Patents by Inventor Masoud Sajadieh

Masoud Sajadieh 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: 10499434
    Abstract: A mobile terminal device may include a radio processing circuit and a baseband processing circuit adapted to interact with the baseband processing circuit. The mobile terminal device may be configured to calculate a plurality of inverse frequency transforms with inputs of a plurality of samples of a frequency-domain signal sequence to generate a plurality of intermediate transforms, wherein each of the plurality of intermediate transforms are composed of a respective plurality of samples, combine the respective plurality of samples of each of the plurality of intermediate transforms to generate a time-domain representation of the frequency-domain signal sequence, generate a random access preamble with the time-domain representation of the frequency-domain signal sequence, and transmit the random access preamble.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: December 3, 2019
    Assignee: Intel Corporation
    Inventors: Vishwanath Ramamurthi, Masoud Sajadieh, Nikita Degotinsky
  • Patent number: 9698889
    Abstract: A technology that is operable to schedule data transfer for a multiple user multiple-input and multiple-output (MU-MIMO) communications network is disclosed. In one embodiment, an enhanced node B (eNode B) is configured with circuitry configured to receive a sounding signal from each of a plurality of user equipment (UEs). One or more major paths of the sounding signals from each of the plurality of UEs are determined. An angle of arrival (AoA) is determined that is associated with each of the one or more major paths. The plurality of UEs are grouped into one or more candidate MU-MIMO sets using the AoAs associated with each of the one or more major paths. Data transmissions are scheduled for one or more of the candidate UEs of the candidate MU-MIMO set on one or more of the major paths of each of the candidate UEs.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: July 4, 2017
    Assignee: INTEL CORPORATION
    Inventors: Feng Xue, Yuan Zhu, Hooman Shirani-Mehr, Roya Doostnejad, Qinghua Li, Masoud Sajadieh
  • Patent number: 9647735
    Abstract: A hybrid digital and analog beamforming device for a node operable with an antenna array is disclosed. In an example, the hybrid digital and analog beamforming device can include computer circuitry configured to: Segment antenna elements of an antenna array into at least two groups of antenna elements; map antenna ports for transmission chains to one group of the antenna elements; constrain digital precoding weights for a digital precoder for the antenna elements, where the digital precoding weight includes a digital phase and amplitude; and determine analog precoding weights for an analog precoder for the antenna elements, where the analog precoding weight includes an analog phase.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: May 9, 2017
    Assignee: Intel IP Corporation
    Inventors: Masoud Sajadieh, Hooman Shirani-Mehr, Feng Xue, Qinghua Li
  • Publication number: 20170094686
    Abstract: A mobile terminal device may include a radio processing circuit and a baseband processing circuit adapted to interact with the baseband processing circuit. The mobile terminal device may be configured to calculate a plurality of inverse frequency transforms with inputs of a plurality of samples of a frequency-domain signal sequence to generate a plurality of intermediate transforms, wherein each of the plurality of intermediate transforms are composed of a respective plurality of samples, combine the respective plurality of samples of each of the plurality of intermediate transforms to generate a time-domain representation of the frequency-domain signal sequence, generate a random access preamble with the time-domain representation of the frequency-domain signal sequence, and transmit the random access preamble.
