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公开(公告)号：US09930709B2
公开(公告)日：2018-03-27
申请号：US14819245
申请日：2015-08-05
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Chao-Cheng Tu , Benoit Pelletier , Paul Marinier , Marian Rudolf
CPC classification number: H04W76/14 , H04W72/1252 , H04W74/04 , H04W74/0833
Abstract: Embodiments include methods and apparatuses for the design, construction and selection of base patterns and associated control signaling for direct device-to-device (D2D) communication, independent of a network. An embodiment includes the selection and transmission, by a wireless transmit and receive unit (WTRU), of base patterns in a scheduling period when the number of medium access control (MAC) protocol data units (PDUs) is larger than the number of MAC PDUs that a family of pre-determined base patterns can support. An embodiment may include the selection and transmission, by a WTRU, of base patterns in a scheduling period when the number of MAC PDUs is smaller than the number of MAC PDUs that a family of pre-determined base patterns can support. In addition, embodiments may include the selection, by a WTRU, of a base pattern or base patterns to minimize interference with other communications and to use resources efficiently.
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公开(公告)号：US20180048498A1
公开(公告)日：2018-02-15
申请号：US15543794
申请日：2016-01-28
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Janet A. Stern-Berkowitz , Pouriya Sadeghi , J. Patrick Tooher , Samian Kaur , Marian Rudolf , Pascal M. Adjakple
CPC classification number: H04L27/0006 , H04L5/0048 , H04W16/14 , H04W72/1215 , H04W72/1268 , H04W74/085
Abstract: Systems, methods, and instrumentalities are disclosed for Uplink operation in LTE unlicensed spectrum (LTE-U). A wireless transmit/receive unit (WTRU) may receive licensed assisted access (LAA) configuration information, e.g., for a first cell from a second cell. The first cell may be associated with operation in an unlicensed band, and the second cell may be associated with operation in a licensed band. The WTRU may determine whether a first subframe subframe is a sounding reference signal (SRS) subframe for the first cell. If the first subframe is an SRS subframe for the first cell, the WTRU may determine SRS resources for the first subframe and determine whether the WTRU is triggered to transmit an SRS transmission in the first subframe. If it is determined the WTRU is triggered to transmit the SRS transmission in the first subframe, the WTRU may transmit the SRS transmission on the SRS resources for the first subframe.
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33.发明申请公开(公告)号：US20180041991A1
公开(公告)日：2018-02-08
申请号：US15670685
申请日：2017-08-07
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Moon-il Lee , Chang-Soo Koo , Sung-Hyuk Shin , Janet A. Stern-Berkowitz , Marian Rudolf , Fengjun Xi , Ananth Kini , Seyed Mohsen Hosseinian , Paul Marinier
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.
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公开(公告)号：US20170331595A1
公开(公告)日：2017-11-16
申请号：US15667519
申请日：2017-08-02
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Marian Rudolf , Paul Marinier , Diana Pani , Ghyslain Pelletier , Christopher R. Cave , Lakshmi R. Iyer , Muhammad U. Fazili
CPC classification number: H04L1/1678 , H04L1/1822 , H04L1/1887 , H04L5/0007 , H04W72/0413 , H04W72/042 , H04W72/0446
Abstract: Systems and method are specified to improve the reception of UL transmission, for example in power or coverage limited situations. A WTRU may modify procedures to increase the available signal energy for reception at an eNB and/or to make more efficient use of the available signal energy at the receiver for processing UL transmissions. Example methods for increasing UL link coverage may include modifying HARQ timing (e.g., shorter HARQ), using longer TTIs, use of dedicated PUSCH allocations, use of new PUSCH modulations, enhanced reference signal design, UL macro diversity reception for PUSCH, utilizing protocol reduction techniques, ensuring in-order packet delivery, and/or utilizing a configuration for coverage limited/power limited modes of operation. The proposed methods may be applied individually or in any combination.
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公开(公告)号：US09762356B2
公开(公告)日：2017-09-12
申请号：US14374504
申请日：2013-01-24
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Marian Rudolf , Paul Marinier , Diana Pani , Ghyslain Pelletier , Christopher Cave , Lakshmi R. Iyer , Muhammad U. Fazili
CPC classification number: H04L1/1678 , H04L1/1822 , H04L1/1887 , H04L5/0007 , H04W72/0413 , H04W72/042 , H04W72/0446
Abstract: Systems and method are specified to improve the reception of UL transmission, for example in power or coverage limited situations. A WTRU may modify procedures to increase the available signal energy for reception at an eNB and/or to make more efficient use of the available signal energy at the receiver for processing UL transmissions. Example methods for increasing UL link coverage may include modifying HARQ timing (e.g., shorter HARQ), using longer TTIs, use of dedicated PUSCH allocations, use of new PUSCH modulations, enhanced reference signal design, UL macro diversity reception for PUSCH, utilizing protocol reduction techniques, ensuring in-order packet delivery, and/or utilizing a configuration for coverage limited/power limited modes of operation. The proposed methods may be applied individually or in any combination.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20170085360A1
公开(公告)日：2017-03-23
申请号：US15369633
申请日：2016-12-05
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Moon-il Lee , Allan Y. Tsai , Pouriya Sadeghi , Fengjun Xi , Marian Rudolf , Janet A. Stern-Berkowitz
CPC classification number: H04L5/16 , H04B1/50 , H04L1/1819 , H04L1/1822 , H04L1/1893 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/0055 , H04L5/0091 , H04W72/0446 , H04W72/14
Abstract: A method and apparatus for half-duplex (HD) frequency division duplex (FDD) (HD-FDD) operation are disclosed. The method in a wireless transmit/receive unit (WTRU) includes monitoring a first frequency for all downlink sub-frames for downlink communication except during a cell specific uplink frame, retuning to a second frequency and transmitting a scheduling request (SR) during a WTRU specific period of the cell specific uplink frame, wherein the WTRU specific period is based on a duty cycle, and retuning to the first frequency and receiving an uplink grant in a subsequent sub-frame.
