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: 10674527
    Abstract: Method performed by a first network node (111) for handling scheduling of wireless devices. The first network node (111) obtains information about a first type of time resource used by HD-FDD wireless devices (151). The first network node (111) also obtains information about a second type of time resource not used by the HD-FDD wireless devices (151) due to a transition at the HD-FDD wireless devices (151) between UL and DL. The first network node (111) schedules a first wireless device out of FD-FDD wireless devices (152) during the second type of time resource, based on the obtained information about the second type. The first network node (111) decides whether or not to schedule a second wireless device out of the FD-FDD wireless devices (152) during the first type of time resource, based on the obtained information about the first type, and further based on whether first conditions are met.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: June 2, 2020
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Muhammad Kazmi, Santhan Thangarasa, Iana Siomina
  • Patent number: 10674437
    Abstract: Methods and apparatuses disclosed herein involve network-side operations that include adjusting scheduling or reporting times of a wireless device, to accommodate acquisition of neighbor-cell System Information, SI, by the device while operating under conditions of enhanced coverage with respect to the neighbor cell. Further disclosed are network-side operations that include determining the repetition level to be used for transmitting SI, for providing enhanced coverage to one or more wireless devices. Additionally, disclosed device-side operations include configuring the autonomous gaps used in a SI acquisition procedure, in dependence on the number of repetitions determined to be needed for acquiring the SI of a neighbor cell, while the device is operating under enhanced coverage with respect to the neighbor cell.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: June 2, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Santhan Thangarasa, Joakim Axmon, Muhammad Kazmi, Kazuyoshi Uesaka
  • Publication number: 20200163006
    Abstract: The wireless apparatus and network node disclosed herein facilitate the selection and use of one of multiple RATs for communications between the wireless apparatus and the network node. The selected RAT provides a lower energy consumption at the wireless apparatus for the communications with the network node. To that end, the wireless apparatus selects between at least two RATs, e.g., first and second RATs, where the first and second RATs are both coordinated by a network node in communication with the wireless apparatus, and where a system bandwidth of the second RAT and a system bandwidth of the first RAT are both comprised within a third system bandwidth of a third RAT coordinated by the network node.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 21, 2020
    Inventors: Bengt Lindoff, Joakim Axmon, Muhammad Kazmi, Santhan Thangarasa
  • Publication number: 20200137601
    Abstract: According to certain embodiments, a method in a wireless device includes receiving, from a first network node, first configuration information related to a first type of discovery reference signals. Second configuration information related to a second type of discovery reference signals is received from a second network node. A variable cell identification delay or variable measurement delay is determined on the basis of the first configuration information and second configuration information. At least one first measurement is performed on a discovery reference signal of the first type. At least one second measurement is performed on a discovery reference signal of a second type. One or more operational tasks is performed based on the at least one first measurement and the at least one second measurement.
    Type: Application
    Filed: March 23, 2018
    Publication date: April 30, 2020
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Iana SIOMINA, Muhammad KAZMI, Santhan THANGARASA
  • Publication number: 20200136792
    Abstract: Embodiments disclosed herein relate to a method in a wireless communication device that operates in an enhanced coverage mode, the enhanced coverage mode comprising sequential repetition of messages sent from the wireless communication device to a network node. An example method includes: receiving a Timing Advance Command TAC from the network node; and adapting a time at which the TAC is applied, wherein a time difference between the time at which the TAC is applied and a time at which the TAC is received shall be greater than or equal to a specified time depending on a type of the used Radio Access Technology, such that application of the TAC does not occur during a period after a first subframe of a repeated uplink transmission till the end of the repeated uplink transmission.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 30, 2020
    Inventors: Joakim Axmon, Johan Bergman, Dandan Hao, Muhammad Kazmi, Santhan Thangarasa
  • Publication number: 20200120671
    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: Application
    Filed: December 16, 2019
    Publication date: April 16, 2020
    Inventors: Joakim Axmon, Dandan Hao, Muhammad Kazmi, Santhan Thangarasa
  • Patent number: 10624049