    Type: Application
    Filed: September 25, 2015
    Publication date: March 30, 2017
    Inventors: VISHWANATH RAMAMURTHI, MASOUD SAJADIEH, NIKITA DEGOTINSKY
  • 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
  • Patent number: 9461723
    Abstract: Technology to generate an improved signal-to-interference-plus-noise ratio (SINR) from a set of orthogonal reference signals (RSs) is disclosed. In an example, a user equipment (UE) can include computer circuitry configured to: Receive a set of orthogonal RSs from a node; calculate a SINR for each of the RSs in the set of orthogonal RSs to form a set of SINR; select a maximum SINR from the set of SINR; and quantize the maximum SINR for the set of SINR. Each reference signal can represent a transmission beam direction.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: October 4, 2016
    Assignee: INTEL IP CORPORATION
    Inventors: Masoud Sajadieh, Hooman Shirani-Mehr
  • Patent number: 9461727
    Abstract: Technology to adaptively sectorize a spatial region for parallel multi-user transmissions is disclosed. In an example, a node (e.g., evolved Node B (eNB)) can include computer circuitry configured to: Generate a set of precoding matrices for a set of beam cones in the spatial region; and generate a beam cone for multi-user beamforming transmissions using system information for the beam cone. A precoding matrix in the set of precoding matrices can be used for each beam cone, and each beam cone can cover a beam cone spatial region that differs from another beam cone spatial region of another beam cone in the spatial region. Each beam cone can include system information that differs from the system information of the other beam cones in the spatial region.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 4, 2016
    Assignee: INTEL CORPORATION
    Inventors: Feng Xue, Qinghua Li, Masoud Sajadieh, Jong-Kae Fwu
  • Patent number: 9420634
    Abstract: Embodiments of the present disclosure describe methods, apparatuses, and systems related to a user equipment having virtual mobile terminals. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: August 16, 2016
    Assignee: Intel Corporation
    Inventors: Masoud Sajadieh, Xue Yang, Praveen Gopalakrishnan
  • Publication number: 20160088648
    Abstract: A technology that is operable to schedule data transfer for a multiple user multiple-input and multiple-output (MU-MIMO) communications network is disclosed. In one embodiment, an enhanced node B (eNode B) is configured with circuitry configured to receive a sounding signal from each of a plurality of user equipment (UEs). One or more major paths of the sounding signals from each of the plurality of UEs are determined. An angle of arrival (AoA) is determined that is associated with each of the one or more major paths. The plurality of UEs are grouped into one or more candidate MU-MIMO sets using the AoAs associated with each of the one or more major paths. Data transmissions are scheduled for one or more of the candidate UEs of the candidate MU-MIMO set on one or more of the major paths of each of the candidate UEs.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventors: Feng Xue, Yuan Zhu, Hooman Shirani-Mehr, Roya Doostnejad, Qinghua Li, Masoud Sajadieh
  • Publication number: 20160080051
    Abstract: A hybrid digital and analog beamforming device for a node operable with an antenna array is disclosed. In an example, the hybrid digital and analog beamforming device can include computer circuitry configured to: Segment antenna elements of an antenna array into at least two groups of antenna elements; map antenna ports for transmission chains to one group of the antenna elements; constrain digital precoding weights for a digital precoder for the antenna elements, where the digital precoding weight in dudes a digital phase and amplitude; and determine analog precoding weights for an analog precoder for the antenna elements, where the analog precoding weight includes an analog phase.
    Type: Application
    Filed: December 12, 2013
    Publication date: March 17, 2016
    Inventors: Masoud SAJADIEH, Hooman SHIRANI-MEHR, Feng XUE, Qinghua LI
  • Patent number: 9277588
    Abstract: Disclosed in some examples is a user-equipment including a transceiver; one or more processors configured to: provide a first mobile personality associated with a first mobile application executing on the one or more processors; provide a second mobile personality associated with a second mobile application executing on the one or more processors; and provide a first virtual mobile device associated with the first mobile personality and a second virtual mobile device associated with the second mobile personality, wherein the first and second virtual mobile devices provide independent connectivity to the first and second mobile applications via the transceiver.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: March 1, 2016
    Assignee: Intel Corporation
    Inventors: Masoud Sajadieh, Andreas Schmidt
  • Patent number: 9252853
    Abstract: Examples are disclosed for beamforming to mitigate multi-user leakage and interference. The examples include an evolved node B (eNB) receiving feedback from user equipment (UEs) to indicate strongest or highest channel gains for various beams included in a plurality of beam sets. A selection process or scheme may then be implemented to select individual beams for a UE that minimizes or reduces leakage caused by the UE's use of a given beam. Reducing leakage may reduce interference to other UEs using other beams. Other examples are described and claimed.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: February 2, 2016
    Assignee: INTEL CORPORATION
    Inventors: Masoud Sajadieh, Hooman Shirani-Mehr
  • Patent number: 9225404
    Abstract: Technology to provide hybrid beamforming feedback is disclosed. In an example, a user equipment (UE) can include computer circuitry configured to: Receive a reference signal (RS) from a node; calculate an optimal channel direction from the RS; calculate an optimal signal-to-interference-plus-noise ratio (SINR) for the optimal channel direction, where the optimal SINR is conditionally calculated with an intra-cell interference component or calculated without the intra-cell interference component based on a feedback configuration; and transmit the optimal channel direction and the optimal SINR to the node.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: December 29, 2015
    Assignee: INTEL IP CORPORATION
    Inventors: Hooman Shirani-Mehr, Masoud Sajadieh
  • Publication number: 20150200718
    Abstract: Examples are disclosed for beamforming to mitigate multi-user leakage and interference. The examples include an evolved node B (eNB) receiving feedback from user equipment (UEs) to indicate strongest or highest channel gains for various beams included in a plurality of beam sets. A selection process or scheme may then be implemented to select individual beams for a UE that minimizes or reduces leakage caused by the UE's use of a given beam. Reducing leakage may reduce interference to other UEs using other beams. Other examples are described and claimed.
