Patents Assigned to InterDigital Technology
  • Patent number: 9438330
    Abstract: Method and apparatus for receiving high speed downlink shared channel (HS-DSCH) transmissions are disclosed. An HS-DSCH medium access control (MAC-ehs) entity receives MAC-ehs protocol data units (PDUs) via a high speed downlink shared channel (HS-DSCH) while in one of Cell_FACH, Cell_PCH, and URA_PCH states. The reordering PDUs included in the MAC-ehs PDUs may be sent to a next processing entity without performing reordering of the PDUs. A certain reordering queue may enter a suspend state upon occurrence of a triggering event and MAC-ehs PDUs distributed to the reordering queue in the suspend state may be forwarded to the next processing entity without performing reordering. MAC-ehs reset procedure may be extended for a certain transmission such that the MAC-ehs reset is performed after receiving a MAC-ehs PDU in a target cell.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: September 6, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Paul Marinier, Diana Pani, Christopher R. Cave, Rocco DiGirolamo, Stephen E. Terry
  • Patent number: 9432903
    Abstract: A method and apparatus for cell update while in a Cell_FACH state are disclosed. After selecting a target cell, system information is read from the target cell including high speed downlink shared channel (HS-DSCH) common system information. A radio network temporary identity (RNTI) received in a source cell is cleared and a variable HS_DSCH_RECEPTION is set to TRUE. An HS-DSCH medium access control (MAC-hs) entity is configured based on the HS-DSCH common system information. High speed downlink packet access (HSDPA) transmission is then received in the target cell. A CELL UPDATE message is sent to notify of a cell change. The HSDPA transmission may be received using a common H-RNTI broadcast in the system information, a reserved H-RNTI as requested in a CELL UPDATE message, or a temporary identity which is a subset of a U-RNTI. The MAC-hs entity may be reset.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 30, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Diana Pani, Paul Marinier, Rocco DiGirolamo, Christopher R. Cave
  • Patent number: 9432819
    Abstract: A method and a wireless transmit/receive unit (WTRU), including a universal subscriber identity module (USIM), for identifying a closed subscriber group (CSG) cell are disclosed. The WTRU receives a broadcast from a cell including a cell identifier (ID). If the cell ID is associated with a CSG cell, the WTRU determines whether the CSG ID is programmed in the USIM. The cell broadcast may include a single bit information element (IE) indicating that the cell is a CSG cell. If the cell ID is a CSG ID, the cell ID may further include a plurality of fields which indicate at least one of a country, a region, an operator, and a home evolved Node-B (HeNB) number. The cell broadcast may further include a bit indicating whether the CSG cell is public or private. The cell broadcast may further include a bit indicating that emergency calls are allowed from all users.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: August 30, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Rajat P. Mukherjee, Mohammed Sammour, Shankar Somasundaram, James M. Miller, Jin Wang
  • Patent number: 9432362
    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: June 6, 2014
    Date of Patent: August 30, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Yogendra C. Shah, Inhyok Cha
  • Patent number: 9426822
    Abstract: A method and wireless transmit/receive unit (WTRU) for transmitting data over an enhanced uplink (EU) channel is disclosed. The WTRU receives a scheduled grant and at least one non-scheduled grant. The WTRU transmits a medium access control for EU channel (MAC-e) protocol data unit (PDU) over an EU channel. The MAC-e PDU includes multiplexed data. The multiplexed data includes scheduled data. An amount of the multiplexed data is not greater than a size of a largest supported EU transport format combination (E-TFC) size that does not exceed a size based on the received scheduled grant, the received at least one non-scheduled grant, and a power offset. The MAC-e PDU is transmitted based on a selected E-TFC. The selected E-TFC is a smallest E-TFC that supports the multiplexed data of the MAC-e PDU.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: August 23, 2016
    Assignee: InterDigital Technology Corporation
    Inventor: Stephen E. Terry
  • Patent number: 9420468
    Abstract: A wireless transmit receive unit (WTRU) is configured to receive unciphered and ciphered messages. The unciphered messages include identity requests, authentication requests, non-access stratum (NAS) security mode commands and tracking area update responses. The ciphered messages may come from the NAS and a Radio Resource Controller (RRC). The messages are ciphered using security keys.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: August 16, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Rajat P. Mukherjee, Peter S. Wang, Mohammed Sammour, Shankar Somasundaram
  • Patent number: 9420550
    Abstract: A method and apparatus for power control in a wireless communication involves establishing at least two orthogonal sub-channels within a channel for communication and controlling transmitted power in each sub-channel independently.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 16, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Prabhakar R. Chitrapu, Behrouz Aghili, Stephen G. Dick
  • Publication number: 20160234823
    Abstract: A WTRU receives a control message intended for the WTRU in a shared physical radio resource space in a transmission time interval (TTI) monitored by the WTRU. The WTRU determines whether the control message is intended for the WTRU based on WTRU identity-masked cyclic redundancy check bits. The WTRU processes the control message. The control message has radio resource assignment information and a separate indication indicating whether the control message is a type of control message associated with an uplink or a downlink transmission. The WTRU processes a downlink transmission received in assigned radio resources in the TTI on a condition that the indication indicates that the control message type is associated with a downlink transmission. The WTRU transmits an uplink transmission in assigned radio resources in a subsequent TTI on a condition that the indication indicates that the control message type is associated with an uplink transmission.