    Abstract: A device-to-device (D2D) user equipment (UE) apparatus identifies at least first and second synchronization reference (SyncRef) UEs each satisfying a predetermined selection/reselection criterion with respect to the D2D UE, determines a measurement period in which to perform one or more measurements on the identified at least first and second SyncRef UEs, and performs the one or more measurements on each of the identified at least first and second SyncRef UEs during the determined measurement period.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: April 14, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Santhan Thangarasa, Muhammad Kazmi
  • Patent number: 10588072
    Abstract: The wireless apparatus and network node disclosed herein facilitate the selection and use of one of multiple RATs for communications between the wireless apparatus and the network node. The selected RAT provides a lower energy consumption at the wireless apparatus for the communications with the network node. To that end, the wireless apparatus selects between at least two RATs, e.g., first and second RATs, where the first and second RATs are both coordinated by a network node in communication with the wireless apparatus, and where a system bandwidth of the second RAT and a system bandwidth of the first RAT are both comprised within a third system bandwidth of a third RAT coordinated by the network node.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: March 10, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bengt Lindoff, Joakim Axmon, Muhammad Kazmi, Santhan Thangarasa
  • Patent number: 10555297
    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: August 31, 2016
    Date of Patent: February 4, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joakim Axmon, Dandan Hao, Muhammad Kazmi, Santhan Thangarasa
  • Publication number: 20200037186
    Abstract: Embodiments herein relate to a method performed by a wireless device (10) for enabling the wireless device (10) to perform RLM of a cell (11) of a network node (12) in a wireless communication network (1). The wireless device (10) sends to a network node (12) serving the wireless device (10), e.g. the network node providing the cell, an indication indicating at least one recommended repetition level and/or recommended aggregation level, of at least one radio signal and/or control channel.
    Type: Application
    Filed: October 2, 2017
    Publication date: January 30, 2020
    Inventors: Santhan Thangarasa, Muhammad Kazmi, Iana Siomina, Kazuyoshi Uesaka
  • Publication number: 20200036471
    Abstract: According to certain embodiments, a user equipment (UE) (110), comprises an interface (710) configured to receive one or more symbols at the start of a first transmission time interval (TTI) of a channel. The UE further comprises processing circuitry (720) operably coupled to the interface (710). The processing circuitry (720) configured to obtain a signal quality estimate based on at least one of the one or more symbols; compare the signal quality estimate to a signal quality threshold; and determine, based on the comparison, whether to process the channel in the first TTI.
    Type: Application
    Filed: September 29, 2017
    Publication date: January 30, 2020
    Inventors: Kazuyoshi Uesaka, Muhammad KAZMI, Santhan THANGARASA
  • Patent number: 10541802
    Abstract: Embodiments disclosed herein relate to a method in a wireless communication device that operates in an enhanced coverage mode, the enhanced coverage mode comprising sequential repetition of messages sent from the wireless communication device to a network node. An example method includes: receiving a Timing Advance Command TAC from the network node; and adapting a time at which the TAC is applied, wherein a time difference between the time at which the TAC is applied and a time at which the TAC is received shall be greater than or equal to a specified time depending on a type of the used Radio Access Technology, such that application of the TAC does not occur during a period after a first subframe of a repeated uplink transmission till the end of the repeated uplink transmission.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 21, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joakim Axmon, Johan Bergman, Dandan Hao, Muhammad Kazmi, Santhan Thangarasa
  • Publication number: 20200015097
    Abstract: According to certain embodiments, a method in a wireless device includes determining a current coverage enhancement, CE, mode of the wireless device with respect to a first cell and determining an estimated signal quality of the wireless device with respect to the first cell. 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 greater than or equal to an upper threshold, the wireless devices continues to operate in the normal CE mode. If the current CE mode is an enhanced CE mode and the estimated signal quality of the wireless device with respect to the first cell is greater than or equal to a lower threshold and less than the upper threshold, the wireless device continues to operate in the enhanced CE mode.
    Type: Application
    Filed: February 1, 2018
    Publication date: January 9, 2020
    Inventors: Muhammad KAZMI, Iana SIOMINA, Santhan THANGARASA
  • Publication number: 20190387409
    Abstract: Method performed by a base station (111). The base station (111) determines (203) a reporting configuration for a UE (130) to report power headroom to the base station (111). The determining (203) is based on a power class of the UE (130). 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 (130). The base station (111) receives (204), from the UE (130), 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 (130) is also disclosed. The UE (130) obtains (302) the reporting configuration, and transmits (304), to the base station (111), the reportable value.
