Patents by Inventor Prachi P. Kumar

Prachi P. Kumar 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: 8666318
    Abstract: A method and apparatus used in an interfering cell of a cellular radio communication system for managing uplink transmissions. Information is received at the interfering cell, including a magnitude of an interference measured in a neighboring cell. The interfering cell has one or more active communication links to respective communication devices. A determination is made that a communication device will transmit pending data using a data repetition mode. The determination is based on the magnitude of the interference. In some embodiments, a specific data repetition mode is determined, based at least on the magnitude of the interference. A command is sent to the communication device to transmit the pending data using the specific data repetition mode.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: March 4, 2014
    Assignee: Motorola Mobility LLC
    Inventor: Prachi P. Kumar
  • Patent number: 8121552
    Abstract: A wireless communication system that provides periodic channel quality feedback adjusts a channel condition reporting period for a subscriber station based on the multiple channel condition information reports, such as CQI messages, received from the subscriber station.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: February 21, 2012
    Assignee: Motorola Mobility, Inc.
    Inventors: Gregory M. Agami, Saten D. Barve, Jiangnan Jason Chen, Prachi P. Kumar
  • Patent number: 7965683
    Abstract: A method and system for allocating a particular uplink control region to both HARQ ACKCH and CQICH in order to maximize uplink bandwidth for data transfer in a communication network. A control region scheduling (CRS) utility assigns a higher priority to HARQ ACKCH relative to CQICH. When both HARQ ACKCH and CQICH are to be allocated for a subscriber in the same region in the same frame, HARQ ACKCH is allocated in the region while CQICH is rejected. As the substitute to the rejected CQICH, the CRS utility may use current uplink channel quality information in combination with the corresponding HARQ ACK transmission to estimate the downlink channel quality information for the subscriber. Upon receiving the HARQ ACK information, the CRS utility updates the subscriber(s) uplink channel quality information. The CRS utility also provides a configurable option of activating or de-activating the sharing of the uplink control region.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: June 21, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: Chen Mu, Prachi P. Kumar, Nghia T. Vuong, Jun Wang
  • Publication number: 20100331027
    Abstract: A method and apparatus used in an interfering cell of a cellular radio communication system for managing uplink transmissions. Information is received at the interfering cell, including a magnitude of an interference measured in a neighboring cell. The interfering cell has one or more active communication links to respective communication devices. A determination is made that a communication device will transmit pending data using a data repetition mode. The determination is based on the magnitude of the interference. In some embodiments, a specific data repetition mode is determined, based at least on the magnitude of the interference. A command is sent to the communication device to transmit the pending data using the specific data repetition mode.
    Type: Application
    Filed: June 24, 2009
    Publication date: December 30, 2010
    Applicant: MOTOROLA, INC.
    Inventor: Prachi P. Kumar
  • Publication number: 20090310542
    Abstract: A method and system for allocating a particular uplink control region to both HARQ ACKCH and CQICH in order to maximize uplink bandwidth for data transfer in a communication network. A control region scheduling (CRS) utility assigns a higher priority to HARQ ACKCH relative to CQICH. When both HARQ ACKCH and CQICH are to be allocated for a subscriber in the same region in the same frame, HARQ ACKCH is allocated in the region while CQICH is rejected. As the substitute to the rejected CQICH, the CRS utility may use current uplink channel quality information in combination with the corresponding HARQ ACK transmission to estimate the downlink channel quality information for the subscriber. Upon receiving the HARQ ACK information, the CRS utility updates the subscriber(s) uplink channel quality information. The CRS utility also provides a configurable option of activating or de-activating the sharing of the uplink control region.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 17, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Chen Mu, Prachi P. Kumar, Nghia T. Vuong, Jun Wang
  • Publication number: 20090168708
    Abstract: A technique for operating a wireless communication device includes assigning re-transmission identifiers, such as hybrid automatic repeat request (HARQ) channel identifications, automatic repeat request (ARQ) channel identifications, and ARQ Identifier Sequence Numbers, to at least a first re-transmission identifier group and a second re-transmission identifier group, wherein each re-transmission identifier group is associated with a different quality of service parameter. The technique identifies whether a committed quality of service is met for a connection based on whether a communication on the connection is associated with the first re-transmission identifier group or the second re-transmission identifier group.
    Type: Application
    Filed: October 27, 2008
    Publication date: July 2, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Prachi P. Kumar, Gregory M. Agami, Jiangnan Jason Chen, Mark J. Marsan, Trang K. Nguyen
  • Publication number: 20090003257
    Abstract: A method, information processing system, and wireless communication system schedules transmission of data packets in a wireless communication network. At least one selected data packet to be retransmitted to at least one respective receiver (108) is identified. At least one respective selected data packet is scheduled for retransmission (620) in a set of available transmission slots to at least one respective receiver (108). The scheduling is performed prior to determining a failure of a previous communication of the selected data packet and in response to the identifying.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 1, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Prachi P. Kumar, Yuda Y. Luz, Mark J. Marsan
  • Publication number: 20080057969
    Abstract: A wireless communication system that provides periodic channel quality feedback adjusts a channel condition reporting period for a subscriber station based on the multiple channel condition information reports, such as CQI messages, received from the subscriber station.
    Type: Application
    Filed: September 5, 2006
    Publication date: March 6, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Gregory M. Agami, Saten D. Barve, Jiangnan Jason Chen, Prachi P. Kumar