Patents Assigned to InterDigital Patent Holdings, Inc.
  • Publication number: 20210112557
    Abstract: Systems and/or methods for supporting communications at a reduced bandwidth with a full bandwidth network such as a long-term evolution (LTE) network may be disclosed. For example, inband assignments such as downlink assignments and/or uplink grants may be provided and/or received and transmissions may be monitored and/or decoded based on the inband assignment. Additionally, information (e.g. a definition or configuration) associated with an ePDCCH may be provided and/or received and ePDCCH resources may be monitored and/or decoded based on such information. An indication for support of a reduced bandwidth by the full bandwidth network may also be provided and/or received and control channels in the reduced or narrow bandwidth may be monitored and/or decoded based on the indication. A PRACH preamble and/or a multi-type subframe definition may also be provided and/or used for support of such a reduced bandwidth.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Moon-il Lee, Marian Rudolf, Peter S. Wang, Shahrokh Nayeb Nazar, Janet A. Stern-Berkowitz, Pouriya Sadeghi, Allan Tsai, Sung-Hyuk Shin
  • Patent number: 10979183
    Abstract: A wireless transmit/receive unit (WTRU) communicating in a wireless local area network (WLAN) system may use efficient acknowledgement (ACK) setup and transmission procedures in conjunction with other transmission and power saving techniques, such as target wake time/restricted access window (TWT/RAW), power save multi-poll (PSMP) and/or transmission opportunity (TXOP) mechanisms. In an example, a WTRU may transmit a frame including an indication that a TWT/RAW (or TXOP) period is scheduled, an indication that multi-WTRU acknowledgement (ACK)/block ACK (BA) will be used for acknowledgement, and/or targeted transmission time(s) for the transmission of multi-WTRU ACK/BA frame(s). The WTRU may trigger the start of the TWT/RAW period, and may receive at least one data frame from another WTRU(s). The WTRU may transmit multi-WTRU ACK/BA frame(s) during the targeted transmission time(s) to acknowledge the at least one data frame received from the other WTRU(s).
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: April 13, 2021
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Xiaofei Wang, Guodong Zhang, Joseph S. Levy
  • Patent number: 10979116
    Abstract: Multiple channel transmission in mmW Wireless Local Area Network (WLAN) systems may be provided. Multi-channel aggregation and channel bonding may include, for example, multi-channel aggregation for a single transmitter/receiver pair or multi-channel aggregation and bonding for multiple transmitter/receiver pairs with frequency and space based multiple access. Multi-channel beamforming may include, for example, one analog beam across two channels and analog circuits on each channel or a single analog circuit on both channels, one analog beam across two channels and separate digital precoding schemes on each channel, one analog beam across a primary channel and separate digital precoding schemes on each channel or two analog beams on two channels and separate digital precoding on each channel. Preamble signaling may be provided.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 13, 2021
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Oghenekome Oteri, Hanqing Lou, Rui Yang, Li-Hsiang Sun
  • Patent number: 10973019
    Abstract: Methods and systems are disclosed for providing physical layer resources to a plurality of medium access control (MAC) instances that are associated with different serving sites that are independently scheduled. For example, a WTRU may utilize a first physical layer configuration for transmitting to a first serving site associated with a first MAC instance. The WTRU may utilize a second physical layer configuration for transmitting to a second serving site associated with a second MAC instance. The WTRU may prevent conflicts between transmission requests from the first MAC instance and transmission requests from the second MAC instance. For example, preventing the conflicts may include utilizing one or more of time segregation or frequency segregation for transmissions associated with the first MAC instance and transmissions associated with the second MAC instance.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: April 6, 2021
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Paul Marinier, J. Patrick Tooher, Ghyslain Pelletier, Diana Pani
  • Patent number: 10973051
    Abstract: Methods and apparatus for protection of multi-user (MU) transmission are described herein. An apparatus includes a receiver, a transmitter and a processor. The receiver and the processor detect a trigger frame for an uplink (UL) multi-user (MU) transmission. The processor and the transmitter generate and send a frame in response to the trigger frame and transmit channel availability information for a plurality of channels in response to the trigger frame. The receiver and the processor detect data in a resource unit (RU) of a downlink (DL) MU physical layer (PHY) protocol data unit (PPDU) on one of the plurality of channels. The one of the plurality of channels is based on the transmitted channel availability information.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: April 6, 2021
