Patents Assigned to InterDigital Technology
  • Patent number: 8769308
    Abstract: A wireless communication device is configured as an in-home node-B (H(e)NB). The H(e)NB is configured to perform a locking function to control modification of carrier and user controlled parameters, and also configured to detect a change in location.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: July 1, 2014
    Assignee: Interdigital Technology Corporation
    Inventors: Rajat P. Mukherjee, Shankar Somasundaram, Ulises Olvera-Hernandez, Yogendra C. Shah, Prabhakar R. Chitrapu, Inhyok Cha
  • Patent number: 8769298
    Abstract: The present invention discloses several methods to strengthen the integrity of entities, messages, and processing related to content distribution as defined by the Open Mobile Alliance (OMA) Digital Rights Management (DRM). The methods use techniques related to the Trusted Computing Group (TCG) specifications. A first embodiment uses TCG techniques to verify platform and DRM software integrity or trustworthiness, both with and without modifications to the DRM rights object acquisition protocol (ROAP) and DRM content format specifications. A second embodiment uses TCG techniques to strengthen the integrity of ROAP messages, constituent information, and processing without changing the existing ROAP protocol. A third embodiment uses TCG techniques to strengthen the integrity of the ROAP messages, information, and processing with some changes to the existing ROAP protocol.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: July 1, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Inhyok Cha, Amit Singhal, Yogendra C. Shah
  • Publication number: 20140177593
    Abstract: A method and apparatus for controlling an optimization of handover procedures between universal terrestrial radio access (UTRA) release 6 (R6) cells and UTRA release 7 (R7) cells are disclosed. When a wireless transmit/receive unit (WTRU) is moving between an R6 cell and an R7 cell, or between R7 cells, a handover is initiated from a source Node-B to a target Node-B. In the R7 cell, the enhanced medium access control (MAC) functionality including flexible radio link control (RLC) protocol data unit (PDU) size and high speed MAC (MAC-hs) segmentation and multiplexing of different priority queues are supported. After the handover, a MAC layer and/or an RLC layer are reconfigured or reset based on functionality supported by the target Node-B.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 26, 2014
    Applicant: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Diana Pani, Christopher Cave, Paul Marinier
  • Publication number: 20140177565
    Abstract: A method and apparatus for uplink transmission over a non-contentious shared feedback channel are disclosed, wherein the parameters of the uplink transmission are determined by the parameters of a downlink transmission. A new uplink channel, called a physical shared uplink feedback channel (PSUFCH) is used for uplink transmission such as feedback information in response to a downlink transmission on a fast shared data channel. The content of the feedback information may be general, e.g. an ACK/NACK or a channel quality indicator (CQI). The PSUFCH is transmitted using power ramping that terminates upon reception of a downlink ACK (DLACK) from a Node-B. No ambiguity resolution is required due to the non-contentious and deterministic mapping of the uplink channel resources.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: InterDigital Technology Corporation
    Inventors: Eldad M. Zeira, Alexander Reznik, Paul Marinier, Sudheer A. Grandhi, Christopher Cave, Rocco Di Girolamo
  • Publication number: 20140177595
    Abstract: A method and apparatus for handling cell reselections and transitions includes executing a cell reselection. A medium access control (MAC)-ehs reset is performed.
    Type: Application
    Filed: February 26, 2014
    Publication date: June 26, 2014
    Applicant: InterDigital Technology Corporation
    Inventors: Rocco Di Girolamo, Paul Marinier, Diana Pani, Christopher Cave
  • Patent number: 8761124
    Abstract: Apparatus and methods for wireless communication transmission power control are provided. Determination of gain factors and adjustments for physical channel reconfiguration in the context of transmission power control are addressed. Preferably, implementation is in conjunction with communication systems in which wireless communications are conducted between wireless transmit receive units (WTRUs) using multiple channels that are concurrently transmitted.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: June 24, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Ana Lucia Iacono, John M. McNally, Charles A. Dennean, Janet A. Stern-Berkowitz
  • Publication number: 20140169306
    Abstract: The present invention relates to a method for confirming the delivery of a data packet in a mesh network by sending an acknowledgement (ACK) to an ingress mesh point (IMP). A mesh network comprises a plurality of mesh points that are wirelessly linked together. A data packet sent by a station (STA) is received by an IMP. A MAC frame is generated for transmission of the data packet and the frame is forwarded to an egress mesh point (EMP) in order to provide a service by the mesh network. The MAC frame includes a field comprising an IMP address and an EMP address. When the EMP, (or optionally an intermediate mesh point), receives a data packet successfully, the EMP or the intermediate mesh point sends an ACK to the IMP or preceding mesh point.
