公开(公告)号：US12063173B2

公开(公告)日：2024-08-13

申请号：US17423284

申请日：2020-01-22

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Alexei Davydov ,  Yushu Zhang ,  Hong He ,  Daewon Lee ,  Jie Zhu

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/0453

CPC classification number: H04L5/0048 ,  H04L27/2636 ,  H04W72/0453

Abstract: Some embodiments of this disclosure include apparatuses and methods for physical downlink control channel design for a discrete Fourier Transform-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) waveform. The apparatuses and methods can include at least operating a base station (BS) to generate one or more physical downlink control channels (PDCCH) in a time division multiplexing (TDM) manner using a Discrete Fourier Transform-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) waveform, generate a demodulation reference signal (DMRS) which is multiplexed in the TDM manner with the one or more PDCCH, and transmit the one or more PDCCH and the DMRS to a user equipment (UE).

公开(公告)号：US11962531B2

公开(公告)日：2024-04-16

申请号：US17434443

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Yongjun Kwak ,  Alexei Davydov ,  Dae Won Lee

IPC: H04L5/00 ,  H04L27/26 ,  H04B7/06 ,  H04W16/14

CPC classification number: H04L5/005 ,  H04L5/0051 ,  H04L5/0094 ,  H04L27/2613 ,  H04B7/0626 ,  H04W16/14

Abstract: Systems, methods, and circuitries are provided for configuring and indicating channel state information resource signals (CSI-RS) using discovery reference signal (DRS) resources. An example method includes determining discovery reference signal (DRS) resources for use in carrying channel state information reference signals (CSI-RS); generating CSI-RS configuration information that defines at least one CSI-RS using the DRS resources; and signaling the CSI-RS configuration information to a user equipment (UE) device.

公开(公告)号：US11799533B2

公开(公告)日：2023-10-24

申请号：US16483568

申请日：2018-07-25

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Gang Xiong ,  Guotong Wang ,  Alexei Davydov ,  Paul C Wei

IPC: H04B7/0456 ,  H04B7/06 ,  H04W76/27 ,  H04B15/06 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04W8/24 ,  H04W88/06 ,  H04W88/10 ,  H04W72/23

CPC classification number: H04B7/0628 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0639 ,  H04B15/06 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2607 ,  H04L27/2636 ,  H04W8/24 ,  H04W72/23 ,  H04W76/27 ,  H04W88/06 ,  H04W88/10 ,  H04L5/0048 ,  H04L27/2602

Abstract: The present disclosure provides apparatuses, systems, methods, and machine readable storage medium for physical uplink shared channel (PUSCH) transmission between a user equipment (UE) and a base station, based on a robust codebook. In an embodiment, a UE, including circuitry operable to: report a UE capability of the UE to a base station, wherein the UE capability comprises a number of phase tracking reference signal (PT-RS) antenna ports (NPT-RS) supported by the UE; decode control signaling received from the base station, wherein the control signaling comprises at least one parameter to indicate a precoder selected from a codebook based on at least the NPT-RS; and perform physical uplink shared channel (PUSCH) transmission according to the indicated precoder; wherein the codebook is predefined or configured based on different numbers of PT-RS antenna ports and different waveforms, in the UE and the base station.

公开(公告)号：US20230300946A1

公开(公告)日：2023-09-21

申请号：US18306336

申请日：2023-04-25

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Gang Xiong ,  Guotong Wang ,  Alexei Davydov

IPC: H04W88/06 ,  H04W76/27 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04W56/00 ,  H04W80/02 ,  H04W80/08

CPC classification number: H04W88/06 ,  H04W76/27 ,  H04B7/0626 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0025 ,  H04L5/005 ,  H04L5/0092 ,  H04W56/001 ,  H04W80/02 ,  H04W80/08

Abstract: Provided herein are method and apparatus for configuration of a Reference Signal (RS) and a Tracking Reference Signal (TRS). An embodiment provides a method for a user equipment (UE), including determining a number of slots for a Tracking Reference Signal (TRS), wherein the number of slots is based on a subcarrier spacing of a bandwidth part (BWP) in a current component carrier for the UE; and receiving TRS based on the number of slots and a quasi co-location (QCL) relationship of the TRS, wherein the QCL relationship indicates that the TRS is Quasi-Co-Located (QCLed) with a Synchronization Signal (SS) block or a Channel State Information Reference Signal (CSI-RS).

公开(公告)号：US11729782B2

公开(公告)日：2023-08-15

申请号：US16419367

申请日：2019-05-22

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Alexei Davydov ,  Guotong Wang ,  Gang Xiong

IPC: H04W72/23 ,  H04L5/00 ,  H04W52/08 ,  H04W52/24 ,  H04W72/0446

CPC classification number: H04W72/23 ,  H04L5/0051 ,  H04W52/08 ,  H04W52/242 ,  H04W72/0446

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for uplink beam management and power control in wireless communications systems. Disclosed embodiments include beam management and power control enhancements for Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS), and Physical Uplink Control Channel (PUSCH) transmissions. Other embodiments may be described and/or claimed.

