Patents by Inventor Alok Aggarwal
Alok Aggarwal 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: 9137681Abstract: An appliance facilitates localization of a station (STA) in a network, for example, a short-range wireless network. An automatic response to a request for a measurement related communication is provided. The appliance can include a radio frequency (RF) interface and a media access control (MAC) section. The MAC section can receive the request and generate the automatic response immediately after a uniform period that is uniform among any such appliance within the network. The appliance performs only the generation of the automatic response, though the response can include additional information such as (x, y) coordinates of the appliance.Type: GrantFiled: January 28, 2013Date of Patent: September 15, 2015Assignee: QUALCOMM IncorporatedInventors: Saumitra Mohan Das, Alok Aggarwal, Ayman Fawzy Naguib, Edward Thomas Lingham Hardie
-
Patent number: 9125153Abstract: The subject matter disclosed herein relates to a system and method for wirelessly receiving a first communication from a first mobile device. A processing delay may be measured. An acknowledgement communication indicating receipt of the first communication may be generated. A measurement of the processing delay may be broadcast in a broadcast packet, for example, or by transmitting a subsequent communication including the processing delay in response to receiving a second communication having a request for the measurement of the processing delay.Type: GrantFiled: July 31, 2009Date of Patent: September 1, 2015Assignee: QUALCOMM IncorporatedInventors: Alok Aggarwal, Vinay Sridhara, Ayman Fawzy Naguib
-
Publication number: 20150230187Abstract: Techniques and apparatus for controlling the transmit power of an uplink (UL) signal from a user terminal in a wireless communications system in an effort to achieve some target characteristic, such as a target carrier-to-interference (C/I) ratio, at an access point (AP) are provided. In this manner, such a user terminal may help avoid or compensate for imbalances in received radio frequency (RF) power between UL signals received from multiple user terminals by the AP. For example, the transmit power at each user terminal may be controlled in an effort to achieve a target post-processing C/I ratio of 28 dB per spatial stream in an effort to reduce large power imbalances and optimize throughput per user terminal. The user terminal and the AP may compose part of a multiple-input multiple-output (MIMO) communication system utilizing spatial-division multiple access (SDMA) techniques.Type: ApplicationFiled: April 20, 2015Publication date: August 13, 2015Inventors: Hemanth SAMPATH, Didier Johannes Richard van Nee, Santosh Paul Abraham, Alok Aggarwal
-
Patent number: 9031044Abstract: Techniques and apparatus for controlling the transmit power of an uplink (UL) signal from a user terminal in a wireless communications system in an effort to achieve some target characteristic, such as a target carrier-to-interference (C/I) ratio, at an access point (AP) are provided. In this manner, such a user terminal may help avoid or compensate for imbalances in received radio frequency (RF) power between UL signals received from multiple user terminals by the AP. For example, the transmit power at each user terminal may be controlled in an effort to achieve a target post-processing C/I ratio of 28 dB per spatial stream in an effort to reduce large power imbalances and optimize throughput per user terminal. The user terminal and the AP may compose part of a multiple-input multiple-output (MIMO) communication system utilizing spatial-division multiple access (SDMA) techniques.Type: GrantFiled: January 13, 2009Date of Patent: May 12, 2015Assignee: QUALCOMM IncorporatedInventors: Hemanth Sampath, Richard van Nee, Santosh Abraham, Alok Aggarwal
-
Patent number: 9002349Abstract: Methods and apparatuses are directed to calibrating a misconfigured wireless access point. One method may include receiving a position of mobile station(s) and wireless signal model measurements derived from packets exchanged between the mobile station(s) and a plurality of wireless access points, receiving positions and/or identities of the plurality of wireless access points used in determining the position of the mobile station(s), comparing a position of the mobile station(s) with wireless signal model measurements, and identifying a misconfigured wireless access point based upon the comparing. Another method may include receiving positions associated with a plurality of wireless access points, determining a position of a mobile station based upon a wireless signal model, comparing the position of the mobile station and the wireless signal model with the positions associated with the plurality of wireless access points, and determining whether at least one wireless access point is misconfigured.Type: GrantFiled: September 13, 2013Date of Patent: April 7, 2015Assignee: QUALCOMM IncorporatedInventors: Ayman Fawzy Naguib, Alok Aggarwal, Jin Guo
