Patents by Inventor Ariela Zeira

Ariela Zeira 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: 20120269237
    Abstract: A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals have a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.
    Type: Application
    Filed: July 9, 2012
    Publication date: October 25, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Younglok Kim, Jung-Lin Pan, Ariela Zeira, Alexander Reznik
  • Publication number: 20120263151
    Abstract: A wireless digital communication system includes a base station in communication with a plurality of user equipment mobile terminals (UEs). The system prioritizes the forwarding of blocks of downlink data to designated ones of the UEs. The system employs adaptive modulation and coding (AM&C) to achieve improved radio resource utilization and provides optimum data rates for user services. Blocks of downlink (DL) data are received by the base station which requests downlink (DL) channel quality measurements only from those mobile terminals (UEs) with pending downlink transmissions. The UEs respond to the request by measuring and reporting DL channel quality to the base station, which then allocates resources such that the UEs will make best use of radio resources. The base station notifies the UEs of the physical channel allocation indicating the modulation/coding rate and allocated slots followed by transmission of blocks of downlink data which are transmitted to the UEs.
    Type: Application
    Filed: June 27, 2012
    Publication date: October 18, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Stephen E. TERRY, Stephen G. DICK, James M. MILLER, Eldad ZEIRA, Ariela ZEIRA
  • Patent number: 8284854
    Abstract: A plurality of data signals are received over an antenna array having a plurality of antenna elements. The data signals are transmitted over a shared spectrum in a wireless communication system. A signal having each of the data signals is received over each antenna element. The plurality of data signals are grouped into a plurality of groups. The received signals of the antenna elements are matched filtered for a first group of the plurality of groups, producing a matched filtered result. Data is jointly detected of the first group using the matched filtered result. An interference correction signal is constructed using the detected data for each antenna element. The interference cancelled result is subtracted from the received signal of each antenna element, producing an interference cancelled result for each antenna element. Data is successively detected for remaining groups using the interference cancelled result for each antenna element.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: October 9, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Jaeyoung Kwak, Jung-Lin Pan, Ariela Zeira
  • Publication number: 20120213206
    Abstract: A wireless hybrid time division multiple access/code division multiple access (TDMA/CDMA) user equipment (UE) includes a signaling receiver and a data detection device in communication with the signaling receiver. The signaling receiver is configured to receive and recover signaled information of code and timeslot assignments of the UE to support an RF communication. The data detection device is configured to recover from the signaling information an identifier of a plurality of assigned timeslots and an indication of a first and last code of a set of consecutive codes. The last code is identified by an identifier associated with the last code.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 23, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Stephen E. Terry, Stephen G. Dick, James M. Miller, Eldad Zeira, Ariela Zeira
  • Patent number: 8249191
    Abstract: A method and apparatus for multi-user detection using equalization and successive interference cancellation is provided. A signal is received in a shared spectrum. Samples of the received signal are produced as a received vector. The received vector is segmented into a plurality of vector segments. For each segment, symbols for a plurality of communications are successively determined by determining symbols for a communication and removing a contribution of that communication from the vector segment. The determined symbols are assembled into a data vector for each communication.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: August 21, 2012
    Assignee: InterDigital Technology Corporation
    Inventor: Ariela Zeira
  • Publication number: 20120207051
    Abstract: A method for reporting channel quality from a user equipment (UE) to a base station is described. The UE derives a channel quality for each of a plurality of downlink resources. The UE transmits channel quality reports in a pattern of time intervals by rotating through the plurality of downlink resources in different time intervals of the pattern, wherein a channel quality report is not transmitted by the UE in each time interval of a frame.
