公开(公告)号：US11083010B2

公开(公告)日：2021-08-03

申请号：US16542367

申请日：2019-08-16

申请人： IDAC Holdings, Inc.

发明人： Kyle Jung-Lin Pan ,  Fengjun Xi ,  HaoHao Qin

IPC分类号： H04W74/00 ,  H04W74/08 ,  H04W72/12 ,  H04L5/00 ,  H04W48/16

摘要： Random access may be provided for integrated access and backhaul (IAB) for New Radio (NR). A wireless transmit/receive unit may send (e.g., to a gNB) a preamble in a random access occasion (RO). One or more of the preamble or an RO resource partition of the RO may indicate a node type of the WTRU. The WTRU may receive (e.g., from the gNB) a physical downlink control channel (PDCCH) that indicates (e.g., includes) one or more random access responses (RARs). The WTRU may determine that the PDCCH indicates a WTRU RAR and an integrated access and backhaul (IAB) node RAR. If the sent node type is a WTRU node type, the WTRU may receive (e.g., from the gNB) the WTRU RAR at a first time and frequency location indicated by the PDCCH.

公开(公告)号：US10826539B2

公开(公告)日：2020-11-03

申请号：US16300377

申请日：2017-05-09

申请人： IDAC HOLDINGS, INC.

发明人： Fengjun Xi ,  Chunxuan Ye ,  Kyle Jung-Lin Pan ,  Hanqing Lou ,  Nirav B. Shah

IPC分类号： H03M13/29 ,  H03M13/09 ,  H03M13/37 ,  H03M13/00 ,  H04L1/16 ,  H04L1/18 ,  H04L1/00 ,  H04L5/00

摘要： Communication devices, systems and methods for performing multi-layer packet coding (MLPC) in a wireless system are provided. The MLPC includes segmenting a data stream into a plurality of data segments, encoding each of the plurality of data segments into a plurality of forward error correction (FEC) codewords, performing a first exclusive OR (XOR) operation on the plurality of FEC codewords to generate a plurality of first layer parity codewords, performing a second XOR operation on the plurality of first layer parity codewords to generate at least one second layer parity codeword, and transmitting at least one of: the plurality of FEC codewords, the plurality of first layer parity codewords, or the at least one second layer parity codeword.

公开(公告)号：US20200287659A1

公开(公告)日：2020-09-10

申请号：US16763599

申请日：2018-11-12

申请人： IDAC Holdings, Inc.

发明人： Chunxuan Ye ,  Fengjun Xi ,  Kyle Jung-Lin Pan

IPC分类号： H04L1/00 ,  H04L1/18

摘要： Systems, procedures, and instrumentalities are disclosed for transmissions with polar codes. A transmitting entity may determine a mother code length. The mother code length may be based on value(s), e.g., a maximum number of transmissions. The transmitting entity may determine a number of information bits to be polar encoded. The number of information bits may be larger than a number of payload bits. The transmitting entity may map the number of information bits to a number of bit channels of a polar code. The transmitting entity may polar encode the information bits in the bit channels using the determined mother code length. The transmitting entity may partition the polar encoded bits into a number of parts. The number of parts may be based on one or more values, e.g., the maximum number of transmissions. The transmitting entity may transmit bits that have been interleaved to a circular buffer.

公开(公告)号：US20200287654A1

公开(公告)日：2020-09-10

申请号：US16763615

申请日：2018-11-12

申请人： IDAC Holdings, Inc.

发明人： Fengjun Xi ,  Chunxuan Ye ,  Kyle Jung-Lin Pan

IPC分类号： H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04W76/11 ,  H03M13/13 ,  H04L1/20

摘要： Systems, methods, and instrumentalities are described herein for supporting CBG-based retransmission with variable CBG size using variable length HARQ-ACK. A WTRU may receive a configuration to use a first table. The first table may be associated with a maximum number of code block groups per transport block (maxCBG/TB). The WTRU may determine a number of HARQ-ACK bits to send for code blocks. The determination may depend on whether an indication is received to switch from the first table to a second table. On a condition that the indication to switch from the first table to the second table is received, the WTRU may send a number of HARQ-ACK bits that is equal to two times the maxCBG/TB. The WTRU may receive a retransmission of a number of code blocks, wherein a code block group size depends on a sent number of HARQ-ACK bits.

公开(公告)号：US10756796B2

公开(公告)日：2020-08-25

申请号：US16088363

申请日：2017-03-29

申请人： IDAC Holdings, Inc.

发明人： Steven Ferrante ,  Fengjun Xi ,  Rui Yang ,  Chunxuan Ye ,  Kyle Jung-Lin Pan

IPC分类号： H04B7/06 ,  H04B7/0456 ,  H04B7/10

摘要： Systems and methods described herein are provided for radiation pattern and modulation (RPM) based on channel-state information (CSI). The method may comprise receiving a set of bits; dividing the set of bits into at least three groups, wherein at least one group is size limited by a diversity order and selection factor applied by a CSI controller; mapping the groups to distinct control signals; generating a modulated RF signal and selecting at least one configurable antenna and a configuration of said at least one antenna based on the control signals; and transmitting the modulated RF signal through the at least one configured antenna.