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Hanqing Lou, Oghenekome Oteri, Li-Hsiang Sun, Xiaofei Wang, Rui Yang
  • Publication number: 20210099960
    Abstract: A method and apparatus for power control for wireless transmissions are disclosed. A wireless transmit/receive unit (WTRU) may reduce transmission power to channels for carrier aggregation such that a total transmit power of the WTRU is smaller than or equal to a maximum transmission power level in all symbols of a transmission. Further, transmission power may be allocated to the channels for carrier aggregation based on priority. Also, transmission power may be allocated to a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) with uplink control information over a PUSCH without uplink control information. Moreover, transmission power may be allocated to a PUCCH or a PUSCH over a sounding reference signal (SRS) transmission. Additionally, the WTRU may transmit data over one or more channels, of the channels for carrier aggregation, at the respective transmission power allocated to the one or more channels.
    Type: Application
    Filed: December 14, 2020
    Publication date: April 1, 2021
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: John W. Haim, Janet A. Stern-Berkowitz, Stephen E. Terry, Virgil Comsa
  • Patent number: 10966152
    Abstract: A method, a wireless transmit/receive unit (WTRU) and a base station for transferring small packets are described. The WTRU generates a packet that has one or more of a medium access control (MAC) or a physical layer convergence protocol (PLCP) header, the one or more of the MAC or the PLCP header including a field. On a condition that the WTRU has data buffered for transmission, the WTRU includes in the field information that indicates a time or a transmission opportunity (TXOP) needed to transmit at least one packet of data that the WTRU has buffered for transmission. The WTRU transmits the packet to another WTRU in the wireless network. The WTRU receives another packet from the other WTRU with a granted TXO) based on the time needed to transmit the at least one packet of the data that the WTRU has buffered for transmission.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: March 30, 2021
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Xiaofei Wang, Guodong Zhang
  • Patent number: 10958409
    Abstract: A method performed by a HD-WTRU may comprise determining that an uplink SR and/or a PRACH preamble overlaps in time with one or more subframes of a scheduled downlink shared channel transmission. When the overlap occurs, the HD-WTRU may receive the downlink shared channel transmission on the one or more subframes. The HD-WTRU may process the downlink shared channel transmission, not transmit the SR and not transmit the PRACH preamble.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: March 23, 2021
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Moon-il Lee, Janet A. Stern-Berkowitz, Virgil Comsa
  • Patent number: 10959155
    Abstract: Methods and apparatus for performing device-to-device (D2D) discovery are described. A service discovery process may include a discoverable device (e.g., a wireless transmit/receive unit (WTRU)) sending a discovery request, over a wireless connection, for a radio resource for the purpose of performing a transmission for radio frequency (RF) proximity detection for a given service. The WTRU may receive a discovery response including a configuration for RF proximity detection from a network, which configuration may be associated to the service. The configuration for RF proximity may be received by dedicated signaling, (e.g., physical downlink shared channel (PDSCH)), in particular for a discoverable WTRU. The configuration for RF proximity may be received on a broadcast channel, (e.g.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: March 23, 2021
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Gwenael Poitau, Ghyslain Pelletier, Paul Marinier, Diana Pani, Samian Kaur, Benoit Pelletier
  • Publication number: 20210084635
    Abstract: A method, apparatus, and system for beamforming training using a wireless transmit receive unit (WTRU). A WTRU may receive an indication of a number of space time slots (STSs) from an access point (AP) within a beacon frame during a beamforming training allocation. The WTRU may send a response signal to the AP in a specific STS based on a function of the number of STSs. The WTRU may receive an acknowledgement (ACK) from the AP confirming the response was received. Alternatively, the AP may send a signal indicating that a collision occurred and alter the number of STSs, and the WTRU may try again in the next beamforming training allocation.
