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).

  • Rate matching using low-density parity-check codes
    Patent number: 10999010
    Abstract: Technology for a transmitter operable to perform data transmissions using low density parity check (LDPC) codes is disclosed. The transmitter can determine soft buffer information (Nsoft) for a receiver. The transmitter can determine a soft buffer partition per HARQ process (NIR) for the UE. The transmitter can obtain, for a transport block, a number of code block segments (C). The transmitter can select a shift size value (z). The transmitter can determine an amount of soft buffer available for the code block segments (Ncb) based on NIR, C, and z. The transmitter can encode the code block segments based on an LDPC coding scheme to obtain encoded parity bits. The transmitter can select a subset of the encoded parity bits based on the determined amount of soft buffer associated with the code block segments.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: May 4, 2021
    Assignee: APPLE INC.
    Inventors: Ajit Nimbalker, Tao Xu
  • Methods of limited buffer rate-matching (LBRM), pre-emption, and sidelink synchronization in new radio (NR) systems
    Patent number: 10979988
    Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may attempt to decode sidelink synchronization signals (SLSSs) received on component carriers (CCs) of a carrier aggregation. In one configuration, synchronization resources for SLSS transmissions may be aligned across the CCs at subframe boundaries in time, restricted to a portion of the CCs, and restricted to a same sub-frame. The UE may, for multiple CCs, determine a priority level for the CC based on indicators in the SLSSs received on the CC. The UE may select, from the CCs on which one or more SLSSs are decoded, the CC for which the determined priority level is highest. The UE may determine a reference timing for sidelink communication based on the one or more SLSSs received on the selected CC.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: April 13, 2021
    Assignee: Apple Inc.
    Inventors: Ajit Nimbalker, Debdeep Chatterjee, Jeongho Jeon, Fatemeh Hamidi-Sepehr, Sergey Panteleev, Gang Xiong, Alexey Vladimirovich Khoryaev, Mikhail Shilov, Sergey Sosnin, Andrey Chervyakov
  • Determining resources for uplink control information on physical uplink shared channel and physical uplink control channel with frequency hopping
    Patent number: 10980008
    Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with an Evolved Node-B (eNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to allocate a first set of Resource Elements (REs) for a set of Uplink Control Information (UCI) types corresponding with a first set of frequency resources. The first circuitry may also be operable to allocate a second set of REs for the set of UCI types corresponding with a second set of frequency resources. The second circuitry may be operable to prepare one or more Physical Uplink Shared Channel (PUSCH) transmissions comprising the first set of REs and the second set of REs. A number of REs in the first set of REs may be different than a number of REs in the second set of REs.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: April 13, 2021
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Yushu Zhang, Ajit Nimbalker, Joonyoung Cho
  • Scheduling and hybrid automatic repeat request operation for carrier aggregation with mixed numerologies
    Patent number: 10966236
    Abstract: An apparatus of a base station, system and method. The apparatus includes a memory and processing circuitry configured to: determine a physical downlink control channel (PDCCH) on a first component carrier; encode a first signal to be transmitted on the PDCCH, the first signal including downlink control information (DCI) on resources for a second signal to be transmitted on a second component carrier, wherein the DCI is based on a predetermined numerology, and wherein respective numerologies of the first component carrier and the second component carrier are different from one another. The processing circuitry is further to cause transmission of the first signal on the PDCCH, wherein a receiver of the second signal is to process the second signal based on the control information in the first signal.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: March 30, 2021
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Hong He, Ajit Nimbalker, Joonyoung Cho, Dae Won Lee
  • Determination of an advanced physical uplink channel resource
    Patent number: 10966283
    Abstract: Technology for a user equipment (UE) using a self-contained time division duplex (TDD) subframe to communicate with an eNodeB within a wireless communication network is disclosed. The UE can determine, at the UE, an advanced physical uplink control channel (xPUCCH) resource index to designate one or more physical resources for transmission of the xPUCCH, wherein the one or more physical resources are multiplexed using at least one or more of frequency division multiplexing (FDM), code division multiplexing (CDM), or combination thereof. The UE can signal a transceiver of the UE to transmit to the eNodeB up link control information (UCI) using the one or more physical resources designated by the xPUCCH resource index.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 30, 2021
    Assignee: APPLE INC.