公开(公告)号：US11696275B2

公开(公告)日：2023-07-04

申请号：US17269307

申请日：2019-09-24

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Yushu Zhang ,  Gang Xiong ,  Alexei Davydov

IPC: H04W72/12 ,  H04W76/15 ,  H04W76/18 ,  H04B7/06

CPC classification number: H04W72/12 ,  H04B7/0695 ,  H04W76/15 ,  H04W76/18

Abstract: Techniques discussed herein can facilitate determination of spatial (and/or beam) assumption(s) for PDSCH (Physical Downlink Shared Channel) transmitted after a BFR (Beam Failure Recovery) request but before TCI (Transmission Configuration Information) reconfiguration. One example embodiment can be an apparatus configured to: generate a BFR request that indicates a new candidate beam; process a CORESET (Control Resource Set)-BFR of a set of configured CORESETs, wherein the CORESET-BFR comprises a response to the BFR request; determine a spatial assumption for a first PDSCH based on the BFR request, wherein the first PDSCH is scheduled by a first CORESET of the set of configured CORESETs, wherein the first CORESET is different than the CORESET-BFR, wherein the first PDSCH is scheduled before a TCI state is one of reconfigured, reactivated, or re-indicated; and process the first PDSCH based on the determined spatial assumption for the first PDSCH.

公开(公告)号：US11664825B2

公开(公告)日：2023-05-30

申请号：US17562108

申请日：2021-12-27

Applicant: Apple Inc.

Inventor： Dmitry Dikarev ,  Grigory Ermolaev ,  Ajit Nimbalker ,  Alexei Davydov ,  Ashwin Chandrasekaran ,  Sathishkumar Chellakuttigounder Kulandaivel

IPC: H03M13/00 ,  H03M13/13 ,  H03M13/09 ,  H03M13/27

CPC classification number: H03M13/13 ,  H03M13/09 ,  H03M13/2703 ,  H03M13/2789 ,  H03M13/6356

Abstract: Techniques discussed herein facilitate polar coding and decoding for NR (New Radio) systems between UE(s) (User Equipment(s)) and/or gNB(s) (next generation Node B(s)) based on code block segmentation. One example embodiment employable at a UE comprises processing circuitry configured to determine one or more thresholds for code block segmentation, where the one or more thresholds for code block segmentation includes one or more of a payload threshold (Kseg) or a code rate threshold (Rseg); determine to perform code block segmentation based on the one or more thresholds and at least one of a current payload (K) of an information block or a current code rate (R) for the information block; segment the information block into a plurality of segments; and encode each segment of the plurality of segments via a polar encoder with a code size (N).

公开(公告)号：US20230117785A1

公开(公告)日：2023-04-20

申请号：US17894410

申请日：2022-08-24

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Gang Xiong ,  Hong He ,  Yongjun Kwak ,  Alexei Davydov ,  Hwan-Joon Kwon ,  Dae Won Lee

IPC: H04W88/06 ,  H04L5/00 ,  H04W24/08 ,  H04W72/0446 ,  H04W80/08 ,  H04W72/23

Abstract: A user equipment (UE) may include one or more processors that are configured to cause UE capability information to be communicated to a radio access network (RAN) node, regarding a maximum number of blind decode attempts (BDAs) supported by the UE. The one or more processors are configured to determine, based on the maximum BDAs, shortened channel control elements (sCCEs) to be used, by the RAN node, to transmit shortened downlink control information (sDCI) via a shortened physical downlink control channel (sPDCCH) and obtain sDCI by monitoring the sPDCCH in accordance with the determined sCCEs.

公开(公告)号：US11575554B2

公开(公告)日：2023-02-07

申请号：US16055964

申请日：2018-08-06

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gang Xiong ,  Debdeep Chatterjee ,  Hong He ,  Gregory Morozov ,  Sameer Pawar ,  Yushu Zhang ,  Victor Sergeev ,  Dmitry Dikarev ,  Daewon Lee

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04B7/06 ,  H04W76/11 ,  H04W76/27 ,  H04L1/00 ,  H04W88/06

Abstract: A scrambling sequence generation method is disclosed for reference signals, data, and downlink and uplink control channels. The scrambling sequence generation method determines an initial seed value used to calculate the scrambling sequence. The initial seed value is based on different parameters relating to the to be transmitted signals, and some of these parameters are explicitly defined for New Radio.

公开(公告)号：US11515917B2

公开(公告)日：2022-11-29

申请号：US17417302

申请日：2020-01-18

Applicant: Apple Inc.

Inventor： Victor Sergeev ,  Alexei Davydov ,  Bishwarup Mondal ,  Gregory Morozov ,  Dmitry Dikarev

IPC: H04B7/06 ,  H04B7/0456

Abstract: An approach is described that includes receiving a CSI report, where the CSI report includes a channel quality indicator (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI). The approach further includes constructing a precoding matrix based on a linear combination of a plurality of mutually orthogonal digital Fourier transformation (DFT) spatial beams, and determining a number of bits for the PMI of the precoding matrix. The approach also includes determining a space frequency matrix based, at least in part, on the number of bits for the PMI and the precoding matrix, and compressing the space frequency matrix. Finally, the approach includes determining a compressed PMI based, at least in part, on the space frequency matrix.