    Type: Application
    Filed: April 20, 2016
    Publication date: August 11, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Marian Rudolf, Stephen G. Dick, Philip J. Pietraski
  • Publication number: 20160227497
    Abstract: A method and apparatus for enabling multi-band transmission includes receiving a beacon on a first radio band and receiving the beacon on a second radio band. The beacon includes synchronization information for transmission on the first and second radio bands.
    Type: Application
    Filed: April 5, 2016
    Publication date: August 4, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Juan Carlos Zuniga, Sudheer A. Grandhi, Mohammed Sammour, Catherine M. Livet
  • Publication number: 20160227498
    Abstract: A method and apparatus for synchronization in an orthogonal frequency division multiple access (OFDMA) evolved universal terrestrial radio access (E-UTRA) system including at least one base station and a plurality of wireless transmit/receive units (WTRUs). A secondary synchronization channel (S-SCH) symbol is generated to include cell-specific information. The S-SCH symbol is mapped to the center of the available bandwidth of the system. In one embodiment, the S-SCH symbol is transmitted on different subcarriers at different sectors in the system. In another embodiment, the S-SCH symbol is transmitted on the same subcarriers at different sectors in the system.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Guodong Zhang, Kyle Jung-Lin Pan, Allan Yingming Tsai
  • Publication number: 20160219468
    Abstract: A method and system for the UE and RNC to reduce transmission latency and potentially prevent loss of PDUs upon a MAC-hs layer reset. The RNC generates a radio resource control (RRC) message with a MAC-hs reset indication. The MAC reset indication requires the UE to flush buffers for configured HARQ processes, disassemble MAC protocol data units (PDUs) in the reordering buffers, deliver MAC-d PDUs to a MAC-d layer, and configure the MAC-hs to receive new data.
    Type: Application
    Filed: April 4, 2016
    Publication date: July 28, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Yi-Ju Chao
  • Publication number: 20160219542
    Abstract: Methods and systems for receiving a primary and secondary synchronization signal from a cell are provided. The secondary synchronization signal may be derived from at least one of a set of sequences and received based on the timing of the received primary synchronization signal. Determining a time slot within a frame of the received secondary synchronization signal and a group of the cell is provided, wherein the time slot and the group are determined by at least one sequence of the secondary synchronization signal and at least one carrier out of a plurality of carriers used for one sequence out of the at least one sequence of the secondary synchronization signal. Determining a frame timing and a sequence used by the cell, based on the received primary synchronization signal and the secondary synchronization signal is further provided.
