Patents by Inventor Alpaslan Demir

Alpaslan Demir 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: 20200314752
    Abstract: A wireless transmit/receive unit (WTRU) may include one or more antennas and a first transceiver operatively coupled to the antennas. The one or more antennas and the first transceiver may be configured to receive a first signal from a network using zero energy from the WTRU. The one or more antennas and the first transceiver may be further configured to extract energy from the first signal. The first transceiver may be further configured to examine a separation between energy threshold events to decode an energy signature of the first signal. The first transceiver may be further configured to activate a second transceiver operatively coupled to the one or more antennas if the decoded energy signature matches a stored energy signature, wherein the second transceiver is powered by the WTRU. The one or more antennas and the second transceiver may be configured to receive a second signal from the network.
    Type: Application
    Filed: November 30, 2018
    Publication date: October 1, 2020
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Tanbir Haque, Ravikumar V. Pragada, Anantharaman Balasubramanian, Alpaslan Demir
  • Publication number: 20200314906
    Abstract: A method to reserve a directional channel, such as in an unlicensed spectrum for instance, is disclosed. In an example embodiment, the method may be performed by a receiving node, such as a user equipment (UE) for instance. In such method, the receiving node may receive an enhanced directional transmit request message from a transmitting node and transmit an enhanced directional transmit confirmation message using one or more first beams, with at least one first beam being directed in a first direction towards the transmitting node. Further, the receiving node may transmit at least one additional enhanced directional transmit confirmation message using one or more second beams, with at least one second beam being directed in a second direction towards a potentially interfering node. In the method, the second direction is a different direction than the first direction.
    Type: Application
    Filed: October 17, 2018
    Publication date: October 1, 2020
    Inventors: Sanjay Goyal, Arnab Roy, Alpaslan Demir, J. Patrick Tooher, Janet Stern-Berkowitz, Moon-il Lee, Lorenza Giupponi, Sandra Lagén Morancho, Biljana Bojovic, Mihaela Beluri
  • Patent number: 10764906
    Abstract: Described herein is a silent period method and apparatus for dynamic spectrum management. The methods include configuration and coordination of silent periods across an aggregated channel in a wireless communication system. A silent period management entity (SPME) dynamically determines silent period schedules for channels based on system and device information and assigns a silent period duration and periodicity for each silent period. The SPME may reconfigure the silent period schedule based on system delay, system throughput, channel quality or channel management events. A silent period interpretation entity (SPIE) receives and implements the silent period schedule. The silent periods for the channels may be synchronized, independent, or set-synchronized.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: September 1, 2020
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Martino M. Freda, Liangping Ma, Saad Ahmad, Jean-Louis Gauvreau, Alpaslan Demir, Chunxuan Ye
  • Publication number: 20200107373
    Abstract: Systems, methods, and instrumentalities are disclosed for Random Access Channel (RACH) procedures in unlicensed spectrum. A wireless transmit/receive unit (WTRU) may monitor for a random access response (RAR) or a reference signal (RS), e.g. in an RAR window. The WTRU may determine whether an RS has been received a threshold amount of times, e.g. if an RAR is not received. The WTRU may continue to monitor for an RAR or an RS, e.g. if the RS has not been received a threshold amount of times and the RAR window is not at a maximum RAR window size.
    Type: Application
    Filed: June 14, 2018
    Publication date: April 2, 2020
    Applicant: IDAC Holdings, Inc.
    Inventors: Arnab Roy, Janet A. Stern-Berkowitz, J. Patrick Tooher, Alpaslan Demir, Moon-il Lee, Muhammad U. Fazili, Kevin T. Wanuga, Sanjay Goyal, Mihaela Beluri, Scott M. Newton
  • Publication number: 20200077437
    Abstract: A wireless transmit receive unit (WTRU) may receive a set of candidate resources, which may be used for transmission. The WTRU may periodically perform CCA on a channel (e.g., before transmitting on the channel). When the channel is determined to be free, the WTRU may determine a resource for transmission from the candidate resources. The resource may be determined based on the time remaining in the time period. For example, when the time remaining in the time period is shorter, the WTRU may determine to transmit on a resource that comprises more frequency resources. The WTRU may determine a Multiple Input Multiple Output (MIMO) scheme based on the number of frequency resources. The WTRU may send a transmission on the resource, which may include a demodulation reference signal (DM-RS). The DM-RS may indicate the resource used from transmission to a receiver of the transmission.