    Type: Application
    Filed: March 12, 2018
    Publication date: March 18, 2021
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Oghenekome Oteri, Hanqing Lou, Xiaofei Wang, Li-Hsiang Sun, Rui Yang
  • Publication number: 20210084482
    Abstract: Physical layer processing and procedures for device-to-device (D2D) discovery signal generation and transmission and scheduling of D2D discovery signals are described. Detection and measurement of a D2D discovery signal, D2D signal identity management, and monitoring by a wireless transmit/receive unit (WTRU) of PDCCH for D2D discovery scheduling is described, as is a WTRU that may be configured with a D2D-specific transmission/reception opportunity pattern. The discovery signal may carry a payload for explicit information about user and/or service identity, and may be mapped to physical resources in such a way as to decouple transmission/reception of the discovery signal from downlink operations. A WTRU may measure a D2D discovery signal quality and report to the network.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 18, 2021
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Gwenael Poitau, Ghyslain Pelletier, Marian Rudolf, Benoit Pelletier, Paul Marinier, Diana Pani
  • Patent number: 10945302
    Abstract: Circuit switched fallback (CSFB) requests may be managed. A mobile management entity (MME) can detect one or more pending CSFB requests. In response to detecting the pending CSFB request(s), the MME can generate a message that indicates the one or more pending CSFB requests, and can communicate the message to one of a mobile switching center (MSC) and a virtual location register (VLR).
    Type: Grant
    Filed: March 26, 2011
    Date of Patent: March 9, 2021
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: J. Patrick Tooher, Mahmoud Watfa, Behrouz Aghili, Ulises Olvera-Hernandez, Pascal Adjakple
  • Publication number: 20210065566
    Abstract: An unmanned aerial vehicle (UAV) may detect a risk of collision with one or more objects in an airspace serviced by a mobile edge computing (MEC) node. The MEC node may provide an edge detect and avoid (edge-DAA) function for use in the airspace. The UAV may determine a first resolution advisory (RA) to be acted on in order to avoid the collision with the one or more objects based on a local DAA function within the UAV. The UAV may receive, from the MEC node, a second RA to be acted on in order to avoid the collision with the one or more objects based on the edge-DAA function. If the second RA can be acted onto avoid the collision with the one or more objects, the UAV may act on the second RA and may send a message to the MEC node with an acknowledgement.
    Type: Application
    Filed: January 29, 2019
    Publication date: March 4, 2021
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Jun Li, James Cistone, Ravikumar V. Pragada, Nagi Mahalingam, Michel Roy
  • Patent number: 10939483
    Abstract: A method of communicating using proximity services (ProSe) is disclosed. A base station receives at least one aggregate maximum bit rate (AMBR) parameter from a network entity. The at least one AMBR parameter comprises a maximum bit rate that a first wireless transmit/receive unit (WTRU) can use for data sent on one or more ProSe bearers. The base station receives a request from the first WTRU to establish the one or more ProSe bearers with a second WTRU. The request comprises priority information of the one or more ProSe bearers determined by the first WTRU. The base station sends an indication to the first WTRU to establish a ProSe communication over the one or more ProSe bearers based on at least the AMBR parameter and the priority information of the one or more ProSe bearers.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: March 2, 2021
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Mahmoud Watfa, Guanzhou Wang, Saad Ahmad, Amir Helmy, Loic Canonne-Velasquez, Dimitrios Karampatsis, Samian Kaur, Ulises Olvera-Hernandez
  • Publication number: 20210058101
    Abstract: A wireless transmit/receive unit (WTRU) may receive a constellation symbol that includes indications that each are associated with a respective WTRU of a plurality of WTRUs. The WTRU may determine that a first weight associated with a first indication of the indications is different than a second weight associated with a second indication of the indications. The indications may comprise indications of bits modulated at a multi-user constellation bit division multiple access modulator (MU-CBDMAM).
