公开(公告)号：US20210084482A1

公开(公告)日：2021-03-18

申请号：US17108942

申请日：2020-12-01

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Gwenael Poitau ,  Ghyslain Pelletier ,  Marian Rudolf ,  Benoit Pelletier ,  Paul Marinier ,  Diana Pani

IPC: H04W8/00 ,  H04W76/14 ,  H04W72/04

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.

公开(公告)号：US20200305167A1

公开(公告)日：2020-09-24

申请号：US16088675

申请日：2017-03-23

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Martino M. Freda ,  Benoit Pelletier

IPC: H04W72/04 ,  H04W72/10 ,  H04L1/16 ,  H04W4/40 ,  H04W80/02 ,  H04W72/14 ,  H04W76/11

Abstract: A method for operation in a WTRU may comprise transmitting, from the WTRU to an eNB, a request for SPS resources including a periodicity of the requested SPS resources and a time offset indicative of a time in which the WTRU expects have an SPS resource allocated. The method may further comprise receiving, by the WTRU from the eNB, in response to the transmitted request for SPS resources, an SPS configuration. The time offset of the transmitted request may include a subframe number (SFN) offset with respect to SFN 0 of the WTRU. The received SPS configuration may correspond to a PC5 interface and the SPS configuration may be received over a physical downlink control channel (PDCCH).

公开(公告)号：US10743297B2

公开(公告)日：2020-08-11

申请号：US15225246

申请日：2016-08-01

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Shahrokh Nayeb Nazar ,  Moon-il Lee ,  Benoit Pelletier

IPC: H04W72/04 ,  H04L1/16 ,  H04L1/18 ,  H04L5/00

Abstract: A method and apparatus are described for allocating resources for an enhanced physical hybrid automatic repeat request (HARQ) channel (E-PHICH). A subset of an enhanced physical downlink control channel (E-PDCCH) may be allocated for use by the E-PHICH. The E-PDCCH may be defined by at least one of enhanced resource element groups (eREGs) and enhanced control channel elements (eCCEs). Each eCCE may be formed by grouping a plurality of eREGs. Each eREG may contain at least one resource element (RE). Alternatively, a subset of eREGs may be allocated as E-PHICH resources. E-PDCCH physical resource block (PRB) pairs may be selected as a resource for the E-PHICH. An indication of the number of the eCCEs may be broadcast to a wireless transmit/receive unit (WTRU).

公开(公告)号：US20190341977A1

公开(公告)日：2019-11-07

申请号：US16513184

申请日：2019-07-16

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Shahrokh Nayeb Nazar ,  Lakshmi R. Iyer ,  Robert L. Olesen ,  Benoit Pelletier ,  Manasa Raghavan ,  Moon-il Lee

IPC: H04B7/0452 ,  H04W72/04

Abstract: An eNode-B for a multi-user multiple-input multiple-output (MU-MIMO) downlink transmission to at least first and second wireless transmit/receive units (WTRUs) via resource elements (REs) of first and second spatial layers, the eNode-B comprising a transmitter and a processor, the processor coupled to the transmitter. The processor configured to generate the MU-MIMO downlink transmission including: allocating a first set of the REs, as first resources, to the first spatial layer for the first WTRU, and a second set of the REs, as second resources, to the second spatial layer for the second WTRU, mapping a first WTRU-specific reference signal (RS) associated with the first WTRU on a subset of the first resources, and a second WTRU-specific RS associated with the second WTRU on a subset of the second resources, muting allocated REs of the first resources overlapping with the subset of the second resources used for the second WTRU-specific RS, and allocated REs of the second resources overlapping with the subset of the first resources used for the first WTRU-specific RS. The transmitter configured to send the MU-MIMO downlink transmission.

公开(公告)号：US20190239193A1

公开(公告)日：2019-08-01

申请号：US16382754

申请日：2019-04-12

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Marian Rudolf ,  Benoit Pelletier ,  Diana Pani ,  Paul Marinier ,  Samian Kaur ,  Martino M. Freda

IPC: H04W72/04 ,  H04W4/70 ,  H04W88/02 ,  H04L12/18 ,  H04W92/18 ,  H04L29/08 ,  H04W72/12

Abstract: Systems, methods, and instrumentalities are disclosed to determine access control and channel and signaling priority. A wireless transmit/receive unit (WTRU) may comprise a processor configured, at least in part, to determine device-to-device (D2D) data to be transmitted. The WTRU may determine if the D2D data may be transmitted. The WTRU may determine available scheduling assignment (SA) resources used for priority based D2D data signals. The WTRU may select one or more available SA resources used for priority based D2D data signals. The WTRU may transmit the D2D data, wherein the D2D data may be transmitted on the selected SA resources.