    Type: Application
    Filed: February 21, 2014
    Publication date: June 19, 2014
    Applicant: InterDigital Technology Corporation
    Inventors: Catherine Livet, Guang Lu, Juan Carlos Zuniga
  • Patent number: 8756427
    Abstract: The present invention is related to a wireless transmit/receive unit (WTRU) for providing advanced security functions. The WTRU includes trusted platform module (TPM) for performing trusted computing operations; and a secure time component (STC) for providing a secure measurement of a current time. The STC and the TPM are integrated to provide accurate trusted time information to internal and external to the WTRU. The STC may be located on an expanded a subscriber identity module (SIM), on the WTRU platform, or two STCs may be used, one in each location. Similarly, the TPM may be located on an expanded SIM, on the WTRU platform, or two TPMs may be used, one in each location. Preferably, the STC will include a real time clock (RTC); a tamper detection and power failure unit; and a time report and sync controller.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: June 17, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Yogendra C. Shah, Inhyok Cha
  • Patent number: 8750312
    Abstract: A method for multicasting a packet begins by providing a buffer for each of two user equipments (UEs) in communication with a base station. A determination is made whether there is a previously unsent packet at the base station. A second determination is made whether both UE buffers are non-empty. A non-empty buffer is flushed if there is no previously unsent packet and if one of the buffers is non-empty. A packet is selected to be transmitted if there is a previously unsent packet or if both buffers are non-empty. The buffers are updated based on feedback received from the UEs.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: June 10, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Chunxuan Ye, Alexander Reznik, Yogendra C. Shah, Philip J. Pietraski, Robert A. DiFazio
  • Patent number: 8750184
    Abstract: A wireless transmit/receive unit includes a receiver and a processor. The receiver is configured to receive a plurality of high-speed shared control channels (HS-SCCHs), wherein the plurality of HS-SCCHs are received over a plurality of discrete time intervals. The processor is configured to instruct the receiver to receive all of the plurality of HS-SCCHs during one of the plurality of discrete time intervals.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: June 10, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Marian Rudolf, Stephen G. Dick, Liliana Czapla
  • Patent number: 8750321
    Abstract: A method and system for conveying backhaul link information for intelligent selection of a mesh access point (MAP) in a mesh network are disclosed. The mesh network includes a plurality of MAPs. The MAPs send backhaul link information regarding backhaul connections between each MAP and any interconnections in the mesh network to a wireless transmit/receive unit (WTRU). The WTRU then determines a performance value with respect to the MAPs based on the backhaul link information and selects one of the MAPs to associate with based on the performance value. The WTRU may send information about interconnection needs of the WTRU to the MAPs, and the MAPs may generate the backhaul link information based on the interconnection needs of the WTRU.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: June 10, 2014
    Assignee: InterDigital Technology Corporation
    Inventor: Vincent Roy
  • Patent number: 8750932
    Abstract: A method and apparatus for protecting high throughput (HT) stations (STAs) are disclosed. In one embodiment, a physical layer (PHY) legacy preamble transmitted by one STA is decoded by another STA that does not use a legacy preamble. In another embodiment, one STA is identified by another STA by using bits in the preamble of a packet to indicate which PHY type will be used in the remaining portion of the packet. In yet another embodiment, one STA sends ready-to-send (RTS)/clear-to-send (CTS) or CTS-to-self messages for reserving a medium in the presence of another STA of a different type than the one STA. In yet another embodiment, an access point (AP) transmits a beacon or an association message including a capability information element (IE) that indicates operation or support for a legacy preamble, HT STA preambles and a medium access control (MAC) packet transmission with HT protection mechanisms.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: June 10, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Eldad M. Zeira, Stephen E. Terry, Joseph S. Levy, Sudheer A. Grandhi, Arty Chandra
  • Publication number: 20140153467
    Abstract: An apparatus and methods are provided for paging in a HSDPA connected mode CELL_PCH or URA_PCH state. Preferably, a WTRU is configured to select various PICH information that is broadcast by a base station. The WTRU is preferably configured to receive paging messages, based on the selected PICH information. In one embodiment, a preferred WTRU is configured to receive paging messages, based on a PICH, a HS-SCCH, and a HS-PDSCH. In another embodiment, a preferred WTRU is configured to receive paging messages, based on a PICH and a HS-PDSCH. In both embodiments, a time delay parameter is preferably used so that the WTRU may listen for either the HS-SCCH or HS-PDSCH for a period of time and return to a sleep mode if no paging message is received.
    Type: Application
    Filed: February 4, 2014
    Publication date: June 5, 2014
    Applicant: InterDigital Technology Corporation
    Inventors: Rocco Di Girolamo, Diana Pani, Christopher Cave, Alexander Reznik
  • Publication number: 20140153395
    Abstract: A system for controlling congestion in a code division multiple access system with multi-user detection capabilities is disclosed. The system includes at least one user equipment, a base station, and a radio network controller. Each user equipment includes a receiver having multi-user detection capabilities. The base station includes a receiver having multi-user detection capabilities, an intra-cell interference measuring device, and an inter-cell interference measuring device. The radio network controller includes a radio resource management device configured to control congestion based on measurements taken by the base station.
