Patents by Inventor Debashish Purkayastha

Debashish Purkayastha 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: 20210058329
    Abstract: A client application running on a WTRU is configured to communicate data traffic over a TCP session with an MPTCP stack running on the WTRU. The data traffic is exchanged with a server application over a first MPTCP sub-flow with a first mobile edge (ME) host device. The WTRU is anchored to a second ME anchor node. The WTRU receives a first message from a second ME host device indicating that the WTRU should join a second MPTCP sub-flow with the second ME host device. The WTRU joins the second MPTCP sub-flow, responsive to the first message, wherein the second sub-flow is configured not to exchange data traffic. The WTRU receives a second message from the second ME host device configuring the second MPTCP sub-flow to exchange data traffic. The WTRU exchanges the data traffic with the server application over the second MPTCP sub-flow with the second ME host device.
    Type: Application
    Filed: January 25, 2019
    Publication date: February 25, 2021
    Applicant: IDAC HOLDINGS, INC.
    Inventors: Michelle Perras, Robert G. Gazda, Debashish Purkayastha, Antonio de la Oliva
  • Patent number: 10849161
    Abstract: Systems and methods for using a communication system in a spectrum are provided. For example, a random access or RACH procedure may be performed where the random access or RACH procedure may be configured to reduce secondary interference and/or to be used in a pixel-based environment. The random access or RACH procedure may include selecting a RACH preamble; sending a RACH preamble and/or format information; determining a transmission power of the RACH preamble and/or the format information; determining a random access radio network temporary identifier (RA-RNTI) and preamble ID associated with the RACH preamble; and/or selecting a physical RACH (PRACH).
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: November 24, 2020
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Rocco Di Girolamo, Martino M. Freda, Jean-Louis Gauvreau, Scott Laughlin, Debashish Purkayastha
  • Patent number: 10735546
    Abstract: Systems, methods, and instrumentalities are disclosed for media caching proxy techniques (e.g., applications) that enable caching of multimedia content delivered, for example, using the Dynamic Adaptive Streaming over HTTP (DASH) protocol. A request may be received from a client for a media presentation description (MPD) file relating to media content. The media content may comprise a plurality of media segments. An MPD file may be received from cache. A subset of the plurality of media segments of the media content stored within the cache may be determined. An available bandwidth on a backhaul link may be determined. A dynamic MPD file may be generated based on the MPD file, the subset of the plurality of media segments of the media content that is stored within the cache of the middle box platform, and/or the available bandwidth on the backhaul link. The dynamic MPD file may be transmitted to the client.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 4, 2020
    Assignee: VID SCALE, Inc.
    Inventors: Bartosz Balazinski, Jun Li, Debashish Purkayastha
  • Publication number: 20190357253
    Abstract: Systems and methods for using a communication system in a spectrum are provided. For example, a random access or RACH procedure may be performed where the random access or RACH procedure may be configured to reduce secondary interference and/or to be used in a pixel-based environment. The random access or RACH procedure may include selecting a RACH preamble; sending a RACH preamble and/or format information; determining a transmission power of the RACH preamble and/or the format information; determining a random access radio network temporary identifier (RA-RNTI) and preamble ID associated with the RACH preamble; and/or selecting a physical RACH (PRACH).
    Type: Application
    Filed: August 2, 2019
    Publication date: November 21, 2019
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Rocco Di Girolamo, Martino M. Freda, Jean-Louis Gauvreau, Scott Laughlin, Debashish Purkayastha
  • Patent number: 10390367
    Abstract: Systems and methods for using a communication system in a spectrum are provided. For example, a random access or RACH procedure may be performed where the random access or RACH procedure may be configured to reduce secondary interference and/or to be used in a pixel-based environment. The random access or RACH procedure may include selecting a RACH preamble; sending a RACH preamble and/or format information; determining a transmission power of the RACH preamble and/or the format information; determining a random access radio network temporary identifier (RA-RNTI) and preamble ID associated with the RACH preamble; and/or selecting a physical RACH (PRACH).
