Patents by Inventor Ajit Nimbalker

Ajit Nimbalker 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).

  • Radio link monitoring in a wireless communication device for a enhanced control channel
    Patent number: 8995366
    Abstract: A method (400) and user equipment (106) monitor a radio link for a wireless communication terminal for an enhanced control channel. A processor (304) may receive a first type of reference signal. The processor may monitor a first type of control channel. The processor may estimate a first synchronization condition associated with the radio link based on the first type of reference signal. The processor may monitor the second type of control channel. The processor may estimate a second synchronization condition associated with the radio link based on a second type of reference signal.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 31, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Ajit Nimbalker, Sandeep H. Krishnamurthy, Robert T. Love
  • Radio link monitoring in a wireless communication device
    Patent number: 8982693
    Abstract: Methods and apparatus' of determining radio link quality are disclosed. According to various implementations, a user equipment detects an out-of-synchronization condition corresponding to a first control channel, and monitors a second control channel in response to the detecting the out-of synchronization condition.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: March 17, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Sandeep H. Krishnamurthy, Ravi Kuchibhotla, Robert T. Love, Vijay Nangia, Ajit Nimbalker
  • Radio link monitoring in a wireless communication device for an enhanced control channel
    Patent number: 8971881
    Abstract: A method (400) and user equipment (106) monitor a radio link for a wireless communication terminal for an enhanced control channel. A processor (304) may acquire signaling configuring the user equipment to monitor for a first type of control channel, where the first type of control channel can be demodulated based on a first type of reference signal. The processor may receive a second type of reference signal in at least one or more resource block set, where the second type of reference signal can be distinct from the first type of reference signal. The processor may estimate a synchronization condition based on the received second type of reference signal and at least one attribute of the control channel. The processor may send an output from a current layer to a higher layer based on the estimated synchronization condition.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 3, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Ajit Nimbalker, Sandeep H. Krishnamurthy, Robert T. Love
  • Method for providing a contention based uplink channel
    Patent number: 8942166
    Abstract: A method, a mobile system, and a user communication device are disclosed. A receiving unit 408 may receive a downlink packet 620 from a base station 108. A configuration data storage 412 may store contention based grant data upon receiving the downlink packet 620 and prior to an uplink packet 810 becoming available. A transmitting unit may send an uplink packet 810 based on the contention based grant data.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: January 27, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Murali Narasimha, Gerrit Hiddink, Ravi Kuchibhotla, Robert Love, Ajit Nimbalker
  • Resource allocation in wireless communication systems
    Patent number: 8934417
    Abstract: A wireless communication terminal including a controller coupled to a transceiver, configured to receive a first and second control messages on an anchor carrier is disclosed. The first control message includes a resource assignment for the anchor carrier and the second control message is associated with a set of component carriers that are distinct from the anchor carrier. The controller determines a resource assignment for at least one component carrier in the set of component carriers using both the first and the second control messages.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: January 13, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Ravikiran Nory, Ravi Kuchibhotla, Robert T. Love, Vijay Nangia, Ajit Nimbalker, Kenneth A. Stewart, Xiangyang Zhuang
  • Method and apparatus using two radio access technologies for scheduling resources in wireless communication systems
    Patent number: 8934500
    Abstract: In a method for scheduling resources, the method includes receiving a first control channel in a first subframe (426) as a part of wireless communication between a user equipment (102) and a network equipment (110) using a first type of radio access technology wherein the first control channel (408) includes a first scheduling grant for scheduling resources in a second subframe (424) using a second type of radio access technology. The method also includes receiving a second control channel in the first subframe using the first type of radio access technology wherein the second control channel includes a second scheduling grant for the scheduling resources in the first subframe using the first type of radio access technology.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: January 13, 2015
    Assignee: Motorola Mobility LLC
    Inventors: Robert T. Love, Ajit Nimbalker, Ravikiran Nory, Kenneth A. Stewart
  • Energy-saving base station and method
    Patent number: 8902830
    Abstract: A wireless communication user terminal obtains uplink access configuration information on a physical downlink control channel (PDCCH) addressed to a plurality of user terminals by processing the PDCCH based on a first system information received from a base station on a physical broadcast channel (PBCH) and based on synchronization information. The terminal sends a signature waveform based on the uplink access configuration information, prior to receiving system information in addition to the first system information, whereby the signature waveform enables the base station to transition from a relatively low power operating mode to a relatively high power operating mode.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: December 2, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Ajit Nimbalker, Ravi Kuchibhotla, Robert T. Love, Vijay Nangia, Ravikiran Nory, Xiangyang Zhuang
  • METHOD AND APPARATUS FOR ENHANCED MODULATION IN A WIRLESS COMMUNICATION SYSTEM
    Publication number: 20140313985
    Abstract: Disclosed are methods for facilitating enhanced modulation (such as 256-QAM) in wireless networks. The methods generally involve enhancements to physical-layer signaling (such as enhanced MCS tables), enhancements to transport-block tables (to support enhanced MCS values), CSI-feedback enhancements (to ensure that the UE signals the appropriate MCS for enhanced modulation), enhancements to higher-layer signaling, allowing UEs to signal their ability to use the enhanced modulation, and UE category enhancements.