    Type: Application
    Filed: April 25, 2018
    Publication date: March 5, 2020
    Applicant: IDAC Holdings, Inc.
    Inventors: Janet A. Stern-Berkowitz, Moon-il Lee, J. Patrick Tooher, Alpaslan Demir, Sanjay Goyal, Mihaela C. Beluri
  • Patent number: 10575245
    Abstract: Techniques for sending an aggregated beacon in a cognitive wireless network are disclosed. A beacon device may segment beacon information and send beacon segments via a plurality of channels simultaneously. A certain information elements of the beacon information may be included in each beacon segment. Each beacon segment may include channel information for other beacon segments that are transmitted simultaneously. Alternatively, a discovery beacon may be transmitted in addition to a regular beacon. The discovery beacon may include information indicating an operating channel on which the regular beacon is transmitted. The discovery beacon may be transmitted using a predetermined channel bandwidth, with a smaller beacon interval than the regular beacon, or in a frequency hopping fashion. The discovery beacon may be sent on a channel selected based on a regulatory class and corresponding channel information. The discovery beacon may be transmitted on a side channel.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: February 25, 2020
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Jean-Louis Gauvreau, Zinan Lin, Rocco DiGirolamo, Joseph M. Murray, Alpaslan Demir, Saad Ahmad, Angelo A. Cuffaro, Alexander Reznik, Zaid Al-khatib
  • Publication number: 20190182759
    Abstract: Techniques for sending an aggregated beacon in a cognitive wireless network are disclosed. A beacon device may segment beacon information and send beacon segments via a plurality of channels simultaneously. A certain information elements of the beacon information may be included in each beacon segment. Each beacon segment may include channel information for other beacon segments that are transmitted simultaneously. Alternatively, a discovery beacon may be transmitted in addition to a regular beacon. The discovery beacon may include information indicating an operating channel on which the regular beacon is transmitted. The discovery beacon may be transmitted using a predetermined channel bandwidth, with a smaller beacon interval than the regular beacon, or in a frequency hopping fashion. The discovery beacon may be sent on a channel selected based on a regulatory class and corresponding channel information. The discovery beacon may be transmitted on a side channel.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Jean-Louis Gauvreau, Zinan Lin, Rocco Di Girolamo, Joseph M. Murray, Alpaslan Demir, Saad Ahmad, Angelo A. Cuffaro, Alexander Reznik, Zaid Al-khatib
  • Publication number: 20190165890
    Abstract: Latency reduction by fast forward (FF) in multi-hop communication device and/or systems is disclosed. Packets may be received and forwarded using a codeword (CW)-based approach with and/or without per-CW CRC. A FF session may have a flow ID and packets may have sequence numbers. Packets targeted for FF may be divided into independently decodable CWs that may be transmitted in the next hop, for example, as soon as the destination is determined without waiting for an entire packet's arrival and/or for CRC verification. Low latency (e.g. FF) traffic may be indicated. CW-based FF may be extensible for an e2e RAN path from a WTRU to the last access node in a RAN. Intermediate metrics, a packet CRC and/or a per-CW CRC may be utilized for data integrity. HARQ and/or CW retransmission procedures may be implemented between network nodes for error handling.
    Type: Application
    Filed: July 1, 2017
    Publication date: May 30, 2019
    Applicant: IDAC Holdings, Inc.
