公开(公告)号：US12289735B2

公开(公告)日：2025-04-29

申请号：US17655252

申请日：2022-03-17

Applicant: APPLE INC.

Inventor： Huaning Niu ,  Dawei Zhang ,  Farhan Aziz ,  Haitong Sun ,  Hong He ,  Navid Ehsan ,  Sigen Ye ,  Wei Zeng ,  Wei Zhang ,  Weidong Yang

IPC: H04W72/23 ,  H04L5/00 ,  H04W76/28

Abstract: A wireless communication system may adapt physical downlink control channel (PDCCH) monitoring behaviors using downlink control information (DCI). The change in monitoring behavior may be skipping or switching. The timeline for applying switching or skipping may be applied after a reference point and a processing time. In some embodiments, the processing time may be either based on UE processing, network processing, or a combination.

公开(公告)号：US12279312B2

公开(公告)日：2025-04-15

申请号：US17439349

申请日：2021-08-06

Applicant: Apple Inc.

Inventor： Hong He ,  Dawei Zhang ,  Haitong Sun ,  Huaning Niu ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Sigen Ye ,  Wei Zeng ,  Yushu Zhang

IPC: H04W74/08 ,  H04L5/00 ,  H04W74/00 ,  H04W74/0833

Abstract: Apparatuses, systems, and methods for downlink control resources sets and RACH procedures during initial access in wireless communication, e.g., in 5G NR systems and beyond, including methods for CORESET#0 configuration, SSB/CORESET #0 multiplexing pattern 1 for mixed SCS, time-domain ROs determination for 480 kHz/960 kHz SCSs, and RA-RNTI determination for 480 kHz/960 kHz SCSs.

公开(公告)号：US12273906B2

公开(公告)日：2025-04-08

申请号：US17439024

申请日：2020-10-12

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Huaning Niu ,  Hong He ,  Wei Zeng ,  Chunxuan Ye ,  Oghenekome Oteri ,  Sigen Ye ,  Dawei Zhang ,  Chunhai Yao ,  Jie Cui ,  Yang Tang

IPC: H04W72/542 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23

Abstract: A cellular base station (BS) which transmits more flexible downlink control information (DCI) to the UE, and a UE capable of receiving and processing a received DCI message. The DCI message may have a DCI format of 0_1 or 0_2 and further may comprise an UL-SCH set to 0, a CSI request field of all 0s and an SRS request field having a nonzero value. The DCI message may indicate to the UE that the UE should: 1) transmit an aperiodic SRS corresponding to SRS request; and 2) that the UE should not transmit on the PUSCH. The DCI may include existing fields that specify either a slot offset or beam information useable when transmitting the aperiodic SRS. The base station may also generate a DCI message with an SRS trigger that is targeted to a plurality of UEs in a group, or a plurality of groups of UEs, for greater efficiency.

公开(公告)号：US12273898B2

公开(公告)日：2025-04-08

申请号：US17765478

申请日：2021-04-05

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Dawei Zhang ,  Wei Zeng ,  Yushu Zhang ,  Hong He ,  Chunxuan Ye ,  Huaning Niu ,  Jie Cui ,  Wei Zhang

IPC: H04W72/232 ,  H04W72/12

Abstract: Techniques described herein may include a special scheduling cell (sSCell) provided for dynamic spectrum sharing (DSS). The sSCell may schedule a primary cell of a master cell group (MCG) or a primary cell of a secondary cell group (SCG). The primary cell may be referred to as a special cell or SpCell. The sSCell may be activated and/or deactivated, enter in or exit from a state of dormancy, and radio link monitoring (RLM), beam failure recovery (BFR), and cell grouping parameters may be provided. Techniques described herein include configuring a UE-specific search space (USS) with non-fallback downlink control information (DCI), USS with fallback DCI, and overall search space for DSS enhancement.

公开(公告)号：US20250113346A1

公开(公告)日：2025-04-03

申请号：US18818480

申请日：2024-08-28

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Ankit Bhamri ,  Chunxuan Ye ,  Dawei Zhang ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Xiang Chen

IPC: H04W72/044 ,  H04L5/00 ,  H04W72/232

Abstract: The present application relates to devices and components including apparatus, systems, and methods for supporting eight transmitter uplink operation.

公开(公告)号：US12267798B2

公开(公告)日：2025-04-01

申请号：US17813783

申请日：2022-07-20

Applicant: Apple Inc.