-
Publication number: 20150045070Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses to allow for location related information for a region of space within a structure to be divided into blocks and selectively provided in an efficient manner to a mobile station and/or a proxy device associated therewith. The mobile station may, for example, use the blocks of location related information to support signal-based position estimation and/or other like location based services.Type: ApplicationFiled: October 27, 2014Publication date: February 12, 2015Inventors: Behrooz Khorashadi, Saumitra M. Das, Alok Aggarwal
-
Publication number: 20150031402Abstract: Apparatuses and methods for adjusting wireless-derived positions of a mobile station using a motion sensor are presented. One method includes estimating a position of a mobile station based upon wireless signal measurements and measuring a movement of the mobile station using a relative motion sensor. The method further includes detecting a displacement of the mobile station based upon the measured movement, determining that the displacement is below a threshold and then adjusting the estimated position of the mobile station using information from the relative motion sensor. An apparatus includes a wireless transceiver, a relative motion sensor, a processor coupled to the wireless transceiver and the relative motion sensor, and a memory coupled to the processor. The memory stores executable instructions and data for causing the processor to execute methods for adjusting wireless-derived positions using a motion sensor.Type: ApplicationFiled: October 15, 2014Publication date: January 29, 2015Inventors: Vinay Sridhara, Alok Aggarwal, Ayman Fawzy Naguib
-
Patent number: 8938211Abstract: The subject matter disclosed herein relates to utilizing location information, such as maps, in location determination based on Received Signal Strength Indication (RSSI) and Round-Trip Time (RTT) data. Weighting information can be determined from and/or provided in the location information. The weighting information associated with an area in which a mobile device is located can impact how RSSI and RTT data is weighted in a calculation of the mobile device's location.Type: GrantFiled: December 6, 2012Date of Patent: January 20, 2015Assignee: QUALCOMM IncorporatedInventors: Saumitra Mohan Das, Alok Aggarwal, Ayman Fawzy Naguib, Vinay Sridhara, Edward Thomas Lingham Hardie
-
Patent number: 8923215Abstract: An apparatus for communications including a processing system configured to generate a plurality of spatial streams for communicating with a plurality of nodes, the processing system being further capable of determining an allocation of the spatial streams to each of the nodes based on at least one metric for each of the nodes.Type: GrantFiled: February 25, 2010Date of Patent: December 30, 2014Assignee: QUALCOMM IncorporatedInventors: Sameer Vermani, Vinay Sridhara, Santosh P. Abraham, Alok Aggarwal
-
Patent number: 8892127Abstract: Apparatuses and methods for adjusting wireless-derived positions of a mobile station using a motion sensor are presented. One method includes estimating a position of a mobile station based upon wireless signal measurements and measuring a movement of the mobile station using a relative motion sensor. The method further includes detecting a displacement of the mobile station based upon the measured movement, determining that the displacement is below a threshold and then adjusting the estimated position of the mobile station using information from the relative motion sensor. An apparatus includes a wireless transceiver, a relative motion sensor, a processor coupled to the wireless transceiver and the relative motion sensor, and a memory coupled to the processor. The memory stores executable instructions and data for causing the processor to execute methods for adjusting wireless-derived positions using a motion sensor.Type: GrantFiled: November 19, 2009Date of Patent: November 18, 2014Assignee: QUALCOMM IncorporatedInventors: Vinay Sridhara, Alok Aggarwal, Ayman Fawzy Naguib
-
Patent number: 8880672Abstract: Methods, computer-readable media, and systems for modifying redistribution sets of users based on expiration time. A redistribution set including multiple present users to whom selected content is presentable for a pre-defined duration is received. Multiple past users who were included in the redistribution set have previously been removed from the redistribution set based on an expiration of the pre-defined duration. In response to detecting a modification to the pre-defined duration, the redistribution set of users is modified to include one or more past users or to exclude one or more present users. The redistribution set thus modified is used to target content to users in the modified redistribution set.Type: GrantFiled: November 1, 2011Date of Patent: November 4, 2014Assignee: Google Inc.Inventors: Dmytro Kuzmin, Zhengzhu Feng, Alok Aggarwal
