Patents by Inventor Arnab Das

Arnab 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).

  • Publication number: 20200158323
    Abstract: A heat sink assembly for a light fixture can include at least one heat sink fin disposed in thermal communication with at least one heat-generating component of the light fixture, where the at least one heat sink fin includes a thermoplastic material. The at least one heat sink fin can absorb and dissipate sufficient heat to comply with applicable industry standards for the light fixture.
    Type: Application
    Filed: November 25, 2019
    Publication date: May 21, 2020
    Inventors: Alok Das, Anzar Pandurang Rade, Omkar Bharat Jadhav, Siddhartha Satya Saladi, Matthew Allan Canales, Sanjeev Bhimasenrao Kulkarni, Christopher Lee Bohler, Arnab Guha
  • Patent number: 10645693
    Abstract: Wireless terminals and base stations support multiple modes of dedicated control channel operation wherein wireless terminals are allocated different amounts of dedicated uplink resources for reporting control information. A set of dedicated control channel segments is utilized by a wireless terminal to communicate uplink control information reports to its serving base station attachment point. Full tone and split-tone modes of dedicated control channel operation are supported. In full tone mode, a single wireless terminal is allocated each of the dedicated control channel segments associated with a single logical tone. In split tone mode, dedicated control channel segments associated with a single logical tone are allocated between different wireless terminals, with each of the multiple wireless terminals receiving a different non-overlapping subset of the dedicated control channel segments. Logical dedicated control channel tones can be dynamically reallocated for full-tone mode use or split tone mode use.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: May 5, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Vladimir Parizhsky, Rajiv Laroia, Junyi Li, Sathyadev Venkata Uppala, Arnab Das
  • Publication number: 20190373500
    Abstract: Methods and apparatus related to the implementation and selection of alterative control information reporting formats are described. A control information reporting format, corresponding to a connection between a wireless terminal and a base station, e.g., for an uplink dedicated control channel, is selected, as a function of at least one of: an application being executed, device capability information, channel condition information, system loading information, and user quality of service information. Different wireless terminals may use different control information reporting formats at the same time. The same wireless terminal may use a different control information reporting format at different times.
    Type: Application
    Filed: August 19, 2019
    Publication date: December 5, 2019
    Inventors: Junyi LI, Arnab DAS, Pablo Alejandro ANIGSTEIN
  • Patent number: 10488031
    Abstract: A heat sink assembly for a light fixture can include at least one heat sink fin disposed in thermal communication with at least one heat-generating component of the light fixture, where the at least one heat sink fin includes a thermoplastic material. The at least one heat sink fin can absorb and dissipate sufficient heat to comply with applicable industry standards for the light fixture.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: November 26, 2019
    Assignee: Eaton Intelligent Power Limited
    Inventors: Alok Das, Anzar Pandurang Rade, Omkar Bharat Jadhav, Siddhartha Satya Saladi, Matthew Allan Canales, Sanjeev Bhimasenrao Kulkarni, Christopher Lee Bohler, Arnab Guha
  • Patent number: 10159006
    Abstract: A wireless communications system supports wireless connections between base station sector attachment points and wireless terminals. Individual wireless connections correspond to one of a downlink-macrodiversity mode of operation and a downlink non-macrodiversity mode of operation. A wireless terminal has, for each of its current connections, a base station assigned dedicated control channel for communicating uplink control information reports. The uplink control information reports include downlink signal-to-noise ratio reports based on measured received pilot channel signals. If a connection corresponds to a macrodiversity mode of operation, a reporting format for the SNR report is used which reports (i) an SNR value and (ii) an indication as to whether or not the connection is considered a preferred connection by the wireless terminal. If a connection corresponds to a non-macrodiversity mode of operation, a reporting format for the SNR report is used which reports an SNR value.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: December 18, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Pablo Anigstein, Murari Srinivasan, Junyi Li
  • Patent number: 9736721
    Abstract: Systems and methodologies are described that facilitate supporting multiple connections associated with a wireless terminal. Notifications may be provided to a primary base station upon establishment and/or removal of connections between the wireless terminal and secondary base station(s). Additionally, the multiple connections may be evaluated and a preferred connection from the set of multiple connections may be utilized to transfer data to the wireless terminal over a downlink connection.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: August 15, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Arnab Das, Murari Srinivasan, Pablo Alejandro Anigstein, Vladimir Parizhsky, Mathew Scott Corson
