Patents by Inventor Soumen Chakraborty

Soumen Chakraborty 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: 20140092720
    Abstract: A technique to receive a Multimedia Broadcast Multicast Service (MBMS) broadcast, in which a plurality of source symbols and repair symbols of a broadcast from a broadcast source are received at a UE. The source symbols and repair symbols are based on fountain codes, so that not all of the repair symbols are used to recover the originally sourced data. An application layer of the UE recovers the sourced data and places the receiver in a power-save mode following the last repair symbol used to recover the sourced data, so that remaining repair symbols are not received by the receiver and subsequently processed.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Soumen Chakraborty, Erik Stauffer
  • Patent number: 8675761
    Abstract: Methods and apparatus of allocating antennas for cyclic delay diversity (CDD) transmission are disclosed. One method includes estimating a transmission channel of a transceiver having a plurality of antennas. A subset of a plurality of transceiver antennas is selected based on the estimated transmission channel. A single transceiver antenna of the subset is identified based on a channel quality of a transmission path of the single transceiver antenna. Cyclic delay diversity (CDD) signals are transmitted from the subset of the plurality of antennas, wherein a minimally delayed CDD signal is transmitted from the identified single transceiver antenna of the subset of the plurality of transceiver antennas.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: March 18, 2014
    Assignee: Broadcom Corporation
    Inventors: Djordje Tujkovic, Vummintala Shashidhar, Erik Stauffer, Rishi Ranjan, Soumen Chakraborty, Bertrand Hochwald, Sriram Rajagopal, Sam Alex
  • Publication number: 20140040694
    Abstract: TTI bundling is included for Msg3 transmissions in LTE communications. A reserved group of preambles or reserved set of random access preamble transmission opportunities are used to indicate user equipment (UE) need of uplink (UL) transmission of a TTI-bundled Msg3. The UE transmits the same redundancy version for transmissions within a TTI bundle as the eNB expects even if any of the transmissions are dropped due to collisions with an Msg3 transmission. In addition, co-existence of TTI bundling and UL semi-persistent scheduling (SPS) for TDD DL/UL configurations is provided using SPS intervals which are multiples of various fixed time periods.
    Type: Application
    Filed: July 3, 2013
    Publication date: February 6, 2014
    Inventors: Sindhu Verma, Shubhodeep Adhikari, Soumen Chakraborty
  • Publication number: 20130343252
    Abstract: Embodiments provide power saving schemes for a user equipments (UE) in low power supply state. The power saving schemes include network-assisted power saving schemes and UE-triggered power saving schemes. Network-assisted power saving schemes require network awareness of the low power supply state of the UR Thus, embodiments provide the UE the ability to communicate its power supply state to the network. UE-triggered power saving schemes may or may not require network awareness of the UE s power supply state andd/or of the execution of the HE-triggered power saving scheme at the UE.
    Type: Application
    Filed: March 28, 2013
    Publication date: December 26, 2013
    Inventors: Soumen CHAKRABORTY, Erik STAUFFER, Sindhu VERMA
  • Publication number: 20130308483
    Abstract: A method and apparatus of selecting which of a plurality of receiver chains of a mobile unit to receive wireless signals, is disclosed. One method includes measuring a first receive signal quality while all of the plurality of receiver chains are receiving wireless signals, and measuring a second receive signal quality while a subset of the plurality of receiver chains are receiving wireless signals. The subset of the plurality of receiver chains are selected to receive wireless signal unless the first receive signal quality is a threshold better than the second receive signal quality. If the first receive signal quality is a threshold better than the second receive signal quality then all the plurality of receiver chains are selected to receive wireless signals.
    Type: Application
    Filed: July 22, 2013
    Publication date: November 21, 2013
    Applicant: Broadcom Corporation
    Inventors: Louay JALLOUL, Sam P. Alex, Soumen Chakraborty, Sindhu Verma, Manish Airy, Anuj Puri
  • Patent number: 8494466
    Abstract: A method and apparatus of selecting which of a plurality of receiver chains of a mobile unit to receive wireless signals, is disclosed. One method includes measuring a first receive signal quality while all of the plurality of receiver chains are receiving wireless signals, and measuring a second receive signal quality while a subset of the plurality of receiver chains are receiving wireless signals. The subset of the plurality of receiver chains are selected to receive wireless signal unless the first receive signal quality is a threshold better than the second receive signal quality. If the first receive signal quality is a threshold better than the second receive signal quality then all the plurality of receiver chains are selected to receive wireless signals.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: July 23, 2013
    Assignee: Broadcom Corporation
    Inventors: Louay Jalloul, Sam P. Alex, Soumen Chakraborty, Sindhu Verma, Manish Airy, Anuj Puri
  • Publication number: 20130163441
    Abstract: The present disclosure provides systems and methods for decoupling downlinks and uplinks between user equipment (UE) and base stations. Briefly described, in architecture, one embodiment of the system comprises UE (e.g., cellular telephones, mobile devices, etc.) for independently establishing an uplink (UL) and a downlink (DL). One embodiment of the method comprises the steps of establishing a DL to an optimal DL base station (BS), and establishing an UL to an optimal UL BS.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 27, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Sindhu Verma, Soumen Chakraborty
  • Publication number: 20130130694
    Abstract: A wireless communication device is disclosed that is capable of performing efficient handoffs in order to maximize connection time with either a serving or target base station. The wireless communication device performs measurements of only intra-frequency base stations to avoid retuning its radio module. Based on this information, as well as stored information relating to nearby base stations, the serving base station is able to estimate a position of the wireless communication device and compare the estimated position to positions of the known base stations in order to make a handoff decision. In addition, by storing information during measurement or handoff preparation, the device is capable of skipping handoff steps, immediately return to the serving base station after handoff failure, and/or perform streamlined PLMN searching.
