公开(公告)号：US20220060361A1

公开(公告)日：2022-02-24

申请号：US17418150

申请日：2020-03-13

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Alexei Davydov ,  Gregory Morozov ,  Guotong Wang ,  Dae Won Lee ,  Gang Xiong ,  Sameer Pawar ,  Jie Zhu

IPC: H04L27/26 ,  H04L5/00 ,  H04J13/00

Abstract: Communication in a wireless network using a phase-tracking reference signal (PT-RS) for orthogonal frequency division multiplexing (OFDM) includes determining one or more PT-RS groups of adjacent subcarriers in a resource allocation for a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH), encoding data to be transmitted by the PUSCH or the PDSCH in data subcarriers within the resource allocation for the PUSCH or the PDSCH, and encoding phase-tracking reference signals within the one or more PT-RS groups of adjacent subcarriers.

公开(公告)号：US20210400700A1

公开(公告)日：2021-12-23

申请号：US17287794

申请日：2019-10-31

Applicant: Apple Inc.

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

IPC: H04W72/12 ,  H04W72/04

Abstract: An apparatus configured to be employed in a user equipment (UE) associated with a new radio (NR) communication system is disclosed. The apparatus comprises one or more processors configured to process a physical downlink shared channel (PDSCH) scheduling signal, received from a gNodeB associated therewith, wherein the PDSCH scheduling signal is configured to schedule a transmission of PDSCH. In some embodiments, the PDSCH scheduling signal comprises a transmission configuration indicator (TCI) state indicative of a channel state information reference signal (CSI-RS) resource that is triggered aperiodically. In some embodiments, the apparatus is further configured to determine a receive (Rx) beam to be utilized for the reception of the scheduled PDSCH transmission, that forms a PDSCH Rx beam, based on the indicated CSI-RS resource.

公开(公告)号：US20210377997A1

公开(公告)日：2021-12-02

申请号：US17287081

申请日：2019-10-31

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Alexei Davydov ,  Avik Sengupta ,  Sameer Pawar ,  Gregory V. Morozov ,  Yushu Zhang

IPC: H04W72/12 ,  H04L5/00 ,  H04L27/26 ,  H04J13/00

Abstract: A service device (e.g., a user equipment (UE), a new radio NB (gNB), or other network component or network management component) can process or generate a Downlink Control Information (DCI) that schedules a Physical Uplink Shared Channel (PUSCH) transmission in a PUSCH. The PUSCH transmission can be generated based on a Demodulation Reference Signal (DMRS) according to a Discrete Fourier Transform (DFT) spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform in uplink. A sequence of the DMRS can be generated based on a Gold sequence and a Pi/2 Binary Phase-Shift Keying (BPSK) modulation.

公开(公告)号：US11159217B2

公开(公告)日：2021-10-26

申请号：US16498805

申请日：2018-04-02

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Huaning Niu ,  Wook Bong Lee ,  Alexei Davydov ,  Guotong Wang

IPC: H04B7/06 ,  H04W16/28 ,  H04L5/00 ,  H04W24/10 ,  H04W72/04 ,  H04W84/04

Abstract: Systems and methods of beam reporting for multiple DL processes are described. A UE receives a beam management processes configuration that provides information about beam management reference signals for beam management procedures. The UE transmits a UE capability report that indicates beam management capabilities of the UE and, later, an indication of whether the UE intends to engage in beam refinement. The UE measures the beam management reference signals and receives a beam reporting message that indicates at least one of the beam management procedures to report. In response, the UE transmits the beam report. The beam report contains beam management reference signal measurements of the beam management procedures indicated by the beam reporting message.

公开(公告)号：US11139878B2

公开(公告)日：2021-10-05

申请号：US16643062

申请日：2018-09-10

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Yushu Zhang ,  Alexei Davydov

IPC: H04K1/10 ,  H04L27/28 ,  H04B7/06 ,  H04B7/0404 ,  H04B7/08

Abstract: Embodiments of the present disclosure describe methods and apparatuses for group based beam reporting and channel state information reference signal configuration in new radio systems.