  • Patent number: 9661519
    Abstract: Techniques for efficiently sending reports in a wireless communication system are described. Reports may be sent repetitively in accordance with a reporting format. A terminal receives an assignment of a control channel used to send reports and determines a reporting format to use based on the assignment. The reporting format indicates a specific sequence of reports sent in specific locations of a control channel frame. The terminal generates a set of reports for each reporting interval and arranges the set of reports in accordance with the reporting format. The terminal repetitively sends a plurality of sets of reports in a plurality of reporting intervals. Reports may also be sent adaptively based on operating conditions. An appropriate reporting format may be selected based on the operating conditions of the terminal, which may be characterized by environment (e.g., mobility), capabilities, QoS, and/or other factors.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: May 23, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Sundeep Rangan, Pablo Anigstein, Junyi Li, Sathyadev Venkata Uppala, Rajiv Laroia
  • Patent number: 9578654
    Abstract: Methods and apparatus related to wireless terminal reporting alternative selection for a fixed bit size control information request report, e.g., a 4 bit uplink traffic channel request report, are described. A wireless terminal maintains a plurality of different request groups corresponding to uplink traffic to be transmitted. The same request report format includes a plurality of reporting alternatives, different reporting alternatives corresponding to different request groups. Backlog can and sometimes does exist simultaneously corresponding to request groups corresponding to different reporting alternatives. The wireless terminal uses priority information associated with the request groups having non-zero backlog to select a reporting alternative. In some embodiments, at least some of the request groups have priorities which are calculated by the wireless terminal and change as a function of determined transmission deadline information.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: February 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Vincent Park, Yunus Hussain, Samel Celebi
  • Patent number: 9572179
    Abstract: Methods and apparatus for communicating transmission backlog information are described. Reporting control factors are utilized to expand reporting possibilities for a fixed bit size request report. At least one report control factor is determined as a function of channel quality information, power information, device capability information, and/or quality of service information. A transmission backlog report value is interpreted as a function of a reporting control factor. A wide range of quantization schemes for reporting transmission backlog information are facilitated corresponding to a small bit size report. A communications device can adaptively select a quantization request level closely matched to its current needs such as to provide an accurate representation of its current traffic channel resource needs.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: February 14, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Sundeep Rangan, Pablo Anigstein, Murari Srinivasan
  • Patent number: 9473265
    Abstract: Methods and apparatus for communicating information using a plurality of report dictionaries are described. A plurality of request dictionaries are implemented for a wireless terminal to use for multi-bit uplink transmission backlog request reports communicated via the dedicated control channel. Each dictionary defines a different bit mapping interpretation for a set of multi-bit uplink transmission backlog request reports, e.g. a 3 bit uplink request report and a 4 bit uplink request report. The plurality of request dictionaries includes a default dictionary and additional dictionaries. The implementation of a plurality of alternative request dictionaries expands the reporting possibilities allowing a wireless terminal to use a reporting format well-suited to its current needs. The default dictionary is mandated to be used under certain predefined conditions, e.g., upon entry into the active state.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: October 18, 2016
    Assignee: QUALCOMM Incorporated
    Inventor: Arnab Das
  • Patent number: 9462604
    Abstract: Methods and apparatus related to reporting transmission backlog information are described. A wireless communications device maintains and updates transmission backlog information corresponding to a plurality of different transmission request groups. Different request groups may correspond to different uplink traffic queues. For a request reporting opportunity, the communications device selects a request group from among the plurality of different transmission request groups as a function of: request group changes in backlog with respect to previously reported requests, the changes taking into consideration base station allocation of transmission resources; and request group priority information. A request report is generated conveying backlog information corresponding to the selected request group, and the generated report is transmitted over a wireless communications link.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: October 4, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Samel Celebi, Yunus Hussain