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公开(公告)号：US09591605B2
公开(公告)日：2017-03-07
申请号：US14517243
申请日：2014-10-17
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Janet A. Stern-Berkowitz , Marian Rudolf , Charles A. Dennean
CPC classification number: H04W64/003 , G01S5/0205 , G01S5/0252 , G01S5/10 , H04L5/0048 , H04W24/10 , H04W64/00 , H04W72/0446
Abstract: A method and apparatus for supporting positioning measurements. The methods include designating a reference cell, choosing a positioning signal, and, for inter-frequency measurements, determining which inter-frequency cell to measure and how to make such an inter-frequency positioning measurement.
Abstract translation: 一种支持定位测量的方法和装置。 这些方法包括指定参考单元，选择定位信号，并且对于频率间测量，确定要测量哪个频率间单元以及如何进行这种频率间定位测量。
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公开(公告)号：US09515696B2
公开(公告)日：2016-12-06
申请号：US13836812
申请日：2013-03-15
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Moon-il Lee , Allan Y. Tsai , Pouriya Sadeghi , Fengjun Xi , Marian Rudolf , Janet A. Stern-Berkowitz
CPC classification number: H04L5/16 , H04B1/50 , H04L1/1819 , H04L1/1822 , H04L1/1893 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/0055 , H04L5/0091 , H04W72/0446 , H04W72/14
Abstract: A method and apparatus for half-duplex (HD) frequency division duplex (FDD) (HD-FDD) operation are disclosed. The method in a wireless transmit/receive unit (WTRU) includes monitoring a first frequency for all downlink sub-frames for downlink communication except during a cell specific uplink frame, retuning to a second frequency and transmitting a scheduling request (SR) during a WTRU specific period of the cell specific uplink frame, wherein the WTRU specific period is based on a duty cycle, and retuning to the first frequency and receiving an uplink grant in a subsequent sub-frame.
Abstract translation: 公开了一种用于半双工（HD）频分双工（FDD）（HD-FDD））操作的方法和装置。 无线发射/接收单元（WTRU）中的方法包括监视用于下行链路通信的所有下行链路子帧的第一频率，除了在小区特定上行链路帧期间，重新调制到第二频率并在WTRU期间发送调度请求（SR） 特定于所述小区特定上行链路帧的特定周期，其中所述WTRU特定时段基于占空比，并重新调整到所述第一频率，并且在随后的子帧中接收上行链路许可。
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公开(公告)号：US20160192385A1
公开(公告)日：2016-06-30
申请号：US14760407
申请日：2014-01-16
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： J. Patrick Tooher , Paul Marinier , Marian Rudolf
CPC classification number: H04W72/1268 , H04L5/0048 , H04L5/0051 , H04L27/2602 , H04L27/2611 , H04W72/0446
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.
Abstract translation: 公开了用于减少上行链路传输中的控制信令的方法和系统。 诸如无线发射/接收单元的设备可以确定使用多个DM-RS传输调度中的解调参考信号（DM-RS）传输调度。 DM-RS传输调度的特征可以在于数据流的每个子帧映射到单个正交频分复用（OFDM）符号的DM-RS传输。 DM-RS传输调度的特征在于DM-RS传输被映射到数据流的子帧的OFDM符号的第一子载波和物理上行链路共享信道（PUSCH）传输或物理上行链路控制信道（PUCCH） ）控制信息被映射到OFDM符号的第二组子载波。 第一组子载波可以不同于第二组副载波。 可以根据DM-RS传输时间表发送数据流。
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40.发明申请公开(公告)号：US20160183309A1
公开(公告)日：2016-06-23
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
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.
Abstract translation: 一种用于使用基于竞争的上行链路通信信道的无线发射接收单元（WTRU）的方法和装置，将基于规则的对基于竞争的上行链路信道的接入限制应用于尝试使用至少一个无竞争上行链路信道 在至少一个无竞争的上行链路信道分配被授予的条件下，用于上行链路传输的分配。
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