Patents by Inventor Apostolos Papathanassiou

Apostolos Papathanassiou 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: 20170339567
    Abstract: Embodiments provide a system, apparatus, or non-transitory computer readable medium to provide a slicing architecture for wireless communications systems.
    Type: Application
    Filed: August 7, 2017
    Publication date: November 23, 2017
    Inventors: Qian Li, Huaning Niu, Geng Wu, Mo-Han Fong, Apostolos Papathanassiou
  • Patent number: 9794821
    Abstract: Embodiments described herein relate generally to a communication between a user equipment (“UE”) and an evolved Node Bs (“eNBs”) in a plurality of frequency bands. An eNB may transmit cross-carrier, cross-subframe scheduling information to a UE in a licensed frequency band. In response reception of the scheduling information, the UE may sense a wireless transmission medium to determine if the medium is idle. If the medium is idle, the UE may generate and transmit a request to reserve the medium in the unlicensed frequency band (e.g., a Clear-to-Send message). The eNB may transmit downlink data to the UE in the unlicensed frequency band. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: October 17, 2017
    Assignee: Intel IP Corporation
    Inventors: Jeongho Jeon, Huaning Niu, Qinghua Li, Hwan-Joon Kwon, Christian Ibars-Casas, Pingping Zong, Mo-Han Fong, Apostolos Papathanassiou
  • Patent number: 9774436
    Abstract: A user equipment (UE) can reserve shared spectrum between two wireless protocols upon the request from a tower. For example, an enhanced node B (eNB or eNodeB) transmits a message to associated UEs including a set of candidate UEs, a length of time to reserve, and a frequency band to use. UEs perform medium sensing on the specified spectrum if a UE finds its identifier in the set of candidate UEs. Candidate UEs transmit a clear to send (CTS) message with channel reservation information if the medium is idle. A result of the success or failure of the CTS transmission attempt is sent back to the eNB. Upon receiving the feedback information from the UEs, the eNB starts sending data to those UEs that sent the positive feedback on the channel reservation.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: September 26, 2017
    Assignee: INTEL IP CORPORATION
    Inventors: Jeongho Jeon, Huaning Niu, Apostolos Papathanassiou, Pingping Zong, Mo-Han Fong, Jong-Kae Fwu, Christian Ibars Casas, Geng Wu, Qinghua Li
  • Patent number: 9775045
    Abstract: Embodiments provide a system, apparatus, or non-transitory computer readable medium to provide a slicing architecture for wireless communications systems.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: September 26, 2017
    Assignee: INTEL IP CORPORATION
    Inventors: Qian Li, Huaning Niu, Geng Wu, Mo-Han Fong, Apostolos Papathanassiou
  • Publication number: 20170238361
    Abstract: Systems and methods disclosed herein describe a centralized-processing cloud-based RAN (C-RAN or cloud-RAN) architecture that offers reduced front-haul data-rate requirements compared to common-public-radio-interface (CPRI) based C-RAN architectures. Base-band physical-layer processing can be divided between a BBU Pool and an enhanced RRH (eRRH). A frequency-domain compression approach that exploits LTE signal redundancy and user scheduling information can be used at the eRRH to significantly reduce front-haul data-rate requirements. Uniform scalar quantization and variable-rate Huffman coding in the frequency-domain can be applied in a compression approach based on the user scheduling information wherein a lossy compression is followed by a lossless compression.