公开(公告)号：US20200037297A1

公开(公告)日：2020-01-30

申请号：US16337057

申请日：2017-09-28

申请人： IDAC HOLDINGS, INC.

发明人： Kyle Jung-Lin Pan ,  Janet A. Stern-Berkowitz ,  Moon-il Lee ,  Fengjun Xi

IPC分类号： H04W72/04 ,  H04W72/00 ,  H04W56/00 ,  H04W16/28

摘要： A method and system for determining beam reciprocity for a beam of a wireless transmit/receive unit (WTRU) are disclosed. A WTRU may determine a downlink (DL) beam for synchronization. Then, the WTRU may determine transmission reception point (TRP) transmit (TX)/receive (RX) beam correspondence information (BCI) using the determined DL beam. Further, the WTRU may determine a number of WTRU TX beams based on at least the TRP TX/RX BCI. Also, the WTRU may determine a set of WTRU TX beams based on at least the DL beam and the TRP TX/RX BCI, wherein determining the set includes determining one or more WTRU TX beam directions. In addition, the WTRU may transmit data using the determined set of WTRU TX beams. In an example, the determination of the TRP TX/RX BCI may be based on a received TRP TX/RX BCI.

公开(公告)号：US10536312B2

公开(公告)日：2020-01-14

申请号：US15780326

申请日：2016-12-02

申请人： IDAC HOLDINGS, INC.

发明人： Kyle Jung-Lin Pan ,  Mihaela C. Beluri ,  Ravikumar V. Pragada ,  Erdem Bala ,  Yugeswar Deenoo ,  Liangping Ma ,  Tao Deng ,  Vincent Roy

IPC分类号： H04W52/02 ,  H04L27/26 ,  H04L5/00

摘要： Systems, methods, and instrumentalities are disclosed for generating, transmitting, and/or receiving a hybrid spread waveform. The hybrid spread waveform may include a data portion and a hybrid guard interval (HGI) portion. The HGI portion may include a fixed prefix portion or a fixed suffix portion, and an adaptive low power tail (LPT) portion. The fixed prefix portion or the fixed suffix portion is a low power cyclic prefix (LPCP). The LPCP may be generated at least based on at least the channel delay spread and a power regrowth length. The adaptive LPT portion may be generated using a zero tail (ZT). The LPT is generated by inserting zeros at IFFT or DFT processing stage. A part of the adaptive LPT portion is used to carry data or control information. A waveform may be switched between a hybrid spread waveform and a fixed-CP waveform, e.g., via control signaling.

公开(公告)号：US20190215133A1

公开(公告)日：2019-07-11

申请号：US16315534

申请日：2016-07-05

申请人： IDAC Holdings, Inc.

发明人： Kyle Jung-Lin Pan ,  Arnab Roy ,  Mohamed Abou El Seoud ,  Fengjun Xi ,  Kevin T. Wanuga ,  William E. Lawton ,  Janet A. Stern-Berkowitz

IPC分类号： H04L5/00 ,  H04L1/00 ,  H04W72/04

CPC分类号： H04L5/0064 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0061 ,  H04L5/0007 ,  H04L5/0082 ,  H04L5/0091 ,  H04L27/183 ,  H04L27/3488 ,  H04W72/042 ,  H04W72/0446

摘要： Systems, procedures, and instrumentalities are disclosed providing mixed data services such as mixed URLLC and eMBB services. In one example implementation, hierarchical modulation is dynamically configured and/or applied to provide the mixed services. The dynamic configuration and application of hierarchical modulation may be based on the respective priorities of the services and a condition of the concerned wireless network. The provision of the mixed services may utilize polar coding techniques. Control information may be mixed with data associated with the services.

公开(公告)号：US11683125B2

公开(公告)日：2023-06-20

申请号：US17746795

申请日：2022-05-17

申请人： IDAC Holdings, Inc.

发明人： Chunxuan Ye ,  Fengjun Xi ,  Sungkwon Hong ,  Kyle Jung-Lin Pan ,  Robert L. Olesen

IPC分类号： H04L1/00 ,  H03M13/00 ,  H03M13/05 ,  H03M13/27 ,  H03M13/29 ,  H03M13/13

CPC分类号： H04L1/0071 ,  H03M13/05 ,  H03M13/13 ,  H03M13/27 ,  H03M13/2778 ,  H03M13/2792 ,  H03M13/2906 ,  H03M13/618 ,  H03M13/6306 ,  H03M13/6356 ,  H03M13/6362 ,  H03M13/6368 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0067

摘要： 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.

公开(公告)号：US11595953B2

公开(公告)日：2023-02-28

申请号：US17073146

申请日：2020-10-16

申请人： IDAC Holdings, Inc.

发明人： Yugeswar Deenoo ,  Tao Deng ,  Kyle Jung-Lin Pan ,  Moon-il Lee ,  Ravikumar V. Pragada ,  Janet A. Stern-Berkowitz ,  Mihaela C. Beluri

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04W72/044

摘要： 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.