公开(公告)号：US20190069326A1

公开(公告)日：2019-02-28

申请号：US16173700

申请日：2018-10-29

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Guodong Zhang ,  Afshin Haghighat ,  Erdem Bala ,  David S. Bass ,  Paul Marinier ,  Marian Rudolf ,  Stephen E. Terry

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/12 ,  H04W76/25

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.

公开(公告)号：US10123343B2

公开(公告)日：2018-11-06

申请号：US15179195

申请日：2016-06-10

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Shahrokh Nayeb Nazar ,  Robert L. Olesen ,  Paul Marinier ,  Ghyslain Pelletier ,  Kyle Jung-Lin Pan ,  Marian Rudolf ,  Muhammad U. Fazili ,  Lakshmi R. Iyer

IPC: H04W72/10 ,  H04W24/08 ,  H04W72/04 ,  H04W24/10 ,  H04W74/08

Abstract: Channel state information is reported in periodic and aperiodic reports for multiple component carriers or serving cells. Channel state information may be reported for a subset of aggregated downlink carriers or serving cells. For an aperiodic report, the carrier(s)/serving cell(s) for which channel state information is reported may be determined based on the request for the aperiodic report. A report collision may occur in a subframe between a periodic CSI report for a first serving cell and a report for a second serving cell. A priority rule may be used to resolve the report collision.

公开(公告)号：US10051654B2

公开(公告)日：2018-08-14

申请号：US14760407

申请日：2014-01-16

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： J. Patrick Tooher ,  Paul Marinier ,  Marian Rudolf

IPC: H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04L27/26

Abstract: Methods and systems are disclosed for reducing control signaling in uplink transmissions. A device, such as a wireless transmit/receive unit, may determine to use a demodulation reference signal (DM-RS) transmission schedule out of a plurality of DM-RS transmission schedules. The DM-RS transmission schedule may be characterized by a DM-RS transmission being mapped to a single orthogonal frequency-division multiplexing (OFDM) symbol per subframe of a data stream. The DM-RS transmission schedule may be characterized by a DM-RS transmission being mapped to a first subset of subcarriers of an OFDM symbol of a subframe of a data stream and Physical Uplink Shared Channel (PUSCH) transmission or Physical Uplink Control Channel (PUCCH) control information being mapped to a second set of subcarriers of the OFDM symbol. The first set of subcarriers may be different than the second set of subcarriers. The data stream may be transmitted according to the DM-RS transmission schedule.

公开(公告)号：US20180103488A1

公开(公告)日：2018-04-12

申请号：US15809668

申请日：2017-11-10

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Paul Marinier ,  Diana Pani ,  Ghyslain Pelletier ,  Marian Rudolf

IPC: H04W74/00 ,  H04W88/06 ,  H04B7/06 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04L1/16 ,  H04L1/00 ,  H04W12/10 ,  H04W24/10 ,  H04W72/12

CPC classification number: H04W74/004 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0031 ,  H04L1/0072 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0057 ,  H04L2001/0092 ,  H04W12/10 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/0453 ,  H04W72/12 ,  H04W74/006 ,  H04W88/06

Abstract: A method and apparatus for sending uplink control information by a multi-mode wireless transmit/receive unit (WTRU) capable of operating on multiple component carriers of a plurality of radio access technologies (RATs) for multi-RAT operation are disclosed. The WTRU may generate uplink control information (UCI) pertaining to a first RAT and a second RAT, wherein the UCI may include a first plurality of hybrid automatic repeat request acknowledgements (HARQ-ACKs) pertaining to a plurality of downlink (DL) transmissions of the first RAT and a second plurality of HARQ-ACKs pertaining to a plurality of DL transmissions of the second RAT. The WTRU may multiplex at least part of the generated UCI pertaining to the first RAT and at least part of the generated UCI pertaining to the second RAT onto a physical channel on a component carrier of the second RAT.

公开(公告)号：US09887828B2

公开(公告)日：2018-02-06

申请号：US15254332

申请日：2016-09-01

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Ghyslain Pelletier ,  Paul Marinier ,  Marian Rudolf ,  Stephen E. Terry ,  Robert L. Olesen

IPC: H04W4/00 ,  H04L5/00 ,  H04W52/36 ,  H04W24/10 ,  H04W72/04 ,  H04W76/02 ,  H04W52/34 ,  H04W76/06

CPC classification number: H04L5/0098 ,  H04L5/001 ,  H04W24/10 ,  H04W52/34 ,  H04W52/365 ,  H04W72/0406 ,  H04W72/042 ,  H04W76/15 ,  H04W76/19 ,  H04W76/38

Abstract: Methods and apparatus for addressing wireless transmit/receive unit (WTRU) behavior in response to configuration, configuration parameters and access issues related to the activation/deactivation process when the WTRU may be configured with multiple serving cells or carrier aggregation.

