公开(公告)号：US12004223B2

公开(公告)日：2024-06-04

申请号：US17428002

申请日：2020-02-05

Applicant: Apple Inc.

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

IPC: H04W74/08 ,  H04W74/0833

CPC classification number: H04W74/0833

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for beam failure recovery (BFR). For example, some embodiments are directed to a user equipment (UE). The UE includes radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to receive, using the radio front end circuitry, one or more reference signals. The processor circuitry can be further configured to, in response to determining that a beam failure occurred for the one or more reference signals, determine a contention-free (CF) physical random access channel (PRACH) resource for a beam failure recovery (BFR) request. The processor circuitry can be further configured to transmit, using the radio front circuitry, the BFR request using the determined CF PRACH resource.

公开(公告)号：US11901999B2

公开(公告)日：2024-02-13

申请号：US17437809

申请日：2020-05-29

Applicant: Apple Inc.

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

IPC: H04L5/00 ,  H04W52/32 ,  H04W52/28 ,  H04B7/06 ,  H04L27/26

CPC classification number: H04B7/0695 ,  H04L5/0051 ,  H04L5/0055 ,  H04W52/281 ,  H04W52/325 ,  H04L27/2602

Abstract: Apparatuses, systems, and methods for multiplexing of PUCCH for beam failure recovery and other signals. A UE may determine a transmission dropping rule and a transmission power scaling rule for a PUCCH which is dedicatedly configured for secondary BFR transmission, such as a PUCCH-BFR, when it is multiplexed with BFR multiplexed with at least one other signal. The PUCCH-BFR and the at least one other signal may be multiplexed in a CC or in multiple CCs. The UE may determine a transmission dropping rule, e.g., so that UE can transmit an uplink signals with higher priority and drop the other uplink signal with lower priority to avoid beam collisions. The UE may determine a transmission power scaling rule, e.g., so the UE may scale transmission power within a CC and/or across CCs. The UE may multiplex the PUCCH-BFR with the at least one other signal according to the rules.

公开(公告)号：US11824559B2

公开(公告)日：2023-11-21

申请号：US18094068

申请日：2023-01-06

Applicant: Apple Inc.

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

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

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

Abstract: Techniques discussed herein can facilitate polar coding and decoding for NR (New Radio) systems. Various embodiments discussed herein can employ polar coding and/or decoding at UE(s) (User Equipment(s)) and/or gNB(s) (next generation Node B(s)). One example embodiment employable at a UE can comprise processing circuitry configured to determine one or more thresholds for code block segmentation, wherein the one or more thresholds for code block segmentation comprise 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：US11804990B2

公开(公告)日：2023-10-31

申请号：US17582420

申请日：2022-01-24

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04L25/02 ,  H04L5/00 ,  H04W72/0446 ,  H04W80/08 ,  H04W72/23

CPC classification number: H04L25/0226 ,  H04L5/0051 ,  H04L5/0092 ,  H04W72/0446 ,  H04W72/23 ,  H04W80/08

Abstract: Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a message carrying an indicator to indicate a selection of a Sounding Reference Signal (SRS) resource set, wherein the message is received from a gNB. The second circuitry may be operable to generate an SRS transmission, based on the indicator. The apparatus may comprise an interface to send the SRS transmission to a transmission circuitry.

公开(公告)号：US11764869B2

公开(公告)日：2023-09-19

申请号：US17447463

申请日：2021-09-13

Applicant: APPLE INC.

Inventor： Dae Won Lee ,  Seunghee Han ,  Gregory V. Morozov ,  Alexei Davydov ,  Hong He

IPC: H04B7/212 ,  H04B7/26 ,  H04L27/26 ,  H04W56/00

CPC classification number: H04B7/2656 ,  H04B7/2681 ,  H04L27/2666 ,  H04W56/0015

Abstract: Systems and methods for synchronizing communications between a User Equipment (UE) and Base Station (BS) using a synchronization signal structure. The synchronization signal structure can include a sequence of Synchronization Signals (SS) including repetitions of a synchronization signal burst set. The synchronization signal burst set can include a plurality of synchronization signal bursts. The synchronization signal bursts can include a plurality of synchronization signal blocks, wherein the synchronization signal blocks can include a plurality of Synchronization Signals (SS).

公开(公告)号：US11672048B2

公开(公告)日：2023-06-06

申请号：US17895163

申请日：2022-08-25

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04W88/06 ,  H04W76/27 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04W56/00 ,  H04W80/02 ,  H04W80/08

CPC classification number: H04W88/06 ,  H04B7/0626 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/005 ,  H04L5/0025 ,  H04L5/0092 ,  H04W56/001 ,  H04W76/27 ,  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 an apparatus for a user equipment (UE), comprising baseband processing circuitry configured to receive downlink control information (DCI) that indicates 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 receive TRS based on the number of slots indicated in the DCI, a frequency density of the TRS based on a bandwidth for the TRS, 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：US11601174B2

公开(公告)日：2023-03-07

申请号：US17313452

申请日：2021-05-06

Applicant: Apple Inc.

