Patents by Inventor Supratik Bhattacharjee

Supratik Bhattacharjee 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: 8130705
    Abstract: Methods and apparatus for modifying wireless devices represented or available capabilities and for allocating a portion of the UE's actual capabilities for simultaneously supporting a second service is disclosed. A modified capability is determined and offered to maintain the dedicated service while supporting a second service. The modified capability is disclosed to a system in anticipation of a reconfiguration of the dedicated service according to the modified capability. A device is configured to determine a modified capability to maintain a dedicated service while supporting a second service; and to disclose to a system the modified capability as the available capability for reconfiguring the dedicated service.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: March 6, 2012
    Assignee: Qualcomm Incorporated
    Inventors: Supratik Bhattacharjee, Nathan E Tenny, Sanjay Kenchareddy
  • Publication number: 20120033767
    Abstract: A method for quantizing decision metrics (e.g., log likelihood ratios (LLRs)) for reduction of memory requirements in wireless communication is described. The method includes selecting a quantization algorithm. The quantization algorithm may be selected as a function of a characteristic of a decision metric representative of a transport block received over a communication channel, a characteristic of the transport block, or a condition of the communication channel. The method further includes quantizing the decision metric using the selected quantization algorithm to generate at least one quantized decision metric representative of the transport block. The method further includes storing the quantized decision metric and an indicia of the selected quantization algorithm to enable recovery of the decision metric representative of the transport block prior to decoding.
    Type: Application
    Filed: July 12, 2011
    Publication date: February 9, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: Thomas B. Wilborn, Brian C. Banister, Sungho Yun, Supratik Bhattacharjee, Inyup Kang
  • Publication number: 20120028633
    Abstract: A method for wireless communication is disclosed that includes receiving a plurality of sets of transport blocks, each set of transport blocks associated with a radio link from a plurality of radio links in soft combining; performing a filtering operation of block errors in the plurality of radio links; and removing one or more radio links from the plurality of radio links in soft combining based on the filtering operation. An apparatus and processing system for performing the method are also disclosed.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: Supratik Bhattacharjee, Rajiv Nambiar
  • Publication number: 20110243051
    Abstract: Methods and apparatus for service continuity in a communication network. A method includes receiving a service in a first network coverage area, detecting entry into a second coverage area, acquiring control signaling information of the second coverage area in response to entering into the second coverage area, establishing traffic channels in the second coverage area while the service is received from the first coverage area, and switching to receive the service on the traffic channels in the second coverage area so that service disruption is minimized. Another method includes receiving a service in a first network coverage area, acquiring control signaling information associated with other coverage areas while in the first coverage area, detecting entry into a second coverage area, establishing traffic channels in the second coverage area, and switching to receive the service on the traffic channels in the second coverage area so that service disruption is minimized.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 6, 2011
    Applicant: QUAI.COMM Incorporated
    Inventors: Sanjay Kenchareddy, Vivek Venkatesh Ramachandran, Daniel Amerga, Supratik Bhattacharjee
  • Publication number: 20110206170
    Abstract: Certain aspects of the present disclosure propose an interference cancellation method based on the sub-blocks inside a block. For example, in the long term evolution (LTE) standard, the sub-blocks may be code blocks and the blocks may be transport block.
    Type: Application
    Filed: February 22, 2011
    Publication date: August 25, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Thomas B. Wilborn, Supratik Bhattacharjee
  • Patent number: 7986661
    Abstract: A terminal communicates with a first wireless network and obtains a list of cells in a second wireless network to measure. The terminal operates in a compressed mode and receives multiple transmission gap pattern sequences for different measurement purposes, e.g., RSSI measurements, BSIC identification, and BSIC re-confirmation. The terminal utilizes each transmission gap for its designated purpose or an alternate purpose. For each transmission gap, the designated purpose for the transmission gap is ascertained, and whether the transmission gap is usable for an alternate purpose is also determined based on at least one criterion. The transmission gap is used for the alternate purpose if the at least one criterion is satisfied and is used for the designated purpose otherwise. For example, a transmission gap designated for RSSI measurement may be used for BSIC identification, a transmission gap designed for BSIC identification or BSIC re-confirmation may be used for RSSI measurement, and so on.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: July 26, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Supratik Bhattacharjee, Messay Amerga, Brian Dong, Gurdeep Singh
  • Publication number: 20110154170
    Abstract: Methods, apparatus and articles of manufacture are disclosed that provide for early termination based on transport block fail for acknowledgement bundling in time division duplex. In one embodiment, a method for operating a communication device is provided. In this embodiment, the communication device decodes a downlink subframe that is part of a bundle of subframes. If it detects a CRC failure in the subframe, it inhibits decoding of at least one other subframe in the bundle if present and reports the failure to the sending node. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 23, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Raghu N. Challa, Thomas B. Wilborn, Supratik Bhattacharjee
  • Publication number: 20100331019
    Abstract: An apparatus and method for processing signals are disclosed. The apparatus may include a transceiver configured to receive a first paging signal during a first cycle, a memory, and a processor configured to store the received first paging signal in the memory, to switch the transceiver to an off state after the first paging signal is stored in the memory, and to process the stored first paging signal while the transceiver is in the off state.
