Patents by Inventor Alexander Reznik

Alexander Reznik 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: 9596599
    Abstract: A method and apparatus for use in authentication for secure wireless communication is provided. A received signal is physically authenticated and higher layer processed. Physical authentication includes performing hypothesis testing using a channel impulse response (CIR) measurement of the received signal and predetermined referenced data. Higher layer processing includes validating the signal using a one-way hash chain value in the signal. Once a signal is authenticated, secure wireless communication is performed.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 14, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Liang Xiao, Chunxuan Ye, Suhas Mathur, Yogendra C Shah, Alexander Reznik
  • Patent number: 9571175
    Abstract: A method and apparatus for encoding channel quality indicator (CQI) and precoding control information (PCI) bits are disclosed. Each of the input bits, such as CQI bits and/or PCI bits, has a particular significance. The input bits are encoded with a linear block coding. The input bits are provided with an unequal error protection based on the significance of each input bit. The input bits may be duplicated based on the significance of each input bit and equal protection coding may be performed. A generator matrix for the encoding may be generated by elementary operation of conventional basis sequences to provide more protection to a most significant bit (MSB).
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: February 14, 2017
    Assignee: InterDigital Technology Corporation
    Inventors: Rui Yang, Philip J. Pietraski, Eldad M. Zeira, Alexander Reznik, Yongwen E. Yang
  • Patent number: 9554270
    Abstract: A method and apparatus for secure direct link communication between multiple wireless transmit/receive units (WTRUs) are disclosed. The WTRUs may exchange nonces that are used for generating a common nonce. Group identification information may be generated from at least the common nonce and is forwarded to an authentication server. The authentication server may generate a master key from the group identification information to match WTRUs as part of a key agreement group. The common nonce may be a session key and be refreshed during communication with the second WTRU. A group key encryption key (GKEK) and a group key confirmation key (GKCK) may also be generated based on the common nonce and used to encrypt and sign the master key so that base stations do not have access to the master key. A first WTRU may generate a group direct link temporal key (GDLTK) for communicating with the second WTRU.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: January 24, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Alexander Reznik, Yogendra C. Shah
  • Patent number: 9538569
    Abstract: A wireless transmit/receive unit (WTRU) may determine, from an input, pressure on a visual depiction of media on a touch display and a push across the touch display. Another WTRU may be detected with use of bluetooth. The media may be transferred to the another WTRU with use of WiFi.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: January 3, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Alan G. Carlton, Alexander Reznik
  • Patent number: 9537560
    Abstract: A method and apparatus for wireless communications is disclosed. Channel state information (CSI) for a plurality of network nodes is transmitted. Grant information is received from at least one network node of the plurality of network nodes. The grant information is based on the transmitted CSI and includes an indication of a cooperative scheme. A plurality of beam-formed signals, including data from each of the plurality of network nodes, is received in response to the received grant information. The same data is received from each of the plurality of network nodes.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 3, 2017
    Assignee: InterDigital Technology Corporation
    Inventors: Sana Sfar, Alexander Reznik, Prabhakar Chitrapu, Zinan Lin, Mohammed Sammour, Ana Lucia A. Pinheiro, Mihaela Beluri, Chunxuan Ye, Yogendra Shah, Gregg A. Charlton, Guodong Zhang, Khushali N. Manseta, Ruiyuan Hu
  • Publication number: 20160381594
    Abstract: Methods, systems and apparatus for managing and/or enforcing one or more policies for managing internet protocol (“IP”) traffic among multiple accesses of a network in accordance with a policy for managing bandwidth among the multiple accesses are disclosed. Among the methods, systems and apparatus is a method that may include obtaining performance metrics associated with the multiple accesses. The method may also include adapting one or more rules of one or more the policies for managing IP traffic among the plurality of accesses based, at least in part, on the performance metrics and the policy for managing bandwidth among the plurality of accesses. The method may further include managing IP traffic associated with at least one wireless transmit and/or receive unit (“WTRU”) among the plurality of accesses responsive to the adapted rules.
