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公开(公告)号：US20230262676A1
公开(公告)日：2023-08-17
申请号：US18137612
申请日：2023-04-21
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Tao Deng , Yugeswar Deenoo , Philip J. Pietraski , Ravikumar V. Pragada
IPC: H04W72/044
CPC classification number: H04W72/046 , H04W72/23
Abstract: A wireless transmit/receive unit (WTRU) (e.g., a millimeter WTRU (mWTRU)) may receive a first control channel using a first antenna pattern. The WTRU may receive a second control channel using a second antenna pattern. The WTRU may demodulate and decode the first control channel. The WTRU may demodulate and decode the second control channel. The WTRU may determine, using at least one of: the decoded first control channel or the second control channel, beam scheduling information associated with the WTRU and whether the WTRU is scheduled for an mmW segment. The WTRU may form a receive beam using the determined beam scheduling information. The WTRU receive the second control channel using the receive beam. The WTRU determine, by demodulating and decoding the second control channel, dynamic per-TTI scheduling information related to a data channel associated with the second control channel.
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公开(公告)号：US11470553B2
公开(公告)日：2022-10-11
申请号：US16768129
申请日：2018-11-30
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Tanbir Haque , Ravikumar V. Pragada , Anantharaman Balasubramanian , Alpaslan Demir
Abstract: A wireless transmit/receive unit (WTRU) may include one or more antennas and a first transceiver operatively coupled to the antennas. The one or more antennas and the first transceiver may be configured to receive a first signal from a network using zero energy from the WTRU. The one or more antennas and the first transceiver may be further configured to extract energy from the first signal. The first transceiver may be further configured to examine a separation between energy threshold events to decode an energy signature of the first signal. The first transceiver may be further configured to activate a second transceiver operatively coupled to the one or more antennas if the decoded energy signature matches a stored energy signature, wherein the second transceiver is powered by the WTRU. The one or more antennas and the second transceiver may be configured to receive a second signal from the network.
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公开(公告)号：US11265383B2
公开(公告)日：2022-03-01
申请号：US14397443
申请日：2013-04-27
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Alexander Reznik , Yogendra C. Shah , Eldad M. Zeira , Ravikumar V. Pragada , Balaji Raghothaman , Kiran K. Vanganuru , Gregory S. Sternberg , Vinod Kumar Choyi , Xavier De Foy
IPC: H04L29/08 , H04L67/141 , H04L67/51 , H04L69/24 , H04L29/06 , H04W12/08 , H04L67/142
Abstract: Systems and methods for enabling proximity services to be delivered as part of an application service and/or for providing tailored services and/or a differential quality of service (QoS) to a flow may be disclosed. For example, a temporary service name between an application and a server such as a D2D server may be established such that a UE and/or network may execute such a service at a later time without later involvement by the application and/or without exchanging credentials for the application with the network and vice versa.
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公开(公告)号：US11122587B2
公开(公告)日：2021-09-14
申请号：US14766075
申请日：2014-02-07
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Arnab Roy , Yugeswar Deenoo , Ravikumar V. Pragada , Onur Sahin , Philip J. Pietraski
Abstract: Methods and apparatuses are described herein that facilitate mesh network communication by a millimeter wave base stations (mBs) or WTRUs as nodes of a directional mesh network with other nodes of the directional mesh network. The mB or WTRU may include a directional antenna configured to transmit and receive signals in specific directions during the mesh network communication to define a directional mesh network. The mBs or WTRUs may transmit transmission request messages to neighbor nodes, wherein the transmission request messages include transmission slot allocation bitmaps and channel quality indicator information (CQI). Then response messages from the neighbor nodes may be received, wherein the response messages include receive slot allocation bitmaps and resource allocation decisions. The mBs or WTRUs may then update their transmission slot allocation bitmaps based on the received response messages and transmit data packets in specific directions based on the updated transmission slot allocation bitmap.
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公开(公告)号：US10652947B2
公开(公告)日：2020-05-12
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
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.
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Patent Agency Ranking
公开(公告)号：US20200045574A1
公开(公告)日：2020-02-06
申请号：US16597663
申请日：2019-10-09
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Xiaofei Wang , Guodong Zhang , Robert L. Olesen , Arnab Roy , Qian Zhang , Douglas R. Castor , Ravikumar V. Pragada
Abstract: A method for use by an S-REDS may comprise quasi-omni broadcasting a multi-relay channel measurement request to one or more RDSs. The S-REDS may receive a first multi-relay channel measurement report from a first RDS of the one or more RDSs. The first multi-relay channel measurement report may contain first channel measurement information associated with a channel between the first RDS and the S-REDS. The S-REDS may further receive a second multi-relay channel measurement report from the first RDS of the one or more RDSs. The second multi-relay channel measurement report contains second channel measurement information associated with a channel between the first RDS of the one or more RDSs and a D-REDS.
