Patents by Inventor Ozgun Bursalioglu Yilmaz

Ozgun Bursalioglu Yilmaz 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: 11973534
    Abstract: A method of operating a communication network includes training a neural network and implementing the neural network to determine link availability. Training the neural network includes receiving first images and signal visibility data for first locations for one or more first nodes in the communication network, generating training data based on the first images and the signal visibility data, and training the neural network using the training data to output an attenuation category related to attenuation rate of a link based on a training image and a timestamp for the training image. Implementing the neural network includes receiving second images for second locations for one or more second nodes in the communication network, determining link availability based on the second images and outputs from the neural network, and operating the communication network based on the link availability.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: April 30, 2024
    Assignee: X Development LLC
    Inventors: Varun Puri, Ozgun Bursalioglu Yilmaz
  • Publication number: 20230135206
    Abstract: A method of operating a communication network includes training a neural network and implementing the neural network to determine link availability. Training the neural network includes receiving first images and signal visibility data for first locations for one or more first nodes in the communication network, generating training data based on the first images and the signal visibility data, and training the neural network using the training data to output an attenuation category related to attenuation rate of a link based on a training image and a timestamp for the training image. Implementing the neural network includes receiving second images for second locations for one or more second nodes in the communication network, determining link availability based on the second images and outputs from the neural network, and operating the communication network based on the link availability.
    Type: Application
    Filed: October 28, 2021
    Publication date: May 4, 2023
    Applicant: X Development LLC
    Inventors: Varun Puri, Ozgun Bursalioglu Yilmaz
  • Patent number: 10966220
    Abstract: A method and apparatus is disclosed herein for scheduling, load balancing and/or pilot assignment in MIMD cellular deployments (e.g., reciprority-based MIMO cellular deployments). In one embodiment, the method comprises receiving, by the central controller from at least one AP, for at least one user terminal, a size of a user set and user rate information indicative of a rate that can be provided to the user terminal when served in a group of one or more user terminals; and determining, by the central controller, based on user rate information and the user set size, an allocation of AP resources among the user terminals for the at least one AP.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: March 30, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Dilip Bethanabhotla, Ozgun Bursalioglu Yilmaz, Haralabos Papadopoulos, Giuseppe Caire
  • Patent number: 10848214
    Abstract: A method and apparatus is disclosed herein for base station selection based on uplink pilot and distributed user-proximity detection. In one embodiment, the method comprises performing uplink pilot configuration for a plurality of user terminals over a set of common resource elements, including generating a plurality of pilot patterns for the plurality of user terminals, where each of the plurality of pilot patterns comprises at least one zero-power resource element and at least one non-zero-power resource element and at least one zero-power resource element allocated to each different one of the plurality of user terminals has a different position in the pilot pattern.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: November 24, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuichi Kakishima, Le Liu, Haralabos Papadopoulos, Ozgun Bursalioglu-Yilmaz, Chenwei Wang
  • Patent number: 10594459
    Abstract: A method and apparatus for data transmission in a cellular system are disclosed herein In one embodiment, the method comprises receiving transmissions of uplink pilot signals made in each slot, by a number of UEs, over the radio resource elements in slots that are allocated for uplink pilot transmission, wherein the number of UEs in the vicinity of at least one base station exceeds the number of radio resource elements that have been allocated for uplink pilot transmission in the slot; estimating large-scale radio-channel propagation strengths of a plurality of nearby UEs to a base station; estimating radio-propagation channel coefficients between each base-station antenna and each UE, in a subset of UEs in the plurality of nearby UEs that have large-scale radio-channel propagation strengths to the base station that are stronger than those UEs in the plurality of nearby UEs not part of the subset; and transmitting to in-cell UEs via multi-user beamforming, including suppressing interference to one or more nea
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 17, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Chenwei Wang, Ozgun Bursalioglu Yilmaz, Haralabos Papadopoulos
  • Patent number: 10536249
    Abstract: A method and apparatus is disclosed herein for uplink pilot reuse and user-proximity detection in wireless networks. In one embodiment, a wireless system is disclosed for use in a wireless network having a plurality of user terminals (UTs), where at least two UTs of the plurality of UTs have pre-assigned user uplink pilot codes and are allocated common pilot resources over at least two concurrent slots, the system comprising a UT-proximity detection processor to determine which UT channels the UT-proximity detection processor can resolve among a group of UTs transmitting pilots in identical pilot resources, the UT-proximity detection processor operable to resolve a UT channel of a UT by determining the UT is in proximity of the system and no other UT in the group of UTs transmitting pilots that has transmitted a pilot on the identical pilot resources is in proximity of the system.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: January 14, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Haralabos Papadopoulos, Ozgun Bursalioglu Yilmaz, Chenwei Wang