    Type: Application
    Filed: April 1, 2016
    Publication date: July 28, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Nadir Sezgin, Fatih M. Ozluturk
  • Patent number: 9402204
    Abstract: A wireless transmit receive unit and methods for code division multiple access telecommunications are disclosed that process data in a physical layer and a medium access control (MAC) layer. The physical and MAC layers communicate data between each other via transport channels. The transport channels are associated with logical channels. Logical-channel data for the transport channels is provided in data units having a bit size evenly divisible by an integer N. The respective logical channels associated with a transport channel utilize MAC headers that have a selected modulo N bit size such that there is bit alignment of the MAC headers of all the logical channels associated with a particular transport channel.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: July 26, 2016
    Assignee: InterDigital Technology Corporation
    Inventor: Stephen E. Terry
  • Patent number: 9398542
    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: June 20, 2014
    Date of Patent: July 19, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Ana Lucia A. Pinheiro, John M. McNally, I, Charles A. Dennean, Janet A. Stern-Berkowitz
  • Patent number: 9398524
    Abstract: A method and apparatus for uplink (UL) starvation avoidance includes determining a current buffer status information. The current buffer status information is reported to an evolved Node B (eNB). A grant that includes a determination of a number of tokens a wireless transmit/receive unit (WTRU) may accumulate is received from the eNB.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: July 19, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Jin Wang, Mohammed Sammour, Peter S. Wang, Shankar Somasundaram, Stephen E. Terry
  • Patent number: 9397789
    Abstract: A radio access network comprises a serving radio network controller (S-RNC). The S-RNC receives successfully received medium access control (MAC) packet data units (PDUs), discards duplicates of MAC PDUs, reorders the non-discarded MAC PDUs based on serial numbers of the MAC PDUs and delivers the MAC PDUs to a radio link control protocol layer. A controlling radio network controller (C-RNC) provides information to Node-Bs under its control for use in scheduling uplink transmissions. A plurality of Node-Bs schedule uplink transmissions in response to the information provided by its C-RNC, transmit scheduling information to user equipments of its cells, receive MAC PDUs from user equipments of its cells using hybrid automatic repeat request and forward the successfully received MAC PDUs to an associated S-RNC.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: July 19, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Guodong Zhang, Stephen E. Terry, Stephen G. Dick
  • Publication number: 20160205582
    Abstract: A method and apparatus for radio resource control (RRC) messaging. A method in a wireless communication system includes receiving, at a wireless transmit/receive unit (WTRU) an RRC change command including a plurality of commands from a Node B and receiving, at the Node B, an RRC change response from the WTRU, wherein the RRC change command includes a command for performing a measurement gap configuration procedure and a command for performing a measurement gap activation procedure.
    Type: Application
    Filed: March 24, 2016
    Publication date: July 14, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Shankar Somasundaram, Ulises Olvera-Hernandez
  • Publication number: 20160205150
    Abstract: Method and apparatus delivering voice/data services within a piconet operating over a limited range or over a WLAN communicating with 3GPP devices by reformatting data into IP format before delivering to the WLAN. The service is short message service (SMS). Upon receipt of an SMS message, relevant routing information is retrieved. A PDGW address for the SMS message is identified and is sent to the PDGW address which identifies the WLAN user equipment (UE) for receiving the SMS and reformats the SMS message into IP format (text or encapsulation) for delivery to the UE. A protocol architecture is provided for SMS delivery over WLANs, in particular, for UMTS/CDMA based SMS over WLAN through two alternative mechanisms, i.e., SMS tunneling and SMS proxy, for protocols for the delivery of SMS across the WLAN. The invention enhances standard 802.11 in the context of UMTS and CDMA 2000; as well as other scenarios.
    Type: Application
    Filed: March 22, 2016
    Publication date: July 14, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Kamel M. Shaheen, Prabhakar R. Chitrapu, Brian G. Kiernan, Debashish Purkayastha
  • Publication number: 20160205688
    Abstract: A wireless transmit/receive unit (WTRU) receives radio resource assignment information over a physical downlink control channel. The WTRU determines whether the radio resource assignment information is intended for the WTRU based on WTRU identity-masked (ID-masked) cyclic redundancy check (CRC) bits. The WTRU determines whether the radio resource assignment information is for an uplink shared channel or a downlink shared channel. The WTRU utilizes the radio resource assignment information to transmit data over the uplink shared channel on a condition that the radio resource assignment information is determined to be for the uplink shared channel. The data is transmitted over the uplink shared channel a predetermined number of time slots after reception of the radio resource assignment information.
    Type: Application
    Filed: March 21, 2016
    Publication date: July 14, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Marian Rudolf, Stephen G. Dick, Philip J. Pietraski
  • Patent number: 9391735
    Abstract: A method and an apparatus for sending a signal on a contentious feedback channel for a downlink shared service and for estimating a number of wireless transmit/receive units (WTRUs) are disclosed. When a transmission criterion associated with a physical random access feedback channel (P-RAFCH) is satisfied, a physical resource is randomly selected among a plurality of physical resources assigned for the P-RAFCH and a pre-configured signal is sent using the selected physical resource. A Node-B receives the pre-configured signal from a plurality of WTRUs and calculates a number of the WTRUs based on a number of used physical resources. The transmission criterion is at least one of successful reception of a data packet on a downlink physical channel, successful reception of a data block on a data service, reception of a signaling command, occurrence of a measurement event, and failure to receive a transmission after a specified number of times.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: July 12, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Alexander Reznik, Eldad M. Zeira, Christopher R. Cave, Paul Marinier