Patents by Inventor Soumya Das

Soumya Das 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: 9332509
    Abstract: Methods, systems, and devices are provided that may address problems pertaining to effective transmit power control of a communications device operating in a wireless communications system. Some embodiments utilize mechanisms or techniques with dynamically adaptive steps sizes for transmit power control based on one or more trends. Some of these techniques may identify a trend in the transmit power control (TPC) commands and may adapt a TPC step size as a result. Other techniques may be utilized in which transmit power control is based on multiple interference estimates in a frame slot. Having multiple interference estimates at sub-slot intervals may provide additional transmit power control by allowing more transmit power adjustments, or more appropriate adjustments, for each slot. Metric calculations may be performed on one or more techniques to determine appropriate TPC operations.
    Type: Grant
    Filed: February 10, 2013
    Date of Patent: May 3, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Samir Salib Soliman, Ozgur Dural, Soumya Das, Edwin C. Park, Roy Franklin Quick, Jr.
  • Publication number: 20160119797
    Abstract: A UE may use a same antenna for both Bluetooth communications and WWAN cell search and measurement operations. In order to avoid interference, the UE may adjust the periodicity of the WWAN cell search and measurement operations. Adjustment of the WWAN cell search and measurement periodicity may be based on a link quality of the Bluetooth communications.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 28, 2016
    Inventors: Soumya Das, Nitinkumar Barot
  • Patent number: 9307424
    Abstract: An apparatus for wireless communication obtains a first metric of a cell based on signals received by a WWAN radio tuned to a common frequency, and a second metric of the cell based on signals received by a WLAN radio tuned to the common frequency. The apparatus determines a calibration factor based on the first and second metrics, and performs cell search and cell measurement based on the calibration factor and signals received by the WLAN radio tuned to a target frequency. The common frequency may be a serving frequency of the WWAN, in which case the first and second metrics are one of frequency or power metrics and the calibration factor is one of a frequency offset and a power offset. The common frequency may also be a target frequency for inter-frequency measurements of the WWAN, in which case the calibration factor is based primarily on power measurements.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: April 5, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Ozgur Dural, Kaushik Chakraborty, Soumya Das, Bongyong Song, Samir Salib Soliman
  • Publication number: 20160073399
    Abstract: A time period associated with each of a plurality of tasks included in a current instance of WWAN data capture/processing by a WLAN processor and a WWAN processor is determined. A total time period comprising the respective time periods of each task is compared to an overall time budget criterion to obtain a comparison outcome. A change in at least one of the tasks based on the comparison outcome is implemented. The change results in an adjustment of the total time period associated with a next instance of WWAN data capture/processing by the WLAN processor and the WWAN processor.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 10, 2016
    Inventors: Ozgur DURAL, Kaushik CHAKRABORTY, Soumya DAS, Olufunmilola AWONIYI-OTERI, Won-ick LEE
  • Patent number: 9271306
    Abstract: Methods, systems, and devices are described for control information processing and utilization in a wireless communications system that utilizes one or more flexible bandwidth carriers. The methods may include receiving control information over a first channel of one of the one or more flexible bandwidth carriers, determining a processing time for the received control information over the first channel of the one of the one or more flexible bandwidth carriers based on a processing time of control information for another bandwidth carrier, and utilizing the received control information over the first channel of the one of the one or more flexible bandwidth carriers during a first transmission time interval of the first channel of the one of the one or more flexible bandwidth carriers subsequent to the processing time for the received control information over the first channel of the one of the one or more flexible bandwidth carriers.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: February 23, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Ozgur Dural, Soumya Das, Edwin Chongwoo Park
  • Patent number: 9220101
    Abstract: Methods, systems, and devices for separating signaling data and traffic data onto separate carriers for wireless communications systems are provided. Some embodiments utilize flexible bandwidth that may utilize portions of spectrum that may not be big enough to fit a normal waveform through utilizing flexible waveforms. Flexible bandwidth systems may lead to reduced data rate on the signaling or other channels. Separating the signaling and the data traffic into different flexible bandwidth carriers so that assigned resources can be customized to different traffic patterns may address this issue. In some embodiments, the signaling data is received and/or transmitted over a first carrier separate from any other traffic data. For example, the signaling data may be received and/or transmitted over the first band carrier without any other traffic data. The traffic data and/or network data associated with the signaling data may be received and/or transmitted over a separate, second carrier.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: December 22, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Olufunmilola O. Awoniyi, Samir Salib Soliman, Bongyong Song, Soumya Das, Edwin C. Park
  • Publication number: 20150358840
    Abstract: A plurality of data samples are captured during a single capture period using a WLAN receive chain, wherein the data samples include a signal of interest periodically transmitted by a WWAN. A preferred LNA gain state is selected from among a plurality of available LNA gain states for the WLAN receive chain. The plurality of gain states may be a discrete set of LNA gain states or may be a set of LNA gain states derived from energy measurements. The LNA gain state of the WLAN receive chain is set to the selected LNA gain state and data samples are captured during each of a plurality of contiguous capture ticks within a capture period. The captured data samples are processed to detect for the signal of interest.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 10, 2015