    Inventors: Gang Xiong, Hong He, Ajit Nimbalker, Joonyoung Cho, Jong-Kae Fwu
  • Radio Network Node, User Equipment and Methods Performed in a Wireless Communication Network
    Publication number: 20210092681
    Abstract: Embodiments herein relate to a method performed by a user equipment, UE (10), for communicating in a wireless communication network. The UE (10) receives a wake-up signal with a multibit indication from a radio network node (12), wherein the multibit indication comprises a first bit indicating to start or not to start, for a first cell, an on-duration timer at one or more of the next occurrence of an on-duration, and a second bit indicating to apply dormancy or non-dormancy behavior on a second cell at the next occurrence of an on-duration for the second cell. The UE (10) further performs an action related to the wake-up signal taking the received multibit indication into account.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Ravikiran Nory, Ajit Nimbalker, Sorour Falahati, Havish Koorapaty
  • NR peak rate and transport block size
    Patent number: 10958392
    Abstract: According to certain embodiments, a method is disclosed for operating a user equipment. The method comprises transmitting or receiving a transmission on at least one of the component carriers, wherein the at least one component carrier is associated with a slot duration that corresponds to a numerology of the component carrier. The transmitting or receiving on the at least one of the component carriers is based on a relation between a number of information bits on the at least one of the component carriers over one or more reference slot durations and a reference data rate.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: March 23, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ajit Nimbalker, Jung-Fu Cheng, Ravikiran Nory
  • Reserved resource elements for hybrid automatic repeat request bits
    Patent number: 10952186
    Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for transmitting uplink control information in new radio (NR) applications. Various embodiments describe how to calculate a number of reserved HARQ-ACK resource elements. Other embodiments may be described and claimed.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: March 16, 2021
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Joonyoung Cho, Yushu Zhang, Ajit Nimbalker, Lopamudra Kundu
  • Methods and apparatus for transmitting in resource blocks
    Patent number: 10952203
    Abstract: A resource assignment indication can be received at a device. The resource assignment indication indicates a set of resource blocks for a data transmission. A determination can be made as to whether the set of resource blocks includes a first set of resource blocks and a second set of resource blocks or the set of resource blocks includes only the first set of resource blocks. In response to determining the set of resource blocks include only the first set of resource blocks, the data transmission can be transmitted in only the first set of resource blocks. In response to determining the set of resource blocks include both the first set of resource blocks and the second set of resource blocks, the data transmission can be transmitted in at least one of the first set of resource blocks and the second set of resource blocks.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: March 16, 2021
    Assignee: Motorola Mobility LLC
    Inventors: Ajit Nimbalker, Hossein Bagheri, Vijay Nangia, Ravikiran Nory
  • Power boosting and transport block size (TBS) design in a new radio (NR) system
    Patent number: 10939321
    Abstract: Technology for a user equipment (UE) operable to determine a transport block size (TBS) is disclosed. The UE can determine a number of assigned resource elements (REs) in one or more symbols for a transport block. The UE can determine a reference number of REs per physical resource block (PRB) in the transport block based on a reference number of REs for the transport block corresponding to each PRB and an assigned number of PRBs for the transport block. The UE can determine a TBS for the transport block based at least on the reference number of REs per PRB in the transport block. The UE can encode information in a selected transport block for transmission via a physical uplink shared channel (PUSCH) to a Next Generation NodeB (gNB) in accordance with the TBS determined at the UE.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 2, 2021
    Assignee: APPLE INC.
