公开(公告)号：US11711824B2

公开(公告)日：2023-07-25

申请号：US17960864

申请日：2022-10-06

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Hong He ,  Ajit Nimbalker ,  Joonyoung Cho ,  Dae Won Lee

IPC: H04W72/23 ,  H04L1/1829 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/21

CPC classification number: H04W72/23 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/0055 ,  H04W72/0453 ,  H04W72/21

Abstract: Methods, apparatus, and systems are provided for signalling transmissions using carriers of different numerologies. In one example, a baseband processor of a base station is configured to perform operations including encoding a first signal to be transmitted on a physical downlink control channel (PDCCH) on a first component carrier with a first subcarrier spacing. The first signal includes downlink control information (DCI) indicating resources for a second signal to be transmitted on a second component carrier with a second subcarrier spacing. Respective numerologies of the first component carrier and the second component carrier are different from one another in accordance with the first subcarrier spacing and the second subcarrier spacing. The baseband processor is configured to cause transmission of the first signal on the PDCCH.

公开(公告)号：US11678278B2

公开(公告)日：2023-06-13

申请号：US17185623

申请日：2021-02-25

Applicant: Apple Inc.

Inventor： Ajit Nimbalker ,  Debdeep Chatterjee ,  Jeongho Jeon ,  Fatemeh Hamidi-Sepehr ,  Sergey Panteleev ,  Gang Xiong ,  Alexey Vladimirovich Khoryaev ,  Mikhail Shilov ,  Sergey Sosnin ,  Andrey Chervyakov

IPC: H04W4/00 ,  H04W56/00 ,  H04L5/00 ,  H04W4/40 ,  H04W72/12 ,  H04W88/02

CPC classification number: H04W56/001 ,  H04L5/001 ,  H04L5/0048 ,  H04W4/40 ,  H04W72/1289 ,  H04L5/0005 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0094 ,  H04L5/0098 ,  H04W88/02

Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may attempt to decode sidelink synchronization signals (SLSSs) received on component carriers (CCs) of a carrier aggregation. In one configuration, synchronization resources for SLSS transmissions may be aligned across the CCs at subframe boundaries in time, restricted to a portion of the CCs, and restricted to a same sub-frame. The UE may, for multiple CCs, determine a priority level for the CC based on indicators in the SLSSs received on the CC. The UE may select, from the CCs on which one or more SLSSs are decoded, the CC for which the determined priority level is highest. The UE may determine a reference timing for sidelink communication based on the one or more SLSSs received on the selected CC.

公开(公告)号：US11641299B2

公开(公告)日：2023-05-02

申请号：US16645360

申请日：2018-09-06

Applicant: Apple Inc.

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

IPC: H04L27/26 ,  H04L1/00 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/04

Abstract: A user equipment (UE) can include processing circuitry configured to decode downlink control information (DCI) from a base station, the DCI including a modulation coding scheme (MCS) index and physical uplink shared channel (PUSCH) allocation. A demodulation reference signal (DM-RS) is encoded for transmission to the base station within a plurality of DM-RS symbols based on the PUSCH allocation. A phase tracking reference signal (PT-RS) time domain density is determined based on the MCS index and a number count of the DM-RS symbols for the DM-RS transmission. The PT-RS is encoded for transmission using a plurality of PT-RS symbols based on the determined time domain density. The plurality of symbols includes one or both of front-loaded DM-RS symbols and additional DM-RS symbols.

公开(公告)号：US11637602B2

公开(公告)日：2023-04-25

申请号：US17350527

申请日：2021-06-17

Applicant: Apple Inc.

Inventor： Wenting Chang ,  Yuan Zhu ,  Yushu Zhang ,  Gang Xiong ,  Huaning Niu

IPC: H04B7/06 ,  H04B7/08

Abstract: Devices for and methods of synchronous beam refinement using a beam refinement reference signal (BRRS) are generally described. In one example embodiment, a UE receives BRRS information indicating switching of a Tx beam. The UE then uses this information to switch an associated Rx beam. In some embodiments, timing information is used to match the switching times. In some embodiments, DCI and CSI-RS operations are used to determine switching for the synchronous beam refinement.

公开(公告)号：US11622337B2

公开(公告)日：2023-04-04

申请号：US17282735

申请日：2019-10-04

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Hong He ,  Yushu Zhang

IPC: H04W52/36 ,  H04W72/04 ,  H04W76/15 ,  H04W52/34 ,  H04W72/0446

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for determining dynamic power sharing in a dual connectivity network. Other embodiments may be described and claimed.