    Type: Application
    Filed: July 24, 2013
    Publication date: October 23, 2014
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Ajit Nimbalker, Ravikiran Nory
  • Methods and Devices for Cell Discovery
    Publication number: 20140302855
    Abstract: This disclosure sets forth methods and devices for communication between mobile devices and base stations with active and dormant states. In an embodiment, a base station transmits system information during an active state of the base station with at least one system-information message. The at least one system-information message includes a SystemInformationBlockType1 (“SIB1”) message with a first update-indicator field. The base station selects an update value that indicates whether the system information has changed since a previous transmission of a previous SIB1 message. The base station transmits at least one dormant-state message during a dormant state of the base station with the selected update value in a second update-indicator field of the at least one dormant-state message.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 9, 2014
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Ravikiran Nory, Sandeep H. Krishnamurthy, Ravi Kuchibhotla, Robert T. Love, Vijay Nangia, Ajit Nimbalker
  • Methods and Devices for Cell Discovery
    Publication number: 20140302856
    Abstract: This disclosure sets forth methods and devices for communication between mobile devices and base stations with active and dormant states. In an embodiment, a base station transmits system information during an active state of the base station with at least one system-information message. The at least one system-information message includes a SystemInformationBlockType1 (“SIB1”) message with a first update-indicator field. The base station selects an update value that indicates whether the system information has changed since a previous transmission of a previous SIB1 message. The base station transmits at least one dormant-state message during a dormant state of the base station with the selected update value in a second update-indicator field of the at least one dormant-state message.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 9, 2014
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Ravikiran Nory, Sandeep H. Krishnamurthy, Ravi Kuchibhotla, Robert T. Love, Vijay Nangia, Ajit Nimbalker
  • METHOD AND APPARATUS FOR RECEIVING A CONTROL CHANNEL
    Publication number: 20140293939
    Abstract: Various methods and apparatuses for receiving a control channel involve a communication device monitoring a first control and receiving information from a network regarding the configuration of a second control channel. The communication device receives an uplink grant from the network; transmits a message to the network, in which the message indicates to the network that the communication device is capable of monitoring the second control channel. The communication device monitors the second control channel based on the configuration information receiving via the first control channel.
    Type: Application
    Filed: June 17, 2014
    Publication date: October 2, 2014
    Inventors: Ravikiran Nory, Ravi Kuchibhotla, Robert T. Love, Vijay Nangia, Murali Narasimha, Ajit Nimbalker
  • Method and apparatus for encoding and decoding data
    Patent number: 8850286
    Abstract: A method and apparatus for selecting interleaver sizes for turbo codes is provided herein. During operation information block of size K is received. An interleaver size K? is determined that is related to K?, where K? from a set of sizes; wherein the set of sizes comprise K?=ap×f, pmin?p?pmax; fmin?f?fmax, wherein a is an integer and f is a continuous integer between fmin and fmax, p takes integer values between pmin and pmax, a>1, pmax>pmin, pmin>1. The information block of size K is padded into an input block of size K? using filler bits, if needed. Encoding is performed using the original input block and the interleaved input block to obtain a codeword block using a turbo encoder. The codeword block is transmitted through the channel.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: September 30, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Ajit Nimbalker, Yufei Wu Blankenship, Brian K. Classon
  • REFERENCE SIGNAL FOR A CONTROL CHANNEL IN WIRELESS COMMUNICATION NETWORK
    Publication number: 20140226761
    Abstract: A wireless communication terminal receives a first set of pilot signal resource elements and control information in spatial layers in a first resource block in a subframe and a second set of pilot signal resource elements and data in spatial layers in a second resource block in the subframe, wherein the first and second resource blocks span a set of time symbols in a sub-frame, the first resource blocks span a first set of frequency carriers in the sub-frame, and the second resource blocks span a second set of frequency carriers in the sub-frame. The terminal decodes the spatial layers in which the control information is received using the first set of pilot signal resource elements. The terminal also decodes the spatial layers in which the data are received in the second resource block using the second set of pilot signal resource elements.
