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：US12261797B2

公开(公告)日：2025-03-25

申请号：US17755678

申请日：2021-05-11

Applicant: Apple Inc.

Inventor： Jie Cui ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Huaning Niu ,  Manasa Raghavan ,  Qiming Li ,  Xiang Chen ,  Yang Tang

IPC: H04L5/00 ,  H04B7/06 ,  H04W72/21

Abstract: A user equipment (UE) is configured to determine to perform a sounding reference signal (SRS) transmission with an antenna port switch operation, wherein the SRS transmission with the antenna port switch operation is performed during an SRS transmission occasion comprising one or more symbols of a slot and apply one or more scheduling restriction rules corresponding to the SRS transmission with the antenna port switch to provide one or more scheduling restrictions for the UE, wherein the scheduling restrictions cause the UE to omit performing at least one of transmission operations or reception operations during one or more symbols of the slot or one or more symbols of an adjacent slot.

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.

公开(公告)号：US12250565B2

公开(公告)日：2025-03-11

申请号：US17440611

申请日：2020-04-08

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Jie Cui ,  Wei Zeng ,  Yang Tang ,  Yushu Zhang

IPC: H04W16/28 ,  H04L5/00 ,  H04W80/02

Abstract: Some aspects include an apparatus, method, and computer program product for facilitating control messaging for multi-beam communications in 5G wireless communication systems. Nodes of a 5G network may be generate Medium Access Control Control Elements (MAC CEs) to update User Equipment (UE) with different Component Carrier (CC) settings. The MAC CEs may update a list of CCs to reduce messaging overhead and latency. For example, a MAC CE may indicate an update for a Transmission Configuration Indication (TCI) state for a list of CCs. Similarly, a MAC CE may be used to update a spatial relation for a Sounding Reference Signal (SRS) resource set and/or a SRS resource corresponding to a list of CCs. A MAC CE may also be used to update multiple TCI codepoints having one or two TCI states in a multi-Transmission Reception Point (multi-TRP) scenario.

公开(公告)号：US20250081110A1

公开(公告)日：2025-03-06

申请号：US18724985

申请日：2022-01-10

Applicant: Apple Inc.

Inventor： Qiming Li ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Huaning Niu ,  Jie Cui ,  Manasa Raghaven ,  Xiang Chen ,  Yang Tang ,  Yuqin Chen

IPC: H04W52/02 ,  H04L5/00 ,  H04W24/08

Abstract: Techniques, described herein, include solutions for enabling a user equipment (UEs) to operate in a power saving mode (PSM) by performing radio link monitoring (RLM), beam failure detection (BFD), and radio resource management (RRM) based on one or more reference signals with a decreased periodicity. The reference signals may include system synchronizations blocks (SSBs), a channel state information (CSI) m signal (CSI-RSs), or a combination thereof. A base station may be configured to operate as a master cell group (MCG) node or a secondary cell group (SCG) node and may transmit reference signals with an increased periodicity to UEs in an active mode of operation while also transmitting reference signals with a decreased periodicity to UEs in a PSM.

公开(公告)号：US12245209B2

公开(公告)日：2025-03-04

申请号：US17439680

申请日：2020-10-16

Applicant: Apple Inc.

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

IPC: H04W72/0453 ,  H04W72/02 ,  H04W72/23

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing downlink and uplink scheduling in communication above 52.6 GHz. For example, some aspects of this disclosure relate to a base station. The base station includes a transceiver configured to communicate over a wireless network with a user equipment (UE) and a processor communicatively coupled to the transceiver. The processor determines that the communication between the base station and the UE is in a frequency range above 52.6 GHz. In response to the determination, the processor disables a frequency main resource assignment (FDRA), modifies a Resource Block Group (RBG) size, or modifies a Resource Indication Value (RIV) determination. The processor generates a Downlink Channel Indicator (DCI) based at least on one or more of the disabled FDRA, the modified RBG size, or the modified RIV determination. The processor transmits, using the transceiver, the DCI to the UE.