    Type: Application
    Filed: September 27, 2013
    Publication date: July 16, 2015
    Inventors: Masoud Sajadieh, Hooman Shirani-Mehr
  • Publication number: 20150139292
    Abstract: Technology to provide hybrid beamforming feedback is disclosed. In an example, a user equipment (UE) can include computer circuitry configured to: Receive a reference signal (RS) from a node; calculate an optimal channel direction from the RS; calculate an optimal signal-to-interference-plus-noise ratio (SINR) for the optimal channel direction, where the optimal SINR is conditionally calculated with an intra-cell interference component or calculated without the intra-cell interference component based on a feedback configuration; and transmit the optimal channel direction and the optimal SINR to the node.
    Type: Application
    Filed: June 26, 2013
    Publication date: May 21, 2015
    Inventors: Hooman Shirani-Mehr, Masoud Sajadieh
  • Publication number: 20150131750
    Abstract: Technology to adaptively sectorize a spatial region for parallel multi-user transmissions is disclosed. In an example, a node (e.g., evolved Node B (eNB)) can include computer circuitry configured to: Generate a set of precoding matrices for a set of beam cones in the spatial region; and generate a beam cone for multi-user beamforming transmissions using system information for the beam cone. A precoding matrix in the set of precoding matrices can be used for each beam cone, and each beam cone can cover a beam cone spatial region that differs from another beam cone spatial region of another beam cone in the spatial region. Each beam cone can include system information that differs from the system information of the other beam cones in the spatial region.
    Type: Application
    Filed: September 5, 2013
    Publication date: May 14, 2015
    Inventors: Feng Xue, Jong-Kae Fwu, Masoud Sajadieh, Qinghua Li
  • Patent number: 9014091
    Abstract: A communication device for providing dual-active personae using a single subscriber identification module. A long term evolution (LTE) protocol stack, maintained in the memory, defines a layered data structure for transmitting and receiving data. A single subscriber identification module provides data for a first persona and a second persona. A processor is coupled to the single subscriber identification module and memory and implements, on the single communication device, first virtual user equipment (vUE) associated with the first persona and second vUE associated with the second persona using virtual LTE protocol stacks for each vUE supported by the single subscriber identification module.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: April 21, 2015
    Assignee: Intel Corporation
    Inventor: Masoud Sajadieh
  • Patent number: 8989207
    Abstract: A multiple-persona system and method is described, wherein a UE (user equipment) is able to connect to two different networks simultaneously. In a multiple-persona system, one of the personas may have a higher significance than the other persona. For example, a connection to a work network may be prioritized over connection to a home network. In such a situation, it may be desirable to have applications running on the work network have priority over applications running on the home network. Such a method and system may operate independently of the eNodeB or have the eNodeB actively controlling the priority among the personas. The scheduler in either the eNodeB or the UE may contain anew input for the significance of the persona. The significance of the persona is taken into account when sending data to and from the UE.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: March 24, 2015
    Assignee: Intel Corporation
    Inventors: Masoud Sajadieh, Andreas Schmidt
  • Publication number: 20150043439
    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: Application
    Filed: December 27, 2013
    Publication date: February 12, 2015
    Applicant: Intel IP Corporation
    Inventors: MASOUD SAJADIEH, HOOMAN SHIRANI-MEHR, DEBDEEP CHATTERJEE, APOSTOLOS PAPATHANASSIOU, JONG-KAE FWU
  • Publication number: 20150003325
    Abstract: Embodiments of system, device, and method configurations for implementing a progressive channel state indicator (CSI) evaluation are disclosed herein. In one example, techniques for increasing the precision of channel feedback information by detecting a best beam index in a progressively scanning grid of beams is deployed in a Long Term Evolution (LTE) network. The use of a progressive CSI technique may be used to improve the robustness of beamforming in network configurations deploying multi-user multiple input multiple output (MU-MIMO) transmission modes.
    Type: Application
    Filed: December 18, 2013
    Publication date: January 1, 2015
    Inventors: Masoud Sajadieh, Hooman Shirani-Mehr