Patents by Inventor Sumeeth Nagaraja

Sumeeth Nagaraja 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: 20200214042
    Abstract: A user equipment (UE) may initiate a random access (RACH) procedure using an uplink resource selected based on a corresponding received synchronization signal block. The UE may detect a random access procedure trigger. The UE may configure a selection threshold time. The selection threshold time may be based at least in part on a latency requirement of the UE. The UE may select a synchronization signal block having a corresponding uplink resource within the selection threshold time. The synchronization signal block and corresponding uplink resource satisfy one or more parameters or conditions. The UE may transmit a random access preamble on the corresponding uplink resource.
    Type: Application
    Filed: July 25, 2018
    Publication date: July 2, 2020
    Inventors: Sumeeth NAGARAJA, Muhammad Nazmul ISLAM, Sundar SUBRAMANIAN, Tao LUO, Peng CHENG
  • Publication number: 20200204433
    Abstract: Certain aspects of the present disclosure provide various techniques for beam recovery. For example, a method for wireless communication by a network entity may include providing configuration information to a user equipment (UE) indicating a sequence of target beams and timing information to try each target beam in the sequence, and attempting to communicate with the UE using one or more of the target beams according to the timing information, in response to a beam failure.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 25, 2020
    Inventors: Sumeeth NAGARAJA, Tao Luo
  • Publication number: 20200205145
    Abstract: Certain aspects of the present disclosure provide techniques for switching control beams in multi-link systems using new radio (NR) technology multiple-input multiple-output (MIMO) techniques. A user equipment (UE) may obtain a configuration from a base station (BS) comprising at least one first pattern of beams to monitor when performing a beam recovery procedure, communicate using beamforming, with the BS, via an active transmit and receive beam pair, determine a beam failure of the active transmit and receive beam pair, and monitor the beams according to the first pattern in response to the beam failure.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 25, 2020
    Inventors: Makesh Pravin JOHN WILSON, Tao LUO, Sony AKKARAKARAN, Xiao Feng WANG, Sumeeth NAGARAJA
  • Publication number: 20200205101
    Abstract: Wireless communications systems and methods related to synchronization signal (SS) transmission coordination among base stations (BSs) and restricted SS measurements at user equipments (UEs) are provided. A first BS transmits a first SS burst in a first SS transmission period of a plurality of SS transmission periods. The first SS transmission period is designated to the first BS. A second SS transmission period of the plurality of SS transmission periods is designated to a second BS. The first SS transmission period and the second SS transmission period are different. The first BS receives, from a UE, a first signal in synchronization with the first SS burst. The first signal includes a SS measurement of the first SS burst.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 25, 2020
    Inventors: Kaushik Chakraborty, Tao Luo, Xiaoxia Zhang, Sony Akkarakaran, Makesh Pravin John Wilson, Sumeeth Nagaraja, Wooseok Nam
  • Patent number: 10694578
    Abstract: Methods and apparatuses are provided for causing active hand-in of a device from a macrocell base station to a femto node, which can be an inter-frequency hand-in. The femto node can broadcast a beacon, which can be received and reported by a device to a source base station along with one or more parameters. The source base station can communicate a handover message to the femto node or a related femto gateway along with the one or more parameters. The femto node or femto gateway can disambiguate the intended target femto node based in part on the one or more parameters, which can include applying one or more filters. Applying the one or more filters may include applying an UL RSSI filter to the one or more femto nodes to determine whether presence of the device causes a rise in UL RSSI measured at the one or more femto nodes.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: June 23, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Andrei Radulescu, Vinay Chande, Jen Chen, Christophe Chevallier, Farhad Meshkati, Sanjiv Nanda, Damanjit Singh, Mehmet Yavuz, Sumeeth Nagaraja, Yan Zhou
  • Patent number: 10686506
    Abstract: Aspects of the present disclosure relate to deriving spatial receive parameters for quasi-colocation at a user equipment (UE). An exemplary method generally includes receiving a plurality of beams from a base station in a plurality of coarse directions, determining, based on the plurality of beams, a first spatial colocation parameter, transmitting an indication of a coarse direction associated with a beam having a highest receive strength of the plurality of beams, receiving a plurality of second beams from the base station based on the indication, the plurality of second beams having a narrower beam width than the plurality of beams and covering a beam width of the beam associated with the indicated coarse direction, determining, based on the plurality of second beams, a second spatial colocation parameter, transmitting an indication of the second beam having a highest receive strength, and refining at least one of the first or second spatial colocation parameters.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: June 16, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Makesh Pravin John Wilson, Tao Luo, June Namgoong, Sony Akkarakaran, Xiao Feng Wang, Sumeeth Nagaraja, Juan Montojo, Shengbo Chen, Kaushik Chakraborty, Wooseok Nam
