Patents by Inventor Lalit Yerramilli Raju
Lalit Yerramilli Raju 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).
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Patent number: 9648661Abstract: Techniques for performing WLAN system scanning and selection are described. A terminal performs multiple iterations of scan to detect for WLAN systems. A scan list containing at least one WLAN system to detect for is initially determined. For each scan iteration, a scan type may be selected from among the supported scan types. The selected scan type may indicate passive scan or active scan, frequency channels to scan, etc. A scan may be performed based on the selected scan type. Signal strength measurements are obtained for access points received during the scan and used to identify detected access points. After all scan iterations are completed, candidates access points are identified based on the scan results, e.g., based on the signal strength measurements for the detected access points and a detection threshold. The best candidate access point may be selected for association by the terminal.Type: GrantFiled: April 15, 2013Date of Patent: May 9, 2017Assignee: QUALCOMM IncorporatedInventors: Srinivasan Balasubramanian, Anup Kuzhiyil, Amit Gil, Lalit Yerramilli Raju, Luiza Timariu, Saravana Krishnan Kannan
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Patent number: 9351320Abstract: Techniques for avoiding collision of traffic in a wireless network are described. A station detects for synchronization of its traffic with traffic of other stations. The station may detect for synchronization based on, e.g., percentage of first transmission failures, counters indicative of statistics of transmitted frames, and/or other information. The station may confirm synchronization of its traffic, e.g., by monitoring for traffic from another station during a service period for the station. The station adjusts transmission of its traffic when synchronization is detected to avoid collision with the traffic of the other stations. The station may delay transmission of its traffic by a predetermined amount of time, by a pseudo-random amount, or until after the other stations finish their transmissions.Type: GrantFiled: October 31, 2014Date of Patent: May 24, 2016Assignee: QUALCOMM IncorporatedInventors: Arnaud Meylan, Shravan K. Surineni, Lalit Yerramilli Raju
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Publication number: 20150049752Abstract: Techniques for avoiding collision of traffic in a wireless network are described. A station detects for synchronization of its traffic with traffic of other stations. The station may detect for synchronization based on, e.g., percentage of first transmission failures, counters indicative of statistics of transmitted frames, and/or other information. The station may confirm synchronization of its traffic, e.g., by monitoring for traffic from another station during a service period for the station. The station adjusts transmission of its traffic when synchronization is detected to avoid collision with the traffic of the other stations. The station may delay transmission of its traffic by a predetermined amount of time, by a pseudo-random amount, or until after the other stations finish their transmissions.Type: ApplicationFiled: October 31, 2014Publication date: February 19, 2015Inventors: Arnaud Meylan, Shravan K. Surineni, Lalit Yerramilli Raju
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Publication number: 20130235861Abstract: Techniques for performing WLAN system scanning and selection are described. A terminal performs multiple iterations of scan to detect for WLAN systems. A scan list containing at least one WLAN system to detect for is initially determined For each scan iteration, a scan type may be selected from among the supported scan types. The selected scan type may indicate passive scan or active scan, frequency channels to scan, etc. A scan may be performed based on the selected scan type. Signal strength measurements are obtained for access points received during the scan and used to identify detected access points. After all scan iterations are completed, candidates access points are identified based on the scan results, e.g., based on the signal strength measurements for the detected access points and a detection threshold.Type: ApplicationFiled: April 15, 2013Publication date: September 12, 2013Applicant: QUALCOMM IncorporatedInventors: Srinivasan Balasubramanian, Anup Kuzhiyil, Amit Gil, Lalit Yerramilli Raju, Luiza Timariu, Saravana Krishnan Kannan
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Patent number: 8477715Abstract: Techniques for performing IP configuration after handoff in a WLAN are described. A station associates with a first access point in the WLAN and performs IP configuration to obtain a first set of IP configuration parameters. The station thereafter exchanges data via the first access point using the first set of IP configuration parameters. The station performs handoff from the first access point to a second access point and performs IP configuration after the handoff. While the IP configuration is in progress, the station continues to exchange data via the second access point using the first set of IP configuration parameters. This avoids interruption in IP connectivity. After completing the IP configuration, the station either (i) continues to exchange data using the first set of IP configuration parameters if new parameters are not obtained or (ii) exchanges data using a second set of IP configuration parameters if obtained.Type: GrantFiled: July 18, 2007Date of Patent: July 2, 2013Assignee: QUALCOMM IncorporatedInventors: Henri Dagbegnon Bahini, Amit Gil, Lalit Yerramilli Raju, Anup Kuzhiyil
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Patent number: 8467784Abstract: Techniques for performing WLAN system scanning and selection are described. A terminal performs multiple iterations of scan to detect for WLAN systems. A scan list containing at least one WLAN system to detect for is initially determined. For each scan iteration, a scan type may be selected from among the supported scan types. The selected scan type may indicate passive scan or active scan, frequency channels to scan, etc. A scan may be performed based on the selected scan type. Signal strength measurements are obtained for access points received during the scan and used to identify detected access points. After all scan iterations are completed, candidates access points are identified based on the scan results, e.g., based on the signal strength measurements for the detected access points and a detection threshold. The best candidate access point may be selected for association by the terminal.Type: GrantFiled: March 30, 2007Date of Patent: June 18, 2013Assignee: QUALCOMM IncorporatedInventors: Srinivasan Balasubramanian, Anup Kuzhiyil, Amit Gil, Lalit Yerramilli Raju, Luiza Timariu, Saravana Krishnan Kannan