    Type: Application
    Filed: December 29, 2011
    Publication date: May 23, 2013
    Applicant: Broadcom Corporation
    Inventors: Arzad Alam KHERANI, Soumen Chakraborty, Erik Stauffer, Manish Airy, Rishi Ranjan, Phani Kiran Boddapati, C. Ashok Kumar Reddy
  • Publication number: 20120213149
    Abstract: A method and system are provided in which a mobile device may be operable for long term evolution (LTE) communication or some other wireless technology via two or more transmit antennas. The device may comprise a power amplifier for each transmit antenna with substantially similar maximum power being provided by both amplifiers. A power headroom value may be determined in the device based on path loss values between the transmit antennas and a base station and the maximum transmit power for each transmit antenna. Transmission via one of the transmit antennas may occur concurrently with transmission via another of the transmit antennas. The device may generate an indication of the determined power headroom value for communication to the base station. The power headroom value may be reported periodically or in response to a change in the power received at the base station.
    Type: Application
    Filed: March 31, 2011
    Publication date: August 23, 2012
    Inventors: Soumen Chakraborty, Rishi Ranjan, Erik Stauffer, Kamlesh Rath, Manish Airy
  • Patent number: 8208433
    Abstract: A method and apparatus i.e. Base Station for allocating resources in a wireless communication system is provided. The method includes generating a plurality of first groups of allocation units based on one or more of a plurality of Modulation and Coding Schemes (MCSs) and traffic characteristics in the wireless communication system. The method further includes generating a second group of slots including resource allocation information for mapping first groups of allocation units to Mobile Stations (MSs) based on MCSs and traffic characteristics associated with first groups of allocation units and the MSs. Thereafter, the method persistently allocates each first group of allocation units to the MSs based on one or more of the resource allocation information and a communication state associated with each MS. Further, the method also identifies if each MS has succeeded in decoding the persistent resource allocation sent in the second group of slots.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: June 26, 2012
    Assignee: Broadcom Corporation
    Inventors: Soumen Chakraborty, Sindhu Verma, Manish Airy, Anuj Puri
  • Publication number: 20120142291
    Abstract: Various embodiments of the present invention recognize at least two zones of operation for a communication device. In a first zone, which is sufficiently spaced away from a human head or body that SAR limits will be met, transmit power delivered to an antenna of a communication device may be maximized within any other constraints under which the communication device operates. In a second zone, which is not sufficiently spaced away from a human head or body, transmit power is redistributed such that SAR limitations are met without affecting the transmit power control loop of the communication device. For example, a second antenna physically disposed at a different location within the communication device may be used either instead of, or in addition to, the first transmit antenna in order that the SAR limits are met.
    Type: Application
    Filed: November 28, 2011
    Publication date: June 7, 2012
    Applicant: Broadcom Corporation
    Inventors: Kamlesh Rath, Erik Stauffer, Rishi Ranjan, Soumen Chakraborty, Manish Airy, Bertrand Hochwald, Robert Lorenz, Richard Compton, Rakesh Agrawal
  • Publication number: 20120071195
    Abstract: Systems and methods for regulating transmit power in a mobile station to comply with SAR limits are disclosed. A mobile station may include a processor, transmitter, and proximity sensor. The transmitter is configured to operate at a transmit power controlled by a first transmit power limit. The proximity sensor identifies how close the mobile station is to a human head. A transmit power regulator, implemented on the processor, determines the cumulative energy radiated by the transmitter over a specified number of frames. If the cumulative energy exceeds an energy limit based on a SAR limit, and the proximity sensor indicates that the mobile station is close to a human head, the transmit power regulator may decrease the transmit power limit of the transmitter.
    Type: Application
    Filed: September 21, 2011
    Publication date: March 22, 2012
    Applicant: Broadcom Corporation
    Inventors: Soumen Chakraborty, Rishi Ranjan, Kamlesh Rath, Manish Airy
  • Publication number: 20110228747
    Abstract: Methods and systems of a mobile station transmitting information to a base station are disclosed. The mobile station may transmit information with improved uplink coverage, and bandwidth requests may be more efficient. Additionally, the mobile station may transmit information over multiple uplink frames using hybrid ARQ.