    Type: Application
    Filed: November 22, 2013
    Publication date: June 5, 2014
    Applicant: InterDigital Technology Corporation
    Inventor: Juan Carlos Zuniga
  • Patent number: 8744496
    Abstract: An apparatus and methods are provided for paging in a HSDPA connected mode CELL_PCH or URA_PCH state. Preferably, a WTRU is configured to select various PICH information that is broadcast by a base station. The WTRU is preferably configured to receive paging messages, based on the selected PICH information. In one embodiment, a preferred WTRU is configured to receive paging messages, based on a PICH, a HS-SCCH, and a HS-PDSCH. In another embodiment, a preferred WTRU is configured to receive paging messages, based on a PICH and a HS-PDSCH. In both embodiments, a time delay parameter is preferably used so that the WTRU may listen for either the HS-SCCH or HS-PDSCH for a period of time and return to a sleep mode if no paging message is received.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: June 3, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Christopher R. Cave, Rocco DiGirolamo, Diana Pani, Alexander Reznik
  • Patent number: 8743710
    Abstract: In a wireless communication system including a wireless transmit/receive unit (WTRU) which transfers data to a Node-B, data transmission parameters such as modulation and coding scheme (MCS) and transport block set (TBS) size are dynamically adjusted on a transmission time interval (TTI) basis, and hybrid-automatic repeat request (H-ARQ) processes used to control the transfer of data between the WTRU and the Node-B are initiated and released, as required. The WTRU transmits and retransmits data to the Node-B through an enhanced uplink (EU) dedicated channel (E-DCH) in accordance with data feedback information received from the Node-B. The WTRU queues data for transmission, and determines a transmission status of the data. The transmission status is set to one of “new transmission,” “successful transmission,” “retransmission” and “restarted transmission.” For each TTI, the WTRU initiates an EU transmission to the Node-B which identifies the assigned H-ARQ process, TBS size and MCS.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: June 3, 2014
    Assignee: InterDigital Technology Corporation
    Inventor: Stephen E. Terry
  • Publication number: 20140148180
    Abstract: A method for admission control of control plane signaling requests includes receiving a signaling request. Upon receipt of the signaling connection request, a first determination is performed to determine whether to provide admission to common resources. When the first determination is negative, a second determination is performed to determine whether to provide admission to dedicated resources. When the second determination is negative, the signaling request is rejected. When the second determination is positive, the request is admitted to dedicated resources. When the first determination is positive, a third determination is performed to determine whether the quality of the signaling request is high or low. If the quality of the request is high, the signaling request is admitted to common resources. When the quality is low, a fourth determination is performed to determine whether to provide admission to dedicated resources.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 29, 2014
    Applicant: InterDigital Technology Corporation
    Inventor: Christopher R. Cave
  • Patent number: 8737920
    Abstract: A method and apparatus for managing radio resources in one or more wireless communication networks. At least one radio resource manager (RRM) is provided within a network node, or as an independent entity. The RRM monitors performance on wireless communication links of the network(s) and interacts with nodes associated with those links to change the configuration on a particular wireless communication link if its performance (i.e., quality) falls below an established threshold. Information regarding current resource usage of the network is sent to the RRM by the nodes. Each of the nodes may send a quality report to the RRM including wireless communication link quality measurements and performance statistics. Alternatively, the RRM may perform the wireless communication link quality measurements. The RRM facilitates the broadcasting of information regarding current resource usage of one network to other networks to avoid collisions and interference.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: May 27, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Juan Carlos Zuniga, Marian Rudolf, Shamim Akbar Rahman
  • Patent number: 8738062
    Abstract: A system, components and methods provide controlled transmitter power in a wireless communication system in which both dedicated and shared channels are utilized. A network unit preferably has a receiver for receiving UL user data from WTRUs on UL DCHs and at least one UL SCH and a processor for computing target metrics for UL DCHs based on the reception of signals transmitted by a WTRU on an UL DCH associated with an UL SCH usable by the WTRU. A shared channel target metric generator is provided that is configured to output a respective UL SCH target metric derived from each computed UL DCH target metric.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: May 27, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen G. Dick, Marian Rudolf
  • Patent number: 8737363
    Abstract: A subscriber unit for use in a multiple access spread-spectrum communication system includes a spread spectrum radio interface, responsive to a rate function signal from a base station, and first and second despreaders. The base station assigns the rate function spread-spectrum message channels and the first despreader recovers and modifies an information signal one of the spread spectrum message channels. The information channel mode is then modified for processing by the second despreader, with the second despreader supporting a different information signal rate. The subscriber unit has a capability of communicating with a dynamically changing a transmission rate of an information signal which includes multiple spread spectrum message channels.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: May 27, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Fatih M. Ozluturk, Alexander M. Jacques, Gary R. Lomp, John Kowalski