公开(公告)号：US12166559B2

公开(公告)日：2024-12-10

申请号：US17593294

申请日：2021-06-07

Applicant: APPLE INC.

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

IPC: H04B7/06 ,  H04B17/318 ,  H04L5/00 ,  H04W76/18

Abstract: Systems and methods for beam failure recovery (BFR) are disclosed herein. A user equipment (UE) receives downlink (DL) reference signal(s) on corresponding beam(s) from a base station. The UE performs beam failure detection (BFD) on such beams used for user data to determine whether a beam failure has occurred, and candidate beam detection (CBD) on such beams not used for user data to identify candidate beams for recovering from the beam failure. The BFD and the CBD are based on both uplink (UL) channel performance considerations and DL channel performance considerations, as determined using the DL reference signal(s), such that a beam failure may be determined in the UL, the DL, or both, and a candidate beam may be identified for UL, DL, or both. The UE sends a beam failure recovery request BFRQ with this information to the base station, and the system changes beams accordingly.

公开(公告)号：US20240405838A1

公开(公告)日：2024-12-05

申请号：US18805964

申请日：2024-08-15

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Weidong Yang ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim ,  Hong He ,  Chunhai Yao ,  Chunxuan Ye ,  Oghenekome Oteri ,  Ghaith N Hattab ,  Ismael Gutierrez Gonzalez ,  Jie Cui ,  Yang Tang ,  Yeong-Sun Hwang

IPC: H04B7/06 ,  H04B7/0417

Abstract: A base station and wireless communication (UE) may perform type II CSI-RS port selection based at least on partial reciprocity between an uplink path and a downlink path between the base station and the UE. The base station may identify dominant signal paths between the base station and the UE, based on measurements performed during uplink transmissions, and may transmit, to the UE, corresponding information indicative of CSI measurement and reporting configuration that may include a single measurement resource or multiple measurement resources. Each measurement resource may include multiple-port CSI-RS ports. The UE may indicate, to the base station, selection of a measurement resource when multiple measurement resources are configured, and may also report layer independent or layer common selection of a subset of CSI-RS ports included in the indicated single measurement resource or multiple measurement resources. Further enhancements include frequency domain compression enhancement and dynamic codebook parameter reconfiguration.

公开(公告)号：US20240405827A1

公开(公告)日：2024-12-05

申请号：US18697335

申请日：2021-10-08

Applicant: APPLE INC.

Inventor： Jie Cui ,  Dawei Zhang ,  Hong He ,  Huaning Niu ,  Manasa Raghavan ,  Qiming Li ,  Seyed Ali Akbar Fakoorian ,  Xiang Chen ,  Yang Tang ,  Yushu Zhang

IPC: H04B7/06 ,  H04B17/318 ,  H04W72/21

Abstract: Systems and methods for networks having user equipment (UE) that can perform measurement/reporting of received signals and a sounding reference signal (SRS) transmission that is part of an SRS antenna port switching procedure are described herein. In some circumstances, the measurement and the SRS antenna port switching procedure overlap on one or more symbols. Across various embodiments, the UE prioritizes one of the measurement and the SRS antenna port switching procedure based on one or more of a scheduling type (periodic, semi-persistent, aperiodic) of the measurement, a scheduling type of a channel state information (CSI) report for a measurement result for the measurement, and/or a scheduling type of the SRS transmission of the SRS antenna port switching procedure. Networks that avoid overlaps by scheduling SRS transmissions away from UE signal measurements, or transmissions of signals to be measured away from UE SRS antenna port switching procedures, are also described.

公开(公告)号：US12160813B2

公开(公告)日：2024-12-03

申请号：US17442076

申请日：2021-05-04

Applicant: Apple Inc.

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

IPC: H04W48/16

Abstract: The present application relates to devices and components including apparatus, systems, and methods to determine a procedure period for a cell global identifier (CGI) reading procedure.

公开(公告)号：US12160296B2

公开(公告)日：2024-12-03

申请号：US17441623

申请日：2021-01-14

Applicant: Apple Inc.

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

IPC: H04B7/06 ,  H04W72/232 ,  H04W74/08 ,  H04W74/0833

Abstract: Aspects herein relate to wireless devices, circuits, and methods for triggering earlier Channel State Information (CSI) feedback, comprising: transmitting, by a wireless device to a wireless station, an indication to provide earlier CSI feedback (e.g., wherein the indication comprises an indication that the wireless device has a reduced capability to receive messages); receiving from the wireless station, in response to the indication, a modified message (e.g., a Downlink Control Information or modified Medium Access Control Random Access Response), wherein the modified message triggers an earlier CSI feedback from the wireless device; transmitting to the wireless station, in response to receiving the modified message, the earlier CSI feedback using a message related to a RACH procedure (e.g., a Msg3); and completing a connection to the wireless station, e.g., in response to a repeated number of initial access messages broadcast from the wireless station and based on the transmitted CSI feedback.

