公开(公告)号：US11553312B2

公开(公告)日：2023-01-10

申请号：US17026719

申请日：2020-09-21

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Anantharaman Balasubramanian ,  Ravikumar V. Pragada

IPC: H04W4/06 ,  H04W4/08 ,  H04W72/00 ,  H04W4/40 ,  H04B7/185 ,  H04W72/12

Abstract: Systems, methods, and instrumentalities are disclosed for processing a multi-level transmission sent on a common set of resources using superposition coding, comprising determining a first group radio network temporary identifier (GRNTI), wherein the GRNTI is associated with a broadcast transmission to a plurality of wireless transmit/receive units (WTRUs), determining a second GRNTI, wherein the second GRNTI is associated with a transmission to a subset of the plurality of WTRUs that received the first GRNTI, receiving the multi-level transmission, wherein the multi-level transmission comprises a first level message and a second level message, decoding the first level message from the multi-level transmission using the first GRNTI and preconfigured control information, and decoding the second level message from the multi-level transmission using the second GRNTI.

公开(公告)号：US11218978B2

公开(公告)日：2022-01-04

申请号：US16700425

申请日：2019-12-02

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Philip J. Pietraski ,  Rui Yang ,  Kai Li ,  Carl Wang ,  Tao Deng ,  Samian Kaur ,  Erdem Bala ,  Ravikumar V. Pragada

IPC: H04W52/34 ,  H04L5/00 ,  H04W52/14 ,  H04W52/32 ,  H04W52/30 ,  H04W16/08 ,  H04W52/28 ,  H04W52/40 ,  H04W36/00 ,  H04W52/36 ,  H04W24/08 ,  H04W52/24 ,  H04W72/04

Abstract: A wireless transmit/receive unit (WTRU) receives first timing advances and first power control commands from a first eNodeB and second timing advances and second power control commands from a second eNodeB and transmits, to the first eNodeB, a first physical uplink control channel using a first uplink component carrier. The first physical uplink control channel has a first timing adjusted by the first timing advances but not by the second timing advances and a first power level adjusted by the first power control commands but not by the second power control commands. The WTRU transmits a second physical uplink control channel using a second uplink component carrier. The second physical uplink control channel has a second timing adjusted by the second timing advances but not by the first timing advances and a second power level adjusted by the second power control commands but not by the first power control commands.

公开(公告)号：US11191037B2

公开(公告)日：2021-11-30

申请号：US16494394

申请日：2018-03-16

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Anantharaman Balasubramanian ,  Ravikumar V. Pragada

IPC: H04W52/24 ,  B64C39/02 ,  H04W52/14 ,  H04W52/32

Abstract: Systems, methods, and instrumentalities are disclosed for power control for aerial wireless transmit receive units (WTRUs). Power control may be open loop and may be managed based on altitude. Open loop power control may be based partly on path loss estimation from neighboring cells and may be coordinated among interfering neighboring eNBs using path loss information. Dynamic power control may be driven by the WTRU. Reference signal transmissions by an eNB may use uplink resources for path loss estimation, and interference estimation may be based on uplink reference signals. Path loss estimation may be based on downlink reference signals. Dynamic blanking may be provided for Cell-specific Reference Signals (CRS), and random access (e.g. RACH) may be provided for aerial WTRUs.

公开(公告)号：US20210297921A1

公开(公告)日：2021-09-23

申请号：US16482887

申请日：2018-02-01

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Ravikumar V. Pragada ,  Anantharaman Balasubramanian ,  Tanbir Haque

IPC: H04W36/32 ,  H04W36/00 ,  H04W72/04

Abstract: Systems, methods, and instrumentalities are disclosed for a wireless transmit/receive unit (WTRU) configured to receive a configuration defining a dedicated radio resource assignment for a travel path, wherein the dedicated radio resource assignment comprises dedicated resources assigned to the WTRU in a plurality of cells and specifies a time interval when the resources will be dedicated to the WTRU in each of the plurality of cells; determine a first time has been reached and utilize dedicated resources in a first cell based on reaching the first time; and determine a second time has been reached and utilize dedicated resources in a second cell based on reaching the second time.

公开(公告)号：US20200250993A1

公开(公告)日：2020-08-06

申请号：US16756723

申请日：2018-10-16

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Jun Li ,  Nagi Mahalingam ,  Anantharaman Balasubramanian ,  Ravikumar V. Pragada ,  Michel Roy

IPC: G08G5/00 ,  B64C39/02 ,  H01Q1/28

Abstract: An unmanned aerial system (UAS) may execute a mission planned by a UAS traffic management (UTM) system. The UAS may receive a mission planning response message from the UTM that includes a mission route for the UAS to navigate and a configuration of one or more trigger events. The mission route may be made up of a sequence of waypoints in an airspace. Each of the waypoints may be configured with a dynamic path conforming profile (PCP) a dynamic required navigation performance (RNP) value. The UAS may monitor at least the RNP value in one or more time intervals to determine if a trigger event occurs. The UAS may transmit a path conformance status report to the UTM upon determining that a trigger event of the one or more trigger events occurred. The path conformance status report may indicate conformance to one or more parameters specified in the PCP.

