Patents by Inventor Santhan Thangarasa

Santhan Thangarasa 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: 11937109
    Abstract: According to certain embodiments, a method for use in a wireless device comprise determining a coverage level with respect to a serving cell, selecting one of a plurality of configurations for sharing gaps between intra- and inter-frequency measurements, and performing one or more measurements according to the selected configuration for sharing gaps. The configuration for sharing gaps is selected based at least in part on the determined coverage level. For example, certain embodiments use the determined coverage level to select one of a plurality of tables, wherein each table comprises one or more schemes that indicate how to share gaps between intra- and inter-frequency measurements.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: March 19, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Santhan Thangarasa, Muhammad Kazmi
  • Publication number: 20240080801
    Abstract: A method (1200) by a wireless device (110) includes receiving (1202), from a network node (160), a paging early indicator, PEI, configuration that includes an indication of a mapping of a PEI to a plurality of paging occasions, POs. The wireless device receives (1204) the PEI from the network node. Based on the mapping of the PEI to the plurality of POs, the wireless device monitors (1206) a shared channel during the plurality of POs.
    Type: Application
    Filed: January 14, 2022
    Publication date: March 7, 2024
    Inventors: Niklas Andgart, Ali Nader, Sina Maleki, Andres Reial, Ajit Nimbalker, Santhan Thangarasa
  • 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: 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
  • Patent number: 11889438
    Abstract: A method (300) performed in a network node is disclosed for enabling ProSe operation for a wireless device on a non-serving carrier. The network node serves the wireless device on a cell on a serving carrier. The method (300) comprises: determining (310) whether a target cell on a non-serving serving carrier, on which the wireless device is to perform ProSe operation, is known or unknown to the wireless device, and configuring (320, 330) the wireless device with a first gap configuration for the case that the target cell on the non-serving carrier is known to the wireless device, and with a second gap configuration for the case that the target cell on the non-serving carrier is unknown to the wireless device. A method in a wireless device, a network node, a wireless device, computer programs and computer program products are also disclosed.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: January 30, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Santhan Thangarasa, Muhammad Kazmi
  • Patent number: 11864166
    Abstract: One or more embodiments herein relate to a method for an uplink transmission timing adjustment in a wireless communication device served by a network node and configured to operate in a coverage enhancement mode. The coverage enhancement mode comprises a repetitive transmission of a first uplink signal during a first repetition period. The method comprises determining a change in a downlink timing (210), determining whether the first repetition period is ongoing (240); and in response to the change in the downlink timing and the first repetition period being ongoing, performing an adjustment of an uplink transmission timing outside the first repetition period (260).
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: January 2, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joakim Axmon, Dandan Hao, Muhammad Kazmi, Santhan Thangarasa
  • 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
  • Patent number: 11849395
    Abstract: A method, network node and wireless device for determining wake up signal (WUS) repetitions are disclosed. According to one aspect, a method implemented in a wireless device, WD, includes determining information about a transmit antenna configuration of a network node; determining information about an activity level of the WD; determining a number of wake up signal, WUS, repetitions based on the transmit antenna configuration and the activity level; and receiving a WUS signal, the WUS signal having at least the determined number of WUS repetitions. A method implemented in a network node includes obtaining information about an activity level of a wireless device, WD; selecting a transmit antenna configuration; determining a number of wake up signal, WUS, repetitions based on the transmit antenna configuration and the activity level; and transmitting a WUS signal, the WUS signal having at least the determined number of WUS repetitions.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: December 19, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Santhan Thangarasa, Muhammad Kazmi, Hazhir Shokri Razaghi, Sandeep Narayanan Kadan Veedu
  • 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
  • Publication number: 20230397011
    Abstract: Method performed by a base station. The base station determines a reporting configuration for a UE to report power headroom to the base station. The determining is based on a power class of the UE. The reporting configuration comprises a plurality of reportable values. Each reportable value corresponds to a respective range of values of a power headroom. The respective range each reportable value corresponds to is a function of a power class of the UE. The base station receives, from the UE, a reportable value from the plurality of reportable values. The respective range of values of the power headroom indicated by the received reportable value is based on the determined reporting configuration. A method performed by the UE is also disclosed. The UE obtains the reporting configuration, and transmits, to the base station, the reportable value.
    Type: Application
    Filed: August 14, 2023
    Publication date: December 7, 2023
    Inventors: Santhan Thangarasa, Joakim Axmon, Muhammad Kazmi
  • 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: 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
  • Patent number: 11722962
    Abstract: A method of receiving a wake-up signal from a network node is performed by a wireless device. The method includes determining provided coverage enhancement level with respect to the network node, determining an activity level of the wireless device, determining a required wake-up signal reception effort, wherein the wake-up signal reception effort includes an amount of the redundancy of the wake-up signal being exploited at reception, based at least the coverage enhancement level and the activity level, and receiving a wake-up signal based on the determined reception effort. A wireless device having a wake-up receiver capable of receiving a wake-up signal from a network node and a computer program for implementing the method in the wireless device are also disclosed.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: August 8, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Magnus Åström, Muhammad Kazmi, Yutao Sui, Santhan Thangarasa
  • Patent number: 11696352
    Abstract: A method in a network node (115) is disclosed for managing interruptions to Wide Area Network, WAN, operation of a wireless device (110), wherein the wireless device provides Proximity Services, ProSe, over at least two carriers (305, 310). The method comprises determining (804) a configuration of the wireless device for ProSe operation such that an aggregated interruption to the WAN operation of the wireless device is below an allowed interruption value.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: July 4, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Santhan Thangarasa, Muhammad Kazmi
  • Patent number: 11647400
    Abstract: A method in a wireless device includes receiving, from a network node, an indication of a current coverage enhancement, CE, mode of the wireless device with respect to a first cell. The method also includes determining an estimated signal quality of the wireless device with resect to the first cell and if the current CE mode is a normal CE mode and the estimated signal quality of the wireless device with respect to the first cell is one of greater than and equal to a lower threshold and less than an upper threshold, adapting at least one requirement to meet enhanced CE mode requirements corresponding to an enhanced CE mode.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: May 9, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Muhammad Kazmi, Iana Siomina, Santhan Thangarasa
  • Publication number: 20230113017
    Abstract: A method performed by a Network Node (NN) for handling Device to Device (D2D) operation between a first D2D User Equipment (UE) and a second D2D UE in a radio communications network is provided. The NN obtains data related to propagation delay in one or more cells served by the NN. The propagation delay is related to any one or more out of: the first D2D UE, the second D2D UE, other D2D UEs, and cellular UEs. The NN then determines whether or not to configure a number of Guard Period (GP) symbols within a switching time resource, as Sidelink (SL) radio resources for the D2D operation. The determining is based on one or more criteria applied to the obtained data related to the propagation delay.
    Type: Application
    Filed: March 31, 2020
    Publication date: April 13, 2023
    Inventors: Haris CELIK, Muhammad KAZMI, Santhan THANGARASA
  • 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
  • Patent number: 11622285
    Abstract: A wireless device selects, from among at least first and second measurement modes in which measurements are respectively performed on cells belonging to first and second carriers, one or more measurement modes in which to perform a measurement. The one or more measurement modes are selected based on whether criteria is met for relaxed monitoring of a neighbor cell, and on whether the wireless device is configured to perform a positioning measurement. The wireless device performs the measurement in the one or more selected measurement modes.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: April 4, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Santhan Thangarasa, Johan Bergman, Muhammad Kazmi, Gerardo Agni Medina Acosta, Ritesh Shreevastav