    Type: Application
    Filed: June 30, 2015
    Publication date: August 17, 2017
    Inventors: SAMEER PAWAR, HUANING NIU, APOSTOLOS PAPATHANASSIOU
  • Patent number: 9730220
    Abstract: Disclosed in some examples are systems, machine-readable media, methods, and cellular wireless devices which implement a Listen Before Talk (LBT) access scheme for a device operating according to a cellular wireless protocol in an unlicensed channel. A cellular wireless device may utilize the cellular wireless protocol in the unlicensed channel after the LBT access scheme has determined that a channel (a defined range of frequencies) in the unlicensed channel is idle for a particular period of time.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: August 8, 2017
    Assignee: Intel IP Corporation
    Inventors: Abhijeet Bhorkar, Christian Ibars Casas, Pingping Zong, Apostolos Papathanassiou
  • Patent number: 9661658
    Abstract: A signal structure for use in D2D communications is described. In one embodiment, a preamble for automatic gain control at the receiver end is included in the transmitted signal. Techniques for scheduling of D2D transmissions using carrier sensing multiple access (CSMA) and a power control schemes for interference management are also described.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: May 23, 2017
    Assignee: Intel Corporation
    Inventors: Qinghua Li, Honggang Li, Huaning Niu, Yi Hsuan, Yuan Zhu, Xiaogang Chen, Jong-Kae Fwu, Alexei Davydov, Hujun Yin, Xintian E Lin, Wendy C. Wong, Yujian Zhang, Apostolos Papathanassiou
  • Patent number: 9647818
    Abstract: Embodiments of wireless communication devices and methods for device discovery is generally described herein. Some of these embodiments describe an apparatus having processing circuitry arranged to configure a single-tone discovery signal for transmission in a symbol in a transmission opportunity based on an assignment pattern. The assignment pattern may define frequency positions, for a set of transmission opportunities, at which the apparatus shall transmit discovery signals in the corresponding transmission opportunity. The apparatus may have physical layer circuitry arranged to transmit the single-tone discovery signal in the corresponding transmission opportunity. Other methods and apparatuses are also described.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: May 9, 2017
    Assignee: Intel IP Corporation
    Inventors: Seunghee Han, Apostolos Papathanassiou, Hong He, Jong-Kae Fwu, Alexei Vladimirovich Davydov
  • Publication number: 20170126375
    Abstract: Disclosed embodiments may include an apparatus having one or more processors coupled to one or more computer-readable storage media. The one or more processors may be configured to transmit and/or receive channel state information reference signal (CSI-RS) resource configuration information, demodulation reference signals (DM-RS), uplink sounding reference signals (SRS), and power control parameters to support uplink coordinated multi-point (CoMP) operations. Other embodiments may be disclosed.
    Type: Application
    Filed: January 17, 2017
    Publication date: May 4, 2017
    Inventors: DEBDEEP CHATTERJEE, KAMRAN ETEMAD, RONGZHEN YANG, JONG-KAE FWU, APOSTOLOS PAPATHANASSIOU
  • Patent number: 9635664
    Abstract: Systems and techniques for sounding reference signal enhancement to support uplink coordinated multipoint are described herein. A sounding reference signal may be assigned to a user equipment based on a relationship between the user equipment and a cell edge of a cell served by a wireless network device and serving the user equipment.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: April 25, 2017
    Assignee: Intel Corporation
    Inventors: Apostolos Papathanassiou, Shahrnaz Azizi
  • Publication number: 20170079059
    Abstract: Embodiments provide a system, apparatus, or non-transitory computer readable medium to provide a slicing architecture for wireless communications systems.
    Type: Application
    Filed: February 29, 2016
    Publication date: March 16, 2017
    Inventors: Qian Li, Huaning Niu, Geng Wu, Mo-Han Fong, Apostolos Papathanassiou
  • Patent number: 9591638
    Abstract: Disclosed embodiments may include an apparatus having one or more processors coupled to one or more computer-readable storage media. The one or more processors may be configured to transmit and/or receive channel state information reference signal (CSI-RS) resource configuration information, demodulation reference signals (DM-RS), uplink sounding reference signals (SRS), and power control parameters to support uplink coordinated multi-point (CoMP) operations. Other embodiments may be disclosed.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: March 7, 2017
    Assignee: Intel Corporation
    Inventors: Debdeep Chatterjee, Kamran Etemad, Rongzhen Yang, Jong-Kae Fwu, Apostolos Papathanassiou
  • Publication number: 20170055228
    Abstract: Examples are disclosed for determining, at a base station, a target received power parameter for a wireless device in communication with the base station. In some examples, the target received power parameter may be determined based on one or more uplink status signals received from the wireless device at the base station and/or one or more other base stations. For these examples, the wireless device may adjust one or more transmit power levels responsive to receiving the target received power parameter from the base station. Other examples are described and claimed.
    Type: Application
    Filed: March 28, 2016
    Publication date: February 23, 2017
    Applicant: Intel Corporation
    Inventors: Rongzhen Yang, Apostolos Papathanassiou
  • Publication number: 20160381708
    Abstract: A signal structure for use in D2D communications is described. In one embodiment, a preamble for automatic gain control at the receiver end is included in the transmitted signal. Techniques for scheduling of D2D transmissions using carrier sensing multiple access (CSMA) and a power control schemes for interference management are also described.