Inventor： Alexei Davydov

IPC: H04W8/08 ,  H04B7/06 ,  H04L5/00 ,  H04W16/28 ,  H04W64/00 ,  H04W72/04

Abstract: Techniques for employing QCL (Quasi Co-Location) signaling for beamforming management are discussed. One example embodiment can comprise a baseband processor of a User Equipment (UE). The baseband processor comprises one or more processors to make a determination whether a first set of RS (Reference Signal) APs (Antenna Ports) are QCL-ed (Quasi Co-Located) with a second set of RS APs with respect to one or more large-scale channel properties and to select a set of receiving parameters for the second set of RS APs based on the one or more spatial receiver parameters. The one or more large-scale channel properties comprise one or more spatial receiver parameters. The first set of RS APs are distinct from the second set of RS APs.

公开(公告)号：US11558796B2

公开(公告)日：2023-01-17

申请号：US16865796

申请日：2020-05-04

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Seunghee Han ,  Yuan Zhu ,  Xiaogang Chen ,  Alexander Maltsev ,  Gregory Morozov

IPC: H04W36/14 ,  H04L1/00 ,  H04L61/5007 ,  H04W12/02 ,  H04W76/14 ,  H04W76/11 ,  H04W76/10 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/06 ,  H04J11/00 ,  H04L5/00 ,  H04L12/46 ,  H04L9/40 ,  H04W24/10 ,  H04W28/02 ,  H04W36/00 ,  H04W36/22 ,  H04W48/08 ,  H04W48/16 ,  H04W52/02 ,  H04W56/00 ,  H04W68/00 ,  H04W72/00 ,  H04W72/04 ,  H04W88/08 ,  H04W88/06 ,  H04W8/08 ,  H04W84/12 ,  H04W88/16

Abstract: Various embodiments are generally directed to improved channel quality information feedback techniques. In one embodiment, for example, an evolved node B (eNB) may comprise a processor circuit, a communication component for execution by the processor circuit to receive a channel quality index for a physical downlink shared channel (PDSCH), the channel quality index associated with a defined reference resource, and a selection component for execution by the processor circuit to select a modulation and coding scheme (MCS) for transmission over the PDSCH of user equipment (UE) data in one or more resource blocks, the selection component to compensate for a difference between a cell-specific reference signal (CRS) overhead of the defined reference resource and a CRS overhead of the one or more resource blocks when selecting the MCS. Other embodiments are described and claimed.

公开(公告)号：US11483842B2

公开(公告)日：2022-10-25

申请号：US16067929

申请日：2016-12-23

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

IPC: H04W72/08 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0417

Abstract: Techniques for measuring CSI (Channel State Information) based on beamformed CSI-RS having reduced overhead are discussed. One example embodiment configured to be employed in a UE (User Equipment) comprises a memory; and one or more processors configured to: process higher layer signaling indicating one or more CSI-RS resources associated with a plurality of REs (Resource Elements) comprising a RE for each CSI-RS resource for each of one or more CSI-RS APs (Antenna Ports) in each of a plurality of continuous PRBs (physical resource blocks); process additional higher layer signaling comprising one or more CSI-RS parameters that indicate a subset of the plurality of REs associated with a beamformed CSI-RS transmission; decode one or more CSI-RSs from the indicated subset; and measure one or more CSI parameters based on the decoded one or more CSI-RSs.

公开(公告)号：US11375475B2

公开(公告)日：2022-06-28

申请号：US16632416

申请日：2018-07-26

Applicant: Apple Inc.

Inventor： Dae Won Lee ,  Seunghee Han ,  Gregory Vladimirovich Morozov ,  Alexei Davydov ,  Yongjun Kwak

IPC: H04W72/00 ,  H04J11/00 ,  H04L1/00 ,  H04L1/16 ,  H04W56/00 ,  H04W72/04

Abstract: A user equipment (UE) can include processing circuitry configured to decode physical broadcast channel (PBCH) information received from a base station (BS). The decoded PBCH information includes a scrambled PBCH payload and an unscrambled bit sequence. A scrambling sequence is generated based on time information signaling within the unscrambled bit sequence. The scrambled PBCH payload is de-scrambled using the scrambling sequence, to obtain master information block (MIB) information. System information block (SIB) information is decoded based on the MIB information. The decoded PBCH information includes cyclic redundancy check (CRC) information. The scrambled PBCH payload and the unscrambled bit sequence can be verified based on the CRC information. The time information signaling includes one or more bits of a system frame number (SFN).