    Inventors: Philip J. Pietraski, Arnab Roy, Kyle Jung-Lin Pan, Alpaslan Demir, Muhammad U. Fazili, William E. Lawton, Mohamed Abou El Seoud, Kevin T. Wanuga, Ravikumar V. Pragada
  • Patent number: 10237812
    Abstract: Techniques for sending an aggregated beacon in a cognitive wireless network are disclosed. A beacon device may segment beacon information and send beacon segments via a plurality of channels simultaneously. A certain information elements of the beacon information may be included in each beacon segment. Each beacon segment may include channel information for other beacon segments that are transmitted simultaneously. Alternatively, a discovery beacon may be transmitted in addition to a regular beacon. The discovery beacon may include information indicating an operating channel on which the regular beacon is transmitted. The discovery beacon may be transmitted using a predetermined channel bandwidth, with a smaller beacon interval than the regular beacon, or in a frequency hopping fashion. The discovery beacon may be sent on a channel selected based on a regulatory class and corresponding channel information. The discovery beacon may be transmitted on a side channel.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: March 19, 2019
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Saad Ahmad, Jean-Louis Gauvreau, Rocco DiGirolamo, Zinan Lin, Angelo A. Cuffaro, Zaid Al-Khatib, Joseph Murray, Alexander Reznik, Alpaslan Demir
  • 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
  • Patent number: 10111122
    Abstract: Systems, methods, and instrumentalities are disclosed to schedule user equipment (UE) measurements. An HeNB may identify a first cluster of UEs and a second cluster of UEs. The HeNB may determine a measuring gap schedule relating to the first cluster of UEs and the second cluster of UEs. The measuring gap schedule may indicate a measurement time for each cluster. The measurement time may indicate that UEs in a cluster withhold a transmission during the measurement time. The UEs in the cluster may measure a spectrum (e.g., frequency, channel, etc.) associated with a supplementary cell during the measurement time. The HeNB may send the measuring gap schedule to the first cluster of UEs and the second cluster of U Es. The HeN B may receive spectrum measurements of the supplementary cell from the first cluster of UEs and the second cluster of UEs, e.g., in accordance with the measuring gap schedule.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: October 23, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Amith V. Chincholi, Joseph M. Murray, Martino Freda, Alpaslan Demir
  • Patent number: 10050762
    Abstract: A dynamic spectrum management (DSM) engine may determine the channel quality of one or more channels associated with the DSM engine when packets are not being transmitted over the channels. For example, the DSM engine may trigger a channel quality measurement on a non-primary channel on a condition that a predetermined period of time has lapsed since the last activity associated with the non-primary channel. Channel quality measurement may be triggered via a data sending event on the non-primary channel such as sending a data frame on the non-primary channel. The DSM engine may perform respective quality measurements on multiple channels and store the respective quality values in a database. Time-averaged channel qualities for the channels may be computed based on the stored quality values for computing transmit power distribution of across the channels.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: August 14, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Jane Mack, Francois Periard, Fred M. Schreider, John Cartmell, Amith V. Chincholi, Alpaslan Demir, Zinan Lin
  • Patent number: 10039098
    Abstract: A method and apparatus are described that provides flexible spectrum usage by using a paired frequency division duplex (FDD) spectrum to enable dynamic access in television white space (TVWS), sub-leased spectrum or unlicensed spectrum, (e.g., industrial, scientific and medical (ISM) bands), in a femto cell environment or the like. Elastic FDD (E-FDD) enables femto cell operation in TVWS, sub-leased spectrum and/or unlicensed spectrum, either simultaneously with licensed spectrum or as an alternate channel to licensed spectrum. E-FDD enables dynamic asymmetric bandwidth allocation for uplink (UL) and downlink (DL) in FDD, and enables variable duplex spacing, (i.e., using FDD with minimum duplex spacing between DL and UL spectrum, or, using hybrid-FDD, (FDD in a time duplexed fashion), when a spectrum gap between the UL and DL spectrum is below a certain minimum threshold. Additionally, the signaling enhancements to implement E-FDD are also provided.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: July 31, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Amith V. Chincholi, Alpaslan Demir, Tanbir Haque
  • 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
