Patents Assigned to InterDigital Technology
  • Publication number: 20150373581
    Abstract: Methods and apparatus for versatile medium access control (MAC) multiplexing in evolved HSPA are disclosed. More particularly, methods for downlink optimization of the enhanced high speed MAC (MAC-ehs) entity and uplink optimization of the MAC-i/is entity are disclosed. Apparatuses for using the optimized downlink and uplink MAC entities are also disclosed.
    Type: Application
    Filed: August 25, 2015
    Publication date: December 24, 2015
    Applicant: InterDigital Technology Corporation
    Inventors: Paul Marinier, Diana Pani, Stephen E. Terry, Sudheer A. Grandhi
  • Patent number: 9219522
    Abstract: A code division multiple access communication system has a base station with a plurality of transmitting antennas. From each transmitting antenna of the base station, a pilot signal is transmitted having a different chip sequence than the other transmitting antenna. At a user equipment, the transmitted pilot signals are received from each transmitting antenna. A weight adjustment is derived in response to the received transmitted pilot signals. The user equipment transmits the weight adjustment to the base station. The transmitted weight adjustment is received from the user equipment. A data signal is processed to produce a plurality of versions of the data signal. At least a portion of each processed data signal has a different chip sequence than the other processed data signal version. At least one processed data signal version is weighted by a weight value adjusted in response to the received transmitted weight adjustment.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: December 22, 2015
    Assignee: InterDigital Technology Corporation
    Inventor: David K. Mesecher
  • Publication number: 20150365916
    Abstract: A paging frame may be determined from a combination of a first value divided by a second value and a WTRU identifier modulo the second value. The WTRU identifier may be related to an international mobile subscriber identification (IMSI) value of the WTRU.
    Type: Application
    Filed: August 25, 2015
    Publication date: December 17, 2015
    Applicant: InterDigital Technology Corporation
    Inventors: Peter S. Wang, Stephen E. Terry, Jin Wang
  • Patent number: 9215727
    Abstract: A code division multiple access (CDMA) communication device comprises a medium access controller (MAC) configured to receive data from a plurality of channels. Each channel is associated with a priority and an identifier. The MAC is further configured to multiplex the data of the plurality of channels for transmission over a CDMA channel based on the priority.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: December 15, 2015
    Assignee: InterDigital Technology Corporation
    Inventor: Stephen E. Terry
  • Patent number: 9210663
    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: June 11, 2013
    Date of Patent: December 8, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Prabhakar R. Chitrapu, Behrouz Aghili, Stephen G. Dick
  • Patent number: 9209944
    Abstract: A method and apparatus for transmitting enhanced uplink (EU) data is disclosed. Configuration parameters for EU operation are received, including a priority associated with each MAC-d flow and a maximum number of H-ARQ transmissions associated with each MAC-d flow. A H-ARQ process to use for transmission for a next TTI is identified. On a condition that the identified H-ARQ process is available for new data for the next TTI, data is selected for transmission over the EU channel based on MAC-d flow priority, a transmission status is set to indicate a new transmission, and the selected data is transmitted in accordance with the identified H-ARQ process. On a condition that the identified H-ARQ process is not available for new data for the next TTI, the transmission status is set to indicate a retransmission, and data associated with the identified H-ARQ process is retransmitted.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: December 8, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Guodong Zhang
  • Patent number: 9203580
    Abstract: In a wireless communication system comprising at least one evolved Node-B (eNB) and a plurality of wireless transmit/receive units (WTRUs), a non-contention based (NCB) channel is established, maintained, and utilized. The NCB channel is allocated for use by one or more WTRUs in the system for utilization in a variety of functions, and the allocation is communicated to the WTRUs. The wireless communication system analyzes the allocation of the NCB channel as required, and the NCB channel is reallocated as required.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: December 1, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Jin Wang, Arty Chandra, John S. Chen, Guodong Zhang
  • Patent number: 9198082
