公开(公告)号：US20200022067A1

公开(公告)日：2020-01-16

申请号：US16336794

申请日：2017-09-28

Applicant: IDAC HOLDINGS, INC.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi ,  Chunxuan Ye ,  Moon-il Lee

IPC: H04W48/10 ,  H04W72/00 ,  H04L5/00 ,  H04W72/04 ,  H04W8/00

Abstract: A method and apparatus for use in a wireless transmit receive unit (WTRU) for receiving system information. A WTRU receives a broadcast signal from a gNB, wherein the broadcast signal includes system information. The WTRU determines configuration information associated with the received system information and the WTRU transmits a signal to the gNB using the determined configuration information associated with the received system information. The configuration information includes an indication regarding whether the WTRU is able to include any one or a combination of a request signal or a feedback signal in the signal transmitted to the gNB. The transmitted signal to the gNB may include a preamble that indicates system information block (SIB) request information. The transmitted signal to the gNB may include a control field that indicates additional SIB request information. The transmitted signal may provide feedback for the received system information. The WTRU then receives system information from the gNB in response to the transmitted signal. The received system information in response to the transmitted signal is one or more SIBs.

公开(公告)号：US20190393972A1

公开(公告)日：2019-12-26

申请号：US16481166

申请日：2018-02-02

Applicant: IDAC Holdings, Inc.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi ,  Robert L. Olesen ,  Nirav B. Shah

IPC: H04J11/00 ,  H04W72/00

Abstract: Systems, procedures, and instrumentalities are disclosed for synchronizing a signal burst, signal design, and/or system frame acquisition. A synchronization signal (SS) block or burst may be received. The SS block or burst may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and/or a Physical Broadcast Channel (PBCH). A first cell ID may be determined and/or a plurality of SSS sequences may be generated. An m0 value (e.g., a first cyclic shift) may be determined from a set of m0 values, for example, based on the generated plurality of SSS sequences. An n1 value (e.g., a second cyclic shift) may be determined from a set of n1 values. A second cell ID may be determined, for example, based on the m0 value and the n1 value. A third cell ID may be determined, for example, based on the second cell ID and the first cell ID.

公开(公告)号：US20190387550A1

公开(公告)日：2019-12-19

申请号：US16473241

申请日：2018-01-04

Applicant: IDAC Holdings, Inc.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi ,  Robert L. Olesen

IPC: H04W74/08 ,  H04W74/02 ,  H04L5/00 ,  H04L27/26

Abstract: Systems, methods, and instrumentalities are disclosed for NR-PBCH, initial uplink (UL) transmission and system acquisition in NR, including procedures for system acquisition, initial UL transmission, cell ID detection, indicating an SS-block Index and determining subframe timing. A WTRU may receive a first part of minimum system information. The first part of minimum system information (MSI) may include subcarrier spacing (SCS) information associated with a second part of MSI. The WTRU may receive the second part of MSI. The second part of MSI may include information associated with transmitting a physical random access channel (PRACH) request (e.g., PRACH preamble, SCS information, orthogonal cover code (OCC)). The WTRU may configure a PRACH request. The PRACH request may follow a first or a second configuration. The PRACH request may include a cyclic prefix (CP), a guard time (GT), and one or more preamble sequences. The preamble sequences may be repeated.

公开(公告)号：US20190357159A1

公开(公告)日：2019-11-21

申请号：US16482871

申请日：2018-01-26

Applicant: IDAC HOLDINGS, INC.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi ,  Steven Ferrante ,  Chunxuan Ye ,  Janet A. Stern-Berkowitz ,  Nirav B. Shah

IPC: H04W56/00 ,  H04L5/10 ,  H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04W72/04

Abstract: A method and apparatus are disclosed for demodulating a NR-PBCH signal. The method may comprise receiving a primary SS and an SSS. The received SSS signal may be used as a reference signal to detect demodulation reference signals of the NR-PBCH. These demodulation reference signals may be interleaved with data on the NR-PBCH. In one method, the NR-PBCH DMRS are associated with an SSB index in an effort to improve randomization in the synchronization process. The NR-PBCH payload may be demodulated using the PSS and/or SSS and the DMRS. In one embodiment, the NR-PBCH DMRS may mapped to DMRS REs on a frequency first and time second mapping basis.

公开(公告)号：US20190334659A1

公开(公告)日：2019-10-31

申请号：US16473552

申请日：2018-01-05

Applicant: IDAC Holdings, Inc.