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: August 20, 2019
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Rocco Di Girolamo, Martino M. Freda, Jean-Louis Gauvreau, Scott Laughlin, Debashish Purkayastha
  • Patent number: 10366137
    Abstract: Embodiments include methods, systems, and apparatuses for content delivery using shared caching, and more specifically, a browser cache extension (BCE) between a local browser cache and a remote cache located on an edge server. In an embodiment, a remote BCE function on the edge server may create a shared cache folder containing a remote cache and an remote cache index file. A local BCE function in the local browser may be able to access the shared cache folder via a network file system (NFS) protocol. The local BCE function may merge the remote index file with a local index file from the local browser and retrieve the remote cache at the local browser.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: July 30, 2019
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Jun Li, Debashish Purkayastha, Alexander Reznik
  • Publication number: 20190150195
    Abstract: Systems and methods for using a communication system in a spectrum are provided. For example, a random access or RACH procedure may be performed where the random access or RACH procedure may be configured to reduce secondary interference and/or to be used in a pixel-based environment. The random access or RACH procedure may include selecting a RACH preamble; sending a RACH preamble and/or format information; determining a transmission power of the RACH preamble and/or the format information; determining a random access radio network temporary identifier (RA-RNTI) and preamble ID associated with the RACH preamble; and/or selecting a physical RACH (PRACH).
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Rocco Di Girolamo, Martino M. Freda, Jean-Louis Gauvreau, Scott Laughlin, Debashish Purkayastha
  • Patent number: 10201013
    Abstract: Systems and methods for using a communication system in a spectrum are provided. For example, a random access or RACH procedure may be performed where the random access or RACH procedure may be configured to reduce secondary interference and/or to be used in a pixel-based environment. The random access or RACH procedure may include selecting a RACH preamble; sending a RACH preamble and/or format information; determining a transmission power of the RACH preamble and/or the format information; determining a random access radio network temporary identifier (RA-RNTI) and preamble ID associated with the RACH preamble; and/or selecting a physical RACH (PRACH).
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: February 5, 2019
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Rocco Di Girolamo, Martino M. Freda, Jean-Louis Gauvreau, Scott Laughlin, Debashish Purkayastha
  • Publication number: 20180367637
    Abstract: Systems, methods, and instrumentalities are disclosed for media caching proxy techniques (e.g., applications) that enable caching of multimedia content delivered, for example, using the Dynamic Adaptive Streaming over HTTP (DASH) protocol. A request may be received from a client for a media presentation description (MPD) file relating to media content. The media content may comprise a plurality of media segments. An MPD file may be received from cache. A subset of the plurality of media segments of the media content stored within the cache may be determined. An available bandwidth on a backhaul link may be determined. A dynamic MPD file may be generated based on the MPD file, the subset of the plurality of media segments of the media content that is stored within the cache of the middle box platform, and/or the available bandwidth on the backhaul link. The dynamic MPD file may be transmitted to the client.
    Type: Application
    Filed: June 29, 2016
    Publication date: December 20, 2018
    Applicant: Vid Scale, Inc.
    Inventors: Bartosz Balazinski, Jun Li, Debashish Purkayastha
  • Patent number: 10153870
    Abstract: A method and apparatus for operating supplementary cells in licensed exempt (LE) spectrum. An aggregating cell operating in a frequency division duplex (FDD) licensed spectrum is aggregated with a LE supplementary cell operating in a time sharing mode for uplink (UL) and downlink (DL) operations. The LE supplementary cell may be an FDD supplementary cell dynamically configurable between an UL only mode, a DL only mode, and a shared mode, to match requested UL and DL traffic ratios. The LE supplementary cell may be a time division duplex (TDD) supplementary cell. The TDD supplementary cell may be dynamically configurable between multiple TDD configurations. A coexistence capability for coordinating operations between the LE supplementary cell with other systems operating in the same channel is provided. Coexistence gaps are provided to measure primary/secondary user usage and permit other systems operating in the LE supplementary cell channel to access the channel.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: December 11, 2018
    Assignee: InterDigital Patent Holdongs, Inc.
