公开(公告)号：US11671301B2

公开(公告)日：2023-06-06

申请号：US16495253

申请日：2018-03-22

Applicant: IDAC Holdings, Inc.

Inventor： Erdem Bala ,  Moon-il Lee ,  Afshin Haghighat ,  Alphan Sahin ,  Rui Yang ,  Frank La Sita

IPC: H04L27/26 ,  H04W72/04 ,  H04L5/00 ,  H04W72/044

CPC classification number: H04L27/2636 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2613 ,  H04W72/044

Abstract: Methods, apparatus, systems, architectures and interfaces for reference signal (RS) configuration, generation, and/or transmission in a transmitter/receiver. The method includes receiving information indicating any of at least first and second modes of operation for transmitting a discrete Fourier transform (DFT)-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) symbol including a reference signal (RS), and transmitting the DFT-s-OFDM symbol including: (1) the RS and data tones, on condition that the information indicates the first mode; or (2) the RS and null tones, on condition that the information indicates the second mode, wherein the DFT-s-OFDM symbol is divided into a number of segments, each including a chunk of RS tones, and wherein any of a size or a location of the chunk is determined according to any of the first or second modes.

公开(公告)号：US20220417974A1

公开(公告)日：2022-12-29

申请号：US17902098

申请日：2022-09-02

Applicant: IDAC Holdings, Inc.

Inventor： Moon-il Lee ,  Erdem Bala ,  Janet A. Stern-Berkowitz ,  Mihaela C. Beluri ,  Alphan Sahin ,  Rui Yang

IPC: H04W72/12 ,  H04L27/26 ,  H04L5/00 ,  H04W4/70

Abstract: Systems, methods, and instrumentalities are disclosed for phase noise reference signal (PNRS) transmission, comprising receiving, at a wireless transmit receive unit (WTRU), scheduling information for a Physical Uplink Shared Channel (PUSCH) transmission, wherein the scheduling information includes an indication of a set of physical resource blocks (PRBs) and a modulation coding scheme (MCS) level, determining a density for the PNRS transmission based on at least one of: the MCS level, a frequency band for the PUSCH transmission, or a subcarrier spacing of the PUSCH transmission, and transmitting the PUSCH in the scheduled set of PRBs using the determined density of PNRS.

公开(公告)号：US11283567B2

公开(公告)日：2022-03-22

申请号：US16764258

申请日：2018-11-14

Applicant: IDAC HOLDINGS, INC.

Inventor： Moon-il Lee ,  Alphan Sahin ,  Erdem Bala ,  Afshin Haghighat ,  Frank La Sita ,  Janet A. Stern-Berkowitz

IPC: H04L5/00

Abstract: A system, method, and device for ensuring a number of Phase Tracking Reference Signal(s) (PT-RSs) are the same for multiple slots. A wireless transmit/receive unit (WTRU) may receive control information including a number of scheduled resource blocks (RBs) then determine a PT-RS density based on the number of scheduled RBs. The WTRU may determine a RB offset value for the WTRU based on a WTRU-ID modulo the maximum RB offset value, where the maximum value for the RB offset value may be based on at least one of the number of the scheduled RBs and the PT-RS density. The WTRU may then transmit or receive a signal with PT-RS based on the RB offset value.

公开(公告)号：US11265824B2

公开(公告)日：2022-03-01

申请号：US16097723

申请日：2017-05-11

Applicant: IDAC Holdings, Inc.

Inventor： Erdem Bala ,  Janet A. Stern-Berkowitz ,  Afshin Haghighat ,  Moon-il Lee ,  Mihaela C. Beluri ,  Ananth Kini ,  Rui Yang ,  Alphan Sahin

IPC: H04W52/36 ,  H04L5/00 ,  H04W52/14 ,  H04W52/34 ,  H04W72/04

Abstract: Systems, methods, and instrumentalities are disclosed for non-orthogonal multiple access (NOMA), frequency hopping, and power control. NOMA may be applied to asynchronous and/or grant-free transmissions. Transmissions from multiple WTRUs may be performed using the same resources, and may comprise information for correctly identifying and decoding the transmissions. The transmissions may comprise a built-in deterministic sequence to support timing acquisition at a receiver. The transmissions may be distinguished based on respective transmit power used for the transmissions. Such transmit power may be dynamically controlled by applying a randomly selected power offset. The power control may be performed autonomously by a WTRU.

公开(公告)号：US20190150132A1

公开(公告)日：2019-05-16

申请号：US16300336

申请日：2017-05-11

Applicant: IDAC HOLDINGS, INC.

Inventor： Erdem Bala ,  Afshin Haghighat ,  Mihaela C. Beluri ,  Rui Yang ,  Ananth Kini ,  Janet A. Stern-Berkowitz ,  Alphan Sahin

IPC: H04W72/04 ,  H04L27/00 ,  H04W72/08

Abstract: A wireless transmit/receive unit (WTRU), using mixed numerologies, may, in a first codeword, map a first set of bits to a higher order modulation scheme and a second set of bits to a lower order scheme, and transmit the first codeword. The WTRU may determine that data of the first codeword is to be re-transmitted on a second codeword, containing the same number of bits as the first codeword. In the second codeword, the WTRU may map a first set of bits to the lower order scheme and a second set of bits to the higher order scheme. The first set of bits of the second codeword may contain the same number of bits as the second set of bits of the first codeword and may contain at least a subset of data in the first set of bits of the first codeword. The WTRU may transmit the second codeword.

公开(公告)号：US20180198662A1

公开(公告)日：2018-07-12

申请号：US15742329

申请日：2016-07-07

Applicant: IDAC HOLDINGS, INC.