公开(公告)号：US10341992B2

公开(公告)日：2019-07-02

申请号：US15972960

申请日：2018-05-07

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Benoit Pelletier ,  Lujing Cai ,  Hong O. Zhang ,  Fengjun Xi ,  Joseph S. Levy

IPC: H04W52/48 ,  H04W72/04 ,  H04B7/0404 ,  H04L27/26 ,  H04L25/03 ,  H04L5/00 ,  H04W52/42 ,  H04B7/06 ,  H04W52/32 ,  H04J13/16 ,  H04W52/40 ,  H04W52/38 ,  H04W52/36 ,  H04W52/28 ,  H04W52/16

Abstract: A method and apparatus for transmitting using beam are disclosed. A wireless transmit/receive unit (WTRU) may transmit a first physical random access channel (PRACH) preamble to a base station using a first beam at a first power level. The WTRU may receive an indication that the first PRACH preamble was received by the base station. If the indication was received, the WTRU may transmit data. If the indication was not received, the WTRU may select the first beam or a second beam to use for a second PRACH preamble. Further, the first and second beams may be different beams. If the first beam is selected, the WTRU may increase a transmission power level of the second PRACH preamble by a first power ramp step. If the second beam is selected, the WTRU may not increase the transmission power level of the second PRACH preamble by the first power ramp step.

公开(公告)号：US20190191290A1

公开(公告)日：2019-06-20

申请号：US16282421

申请日：2019-02-22

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Gwenael Poitau ,  Ghyslain Pelletier ,  Marian Rudolf ,  Benoit Pelletier ,  Paul Marinier ,  Diana Pani

IPC: H04W8/00 ,  H04W72/04 ,  H04W76/14

CPC classification number: H04W8/005 ,  H04W72/0413 ,  H04W72/0446 ,  H04W76/14

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.

公开(公告)号：US10219291B2

公开(公告)日：2019-02-26

申请号：US13907368

申请日：2013-05-31

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Ghyslain Pelletier ,  Diana Pani ,  Benoit Pelletier ,  Christopher R. Cave ,  Paul Marinier ,  Tao Deng ,  Gwenael Poitau ,  Kiran K. Vanganuru

IPC: H04W72/12 ,  H04W76/14 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W88/12 ,  H04W92/18

Abstract: A method and apparatus for enabling scheduling and control of direct link communication in a cellular communication system may be disclosed. A method for use in a first wireless transmit/receive unit (WTRU) may include transmitting a request for device-to-device (D2D) communication resources to an enhanced Node B (eNB). The first WTRU may receive an allocation of resources for multiple transmission time intervals (TTI) to be used for D2D communications from the eNB. The first WTRU may schedule D2D communications with a second WTRU to be performed during the allocated resources. The first WTRU may perform D2D communications with the second WTRU using half duplex communications during the allocated resources.

公开(公告)号：US20190059094A1

公开(公告)日：2019-02-21

申请号：US16167682

申请日：2018-10-23

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Samian Kaur ,  Diana Pani ,  Yuxin Zhao ,  Benoit Pelletier

IPC: H04W72/12 ,  H04W72/02 ,  H04W56/00 ,  H04W76/19 ,  H04W76/14 ,  H04W76/18 ,  H04W52/38

Abstract: A wireless transmit receive unit (WTRU) may be operated in a first scheduling mode for device-to-device communication. In the first scheduling mode, a network entity may schedule resources to be used by the WTRU for device-to-device communications. The WTRU may detect that a radio link failure (RLF) timer is running or has been started. The WTRU may switch from the first scheduling mode for device-to-device communication to a second scheduling mode for device-to-device communication in response to detecting that the radio link failure timer is running or has been started. In the second scheduling mode, the WTRU may select a resource from a resource pool for the WTRU to use for one or more device-to-device communications.

公开(公告)号：US10159061B2

公开(公告)日：2018-12-18

申请号：US15618997

申请日：2017-06-09

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Yuxin Zhao ,  Diana Pani ,  Ghyslain Pelletier ,  Paul Marinier ,  Benoit Pelletier ,  Samian Kaur

IPC: H04W72/04 ,  H04W8/00 ,  H04W72/08 ,  H04W88/04 ,  H04W72/02 ,  H04W76/14

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.