    Abstract: A method and system for autonomous channel coordination for a wireless distribution system (WDS) are disclosed. A wireless communication system includes a plurality of access points (APs) and the APs communicate each other via a WDS. A coordinated channel group (CCG) of a plurality of member APs is established. The member APs of the CCG camp on a WDS channel used for the WDS among the member APs of the CCG. One AP among the member APs of the CCG is designated as a master AP. The master AP coordinates with other member APs of the CCG for selecting and configuring the WDS channel for the CCG and addition and deletion of member APs. By allowing APs to define a CCG, changes of the WDS channel are performed autonomously while maintaining connectivity.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: November 24, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Paul Marinier, Marian Rudolf, Maged M. Zaki, Vincent Roy
  • Patent number: 9191837
    Abstract: An access point in a wireless local area network may receive an information request from a station associated with the access point. The information request is requesting information about a second beacon transmission associated with a service set identifier (SSID) different from an SSID of the access point. The access point includes a timing information device configured to generate an information response for a beacon signal associated with the SSID different from the SSID of the access point. The information response may include a time difference, relative to a beacon signal sent by the access point, for transmission of the beacon signal associated with the SSID different from the SSID of the access point. The time difference may be an offset in timing units. The access point also includes a transmitter configured to transmit the information response to the station in response to receiving the information request.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: November 17, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Vincent Roy, Paul Marinier, Marian Rudolf, Frank La Sita, Christopher Cave, Athmane Touag, Angelo Cuffaro
  • Publication number: 20150327206
    Abstract: A multiple wireless access technology capable (WAT-capable) wireless transmit receive unit (WTRU) includes a registration message generator configured to generate a registration message indicating that the WTRU is configured to communicate using an IEEE 802.11x technology. The WTRU also includes a transmitter configured to send the registration message via an IEEE 802.11x WLAN to a cellular network during registration with the cellular network, and a receiver configured to receive services from the cellular network via the WLAN. The registration message further indicates that the WTRU is configured to receive Short Message Service (SMS) messages from the cellular network via the WLAN. The WTRU receiver receives services that include Short Message Service (SMS) messages.
    Type: Application
    Filed: July 23, 2015
    Publication date: November 12, 2015
    Applicant: InterDigital Technology Corporation
    Inventors: Shamim A. RAHMAN, Kamel M. SHAHEEN
  • Publication number: 20150326306
    Abstract: A method and apparatus for a wireless receiver are described herein. A user equipment (UE) may process control information in a first time slot of a transmission time interval (TTI) having a plurality of time slots. The UE may, in response to the control information including valid resource assignment information for the UE, receive data in the first time slot and another time slot of the TTI. The UE may, in response to the control information not including valid resource assignment information for the UE, discontinue reception in the TTI. The UE may discontinue reception for another time slot of the TTI. The circuitry may be further configured to receive a transmission indicating that a base station will discontinuously transmit to the UE. The control information may be processed prior to processing any of the data symbols of the TTI.
    Type: Application
    Filed: May 1, 2015
    Publication date: November 12, 2015
    Applicant: InterDigital Technology Corporation
    Inventors: Robert A. DiFazio, John W. Haim
  • Patent number: 9185617
    Abstract: A method and system for supporting an evolved universal mobile telecommunication systems (UMTS) terrestrial radio access network (E-UTRAN) are disclosed. The system includes a wireless transmit/receive unit (WTRU), a UTRAN and an E-UTRAN. The UTRAN sends to the WTRU a list of available radio access technologies in a coverage area of the UTRAN. The list includes information related to the E-UTRAN. The WTRU receives the list and may initiate a handoff based on the list. The WTRU then sends its multi-mode/multi-RAT capability information including the E-UTRAN capability to the UTRAN. The UTRAN then sends a measurement capability message to the WTRU. The measurement capability message includes parameters necessary for performing measurements on an E-UTRAN channel. The WTRU performs measurements based on the measurement capability message and reports measurement results to the UTRAN. The UTRAN may initiate a handoff to the E-UTRAN based on the measurement results.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: November 10, 2015
    Assignee: InterDigital Technology Corporation
    Inventor: Kamel M. Shaheen
  • Patent number: 9185739
    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: Grant
    Filed: February 26, 2014
