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：US11071172B2

公开(公告)日：2021-07-20

申请号：US16349251

申请日：2017-12-29

Applicant: APPLE INC.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W88/06 ,  H04L1/16 ,  H04L27/26 ,  H04W80/02 ,  H04W80/08 ,  H04W52/02

Abstract: Technology for a user equipment (UE) configured for bandwidth adaptation (BWA) is disclosed. The UE can decode resource allocation information for a first radio frequency (RF) bandwidth including a primary subband available to the UE for data communication. Th 5 e UE can decode resource allocation information for a second RF bandwidth, wherein the second RF bandwidth comprises the first RF bandwidth and at least one secondary subband available to the UE for data communication. The UE can encode data for transmission to a next generation NodeB (gNB) using resources allocated for the second RF bandwidth in the primary subband and the secondary subband. The UE 10 can have a memory interface configured to send to a memory the resource allocation information for the first RF bandwidth and the second RF bandwidth.

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.

公开(公告)号：US11025310B2

公开(公告)日：2021-06-01

申请号：US16476537

申请日：2017-12-27

Applicant: APPLE INC.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev ,  Wook Bong Lee

IPC: H04B7/0417 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00 ,  H04W88/02

Abstract: Technology for a user equipment (UE) operable to assist a Next Generation NodeB (gNB) for beamforming is disclosed. The UE can determine a covariance matrix for a channel between the UE and the gNB. The UE can quantize the covariance matrix to obtain a quantized covariance matrix. The quantized covariance matrix can include M best diagonal entries that are selected from the covariance matrix, wherein M is an integer. The UE can encode the quantized covariance matrix as feedback for transmission to the gNB.

公开(公告)号：US11012281B2

公开(公告)日：2021-05-18

申请号：US16815933

申请日：2020-03-11

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Hyejung Jung

IPC: H04L27/26 ,  H04B7/024 ,  H04J11/00 ,  H04W76/27 ,  H04W48/12 ,  H04W72/04 ,  H04L5/00 ,  H04W56/00

Abstract: Devices and methods of determining offsets for different eNBs in a dynamic switched CoMP network are generally described. A UE may receive, in an RRCConnectionReconfiguration message, DL parameter sets associated with different eNBs and having reference signal information for a PSS, SSS and DRS. The UE may receive reference signals based on the DL set associated with the eNB and determine a timing/frequency offset based on the reference signals. The offsets may be used to decode a dynamically switched PDSCH indicated by a PDCCH. The DL sets may indicate which PDCCH to detect or the PDCCH from the same cNB may be used and the PDSCH determined from a DCI in the PDCCH. A UL DCI may indicate which of UL parameter sets to use. The UL sets may indicate a reference signal to determine path loss and a timing advance value.

公开(公告)号：US10972238B2

公开(公告)日：2021-04-06

申请号：US16465994

申请日：2018-06-11

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Alexei Davydov ,  Gang Xiong ,  Wook Bong Lee ,  Guotong Wang

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04

Abstract: Technology for a next generation node B (gNB), operable to use phase tracking reference signals (PT-RS) is disclosed. The gNB can identify a modulation and coding 5 scheme (MCS) for the UE for a bandwidth part (BWP) with a subcarrier spacing (SCS). The gNB can select a time density of the PT-RS based on the MCS. The gNB can select a frequency density of the PT-RS based on an allocated bandwidth in the BWP. The gNB can encode the time density and the frequency density, for the PT-RS for transmission to the UE in higher layer signaling.

公开(公告)号：US10917215B2

公开(公告)日：2021-02-09

申请号：US15941504

申请日：2018-03-30

Applicant: APPLE INC.

Inventor： Seunghee Han ,  Yuan Zhu ,  Xiaogang Chen ,  Alexei Davydov ,  Jong-Kae Fwu

IPC: H04L5/00 ,  H04L27/26

Abstract: Methods, systems, and devices for transmission and reception of SPS communications are disclosed herein. User equipment (UE) is configured to receive, in a first subframe, a physical downlink control channel or enhanced physical downlink control channel (PDCCH/EPDCCH) corresponding to semi-persistent scheduling (SPS) activation. The PDCCH/EPDCCH conveys a value of nSCID. The UE configures, based on the SPS activation, a downlink (DL) assignment in a second subframe for receiving an SPS physical downlink shared channel (PDSCH) without a corresponding PDCCH/EPDCCH. The UE determines a reference signal sequence corresponding to the SPS PDSCH using nSCID derived from the PDCCH/EPDCCH corresponding to the associated SPS activation. The UE receives the SPS PDSCH in a second subframe. The UE processes the SPS PDSCH based on the reference signal sequence for the SPS PDSCH in the second subframe using the nSCID derived from the PDCCH/EPDCCH corresponding to the associated SPS activation. The UE is configured for transmission mode 10 (TM10).

公开(公告)号：US20200351927A1

公开(公告)日：2020-11-05

申请号：US16933700

申请日：2020-07-20

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Sameer Pawar

IPC: H04W72/12 ,  H04B7/0413 ,  H04L1/00 ,  H04L5/00

Abstract: Embodiments of a User Equipment (UE) and methods of communication are generally described herein. If a higher layer parameter altMCS-Table is configured, and a physical downlink shared channel (PDSCH) is assigned by a downlink control information (DCI) format 1, 1B, 1D, 2, 2A, 2B, 2C, or 2D, the UE may, for some subframe/frame configurations, determine a number of physical resource blocks (PRBs) for the transport block as a maximum of: 1; and a floor function applied to a product of a total number of allocated PRBs, a parameter dependent on a special subframe configuration, and a scaling parameter. For other subframe/frame configurations, the UE may determine the number of PRBs for the transport block as a maximum of: 1; and the floor function applied to a product of the total number of allocated PRBs and the scaling parameter.