Patents by Inventor Keeth Saliya JAYASINGHE

Keeth Saliya JAYASINGHE 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: 11653367
    Abstract: In accordance with example embodiments of the invention there is at least a method and apparatus to perform determining, by a first network device in a communication network, allocation information for an availability of resources in the communication network; and sending, by the network device, to a second network device the allocation information for use in at least one of simultaneous transmission by the second network device to the first network device and a third device or simultaneous reception by the second network device from the first network device and a third device of at least one operation associated with the allocation information for allocation of the resources to the third device in the in the communication network.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: May 16, 2023
    Assignee: Nokia Technologies Oy
    Inventors: Mark Cudak, Kevin Wanuga, Juha Sakari Korhonen, Ilkka Keskitalo, Keeth Saliya Jayasinghe Laddu, Axel Mueller
  • Publication number: 20230124792
    Abstract: There is provided a method to operate a first apparatus (100) of a cellular radio communications network, wherein the method comprises: receiving a plurality of PUCCH, Physical Uplink Control Channel, configuration parameters; and transmitting UCI, Uplink Control Information, via a PUCCH, wherein the PUCCH is configured according to at least one of the received plurality of PUCCH configuration parameters.
    Type: Application
    Filed: February 24, 2020
    Publication date: April 20, 2023
    Inventors: Matha Deghel, Keeth Saliya Jayasinghe Laddu, Sami Hakola, Klaus Hugl
  • Patent number: 11632750
    Abstract: An method includes determining to perform inter-cell multi-downlink control information (multi-DCI) based multi-transmission reception point (multi-TRP) operation for a user device based on the following: receiving, by the user device from a network node, transmission configuration index (TCI) states for a plurality of control resource sets (CORESETS), wherein the TCI states for the plurality of CORESETs are associated with a plurality of cells having different physical cell identities (PCIs) or associated with a plurality of cell groups; and determining, by the user device, that at least one of the following conditions is present: 1) a multi-DCI based multi-TRP-related high layer parameter has been configured to the user device; 2) a default mode of multi-TRP operation has been configured to the user device; or 3) the user device has received control information indicating physical downlink shared channel (PDSCH) TCI state activations corresponding to two different CORESETPoolIndex values; and, performing in
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: April 18, 2023
    Assignee: Nokia Technologies Oy
    Inventors: Keeth Saliya Jayasinghe Laddu, Timo Koskela
  • Publication number: 20230083061
    Abstract: According to an aspect, there is disclosed a method that includes aligning, by a radio access network node wirelessly connected to at least two parent nodes and to a child node, an uplink reception timing associated with the child node with a downlink reception timing associated with a parent node of the at least two parent nodes.
    Type: Application
    Filed: February 14, 2020
    Publication date: March 16, 2023
    Inventors: Juha Sakari KORHONEN, Keeth Saliya Jayasinghe LADDU, Ilkka Antero KESKITALO
  • Publication number: 20230079311
    Abstract: There is provided a method to operate a downstream IAB, Integrated Access and Backhaul, node of an IAB network, is provided, wherein the method comprises: receiving a first radio resource configuration that indicates a use of radio resources by the upstream IAB node and by at least one radio node served by the upstream IAB node; determining a second radio resource configuration or the downstream IAB node in dependence on the first radio resource configuration; and communication with at least one radio node, which is served by the downstream IAB node, via radio resources according to the second radio resource configuration.
    Type: Application
    Filed: February 14, 2020
    Publication date: March 16, 2023
    Inventors: Keeth Saliya JAYASINGHE LADDU, Ilkka KESKITALO, Juha S. KORHONEN
  • Patent number: 11601920
    Abstract: Systems, methods, apparatuses, and computer program products for multiple transmission-reception point (multi-TRP) physical uplink control channel (PUCCH) scheme determination are provided. One method may include receiving, at a user equipment, at least one of an indication or configuration comprising information relating to one or more multi-TRP PUCCH schemes. The method may also include determining a multi-TRP scheme to apply for an uplink control information (UCI) transmission using at least one of the indication or the configuration, and transmitting the UCI on PUCCH according to the determined multi-TRP PUCCH scheme.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: March 7, 2023
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Matha Deghel, Keeth Saliya Jayasinghe Laddu
  • Publication number: 20230037605
    Abstract: Methods and apparatus, including computer program products, are provided for control channel monitoring. In some example embodiments, there may be provided a method that includes receiving, at the user equipment, an indication of a codepoint activation, wherein the codepoint activation indicates that a transmission configuration indicator state being activated is associated with a second physical cell identifier different from a first physical cell identifier of a serving cell of the user equipment; and in response to the transmission configuration indicator state being activated in association with the second physical cell identifier, suspending control channel monitoring of at least one set of core resources associated with the first physical cell identifier of the serving cell of the user equipment. Related systems, methods, and articles of manufacture are also disclosed.