    Inventors: Ozgur DURAL, Soumya DAS, Olufunmilola O. AWONIYI-OTERI, Kaushik CHAKRABORTY
  • Publication number: 20150358928
    Abstract: Data samples of a signal transmitted by a WWAN are captured during a first set of capture ticks for a first capture period defined by a plurality of contiguous ticks. The first set of capture ticks comprises a first subset of the plurality of contiguous ticks, and the capturing is done using a WLAN receive chain having a switchable LNA gain state. The capturing of data samples is repeated for at least one additional capture period defined by a plurality of contiguous ticks to capture data samples during at least one additional set of capture ticks comprising an additional subset of the plurality of contiguous ticks for which data samples were not previously captured. The LNA gain state of the WLAN receive chain is switched at least once over the plurality of capture periods. Gain state switching may occur a capture period, or between capture periods.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 10, 2015
    Inventors: Ozgur DURAL, Soumya DAS, Olufunmilola O. AWONIYI-OTERI, Kaushik CHAKRABORTY
  • Publication number: 20150341858
    Abstract: Apparatus, methods, and computer program products providing power savings in Semi-Persistent Scheduling (SPS)-configured Voice over Long Term Evolution (VoLTE) with Connected State Discontinuous Reception (C-DRX) are provided. The apparatus may be a user equipment (UE). The UE receives a packet when the UE is in a persistent scheduling mode. The UE transmits a negative-acknowledgement (NACK) message when the packet is not successfully decoded. The UE refrains from transmitting an acknowledgement (ACK) message when the packet is successfully decoded. The UE may enter a power save state immediately after the packet is successfully decoded. The packet may be addressed to the UE in a unicast message. The packet may be received during an on-duration of a C-DRX cycle. The packet my include VoLTE downlink (DL) traffic. The packet may be received on a physical downlink shared channel (PDSCH).
    Type: Application
    Filed: May 21, 2014
    Publication date: November 26, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Insoo Hwang, Bongyong Song, Soumya Das, Ajay Gupta
  • Publication number: 20150341832
    Abstract: Methods, systems, and devices are described for mobility robustness optimization. A network may be organized into base station clusters, and mobility information may be exchanged within the cluster. Each base station may then receive statistics based on the collected information. In some examples the cluster mobility statistics are used to generate a handover transition matrix identifying a probability of a UE remaining with a target base station within the cluster for a threshold period following a handover from a source base station that is also within the cluster. Based on the cluster mobility statistics, the base station may determine that the probability of the UE remaining with the potential target base station for the threshold period is low. The base station may then select an alternative handover target. The base station may then adjust the mobility parameters of the UE in order to direct it to the alternative handover target.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 26, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Insoo Hwang, Soumya Das, Samel Celebi, Bongyong Song
  • Patent number: 9198092
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The method and apparatus resolve issues related to voice and data handovers between micro cells, femto cells and other small cells, and to handovers from macro cells to small cells are becoming increasingly significant as small cells are more widely deployed. In order to handoff a call associated with a user equipment, a base station attempts to identify neighboring cells that are within communication range of the user equipment based on a primary scrambling code and delays between multiple transmissions of the PSC detected by the user equipment and reported to the base station by the user equipment.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: November 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Samir Salib Soliman, Soumya Das
  • Publication number: 20150327043
    Abstract: In a network node, wireless device, or both, a method for controlling activation or deactivation of a small cell activity of a portable multi-purpose wireless device in a wireless communications network may include determining a geographic location of a portable multi-purpose wireless device. The device may be capable of two or more different states of small cell activity, including an activated state, a deactivated state, or a latent state. The method may include controlling a current one of the two or more different states of the small-cell capability of the portable multi-purpose wireless device, based at least in part on the geographic location. The network node, the wireless device, or both may activate or deactivate the small cell activity, or place it into a latent state, based on additional factors. In addition to its small cell capabilities, the wireless device may perform user function unrelated to the wireless network.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 12, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Soumya Das, Edwin Chongwoo Park, Bongyong Song
  • Publication number: 20150312787
    Abstract: A user equipment (UE) provides a capability-type indication for each of one or more UE capabilities. Each indication corresponds to a capability type, the type being one of a persistent capability or a second-type capability. Information corresponding to the capability-type indication may be provided to an eNB associated with the UE by RRC signaling. The UE provides a capability-change indication for each of one or more UE capabilities that has changed capability type. Information corresponding to the capability-change indication may be provided to an eNB by lower layer signaling, RRC signaling, or a combination thereof. Capability change information may be sent to the eNB autonomously by the UE, or in response to an inquiry from the eNB. The inquiry from the eNB may be triggered by the UE.
