also uses the selected channel map as a basis for a roaming operation by the wireless device.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: July 31, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Srinivas Katar, Xiaolong Huang, Keshav Kishore Sahai, Farrukh Usmani, Hoon Ki Lee
  • Patent number: 9986492
    Abstract: Methods, systems, and devices are described for wireless communications. A communication device may utilize enhanced roaming techniques to dynamically adjust signal strength thresholds in a high density AP environment. For instance, a communication device determines a signal strength of a communication link between a wireless device and an access point (AP). The communication device further compares the signal strength value to at least a low threshold and a high threshold and performs a channel scan for the communication link when the signal strength value is below the low threshold. The communication device also adjusts the low threshold when the signal strength value is greater than the high threshold.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 29, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Srinivas Katar, Xiaolong Huang, Keshav Kishore Sahai, Farrukh Usmani, Hoon Ki Lee
  • Publication number: 20170064536
    Abstract: Methods, systems, and devices are described for wireless communications. A communication device may utilize enhanced roaming techniques to use multiple channel maps for a high density AP environment. For instance, a communication device performs at least a partial channel scan by a communications device while the communications device is connected to an access point (AP) associated with a basic service set identifier (BSSID). The communication device further selects a channel map from a plurality of channel maps associated with the BSSID based at least in part on the partial scan, wherein each of the channel maps associated with the BSSID comprises a different set of signal strength measurements for a same set of neighboring APs. The communication device also uses the selected channel map as a basis for a roaming operation by the wireless device.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 2, 2017
    Inventors: Srinivas Katar, Xiaolong Huang, Keshav Kishore Sahai, Farrukh Usmani, Hoon Ki Lee
  • Publication number: 20170064618
    Abstract: Methods, systems, and devices are described for wireless communications. A communication device may utilize enhanced roaming techniques to dynamically adjust signal strength thresholds in a high density AP environment. For instance, a communication device determines a signal strength of a communication link between a wireless device and an access point (AP). The communication device further compares the signal strength value to at least a low threshold and a high threshold and performs a channel scan for the communication link when the signal strength value is below the low threshold. The communication device also adjusts the low threshold when the signal strength value is greater than the high threshold.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 2, 2017
    Inventors: Srinivas Katar, Xiaolong Huang, Keshav Kishore Sahai, Farrukh Usmani, Hoon Ki Lee