Inventor： Chunxuan Ye ,  Kyle Jung-Lin Pan ,  Fengjun Xi

IPC: H04L1/18 ,  H04L1/00

Abstract: Systems, methods, and instrumentalities are disclosed for advanced coding on retransmission of data and/control information. The systems methods, and instrumentalities may include one or more of the following: chase combining for retransmission; incremental redundancy (IR) hybrid automatic repeat request (IR-HARQ); or incremental freezing (IF) HARQ. IF-HARQ may use lower coding rates and/or increased mother codeword length. IF-HARQ for retransmission with joint encoding and transmission of failed data and/or control message(s) (e.g., new control message(s)) may be used. This may include one or more of the following: increased priority for retransmission data and mapping retransmitted data to more reliable bit channels; or allocating more PC frozen bits for retransmitted data. A HARQ decision may be provided. For example, a decision may be made between the use of chase combining (CC) HARQ, IR-HARQ, or IF-HARQ. For IF-HARQ, additional decisions may be made.

公开(公告)号：US20190319745A1

公开(公告)日：2019-10-17

申请号：US16473013

申请日：2018-01-04

Applicant: IDAC Holdings, Inc.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi

IPC: H04L1/00 ,  H04L29/08 ,  H04J11/00

Abstract: Systems, methods, and instrumentalities are disclosed for error check-based synchronization. Physical Broadcast Channel (PBCH) data may be determined. A scrambling (e.g., a first scrambling) of the PBCH data may be scrambled via a sequence (e.g., a first sequence). The first sequence may be based on a cell ID and/or timing information. Error check bits may be attached to the scrambled PBCH data and to the timing information. The error check bits may include one or more cyclic redundancy check (CRC) bits. The scrambled PBCH data, the timing information (e.g., the unscrambled timing information), and/or the attached error check bits may be polar encoded. The polar encoding may result in polar encoded bits. A scrambling (e.g., a second scrambling) of the polar encoded bits may be scrambled via a sequence (e.g., a second sequence). The first sequence and the second sequence may be different. The polar encoded bits may be transmitted.

公开(公告)号：US20190149199A1

公开(公告)日：2019-05-16

申请号：US16099965

申请日：2017-05-09

Applicant: IDAC Holdings, Inc.

Inventor： Steven Ferrante ,  Robert L Olesen ,  Kyle Jung-Lin Pan ,  Fengjun Xi ,  Hanqing Lou

IPC: H04B7/0417 ,  H04L25/02 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/0634 ,  H04L1/005 ,  H04L1/0058 ,  H04L1/006 ,  H04L25/0204 ,  H04L25/0228

Abstract: Methods are described for performing joint coded spatial and/or antenna based modulation. A first device may receive, from a second device, one or more pilot signals associated with one or more transmit antennas, antenna patterns, and/or antenna polarizations. The first device may determine channel related information associated with an antenna pair based on the pilot signals. The channel related information may include one or more channel cross correlation coefficients. The first device may determine a set-partition, for example, based on the channel related information. The first device may configure a dynamically configurable Trellis Coded Modulation (TCM) decoder based on the determined set-partition.

公开(公告)号：US20190140784A1

公开(公告)日：2019-05-09

申请号：US16300377

申请日：2017-05-09

Applicant: IDAC HOLDINGS, INC.

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

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

Abstract: 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：US20190103883A1

公开(公告)日：2019-04-04

申请号：US16087256

申请日：2017-03-28

Applicant: IDAC Holdings, Inc.

Inventor： Chunxuan Ye ,  Fengjun Xi ,  Kyle Jung-Lin Pan

IPC: H03M13/13 ,  H03M13/35 ,  H04B7/0456 ,  H03M13/00 ,  H04L1/00

Abstract: Systems, methods, and instrumentalities are disclosed for joint source and polar coding. Source bits may be received and/or ordered based on the priorities of the source bits. The ordered source bits may be grouped. For example, the source bits may be grouped into one or more blocks. The ordered source bits may be distributed among the one or more blocks. For example, the ordered source bits may be distributed among the one or more blocks based on priorities of the ordered source bits. The ordered source bits may be mapped to polar coder ports. For example, the ordered source bits may be mapped to the polar coder ports based on a reliability of the polar codes of the ordered source bits. The transmitter may transmit the mapped ordered source bits of the one or more blocks. Polar encoding of the respective mapped ordered source bits may be performed.

公开(公告)号：US20190028237A1

公开(公告)日：2019-01-24

申请号：US16066861

申请日：2016-12-30

Applicant: IDAC HOLDINGS, INC.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi ,  Byung K. Yi ,  Robert L. Olesen

IPC: H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04B17/336 ,  H04L27/26

Abstract: A wireless transmit/receive unit (WTRU) may receive a unique word-error check (UW-EC) encoded signal. A pre-decoder data check entity may check for errors based on EC bits and systematic and parity bits from the UW-EC encoded signal. If an error is not detected at the pre-decoder data check entity, data without an error may be signaled to a source decoder without channel decoding.