    Type: Application
    Filed: August 17, 2016
    Publication date: December 29, 2016
    Inventors: John L. Tomici, Prabhakar R. Chitrapu, Alexander Reznik, Oscar Lopez-Torres, Chunxuan Ye, Milan Patel, Catherine M. Livet
  • Patent number: 9526056
    Abstract: A method and apparatus for offloading backhaul traffic are disclosed. A first base station may detect a condition triggering backhaul traffic offloading for a wireless transmit/receive unit (WTRU). The first base station may establish a wireless connection with a second base station, and offload at least one bearer of the WTRU onto the second base station via the wireless connection. The first base station may be a macro-cell base station and the second base station may be a femto-cell base station having a wired connection to Internet and a mobile operator core network. The first or second base station may include a relay functionality and act as a relay between the WTRU and the other base station. The backhaul link may be established using a Uu, Un, X2 interface or any other interface over a licensed or license-exempt frequency, a TV white space frequency, etc.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 20, 2016
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: John L. Tomici, Prabhakar R. Chitrapu, Ayaskant Rath, Angelo A. Cuffaro, Brian G. Kiernan, Joseph M. Murray, Ravikumar V. Pragada, Alexander Reznik
  • Publication number: 20160345328
    Abstract: A wireless transmit/receive units (WTRUs) receives a downlink transmission from a Node-B and decodes the downlink transmission. If the decoding is not successful, the WTRU sends a pre-defined burst signifying a negative acknowledgement (NACK) to the Node-B via a contention-based shared feedback channel. The pre-defined burst may be sent only once without requiring an acknowledgement. The Node-B calibrates a downlink transmit power so that the downlink transmission is transmitted to the WTRUs with a high likelihood. The Node-B may send a downlink transmission including multiple data streams processed using different modulation and coding schemes so that a WTRU having a high signal quality decodes all data streams while a WTRU having a low signal quality decodes less than all data streams. The Node-B sends a channel quality indicator (CQI) threshold so that each WTRU determines a data stream to report feedback based on the CQI threshold and a measured CQI.
    Type: Application
    Filed: August 3, 2016
    Publication date: November 24, 2016
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Alexander Reznik, Eldad M. Zeira, Christopher R. Cave, Paul Marinier
  • Publication number: 20160330665
    Abstract: A method and apparatus are described for supporting dynamic and distributed mobility management (DMM). A wireless transmit/receive unit (WTRU) may attach to a first distributed gateway (D-GW), and configure a first Internet protocol (IP) address based on a prefix locally provided by the first D-GW. The WTRU may move and attach to a second D-GW while carrying out an on-going communication session with a correspondent node (CN). The WTRU may configure a second IP address based on a prefix provided by the second D-GW. The WTRU may use the first IP address for carrying out the on-going session and use the second IP address for a new communication session.
    Type: Application
    Filed: July 19, 2016
    Publication date: November 10, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Juan Carlos Zuniga, Carlos Jesus Bernardos, Alexander Reznik
  • Publication number: 20160330077
    Abstract: User-specific virtual networks may be created within one or more physical wireless networks. For example, user-specific virtual networks may follow one or more wireless transmit/receive units (WTRUs) within a network, such as a WiFi network. A network controller may create and manage a plurality of Service Set Identifications (SSIDs), create virtual access points (APs), and assign virtual AP identifiers for a plurality of WTRUs. The network controller may request physical APs to create the virtual APs with the assigned virtual AP identifiers. Switches and routers may be configured so that each of the plurality of WTRUs has a user-specific virtual router and routing path to the user-specific virtual router. The network controller may reconfigure the switches and routers to maintain the user-specific virtual router and routing path as changes occur in the network.
    Type: Application
    Filed: January 8, 2015
    Publication date: November 10, 2016
    Applicant: INTERDIGITAL PATENT HOLDING, INC.