公开(公告)号：US20170331611A1

公开(公告)日：2017-11-16

申请号：US15664753

申请日：2017-07-31

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Janet A. Stern-Berkowitz ,  Pouriya Sadeghi ,  Nobuyuki Tamaki ,  Moon-il Lee ,  Ghyslain Pelletier ,  Li-Hsiang Sun ,  Marian Rudolf

IPC: H04L5/14 ,  H04L1/18 ,  H04W72/12 ,  H04L1/00 ,  H04B7/26 ,  H04L5/00

CPC classification number: H04L5/14 ,  H04B7/2656 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1854 ,  H04L5/0055 ,  H04L2001/0093 ,  H04W72/1289

Abstract: A wireless transmit/receive unit (WTRU) may receive a first Time Division Duplex (TDD) uplink (UL)/downlink (DL) configuration. The WTRU may use the first configuration for timing of UL scheduling and UL Hybrid Automatic Repeat Request (HARQ). Further, on a condition that the WTRU receives a second configuration, the WTRU may use the second configuration for DL HARQ and monitor for a third configuration. However, on a condition that the WTRU does not receives a second configuration, the WTRU may use the first configuration for DL HARQ. In addition, on a condition that the third configuration is received by the WTRU, the WTRU may determine a UL or DL direction for a subframe based on the received third configuration. On a condition that the third configuration is not received by the WTRU, the WTRU may determine a UL or DL direction for the subframe based on the received first configuration.

公开(公告)号：US20170303220A1

公开(公告)日：2017-10-19

申请号：US15514174

申请日：2015-09-24

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Pouriya Sadeghi ,  Janet A. Stern-Berkowitz ,  Moon-il Lee ,  J. Patrick Tooher ,  Marian Rudolf

IPC: H04W56/00 ,  H04W72/04 ,  H04L5/00 ,  H04W76/04

CPC classification number: H04W56/001 ,  H04L5/0048 ,  H04L5/0053 ,  H04W56/00 ,  H04W72/042 ,  H04W72/0453 ,  H04W76/27

Abstract: Systems, methods, and instrumentalities are disclosed for LTE operation in an unlicensed spectrum, LTE-U. A wireless transmit/receive unit, WTRU, may establish a connection with a first cell on a licensed frequency band. The WTRU may receive a first downlink transmission from a second cell operating on an unlicensed frequency band. The WTRU may determine that a synchronization signal transmission from a third cell operating on the unlicensed frequency band is transmitted using one or more reel source elements. The WTRU may perform frequency and/or timing estimation based on the synchronization signal transmission. The WTRU may perform rate matching around the one or more resource elements that correspond to the synchronization signal transmission. The WTRU may perform rate matching around the one or more resource elements by de-mapping symbols of the downlink transmission.

公开(公告)号：US09794913B2

公开(公告)日：2017-10-17

申请号：US13751114

申请日：2013-01-27

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Moon-il Lee ,  Changsoo Koo ,  Sung-Hyuk Shin ,  Janet A. Stern-Berkowitz ,  Marian Rudolf ,  Fengjun Xi ,  Ananth Kini ,  Seyed Mohsen Hosseinian ,  Paul Marinier

IPC: H04J1/16 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04L5/0053

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.

公开(公告)号：US09743433B2

公开(公告)日：2017-08-22

申请号：US15056688

申请日：2016-02-29

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Guodong Zhang ,  Afshin Haghighat ,  Erdem Bala ,  David S. Bass ,  Paul Marinier ,  Marian Rudolf ,  Stephen E. Terry

IPC: H04W72/04 ,  H04W74/08 ,  H04W52/50 ,  H04W74/00 ,  H04W72/12 ,  H04W72/14 ,  H04W76/04 ,  H04W52/10 ,  H04W52/14

CPC classification number: H04W74/0891 ,  H04W52/10 ,  H04W52/146 ,  H04W52/50 ,  H04W72/042 ,  H04W72/1268 ,  H04W72/14 ,  H04W74/002 ,  H04W74/0833 ,  H04W76/25

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.

公开(公告)号：US20170156152A1

公开(公告)日：2017-06-01

申请号：US15179195

申请日：2016-06-10

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Shahrokh Nayeb Nazar ,  Robert L. Olesen ,  Paul Marinier ,  Ghyslain Pelletier ,  Kyle Jung-Lin Pan ,  Marian Rudolf ,  Muhammad U. Fazili ,  Lakshmi R. Iyer

IPC: H04W72/10 ,  H04W28/04 ,  H04W24/10 ,  H04W24/08 ,  H04W72/04

CPC classification number: H04W72/10 ,  H04L1/0023 ,  H04L1/0027 ,  H04L1/0028 ,  H04L1/1671 ,  H04L5/001 ,  H04L5/0053 ,  H04W24/08 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/0446 ,  H04W74/0841

Abstract: Channel state information is reported in periodic and aperiodic reports for multiple component carriers or serving cells. Channel state information may be reported for a subset of aggregated downlink carriers or serving cells. For an aperiodic report, the carrier(s)/serving cell(s) for which channel state information is reported may be determined based on the request for the aperiodic report. A report collision may occur in a subframe between a periodic CSI report for a first serving cell and a report for a second serving cell. A priority rule may be used to resolve the report collision.