公开(公告)号：US11122516B2

公开(公告)日：2021-09-14

申请号：US16407952

申请日：2019-05-09

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  RongZhen Yang ,  Yuan Zhu ,  Gang Xiong ,  Wenting Chang ,  Guotong Wang ,  Dae Won Lee ,  Yongjun Kwak

IPC: H04W52/14 ,  H04W52/24 ,  H04W52/32 ,  H04B7/06 ,  H04B7/0404

Abstract: Uplink Transmission Power Control (TPC) techniques configured to compensate for variations in path loss and/or interference on a plurality of uplink transmission beams.

公开(公告)号：US11102661B2

公开(公告)日：2021-08-24

申请号：US16408319

申请日：2019-05-09

Applicant: Apple Inc.

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

IPC: H04W16/28 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04L1/16

Abstract: Technology for user equipment (UE) operable to decode beam indication related information received from a New Radio (NR) base station in a physical downlink shared channel (PDSCH) is disclosed. The UE can decode a transmission configuration indication (TCI) received in a downlink control information (DCI) from the NR base station on a scheduling physical downlink control channel (PDCCH) in a scheduled bandwidth part (BWP) or a scheduled component carrier (CC). The UE can decode a scheduling offset received from the NR base station, wherein the scheduling offset is an offset time for reception of beam indication related information in a physical downlink shared channel (PDSCH). The UE can decode the beam indication related information received from the NR base station in the PDSCH on the scheduled BWP or the scheduled CC at a time period greater than or equal to the scheduling offset relative to the PDCCH transmission.

公开(公告)号：US11095482B2

公开(公告)日：2021-08-17

申请号：US16397916

申请日：2019-04-29

Applicant: Apple Inc.

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

IPC: H04L25/02 ,  H04L1/00 ,  H04L5/00 ,  H04W24/10 ,  H04W72/04 ,  H04W80/02

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for joint CSI-RS and SRS triggering. Embodiments may include DCI format(s) to support joint CSI-RS and SRS triggering, and UE QCL assumption when CSI-RS and SRS are jointly triggered.

公开(公告)号：US11064552B2

公开(公告)日：2021-07-13

申请号：US16407801

申请日：2019-05-09

Applicant: APPLE INC.

Inventor： Guotong Wang ,  Yushu Zhang ,  Alexei Davydov

IPC: H04W76/19 ,  H04W72/04 ,  H04L5/00 ,  H04W76/27 ,  H04B7/06

Abstract: An apparatus of a user equipment (UE) comprises one or more baseband processors to generate a beam failure recovery request to be transmitted to a Fifth Generation (5G) NodeB (gNB) over a physical random access channel (PRACH), to process a response from the gNB, and to generate a physical uplink control channel (PUCCH) transmission to be transmitted to the gNB using a default spatial relation comprising a same spatial filter as used for the beam failure recovery request transmission over the PRACH. A beam failure recovery request is to be transmitted to a gNB after a random access response from the gNB, wherein the beam failure recovery request is to be transmitted via Message 1 or Message 3 to the gNB, and a response is to be received from the gNB via Message 2 or Message 4.

公开(公告)号：US11051353B2

公开(公告)日：2021-06-29

申请号：US16298418

申请日：2019-03-11

Applicant: APPLE INC.

Inventor： Guotong Wang ,  Yushu Zhang ,  Alexei Davydov

IPC: H04W76/19 ,  H04W72/04 ,  H04L5/00 ,  H04W76/27 ,  H04B7/06

Abstract: An apparatus of a user equipment (UE) comprises one or more baseband processors to generate a beam failure recovery request to be transmitted to a Fifth Generation (5G) NodeB (gNB) over a physical random access channel (PRACH), to process a response from the gNB, and to generate a physical uplink control channel (PUCCH) transmission to be transmitted to the gNB using a default spatial relation comprising a same spatial filter as used for the beam failure recovery request transmission over the PRACH. A beam failure recovery request is to be transmitted to a gNB after a random access response from the gNB, wherein the beam failure recovery request is to be transmitted via Message 1 or Message 3 to the gNB, and a response is to be received from the gNB via Message 2 or Message 4.