Patents by Inventor Debasish Sarkar

Debasish Sarkar 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: 20230345317
    Abstract: A system, method and non-transitory computer readable media for facilitating adaptive anchor layer mobility in a 5G NSA implementation. In one arrangement, a handover modulation criterion involving relevant trigger parametrics of an anchor cell node serving a UE and a target cell node may be compared against a tunable threshold parameter indicative of the effect of the target cell on the anchor cell quality. If the handover modulation criterion does not exceed the tunable threshold value, a quality degradation prediction with respect to the UE may be executed to estimate a likelihood of service failure for the UE. Responsive to determining that the likelihood of service failure does not exceed a probability threshold, handover of the UE to the target cell may be suppressed.
    Type: Application
    Filed: December 31, 2020
    Publication date: October 26, 2023
    Inventors: Debasish Sarkar, Surajit Mondal, Shikha Singh, Ayan Sen, Aruna Mani
  • Publication number: 20230308968
    Abstract: A network node in a telecommunications network can measure a first throughput associated with a first communication channel between the network node and a communication device. The first communication channel can include an active communication channel that uses a first radio access technology, RAT. The network node can further predict a second throughput associated with a second communication channel between the network node and the communication device if communication associated with the communication device was switched to the second communication channel. The second communication channel can include an inactive communication channel that uses a second RAT. The network node can further determine to switch the communication associated with the communication device to the second communication channel based on the first throughput and the second throughput.
    Type: Application
    Filed: August 17, 2020
    Publication date: September 28, 2023
    Inventors: Debasish Sarkar, Surajjit Mondal, Aruna Mani, Shikha Singh, Ayan Sen
  • Publication number: 20230262520
    Abstract: A computer-implemented method for adaptive beam management for load balancing communication devices over ports used for a channel state information reference signal, CSI-RS, in a telecommunications network. The method includes predicting from a machine learning model predicted channel quality indicator, CQI, values for target beam candidates for offloading one or more communication devices. The method includes identifying a target beam candidate having a highest CQI value from the predicted CQI values. The method includes deciding to offload the one or more communication devices from an offload beam candidate to the target beam candidate when a difference between the highest CQI value of the target beam candidate and a CQI value of the offload beam candidate is greater than or equal to a threshold value. The method includes initiating offloading of the one or more communication devices from the offload beam candidate to the target beam candidate.
    Type: Application
    Filed: October 1, 2020
    Publication date: August 17, 2023
    Inventors: Debasish SARKAR, Ayan SEN, Surajit MONDAL, Shikha SINGH
  • Publication number: 20220286863
    Abstract: A method performed by a random access channel planning node. The random access channel planning node may identify a coverage overlap area of a candidate cell with each of the neighboring cells of the candidate cell in a radio access network. The random access channel planning node may use the identified coverage overlap area to determine a root sequence index for the candidate cell having a minimum root sequence index collision factor. The random access channel planning node may initiate a command to the candidate cell to set the root sequence index for the candidate cell to the determined root sequence index having the minimum root sequence index collision factor.
    Type: Application
    Filed: August 23, 2019
    Publication date: September 8, 2022
    Inventors: Debasish SARKAR, Surajit MONDAL, Ayan SEN
  • Publication number: 20210352529
    Abstract: A method performed by a network node for handling load balancing of at least one User Equipment (UE) is provided. The at least one UE has performed a respective handover to a Second Frequency, F2, carrier provided by the network node in a communication within a wireless communication network. The network node evaluates (201) whether or not each of the at least one UE has resided at the F2 carrier for a respective time period which is below a first threshold value. The network node decides (202) that one or more first UEs out of the at least one UE shall be put through a further evaluation for load balancing when any one or more of the first UEs have resided at the F2 carrier for a respective time period which is below the first threshold value. The network node decides (203) that each one or more second UEs out of the at least one UE is a candidate for load balancing when any one or more of the second UEs have resided at the F2 carrier for a respective time period which is not below the first threshold value.