    Inventors: Jean-Louis Gauvreau, Martino M. Freda, Zinan Lin, Joseph M. Murray, Chunxuan Ye, Erdem Bala, Mihaela C. Beluri, Douglas R. Castor, Amith V. Chincholi, Angelo A. Cuffaro, Yuying Dai, Alpaslan Demir, Joseph Gredone, Rui Yang, Liangping Ma, Rocco Di Girolamo, Debashish Purkayastha, Athmane Touag
  • Publication number: 20180270815
    Abstract: Coexistence gaps may permit one radio access technology (RAT) to coexists with another RAT by providing period in which one RAT may be silent and another may transmit. Methods may account for the RAT traffic and for the presence of other secondary users in a channel. Methods may be provided to dynamically change the parameters of a coexistence gap pattern, such as the duty cycle, to adapt to both the RAT traffic and the presence of other secondary users. Methods may include PHY methods, such as synchronization signal (PSS/SSS) based, MIB based, and PDCCH based, MAC CE based methods, and RRC Methods. Measurements may be provided to detect the presence of secondary users, and may include reporting of interference measured during ON and OFF durations, and detection of secondary users based on interference and RSRP/RSRQ measurements.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 20, 2018
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Erdem Bala, Mihaela C. Beluri, Debashish Purkayastha, Scott Laughlin, Martino M. Freda, Rocco Di Girolamo, Jean-Louis Gauvreau, Athmane Touag, Joseph M. Murray, David S. Bass
  • Patent number: 10070431
    Abstract: Systems, methods, and apparatus may be used to provide assistance for connection procedures in a hierarchical network where macro cells may be operating in licensed spectrum while small cells may be operating in dynamic and shared spectrums, such as TVWS. This may be done, for example, to allow an LTE system performing carrier aggregation (CA) to reconfigure itself to change from a supplementary cell (SuppCell) in one dynamic and shared spectrum channel to a SuppCell in another dynamic and shared spectrum channel.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: September 4, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Athmane Touag, Jean-Louis Gauvreau, Rocco Di Girolamo, Martino M. Freda, Joseph M. Murray, Mihaela C. Beluri, Scott Laughlin, Debashish Purkayastha, Angelo A. Cuffaro
  • Patent number: 10003933
    Abstract: A method and apparatus are described for synchronizing mobile station (i.e., wireless transmit/receive unit (WTRU)) media flows during a collaboration session. Inter-WTRU transfer request messages, flow addition request messages and session update request messages may be exchanged between a plurality of WTRUs and a session continuity control application server (SCC-AS). Each of the messages may include a session description protocol (SDP) attribute line containing time synchronization information (e.g., a presentation time offset (PTO) information element (IE), a media flow group identity (ID) and a synchronization tolerance IE). The SCC-AS may update the time synchronization information and include the updated information in messages it sends to the WTRUs, which may re-synchronize their respective media flows based on the updated time synchronization information.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: June 19, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Milan Patel, Kamel M. Shaheen, Debashish Purkayastha, Osama Lotfallah, Hang Liu
  • Publication number: 20180152268
    Abstract: A method and apparatus for operating supplementary cells in licensed exempt (LE) spectrum. An aggregating cell operating in a frequency division duplex (FDD) licensed spectrum is aggregated with a LE supplementary cell operating in a time sharing mode for uplink (UL) and downlink (DL) operations. The LE supplementary cell may be an FDD supplementary cell dynamically configurable between an UL only mode, a DL only mode, and a shared mode, to match requested UL and DL traffic ratios. The LE supplementary cell may be a time division duplex (TDD) supplementary cell. The TDD supplementary cell may be dynamically configurable between multiple TDD configurations. A coexistence capability for coordinating operations between the LE supplementary cell with other systems operating in the same channel is provided. Coexistence gaps are provided to measure primary/secondary user usage and permit other systems operating in the LE supplementary cell channel to access the channel.
    Type: Application
    Filed: January 29, 2018
    Publication date: May 31, 2018
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Jean-Louis Gauvreau, Martino M. Freda, Zinan Lin, Joseph M. Murray, Chunxuan Ye, Erdem Bala, Mihaela C. Beluri, Douglas R. Castor, Amith V. Chincholi, Angelo A. Cuffaro, Yuying Dai, Alpaslan Demir, Joseph Gredone, Rui Yang, Liangping Ma, Rocco Di Girolamo, Debashish Purkayastha, Athmane Touag
  • Publication number: 20180124833
    Abstract: Systems and methods for using a communication system in a spectrum are provided. For example, a random access or RACH procedure may be performed where the random access or RACH procedure may be configured to reduce secondary interference and/or to be used in a pixel-based environment. The random access or RACH procedure may include selecting a RACH preamble; sending a RACH preamble and/or format information; determining a transmission power of the RACH preamble and/or the format information; determining a random access radio network temporary identifier (RA-RNTI) and preamble ID associated with the RACH preamble; and/or selecting a physical RACH (PRACH).