公开(公告)号：US12156228B2

公开(公告)日：2024-11-26

申请号：US17593679

申请日：2020-05-15

Applicant: APPLE INC.

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

IPC: H04W72/23 ,  H04L5/00 ,  H04W74/0808

Abstract: A method for a user equipment (UE) may detect Downlink Control Information (DCI) format 2_0. The DCI format 2_0 may comprise an available resource block (RB) set indicator information element (IE) that indicates a state of Listen Before Talk (LBT) sub-bands, and a Channel Occupancy Time (COT) duration indicator IE. The available RB set indicator is set to an unknown state when there is insufficient time to fully prepare the DCI Format 2_0.

公开(公告)号：US12156114B2

公开(公告)日：2024-11-26

申请号：US18494980

申请日：2023-10-26

Applicant: APPLE INC.

Inventor： Zhibin Wu ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng ,  Yuqin Chen

IPC: H04W40/00 ,  H04L45/00 ,  H04W40/02 ,  H04W76/11 ,  H04W88/04

Abstract: Systems and methods for using a relay user equipment (UE) to transport data of interest received from a first remote UE to a second remote UE on a UE to UE relay within a wireless communication system are discussed herein. These methods may be performed at Layer 2 of a protocol stack of the wireless communication system. Data packets sent on the UE to UE relay may include an adaptation header including routing information (e.g., Layer 2 addresses, a bearer-specific index, etc.) for the UE to UE relay. An adaptation layer may accordingly be provided within Layer 2 to decode these adaptation headers. In some cases, a per-bearer approach may be used to map between individual direct bearers of a hop by hop path configuration of the UE to UE relay. Embodiments eschewing the adaptation header and instead using logical channel identifiers (LCIDs) to make routing indications are also described.

公开(公告)号：US12155439B2

公开(公告)日：2024-11-26

申请号：US17593797

申请日：2020-08-05

Applicant: Apple Inc.

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

IPC: H04B7/06 ,  H04B7/0404

Abstract: An example method for wireless communication includes: transmitting to a base station, via a user device: (1) a capability report for each of a plurality of antenna panels; and (2) an initial antenna panel index; receiving, from the base station, configuration information corresponding to each antenna panel of the plurality of antenna panels; selecting a first antenna panel for a first uplink (UL) transmission to the base station, wherein the first antenna panel corresponds to the antenna panel with the initial antenna panel index; selecting first configuration information corresponding to the selected first antenna panel; and transmitting the first UL transmission to the base station, using the selected first antenna panel and the selected first configuration information. In other aspects, rather than initially receiving configuration information corresponding to each antenna panel, the user device may receive the configuration information for each panel as it is selected for an UL transmission.

公开(公告)号：US20240389133A1

公开(公告)日：2024-11-21

申请号：US18785355

申请日：2024-07-26

Applicant: APPLE INC.

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

IPC: H04W74/00 ,  H04L5/00 ,  H04W56/00 ,  H04W74/0833

Abstract: Provided is a method for a user equipment (UE). The UE obtains a physical uplink control channel (PUCCH) secondary cell (SCell) activation command from a primary cell (PCell) or primary secondary-cell-group cell (PSCell). The PUCCH SCell activation command is used for an PUCCH SCell activation of a target PUCCH SCell for the UE. The UE performs PUCCH SCell activation operations associated with a valid timing advance (TA) and the PUCCH SCell activation command. TA is considered to be a valid TA when the TA meets a preset criterion. The UE generates a channel state information (CSI) report for transmission to at least one of the PCell, PSCell and the target PUCCH SCell. The CSI report indicates that the PUCCH SCell activation is completed.

公开(公告)号：US20240388391A1

公开(公告)日：2024-11-21

申请号：US18779192

申请日：2024-07-22

Applicant: Apple Inc.

Inventor： Qiming Li ,  Dawei Zhang ,  Huaning Niu ,  Jie Cui ,  Manasa Raghavan ,  Xiang Chen ,  Yang Tang ,  Yushu Zhang

IPC: H04L5/00

Abstract: Techniques discussed herein may better ensure efficient fine time tracking during a second cell (SCell) activation procedure by using a tracking reference signal (TRS) that is User Equipment (UE) specific. A primary cell (PCell) may provide a UE with a TRS configuration that includes a UE-specific reference signal (RS) with aperiodicity. In response to receiving a SCell activation command from the PCell, the UE may perform cell activation in accordance with the UE-specific RS. As the delay time for the UE-specific RS may be less than the delay time for a system synchronization block (SSB) from the SCell, use of the UE-specific RS may expedite the cell activation procedure.