    Date of Patent: November 10, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Rocco Di Girolamo, Paul Marinier, Diana Pani, Christopher Cave
  • Patent number: 9185708
    Abstract: A method and apparatus for adjusting power grants in wireless communications. Multiple power grant tables are stored and one or more tables are designated during communication.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: November 10, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: In H. Kim, Paul Marinier, Eldad M. Zeira, Christopher Cave
  • Patent number: 9185685
    Abstract: A method and apparatus for minimizing redundant enhanced uplink (EU) allocation requests and fault-isolating EU transmission failures that occur between a wireless transmit/receive unit (WTRU) and a Node-B. The WTRU transmits an enhanced dedicated channel (E-DCH) allocation request to the Node-B over an uplink (UL) EU channel. In one embodiment, if E-DCH allocation cannot be provided within a predetermined time period, the Node-B sends an acknowledgement message to the WTRU via a downlink (DL) EU signaling channel without sending E-DCH allocation information. The request is queued in the Node-B and the WTRU refrains from transmitting the same request until after the time period expires or resources become available. In another embodiment, appropriate actions are taken to correct EU transmission failures by determining whether an E-DCH allocation request was unsuccessfully delivered via the UL EU channel or whether channel allocation information was unsuccessfully delivered via the DL EU signaling channel.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: November 10, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Guodong Zhang, Stephen G. Dick
  • Patent number: 9178580
    Abstract: A method and apparatus for selecting an antenna mapping in multiple-in/multiple-out (MIMO) enabled wireless communication networks. A candidate set of currently available antenna mappings is determined based upon measured long term channel conditions. An antenna mapping is selected from the candidate set, and the mapping is calibrated with a selected antenna mapping of a receiving wireless transmit/receive unit (WTRU). When the selected mappings are calibrated, packet data transmission begins. In an alternative embodiment, a calibration training frame (CTF) is used to calibrate multiple antenna mappings simultaneously or sequentially. Also disclosed are physical layer and medium access control layer frame formats for implementing antenna mapping selection according to the invention.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: November 3, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Inhyok Cha, Eldad M. Zeira, Keith Richard Baldwin
  • Patent number: 9173204
    Abstract: A wireless communication method and system for controlling an enhanced uplink (EU) radio access bearer (RAB). The wireless communication system includes at least one wireless transmit/receive unit (WTRU), at least one Node-B and a radio network controller (RNC). The RNC configures an EU RAB to operate on an enhanced dedicated channel (E-DCH). At least one of the WTRU and the Node-B report EU traffic statistics and EU performance statistics to the RNC. The RNC then adjusts the configuration of the EU RAB in accordance with the received EU traffic statistics, the EU performance statistics, and information collected by the RNC itself.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: October 27, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Guodong Zhang, James M. Miller, Stephen G. Dick
  • Patent number: 9173176
    Abstract: A method and wireless multi-cell communication system for providing high speed downlink packet access (HSDPA) services. The system includes a radio network controller (RNC) in communication with a plurality of base stations. The RNC sends a control signal to at least one base station having a plurality of timeslots, e.g., in a time division duplex (TDD) system and/or frames including transmission timing intervals (TTIs), e.g., in a frequency division duplex (FDD) system assigned thereto for the establishment of HSDPA channels. The control signal indicates a maximum allowed HSDPA transmit power for each of the timeslots and/or TTIs. The base station sends a feedback signal to the RNC indicating the results of measurements of the power of the transmitted HSDPA timeslots and/or TTIs during a predetermined time period.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: October 27, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Marian Rudolf, James M. Miller
  • Patent number: 9166760
    Abstract: A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs).
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: October 20, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Robert L. Olesen, Jin Wang, Arty Chandra
  • Patent number: 9167602
    Abstract: A method and apparatus for assigning radio resources and controlling parameters for transmission over a random access channel in wireless communications by enhancing a random access channel is disclosed.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: October 20, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Christopher Cave, Paul Marinier, Vincent Roy, Rocco DiGirolamo