    Type: Application
    Filed: April 23, 2012
    Publication date: August 16, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Stephen E. Terry, Stephen G. Dick, James M. Miller, Eldad Zeira, Ariela Zeira
  • Patent number: 8233501
    Abstract: Data of a transport block set is to be transmitted in a wireless communication system. The wireless communication system uses adaptive modulation and coding and has a physical layer hybrid automatic repeat request mechanism. Segmentation information for potential segmentation of the transport block set is provided. The transport block set is transmitted with a first specified modulation and coding scheme. The transport bock set is received and whether the received transport block set is determined to meet a specified quality. When the specified quality is not met, a repeat request is transmitted. The first specified modulation and coding set is changed to a second specified modulation and coding set. In response to the repeat request, the transmit block set is segmented into a plurality of segments supported by the second specified modulation and coding set in accordance with the provided segmentation information. The segments are transmitted and at least two of the segments are transmitted separately.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: July 31, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Ariela Zeira, Nader Bolourchi
  • Patent number: 8218508
    Abstract: One out of sixteen preamble signatures is selected. A code is produced based on the selected preamble signature. The produced code is phase rotated to produce a processed preamble signature signal. The processed preamble signature signal is used in processing the CDMA RACH signal and the CDMA RACH signal is used to access a CDMA system.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: July 10, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen G. Dick, Charles A. Dennean, Eldad M. Zeira, Kyle Jung-Lin Pan, Sung-Hyuk Shin, Ariela Zeira
  • Patent number: 8219036
    Abstract: A wireless digital communication system includes a base station in communication with a plurality of user equipment mobile terminals (UEs). The system prioritizes the forwarding of blocks of downlink data to designated ones of the UEs. The system employs adaptive modulation and coding (AM&C) to achieve improved radio resource utilization and provides optimum data rates for user services. Blocks of downlink (DL) data are received by the base station which requests downlink (DL) channel quality measurements only from those mobile terminals (UEs) with pending downlink transmissions. The UEs respond to the request by measuring and reporting DL channel quality to the base station, which then allocates resources such that the UEs will make best use of radio resources. The base station notifies the UEs of the physical channel allocation indicating the modulation/coding rate and allocated slots followed by transmission of blocks of downlink data which are transmitted to the UEs.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: July 10, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Stephen G. Dick, James M. Miller, Eldad M. Zeira, Ariela Zeira
  • Patent number: 8218607
    Abstract: A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: July 10, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Younglok Kim, Jung-Lin Pan, Ariela Zeira, Alexander Reznik
  • Patent number: 8199726
    Abstract: In a wireless digital communication system which may employ CDMA technology, a method and system for obtaining channel quality (CQ) measurements for downlink resource allocation wherein a User Equipment (UE) continuously measures received signal code power (RSCP) based on a communication on a reference channel provided by the network. The UE measures timeslot interference signal code power (ISCP) either continuously, by configuration or by rotation and reports downlink CQ. The UE may report the RSCP once and the ISCP per timeslot, or may report some function of the RSCP/ISCP ratio such as modulation parameters or combined coding of all timeslots.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: June 12, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Stephen G. Dick, James M. Miller, Eldad Zeira, Ariela Zeira
  • Publication number: 20120127968
    Abstract: A user equipment (UE) includes circuitry configured to receive control information on a downlink control channel from a base station. The control information indicates an allocation of an uplink channel and the control information is sent in response to the base station determining that the UE is to send an adaptive modulation and coding report. The circuitry is further configured in response to the control information to transmit a communication in the allocated uplink channel in a time interval including at least one time slot. The communication includes an adaptive modulation and coding report, and a transmission power level of the communication is derived from the control information and a pathloss measured by the UE.