    Type: Application
    Filed: September 19, 2018
    Publication date: November 11, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ayan SEN, Somnath DUTTA, Shikha SINGH, Debasish SARKAR
  • Patent number: 10893420
    Abstract: A management node and method at the management node provide automatic PCI allocation to sites in a RAN by iteratively identifying a selected cell site to be allocated a PCI group. From a group of cell sites in the RAN that have already been allocated a PCI group, the method obtains, for each PCI group, a closest neighbor site having a least distance from the selected cell site. The method allocates a PCI associated with a closest neighbor site based on whether any of the closest neighbor sites meet criteria including, with respect to the selected cell site, a respective distance greater than a cluster distance, a lack of coverage overlap between any respective sectors, a tier relationship that is two or greater and a respective distance greater than an average cell footprint, and a lack of sectors that face any sectors of the given cell site.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: January 12, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Debasish Sarkar, Surajit Mondal, Ayan Sen
  • Patent number: 10667141
    Abstract: A method, system and computer for determining placement of at least one antenna of customer premises equipment in a fixed wireless access network are disclosed. According to one aspect, a method includes generating a map of signal strength for each of a plurality of possible antenna locations among one or more buildings. The method further includes identifying a percentage of a building having a level of wireless network coverage. The method also includes identifying a location of an antenna based on the map of signal strength and the identified percentage.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 26, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Debasish Sarkar, Svemir Polchert, Ayan Sen, Shikha Singh
  • Patent number: 10517011
    Abstract: Systems and methods are disclosed herein that relate to automated measurement and analysis of end-to-end performance of Voice over Long Term Evolution (VoLTE) service and, in some embodiments, automated network optimization for VoLTE service performance improvement. In some embodiments, a method of operation of a network node to perform automated end-to-end analysis of VoLTE sessions is provided. In some embodiments, the method of operation of the network node comprises correlating control and data plane messages across a nodes and interfaces in a VoLTE network to thereby provide data representative of end-to-end message flows for a plurality of VoLTE sessions. The method of operation further comprises configuring one or more nodes in the VoLTE network based on the data representative of the end-to-end message flows for the plurality of VoLTE sessions. In this manner, automated network optimization for VoLTE service performance improvement can be provided.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: December 24, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Surajit Mondal, Debasish Sarkar, Ayan Sen, Jaspal Singh, Narendra Kumar Singh
  • Publication number: 20190268780
    Abstract: A method, system and computer for determining placement of at least one antenna of customer premises equipment in a fixed wireless access network are disclosed. According to one aspect, a method includes generating a map of signal strength for each of a plurality of possible antenna locations among one or more buildings. The method further includes identifying a percentage of a building having a level of wireless network coverage. The method also includes identifying a location of an antenna based on the map of signal strength and the identified percentage.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 29, 2019
    Inventors: Debasish SARKAR, Svemir POLCHERT, Ayan SEN, Shikha SINGH
  • Publication number: 20190261198
    Abstract: A management node and method at the management node provide automatic PCI allocation to sites in a RAN by iteratively identifying a selected cell site to be allocated a PCI group. From a group of cell sites in the RAN that have already been allocated a PCI group, the method obtains, for each PCI group, a closest neighbor site having a least distance from the selected cell site. The method allocates a PCI associated with a closest neighbor site based on whether any of the closest neighbor sites meet criteria including, with respect to the selected cell site, a respective distance greater than a cluster distance, a lack of coverage overlap between any respective sectors, a tier relationship that is two or greater and a respective distance greater than an average cell footprint, and a lack of sectors that face any sectors of the given cell site.
    Type: Application
    Filed: September 18, 2018
    Publication date: August 22, 2019
    Inventors: Debasish Sarkar, Surajit Mondal, Ayan Sen
  • Patent number: 10390383
    Abstract: A node of a wireless communication network receives a first request for establishment of a connection between a communication device and the wireless communication network. Upon receiving the first request, the node starts a timer and establishes a context for the connection between the communication device and the wireless communication network. Further, the node receives a second request for establishment of a connection between a communication device and the wireless communication network. Depending on a state of the timer when receiving the second request, the node selects between: A) establishing an additional context for the connection between the communication device and the wireless communication network while maintaining the established context, and B) releasing the established context and establishing a new context for the connection between the communication device and the wireless communication network.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: August 20, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ayan Sen, Indranil Ghosh, Debasish Sarkar, Shikha Singh
  • Patent number: 10368343
    Abstract: Systems and methods are disclosed for improving Physical Downlink Control Channel (PDCCH) allocation for improved downlink scheduling. In some embodiments, a method of operation of a network node in a cellular communications network comprises transmitting a downlink assignment to a wireless device, the downlink assignment comprising an indication of whether the downlink assignment applies to a single Transmit Time Interval (TTI) or multiple consecutive TTIs, and transmitting a downlink data transmission to the wireless device during a single TTI or multiple downlink data transmissions to the wireless device during multiple consecutive TTIs according to the downlink assignment. In this manner, the network node does not need to transmit, and the wireless device does not need to receive/decode, a separate downlink assignment in each TTI. This may be beneficial to, e.g., mitigate PDCCH congestion.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: July 30, 2019
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Debasish Sarkar, Ayan Sen, Jaspal Singh, Narendra Kumar Singh
  • Publication number: 20190174558