    Inventors: Alexei Davydov, Seung Hee Han, Debdeep Chatterjee, Hong He, Gregory V. Morozov, Ajit Nimbalker, Fatemeh Hamidi-Sepehr, Dae Won Lee, Yongjun Kwak
  • Apparatus, system and method to implement reserved resources for forward compatibility in new radio (NR) networks
    Patent number: 10939501
    Abstract: An apparatus of a New Radio (NR) User Equipment (UE), a method and system. The apparatus includes a radio frequency (RF) interface and one or more processors coupled to the RF interface and configured to: decode a communication from a NR evolved Node B (gNodeB), the communication including information on configuration parameters of reserved physical resources confined within a bandwidth part (BWP) of a wireless channel, the configuration parameters including time and frequency resources; based on the communication, determine the reserved physical resources as being allocated reserved physical resources; and process signals received on, or for communication on, only physical resources not overlapping the allocated reserved physical resources.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: March 2, 2021
    Assignee: Intel IP Corporation
    Inventors: Debdeep Chatterjee, Dae Won Lee, Ajit Nimbalker, Gang Xiong
  • Generation Node-B (GNB), User Equipment (UE) and Methods for Interleaving in Multiple-Input Multiple-Output (MIMO) Arrangements
    Publication number: 20210050887
    Abstract: Embodiments of a Generation Node-B (gNB), User Equipment (UE) and methods for communication are generally described herein. The gNB may map data symbols to resource elements (REs) of virtual resource blocks (VRBs). The gNB may interleave the data symbols, on a per-VRB basis, to spatial layers of a multi-layer multiple-input multiple-output (MIMO) transmission. The data symbols may be interleaved based on different interleave patterns of VRB indexes for the spatial layers. The gNB may map the interleaved data symbols of the spatial layers to REs of physical resource blocks (PRBs) for orthogonal frequency division multiplexing (OFDM) transmission.
    Type: Application
    Filed: November 2, 2020
    Publication date: February 18, 2021
    Inventors: Dae Won Lee, Seunghee Han, Ajit Nimbalker, Alexei Davydov, Paul C. Wei, Dmitry Dikarev
  • Apparatus, system and method to implement reserved resources for forward compatibility in new radio (NR) networks
    Patent number: 10904948
    Abstract: An apparatus of a New Radio (NR) User Equipment (UE), a method and system. The apparatus includes a radio frequency (RF) interface and one or more processors coupled to the RF interface and configured to: decode a communication from a NR evolved Node B (gNodeB), the communication including information on configuration parameters of reserved physical resources confined within a bandwidth part (BWP) of a wireless channel, the configuration parameters including time and frequency resources; based on the communication, determine the reserved physical resources as being allocated reserved physical resources; and process signals received on, or for communication on, only physical resources not overlapping the allocated reserved physical resources.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: January 26, 2021
    Assignee: Intel IP Corporation
    Inventors: Debdeep Chatterjee, Dae Won Lee, Ajit Nimbalker, Gang Xiong
  • METHOD AND APPARATUS FOR SIGNALING APERIODIC CHANNEL STATE INDICATION REFERENCE SIGNALS FOR LTE OPERATION
    Publication number: 20200403750
    Abstract: First aperiodic zero power channel state information reference signal configuration information of a serving cell can be transmitted. Second aperiodic zero power channel state information reference signal configuration information of the serving cell can be transmitted. Downlink control information can be transmitted on a physical control channel in a subframe of the serving cell. The downlink control information can include an aperiodic zero power channel state information reference signal indicator bit field that indicates a selection of one of at least the first aperiodic zero power channel state information reference signal configuration, the second aperiodic zero power channel state information reference signal configuration, and no aperiodic zero power channel state information reference signal in the subframe.
    Type: Application
    Filed: September 8, 2020
    Publication date: December 24, 2020
    Inventors: Ajit Nimbalker, Vijay Nangia, Murali Narasimha, Ravikiran Nory
  • PADDING BITS FOR CSI REPORT CODING
    Publication number: 20200382239
    Abstract: Described herein are methods and apparatus for jointly encoding components of a a channel state information (CSI) report into a single codeword. Padding bits are added to equalize payload size for different CRI/RI cases and yo allow encoding of all parts of CSI into one codeword without payload ambiguity.
