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).

  • Patent number: 11317430
    Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive an information element (IE) that includes: a higher layer parameter that indicates a plurality of modulation and coding scheme (MCS) thresholds; and another higher layer parameter that includes a plurality of resource block (RB) thresholds. The UE may determine a time density of phase tracking reference signal (PT-RS) to be transmitted by the UE based at least partly on a comparison between a MCS and the plurality of MCS thresholds. The UE may determine a frequency density of the PT-RS based at least partly on a comparison between a scheduled bandwidth and the plurality of RB thresholds. The UE may encode the PT-RS for transmission in accordance with the determined time density and the determined frequency density.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: April 26, 2022
    Assignee: Apple Inc.
    Inventors: Ajit Nimbalker, Alexei Davydov, Gang Xiong, Yushu Zhang
  • Publication number: 20220123765
    Abstract: Techniques discussed herein can facilitate polar coding and decoding for NR (New Radio) systems. Various embodiments discussed herein can employ polar coding and/or decoding at UE(s) (User Equipment(s)) and/or gNB(s) (next generation Node B(s)). One example embodiment employable at a UE can comprise processing circuitry configured to determine one or more thresholds for code block segmentation, wherein the one or more thresholds for code block segmentation comprise one or more of a payload threshold (Kseg) or a code rate threshold (Rseg); determine to perform code block segmentation based on the one or more thresholds and at least one of a current payload (K) of an information block or a current code rate (R) for the information block; segment the information block into a plurality of segments; and encode each segment of the plurality of segments via a polar encoder with a code size (N).
    Type: Application
    Filed: December 27, 2021
    Publication date: April 21, 2022
    Inventors: Dmitry Dikarev, Grigory Ermolaev, Ajit Nimbalker, Alexei Davydov, Ashwin Chandrasekaran, Sathishkumar Chellakuhigounder Kulandaivel
  • Publication number: 20220116875
    Abstract: Embodiments include methods for a user equipment (UE) to perform different operations based on detection of wake-up signal (WUS) transmissions from a network node in a radio access network (RAN). Such methods include determining whether a WUS transmission, from the network node, is detected during a particular WUS monitoring occasion (WMO). Such methods also include, based on determining that the WUS is detected during the particular WMO, performing one or more first operations during a first time period associated with the particular WMO; and based on determining that the WUS is not detected during the particular WMO, performing one or more second operations during a second time period. Various first and second operations can be performed, with the first and second operations differing in some manner. The first and second time periods can be the same or different. Embodiments also include complementary methods performed by a network node.
    Type: Application
    Filed: January 8, 2020
    Publication date: April 14, 2022
    Inventors: Ajit Nimbalker, Ravikiran Nory, Sina Maleki, Pramod Jacob Mathecken
  • Publication number: 20220116976
    Abstract: Methods and apparatuses are disclosed for secondary cell (Scell) management. In one embodiment, a wireless device is configured to receive a first command, via a Medium Access Control, MAC, layer signaling, the first command being an activation/deactivation command; perform a first set of actions for at least one Scell of one or more Scells based at least in part on the first command; receive a second command, via a physical downlink control channel, PDCCH, signaling on a primary cell, Pcell; and perform a second set of actions for the at least one Scell of the one or more Scells based at least in part on the second command, the first set of actions and the second set of actions including starting or stopping PDCCH monitoring for the at least one Scell. In one embodiment, a network node is configured to send the first command and the second command.
    Type: Application
    Filed: January 10, 2020
    Publication date: April 14, 2022
    Inventors: Ravikiran NORY, Ajit NIMBALKER
  • Publication number: 20220104232
    Abstract: Embodiments include methods, performed by a user equipment (UE), for receiving downlink (DL) data from a serving cell in a wireless network. Such methods include determining whether a total number of coded bits for all transport blocks (TBs) scheduled for the UE, by the wireless network in the serving cell during a plurality of consecutive symbols, is greater than a limited-buffer rate-matching (LBRM) threshold. The LBRM threshold is based on a maximum number of transmission layers, X, associated with the UE for the serving cell. Such methods also include receiving and decoding a plurality of TBs, comprising one or more DL data messages, when the total number of coded bits for all TBs (including the plurality of TBs) scheduled for the UE is not greater than the LBRM threshold. Other embodiments include complementary methods performed by network nodes, and UEs and network nodes configured to perform such methods.