    Type: Application
    Filed: March 22, 2011
    Publication date: September 22, 2011
    Inventors: Kamlesh Rath, Rishi Ranjan, Manish Airy, Sindhu Verma, Soumen Chakraborty
  • Publication number: 20110223870
    Abstract: Methods and apparatus of allocating antennas for cyclic delay diversity (CDD) transmission are disclosed. One method includes estimating a transmission channel of a transceiver having a plurality of antennas. A subset of a plurality of transceiver antennas is selected based on the estimated transmission channel. A single transceiver antenna of the subset is identified based on a channel quality of a transmission path of the single transceiver antenna. Cyclic delay diversity (CDD) signals are transmitted from the subset of the plurality of antennas, wherein a minimally delayed CDD signal is transmitted from the identified single transceiver antenna of the subset of the plurality of transceiver antennas.
    Type: Application
    Filed: June 15, 2010
    Publication date: September 15, 2011
    Applicant: BECEEM COMMUNICATIONS INC.
    Inventors: Djordje Tujkovic, Vummintala Shashidhar, Erik Stauffer, Rishi Ranjan, Soumen Chakraborty, Bertrand Hochwald, Sriram Rajagopal, Sam Alex
  • Publication number: 20110064045
    Abstract: Methods of allocating a plurality of periodically distributed frames of communication between a first wireless transceiver and a second wireless transceiver are disclosed. One method includes detecting periodic data for transmission between the wireless base station and the wireless mobile unit. A transmission map that maps frequency and time slots is generated for transmission of the data packets. Allocation information is included within less than all of a plurality of transmission maps of the plurality of periodically distributed frames. The allocation information designates frequency and time slots in which data packets identified as a periodic data type are transmitted to the second wireless transceiver for the plurality of periodically distributed frames.
    Type: Application
    Filed: November 22, 2010
    Publication date: March 17, 2011
    Applicant: BECEEM COMMUNICATIONS INC.
    Inventors: Soumen Chakraborty, Sindhu Verma, Manish Airy, Anuj Puri
  • Patent number: 7839824
    Abstract: Methods of allocating a plurality of periodically distributed frames of communication between a first wireless transceiver and a second wireless transceiver are disclosed. One method includes detecting periodic data for transmission between the wireless base station and the wireless mobile unit. A transmission map that maps frequency and time slots is generated for transmission of the data packets. Allocation information is included within less than all of a plurality of transmission maps of the plurality of periodically distributed frames. The allocation information designates frequency and time slots in which data packets identified as a periodic data type are transmitted to the second wireless transceiver for the plurality of periodically distributed frames.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: November 23, 2010
    Assignee: BECEEM Communications Inc.
    Inventors: Soumen Chakraborty, Sindhu Verma, Manish Airy, Anuj Puri
  • Publication number: 20090247091
    Abstract: A method and apparatus of selecting which of a plurality of receiver chains of a mobile unit to receive wireless signals, is disclosed. One method includes measuring a first receive signal quality while all of the plurality of receiver chains are receiving wireless signals, and measuring a second receive signal quality while a subset of the plurality of receiver chains are receiving wireless signals. The subset of the plurality of receiver chains are selected to receive wireless signal unless the first receive signal quality is a threshold better than the second receive signal quality. If the first receive signal quality is a threshold better than the second receive signal quality then all the plurality of receiver chains are selected to receive wireless signals.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 1, 2009
    Inventors: Louay Jalloul, Sam P. Alex, Soumen Chakraborty, Sindhu Verma, Manish Airy, Anuj Puri
  • Publication number: 20090207796
    Abstract: A method and apparatus i.e. Base Station for allocating resources in a wireless communication system is provided. The method includes generating a plurality of first groups of allocation units based on one or more of a plurality of Modulation and Coding Schemes (MCSs) and traffic characteristics in the wireless communication system. The method further includes generating a second group of slots including resource allocation information for mapping first groups of allocation units to Mobile Stations (MSs) based on MCSs and traffic characteristics associated with first groups of allocation units and the MSs. Thereafter, the method persistently allocates each first group of allocation units to the MSs based on one or more of the resource allocation information and a communication state associated with each MS. Further, the method also identifies if each MS has succeeded in decoding the persistent resource allocation sent in the second group of slots.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 20, 2009
    Applicant: BECEEM COMMUNICATIONS INC
    Inventors: SOUMEN CHAKRABORTY, SINDHU VERMA, MANISH AIRY, ANUJ PURI
  • Publication number: 20090034467
    Abstract: Methods of allocating a plurality of periodically distributed frames of communication between a first wireless transceiver and a second wireless transceiver are disclosed. One method includes detecting periodic data for transmission between the wireless base station and the wireless mobile unit. A transmission map that maps frequency and time slots is generated for transmission of the data packets. Allocation information is included within less than all of a plurality of transmission maps of the plurality of periodically distributed frames. The allocation information designates frequency and time slots in which data packets identified as a periodic data type are transmitted to the second wireless transceiver for the plurality of periodically distributed frames.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Inventors: Soumen Chakraborty, Sindhu Verma, Manish Airy, Anuj Puri