-
Patent number: 8874131Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses to allow for location related information for a region of space within a structure to be divided into blocks and selectively provided in an efficient manner to a mobile station and/or a proxy device associated therewith. The mobile station may, for example, use the blocks of location related information to support signal-based position estimation and/or other like location based services.Type: GrantFiled: August 23, 2011Date of Patent: October 28, 2014Assignee: Qualcomm IncorporatedInventors: Behrooz Khorashadi, Saumitra M. Das, Alok Aggarwal
-
Patent number: 8831594Abstract: Methods and apparatuses are directed to calibrating a misconfigured wireless access point. One method may include receiving a position of mobile station(s) and wireless signal model measurements derived from packets exchanged between the mobile station(s) and a plurality of wireless access points, receiving positions and/or identities of the plurality of wireless access points used in determining the position of the mobile station(s), comparing a position of the mobile station(s) with wireless signal model measurements, and identifying a misconfigured wireless access point based upon the comparing. Another method may include receiving positions associated with a plurality of wireless access points, determining a position of a mobile station based upon a wireless signal model, comparing the position of the mobile station and the wireless signal model with the positions associated with the plurality of wireless access points, and determining whether at least one wireless access point is misconfigured.Type: GrantFiled: November 7, 2012Date of Patent: September 9, 2014Assignee: QUALCOMM IncorporatedInventors: Ayman Fawzy Naguib, Alok Aggarwal, Jin Guo
-
Patent number: 8825388Abstract: The subject matter disclosed herein may relate to methods, apparatuses, systems, devices or articles for generating or using an indoor likelihood heatmap, etc. For certain example implementations, a method for a device may comprise projecting multiple grid points over a schematic map of an indoor area, with the schematic map indicating multiple obstructions of the indoor area. Feasible paths between grid point pairs of the multiple grid points may be determined. For a particular grid point of the multiple grid points, a count of the feasible paths that traverse the particular grid point may be determined. A likelihood heatmap for use in one or more navigational applications may be generated based, at least in part, on the count. Other example implementations are described herein.Type: GrantFiled: July 11, 2011Date of Patent: September 2, 2014Assignee: QUALCOMM IncorporatedInventors: Behrooz Khorashadi, Rajarshi Gupta, Saumitra Mohan Das, Alok Aggarwal
-
Patent number: 8781492Abstract: An appliance facilitates localization of a station (STA) in a network, for example, a short-range wireless network. An automatic response to a request for a measurement related communication is provided. The appliance can include a radio frequency (RF) interface and a media access control (MAC) section. The MAC section can receive the request and generate the automatic response immediately after a uniform period that is uniform among any such appliance within the network. The appliance performs only the generation of the automatic response, though the response can include additional information such as (x, y) coordinates of the appliance.Type: GrantFiled: April 30, 2010Date of Patent: July 15, 2014Assignee: QUALCOMM IncorporatedInventors: Saumitra Mohan Das, Alok Aggarwal, Ayman Fawzy Naguib, Edward Thomas Lingham Hardie
-
Patent number: 8775065Abstract: The subject matter disclosed herein relates to systems, methods, apparatuses, devices, articles, and means for updating radio models. For certain example implementations, a method for one or more server devices may comprise receiving at one or more communication interfaces at least one measurement that corresponds to a position of a first mobile device within an indoor environment. At least one radio model that is stored in one or more memories may be updated based, at least in part, on the at least one measurement to produce at least one updated radio model. The at least one radio model and the at least one updated radio model may correspond to the indoor environment. The at least one updated radio model may be transmitted to enable a second mobile device to use the at least one updated radio model for positioning within the indoor environment. Other example implementations are described herein.Type: GrantFiled: April 1, 2011Date of Patent: July 8, 2014Assignee: QUALCOMM IncorporatedInventors: Rajarshi Gupta, Ayman Fawzy Naguib, Alok Aggarwal, Saumitra Mohan Das, Vinay Sridhara