    Type: Application
    Filed: December 22, 2017
    Publication date: May 3, 2018
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Rocco Di Girolamo, Martino M. Freda, Jean-Louis Gauvreau, Scott Laughlin, Debashish Purkayastha
  • Patent number: 9894686
    Abstract: Systems and methods for using a communication system in a spectrum are provided. For example, a random access or RACH procedure may be performed where the random access or RACH procedure may be configured to reduce secondary interference and/or to be used in a pixel-based environment. The random access or RACH procedure may include selecting a RACH preamble; sending a RACH preamble and/or format information; determining a transmission power of the RACH preamble and/or the format information; determining a random access radio network temporary identifier (RA-RNTI) and preamble ID associated with the RACH preamble; and/or selecting a physical RACH (PRACH).
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: February 13, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Rocco Di Girolamo, Martino M. Freda, Jean-Louis Gauvreau, Scott Laughlin, Debashish Purkayastha
  • Patent number: 9882684
    Abstract: A method and apparatus for operating supplementary cells in licensed exempt (LE) spectrum. An aggregating cell operating in a frequency division duplex (FDD) licensed spectrum is aggregated with a LE supplementary cell operating in a time sharing mode for uplink (UL) and downlink (DL) operations. The LE supplementary cell may be an FDD supplementary cell dynamically configurable between an UL only mode, a DL only mode, and a shared mode, to match requested UL and DL traffic ratios. The LE supplementary cell may be a time division duplex (TDD) supplementary cell. The TDD supplementary cell may be dynamically configurable between multiple TDD configurations. A coexistence capability for coordinating operations between the LE supplementary cell with other systems operating in the same channel is provided. Coexistence gaps are provided to measure primary/secondary user usage and permit other systems operating in the LE supplementary cell channel to access the channel.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: January 30, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Jean-Louis Gauvreau, Martino M. Freda, Zinan Lin, Joseph M. Murray, Chunxuan Ye, Erdem Bala, Mihaela C. Beluri, Douglas R. Castor, Amith V. Chincholi, Angelo A. Cuffaro, Yuying Dai, Alpaslan Demir, Joseph Gredone, Rui Yang, Liangping Ma, Rocco Di Girolamo, Debashish Purkayastha, Athmane Touag
  • Patent number: 9848022
    Abstract: A method of Inter-User Equipment (UE) Transfer (IUT) for use in an Internet Protocol (IP) Multimedia Subsystem (IMS) capable wireless transmit/receive unit (WTRU), the method comprising: receiving a registration request from a non-IMS capable WTRU; translating the registration request to an IMS based message; transmitting the translated IMS based message to a Service Centralization and Continuity Application Server (SCC AS), transmitting an IUT transfer command, transmitting an IUT process message; receiving an IUT process-accept message; and establishing an IMS session between the non-IMS capable WTRU and the remote party.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: December 19, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Robert G. Gazda, Debashish Purkayastha, Kamel M. Shaheen
  • Publication number: 20170295132
    Abstract: Mechanisms may be used for edge caching Hypertext Transfer Protocol Secure (HTTPS) content via an owner-endorsed proxy. The edge servers of a mobile-content distribution network (CDN) may work as the proxy that dynamically gets the means to serve HTTPS content through rights delegated by content owners. Mechanisms may include dynamically assigning a domain with a Canonical name (CNAME) record in DNS based on the popularity of the domain at an edge server. Each edge server from the plurality of edge servers may be associated with a mobile content distribution (mobile-CDN) network, via the mobile-CDN, the right to establish a transport layer security (TLS) session is delegated to the edge server on behalf of the content owner, so that the HTTPS request to the content server may be served by the edge server. A mechanism to restrict the scope of HTTPS content served through the delegated right is presented as well.
    Type: Application
    Filed: August 14, 2015
    Publication date: October 12, 2017
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Jun Li, Debashish Purkayastha
  • Publication number: 20170289593
    Abstract: Methods and systems may be used by a mobile-content distribution network (CDN) service to track individual user requests based on a correlation of a network level identifier to an application level identifier. The users may also be tracked using a mapping of the network level and application level identifiers to an internal identity. Further, the mobile-CDN service may build a cell profile using content requests from a set of active users across similar locations. Also, the mobile-CDN service may build a cell profile using content requests from user groups that have at least one member as an active user of the cell. Using a cell profile, the mobile-CDN may generate a prefetching content list for managed caching in the cell by localizing the content popularities and viewing patterns. The methods and systems may be applied in a small cell network (SCN).
    Type: Application
    Filed: September 24, 2015
    Publication date: October 5, 2017
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Jun Li, Debashish Purkayastha