  • Patent number: 10299165
    Abstract: A method and apparatus are disclosed herein for user/base station signaling and load balancing across a wireless network. In one embodiment, the method comprises broadcasting, by a first base station in the wireless network, information indicative of the load of the first base station; receiving an association request from the user terminal for association with the first base station in response to the user terminal predicting a net throughput from the first base station, based on the information indicative of the load, being greater than net throughput from a second base station to which the user terminal is currently associated; and determining whether to accept the association request while performing an association process for selectively allowing only a fraction of requests from user terminals to associated with the base station.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 21, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Haralabos Papadopoulos, Ozgun Bursalioglu Yilmaz
  • Publication number: 20190074876
    Abstract: A method and apparatus is disclosed herein for base station selection based on uplink pilot and distributed user-proximity detection. In one embodiment, the method comprises performing uplink pilot configuration for a plurality of user terminals over a set of common resource elements, including generating a plurality of pilot patterns for the plurality of user terminals, where each of the plurality of pilot patterns comprises at least one zero-power resource element and at least one non-zero-power resource element and at least one zero-power resource element allocated to each different one of the plurality of user terminals has a different position in the pilot pattern.
    Type: Application
    Filed: May 5, 2017
    Publication date: March 7, 2019
    Inventors: Yuichi KAKISHIMA, Le LIU, Haralabos PAPADOPOULOS, Ozgun BURSALIOGLU-YILMAZ, Chenwei WANG
  • Publication number: 20180351708
    Abstract: A method and apparatus for data transmission in a cellular system are disclosed herein In one embodiment, the method comprises receiving transmissions of uplink pilot signals made in each slot, by a number of UEs, over the radio resource elements in slots that are allocated for uplink pilot transmission, wherein the number of UEs in the vicinity of at least one base station exceeds the number of radio resource elements that have been allocated for uplink pilot transmission in the slot; estimating large-scale radio-channel propagation strengths of a plurality of nearby UEs to a base station; estimating radio-propagation channel coefficients between each base-station antenna and each UE, in a subset of UEs in the plurality of nearby UEs that have large-scale radio-channel propagation strengths to the base station that are stronger than those UEs in the plurality of nearby UEs not part of the subset; and transmitting to in-cell UEs via multi-user beamforming, including suppressing interference to one or more nea
    Type: Application
    Filed: April 24, 2018
    Publication date: December 6, 2018
    Inventors: Chenwei Wang, Ozgun Bursalioglu Yilmaz, Haralabos Papadopoulos
  • Publication number: 20180332618
    Abstract: A method of wireless communication using an unlicensed band includes performing, with a first transceiver, Listen-Before-Talk (LBT) in the unlicensed band, after the first transceiver has performed the LBT, transmitting a first signal from the first transceiver to a second transceiver in the unlicensed band, and after the first transceiver has transmitted the first signal, transmitting a second signal from the second transceiver to the first transceiver in the unlicensed band without the second transceiver performing the LBT.
    Type: Application
    Filed: November 2, 2016
    Publication date: November 15, 2018
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuichi Kakishima, Ozgun Bursalioglu-Yilmaz, Hiroki Harada, Satoshi Nagata
  • Patent number: 10123326
    Abstract: A method and apparatus is disclosed herein for resource allocation in a wireless communication system are disclosed. In one embodiment, the method comprises allocating portions of the resources available to a subset of base stations of the plurality of base stations to serve a subset of UTs from clusters of base stations with cluster sizes including at least one with two or more base stations, where each of the portions of resources are allocated to serve one UT via a user-dependent cluster of base stations; and scheduling UT transmissions over the subset of base stations and scheduling slots, wherein within each of the scheduling slots one or more user terminals are scheduled for transmission, each by its user-dependent cluster of base stations.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 6, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Qiaoyang Ye, Ozgun Bursalioglu Yilmaz, Haralabos Papadopoulos
  • Publication number: 20180309549
    Abstract: A method and apparatus is disclosed herein for uplink pilot reuse and user-proximity detection in wireless networks. In one embodiment, a wireless system is disclosed for use in a wireless network having a plurality of user terminals (UTs), where at least two UTs of the plurality of UTs have pre-assigned user uplink pilot codes and are allocated common pilot resources over at least two concurrent slots, the system comprising a UT-proximity detection processor to determine which UT channels the UT-proximity detection processor can resolve among a group of UTs transmitting pilots in identical pilot resources, the UT-proximity detection processor operable to resolve a UT channel of a UT by determining the UT is in proximity of the system and no other UT in the group of UTs transmitting pilots that has transmitted a pilot on the identical pilot resources is in proximity of the system.