  • Patent number: 9451491
    Abstract: An initial reporting structure for an uplink dedicated control channel is used by a wireless terminal following a transition into a state of wireless terminal operation or action which makes it desirable to provide a base station with an initial set of control information which can be used to support uplink transmission of user data. Subsequently while continuing operation in a state supporting uplink transmission of user data, a recurring scheduled reporting structure for the uplink dedicated control channel is followed by the wireless terminal. The initial reporting structure provides for communication of at least some information reports, e.g., infrequently scheduled reports, which may not have been otherwise communicated during the same time interval if the recurring scheduled reporting structure had not been overridden. Thus the use of initial report sets facilitates a rapid overall understanding by the serving base station attachment point of the wireless terminal's status.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: September 20, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Pabio Alejandro Anigstein
  • Publication number: 20160255633
    Abstract: Wireless terminals and base stations support multiple modes of dedicated control channel operation wherein wireless terminals are allocated different amounts of dedicated uplink resources for reporting control information. A set of dedicated control channel segments is utilized by a wireless terminal to communicate uplink control information reports to its serving base station attachment point. Full tone and split-tone modes of dedicated control channel operation are supported. In full tone mode, a single wireless terminal is allocated each of the dedicated control channel segments associated with a single logical tone. In split tone mode, dedicated control channel segments associated with a single logical tone are allocated between different wireless terminals, with each of the multiple wireless terminals receiving a different non-overlapping subset of the dedicated control channel segments. Logical dedicated control channel tones can be dynamically reallocated for full-tone mode use or split tone mode use.
    Type: Application
    Filed: May 6, 2016
    Publication date: September 1, 2016
    Inventors: Vladimir Parizhsky, Rajiv Laroia, Junyi Li, Sathyadev Venkata Uppala, Arnab Das
  • Patent number: 9338795
    Abstract: Methods and apparatus for communicating transmission backlog information are described. Reporting control factors are utilized to expand reporting possibilities for a fixed bit size request report. At least one report control factor is determined as a function of channel quality information, power information, device capability information, and/or quality of service information. A transmission backlog report value is interpreted as a function of a reporting control factor. A wide range of quantization schemes for reporting transmission backlog information are facilitated corresponding to a small bit size report. A communications device can adaptively select a quantization request level closely matched to its current needs such as to provide an accurate representation of its current traffic channel resource needs.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: May 10, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Sundeep Rangan, Pablo Alejandro Anigstein, Murari Srinivasan
  • Patent number: 9338767
    Abstract: Wireless terminals and base stations support multiple modes of control channel operation wherein wireless terminals are allocated different amounts of uplink resources for reporting control information. A set of control channel segments is utilized by a wireless terminal to communicate uplink control information reports to its serving base station attachment point. Full tone and split-tone modes of control channel operation are supported. In full tone mode, a single wireless terminal is allocated each of the control channel segments associated with a single logical tone. In split tone mode, control channel segments associated with a single logical tone are allocated between different wireless terminals, with each of the multiple wireless terminals receiving a different non-overlapping subset of the control channel segments. Logical control channel tones can be dynamically reallocated for full-tone mode use or split tone mode use.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: May 10, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Vladimir Parizhsky, Rajiv Laroia, Junyi Li, Sathyadev Venkata Uppala, Arnab Das
  • Publication number: 20160112929