    Abstract: A node of a wireless communication network receives a first request for establishment of a connection between a communication device and the wireless communication network. Upon receiving the first request, the node starts a timer and establishes a context for the connection between the communication device and the wireless communication network. Further, the node receives a second request for establishment of a connection between a communication device and the wireless communication network. Depending on a state of the timer when receiving the second request, the node selects between: A) establishing an additional context for the connection between the communication device and the wireless communication network while maintaining the established context, and B) releasing the established context and establishing a new context for the connection between the communication device and the wireless communication network.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 6, 2019
    Inventors: Ayan Sen, Indranil Ghosh, Debasish Sarkar, Shikha Singh
  • Patent number: 10039040
    Abstract: Systems and methods for a cell change based on target cell performance are disclosed. In some embodiments, a method of operation of a network node in a cellular communications network comprises receiving a measurement report from a wireless device having a serving cell, the measurement report comprising an indication that another cell is better than the serving cell such that the other cell is identified as a target cell for a cell change and the serving cell is identified as a source cell for the cell change. The method further comprises determining whether to perform the cell change from the source cell to the target cell based on one or more parameters indicative of a performance of the target cell. The method further comprises performing the cell change upon determining that the cell change from the source cell to the target cell should be performed.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: July 31, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Debasish Sarkar, Deepak Gupta, Ayan Sen, Ganesh Kumar
  • Patent number: 10021604
    Abstract: A Radio Network Controller, RNC, and a method performed by the RNC for handing over a UE from a Universal Terrestrial Radio Access Network, UTRAN, to an Evolved UTRAN, E-UTRAN, wherein the UE has an ongoing Circuit Switched, CS, call and an ongoing Packet Switched, PS, session by means of the UTRAN are provided. The method comprises, when the CS call is released: determining (120) at least one criterion relating to at least one of an RNC characteristic, a UTRAN characteristic and an E-UTRAN characteristic; and handing over (130) the UE to the E-UTRAN when the at least one criterion is fulfilled.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: July 10, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Manoj Shetty, Debasish Sarkar, Ayan Sen
  • Publication number: 20170208509
    Abstract: A Radio Network Controller, RNC, and a method performed by the RNC for handing over a UE from a Universal Terrestrial Radio Access Network, UTRAN, to an Evolved UTRAN, E-UTRAN, wherein the UE has an ongoing Circuit Switched, CS, call and an ongoing Packet Switched, PS, session by means of the UTRAN are provided. The method comprises, when the CS call is released: determining (120) at least one criterion relating to at least one of an RNC characteristic, a UTRAN characteristic and an E-UTRAN characteristic; and handing over (130) the UE to the E-UTRAN when the at least one criterion is fulfilled.
    Type: Application
    Filed: July 9, 2014
    Publication date: July 20, 2017
    Inventors: Manoj Shetty, Debasish Sarkar, Ayan Sen
  • Patent number: 9591610
    Abstract: Disclosed herein is a method for improved paging in a wireless communication system. In a scenario where base stations broadcast congestion indicators to prevent mobile stations from registering in coverage areas that are experiencing threshold congestion, the method provides for a new form of zone based paging that accounts for the possibility that a mobile station has entered into a new zone but has not yet registered due to a threshold congestion state. According to the method, a paging attempt will be directed to the mobile station's zone of last registration and to only those coverage areas in at least one adjacent paging zone that are deemed to be experiencing threshold congestion.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: March 7, 2017
    Assignee: Sprint Spectrum L.P.
    Inventors: Debasish Sarkar, Manoj Shetty, Sachin R. Vargantwar, Siddharth S. Oroskar, Deveshkumar Rai
  • Patent number: 9560610
    Abstract: A method and arrangement in a Radio Network Controller (RNC) for monitoring radio link (RL) synchronization for each RL as soon as it is added to a User Equipment's (UE's) Active Set. When a new RL is added, each RL in the Active Set sends an Active Set Update Complete message to the RNC. When the RNC determines that a Radio Link Restore Indication message is not received from the Target NodeB serving the new RL, the RNC starts an initRlSyncT timer set for a defined time period and monitors incoming messages to determine whether the Radio Link Restore Indication message is received for the new RL before the initRlSyncT timer expires. If so, the method ends; but if not, the RNC instructs associated NodeBs and the UE to remove the new RL from the UE's Active Set.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: January 31, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Debasish Sarkar, Ayan Sen, Manmohan Munjal, Jaspal Singh
  • Publication number: 20160366628
    Abstract: Systems and methods for a cell change based on target cell performance are disclosed. In some embodiments, a method of operation of a network node in a cellular communications network comprises receiving a measurement report from a wireless device having a serving cell, the measurement report comprising an indication that another cell is better than the serving cell such that the other cell is identified as a target cell for a cell change and the serving cell is identified as a source cell for the cell change. The method further comprises determining whether to perform the cell change from the source cell to the target cell based on one or more parameters indicative of a performance of the target cell. The method further comprises performing the cell change upon determining that the cell change from the source cell to the target cell should be performed.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 15, 2016
    Inventors: Debasish Sarkar, Deepak Gupta, Ayan Sen, Ganesh Kumar
  • Publication number: 20160353415
    Abstract: Systems and methods are disclosed for improving Physical Downlink Control Channel (PDCCH) allocation for improved downlink scheduling. In some embodiments, a method of operation of a network node in a cellular communications network comprises transmitting a downlink assignment to a wireless device, the downlink assignment comprising an indication of whether the downlink assignment applies to a single Transmit Time Interval (TTI) or multiple consecutive TTIs, and transmitting a downlink data transmission to the wireless device during a single TTI or multiple downlink data transmissions to the wireless device during multiple consecutive TTIs according to the downlink assignment. In this manner, the network node does not need to transmit, and the wireless device does not need to receive/decode, a separate downlink assignment in each TTI. This may be beneficial to, e.g., mitigate PDCCH congestion.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 1, 2016
    Inventors: Debasish Sarkar, Ayan Sen, Jaspal Singh, Narendra Kumar Singh