公开(公告)号：US11621812B2

公开(公告)日：2023-04-04

申请号：US16819849

申请日：2020-03-16

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Dae Won Lee ,  Gregory Morozov ,  Yushu Zhang ,  Jie Zhu

IPC: H04L5/00 ,  H04J3/02 ,  H04J13/00 ,  H04W72/04 ,  H04L27/20 ,  H04L27/26 ,  H04J11/00 ,  H04W72/0453

Abstract: Devices, systems and methods for a fifth generation (5G) or new radio (NR) system comprising multiplexing, by a gNodeB (gNB), a physical broadcast channel (PBCH) and an associated demodulation reference signal (DMRS) in a time division multiplexing (TDM) manner; and transmitting, by the gNB, the PBCH by employing a Discrete Fourier Transform-spread-orthogonal frequency-division multiplexing (DFT-s-OFDM) waveform and its associated DMRS.

公开(公告)号：US11601315B2

公开(公告)日：2023-03-07

申请号：US17531879

申请日：2021-11-22

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Debdeep Chatterjee ,  Yushu Zhang ,  Alexei Davydov ,  Wook Bong Lee ,  Dae Won Lee ,  Sameer Pawar ,  Jeongho Jeon ,  Hong He

IPC: H04L27/26 ,  H04L5/00

Abstract: Systems, methods, and circuitries are disclosed for determining Precoding Resource Block Groups (PRGs). In one example, a processor of a base station (BS) is configured to determine a plurality of PRGs that includes a number N consecutive Physical Resource Blocks (PRBs) over which a same precoder assignment is used, starting from a reference PRB. The plurality PRGs include a first boundary PRG, a second boundary PRG, and one or more other PRGs. The first boundary PRG is located at an upper boundary of a bandwidth part. The first boundary PRG comprises fewer than N PRBs when the upper boundary of the bandwidth part is not aligned with a PRG boundary. The second boundary PRG comprises fewer than N PRBs when a lower boundary of the bandwidth part is not aligned with a PRG boundary. A downlink data channel is transmitted to a UE in accordance with the precoder assignments.

公开(公告)号：US20230029293A1

公开(公告)日：2023-01-26

申请号：US17950468

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Ajit Nimbalker ,  Debdeep Chatterjee ,  Jeongho Jeon ,  Fatemeh Hamidi-Sepehr ,  Sergey Panteleev ,  Gang Xiong ,  Alexey Vladimirovich Khoryaev ,  Mikhail Shilov ,  Sergey Sosnin ,  Andrey Chervyakov

IPC: H04W56/00 ,  H04W4/40 ,  H04W72/12 ,  H04L5/00 ,  H04W88/02

Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may attempt to decode sidelink synchronization signals (SLSSs) received on component carriers (CCs) of a carrier aggregation. In one configuration, synchronization resources for SLSS transmissions may be aligned across the CCs at subframe boundaries in time, restricted to a portion of the CCs, and restricted to a same sub-frame. The UE may, for multiple CCs, determine a priority level for the CC based on indicators in the SLSSs received on the CC. The UE may select, from the CCs on which one or more SLSSs are decoded, the CC for which the determined priority level is highest. The UE may determine a reference timing for sidelink communication based on the one or more SLSSs received on the selected CC.

公开(公告)号：US20230023442A1

公开(公告)日：2023-01-26

申请号：US17958529

申请日：2022-10-03

Applicant: Apple Inc.

Inventor： Ralf Matthias Bendlin ,  Gang Xiong ,  Jong-Kae Fwu ,  Hong He ,  Yushu Zhang ,  Seunghee Han ,  Yuan Zhu

IPC: H04L5/00 ,  H04B1/7143 ,  H04L27/26 ,  H04W72/04

Abstract: Methods and apparatus are described for transmitting uplink control information (UCI) over an OFDMA-based uplink. In some embodiments, UCI symbols are mapped to resource elements (REs) in the time/frequency resource grid to maximize frequency diversity. In some embodiments, UCI is mapped in a manner that takes into account channel estimation performance by mapping UCI symbols to those REs that are closest (in terms of OFDM subcarriers/symbols) to REs that carry reference signals.

公开(公告)号：US11553440B2

公开(公告)日：2023-01-10

申请号：US16502477

申请日：2019-07-03

Applicant: Apple Inc.

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

IPC: H04W52/32 ,  H04W52/14 ,  H04W88/02

Abstract: Embodiments of the present disclosure provide for mechanisms to enable full-power uplink transmission. Other embodiments may be described and claimed.