    Type: Application
    Filed: August 5, 2022
    Publication date: February 9, 2023
    Inventors: Timo KOSKELA, Sami-Jukka Hakola, Keeth Saliya Jayasinghe Laddu, Mihai Enescu, Juha Pekka Karjalainen
  • Publication number: 20230040312
    Abstract: To meet different latency requirements a solution for a system having one or more apparatuses using a first type of relaying or a second type of relaying, the first type requiring more processing time at an apparatus than the second type, is disclosed. In the solution a type of relaying for a child apparatus is determined at least based on one or more of a latency requirement and feedback information on channel; and transmissions to or from child apparatuses are scheduled at least according to a determined type of relaying, wherein transmissions using the first type of relaying are scheduled to take place in the time domain of a transmission slot after transmissions using the second type of relaying; and transmissions to or from the child apparatus are processed according to the determined type of relaying.
    Type: Application
    Filed: November 4, 2020
    Publication date: February 9, 2023
    Inventors: Keeth Saliya Jayasinghe LADDU, Laddu Praneeth JAYASINGHE
  • Publication number: 20230042071
    Abstract: In accordance with example embodiments of the invention there is at least a method and apparatus to perform determining, by a network device of a communication network, that to monitor physical downlink control channel candidates of two or more control resource sets of the communication network, wherein the two or more control resource sets are using different QCL-TypeD; and selecting at least two control resource sets of the two or more control resource sets with different QCL-TypeD for monitoring at least two of the physical downlink control channel candidates.
    Type: Application
    Filed: July 20, 2022
    Publication date: February 9, 2023
    Inventors: Amir Mehdi AHMADIAN TEHRANI, Keeth Saliya JAYASINGHE LADDU, Matha DEGHEL, Youngsoo YUK
  • Publication number: 20230033736
    Abstract: Systems, methods, apparatuses, and computer program products for physical layer security by pseudo-random layer mapping.
    Type: Application
    Filed: September 30, 2019
    Publication date: February 2, 2023
    Inventors: Philippe SEHIER, Keeth Saliya Jayasinghe LADDU, Luca ROSE, Fanny JARDEL
  • Patent number: 11558148
    Abstract: An apparatus is provided which comprises at least one processor, at least one memory including computer program code, and the at least one processor, with the at least one memory and the computer program code, being arranged to cause the apparatus to at least perform generating a code block including information bits and parity bits, the parity bits being generated by performing a cyclic redundancy check on the information bits, determining the number of parity bits used in generating the code block based on an applied linear error correcting code base graph and/or based on the number of the information bits, and encoding the code block by using the applied linear error correcting code base graph.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: January 17, 2023
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Keeth Saliya Jayasinghe Laddu, Yi Zhang, Jingyuan Sun
  • Publication number: 20220399950
    Abstract: According to an example aspect of the present invention, there is provided a method including determining at least one possible downlink control information for the user equipment to schedule the data transmission, checking a scrambled version of the at least one possible downlink control information to determine whether the scrambled version of the at least one possible downlink control information defines valid downlink control information, transmitting the scrambled version of the at least one possible downlink control information and scheduling the data transmission based on the at least one possible downlink control information and if it is determined that the scrambled version of the at least one possible downlink control information defines valid downlink control information, scheduling the jamming transmission based on the scrambled version of the at least one possible downlink control information.
    Type: Application
    Filed: September 30, 2019
    Publication date: December 15, 2022
    Inventor: Keeth Saliya Jayasinghe LADDU
  • Publication number: 20220400458
    Abstract: Implementations of advanced frequency synchronization in a mobile integrated access backhaul deployment are disclosed. An apparatus includes at least one processor, and at least one non-transitory memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to perform: estimate a change in a propagation delay at two time instants, measure a time period of the two time instants using a local clock of a network node, wherein the two time instants correspond to a known timing of a received signal, subtract the change of the propagation delay from the measured time period, calculate a difference between the subtracted time period and a known timing of the received signal; and convert the difference to a frequency offset value to synchronize downlink transmission frequency between the network node and a parent node.
    Type: Application
    Filed: December 1, 2020
    Publication date: December 15, 2022
    Inventors: Ilkka Antero KESKITALO, Esa Tapani TIIROLA, Esa Mikael MALKAMĂ„KI, Juha Sakari KORHONEN, Keeth Saliya Jayasinghe LADDU
  • Publication number: 20220393752
    Abstract: A method of operating a radio network element includes receiving user equipment (UE) capability information indicating panel combinations of a multi panel UE (MP-UE), each including at least one antenna panel from among a plurality of antenna panels of the MP-UE; receiving signal strength information corresponding to plurality of transmission reception points (TRPs); based on the signal strength information, determining a plurality of TRP sets corresponding to the plurality of panel combinations, respectively; and generating a plurality of control resource set (CORESET) configurations corresponding to the plurality of panel combinations, respectively, wherein, for each panel combination, the TRP set corresponding to the panel combination indicates at least one TRP from among the plurality of TRPs, and the CORESET configuration corresponding to the panel combination defines one or more CORESETs to be used by the at least one TRP to provide downlink (DL) transmissions to the MP-UE via the panel combination.