  • Patent number: 9955375
    Abstract: A method for sensing measurement gap scheduling includes allocating a new supplementary carrier in a license-exempt spectrum by a radio resource management (RRM) entity in an evolved Node B (eNB); configuring a local cognitive sensing entity in the eNB by the RRM entity; configuring a wireless transmit/receive unit (WTRU) for cognitive sensing through radio resource control (RRC) signaling, the RRC signaling being generated by the eNB; configuring a local cognitive sensing entity at the WTRU by a dynamic spectrum management (DSM) entity; and signaling a start and a duration of a measurement gap to an enhanced sensing component.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: April 24, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Amith V. Chincholi, Joseph M. Murray, Alpaslan Demir, Martino M. Freda, Athmane Touag, Jean-Louis Gauvreau, David S. Bass
  • Publication number: 20180092108
    Abstract: Described herein is a silent period method and apparatus for dynamic spectrum management. The methods include configuration and coordination of silent periods across an aggregated channel in a wireless communication system. A silent period management entity (SPME) dynamically determines silent period schedules for channels based on system and device information and assigns a silent period duration and periodicity for each silent period. The SPME may reconfigure the silent period schedule based on system delay, system throughput, channel quality or channel management events. A silent period interpretation entity (SPIE) receives and implements the silent period schedule. The silent periods for the channels may be synchronized, independent, or set-synchronized.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 29, 2018
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Martino M. Freda, Liangping Ma, Saad Ahmad, Jean-Louis Gauvreau, Alpaslan Demir, Chunxuan Ye
  • Patent number: 9930568
    Abstract: Methods and apparatus are described. According to a method, a wireless transmit/receive unit (WTRU) communicates with a base station using a first base station operating frequency and a set of cell configuration parameters. The WTRU receives information indicating a second base station operating frequency to use for communications with the base station at a given time. The WTRU communicates with the base station using the second base station operating frequency and the same set of cell configuration parameters on or after the given time.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: March 27, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Joseph M. Murray, Chunxuan Ye, Zinan Lin, Jean-Louis Gauvreau, Alpaslan Demir, Angelo A. Cuffaro, Rocco DiGirolamo, James M. Miller
  • 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: 9839045
    Abstract: Described herein is a silent period method and apparatus for dynamic spectrum management. The methods include configuration and coordination of silent periods across an aggregated channel in a wireless communication system. A silent period management entity (SPME) dynamically determines silent period schedules for channels based on system and device information and assigns a silent period duration and periodicity for each silent period. The SPME may reconfigure the silent period schedule based on system delay, system throughput, channel quality or channel management events. A silent period interpretation entity (SPIE) receives and implements the silent period schedule. The silent periods for the channels may be synchronized, independent, or set-synchronized.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: December 5, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Martino M. Freda, Liangping Ma, Saad Ahmad, Jean-Louis Gauvreau, Alpaslan Demir, Chunxuan Ye
  • Patent number: 9807778
    Abstract: Described herein are methods, metrics and apparatus for bandwidth allocation for cognitive radio. Information that needs to be passed between different components of a dynamic spectrum management (DSM) system for dynamic bandwidth allocation along with the corresponding interfaces is identified. Methods and associated metrics for measuring network performance, evaluating channel sensing results and handling various bandwidth allocation scenarios are presented. Also provided is an admission control mechanism for quality of service support. Alternate channel monitoring may be performed in the background so that when a new channel is needed, an alternate channel may be immediately allocated and service disruption to the DSM system is reduced. A channel may be dynamically assigned as the primary channel in multiple channel scenarios to support tasks such as transmission of acknowledgment frames.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: October 31, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Liangping Ma, Athmane Touag, Martino M. Freda, Jean-Louis Gauvreau, Chunxuan Ye, Alpaslan Demir, Amith V. Chincholi