    Inventors: Hao JIN, Carlos Jesus BERNARDOS, Juan Carlos ZUNIGA, Alexander REZNIK
  • Patent number: 9490948
    Abstract: A communication network's bandwidth may be managed using bandwidth management (“BWM”) and/or bandwidth aggregation (“BWA”) techniques. For example, packets of traffic may be inspected to identify a video stream and/or video sub-streams. The video sub-streams may be partitioned for transmission. For example, the video sub-streams may be partitioned based on a characteristic and/or policies associated therewith. One or more radio access technologies (“RATs”) may be selected for transmitting the video sub-streams. The one or more RATs may be selected according to one or more policies for managing the bandwidth associated with the video. The video sub-streams may be transmitted via a single RAT or a plurality of aggregated RATs.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: November 8, 2016
    Assignee: VID SCALE, Inc.
    Inventors: Serhad Doken, Alexander Reznik
  • Patent number: 9490977
    Abstract: A method and apparatus for generating physical layer security keys is provided. Channel impulse response (CIR) measurements are recorded. Each CIR measurement is associated with a time-stamp. Where possible, the time-stamps are paired with time-stamps that are associated with another plurality of CIR measurements. The CIR data associated with the paired time-stamps is aggregated. Each of the aggregated CIR measurements is aligned, and at least one CIR measurement is selected for use in secret key generation.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: November 8, 2016
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Chunxuan Ye, Alexander Reznik, Yogendra C. Shah, Julien Closs, Frederic H. Truco
  • Patent number: 9473986
    Abstract: Methods, systems and apparatus for managing and/or enforcing one or more policies for managing internet protocol (“IP”) traffic among multiple accesses of a network in accordance with a policy for managing bandwidth among the multiple accesses are disclosed. Among the methods, systems and apparatus is a method that may include obtaining performance metrics associated with the multiple accesses. The method may also include adapting one or more rules of one or more the policies for managing IP traffic among the plurality of accesses based, at least in part, on the performance metrics and the policy for managing bandwidth among the plurality of accesses. The method may further include managing IP traffic associated with at least one wireless transmit and/or receive unit (“WTRU”) among the plurality of accesses responsive to the adapted rules.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: October 18, 2016
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: John L. Tomici, Prabhakar R. Chitrapu, Alexander Reznik, Oscar Lopez-Torres, Chunxuan Ye, Milan Patel, Catherine Livet
  • Publication number: 20160270090
    Abstract: Systems and methods for dynamic white space management are described. First, local handling of channel queries, in which a channel query by a white space device (WSD) is handled by a local dynamic spectrum management (DSM) server, if the DSM server has all the information necessary for providing a response to the channel query. Second, a search extension, in which a WSDB passes part of a search for available channels to a local DSM server. Third, assisting of an available channel calculation, in which a DSM server provides spectrum sensing information to WSDBs to improve the available channel calculation within the WSDBs. And fourth, dynamic bandwidth management to meet the coexistence requirements. In addition, the content of the messages and procedures that enable the above value-adding functions and interactions with the WSDB systems are described.
    Type: Application
    Filed: May 20, 2016
    Publication date: September 15, 2016
    Inventors: Saad Ahmad, Jean-Louis Gauvreau, Rocco Di Girolamo, Alexander Reznik, Liangping Ma, Chunxuan Ye, Alpaslan Demir, Angelo A. Cuffaro
  • Publication number: 20160261322
    Abstract: A method and apparatus for encoding channel quality indicator (CQI) and precoding control information (PCI) bits are disclosed. Each of the input bits, such as CQI bits and/or PCI bits, has a particular significance. The input bits are encoded with a linear block coding. The input bits are provided with an unequal error protection based on the significance of each input bit. The input bits may be duplicated based on the significance of each input bit and equal protection coding may be performed. A generator matrix for the encoding may be generated by elementary operation of conventional basis sequences to provide more protection to a most significant bit (MSB).