    Type: Application
    Filed: September 21, 2020
    Publication date: December 8, 2022
    Inventor: Keeth Saliya Jayasinghe LADDU
  • Publication number: 20220386304
    Abstract: An apparatus, method and computer program is provided comprising: determining a plurality of candidate data transmission slots, wherein each candidate data transmission slot has an index and said plurality of candidate data transmission slots are arranged in an order; setting an index of a current candidate data transmission slot of the plurality to be an incremental increase of an index of a preceding candidate data transmission slot of the plurality in the event that a timing gap between a start of said current candidate data transmission slot and a start of a subsequent candidate data transmission slot of the plurality is greater than a threshold; and setting the index of the current candidate data transmission slot to be equal to the index of the preceding candidate data transmission slot of the plurality in the event that the timing gap is not greater than said threshold.
    Type: Application
    Filed: September 16, 2020
    Publication date: December 1, 2022
    Inventors: Nhat-Quang NHAN, Keeth Saliya JAYASINGHE LADDU, Zexian LI
  • Patent number: 11503592
    Abstract: Systems, methods, apparatuses, and computer program products for the synchronization and timing of IAB nodes are provided. One method may include determining, at a parent node, a resource configuration and using the determined resource configuration to set a timing advance (TA) mode with two offsets comprising a first offset to be used with time division multiplexing (TDM) and a second offset to be used with at least one of spatial division multiplexing (SDM) or frequency division multiplexing (FDM). The method may also include transmitting a command, to an integrated access and backhaul (IAB) node, to start adjusting mobile termination (MT) uplink (UL) transmission (Tx) timing based on the resource configuration and the timing advance (TA).
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: November 15, 2022
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Juha S. Korhonen, Keeth Saliya Jayasinghe Laddu, Ilkka Keskitalo, Esa Tiirola
  • Publication number: 20220360412
    Abstract: An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: determine (1006) whether at least one transport block has been successfully delivered to another apparatus; and determine (1008, 1010, 1012) whether to use the at least one transport block to scramble at least one subsequent transport block based on whether the at least one transport block has been successfully delivered to the apparatus.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 10, 2022
    Inventors: Keeth Saliya Jayasinghe LADDU, Luca ROSE, Fanny JARDEL, Philippe SEHIER
  • Publication number: 20220337300
    Abstract: Systems, methods, apparatuses, and computer program products for channel state information (CSI) configuration and reporting for multi-transmission reception point (TRP) operation are provided. One method may include configuring a user equipment (UE), by a network node, to provide independent channel state information (CSI) feedback per transmission reception point (TRP) and to indicate additional information. The configuring of the UE may include configuring the UE with at least one of several reporting options for generating a combined channel state information (CSI) report.
    Type: Application
    Filed: September 23, 2020
    Publication date: October 20, 2022
    Inventors: Youngsoo YUK, Keeth Saliya Jayasinghe LADDU, Nitin MANGALVEDHE
  • Publication number: 20220338002
    Abstract: According to an example aspect of the present invention, there is provided a method comprising, transmitting to a second wireless node timing information for security key adoption and information indicative of a third wireless node, transmitting to the third wireless node a message to estimate a channel between the second wireless node and the third wireless node, the message to estimate the channel comprising information indicative of the second wireless node and channel measurement resource information associated with the second wireless node, obtaining a security key generated on the basis of channel estimation information based on estimation of the channel by the third wireless node, and applying the security key for encrypted data transmission between the first wireless node and the second wireless node.
    Type: Application
    Filed: October 4, 2019
    Publication date: October 20, 2022
    Inventors: Keeth Saliya Jayasinghe LADDU, Laddu Praneeth JAYASINGHE
  • Publication number: 20220329304
    Abstract: Techniques of performing CSI reporting include identifying a cluster of TRPs sharing common information in their CSI and transmitting a complete CSI report to a selected TRP of the cluster while transmitting partial CSIs reports to other TRPs of the cluster. Along these lines, in an example implementation, a UE receives a CSI-RS from a network, with the CSI-RS carrying a plurality of reference symbols from a plurality of TRPs. Based on the plurality of symbols, the UE generates TRP data representing CSI feedback for each of the TRPs. From the CSI feedback, the UE identifies, as a cluster, a subset of the TRPs that share common information within the CSI feedback. The UE then sends first identification data identifying the subset of the TRPs that make up the cluster to the network.
    Type: Application
    Filed: September 4, 2019
    Publication date: October 13, 2022
    Inventors: Rana AHMED SALEM, Mihai ENESCU, Youngsoo YUK, Keeth Saliya Jayasinghe LADDU, Salah Eddine HAJRI