Inventor： Ankit Bhamri ,  Dawei Zhang ,  Sigen Ye ,  Wei Zeng ,  Yang Tang

IPC: H04W56/00 ,  H04L5/00

Abstract: This application relates to wireless communications, including methods and apparatus to manage uplink (UL) transmit switching with multiple timing advance groups (TAGs) for wireless devices. A wireless device is configured to use multiple carriers selected from a set of available carriers that can be associated with different TAGs. When a second set of carriers, used after switching from a first set of carriers, includes carriers that belong to different TAGs, the wireless device determines whether to transmit on one or more first uplink transmission occasions for each of the carriers in the second set of carriers based on whether a first UL transmission occasion for at least one carrier overlaps a switching gap time period. The wireless device can disallow transmission on first UL transmission occasions of one or more carriers to accommodate the overlap.

公开(公告)号：US12267131B2

公开(公告)日：2025-04-01

申请号：US17439292

申请日：2020-04-08

Applicant: Apple Inc. ,  Haitong Sun

Inventor： Haitong Sun ,  David Neumann ,  Dawei Zhang ,  Ghaith N. Hattab ,  Ismael Gutierrez Gonzalez ,  Wei Zeng ,  Yeong-Sun Hwang ,  Yushu Zhang

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04W72/044

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing capability signaling design for 3rd Generation Partnership Project (3GPP) release 15 (Rel-15) and/or release 16 (Rel-16) multi-input multi-output (MIMO) enhancement. For example, systems and methods are provided implementing designs for New Radio (NR) MIMO channel state information (CSI) for a small bandwidth part (BWP) and/or a small number of subbands. For example, some aspects relate to a user equipment (UE) including a transceiver configured to communicate with a base station and a processor communicatively coupled to the transceiver. The processor receives, from the base station, a CSI reporting configuration message. The processor determines, using the CSI reporting configuration message, that a number of physical resource blocks (PRBs) of a BWP associated with the CSI reporting configuration message is less than a threshold number. The processor also generates and transmits a CSI report for the BWP.

公开(公告)号：US12256454B2

公开(公告)日：2025-03-18

申请号：US17755483

申请日：2019-11-04

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Chunhai Yao ,  Clive E. Rodgers ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng ,  Yuqin Chen ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W76/19 ,  H04W16/28 ,  H04W72/1263 ,  H04W72/56 ,  H04W74/0833

Abstract: A user equipment (UE) is connected to a wireless network and operates in a carrier aggregation (CA) state that includes a first connection to a primary cell and a second connection to a secondary cell. The UE determines a beam failure has occurred for one of the first connection or the second connection and initiates a beam failure recovery (BFR) operation. The BFR operation includes transmitting, to the primary cell, a BFR Medium Access Control (MAC) Control Element (CE).

公开(公告)号：US12256369B2

公开(公告)日：2025-03-18

申请号：US17441636

申请日：2020-08-05

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang

IPC: H04W72/0446 ,  H04L1/08 ,  H04L5/14 ,  H04W16/14

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing transmission of nominal repetitions of data over an unlicensed spectrum. One or more nominal repetitions of data are to be transmitted by a user equipment (UE) over an unlicensed spectrum used for both uplink and downlink transmissions. The one or more nominal repetitions of the data are segmented into multiple actual repetitions of portions of the data. The UE identifies an orphan symbol in an actual repetition of the multiple actual repetitions of portions of the data, and determines a filler symbol to replace the orphan symbol in the actual repetition. In addition, the UE transmits the multiple actual repetitions including the filler symbol in replacement of the orphan symbol to a base station over the unlicensed spectrum.

公开(公告)号：US12250668B2

公开(公告)日：2025-03-11

申请号：US17442519

申请日：2020-10-16

Applicant: Apple Inc.

Inventor： Oghenekome Oteri ,  Wei Zeng ,  Yushu Zhang ,  Weidong Yang ,  Dawei Zhang ,  Chunxuan Ye ,  Hong He ,  Haitong Sun

IPC: H04W72/232 ,  H04W72/044 ,  H04W72/23 ,  H04W72/51 ,  H04W72/54

Abstract: Methods and apparatuses are disclosed for performing fast beam switching in a high-frequency wireless communication environment. Higher frequencies reduce transmission wavelength, which allows for an increased number of antennas and an increased number of beams. Therefore, beams become narrower and are more prone to failure. The UE must be capable of quickly identifying the beam failure and switching to a new beam. Therefore, the UE is capable of receiving multiple beams from the base station and configures both for testing and immediate use. In some cases, the UE can receive multiple beams for testing and assumes a default beam while feeding back to the base station a preferred beam. To support the larger number of available beams, MAC-CE and DCI are modified to identify this increased number of states. Alternatively, two MAC-CEs are sent, each containing a different group of states, and the DCI identifies both the group and the selected state.