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公开(公告)号：US11290998B2
公开(公告)日：2022-03-29
申请号：US17085903
申请日：2020-10-30
Applicant: IDAC HOLDINGS, INC.
Inventor： Kyle Jung-Lin Pan , Janet A. Stern-Berkowitz , Moon-il Lee , Fengjun Xi
Abstract: A wireless transmit/receive unit (WTRU) may receive, from a base station, information concerning an association between synchronization signal/physical broadcast channel (SS/PBCH) block transmissions and physical random access channel (PRACH) resources. In an example, each SS/PBCH block transmission may be associated with a transmission beam of the base station. The WTRU may receive the SS/PBCH block transmissions and select one of the transmissions. Further, the WTRU may compare a reference signal received power (RSRP) associated with the selected transmission to a threshold. The WTRU may then determine between performing a random access procedure of a first type and a second type based on the comparison. Also, the WTRU may select a PRACH resource based on the selected transmission and the information concerning the association between the transmissions and the PRACH resources. Moreover, the WTRU may transmit a PRACH preamble, for the determined random access procedure, using the selected PRACH resource.
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公开(公告)号：US20210377912A1
公开(公告)日：2021-12-02
申请号：US17278002
申请日：2019-09-25
Applicant: IDAC HOLDINGS, INC.
Inventor： Aata El Hamss , Martino M. Freda , Tao Deng , Tuong Duc Hoang , Chunxuan Ye , Fengjun Xi , Kyle Jung-Lin Pan
Abstract: A WTRU apparatus and method for operation thereby are provided. The method may comprise receiving, from a network, a mapping rule which indicates HARQ feedback characteristics to employ for a QoS level and a channel load. The WTRU may determine a QoS level of data buffered for transmission and may further determine a channel load of a channel. Based on the QoS level and channel load, HARQ feedback characteristics may be determined. The WTRU may then transmit an SCI to another WTRU which indicates the HARQ feedback characteristics. In an embodiment, the mapping rule may indicate that a HARQ feedback format is to be used for HARQ feedback of the data. The data may be transmitted and HARQ feedback of the data may be received in accordance with the HARQ feedback format. Groupcast data may be transmitted to a plurality of WTRUs and feedback my be received.
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公开(公告)号：US11070317B2
公开(公告)日：2021-07-20
申请号：US16494666
申请日：2018-03-21
Applicant: IDAC Holdings, Inc.
Inventor： Chunxuan Ye , Fengjun Xi , Sungkwon Hong , Kyle Jung-Lin Pan , Robert L. Olesen
Abstract: Systems, methods, and instrumentalities are disclosed for interleaving coded bits. A wireless transmit/receive unit (WTRU) may generate a plurality of polar encoded bits using polar encoding. The WTRU may divide the plurality of polar encoded bits into sub-blocks of equal size in a sequential manner. The WTRU may apply sub-block wise interleaving to the sub-blocks using an interleaver pattern. The sub-blocks associated with a subset of the sub-blocks may be interleaved, and sub-blocks associated with another subset of the sub-blocks may not be interleaved. The sub-block wise interleaving may include applying interleaving across the sub-blocks without interleaving bits associated with each of the sub-blocks. The WTRU may concatenate bits from each of the interleaved sub-blocks to generate interleaved bits, and store the interleaved bits associated with the interleaved sub-blocks in a circular buffer. The WTRU may select a plurality of bits for transmission from the interleaved bits.
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公开(公告)号：US20210167821A1
公开(公告)日：2021-06-03
申请号：US17268004
申请日：2019-08-16
Applicant: IDAC HOLDINGS, INC.
Inventor： Wei Chen , Fengjun Xi , Kyle Jung-Lin Pan
IPC: H04B7/0408 , H04B7/0404 , H04B7/06
Abstract: Methods and apparatus for beam management are disclosed. A WTRU may include a plurality of antenna panels, each antenna panel comprising a plurality of antennas configured to transmit on directional transmit (TX) beams. The WTRU may send, to a transmission reception point (TRP), antenna panel capability information for the plurality of antenna panels and receive a reference signal (RS) configuration for configuring RS resource sets. The WTRU may send an RS transmission trigger frame identifying triggered RS resource sets from the configured RS resource sets. The WTRU may identify a set of antenna panels to be used with the triggered RS resource sets. The WTRU may determine an UL TX beam sweeping mode and an association between the triggered RS resources sets and the set of antenna panels. The WTRU may perform UL beam sweeping using the triggered RS resource sets and associated set of antenna panels.
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公开(公告)号：US11005597B2
公开(公告)日：2021-05-11
申请号：US16620354
申请日：2018-06-13
Applicant: IDAC Holdings, Inc.
Inventor： Fengjun Xi , Chunxuan Ye , Kyle Jung-Lin Pan , Sungkwon Hong
IPC: H04L1/00
Abstract: A wireless transmit receive unit (WTRU) may receive a Physical Downlink Control Channel (PDCCH) transmission and perform early termination on the PDCCH transmission. Transmissions that are not intended for the WTRU may be terminated. The WTRU may perform a first decode of the PDCCH transmission based on a first scrambling sequence. The first scrambling sequence may be generated using a Gold sequence, which may be initialized based on a WTRU identifier. If the first decode is not successful, the WTRU may determine that the PDCCH transmission is not intended for the WTRU. The WTRU may perform an assistance bit added (ABA) polar decode of the PDCCH transmission based on a second scrambling sequence (e.g., a cell radio network temporary ID (C-RNTI)). The WTRU may perform a CRC on the output of the ABA polar decode to obtain downlink control information (DCI).