    Type: Application
    Filed: October 29, 2013
    Publication date: August 14, 2014
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Ravikiran Nory, Vijay Nangia, Ajit Nimbalker, Krishna Kamal Sayana
  • METHOD AND APPARATUS FOR SOFT BUFFER MANAGEMENT FOR CARRIER AGGREGATION
    Publication number: 20140198758
    Abstract: An apparatus and a method therein include selecting a size of a soft buffer memory partition per component carrier in a Carrier Aggregation scenario. The method supports multiple carriers to select a size of a soft buffer memory partition, the partition associated with receiving data on at least one component carrier, the multi-carrier system comprising at least two component carriers, each component carrier is associated with a configured bandwidth, the apparatus comprising the processor configured to select a size of a soft buffer memory partition for the first component carrier based at least in part on a first total number of soft channel bits, a first number associated with hybrid automatic retransmit request processes, and the configured bandwidth of the first component carrier.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Inventors: Ajit Nimbalker, Vijay Nangia, Ravikiran Nory
  • Method and Apparatus for Multi-Radio Coexistence on Adjacent Frequency Bands
    Publication number: 20140198765
    Abstract: Various methods for controlling an aggressor user equipment (UE) can use two transmission power control loops to mitigate UE-to-UE adjacent carrier frequency band interference to a geographically proximal victim UE. The aggressor UE can select between different transmission power parameters based on two (or more) power values. The usage of any particular power value depends on the time period of the transmission. For example, if a proximal victim UE is scheduled to receive when the aggressor UE is scheduled to transmit, a lower power value may be selected as instructed by a co-scheduler or determined by the aggressor UE. The aggressor UE can also send dual power headroom reports to its serving base station based on the two power values.
    Type: Application
    Filed: March 14, 2014
    Publication date: July 17, 2014
    Applicant: Motorola Mobility LLC
    Inventors: Sandeep H. Krishnamurthy, Robert T. Love, Ajit Nimbalker, Ravikiran Nory, Kenneth A. Stewart
  • METHOD AND APPARATUS FOR DEVICE-TO-DEVICE COMMUNICATION
    Publication number: 20140185495
    Abstract: A first user equipment (UE) receives information regarding a signal configuration from a network entity on a first carrier, and a reference signal from a second UE on a second carrier. The second carrier is associated with a transmission bandwidth configuration and a channel bandwidth. The transmission bandwidth configuration of the second carrier is contained within the channel bandwidth of the second carrier. The reference signal is within the channel bandwidth of the second carrier and in proximity to an edge of the transmission bandwidth configuration of the second carrier.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Ravi Kuchibhotla, Robert T. Love, Ajit Nimbalker, Ravikiran Nory
  • METHOD AND APPARATUS FOR DEVICE-TO-DEVICE COMMUNICATION
    Publication number: 20140187283
    Abstract: A first user equipment (UE) wirelessly communicates with a network element (e.g., an eNB) on a carrier (e.g., a cellular uplink or downlink carrier) in accordance with its first capability partitioning configuration. The first UE engages in direct wireless communication on the carrier with a second UE in accordance its second capability partitioning configuration.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Ajit Nimbalker, Ravi Kuchibhotla, Robert T. Love, Vijay Nangia, Ravikiran Nory
  • METHOD AND APPARATUS FOR DEVICE-TO-DEVICE COMMUNICATION
    Publication number: 20140185530
    Abstract: A first user equipment (UE) and a second UE communicate with a network element (e.g., an eNB) over a carrier (e.g., an uplink or downlink cellular carrier). The first and second UEs also engage in D2D communication using resources of the carrier that have been allocated to them by the network entity. Using the allocated resources, the first and second UEs communicate using a subframe that has a first set of symbols in during which the first UE transmits, a second set of symbols during which the second UE transmits, and a guard interval between the first and second UEs.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Ravi Kuchibhotla, Robert T. Love, Ajit Nimbalker, Ravikiran Nory
  • Method and apparatus for receiving a control channel
    Patent number: 8761109
    Abstract: Various methods and apparatuses for receiving a control channel involve a communication device monitoring a first control and receiving information from a network regarding the configuration of a second control channel. The communication device receives an uplink grant from the network; transmits a message to the network, in which the message indicates to the network that the communication device is capable of monitoring the second control channel. The communication device monitors the second control channel based on the configuration information receiving via the first control channel.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: June 24, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Ravikiran Nory, Ravi Kuchibhotla, Robert T. Love, Vijay Nangia, Murali Narasimha, Ajit Nimbalker
  • Method and apparatus for multi-radio coexistence on adjacent frequency bands
    Patent number: 8724492
    Abstract: A method and apparatus for a co-scheduler can mitigate UE-to-UE adjacent carrier frequency band interference by allocating three sets to a first user equipment uplink. Each set has at least one sub-carrier in a first frequency band, at least one uplink time period, and at least one transmission power parameter. The co-scheduler initially allocates the first set. The co-scheduler allocates the second set in response to detecting a second user equipment operating proximal to the first user equipment, and the second set differs from the first set in either at least one sub-carrier or at least one transmission power parameter. The co-scheduler allocates the third set in response to detecting that the second user equipment is no longer operating proximal to the first user equipment, and the third set differs from the second set in either at least one sub-carrier or at least one transmission power parameter.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: May 13, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Colin D Frank, Sandeep H Krishnamurthy, Robert T Love, Ajit Nimbalker, Ravikiran Nory, Kenneth A Stewart