    Type: Application
    Filed: June 29, 2009
    Publication date: December 30, 2010
    Inventors: Supratik Bhattacharjee, Joseph C. Chan, Brian C. Banister, Shivratna G. Srinivasan
  • Publication number: 20100330992
    Abstract: An apparatus and method for processing signals are disclosed. The apparatus may include a transceiver configured to receive a first paging signal during a first cycle, a memory, and a processor configured to store the received first paging signal in the memory, to switch the transceiver to an off state after the first paging signal is stored in the memory, to process the stored first paging signal while the transceiver is in the off state, and to determine whether to enter an online mode based on the processing.
    Type: Application
    Filed: June 29, 2009
    Publication date: December 30, 2010
    Inventors: Supratik Bhattacharjee, Brian C. Banister, Shivratna G. Srinivasan
  • Publication number: 20100080192
    Abstract: Cell timing is detected by first trying to detect a target handover cell through detecting a primary synchronization channel (P-SCH) followed by a common pilot channel (CPICH). If that fails, N number of retrials is performed using a full-window search on the CPICH. The full-window CPICH search is performed blindly, without any slot timing information from the P-SCH. Performance is improved while maintaining the benefits of faster acquisition methods in good channel conditions. The full-window search is more time consuming, but takes advantage of the stronger CPICH transmission. In good channel conditions, a mobile device can proceed quickly with the normal method of timing acquisition. With failure, the mobile device can switch to the longer search which has a higher probability of successfully completing the hard handover procedure. The overall effect is a higher success rate of hard handovers without a uniform increase of time spent in cell timing acquisition.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 1, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Brian Dong, Messay Amerga, Supratik Bhattacharjee, Xiaoming Zhu
  • Publication number: 20100080199
    Abstract: A method for handling out-of-synchronization (SYNC) includes generating a plurality of combination sets of transport channels utilized by a communication device. The method also includes selecting, based on a window-based parameter, a highest-ranking combination set of transport channels out of the plurality of combination sets of transport channels. The highest-ranking combination set of transport channels excludes one or more out-of-SYNC transport channels. The method further comprises providing, to a window-based data processing unit, data packets from transport channels in the highest-ranking combination set of transport channels, without providing data packets from the one or more out-of-SYNC transport channels to the window-based data processing unit. Apparatus and machine-readable media for out-of-SYNC avoidance and/or detection are also provided.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Samson Jim, Sanjay Kenchareddy, Supratik Bhattacharjee, Vivek Ramachandran, Tim T. Liou
  • Publication number: 20090137246
    Abstract: An apparatus and method for maintaining information during neighbor list updates comprising acquiring information of a first plurality of GSM neighbor cells; recording and keeping the information for a time period T; receiving a second plurality of GSM neighbor cells; comparing the second plurality of GSM neighbor cells with the first plurality of GSM cells in the record; if a GSM neighbor cell from the second plurality of GSM neighbor cells is not in the record, gathering information pertaining to the GSM neighbor cell; and if at least one GSM neighbor cell from the second plurality of GSM neighbor cells is in the record, determining if the age of the information pertaining to the at least one GSM neighbor cell is less than the time period T and if less than T, locating the at least one GSM neighbor cell.
    Type: Application
    Filed: September 11, 2008
    Publication date: May 28, 2009
    Inventors: Helen Jun Xing, Muhammad Khawar R. Khan, Rami H. Alnatsheh, Ramesh Chandra Chirala, Supratik Bhattacharjee
  • Publication number: 20080070556
    Abstract: Methods and apparatus for modifying wireless devices represented or available capabilities and for allocating a portion of the UE's actual capabilities for simultaneously supporting a second service is disclosed. A modified capability is determined and offered to maintain the dedicated service while supporting a second service. The modified capability is disclosed to a system in anticipation of a reconfiguration of the dedicated service according to the modified capability. A device is configured to determine a modified capability to maintain a dedicated service while supporting a second service; and to disclose to a system the modified capability as the available capability for reconfiguring the dedicated service.
    Type: Application
    Filed: September 11, 2007
    Publication date: March 20, 2008
    Applicant: QUALCOMM Incorporated
    Inventors: Supratik Bhattacharjee, Nathan E. Tenny, Sanjay Kenchareddy
  • Publication number: 20070207824
    Abstract: A terminal communicates with a first wireless network and obtains a list of cells in a second wireless network to measure. The terminal operates in a compressed mode and receives multiple transmission gap pattern sequences for different measurement purposes, e.g., RSSI measurements, BSIC identification, and BSIC re-confirmation. The terminal utilizes each transmission gap for its designated purpose or an alternate purpose. For each transmission gap, the designated purpose for the transmission gap is ascertained, and whether the transmission gap is usable for an alternate purpose is also determined based on at least one criterion. The transmission gap is used for the alternate purpose if the at least one criterion is satisfied and is used for the designated purpose otherwise. For example, a transmission gap designated for RSSI measurement may be used for BSIC identification, a transmission gap designed for BSIC identification or BSIC re-confirmation may be used for RSSI measurement, and so on.
    Type: Application
    Filed: March 2, 2006
    Publication date: September 6, 2007
    Inventors: Supratik Bhattacharjee, Messay Amerga, Brian Dong, Gurdeep Singh