  • Patent number: 10681725
    Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine that a signal characteristic of a unicast signal is better than a signal characteristic of a broadcast signal; and/or transmit, based at least in part on the determination, a request for an update to a master information block or a minimum system information block to be provided to the user equipment using the unicast signal. In some aspects, a base station may determine that a signal characteristic of a unicast signal associated with a user equipment (UE) is better than a signal characteristic of a broadcast signal broadcasted by the base station; and/or transmit, based on the determination, an update to a master information block (MIB) or a minimum system information block (MSIB) to the UE using the unicast signal. Numerous other aspects are provided.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: June 9, 2020
    Assignee: Qualcomm Incorporated
    Inventors: Kaushik Chakraborty, Tao Luo, Sumeeth Nagaraja, Keiichi Kubota, Makesh Pravin John Wilson, Juan Montojo, Xiao Feng Wang, Sony Akkarakaran, Wooseok Nam
  • Patent number: 10680700
    Abstract: Aspects of the present disclosure relate to techniques that may enhance radio link failure (RLF) procedures. In some cases, a UE may perform radio link monitoring (RLM) based on reference signals (RS) transmitted using a first set of beams, perform beam failure recovery (BFR) monitoring based on transmissions using a second set of beams, and adjust one or more radio link failure (RLF) parameters based on both the RLM monitoring and the BFR monitoring.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 9, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Kaushik Chakraborty, Tao Luo, Wooseok Nam, Sumeeth Nagaraja, Sony Akkarakaran, Makesh Pravin John Wilson, Xiao Feng Wang, Shengbo Chen, Juan Montojo
  • Patent number: 10681727
    Abstract: Methods, systems, and devices for wireless communication are described for selecting different uplink transmission parameters for transmission or retransmission of a random access message. A user equipment (UE) may transmit or retransmit a random access message such as a layer 2 or layer 3 (L2/L3) message to a base station during a random access procedure. The UE may select a transmission beam, uplink resource or transmission power for the transmission of the L2/L3 message that differ from those used for transmission of a previous random access message. The selection may be based on path loss associated with synchronization signals or previous transmissions. The selection may also be based on a maximum number of retransmissions.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: June 9, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Muhammad Nazmul Islam, Junyi Li, Tao Luo, Sumeeth Nagaraja
  • Patent number: 10674351
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) capable of supporting multiple antenna ports may determine that some combinations of antenna ports can be used simultaneously. The UE may make this determination by evaluating the relationships between the physical antennas and the transmit chains included in the UE. Upon determining that the combinations of antenna ports can be used simultaneously, the UE may send a message to a base station. The message may indicate whether two or more antenna ports can be used at the same time. The UE may communicate simultaneously over one or more antenna ports based on the scheduling information from the base station which takes into account the ability of the combination of antenna ports to be used concurrently.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 2, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Jay Kumar Sundararajan, Alexandros Manolakos, Naga Bhushan, Joseph Binamira Soriaga, Sumeeth Nagaraja
  • Patent number: 10666347
    Abstract: A user equipment (UE) may operate in a reception mode that includes a set of sleep cycles and a set of wake cycles. During a sleep cycle of the UE, a signal quality of an active beam carrying a control channel or a data channel may degrade. This may result in the UE failing to decode the control channel or the data channel during a subsequent wake cycle. In some aspects, the UE may perform a measurement of one or more beams, of a set of beams, prior to the wake cycle. In some aspects, the UE may identify a beam, of the one or more beams, to use for communication with a base station (BS). In this way, the UE reduces a delay in data transfer associated with performing beam recovery after failing to decode the control channel or data channel during the wake cycle.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: May 26, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Sony Akkarakaran, Sumeeth Nagaraja, Tao Luo, Makesh Pravin John Wilson, Ajay Gupta, Arumugam Chendamarai Kannan
  • Publication number: 20200154431
    Abstract: A base station may make more efficient use of resources by transmitting data in a control region of a slot in addition to a data region. In order to avoid performance loss, the base station may adjust the data transmission in the control region in comparison to a data transmission in a data region and may signal an indication to a UE to assist the UE in receiving the data transmission in the control region. An apparatus for wireless communication at the UE receives the indication from the base station regarding the data transmission in the control region and uses the indication to perform rate matching or demodulation of the data transmission in the control region. The indication may indicate any of a different MCS/rank/TPR, a reduced MCS/rank/TPR, an MCS/rank/TPR delta, a control span for a group of UEs, and a starting symbol for the data transmission. The indication may also indicate that there is no data transmitted on resources in the control region.
