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.

公开(公告)号：US20200351845A1

公开(公告)日：2020-11-05

申请号：US16882675

申请日：2020-05-25

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Vadim Sergeyev ,  Gregory Morozov ,  Ilya Bolotin

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04L29/08

Abstract: Dynamic transmission of non-zero power channel state information resource signals and interference measurement resources is described. Such dynamic transmission reduces or eliminates a need to buffer and store channel and interference measurements The described approach also reduces the overhead due to transmission of those resources and enables flexible time-domain channel state information requests.

公开(公告)号：US10826589B2

公开(公告)日：2020-11-03

申请号：US16408031

申请日：2019-05-09

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Victor Sergeev ,  Dmitry Dikarev

IPC: H04B7/06 ,  H04W72/04 ,  H04B7/0456 ,  H04L5/00 ,  H04W24/10

Abstract: Technology for a user equipment (UE) operable for channel state information (CSI) reporting for selected bandwidth parts is disclosed. The UE can be configured to decode CSI reporting parameters for one or more bandwidth parts (BWPs). The UE can be configured to calculate CSI for the one or more BWPs based on measurements from the one or more BWPs and the CSI reporting parameters for the one or more BWPs. The UE can be configured to generate one or more CSI reports for the one or more BWPs based on measurements from the one or more BWPs and the CSI reporting parameters for the one or more BWPs. The UE can be configured to encode the one or more CSI reports using the one or more BWPs.