    Type: Application
    Filed: December 20, 2017
    Publication date: December 19, 2019
    Inventors: Santhan Thangarasa, Joakim Axmon, Muhammad Kazmi
  • Publication number: 20190380017
    Abstract: In one aspect there is provided a method for reporting measurements from a wireless device to a network node in a wireless communication network. In some embodiments, the method includes: obtaining at least one measurement configuration for performing at least one measurement; obtaining an uplink (UL) transmission configuration; performing at least one measurement to obtain at least one measurement result; and reporting the at least one measurement result to the network node by applying the obtained UL transmission configuration. The UL transmission configuration comprises at least one parameter associated with a repetition level of an uplink signal to be used by the wireless device for reporting at least one measurement result to the network node, the repetition level of the uplink signal being at least partially dependent on a type of measurement and/or event for which the at least one measurement is performed.
    Type: Application
    Filed: February 2, 2018
    Publication date: December 12, 2019
    Inventors: Santhan THANGARASA, Muhammad KAZMI, lana SIOMINA
  • Publication number: 20190364601
    Abstract: A method in a User Equipment (UE) is provided. The method comprises: obtaining a request to transmit a random access message on a non-anchor carrier to a network node; determining a coverage enhancement (CE) level of the UE with respect to the non-anchor carrier based on a first procedure for the non-anchor carrier, the first procedure for the non-anchor carrier being based on a second procedure associated with an anchor carrier; determining radio resources associated with the determined CE level for transmitting the random access message; transmitting to the network node the random access message on the non-anchor carrier using the determined radio resources. A UE for performing this method is also provided.
    Type: Application
    Filed: January 24, 2018
    Publication date: November 28, 2019
    Inventors: Muhammad KAZMI, Santhan THANGARASA, Joakim AXMON
  • Patent number: 10477516
    Abstract: The present disclosure relates to methods and devices for device-to-device, D2D, operation in out-of-network coverage, ONC scenarios. More particularly the disclosure pertains to a method performed in a wireless device, for obtaining resources for D2D operation in ONC. The method comprises obtaining S1 a first set of resources for D2D operation in ONC on at least one licensed carrier and obtaining S2 a second set of resources for D2D operation in ONC on at least one un-licensed carrier. The method further comprises selecting S3 one of the first and second sets of resources for D2D operation in ONC, based on information relating to a location of the wireless device. The disclosure further relates to methods in a network node for providing information about the sets of resources to a wireless device and to corresponding devices and computer programs.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: November 12, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gabor Fodor, Muhammad Kazmi, Santhan Thangarasa
  • Publication number: 20190327754
    Abstract: Method performed by a first network node (111) for handling scheduling of wireless devices. The first network node (111) obtains information about a first type of time resource used by HD-FDD wireless devices (151). The first network node (111) also obtains information about a second type of time resource not used by the HD-FDD wireless devices (151) due to a transition at the HD-FDD wireless devices (151) between UL and DL. The first network node (111) schedules a first wireless device out of FD-FDD wireless devices (152) during the second type of time resource, based on the obtained information about the second type. The first network node (111) decides whether or not to schedule a second wireless device out of the FD-FDD wireless devices (152) during the first type of time resource, based on the obtained information about the first type, and further based on whether first conditions are met.
    Type: Application
    Filed: May 20, 2019
    Publication date: October 24, 2019
    Inventors: Muhammad KAZMI, Santhan THANGARASA, Iana Siomina
  • Publication number: 20190319723
    Abstract: A method, wireless device, and network node for providing notification of a status of an intelligent traffic system (ITS) sidelink in a communication network. In one embodiment, the method includes obtaining channel quality measurement data of the ITS sidelink, assigning a sidelink status based on the obtained channel quality measurement data (S120), and providing a feedback indicator based on the sidelink status (S130).
    Type: Application
    Filed: December 21, 2016
    Publication date: October 17, 2019
    Inventors: Joakim Axmon, Muhammad Kazmi, Santhan Thangarasa
  • Patent number: 10419962
    Abstract: A method of a wireless device arranged to perform measurements of signals wirelessly transmitted from at least one network node and being associated with a first cell and a second cell, respectively. The signals to be measured include signals of a first type and a second type. If the signals of the first type associated with the first cell and the second cell occur simultaneously, the signal of the first type associated with the first cell and the signal of the second type associated with the second cell are measured. If the signals of the first type associated with the first cell and the second cell do not occur simultaneously, the signal of the first type associated with the first cell and the signal of the first type associated with the second cell are measured.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: September 17, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Joakim Axmon, Muhammad Kazmi, Santhan Thangarasa