    Type: Application
    Filed: December 12, 2019
    Publication date: May 14, 2020
    Inventors: Makesh Pravin JOHN WILSON, Tao LUO, Sony AKKARAKARAN, Sumeeth NAGARAJA, Shengbo CHEN, Xiao Feng WANG, Kaushik CHAKRABORTY
  • Patent number: 10651995
    Abstract: Aspects of the present disclosure provide for the transmission of group common control information in 5G New Radio (NR) wireless communication systems. Group common control information may be transmitted to a group or subset of user equipment (UEs) within a cell utilizing a beam-sweeping configuration. A base station may utilize a plurality of transmit beams to transmit information within the cell, and a subset of the transmit beams may be identified for use in transmitting the group common control information to the group of UEs. In addition, the base station may identify spatial quasi-colocation (QCL) relationships between reference beams corresponding in direction to the selected subset of transmit beams and resources reserved for the group common control information and provide the spatial QCL relationships to the UEs in the group.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: May 12, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Wooseok Nam, Tao Luo, Sony Akkarakaran, Makesh Pravin John Wilson, Sumeeth Nagaraja, Xiao Feng Wang, Shengbo Chen
  • Patent number: 10638378
    Abstract: User equipment (UE) selection of contention-free random access (CFRA) and contention-based random access (CBRA) for handover processing is discussed. The aspects include receiving a random access configuration at the UE including configuration for CFRA and CBRA. The UE will determine a first random access resource, wherein the first random access resource maps to one or more beams from a target base station. The UE may initiate a random access request using the CFRA when the first random access resource is a contention-free resource, and initiate the random access request using the CBRA when the first random access resource is a contention-based resource.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: April 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Sumeeth Nagaraja, Tao Luo, Makesh Pravin John Wilson, Sony Akkarakaran, Juan Montojo, Shengbo Chen, Wooseok Nam, Xiao Feng Wang, Kaushik Chakraborty
  • Patent number: 10638483
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver may receive a beam switch command for a first link between the receiver and a transmitter, wherein the beam switch command is received via a second link between the receiver and the transmitter. The receiver may transmit an acknowledgement (ACK) corresponding to the beam switch command, wherein the ACK is transmitted via the second link. The receiver may perform a beam switch procedure on the first link based at least in part on transmitting the ACK via the second link. Numerous other aspects are provided.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: April 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Yan Zhou, Sumeeth Nagaraja, Makesh Pravin John Wilson, Tao Luo
  • Patent number: 10631159
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment (UE). The UE reports antenna capability information of the UE, the antenna capability information comprising identification information of each of one or more antenna subarrays and polarization information indicating at least one polarization supported by each of the one or more antenna subarrays. The UE further receives an indication to operate each of the one or more antenna subarrays with one or more of the at least one polarization and communicates according to the indication.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: April 21, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Kaushik Chakraborty, Sumeeth Nagaraja, Tao Luo, Sony Akkarakaran, Makesh Pravin John Wilson, Aitzaz Ahmad, Peter Gaal
  • Publication number: 20200120654
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive a downlink transmission from at least one beam of a set of beams. The set of beams may be associated with a multi-beam communication between the apparatus and a base station. The apparatus may select a beam, of the set of beams, to report beam related information associated with the at least one beam of the set of beams. The apparatus may report an indication that the beam is a selected beam.
    Type: Application
    Filed: December 13, 2019
    Publication date: April 16, 2020
    Inventors: Makesh Pravin JOHN WILSON, Tao Luo, Sony Akkarakaran, Sumeeth Nagaraja, Xiao Feng Wang, Kaushik Chakraborty, Wooseok Nam, Shengbo Chen
  • Patent number: 10602520
    Abstract: Certain aspects of the present disclosure provide techniques for switching control beams in multi-link systems using new radio (NR) technology multiple-input multiple-output (MIMO) techniques. A user equipment (UE) may obtain a configuration from a base station (BS) comprising at least one first pattern of beams to monitor when performing a beam recovery procedure, communicate using beamforming, with the BS, via an active transmit and receive beam pair, determine a beam failure of the active transmit and receive beam pair, and monitor the beams according to the first pattern in response to the beam failure.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: March 24, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Makesh Pravin John Wilson, Tao Luo, Sony Akkarakaran, Xiao Feng Wang, Sumeeth Nagaraja
  • Publication number: 20200084756
    Abstract: Aspects of the present disclosure relate to wireless communications and, more particularly, multi-link PDCCH monitoring. A UE may receive signaling configuring it to operate in at least one of a set of different modes of monitoring beam-pair links, wherein each beam-pair link comprises a transmit beam configured to be used by a base station (BS) for beamformed transmissions and a corresponding receive beam used by the UE. The UE may monitor at least two or more beam-pair links for downlink control channel transmissions based, at least in part, on the received signaling, and may transmit feedback to the BS based, at least in part, on the monitored beam-pair links.
    Type: Application
    Filed: November 15, 2019
    Publication date: March 12, 2020
    Inventors: Makesh Pravin JOHN WILSON, Tao LUO, Sony AKKARAKARAN, Xiao Feng WANG, Sumeeth NAGARAJA, Kaushik CHAKRABORTY, Wooseok NAM, Shengbo CHEN
  • Patent number: 10588102
    Abstract: Wireless communications systems and methods related to synchronization signal (SS) transmission coordination among base stations (BSs) and restricted SS measurements at user equipments (UEs) are provided. A first BS transmits a first SS burst in a first SS transmission period of a plurality of SS transmission periods. The first SS transmission period is designated to the first BS. A second SS transmission period of the plurality of SS transmission periods is designated to a second BS. The first SS transmission period and the second SS transmission period are different. The first BS receives, from a UE, a first signal in synchronization with the first SS burst. The first signal includes a SS measurement of the first SS burst.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: March 10, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Kaushik Chakraborty, Tao Luo, Xiaoxia Zhang, Sony Akkarakaran, Makesh Pravin John Wilson, Sumeeth Nagaraja, Wooseok Nam