    Type: Application
    Filed: January 31, 2012
    Publication date: May 24, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Stephen E. Terry, Stephen G. Dick, James M. Miller, Eldad Zeira, Ariela Zeira
  • Patent number: 8169979
    Abstract: A wireless hybrid time division multiple access/code division multiple access (TDMA/CDMA) user equipment (UE) includes a signaling receiver and a data detection device in communication with the signaling receiver. The signaling receiver is configured to receive and recover signaled information of code and timeslot assignments of the UE to support an RF communication. The data detection device is configured to recover from the signaling information an identifier of a plurality of assigned timeslots and an indication of a first and last code of a set of consecutive codes. The last code is identified by an identifier associated with the last code, and the same set of consecutive codes are assigned to each of the plurality of assigned timeslots.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: May 1, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Stephen G. Dick, James M. Miller, Eldad M. Zeira, Ariela Zeira
  • Publication number: 20120079337
    Abstract: A user equipment comprises a transmitter and an adaptive modulation and coding controller. The transmitter is configured to transmit data over an air interface in a single transmission time interval with a first specified modulation and coding scheme, where the single transmission time interval has a plurality of transport block sets. In response to receiving a repeat request for retransmission of at least one particular transport block set, the transmitter retransmits the at least one of the particular transport block sets. The adaptive modulation and coding controller is configured to change the specified modulation and coding scheme to a second specified modulation and coding scheme, enabling a combining of a particular transport block set transmitted at the first specified modulation and coding scheme with a retransmitted version of the particular transport block set transmitted at the second specified modulation and coding scheme.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 29, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Sephen Terry, Ariela Zeira, Nader Bolourchi
  • Publication number: 20120039209
    Abstract: A method for downlink power control for use in a spread spectrum time division communication system having time slots for communication, implemented in a user equipment, includes receiving data in a command per coded composite transport channel (CCTrCH) transmitted over a plurality of time slots. An interference power for each time slot of the plurality of time slots is measured and a single power command for the entire CCTrCH is transmitted in response to a signal to interference ratio of the received CCTrCH and the measured interference power measurement for each time slot. A subsequent data is received in the CCTrCH communication having a transmission power level for each downlink communication time slot set individually in response to the interference power measurement for that time slot and the single power command for the entire CCTrCH.
    Type: Application
    Filed: October 24, 2011
    Publication date: February 16, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Eldad Zeira, Stephen E. Terry, Ariela Zeira
  • Patent number: 8116220
    Abstract: A method for the simultaneous reception of data from multiple sources having different spreading factors. A plurality of transmission response matrices are generated and grouped together for equal spreading factors. A plurality of spreading factor group matrices are assembled. A base matrix is formed based upon the spreading factor group matrix having a lowest spreading factor. An additional spreading factor group matrix is selected for consideration. Column placement reference index for the base matrix is derived. A reference location for the base matrix is derived. A column set from the selected spreading factor group matrix is derived. The column set is inserted into the base matrix. A total transmission response matrix is assembled.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: February 14, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Younglok Kim, Jung-Lin Pan, Ariela Zeira, Alexander Reznik
  • Patent number: 8116803
    Abstract: A method for determining uplink power level, implemented in a base station, comprises receiving a communication signal over an uplink common control channel. The interference on the uplink common control channel in response to the received communication signal is measured and a channel quality of the uplink common control channel is monitored. A quality margin for the communication signal is provided and transmitted over a downlink control channel.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: February 14, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Stephen G. Dick, James M. Miller, Ariela Zeira, Eldad M. Zeira
  • Patent number: 8085832
    Abstract: Data is estimated of a plurality of received spread spectrum signals by a wireless communication apparatus. The plurality of received communications are received in a shared spectrum. The received communications are sampled to produce a received vector of sequential samples. The received vector is processed to produce a plurality of segments. Each segment is processed separately to estimate data of the received communications.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: December 27, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Kyle Jung-Lin Pan, Ariela Zeira
  • Patent number: 8074140
    Abstract: A user equipment comprises a transmitter and an adaptive modulation and coding controller. The transmitter is configured to transmit data over an air interface in a single transmission time interval with a first specified modulation and coding scheme, where the single transmission time interval has a plurality of transport block sets. In response to receiving a repeat request for retransmission of at least one particular transport block set, the transmitter retransmits the at least one of the particular transport block sets. The adaptive modulation and coding controller is configured to change the specified modulation and coding scheme to a second specified modulation and coding scheme, enabling a combining of a particular transport block set transmitted at the first specified modulation and coding scheme with a retransmitted version of the particular transport block set transmitted at the second specified modulation and coding scheme.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: December 6, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Nader Bolourchi, Ariela Zeira
  • Patent number: 8073067
    Abstract: Data is transferred in a wireless communication system, such as a wireless spread spectrum communication system. A plurality of transmitting antennas are provided. Data is encoded to produce a plurality of data streams for each of the plurality of codes. The plurality of data streams are spread with the plurality of spreading codes, and for each transmitting antenna, one of the spread data streams of each code together is combined to produce a spread data vector. Each transmitting antenna transmits its spread data vector. The transmitted spread data vectors are received by each of a plurality of receiving antennas as a received version, and the data is recovered using the received versions.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: December 6, 2011
    Assignee: InterDigital Technology Corporation
    Inventor: Ariela Zeira