    Type: Application
    Filed: February 12, 2020
    Publication date: March 31, 2022
    Inventor: Ajit Nimbalker
  • Publication number: 20220094473
    Abstract: There is disclosed a method of operating a communication device in a wireless communication network. The method includes communicating utilising data signaling based on a code block size and/or code block length, the code block size and/or code block length being based on at least a first indication associated to a received control information message. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 24, 2022
    Inventors: Ajit Nimbalker, Erik Eriksson, Robert Baldemair, Stefan Parkvall
  • Publication number: 20220078879
    Abstract: A method by a wireless device (510) configured for Discontinuous Reception, DRX, includes monitoring (1602) for a first wakeup signal, WUS, during a first WUS monitoring occasion. In response to the wireless device detecting the first WUS during the first WUS monitoring occasion, the wireless device monitors (1604) a downlink control channel during a downlink control channel monitoring occasion associated with the detected first WUS and abstains (1604) from monitoring fora second WUS in a second WUS monitoring occasion based on a condition.
    Type: Application
    Filed: December 23, 2019
    Publication date: March 10, 2022
    Inventors: Ajit Nimbalker, Pramod Jacob Mathecken, Ravikiran Nory, Ali Nader, Sina Maleki, Andres Reial
  • Publication number: 20220060279
    Abstract: Provided herein are method and apparatus for channel coding in the fifth Generation (5G) New Radio (NR) system. An embodiment provides an apparatus for a Next Generation NodeB (gNB), including circuitry, which is configured to: generate Downlink Control Information (DCI) payload for a NR-Physical Downlink Control Channel (NR-PDCCH); attach Cyclic Redundancy Check (CRC) to the DCI payload; mask the CRC with an Radio Network Temporary Identifier (RNTI) using a bitwise modulus 2 addition operation, wherein the number of bits for the RNTI is different from the number of bits for the CRC; and perform polar encoding for the DCI payload with the masked CRC.
    Type: Application
    Filed: August 31, 2021
    Publication date: February 24, 2022
    Inventors: Debdeep Chatterjee, Hong He, Gang Xiong, Ajit Nimbalker, Dmitry Dikarev, Yongjun Kwak
  • Patent number: 11259356
    Abstract: Methods and structures are disclosed which facilitate handling discontinuous reception (DRX) in Long Term Evolution (LTE) type communication signal reception and transmission using one carrier, such as a licensed carrier, and another carrier, such as an unlicensed carrier, in the presence of other transmissions using the other carrier.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: February 22, 2022
    Assignee: Motorola Mobility LLC
    Inventors: Murali Narasimha, Vijay Nangia, Ajit Nimbalker, Ravikiran Nory
  • Publication number: 20220053529
    Abstract: Techniques are provided for fast adaptation of DRX settings used by a UE via L1 signaling in order to reduce power consumption by the UE. Generally, the UE is configured for DRX by a higher layer protocol (e.g. RRC), and L1 signaling can be used to control or adapt the DRX by the UE. For example, the L1 signaling may be used to adjust or override 5 operation of an IAT. The downlink control information may be sent in an existing downlink control message or in a new downlink control message. The downlink control message may be a scheduling message scheduling a data transmission to or from the UE.
    Type: Application
    Filed: September 24, 2019
    Publication date: February 17, 2022
    Inventors: Ajit Nimbalker, Ravikiran Nory, Yutao Sui
  • Patent number: 11252668
    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: Grant
    Filed: December 8, 2020
    Date of Patent: February 15, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ravikiran Nory, Ajit Nimbalker, Sorour Falahati, Havish Koorapaty
  • Publication number: 20220039008
    Abstract: Techniques for fast adaptation of PDCCH monitoring by a UE via L1 signaling in order to reduce power consumption by the UE are disclosed. A base station sends first configuration information to a user equipment (UE) via higher layer signaling (e.g. RRC) to configure downlink control channel monitoring by the UE. Thereafter, the base station may send downlink control information to the UE via L1 signaling to adapt the PDCCH monitoring by the 6 UE. The downlink control information may temporarily override or modify the parameters for PDCCH monitoring set by higher layers. The downlink control information may be send in an existing downlink control message or in a new downlink control message.
    Type: Application
    Filed: September 24, 2019
    Publication date: February 3, 2022
    Inventors: Ajit Nimbalker, Ravikiran Nory, Yutao Sui
  • Patent number: 11233529
    Abstract: One example aspect of the techniques discussed herein is a User Equipment (UE) comprising processing circuitry configured to determine one or more thresholds for code block segmentation, wherein the one or more thresholds for code block segmentation comprise one or more of a payload threshold (Kseg) or a code rate threshold (Rseg); determine to perform code block segmentation based on the one or more thresholds and at least one of a current payload (K) of an information block or a current code rate (R) for the information block; segment the information block into a plurality of segments; and encode each segment of the plurality of segments via a polar encoder with a code size (N).
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: January 25, 2022
    Assignee: Apple Inc.