    Abstract: Aspect of the present disclosure include A Mobile Ad Hoc Network (MANET) in which an intermediate relay node may engage in discreet packet-dropping practices for selfish (e.g., to conserve power) or other reasons. Each node in such a MANET has a dynamic reputation level known to all other nodes. Embodiments include improving the overall performance or robustness of such a MANET by adopting a routing strategy (e.g. routing protocol) which considers the reputation levels of intermediate relaying nodes in determining the best route from a source to a destination. Embodiments of the present disclosure also include a system for discovering a route between two nodes in a communication network. One or more nodes: (i) determine a reputation level of each neighboring node; (ii) sending a route discovery message that is addressed to the destination node to one neighboring node having a highest reputation level.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 21, 2016
    Applicant: NET IP, LLC
    Inventors: Arnab Das, Santanu Das
  • Patent number: 9226182
    Abstract: Aspect of the present disclosure include A Mobile Ad Hoc Network (MANET) in which an intermediate relay node may engage in discreet packet-dropping practices for selfish (e.g., to conserve power) or other reasons. Each node in such a MANET has a dynamic reputation level known to all other nodes. Embodiments include improving the overall performance or robustness of such a MANET by adopting a routing strategy (e.g. routing protocol) which considers the reputation levels of intermediate relaying nodes in determining the best route from a source to a destination. Embodiments of the present disclosure also include a system for discovering a route between two nodes in a communication network. One or more nodes: (i) determine a reputation level of each neighboring node; (ii) sending a route discovery message that is addressed to the destination node to one neighboring node having a highest reputation level.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: December 29, 2015
    Assignee: NET IP, LLC
    Inventors: Arnab Das, Santanu Das
  • Publication number: 20150334590
    Abstract: A wireless communications system supports wireless connections between base station sector attachment points and wireless terminals. Individual wireless connections correspond to one of a downlink-macrodiversity mode of operation and a downlink non-macrodiversity mode of operation. A wireless terminal has, for each of its current connections, a base station assigned dedicated control channel for communicating uplink control information reports. The uplink control information reports include downlink signal-to-noise ratio reports based on measured received pilot channel signals. If a connection corresponds to a macrodiversity mode of operation, a reporting format for the SNR report is used which reports (i) an SNR value and (ii) an indication as to whether or not the connection is considered a preferred connection by the wireless terminal. If a connection corresponds to a non-macrodiversity mode of operation, a reporting format for the SNR report is used which reports an SNR value.
    Type: Application
    Filed: July 29, 2015
    Publication date: November 19, 2015
    Inventors: Arnab Das, Pablo Anigstein, Murari Srinivasan, Junyi Li
  • Patent number: 9191840
    Abstract: A wireless terminal receives a broadcast uplink interference report request conveying a requested report type and/or a locally unique base station identifier. The wireless terminal receives and measures broadcast reference signals, e.g., beacon and/or pilot signals, transmitted from a plurality of base station attachment points. Specific type interference reports relate a current serving connection base station attachment point to a selected base station attachment point corresponding to the received base station identifier. Generic type interference reports relate a current serving base station connection attachment point to other unspecified base station attachment points whose broadcast reference signals have been detected by the wireless terminal. Sub-types of generic reports include summation function and maximum function reports. Timing information is sometimes used to determine report sub-type and/or sector type of the selected attachment point.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: November 17, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Junyi Li, Sundeep Rangan, Murari Srinivasan, Prashanth Hande, M. Scott Corson, Arnab Das
  • Patent number: 9161313
    Abstract: A wireless terminal determines the transmission power used for its dedicated control channel at a point in time, and generates a power report indicating a ratio of a maximum wireless terminal transmit power to the transmit power of the dedicated control channel at the point in time. The power report provides a measure of available transmit power for wireless terminal use for other purposes, e.g., uplink traffic channels, after taking into consideration the transmit power used for the dedicated control channel. The point in time has a known time offset from the start of a communications segment in which the power report is transmitted. This allows the base station receiving dedicated control channel uplink signals from the wireless terminal to measure the received signals, receive and process the communicated power report, and correlate information to be used for accurate wireless terminal closed loop power control.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: October 13, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Sundeep Rangan