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公开(公告)号：US20180206139A1
公开(公告)日：2018-07-19
申请号：US15742678
申请日：2016-07-08
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Xiaofei Wang , Guodong Zhang , Robert L. Olesen , Arnab Roy , Qian Zhang , Douglas R. Castor , Ravikumar V. Pragada
CPC classification number: H04W24/10 , H04B7/15507 , H04B7/2606 , H04W84/12
Abstract: Systems and methods are provided for transmitting a relay search request frame from a source relay edge directional multigigabit (DMG) station STA (REDS) to the AP and receiving a relay search response frame including a list of at least a first and second relay DMG STA (RDS) in a wireless network. Systems and methods are further provided for transmitting over a first data stream through a direct link between the source REDS and the destination REDS, transmitting over a second data stream through the first RDS between the source REDS and the destination REDS, and transmitting over a third data stream through the second RDS between the source REDS and the destination REDS. Directional-band relay in wireless communications may be used in range extension where two wireless nodes may set up a relayed link without first forming a direct link between them.
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公开(公告)号：US09706505B2
公开(公告)日：2017-07-11
申请号：US14684931
申请日：2015-04-13
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: H04W4/00 , H04W52/34 , H04L5/00 , H04W16/08 , H04W52/40 , H04W24/08 , H04W52/24 , H04W52/32 , H04W72/04 , H04W52/14 , H04W52/28 , H04W36/00
CPC classification number: H04W52/346 , H04L5/001 , H04L5/0035 , H04L5/0062 , H04L5/0073 , H04W16/08 , H04W24/08 , H04W36/0083 , H04W52/143 , H04W52/242 , H04W52/283 , H04W52/325 , H04W52/34 , H04W52/343 , H04W52/40 , H04W72/0413 , Y02D70/00
Abstract: A method and apparatus are described. A wireless transmit/receive unit (WTRU) includes circuitry that determines transmission power levels associated with physical uplink shared channel (PUSCH) transmissions over a plurality of uplink component carriers. On a condition that maximum power scaling is required, the circuitry prioritizes providing power to a physical uplink control channel (PUCCH) over providing power to a physical uplink shared channel (PUSCH) having uplink control information (UCI) and prioritize providing power to the PUCCH and PUSCH having UCI over a PUSCH not having UCI. The circuitry transmits the PUCCH, the PUSCH having UCI or at least one PUSCH not having UCI over the plurality of uplink component carriers.
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公开(公告)号：US20170156046A1
公开(公告)日：2017-06-01
申请号：US15362295
申请日：2016-11-28
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Tao Deng , Ravikumar V. Pragada , Gregory S. Sternberg , Balaji Raghothaman , Zhuorong Deng , Kiran K. Vanganuru
CPC classification number: H04W8/005 , H04W24/04 , H04W24/08 , H04W24/10 , H04W48/08 , H04W48/14 , H04W76/18 , H04W88/06
Abstract: A method and apparatus for neighbor discovery in a wireless communication system are disclosed. A neighbor seeking wireless transmit/receive unit (WTRU) may search for a first signal to discover neighbor WTRUs for peer-to-peer communication. The WTRU may then receive the first signal. Further, the WTRU may generate a report based on the received first signal. Then, the WTRU may send a second signal carrying the report to a cellular wireless network. The first signal may include a beacon for neighbor discovery or a synchronization signal or both. The report may contain at least one neighbor WTRU identity or at least a portion of a time value or both. Further, the report may contain a counter value, including at least a portion of a time value. The counter value may be based on a time source. In addition, the first signal may be received from a synchronization source.
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公开(公告)号：US09629171B2
公开(公告)日：2017-04-18
申请号：US14423362
申请日：2013-08-28
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Arnab Roy , Ravikumar V. Pragada , Philip J. Pietraski , Bharath Viswanathan
CPC classification number: H04W16/28 , H04B7/0695 , H04B7/088 , H04W24/08 , H04W36/0083 , H04W36/0094 , H04W36/30 , H04W64/00 , H04W64/003 , H04W72/048 , H04W72/085 , H04W88/08
Abstract: A method and apparatus for improving and performing mmW beam tracking is disclosed. Localization methods to improve prediction of the position of a WTRU are described, which may allow a millimeter wave base station (mB) to appropriately select a modified beam and to perform more efficient handover. WTRUs may report directional signal strength measurements to mBs, which may then be used to generate a directional radio environment map (DREM) for use in identifying secondary links to use when a primary link fails. Additional localization techniques using internal/external information for prediction are described. Historical data use and the use of data obtained from mB-mB cooperation including feedback information and reference signaling information are also described. Methods for beam tracking for directional relays and initial beam training optimization are described as well. Finally, WTRU localization precision improvement, beamwidth adaptation, and assisted beam tracking and handover methods are also described.
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