    Type: Application
    Filed: October 14, 2016
    Publication date: October 25, 2018
    Inventors: Haralabos PAPADOPOULOS, Ozgun Bursalioglu YILMAZ, Chenwei WANG
  • Patent number: 10003388
    Abstract: A method and apparatus is disclosed herein for internal relative transceiver calibration.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 19, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Ozgun Bursalioglu Yilmaz, Haralabos Papadopoulos, Giuseppe Caire
  • Patent number: 9876539
    Abstract: A method and apparatus for load balancing in a wireless network is described.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: January 23, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Haralabos Papadopoulos, Ozgun Bursalioglu Yilmaz
  • Publication number: 20170034841
    Abstract: A method and apparatus is disclosed herein for scheduling, load balancing and/or pilot assignment in MIMD cellular deployments (e.g., reciprority-based MIMO cellular deployments).
    Type: Application
    Filed: December 3, 2014
    Publication date: February 2, 2017
    Inventors: Dilip BETHANABHOTLA, Ozgun Bursalioglu YILMAZ, Haralabos PAPADOPOULOS, Giuseppe CAIRE
  • Publication number: 20160270073
    Abstract: A method and apparatus is disclosed herein for resource allocation in a wireless communication system are disclosed. In one embodiment, the method comprises allocating portions of the resources available to a subset of base stations of the plurality of base stations to serve a subset of UTs from clusters of base stations with cluster sizes including at least one with two or more base stations, where each of the portions of resources are allocated to serve one UT via a user-dependent cluster of base stations; and scheduling UT transmissions over the subset of base stations and scheduling slots, wherein within each of the scheduling slots one or more user terminals are scheduled for transmission, each by its user-dependent cluster of base stations.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 15, 2016
    Inventors: Qiaoyang Ye, Ozgun Bursalioglu Yilmaz, Haralabos Papadopoulos
  • Publication number: 20160192238
    Abstract: A method and apparatus are disclosed herein for user/base station signaling and load balancing across a wireless network. In one embodiment, the method comprises broadcasting, by a first base station in the wireless network, information indicative of the load of the first base station; receiving an association request from the user terminal for association with the first base station in response to the user terminal predicting a net throughput from the first base station, based on the information indicative of the load, being greater than net throughput from a second base station to which the user terminal is currently associated; and determining whether to accept the association request while performing an association process for selectively allowing only a fraction of requests from user terminals to associated with the base station.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 30, 2016
    Inventors: Haralabos Papadopoulos, Ozgun Bursalioglu Yilmaz
  • Publication number: 20150365953
    Abstract: A method and apparatus for load balancing in a wireless network is described.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 17, 2015
    Inventors: Haralabos Papadopoulos, Ozgun Bursalioglu Yilmaz
  • Patent number: 9131238
    Abstract: A source channel encoder, source channel decoder and methods for implementing such devices are disclosed herein. The source channel encoder includes a linear transform encoder configured to generate a plurality of source components. A successive refinement quantizer is configured to generate a plurality of bit planes based on the source components. A systematic linear encoder configured to map the bit planes into channel-encoded symbols. The linear transform encoder may be configured to apply a Discrete Cosine Transform (DCT) or a Discrete Wavelet Transform (DWT). The linear transform encoder may be configured for differential encoding.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: September 8, 2015
    Assignees: The Trustees of Princeton University, University of Southern California
    Inventors: Ozgun Bursalioglu Yilmaz, Giuseppe Caire, Maria Fresia, Harold Vincent Poor
  • Publication number: 20150222336
    Abstract: A method and apparatus is disclosed herein for internal relative transceiver calibration.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 6, 2015
    Inventors: Ozgun Bursalioglu Yilmaz, Haralabos Papadopoulos, Giuseppe Caire