公开(公告)号：US20200252157A1

公开(公告)日：2020-08-06

申请号：US16779539

申请日：2020-01-31

Applicant: Apple Inc.

Inventor： Alexei Davydov

IPC: H04L1/00 ,  H04L1/18 ,  H04L5/00

Abstract: Methods and apparatuses for communicating in a cellular communications network, including provision of a user equipment comprising processing circuitry to: replace one or more transmission parameters from which a further transmission parameter may be determined with one or more corresponding virtual transmission parameters to provide one or more replacement transmission parameters from which a modified further transmission parameter may be determined; determine the modified further transmission parameter based on the one or more replacement transmission parameters; and transmit a signal using the modified further transmission parameter.

公开(公告)号：US20200213174A1

公开(公告)日：2020-07-02

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

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：US12206620B2

公开(公告)日：2025-01-21

申请号：US18473825

申请日：2023-09-25

Applicant: Apple Inc.

Inventor： Sameer Pawar ,  Alexei Davydov

IPC: H04L5/00 ,  H04W72/21 ,  H04W72/23

Abstract: Described is an apparatus of an Evolved Node-B (eNB). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to determine a first Sounding Reference Signal (SRS) sequence and a second SRS sequence. The second circuitry may be operable to process a first Uplink (UL) transmission from the first UE incorporating the first SRS sequence over a first set of subcarrier frequencies. The second circuitry may also be operable to process a second UL transmission from the second UE incorporating the second SRS sequence over a second set of subcarrier frequencies. The second SRS sequence may comprise at least a first block that overlaps the first set of subcarrier frequencies and a second block that does not overlap the first set of subcarrier frequencies.

公开(公告)号：US12192997B2

公开(公告)日：2025-01-07

申请号：US17441830

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Avik Sengupta ,  Bishwarup Mondal ,  Debdeep Chatterjee ,  Alexei Davydov

IPC: H04W72/1273 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23 ,  H04W72/51

Abstract: Systems, devices, and techniques for adjusting a user equipment (UE) processing time parameter in a wireless communication system that include transmission and reception points (TRPs) are described. A described technique performed by UE includes receiving a first physical downlink shared channel (PDSCH) from a first TRP corresponding to a first scheduling physical downlink control channel (PDCCH) and a second PDSCH from a second TRP corresponding to a second scheduling PDCCH. The technique further includes transmitting a first hybrid automatic repeat request acknowledgement (HARQ-ACK) message and a second HARQ-ACK message based on the first PDSCH and the second PDSCH in accordance with a first processing time parameter and a second processing time parameter, respectively. The first processing time parameter can be based on a PDSCH mapping type, a processing capability of the UE, and one or more timing characteristics of the first PDSCH and the second PDSCH.

公开(公告)号：US12177151B2

公开(公告)日：2024-12-24

申请号：US17286341

申请日：2019-10-16

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Alexei Davydov ,  Yushu Zhang

IPC: H04W72/23 ,  H04L1/00 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/0453

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for mapping a phase-tracking reference signal to resource elements. Other embodiments may be described and claimed.

公开(公告)号：US12167444B2

公开(公告)日：2024-12-10

申请号：US17950266

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Seunghee Han ,  Gang Xiong ,  Gregory V. Morozov ,  Yushu Zhang ,  Joonyoung Cho ,  Dae Won Lee ,  Yongjun Kwak

IPC: H04W74/00 ,  H04L5/00 ,  H04W74/0833

Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with a fifth-generation Evolved Node-B (gNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a message comprising an indicator to indicate a number of contention based physical random access channel (PRACH) preambles within a PRACH occasion per Synchronization Signal Block (SSB). The second circuitry may be operable to generate a first PRACH occasion, based on the indicator.

公开(公告)号：US12156169B2

公开(公告)日：2024-11-26

申请号：US18101101

申请日：2023-01-24

Applicant: Apple Inc.

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

IPC: H04L5/00 ,  H04L1/20 ,  H04W56/00 ,  H04W64/00 ,  H04W72/0446 ,  H04W72/30 ,  H04W76/28 ,  H04W80/08

Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with a fifth-generation Evolved Node-B (gNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a Tracking Reference Signal (TRS) transmission and to process a Synchronization Signal block (SS-block) transmission. The second circuitry may be operable to measure a reference signal parameter based on the TRS transmission and the SS-block transmission.

公开(公告)号：US12101187B2

公开(公告)日：2024-09-24

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 ,  H04L1/00 ,  H04L1/1607 ,  H04L5/00

CPC classification number: H04L1/1671 ,  H04L1/0027 ,  H04L5/0032 ,  H04L5/0051

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.

公开(公告)号：US12088516B2

公开(公告)日：2024-09-10

申请号：US17429126

申请日：2020-02-17

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Avik Sengupta ,  Debdeep Chatterjee ,  Alexei Davydov ,  Yushu Zhang

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/044

CPC classification number: H04L5/0035 ,  H04L5/0039 ,  H04L5/0094 ,  H04W72/044

Abstract: An approach is described for an access node configured for ultra-reliable and low latency (URLLC) transmission using multi-transmission reception point (TRP) to a UE. The access node includes processor circuitry and radio front end circuitry. The processor circuitry is configured to allocate resource blocks into a first portion and a second portion based on a resource indication value (RIV), a length of contiguously allocated resource blocks (LRBS) and a fraction. The radio front end circuitry is configured to transmit the first portion to the UE via a first transmission reception point (TRP1), and transmit the second portion to the UE via a second transmission reception point (TRP2).

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.