Patents by Inventor Kazuyoshi Uesaka

Kazuyoshi Uesaka 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: 20240080739
    Abstract: Embodiments described herein provide methods and apparatuses for performing one or more measurements of a neighbor cell during radio link monitoring, RLM. A method in a wireless device comprises detecting a radio link problem, RLP, on a serving cell operating in a first carrier frequency; responsive to detecting the RLP, determining a frequency relationship between the first carrier frequency and a second carrier frequency for performing the one or more measurements on the neighbor cell; and determining, based on the frequency relationship, one or more measurement occasions for performing the one or more measurements on the neighbor cell.
    Type: Application
    Filed: November 26, 2021
    Publication date: March 7, 2024
    Inventors: Jie Chen, Muhammad Ali Kazmi, Santhan Thangarasa, Ritesh Shreevastav, Kazuyoshi Uesaka, Liping Zhang, Emre Yavuz
  • Publication number: 20240072877
    Abstract: A method (1200) by a wireless device (110) operable to perform receive beam sweeping over a set of a plurality of receive beams includes receiving (1202), from a network node, assistance information. The wireless device determines (1204), based on the assistance information, a first subset of receive beams within the set of the plurality of receive beams. The wireless device performs (1206) at least one operation based on the first subset of receive beams.
    Type: Application
    Filed: January 13, 2022
    Publication date: February 29, 2024
    Inventors: Christopher CALLENDER, Muhammad Ali KAZMI, Kazuyoshi UESAKA, Thomas CHAPMAN, Joakim AXMON
  • Publication number: 20240057152
    Abstract: Methods performed by a wireless device and a base station for adapting maximum allowed Clear Channel Assessment (CCA) based on operational occasion periodicity are provided. In examples disclosed herein, a wireless device is configured to determine an operational occasion periodicity of a signal that is subject to CCA. Accordingly, the wireless device can determine an association at least between the determined operational occasion periodicity and a maximum number of allowed CCA failures for communicating the signal. The wireless device can then perform one or more operational tasks based on the determined maximum number of allowed CCA failures. By determining the maximum number of allowed CCA failures, the wireless device can obtain information about downlink CCA failures and use the obtained information for adapting measurements procedures in serving cell operational tasks.
    Type: Application
    Filed: October 2, 2020
    Publication date: February 15, 2024
    Inventors: Muhammad Kazmi, Kazuyoshi Uesaka, Iana Siomina, Santhan Thangarasa, Joakim Axmon, Imadur Rahman
  • Publication number: 20240048290
    Abstract: The present application generally relates to wireless communication technology. More particularly, the present application relates to a method and apparatus for scheduling delay associated with HARQ processes in LTE-MTC. The present application also relates to computer program product adapted for the same purpose. According to one embodiment, a method for scheduling delay associated with HARQ processes in LTE-MTC comprises: —a) in response to presence or non-presence of PUCCH repetition, invalid BL/CE DL subframe, invalid BL/CE UL subframe, and measurement gap, determining a HARQ-ACK scheduling counting strategy; and —b) scheduling a HARQ-ACK delay value in accordance with the HARQ-ACK scheduling counting strategy.
    Type: Application
    Filed: July 27, 2020
    Publication date: February 8, 2024
    Inventors: Liping Zhang, Gerardo Agni Medina Acosta, Ola Lundqvist, Jie Chen, Johan Bergman, Kazuyoshi Uesaka
  • Patent number: 11856430
    Abstract: A method, system and apparatus are disclosed. A network node configured to communicate with a wireless device (WD) is provided. The network node is configured to, and/or comprising a radio interface and/or comprising processing circuitry configured to: determine a radio link monitoring (RLM) state of a wireless device that is served by a first cell and configured to operate with at least a first operational mode and a second operation mode within an overlapping time, and schedule at least one signal associated with the wireless device based on the RLM state.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: December 26, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Muhammad Ali Kazmi, Florent Munier, Santhan Thangarasa, Zhenhua Zou, Kazuyoshi Uesaka
  • Publication number: 20230397282
    Abstract: A method performed by a communication device includes obtaining criteria associated with a first mode of operation and a second mode of operation of a Radio Link Procedure (RLP) to be performed by the communication device. The method further includes selecting one of the first mode of operation and the second mode of operation to perform the RLP based on the criteria. The method further includes performing the RLP according to the first mode of operation or the second mode of operation based on the selection.
    Type: Application
    Filed: October 22, 2021
    Publication date: December 7, 2023
    Inventors: Santhan THANGARASA, Muhammad Ali KAZMI, Kazuyoshi UESAKA
  • Publication number: 20230396302
    Abstract: A communication device configured to operate in a communications network that includes a network node can determine that the communication device will perform a radio link procedure (“RLP”) in a mode of operation. The communication device can further determine information associated with a channel monitoring pattern (“CMP”) based on determining that the communication device will perform the RLP in the mode of operation. The communication device can further monitor a channel between the network node and the communication device based on the information associated with the CMP.