公开(公告)号：US10524199B2

公开(公告)日：2019-12-31

申请号：US15700799

申请日：2017-09-11

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Ravikumar V. Pragada ,  Saad Ahmad ,  Balaji Raghothaman ,  Samian J. Kaur ,  Pascal M. Adjakple ,  Ulises Olvera-Hernandez ,  Zhuorong Deng ,  Kiran K. Vanganuru ,  Gregory S. Sternberg ,  Guanzhou Wang ,  Michael F. Starsinic ,  Alexander Reznik ,  Juan Carlos Zuniga ,  Eldad M. Zeira

IPC: H04W48/18 ,  H04W76/14 ,  H04W8/00 ,  H04W84/04 ,  H04L29/06 ,  H04W12/06 ,  H04L12/14 ,  H04M15/00 ,  H04W4/24 ,  H04L29/08 ,  H04W8/20 ,  H04W8/24 ,  H04W60/04

Abstract: A method and apparatus are described for supporting a two-stage device-to-device (D2D) discovery using a D2D interworking function (IWF). A D2D IWF component may be configured to perform mapping between an application running on an application server and a third generation partnership project (3GPP) network, and provide a set of application programming interfaces (APIs) to allow discovery to be provided as a service to D2D applications. An application identifier may be mapped to a 3GPP identifier. Further, a method and apparatus are described for performing client-server discovery. A first wireless transmit/receive unit (WTRU) may be configured for a listen-only operation, and a second WTRU may be configured to transmit beacons. The first and second WTRUs may perform a radio access network (RAN) discovery procedure at an access stratum (AS) layer. A method and apparatus for performing charging for D2D service using a D2D IWF are also described.

公开(公告)号：US10470198B2

公开(公告)日：2019-11-05

申请号：US15126206

申请日：2015-03-13

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Onur Sahin ,  Arnab Roy ,  Monisha Ghosh ,  Yugeswar Deenoo ,  Ravikumar V. Pragada ,  Joseph S. Levy

IPC: H04W72/12 ,  H04W74/04 ,  H04W48/16 ,  H04W72/04 ,  H04W84/10 ,  H04W84/18

Abstract: Methods and apparatus may perform dual-band or multi-band mesh operations. A dual-band mesh station (MSTA) capable of operating in an O-band and a D-band may seek to join a mesh network, and may receive O-band beacons from at least one MSTA in the mesh network, where the O-band beacons may include D-band mesh information. The joining MSTA may transmit D-band beacons in a time-period specified by the O-band beacon, and on a condition that a beacon response message is received, may further transmit D-band association information via O-band management frames to join mesh network on the D-band. The joining MSTA may perform contention-free scheduled access in the D-band while sharing D-band transmission information in the O-band to enable concurrent communication in the D-band by neighboring multi-band MSTAs.

公开(公告)号：US10321347B2

公开(公告)日：2019-06-11

申请号：US15694224

申请日：2017-09-01

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Ravikumar V. Pragada ,  Samian Kaur ,  Douglas R. Castor ,  Philip J. Pietraski ,  Arnab Roy

IPC: H04W24/10 ,  H04W24/08 ,  H04W72/04 ,  H04W16/14 ,  H04W92/02 ,  H04W36/00 ,  H04W84/12 ,  H04W36/14 ,  H04L5/00 ,  H04W88/06 ,  H04W48/12 ,  H04W48/16

Abstract: Methods and apparatus are described. A long term evolution (LTE) base station includes a processor and a transceiver, which transmit first LTE data to a wireless transmit/receive unit (WTRU) using LTE frequencies. The LTE data is at a time defined by LTE transmission time interval (TTI) boundaries. The processor maps an LTE class of second LTE data to an access class associated with IEEE 802.11e access and transmits the second LTE data to the WTRU using an IEEE 802.11 associated frequency. A transmission time of the second LTE data is based on an LTE TTI boundary after sensing that an IEEE 802.11 associated frequency is not busy.

公开(公告)号：US20190090162A1

公开(公告)日：2019-03-21

申请号：US16192497

申请日：2018-11-15

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Arnab Roy ,  Yugeswar Deenoo ,  Ravikumar V. Pragada

IPC: H04W36/00 ,  H04W36/14 ,  H04W84/04 ,  H04W84/20 ,  H04W48/16

CPC classification number: H04W36/0005 ,  H04W36/14 ,  H04W48/16 ,  H04W84/045 ,  H04W84/20

Abstract: A station (STA) may include an antenna and a processor operatively coupled to the antenna. The antenna and the processor may be configured to receive a request message from an access point (AP). The request message may include identity information of one or more other STAs and an indication to perform measurements of the one or more other STAs. The antenna and the processor may be further configured to perform the measurements of the one or more STAs to determine a link metric associated with each STA of the one or more other STAs. The antenna and the processor may be further configured to send a reply message to the AP after the link metric associated with each STA of the one or more STAs is determined. The reply message may include results of the determination.

公开(公告)号：US20180206286A1

公开(公告)日：2018-07-19

申请号：US15923710

申请日：2018-03-16

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Ravikumar V. Pragada ,  Saad Ahmad ,  Balaji Raghothaman ,  Ulises Olvera-Hernandez ,  Zhuorong Deng ,  Pascal M. Adjakple ,  Gregory S. Sternberg ,  Guanzhou Wang ,  Alexander Reznik

IPC: H04W76/25 ,  H04W76/14 ,  H04W76/22 ,  H04W76/28 ,  H04W68/00 ,  H04W76/23

CPC classification number: H04W76/25 ,  H04W68/00 ,  H04W76/14 ,  H04W76/22 ,  H04W76/23 ,  H04W76/28

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.