-
Patent number: 8768344Abstract: Methods and apparatuses are directed to calibrating a misconfigured wireless access point. One method may include receiving a position of mobile station(s) and wireless signal model measurements derived from packets exchanged between the mobile station(s) and a plurality of wireless access points, receiving positions and/or identities of the plurality of wireless access points used in determining the position of the mobile station(s), comparing a position of the mobile station(s) with wireless signal model measurements, and identifying a misconfigured wireless access point based upon the comparing. Another method may include receiving positions associated with a plurality of wireless access points, determining a position of a mobile station based upon a wireless signal model, comparing the position of the mobile station and the wireless signal model with the positions associated with the plurality of wireless access points, and determining whether at least one wireless access point is misconfigured.Type: GrantFiled: December 21, 2009Date of Patent: July 1, 2014Assignee: Qualcomm IncorporatedInventors: Ayman Fawzy Naguib, Alok Aggarwal, Jin Guo
-
Patent number: 8750267Abstract: Apparatuses and methods for detecting falsified wireless access points are presented. A method includes identifying a target wireless access point for validation and measuring a round trip time delay to the wireless access point. The method also includes determining an expected processing delay of the wireless access point, analyzing the measured round trip time delay and the expected processing delay, and validating the wireless access point based upon the analysis. An apparatus includes a wireless transceiver, a processing unit coupled to the wireless transceiver, and a memory coupled to the processing unit. The processing unit is configured to identify a target wireless access point for validation, measure a round trip time delay to the wireless access point, determine an expected processing delay of the wireless access point, analyze the measured round trip time delay and the expected processing delay, and validate the wireless access point based upon the analysis.Type: GrantFiled: January 4, 2010Date of Patent: June 10, 2014Assignee: Qualcomm IncorporatedInventors: Alok Aggarwal, Edward Thomas Lingham Hardie, Saumitra Mohan Das, Rajarshi Gupta, Ayman Fawzy Naguib
-
Patent number: 8743863Abstract: Methods and apparatus for using code-division multiple access (CDMA) to transmit information via orthogonal frequency-division multiplexing (OFDM) to convey information from user terminals to an access point (AP) in a wireless local area network (WLAN) are provided. By using CDMA to convey information, a propagation delay between an access point (AP) and a user terminal may be determined by the AP, and timing adjustment information based on the delay may be sent to the user terminal. In this manner, subsequent uplink (UL) transmissions from multiple user terminals may be received simultaneously by the AP, despite the multiple user terminals having potentially different propagation delays.Type: GrantFiled: February 4, 2009Date of Patent: June 3, 2014Assignee: QUALCOMM IncorporatedInventors: Sameer Vermani, Hemanth Sampath, Alok Aggarwal, Simone Merlin
-
Patent number: 8744750Abstract: The subject matter disclosed herein relates to systems, methods, apparatuses, devices, articles, and means for updating radio models. For certain example implementations, a method for one or more server devices may comprise receiving at one or more communication interfaces at least one measurement that corresponds to a position of a first mobile device within an indoor environment. At least one radio model that is stored in one or more memories may be updated based, at least in part, on the at least one measurement to produce at least one updated radio model. The at least one radio model and the at least one updated radio model may correspond to the indoor environment. The at least one updated radio model may be transmitted to enable a second mobile device to use the at least one updated radio model for positioning within the indoor environment. Other example implementations are described herein.Type: GrantFiled: February 28, 2013Date of Patent: June 3, 2014Assignee: QUALCOMM IncorporatedInventors: Rajarshi Gupta, Ayman Fawzy Naguib, Alok Aggarwal, Saumitra Mohan Das, Vinay Sridhara