    Type: Application
    Filed: September 9, 2016
    Publication date: December 29, 2016
    Inventors: Qinghua Li, Honggang Li, Huaning Niu, Yi Hsuan, Yuan Zhu, Xiaogang Chen, Jong-Kae Fwu, Alexei Vladimirovich Davydov, Hujun Yin, Xintian E. Lin, Wendy C. Wong, Yujian Zhang, Apostolos Papathanassiou
  • Patent number: 9497682
    Abstract: Embodiments of a central processing unit and methods for supporting coordinated multi-point (CoMP) transmissions in a 3GPP LTE network with non-ideal backhaul links are generally described herein. In some embodiments, the CPU may be arranged for scheduling and assigning resources for subordinate enhanced node Bs (eNBs) over the backhaul links for CoMP transmissions. The scheduling may include an additional number of HARQ processes to compensate, at least in part, for backhaul link latency.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: November 15, 2016
    Assignee: Intel Corporation
    Inventors: Alexei Davydov, Gregory Morozov, Hong He, Apostolos Papathanassiou, Seunghee Han
  • Patent number: 9473276
    Abstract: Briefly, in accordance with one or more embodiments, cooperation of multiple beams for transmission is provided by identifying at least two beams among multiple beams that are dominant for a user, determining if there is any beam collision between the at least two beams, and, if there is beam collision between the at least two beams, delaying scheduling on one or more weaker ones of the at least two beams for other users and combining the two or more beams for transmission to the user. Alternatively, cooperation of multiple beams for transmission is provided by, if there is beam collision between the at least two beams, muting one or more weaker ones of the at least two beams and transmitting to the user with a stronger one of the at least two beams.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: October 18, 2016
    Assignee: Intel IP Corporation
    Inventors: Masoud Sajadieh, Hooman Shirani-Mehr, Debdeep Chatterjee, Apostolos Papathanassiou, Jong-Kae Fwu
  • Publication number: 20160295588
    Abstract: Disclosed in some examples are systems, machine-readable media, methods, and cellular wireless devices which implement a Listen Before Talk (LBT) access scheme for a device operating according to a cellular wireless protocol in an unlicensed channel. A cellular wireless device may utilize the cellular wireless protocol in the unlicensed channel after the LBT access scheme has determined that a channel (a defined range of frequencies) in the unlicensed channel is idle for a particular period of time.
    Type: Application
    Filed: June 17, 2016
    Publication date: October 6, 2016
    Inventors: Abhijeet Bhorkar, Christian Ibars Casas, Pingping Zong, Apostolos Papathanassiou
  • Patent number: 9392614
    Abstract: Disclosed in some examples are systems, machine-readable media, methods, and cellular wireless devices which implement a Listen Before Talk (LBT) access scheme for a device operating according to a cellular wireless protocol in an unlicensed channel. A cellular wireless device may utilize the cellular wireless protocol in the unlicensed channel after the LBT access scheme has determined that a channel (a defined range of frequencies) in the unlicensed channel is idle for a particular period of time.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: July 12, 2016
    Assignee: Intel IP Corporation
    Inventors: Abhijeet Bhorkar, Christian Ibars Casas, Pingping Zong, Apostolos Papathanassiou
  • Publication number: 20160192224
    Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of predicting a channel condition. For example, A User Equipment (UE) may include a radio to communicate over a millimeter Wave (mmWave) band with at least one network (NW) element of a network controlled by a cellular node, and to receive from the NW element topology information corresponding to a topology at a location of the UE; and a channel estimator to predict a channel condition of a channel between the UE and the cellular node based on the topology information.
    Type: Application
    Filed: December 24, 2014
    Publication date: June 30, 2016
    Inventors: Michael Faerber, Apostolos Papathanassiou
  • Publication number: 20160183248
    Abstract: Embodiments describe example radio access networks where uplink and downlink communications operate asymmetrically. In one embodiment, an inverse fast Fourier transform and an add cyclic prefix operation is performed on a downlink communications by a baseband unit. In an uplink communication using the same baseband unit, a corresponding fast Fourier transform and a remove cyclic prefix operation are performed at a remote radio unit. This generates different levels of traffic on a physical communication link between the baseband unit and the remote radio unit for uplink and downlink communications with similar characteristics.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: Huaning Niu, Apostolos Papathanassiou, Geng Wu