Patents Assigned to InterDigital Patent Holdings, Inc.
  • Publication number: 20200169999
    Abstract: A method and an apparatus for wireless transmission using multiple uplink carriers are disclosed. A wireless transmit/receive unit (WTRU) may transmit via a primary uplink carrier data, pilot and control channels for uplink transmissions on both uplink carriers, and transmit a data channel and a pilot channel via a secondary uplink carrier. Alternatively, the WTRU may transmit via a primary uplink carrier data, pilot, and control channels for uplink transmission on the primary uplink carrier, and transmit via a secondary uplink carrier data, pilot, and control channels for uplink transmissions on the secondary uplink carrier. Each uplink carrier may be associated with at least one specific downlink carrier such that the WTRU applies control information received on a downlink carrier to uplink transmissions on an uplink carrier associated with the downlink carrier on which the WTRU receives the control information.
    Type: Application
    Filed: October 29, 2019
    Publication date: May 28, 2020
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Paul Marinier, Diana Pani, Christopher R. Cave, Benoit Pelletier
  • Patent number: 10667169
    Abstract: A method for receiving a backoff value at a wireless station is presented. A traffic indication map is received at the station, wherein a backoff number is implicitly assigned to the station based on a position of the station within the traffic indication map. The backoff value is determined by multiplying the backoff number by a predetermined time value.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: May 26, 2020
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Xiaofei Wang, Lei Wang, Sudheer A. Grandhi, Guodong Zhang
  • Patent number: 10667190
    Abstract: Methods, apparatus and systems using Enhanced Dedicated Core Network (DCN) selection are disclosed. One representative method includes receiving, by the core network entity from another core network entity, information indicating that a DCN type is new or has change for a wireless transmit/receive unit (WTRU); and sending a message, by the core network entity to the WTRU, including a new or a changed DCN type.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: May 26, 2020
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Mahmoud Watfa, Behrouz Aghili
  • Publication number: 20200162302
    Abstract: A wireless transmit/receive unit (WTRU) or access point (AP) may generate a protocol data unit (PDU) of a first 802.11 protocol and a preamble and data of a second 802.11 protocol. The preamble and data of the second 802.11 protocol may be arranged on resources of the PDU of the first 802.11 protocol with shaping sequences for concurrent transmission.
    Type: Application
    Filed: May 4, 2018
    Publication date: May 21, 2020
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Alphan Sahin, Oghenekome Oteri, Hanqing Lou, Xiaofei Wang, Li Hsiang Sun, Rui Yang, Frank La Sita
  • Publication number: 20200162135
    Abstract: A single input single output (SISO) data transmission may solicit a multiple input multiple output (MIMO) rank adaptation information. A number of transmit chain for transmission may be determined, e.g., by an access point (AP). A physical layer convergence procedure (PLCP) protocol data unit (PPDU) may be transmitted, e.g., to a station (STA). The PPDU may include data and training (TRN) sequences. The number of TRN sequences may be equal to the number of transmit chains. The PPDU may include information associated with the determined number of transmit chains for transmission. Feedback may be received, e.g., from the STA. The feedback may include information that identifies a transmit chain associated with the transmitted TRN sequences and/or a channel measurement associated with the identified transmit chain. A subsequent PPDU may be transmitted based on the channel measurement associated with the identified transmit chain from the received feedback.
    Type: Application
    Filed: May 3, 2018
    Publication date: May 21, 2020
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Li Hsiang Sun, Hanqing Lou, Alphan Sahin, Oghenekome Oteri, Rui Yang, Xiaofei Wang, Frank La Sita
  • Publication number: 20200163099
    Abstract: Methods and apparatuses are related to multi-user parallel channel access (MU-PCA). For example, a wireless transmit/receive unit (WTRU) is provided that is one of the plurality of WTRUs operable to simultaneously communicate via a plurality of channels managed by an access point (AP). The WTRU includes a receiver configured to receive, from the AP, over at least one channel of the plurality of channels, a group poll (G-Poll) message that includes a resource allocation that indicates at least one allocated channel of the plurality of channels for the WTRU; and a transmitter configured to transmit an uplink request message, to the AP in response to the G-Poll message, over the at least one allocated channel of the plurality of channels, the uplink request message corresponding to uplink data the WTRU has for transmission to the AP.