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Patent Agency Ranking
公开(公告)号：US20210067300A1
公开(公告)日：2021-03-04
申请号：US16961223
申请日：2019-01-08
Applicant: IDAC Holdings, Inc.
Inventor： Kyle Jung-Lin Pan , Fengjun Xi , Erdem Bala , Chunxuan Ye
IPC: H04L5/00 , H04L27/26 , H04W24/10 , H04B17/309
Abstract: Systems, methods, and instrumentalities are described herein that may be used for NOMA resource selection. Different types of NOMA resources may be configured by a network and selected by a WTRU based on rules, priorities, fairness, overloading factors, multiple access signature sizes, measurement results, payload sizes, and/or the like. Single-NOMA operations may be performed using DFT-invariant codewords. Multiple NOMA schemes may coexist with different codeword types and/or codeword sizes.
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公开(公告)号：US10924229B2
公开(公告)日：2021-02-16
申请号：US16088075
申请日：2017-03-29
Applicant: IDAC Holdings, Inc.
Inventor： Fengjun Xi , Steven Ferrante , Kyle Jung-Lin Pan , Alphan Sahin , Chunxuan Ye , Robert L. Olesen
IPC: H04L5/00 , H04B7/0456 , H04B7/10 , H04L1/00
Abstract: Systems and methods related to increased spectrum efficiency for 5G communications, comprising combining time, frequency, spatial, and signal domains for multi-dimension modulation. In one embodiment, the ability of reconfigurable antenna to change their radiation pattern and/or polarization modes may be used to modulate additional information onto the conventional SM-MIMO transmitted signal. In further embodiments, various combinations of space shift keying, block coding, multi-carrier modulation, and the like may be used to introduce additional dimensions for data modulation and achieve diversity gain.
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公开(公告)号：US20210037511A1
公开(公告)日：2021-02-04
申请号：US17073146
申请日：2020-10-16
Applicant: IDAC Holdings, Inc.
Inventor： Yugeswar Deenoo , Tao Deng , Kyle Jung-Lin Pan , Moon-il Lee , Ravikumar V. Pragada , Janet A. Stern-Berkowitz , Mihaela C. Beluri
Abstract: Transmit and/or receive beamforming may be applied to the control channel transmission/reception, e.g., in mmW access link system design. Techniques to identify candidate control channel beams and/or their location in the subframe structure may provide for efficient WTRU operation. A framework for beam formed control channel design may support varying capabilities of mBs and/or WTRUs, and/or may support time and/or spatial domain multiplexing of control channel beams. For a multi-beam system, modifications to reference signal design may discover, identify, measure, and/or decode a control channel beam. Techniques may mitigate inter-beam interference. WTRU monitoring may consider beam search space, perhaps in addition to time and/or frequency search space. Enhancements to downlink control channel may support scheduling narrow data beams. Scheduling techniques may achieve high resource utilization, e.g., perhaps when large bandwidths are available and/or WTRUs may be spatially distributed.
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公开(公告)号：US10813085B2
公开(公告)日：2020-10-20
申请号：US15775028
申请日：2016-11-10
Applicant: IDAC HOLDINGS, INC.
Inventor： Yugeswar Deenoo , Tao Deng , Kyle Jung-Lin Pan , Moon-il Lee , Ravikumar V. Pragada , Janet A. Stern-Berkowitz , Mihaela C. Beluri
Abstract: Transmit and/or receive beamforming may be applied to the control channel transmission/reception, e.g., in mmW access link system design. Techniques to identify candidate control channel beams and/or their location in the subframe structure may provide for efficient WTRU operation. A framework for beam formed control channel design may support varying capabilities of mBs and/or WTRUs, and/or may support time and/or spatial domain multiplexing of control channel beams. For a multi-beam system, modifications to reference signal design may discover, identify, measure, and/or decode a control channel beam. Techniques may mitigate inter-beam interference. WTRU monitoring may consider beam search space, perhaps in addition to time and/or frequency search space. Enhancements to downlink control channel may support scheduling narrow data beams. Scheduling techniques may achieve high resource utilization, e.g., perhaps when large bandwidths are available and/or WTRUs may be spatially distributed.
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公开(公告)号：US20200288479A1
公开(公告)日：2020-09-10
申请号：US16763609
申请日：2018-11-15
Applicant: IDAC HOLDINGS, INC.
Inventor： Fengjun Xi , Wei Chen , Kyle Jung-Lin Pan , Moon-il Lee , Chunxuan Ye
Abstract: A wireless transmit/receive unit (WTRU) may monitor control resource sets (CORESETs) to receive a physical downlink control channel (PDCCH) having downlink control information (DCI) that includes a scheduling offset and an indicated beam for a scheduled physical downlink shared channel (PDSCH) reception. When the scheduling offset of the scheduled PDSCH is less than a threshold, a default beam of a transmission configuration indication (TCI) state may be utilized to receive the scheduled PDSCH. When the scheduling offset of the scheduled PDSCH is more than a threshold, the indicated beam is utilized to receive the scheduled PDSCH on a condition that a measured quality is above a measurement threshold or the default beam may be utilized when the measured quality is below the measurement threshold.
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