    Type: Application
    Filed: May 16, 2016
    Publication date: September 8, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Rui Yang, Philip J. Pietraski, Eldad M. Zeira, Alexander Reznik, Yongwen E. Yang
  • Publication number: 20160262025
    Abstract: Disclosed herein are methods and apparatus for the communication of wireless data using diverse radio access technologies (RATs) in Television Band (TVBD) frequencies. An architecture for communicating wireless data in TVBD frequencies may include one or more network nodes that perform functions related to the coordination of channel quieting across multiple diverse RATs. Channel quieting may be performed across multiple diverse RATs by using temporary channel reassignments, by aggregating wireless transmit/receive units (WTRUs) that use a particular RAT onto the same channel, and/or via other techniques.
    Type: Application
    Filed: May 18, 2016
    Publication date: September 8, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Juan Carlos Zuniga, Alexander Reznik, Joseph A. Kwak
  • Patent number: 9439192
    Abstract: A wireless transmit/receive units (WTRUs) receives a downlink transmission from a Node-B and decodes the downlink transmission. If the decoding is not successful, the WTRU sends a pre-defined burst signifying a negative acknowledgement (NACK) to the Node-B via a contention-based shared feedback channel. The pre-defined burst may be sent only once without requiring an acknowledgement. The Node-B calibrates a downlink transmit power so that the downlink transmission is transmitted to the WTRUs with a high likelihood. The Node-B may send a downlink transmission including multiple data streams processed using different modulation and coding schemes so that a WTRU having a high signal quality decodes all data streams while a WTRU having a low signal quality decodes less than all data streams. The Node-B sends a channel quality indicator (CQI) threshold so that each WTRU determines a data stream to report feedback based on the CQI threshold and a measured CQI.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: September 6, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Alexander Reznik, Eldad M. Zeira, Christopher R. Cave, Paul Marinier
  • Publication number: 20160255535
    Abstract: Systems, methods, and instrumentalities are disclosed for defining a network specialization mechanism that enables a better alignment between end users' usage profiles and their access networks. Conteni specialization of networks may be implemented as a preference o a particular SCN or network in terms of content. Such a network may, for example, cache in priority preferred content, provide preferential quality of service (QoS), or limit access to non-preferred content. A network may advertise its preference or content specialization to end users (e.g., so that end users can decide to attach to SCNs or networks with compatible preferences) and to other content networks (e.g., to influence content routing decisions or to negotiate partitioning of the specialization space). Such content specialization may apply to physical or virtual networks.
    Type: Application
    Filed: October 30, 2014
    Publication date: September 1, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Bartosz Balazinski, Alexander Reznik, Juan Carlos Zuniga, Jun Li, John Cartmell, Hang Liu
  • Patent number: 9420498
    Abstract: A method and apparatus are described for supporting dynamic and distributed mobility management (DMM). A wireless transmit/receive unit (WTRU) may attach to a first distributed gateway (D-GW), and configure a first Internet protocol (IP) address based on a prefix locally provided by the first D-GW. The WTRU may move and attach to a second D-GW while carrying out an on-going communication session with a correspondent node (CN). The WTRU may configure a second IP address based on a prefix provided by the second D-GW. The WTRU may use the first IP address for carrying out the on-going session and use the second IP address for a new communication session.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: August 16, 2016
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Juan Carlos Zuniga, Carlos Jesus Bernardos, Alexander Reznik
  • Publication number: 20160234850
    Abstract: A method for managing channel selection in a dynamic spectrum management network includes receiving a spectrum allocation request; based on the source of the spectrum allocation request, checking for available channels; based on the source of the spectrum allocation request, collecting sensing and usage data for the available channels; providing the channel usage data to an entity that transmitted the spectrum allocation request.
    Type: Application
    Filed: April 13, 2016
    Publication date: August 11, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Martino M. Freda, Parul Mudgal, Jean-Louis Gauvreau, Athmane Touag, Rocco Di Girolamo, Amith V. Chincholi, Joseph M. Murray, Chunxuan Ye, Scott Laughlin, Zinan Lin, Alexander Reznik, Saad Ahmad, Joseph A. Kwak, Juan Carlos Zuniga, Angelo A. Cuffaro