    Type: Application
    Filed: January 20, 2020
    Publication date: May 21, 2020
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xiaofei Wang, Hanqing Lou, Monisha Ghosh, Nirav B. Shah, Guodong Zhang, Ronald Murias
  • Publication number: 20200162965
    Abstract: Methods and apparatuses are provided for generating a protocol data unit (PDU). An apparatus may comprise a processor configured to provide a medium access control (MAC) entity and a segmentation entity. The MAC entity may indicate an amount of data associated with the segmentation entity to be multiplexed by the MAC entity. The segmentation entity may segment, based on the indicated amount of data, a service data unit (SDU) into a segment, and the MAC entity may multiplex the segment into a MAC protocol data unit (PDU). The MAC PDU may include a field that indicates whether the segment is included and whether the segment is a last segment. The apparatus may further comprise a transmitter configured to transmit the MAC PDU.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 21, 2020
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Diana Pani, Christopher R. Cave, Paul Marinier, Stephen E. Terry
  • Patent number: 10660140
    Abstract: A method and apparatus for a wireless transmit receive unit (WTRU) to use a contention-based uplink communications channel, applies a rule-based restriction of access to the contention-based uplink channel that attempts to use at least one contention-free uplink channel allocation for uplink transmissions on a condition that at least one contention-free uplink channel allocation has been granted.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: May 19, 2020
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Guodong Zhang, Afshin Haghighat, Erdem Bala, David S. Bass, Paul Marinier, Marian Rudolf, Stephen E. Terry
  • Publication number: 20200153566
    Abstract: A method and apparatus for providing for full-duplex (FD) operation in time division duplex (TDD) communications are disclosed herein. A wireless transmit/receive unit (WTRU) may receive an indication of a first, UL heavy, TDD uplink (UL)/downlink (DL) configuration and an indication of a second, DL heavy, TDD UL/DL configuration. The WTRU may also receive a grant in a common DL subframe. The WTRU may apply the hybrid automatic repeat request (HARQ) process timing associated with one of the TDD UL/DL configurations for DL HARQ feedback. Also, the WTRU may monitor a set of subframes for a UL or a DL grant. Further, the WTRU may receive a grant in a subframe which may include an indication of a reference TDD UL/DL configuration. The WTRU may then apply the HARQ process timing associated with the reference TDD UL/DL configuration for DL HARQ feedback.
    Type: Application
    Filed: January 17, 2020
    Publication date: May 14, 2020
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Pouriya Sadeghi, Janet A. Stern-Berkowitz, Moon-il Lee
  • Patent number: 10652947
    Abstract: A wireless transmit/receive unit (WTRU) may receive from a network resource allocation information for device to device (D2D) communication. The WTRU may select, from the received resource allocation information for a transmission time interval (TTI), resources for a D2D channel. The WTRU may transmit, with use of the selected resources, data directly to another WTRU.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: May 12, 2020
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Ravikumar V. Pragada, Saad Ahmad, Balaji Raghothaman, Ulises Olvera-Hernandez, Zhuorong Deng, Pascal M. Adjakple, Gregory S. Sternberg, Guanzhou Wang, Alexander Reznik
  • Patent number: 10652799
    Abstract: A method and apparatus are disclosed for enabling very high throughput (VHT) communications. A wireless transmit and receive unit (WTRU) may receive, from an access point (AP), a management frame comprising VHT capabilities information. The VHT capabilities information may comprise an indication of support for reception via non-contiguous channels. The WTRU may transmit, on a condition that reception via non-contiguous channels is supported, at least one data packet, to the AP, via multiple non-contiguous channels. The multiple non-contiguous channels may be used simultaneously.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 12, 2020
    Assignee: InterDigital Patent Holdings, Inc.
    Inventor: Sudheer A. Grandhi
  • Publication number: 20200145963
    Abstract: Systems, methods, and instrumentalities are disclosed for active interference management. Active interference management may be provided for designated data regions and/or superzones. UAV-specific or other designated data regions (e.g., with data zones) may enable dynamic inter-cell interference management and high reliability command & control for UAVs in interference prone in environments. Data zone/region specific control channel search space may support inter-cell interference cancellation. Aggregation N levels (e.g., during EPDCCH encoding) may be dependent on an interference level of a zone. Data zone specific reference signals (DS-RS) may enable UAVs connected to neighboring cells to estimate an interference channel per zone. Interference management may be provided during semi-persistent scheduling (SPS) transmissions. Reliability of Physical Downlink Control Channel (PDCCH) may be enhanced (EPDCCH), e.g., with interference assistance signaling.
    Type: Application
    Filed: March 23, 2018
    Publication date: May 7, 2020
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Anantharaman BALASUBRAMANIAN, Ravikumar V. PRAGADA
  • Publication number: 20200145853
    Abstract: Devices, methods, and systems for scheduling of an enhanced sector level sweep (SLS). A wireless transmit/receive unit (WTRU) monitors beacon frames transmitted from one or more access points associated with the WTRU. The WTRU receive the beacon frames over multiple transmission sectors during a time interval. The WTRU then compiles the transmission sectors information in a list and ranks the sectors in the list, based on the sectors' characteristics. Then, the WTRU transmits the list over one sector of the list to the one or more access points.