    Type: Application
    Filed: August 6, 2020
    Publication date: December 3, 2020
    Inventors: Dmitry Dikarev, Victor Sergeev, Ajit Nimbalker, Alexei Vladimirovich Davydov, Gregory Ermolaev
  • Methods and systems for performance enhancement of downlink shared channels
    Patent number: 10856308
    Abstract: A method performed by a wireless device (WD) comprises receiving a control message. The control message indicating at least a Modulation and Coding Scheme (MCS) and a scaling factor for a downlink shared channel. The scaling factor indicates a value less than 1. The method further comprises determining a transport block size (TBS) based on the MCS and the scaling factor indicated in the control message. A method performed by a network node comprises indicating in a control message at least a Modulation and Coding Scheme (MCS) and a scaling factor for a downlink shared channel. The scaling factor indicating a value less than 1. The method further comprises sending the control message to a User Equipment (UE), the control message enabling determination of a Transport Block Size (TBS) for a shared downlink channel.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: December 1, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng Lin, Robert Baldemair, Yufei Blankenship, Jung-Fu Cheng, Jingya Li, Xingqin Lin, Ajit Nimbalker
  • NR Peak Rate and Transport Block Size
    Publication number: 20200358571
    Abstract: According to certain embodiments, a method is disclosed for operating a user equipment. The method comprises transmitting or receiving a transmission on at least one of the component carriers, wherein the at least one component carrier is associated with a slot duration that corresponds to a numerology of the component carrier. The transmitting or receiving on the at least one of the component carriers is based on a relation between a number of information bits on the at least one of the component carriers over one or more reference slot durations and a reference data rate.
    Type: Application
    Filed: June 24, 2020
    Publication date: November 12, 2020
    Inventors: Ajit Nimbalker, Jung-Fu Cheng, Ravikiran Nory
  • DYNAMIC RESOURCE ALLOCATIONS AND TRANSMISSION SCHEMES FOR XPUCCH (5G PUCCH)
    Publication number: 20200351043
    Abstract: Disclosed are embodiments related to implementing a dynamic resource allocation and transmission scheme for a fifth generation (5G) physical uplink control channel (xPUCCH) in a 5G system. In particular, embodiments include mechanisms to dynamically allocate resources for the transmission of xPUCCH, and resource mapping schemes for 5G systems supporting more than one symbol allocated for an xPUCCH transmission.
    Type: Application
    Filed: March 5, 2020
    Publication date: November 5, 2020
    Inventors: Gang Xiong, Hong He, Ralf Bendlin, Ajit Nimbalker, Jong-Kae Fwu
  • Generation node-B (GNB), user equipment (UE) and methods for interleaving in multiple-input multiple-output (MIMO) arrangements
    Patent number: 10826571
    Abstract: Embodiments of a Generation Node-B (gNB), User Equipment (UE) and methods for communication are generally described herein. The gNB may map data symbols to resource elements (REs) of virtual resource blocks (VRBs). The gNB may interleave the data symbols, on a per-VRB basis, to spatial layers of a multi-layer multiple-input multiple-output (MIMO) transmission. The data symbols may be interleaved based on different interleave patterns of VRB indexes for the spatial layers. The gNB may map the interleaved data symbols of the spatial layers to REs of physical resource blocks (PRBs) for orthogonal frequency division multiplexing (OFDM) transmission.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: November 3, 2020
    Assignee: Apple Inc.
    Inventors: Dae Won Lee, Seunghee Han, Ajit Nimbalker, Alexei Davydov, Paul C. Wei, Dmitry Dikarev
  • TRANSPORT BLOCK DECODING OPERATION FOR HYBRID TRANSMISSION TIME INTERVAL (TTI) LENGTHS IN WIRELESS COMMUNICATION SYSTEMS
    Publication number: 20200328848
    Abstract: Methods and architectures to reduce latency in next generation wireless networks such as LTE and/or new radio (NR), includes adjusting hybrid automatic repeat request (HARQ) techniques to selectively skip acknowledgements (ACKs) in various embodiments, and to configure one or more code block groups (CBG) designating code blocks for retransmission according to a code block group index bitmap present in received downlink control information (DCI).
    Type: Application
    Filed: April 27, 2018
    Publication date: October 15, 2020
    Inventors: Hong He, Alexei Davydov, Gang Xiong, Hwan-Joon Kwon, Jie Cui, Debdeep Chatterjee, Ajit Nimbalker, Joonyoung Cho, Dae Won Lee