    Type: Application
    Filed: October 22, 2021
    Publication date: December 7, 2023
    Inventors: Muhammad Ali KAZMI, Santhan THANGARASA, Kazuyoshi UESAKA, Sina MALEKI, Ali NADER
  • Patent number: 11838175
    Abstract: Systems and methods for determining and using a reference signal muting configuration are provided. A network can configure a muting configuration for a first reference signal in accordance with determining if the first reference signal is used by a wireless device for operating a channel. The first reference signal can be transmitted in accordance with the muting configuration and used by the wireless device to perform an operation.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: December 5, 2023
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Iana Siomina, Muhammad Kazmi, Kazuyoshi Uesaka
  • Publication number: 20230389018
    Abstract: Methods and apparatus for enabling 1024-constellation Quadrature Amplitude Modulation (1024-QAM) are disclosed herein. In one embodiment, a method comprises receiving information for configuring a UE to monitor a PDCCH according to two non-fallback DCI formats, and information for configuring the UE with higher-layer parameters indicating the enabling of a 1024-QAM MCS table for a serving cell. The method also comprises detecting a DCI format scheduling a PDSCH for the serving cell, wherein the DCI format comprises an MCS index; determining a transport block size (TBS) of the PDSCH using the MCS index and the 1024-QAM MCS table; determining a reference block size for LBRM for a transport block on the PDSCH based on a reference modulation order based on the higher-layer parameters; receiving the PDSCH on a Downlink (DL) Bandwidth Part (BWP); and decoding the PDSCH based on the determined TBS and the determined reference block size for LBRM.
    Type: Application
    Filed: October 22, 2021
    Publication date: November 30, 2023
    Inventors: Ajit Nimbalker, Kazuyoshi Uesaka
  • Publication number: 20230388924
    Abstract: A method, system and apparatus are disclosed. According to one or more embodiments, a wireless device is provided. The wireless device includes processing circuitry configured to enter a first mode for a plurality of serving cells of a power savings group, PSG, based at least on the plurality of serving cells meeting at least a first criterion, determine a first serving cell fails to meet at least a second criterion, revert to a second mode for the first serving cell based on the determination that the first serving cell fails to meet the at least second criterion, and revert to the second mode for the remaining serving cells of the plurality of serving cells based on the determination that the first serving cell fails to meet the at least second criterion.
    Type: Application
    Filed: October 13, 2021
    Publication date: November 30, 2023
    Inventors: Muhammad Ali KAZMI, Santhan THANGARASA, Kazuyoshi UESAKA
  • Publication number: 20230354453
    Abstract: Method for a user equipment, UE), to communicate with a wireless network via multiple cells. The method includes detecting (1210) failure of a first beam associated with a first cell of the plurality of cells and determining (1230) availability or unavailability of other beams, than the first beam, that are associated with the first cell. The method further includes transmitting (1280), to one of the multiple cells, a message indicating availability or unavailability of the other beams associated with the first cell. The message is transmitted within a first duration (1220) after detecting the failure of the first beam, the first duration based on a maximum time for determining availability of the other beams and on a periodicity of resources allocated for beam failure reporting in the cell where the message is transmitted. Other embodiments include complementary method for a network node, UE and network node configured to perform such method.
    Type: Application
    Filed: April 12, 2021
    Publication date: November 2, 2023
    Inventors: Kazuyoshi Uesaka, Muhammad Ali Kazmi, Santhan Thangarasa, Claes Tidestav
  • Publication number: 20230300655
    Abstract: Embodiments of the present disclosure provide methods and apparatus for performing a measurement associated to a resource. A method performed at a terminal device comprises determining (S101) whether a first condition or a second condition is met, based on a communication quality; and performing (S102) a measurement associated to a resource, when the first condition is met, or stopping (S103) the measurement associated to the resource, when the second condition is met. According to embodiments of the present disclosure, the measurement may be performed or stopped under a first condition or a second condition. The relevant time and power may be saved.
    Type: Application
    Filed: July 16, 2021
    Publication date: September 21, 2023
    Inventors: Santhan Thangarasa, Ritesh Shreevastav, Muhammad Ali Kazmi, Kazuyoshi Uesaka, Jie Chen, Liping Zhang, Emre Yavuz
  • Publication number: 20230239873
    Abstract: A method implemented by a user equipment (UE) in a communication network is provided. The method includes receiving, from a network node, a delay indicator that indicates a scheduling delay for Physical Downlink Shaved Channel, PDSCH, and the UE counts the scheduling delay for the PDSCH according to the received indicator.