    Type: Application
    Filed: March 9, 2018
    Publication date: May 7, 2020
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Hanqing Lou, Xiaofei Wang, Li-Hsiang Sun, Oghenekome Oteri, Rui Yang
  • Patent number: 10644760
    Abstract: A method and apparatus may be used in multi-AP and multi-wireless transmit/receive unit joint transmissions. The apparatus may be configured to transmit a joint transmission request on a first medium, and receive a joint transmission response on the first medium. In response, the apparatus my perform a joint transmission negotiation on a second medium and transmit data on the second medium based on the joint transmission negotiation. The apparatus may be configured to perform coordinated sectorized or beamformed transmissions through access point (AP)/PCP negotiations. The apparatus may provide an indication of support for joint transmission and coordinated sectorized or beamformed transmissions. The method and apparatus may also implement multi-AP/WTRU request-to-send (RTS)/clear-to-send (CTS) procedures. The apparatus may be configured to perform coordinated sectorized or beamforming grouping.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: May 5, 2020
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Xiaofei Wang, Guodong Zhang, Oghenekome Oteri, Pengfei Xia
  • Publication number: 20200136758
    Abstract: A method and apparatus are disclosed for identifying different types of reception failures of a packet. A station (STA) may receive a packet from a transmitting STA and determine whether it is properly received by performing at least one check of a plurality of checks. The STA may determine that reception of the packet was not properly received due to a reception failure based on the at least one check and may generate a negative acknowledgement signal (NACK) signal including an indication of the reception failure cause to enable the transmitting STA to remediate the reception failure cause. The least one check includes determining whether a frame check sequence (FCS) passes, whether a CSMA wireless medium remains busy immediately after an expected packet transmission time, whether there is a power spike during reception of the signal, or whether there are Short training field (STF) and Long Training Field (MT) correlations.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xiaofei Wang, Guodong Zhang, Hanqing Lou, Oghenekome Oteri, Monisha Ghosh, Robert L. Olesen
  • Publication number: 20200137669
    Abstract: A method and apparatus are described. A method includes determining whether the apparatus is in a coverage enhancement (CE) mode or a non-CE mode. The method further includes receiving a CE-system information block (CE-SIB) on a physical downlink shared channel (PDSCH) based on at least one of a known location or at least one known parameter for the CE-SIB, on a condition that the WTRU is determined to be in the CE mode.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Moon-il Lee, Janet A. Stern-Berkowitz, Samian Kaur, Diana Pani
  • Patent number: 10638457
    Abstract: ePDCCH may be provided. For example, a WTRU may receive a configuration for monitoring an ePDCCH resource. Based on the configuration, the WTRU may be configured to monitor and may monitor the ePDCCH resource on a particular subframe. Additionally, a WTRU may derive an aggregation level for a subframe associated with an aggregation level number NAL. The WTRU may transmit or monitor an ePDCCH using the aggregation level associated with the NAL for the subframe. A WTRU may also receive a reference signal. The WTRU may then determine the type of reference signal received. The WTRU may perform a demodulation of the PDSCH or ePDCCH using a demodulation timing based on the determined type. The ePDCCH or PDSCH may also be monitored or received by identifying a demodulation reference timing implicitly based on a location of one or more ePDCCH resources where the WTRU may receive DCI.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: April 28, 2020
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Moon-il Lee, Chang-Soo Koo, Sung-Hyuk Shin, Janet A. Stern-Berkowitz, Marian Rudolf, Fengjun Xi, Ananth Kini, Seyed Mohsen Hosseinian, Paul Marinier
  • Publication number: 20200128463
    Abstract: Systems and methods for providing multiple connections or interfaces at the same time may be disclosed herein. For example, in an embodiment, a first RRC connection may be established between a wireless transmit and receive unit (WTRU) or user equipment (UE) and a network node such as an eNB and a second RRC connection may be established between the WTRU or UE and the network node such as the eNB or another network node such as another eNB. The first RRC connection and the second RRC connections may then be maintained in parallel (e.g. at the same time).
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Murali Reddiboyana, John Tomici, Prabhakar R Chitrapu, Alexander Reznik
  • Patent number: 10630437
    Abstract: The disclosure pertains to methods and apparatus for transmitting uplink data to a wireless network asynchronously comprising generating data for transmission to the network on an uplink shared channel (UL-SCH) transport channel, selecting between transmitting the data to the network orthogonally or non-orthogonally, and transmitting the data on the selected physical channel.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: April 21, 2020
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Paul Marinier, Benoit Pelletier, J. Patrick Tooher
  • Patent number: 10630819
    Abstract: A method and apparatus for discarding a packet data convergence protocol (PDCP) service data unit (SDU) are disclosed. A PDCP layer sets a timer and discards a PDCP SDU upon expiration of the timer. The timer may be set upon receiving the PDCP SDU from an upper layer or upon submitting the PDCP SDU to a lower layer for transmission. The timer and a radio link control (RLC) discard timer may be coordinated. Alternatively, the PDCP layer may discard the PDCP SDU based on a notification from an RLC layer or based on a PDCP status report.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: April 21, 2020
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Mohammed Sammour, Stephen E. Terry