    Type: Application
    Filed: November 10, 2020
    Publication date: February 25, 2021
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Fengjun Xi, Yuan Sheng Jin, Pengfei Xia, Oghenekome Oteri, Hanqing Lou, Nirav B. Shah, Robert L. Olesen
  • Patent number: 10932231
    Abstract: A wireless transmit receive unit (WTRU) may perform provide a report to a network. The WTRU may include a processor that is configured to receive a measurement configuration from the network, where the measurement configuration indicates a threshold and a resource pool on which to perform measurements. The resources pool may be used for communication between one or more mobile device. The processor may be configured to perform measurements on the resource pool and determine whether an energy level for the resource pool is above the threshold for a duration of time. The processor may also be configured to send a report to the network indicating that the energy level for the resource pool is above the threshold for the predetermined duration of time.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 23, 2021
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Yuxin Zhao, Diana Pani, Ghyslain Pelletier, Paul Marinier, Benoit Pelletier, Samian Kaur
  • Patent number: 10932229
    Abstract: A method and apparatus may be configured to support coordinated orthogonal block-based resource allocation (COBRA) operations. An access point (AP) may be configured to indicate to a plurality of stations (STA)s that it may support COBRA. Each WTRU may be configured to indicate to the AP that it can support COBRA as well. The AP may be configured to transmit a COBRA controller information element (IE) comprising a plurality of fields to each of the WTRUs. Each WTRU may be configured to transmit a COBRA controllee IE comprising a plurality of fields. STA grouping management, group maintenance, channel access, beamforming, sounding and frequency and synchronization procedures are also described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 23, 2021
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Hanqing Lou, Ronald G. Murias, Xiaofei Wang, Nirav B. Shah, Monisha Ghosh, Guodong Zhang, Frank La Sita, Robert L. Olesen
  • Patent number: 10932184
    Abstract: Mechanisms may be used for multi-channel (MC) setup and access and waveform designs for millimeter wave (mmW) systems. An access point (AP) that is part of a basic service set (BSS) may provide multi-channel (MC) access to one or more stations (STAs) in the BSS. The AP may monitor for beacon frames transmitted by other access point/personal basic service set (PBSS) control point (AP/PCP) associated with overlapping basic service sets (OBSSs). The monitored beacon frames may include service period (SP) scheduling information for the OBSS. The AP may generate an allocations at least one SPs and/or contention based access periods (CBAPs) channels to be used in a beacon interval in consideration of the SP scheduling information for the OBSS. The AP may transmit a beacon frame STA(s) indicating the SP/CBAP allocations. Other mechanisms may include simultaneous transmission of multiple single carrier (SC) waveforms with non-overlapping waveforms to multiple STAs.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: February 23, 2021
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Hanqing Lou, Alphan Sahin, Oghenekome Oteri, Rui Yang
  • Patent number: 10925067
    Abstract: Techniques for congestion management in a communication network are contemplated. For example, a wireless transmit receive unit (WTRU) may include a Radio Resource Control (RRC) layer and a Non-Access Stratum (NAS) layer. The RRC layer may receive an indication for a service, for example from the NAS. The indication may be interpreted as a request for the particular service indicated. For example, the indicated service may correspond to at least one of: a mobile originated (MO) voice communication, a circuit switched fallback (CSFB) supplementary service (SS), or a MO short message service (SMS). The RRC layer may receive a signal from a network indicating that one or more services provided by the network are allowed. The RRC layer may send a connection request to the network for the service sought by the NAS if that service is one of the one or more services allowed.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: February 16, 2021
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Mahmoud Watfa, Pascal M. Adjakple, Saad Ahmad
  • Patent number: 10925088
    Abstract: Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, an access point (AP) may receive, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit. On a condition that the individual/group bit of the BSSID field has a value of one (1), the AP may determine that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU. The AP may then transmit a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: February 16, 2021
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Bhaskar M. Anepu, Sudheer A. Grandhi, Xiaofei Wang