公开(公告)号：US12088387B2

公开(公告)日：2024-09-10

申请号：US17428488

申请日：2020-02-14

Applicant: Apple Inc.

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

IPC: H04B7/06 ,  H04W16/28

CPC classification number: H04B7/0695 ,  H04W16/28

Abstract: Disclosed herein are system, method, and computer program product embodiments for performing beam failure recovery. An embodiment operates by detecting a beam failure on a secondary cell (SCell). The embodiment transmits, to a base station, a beam failure recovery request (BFRQ) for the SCell over a primary cell (PCell). The embodiment transmits the BFRQ for the SCell over a Primary Uplink Control Chanel (PUCCH), a Physical Random Access Channel (PRACH), or a Primary Uplink Shared Channel (PUSCH) over the PCell. The embodiment can transmit a schedule request (SR) to allocate a PUSCH over the PCell. The embodiment receives, from the base station, a response for the BFRQ for the SCell over the SCell or the PCell. The embodiment then uses a new beam for the SCell based on the response for the BFRQ for the SCell.

公开(公告)号：US20240121041A1

公开(公告)日：2024-04-11

申请号：US18212635

申请日：2023-06-21

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Alexei Vladimirovich Davydov ,  Seung Hee Han ,  Jeongho Jeon ,  Sameer Pawar ,  Avik Sengupta ,  Guotong Wang ,  Yushu Zhang

IPC: H04L5/00 ,  H04L1/1812

CPC classification number: H04L5/0048 ,  H04L1/1812 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0094

Abstract: A user equipment (UE) can include processing circuitry configured to decode control information of a physical down-link control channel (PDCCH) received via a resource within a control resource set (CORESET) occupying a subset of a plurality of OFDM symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a PDSCII. The DM-RS can be detected within the slot, the DM-RS starting at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data scheduled by the PDCCH and received via the PDSCH can be decoded, where the decoding is based on the detected DM-RS.

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：US11736253B2

公开(公告)日：2023-08-22

申请号：US17689229

申请日：2022-03-08

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Alexei Vladimirovich Davydov ,  Seung Hee Han ,  Jeongho Jeon ,  Sameer Pawar ,  Avik Sengupta ,  Guotong Wang ,  Yushu Zhang

IPC: H04L5/00 ,  H04L1/1812

CPC classification number: H04L5/0048 ,  H04L1/1812 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0094

Abstract: A user equipment (UE) can include processing circuitry configured to decode control information of a physical down-link control channel (PDCCH) received via a resource within a control resource set (CORESET) occupying a subset of a plurality of OFDM symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a PDSCH. The DM-RS can be detected within the slot, the DM-RS starting at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data scheduled by the PDCCH and received via the PDSCH can be decoded, where the decoding is based on the detected DM-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：US11659625B2

公开(公告)日：2023-05-23

申请号：US17238933

申请日：2021-04-23

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Yushu Zhang ,  Guotong Wang

IPC: H04W88/06 ,  H04W72/04 ,  H04W72/0446 ,  H04L1/00 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/12

CPC classification number: H04W88/06 ,  H04L1/0026 ,  H04L1/1819 ,  H04L5/0055 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/1247

Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive control signaling to configure transmission of: a first physical uplink control channel (PUCCH) that includes first uplink control information (UCI) of a first UCI type; and a second PUCCH that includes second UCI of a second UCI type. In some cases, if the transmissions of the first PUCCH and the second PUCCH would overlap in a number of slots, the UE may, if the first and second UCI types are not of the same priority: transmit, in the overlapping slots, the PUCCH that includes the UCI type of highest priority; and refrain from transmission in the overlapping slots, and without postponement of the transmission, of the PUCCH that includes the UCI type of lowest priority.

公开(公告)号：US20220173950A1

公开(公告)日：2022-06-02

申请号：US17442502

申请日：2020-04-17

Applicant: Apple Inc.

Inventor： Avik Sengupta ,  Alexei DAVYDOV ,  Sameer Pawar ,  Guotong Wang ,  Gregory Morozov

IPC: H04L27/26 ,  H04L5/00

Abstract: Methods, systems, apparatus, and computer programs, for providing uplink control information to an access node. In one aspect, the method can include actions of determining, by a UE, a time-domain orthogonal cover code (OCC) for a PUCCH message of a UE to multiplex the PUCCH transmission with one or more PUCCH messages from one or more other UEs, and encoding, by the UE, the PUCCH message for transmission by the UE using the OCC.

公开(公告)号：US20220158766A1

公开(公告)日：2022-05-19

申请号：US17438663

申请日：2020-05-01

Applicant: Apple Inc.

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

IPC: H04L1/16 ,  H04L5/00 ,  H04L1/00

Abstract: Systems, devices, and techniques for beamforming in wireless communication systems are described. A described technique performed by a user equipment (UE) includes monitoring a downlink reference signal from a base station; transmitting, via a physical uplink shared channel (PUSCH) associated with a hybrid automatic repeat request (HARQ) process number, a beam failure recovery request (BFRQ) in response to a change in a quality of the downlink reference signal, wherein the BFRQ comprises new beam information; receiving, by the UE, a downlink control information (DCI) message to trigger a PUSCH transmission corresponding to the HARQ process number; and transmitting, by the UE after at least a predetermined number of symbols from a last symbol of a physical downlink control channel (PDCCH) reception containing the DCI message, information via a PUCCH in accordance with the new beam information. The UE can apply the new beam information to uplink and downlink channels.