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Publication number: 20120226827Abstract: The subject matter disclosed herein relates to systems and/or devices capable of transmitting data packets over a hardware command interface. In one particular example, multiple data packets may be transmitted between a host device and a peripheral device in a single hardware interface command.Type: ApplicationFiled: March 2, 2011Publication date: September 6, 2012Applicant: QUALCOMM IncorporatedInventors: Lalit Yerramilli Raju, Dagbegnon Henri Bahini, Hok Y. Cheung, Neelay Das
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Patent number: 8223729Abstract: Techniques for selecting a radio interface for an application are described. A terminal identifies locally-addressable and globally-addressable wireless networks among wireless networks available to the terminal. Radio interfaces supported by the terminal may be prioritized based on the locally-addressable and globally-addressable wireless networks, information obtained for the application, the application type, etc. Different applications may have different radio interface preferences or requirements, which may be considered in prioritizing the radio interfaces. A suitable radio interface may be selected for the application based on the prioritized radio interfaces. WLAN interface may be selected for the application if (a) the WLAN interface is preferred and any WLAN is acceptable to the application or (b) a globally-addressable WLAN is available. A WLAN interface may be selected for the application if a globally-addressable WLAN is not available.Type: GrantFiled: April 19, 2007Date of Patent: July 17, 2012Assignee: QUALCOMM IncorporatedInventors: Lalit Yerramilli Raju, Amit Gil, Henri Bahini Dagbegnon, Anup Kuzhiyil
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Patent number: 7899018Abstract: A wireless device is configured to automatically resign from an ad hoc network. In some aspects the resignation may be based on automatic detection of inactivity associated with the ad hoc network. For example, resignation from the ad hoc network may be based on absence of uplink and downlink traffic at a wireless device, absence of open sockets at a wireless device, or a lack of beacon transmissions by other wireless devices. In the latter case, a lack of beacon transmissions by other wireless devices in the ad hoc network may be indicated by the transmission of a relatively large number of beacons in succession by a wireless device.Type: GrantFiled: September 20, 2007Date of Patent: March 1, 2011Assignee: Qualcomm IncorporatedInventors: Srinivasan Balasubramanian, Lalit Yerramilli Raju, Manoj M. Deshpande
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Publication number: 20080075054Abstract: A wireless device is configured to automatically resign from an ad hoc network. In some aspects the resignation may be based on automatic detection of inactivity associated with the ad hoc network. For example, resignation from the ad hoc network may be based on absence of uplink and downlink traffic at a wireless device, absence of open sockets at a wireless device, or a lack of beacon transmissions by other wireless devices. In the latter case, a lack of beacon transmissions by other wireless devices in the ad hoc network may be indicated by the transmission of a relatively large number of beacons in succession by a wireless device.Type: ApplicationFiled: September 20, 2007Publication date: March 27, 2008Applicant: QUALCOMM INCORPORATEDInventors: SRINIVASAN BALASUBRAMANIAN, LALIT YERRAMILLI RAJU, MANOJ M. DESHPANDE
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Publication number: 20080019339Abstract: Techniques for selecting a radio interface for an application are described. A terminal identifies locally-addressable and globally-addressable wireless networks among wireless networks available to the terminal. Radio interfaces supported by the terminal may be prioritized based on the locally-addressable and globally-addressable wireless networks, information obtained for the application, the application type, etc. Different applications may have different radio interface preferences or requirements, which may be considered in prioritizing the radio interfaces. A suitable radio interface may be selected for the application based on the prioritized radio interfaces. WLAN interface may be selected for the application if (a) the WLAN interface is preferred and any WLAN is acceptable to the application or (b) a globally-addressable WLAN is available. A WLAN interface may be selected for the application if a globally-addressable WLAN is not available.Type: ApplicationFiled: April 19, 2007Publication date: January 24, 2008Inventors: Lalit Yerramilli Raju, Amit Gil, Henri Bahini Dagbegnon, Anup Kuzhiyil
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Publication number: 20080014934Abstract: Techniques for performing WLAN system scanning and selection are described. A terminal performs multiple iterations of scan to detect for WLAN systems. A scan list containing at least one WLAN system to detect for is initially determined. For each scan iteration, a scan type may be selected from among the supported scan types. The selected scan type may indicate passive scan or active scan, frequency channels to scan, etc. A scan may be performed based on the selected scan type. Signal strength measurements are obtained for access points received during the scan and used to identify detected access points. After all scan iterations are completed, candidates access points are identified based on the scan results, e.g., based on the signal strength measurements for the detected access points and a detection threshold. The best candidate access point may be selected for association by the terminal.Type: ApplicationFiled: March 30, 2007Publication date: January 17, 2008Inventors: Srinivasan Balasubramanian, Anup Kuzhiyil, Amit Gil, Lalit Yerramilli Raju, Luiza Timariu, Saravana Krishnan Kannan