    Type: Application
    Filed: July 30, 2021
    Publication date: July 27, 2023
    Inventors: Liping Zhang, Gerardo Agni Medina Acosta, Ola Lundqvist, Jie Chen, Johan Bergman, Kazuyoshi Uesaka
  • Patent number: 11700572
    Abstract: A system in which a wireless communication device (e.g. a NB-IoT device) can obtain assistance information from a location server which can help the WCD select the right target RAT. A method performed by a wireless communication device, the method comprising: receiving inter-Radio Access Technology (inter-RAT) assistance information; determining a RAT based on the received inter-RAT assistance information; and utilizing the determined RAT.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: July 11, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ritesh Shreevastav, Sara Modarres Razavi, Nicklas Johansson, Stefan Wänstedt, Emre Yavuz, Kazuyoshi Uesaka, Åke Busin, Andreas Höglund
  • Publication number: 20230127333
    Abstract: The present disclosure provides a method (100) in a network device. The method (100) includes: transmitting (110) Downlink Control Information, DCI, to a terminal device, the DCI containing information from which a TBS index is derivable. The BS index is usable to determine a TBS from a set of TBSs including TBSs usable with Quadrature Phase Shift Keying, QPSK, and TBSs usable with 16-Quadrature Amplitude Modulation, 16-QAM. When the DCI is for a Narrowband Physical Downlink Shared Channel, NPDSCH, the TBSs usable with 16-QAM are determinable by the terminal device based on a deployment mode.
    Type: Application
    Filed: February 26, 2021
    Publication date: April 27, 2023
    Inventors: Gerardo Agni MEDINA ACOSTA, Kazuyoshi UESAKA, Jie CHEN, Yuan WANG, Bela RATHONYI
  • Patent number: 11637680
    Abstract: Methods and apparatuses are disclosed for communicating to a wireless device (WD) a DL-to-UL frequency offset (or frequency shift) that may need to be applied. For example, a method implemented in a wireless device (WD) is provided. The method comprises: receiving, from the network node, an indication of a frequency offset; and applying the received frequency offset; wherein the WD is configured to operate on a narrow-band Internet of Things (NB-IoT) carrier in a New Radio (NR) carrier.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: April 25, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yi-Pin Eric Wang, Gerardo Agni Medina Acosta, Johan Bergman, Olof Liberg, Kazuyoshi Uesaka, Yutao Sui, Talha Khan
  • Publication number: 20230105175
    Abstract: A method, system and apparatus are disclosed. A network node configured to communicate with a wireless device (WD) is provided. The network node is configured to, and/or comprising a radio interface and/or comprising processing circuitry configured to: determine a radio link monitoring (RLM) state of a wireless device that is served by a first cell and configured to operate with at least a first operational mode and a second operation mode within an overlapping time, and schedule at least one signal associated with the wireless device based on the RLM state.
    Type: Application
    Filed: November 17, 2022
    Publication date: April 6, 2023
    Inventors: Muhammad Ali KAZMI, Florent MUNIER, Santhan THANGARASA, Zhenhua ZOU, Kazuyoshi UESAKA
  • Publication number: 20230085425
    Abstract: A method, system and apparatus are disclosed for L 1-SINR measurement procedure based on measurement restrictions. In one embodiment, a wireless device (WD) is configured to determine a number of samples for a Layer 1 signal-to-interference-p lus-noise ratio, L1-SINR, measurement, the number of samples being based at least in part on at least one measurement restriction parameter; determine a measurement period for the L 1 -SINR measurement based at least in part on the determined number of samples; and perform the L1-SINR measurement on at least one channel measurement resource and at least one interference measurement resource, the L1-SINR measurement being based at least in part on the determined number of samples and the measurement period. In one embodiment, a network node is configured to send a configuration comprising at least one measurement restriction parameter to the WD, the measurement restriction parameter associated with a L1-SINR measurement.
    Type: Application
    Filed: February 9, 2021
    Publication date: March 16, 2023
    Inventors: Kazuyoshi UESAKA, Muhammad Ali KAZMI, Santhan THANGARASA
  • Publication number: 20230060444
    Abstract: A method by a wireless device includes obtaining (1202) scheduling information indicating at least one transmission occasion in which a system information message is transmitted for a cell during a system information transmission periodicity. The wireless device receives (1204) the system information message based on the scheduling information.
    Type: Application
    Filed: February 12, 2021
    Publication date: March 2, 2023
    Inventors: Kazuyoshi Uesaka, Muhammad Ali Kazmi, Santhan Thangarasa, Christopher Callender
  • Patent number: 11582001
    Abstract: Apparatuses and methods for band scanning in lean carrier operation are disclosed. In one embodiment, a method for a network node includes identifying at least one time period for transmitting a reference signal over a full cell bandwidth in lean earner operation, and transmitting a reference signal according to a bandwidth pattern. The bandwidth pattern is based at least in part on the identified at least one time period.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: February 14, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Santhan Thangarasa, Muhammad Kazmi, Torgny Palenius, Kazuyoshi Uesaka