    Type: Application
    Filed: April 29, 2014
    Publication date: October 29, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Soumya DAS, Bongyong SONG
  • Publication number: 20150296468
    Abstract: An apparatus for capturing a signal of interest, e.g., PSS and/or SSS, captures data transmitted by a WWAN for each of a plurality of communication frames. The data is captured for a capture length corresponding to a duration less than a periodicity of transmission of the signal of interest. Data is captured with a WLAN receive chain, and each capture occurs at a different point within its respective communication frame relative to other communication frames. The apparatus processes the plurality of data captures to form an equivalent continuous data corresponding to a duration greater than the periodicity of transmission. Because the continuous data has a duration greater than the periodicity of transmission of the signal of interest, the signal of interest is contained in the captured data, and PSS and/or SSS can be detected.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 15, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Ozgur DURAL, Soumya DAS
  • Publication number: 20150296397
    Abstract: An apparatus for capturing a signal of interest, e.g., PSS and/or SSS, captures data transmitted by a WWAN by obtaining access to a WLAN receive chain for a period of time corresponding to a measurement gap. The signal of interest transmitted by the WWAN is captured during the measurement gap using the WLAN receive chain. Access to a WLAN receive chain may be obtained in any one of several ways. For example, access may be obtained by 1) requesting WLAN receive chain access for LTE measurements through a virtual flow, 2) entering into a power save mode, 3) tuning to a non-operating WLAN channel, 4) setting network allocation vector (NAV) at or above a threshold value, or 5) entering a measurement mode during which the WLAN receive chain is prevented from performing WLAN operations.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 15, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Ozgur DURAL, Soumya DAS
  • Publication number: 20150257016
    Abstract: An apparatus for wireless communication obtains a first metric of a cell based on signals received by a WWAN radio tuned to a common frequency, and a second metric of the cell based on signals received by a WLAN radio tuned to the common frequency. The apparatus determines a calibration factor based on the first and second metrics, and performs cell search and cell measurement based on the calibration factor and signals received by the WLAN radio tuned to a target frequency. The common frequency may be a serving frequency of the WWAN, in which case the first and second metrics are one of frequency or power metrics and the calibration factor is one of a frequency offset and a power offset. The common frequency may also be a target frequency for inter-frequency measurements of the WWAN, in which case the calibration factor is based primarily on power measurements.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 10, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Ozgur DURAL, Kaushik CHAKRABORTY, Soumya DAS, Bongyong SONG, Samir Salib SOLIMAN
  • Publication number: 20150257020
    Abstract: An apparatus for wireless communication obtains a first metric of a cell based on signals received by a WWAN radio tuned to a common frequency, and a second metric of the cell based on signals received by a WLAN radio tuned to the common frequency. The apparatus determines a calibration factor based on the first and second metrics, and performs cell search and cell measurement based on the calibration factor and signals received by the WLAN radio tuned to a target frequency. The common frequency may be a serving frequency of the WWAN, in which case the first and second metrics are one of frequency or power metrics and the calibration factor is one of a frequency offset and a power offset. The common frequency may also be a target frequency for inter-frequency measurements of the WWAN, in which case the calibration factor is based primarily on power measurements.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 10, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Ozgur DURAL, Kaushik CHAKRABORTY, Soumya DAS, Bongyong SONG, Samir Salib SOLIMAN
  • Patent number: 9125134
    Abstract: Out of band (OOB) communication facilitates femtocell operation. One or more proximity agent provides out of band communication with nodes (e.g., mobile client devices) to provide assistance in or otherwise facilitate femtocell discovery, reselection, and/or interference mitigation. Out of band communication techniques provide for low power discovery, association, and communication as compared to corresponding femtocell or cellular network communication techniques. An OOB proximity agent is provided in association with a femtocell to provide transmit power level control with respect to the femtocell. In operation, if a client device searches for and finds an OOB proximity agent, it will find a femtocell, thereby avoiding a need to aggressively search for femtocells.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: September 1, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Soumya Das, Nishith Chaubey, Samir S. Soliman
  • Patent number: 9113348
    Abstract: Methods, systems, and devices are provided that may address problems to enabling a user equipment (UE) in connected mode on a normal bandwidth cell to make inter-frequency measurements on another normal bandwidth cell and a flexible bandwidth cell. Some embodiment utilize a set of compressed mode gap configurations for measuring both normal bandwidth and flexible bandwidth inter-frequency cells with the following modification for flexible bandwidth cells: reducing the coherent length used by the UE; using the same cell search parameters at the UE but modifying the compressed mode gap parameters to accommodate both normal bandwidth and flexible bandwidth cell search; and/or maintaining the compressed mode gap parameters but reducing the search window size during cell search coherent accumulation. Some embodiments may configure separate compressed mode measurements configuration for normal bandwidth and flexible bandwidth measurements.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: August 18, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Olufunmilola O. Awoniyi, Samir Salib Soliman, Edwin C. Park, Roy Franklin Quick, Jr., Soumya Das
  • Patent number: 9107232
    Abstract: Methods and apparatuses for interference management between multiple wireless networks are disclosed. The apparatuses, and methods for doing the same, communicate with one or more wireless devices in each of first and second wireless networks, the first and second wireless networks having a common spectrum and different air interface protocols, and generate a message for transmission into the first wireless network to suppress transmission in the first network and to reserve a medium for wireless transmissions in the second wireless network.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: August 11, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Dilip Krishnaswamy, Amol Rajkotia, Soumya Das