    Inventors: Dmitry Dikarev, Grigory Ermolaev, Ajit Nimbalker, Alexei Davydov, Ashwin Chandrasekaran, Sathishkumar Chellakuhigounder Kulandaivel
  • Patent number: 11223374
    Abstract: Described is an apparatus of an Evolved Node-B (eNB) operable to communicate with a User Equipment (UE) on a wireless network. The apparatus may comprise a first circuitry, a second circuitry, a third circuitry, and a fourth circuitry. The first circuitry may be operable to identify a data block having a number N1 of bits. The second circuitry may be operable to determine a number N2 of filler bits based on a set of one or more parameters and the N1 of bits of the data block. The third circuitry may be operable to pad the data block with the N2 filler bits to form a padded data block having a number N3 of bits. The fourth circuitry may be operable to encode the N3 bits of the padded data block to form a polar codeword having a number N4 of bits.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 11, 2022
    Assignee: Apple Inc.
    Inventors: Ajit Nimbalker, Dmitry Dikarev, Grigory Ermolaev
  • Publication number: 20210400699
    Abstract: Systems and methods are disclosed herein for transitioning between different scheduling delay assumptions. In some embodiments, a method performed by a wireless device comprises monitoring, during a first slot, for a downlink control channel comprising downlink control information that schedules a transmission for the wireless device with an assumption of a first scheduling delay that is equal to or exceeds a first value. The method further comprises determining that the wireless device is to switch from the assumption of the first scheduling delay to an assumption of a second scheduling delay that is equal to or exceeds a second value that is less than the first value. The method further comprises monitoring, during one or more later slots that occur after the first slot, for a downlink control channel comprising downlink control information that schedules a transmission for the wireless device with the assumption of the second scheduling delay.
    Type: Application
    Filed: September 28, 2019
    Publication date: December 23, 2021
    Inventors: Ravikiran Nory, Ajit Nimbalker, Havish Koorapaty, Andres Reial, Yutao Sui
  • Publication number: 20210400683
    Abstract: The present disclosure described systems and methods for providing OTT services to a UE. An exemplary OTT-providing host computer includes a transceiver, a processor, and memory collective configured to provide the OTT service by initiating transmission of user data to the UE. To transmit the user data from the host computer to the wireless device, a network node sends a first control message for assigning a PDSCH, the first control message comprising a first MCS indication as described. The network node sends to the wireless device a second control message for assigning a PDSCH, the second control message comprising a second MCS indication as described. The network node transmits the user data thereafter.
    Type: Application
    Filed: August 27, 2021
    Publication date: December 23, 2021
    Inventors: Zhipeng Lin, Jingya Li, Robert Baldemair, Yufei Blankenship, Jung-Fu Cheng, Xingqin Lin, Ajit Nimbalker
  • Publication number: 20210385032
    Abstract: A base station can operate a first serving cell on a licensed carrier frequency and a second serving cell on an unlicensed carrier frequency. The base station can perform a listen before talk (LBT) on the unlicensed carrier frequency for a first time duration. The base station can determine that the unlicensed carrier frequency is free. The base station can transmit an activation command on the first serving cell for receipt by a UE, the activation command being configured to activate the UE to receive transmissions from the base station on the second serving cell. The base station can transmit after determining that the unlicensed carrier frequency is free, a reserve transmission on the unlicensed carrier frequency at least until the base station begins transmission of the activation command on the first serving cell.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 9, 2021
    Inventors: Ravikiran Nory, Vijay Nangia, Murali Narasimha, Ajit Nimbalker
  • Patent number: 11184056
    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: November 2, 2020
    Date of Patent: November 23, 2021
    Assignee: Apple Inc.
    Inventors: Dae Won Lee, Seunghee Han, Ajit Nimbalker, Alexei Davydov, Paul C. Wei, Dmitry Dikarev
  • Patent number: 11184903
    Abstract: According to certain embodiments, 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 shared downlink channel. The scaling factor indicates 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 the shared downlink channel. According to certain embodiments, a method performed by a wireless device comprises receiving a control message. The control message indicates at least a Modulation and Coding Scheme (MCS) and a scaling factor for a shared downlink 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.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: November 23, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng Lin, Robert Baldemair, Yufei Blankenship, Jung-Fu Cheng, Jingya Li, Xingqin Lin, Ajit Nimbalker
  • Publication number: 20210352661
    Abstract: There is disclosed a method of operating a transmitting radio node (10, 100) in a wireless communication network, the method comprising transmitting data signaling in a signaling time interval, wherein an integer number CB of code blocks of data are associated to an integer number BS of allocation units of the signaling time interval. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: May 5, 2020
    Publication date: November 11, 2021
    Inventors: Robert Baldemair, Erik Eriksson, Ajit Nimbalker, Stefan Parkvall