Inventor： Alphan Sahin ,  Rui Yang ,  Fengjun Xi ,  Oghenekome Oteri ,  Hanqing Lou ,  Robert L. Olesen

IPC: H04L27/26 ,  H04L25/03 ,  H04L25/02

CPC classification number: H04L27/2636 ,  H04J11/0033 ,  H04L25/0216 ,  H04L25/03834 ,  H04L27/2605

Abstract: Precoding, a symbol permutation operation, or pulse shaping may be used to suppress or cancel a tail or head of a symbol. Precoding may include utilization of a suppression vector. A unique word (UW) may be added to the suppression vector before spreading. The symbol and values of the suppression vector may be spread by a spreading function(s) and may be shaped prior to transmission.

公开(公告)号：US11689307B2

公开(公告)日：2023-06-27

申请号：US17276076

申请日：2019-09-13

Applicant: IDAC Holdings, Inc.

Inventor： Alphan Sahin ,  Rui Yang

IPC: H04J13/00 ,  H04L1/00

CPC classification number: H04J13/0011 ,  H04L1/0042 ,  H04L1/0057

Abstract: Methods, apparatuses and systems directed to complementary sequence (CS) encoding and encoded CS transmissions are provided. Among the apparatuses is apparatus having a transmitter that may be configured to (i) transmit an encoded CS via a block based, e.g., orthogonal frequency division multiplexing (OFDM), waveform, and/or (ii) generate the encoded CS using a plurality of seed sequences and a plurality of information items, wherein: of the elements of the encoded CS encodes a first set of the plurality of information items; (b) phases of the encoded-CS elements encode a second set of the plurality of information items); and (c) the encoded-CS elements define a number of zeros that encode a third set of the plurality of information items. The encoded-CS elements may define respective numbers of zeros that collectively form the number of zeros that encode the third information-item set.

公开(公告)号：US11477813B2

公开(公告)日：2022-10-18

申请号：US16337774

申请日：2017-09-28

Applicant: IDAC Holdings, Inc.

Inventor： Moon-il Lee ,  Erdem Bala ,  Janet A. Stern-Berkowitz ,  Mihaela C. Beluri ,  Alphan Sahin ,  Rui Yang

IPC: H04W72/12 ,  H04L5/00 ,  H04L27/26 ,  H04W4/70

Abstract: Systems, methods, and instrumentalities are disclosed for phase noise reference signal (PNRS) transmission, comprising receiving, at a wireless transmit receive unit (WTRU), scheduling information for a Physical Uplink Shared Channel (PUSCH) transmission, wherein the scheduling information includes an indication of a set of physical resource blocks (PRBs) and a modulation coding scheme (MCS) level, determining a density for the PNRS transmission based on at least one of: the MCS level, a frequency band for the PUSCH transmission, or a subcarrier spacing of the PUSCH transmission, and transmitting the PUSCH in the scheduled set of PRBs using the determined density of PNRS.

公开(公告)号：US11303493B2

公开(公告)日：2022-04-12

申请号：US16496246

申请日：2018-03-22

Applicant: IDAC HOLDINGS, INC.

Inventor： Erdem Bala ,  Moon-il Lee ,  Shahrokh Nayeb Nazar ,  Afshin Haghighat ,  Alphan Sahin ,  Rui Yang ,  Frank La Sita

IPC: H04B7/06 ,  H04L1/06 ,  H04L5/00 ,  H04L27/26 ,  H04B7/0404 ,  H04B7/0456

Abstract: Methods and apparatuses are described herein for transmit diversity in an uplink control channel. A wireless transmit/receive unit (WTRU) may perform a Discrete Fourier Transform (DFT) precoding operation on a data symbol sequence segment to generate a DFT precoded segment. The WTRU may then perform a Space Frequency Block Coding (SFBC) operation on the DFT precoded segment to generate a SFBC processed segment. The data symbols of the DFT precoded segment may be reordered in the SFBC processed segment. The WTRU may map the DFT precoded segment to a first set of contiguous subcarriers and the SFBC processed segment to a second set of contiguous subcarriers. The WTRU may then transmit a first DFT spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) signal on the first set of contiguous subcarriers via a first antenna port and a second DFT-s-OFDM signal on the second set of contiguous subcarriers via a second antenna port.

公开(公告)号：US20210092720A1

公开(公告)日：2021-03-25

申请号：US17114477

申请日：2020-12-07

Applicant: IDAC Holdings, Inc.

Inventor： Afshin Haghighat ,  Oghenekome Oteri ,  Alphan Sahin ,  Shahrokh Nayeb Nazar ,  Moon IL Lee ,  Prasanna Herath

IPC: H04W72/04 ,  H04B7/0456 ,  H04B7/06

Abstract: Methods, apparatuses, systems, devices, and computer program products directed to phase-continuous frequency selective precoding are provided. Included among these classes are methods for use in connection with dynamic precoding resource block group (PRG) configuration and with codebook based transmission configuration. A representative of such methods may include any of receiving signaling indicating transmit precoding information; determining a candidate PRG size using any of the transmit precoding information, a rule for determining a PRG size and configured PRG sizes; and configuring or reconfiguring a wireless transmit/receive device in accordance with the candidate PRG size. Another of the representative methods may include reporting a transmission coherence capability of a wireless transmit/receive unit; receiving a codebook subset restriction (CBSR) commensurate with the transmission coherence capability; determining a transmit precoding matrix indices (TPMI) size based on the CBSR; receiving a TPMI; and detecting or decoding the TPMI based on the determined TPMI size.