公开(公告)号：US20220303910A1

公开(公告)日：2022-09-22

申请号：US17442047

申请日：2020-05-15

Applicant: Apple Inc.

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

IPC: H04W52/14 ,  H04W52/36 ,  H04L5/00 ,  H04W74/08 ,  H04L1/08

Abstract: This disclosure relates to techniques for providing control signaling for robust uplink data transmissions in a wireless communication system. A wireless device may be configured to perform an uplink transmission, including performing multiple repetitions of the uplink transmission. The wireless may select a beam for each repetition, and it may be the case that different repetitions are transmitted using different beams.

公开(公告)号：US20220303781A1

公开(公告)日：2022-09-22

申请号：US17437909

申请日：2020-10-15

Applicant: Apple Inc.

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

IPC: H04W16/14 ,  H04W76/10 ,  H04W74/08

Abstract: This disclosure relates to techniques for a wireless device to initiate channel occupancy in unlicensed spectrum in a wireless communication system. The wireless device may establish a wireless link with a cellular base station. The wireless device may determine to perform an uplink transmission to the cellular base station on an unlicensed frequency channel. The wireless device may determine whether the cellular base station has channel occupancy of the unlicensed frequency channel. The wireless device may determine whether to initiate channel occupancy of the unlicensed frequency channel. The decision whether to initiate channel occupancy may be based at least in part on whether the cellular base station has channel occupancy of the unlicensed frequency channel.

公开(公告)号：US20220303254A1

公开(公告)日：2022-09-22

申请号：US17598224

申请日：2021-06-15

Applicant: Apple Inc.

Inventor： Shu Guo ,  Fangli Xu ,  Yuqin Chen ,  Xiangying Yang ,  Huarui Liang ,  Haijing Hu ,  Chunhai Yao ,  Dawei Zhang ,  Yushu Zhang ,  Zhibin Wu

IPC: H04L9/40 ,  H04L9/14

Abstract: The present application relates to devices and components including apparatus, systems, and methods for secured user equipment communications over a user equipment relay. In some embodiments, symmetric or asymmetric encryption may be used for the secured user equipment communications.

公开(公告)号：US20220303087A1

公开(公告)日：2022-09-22

申请号：US17437960

申请日：2020-10-12

Applicant: Apple Inc.

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

IPC: H04L5/00 ,  H04W72/04

Abstract: Apparatuses, systems, and methods for sounding reference signal (SRS) coverage enhancement. A user equipment device (UE) may receive a configuration for SRS time domain bundling from a base station and may transmit, to the base station, at least one SRS transmission in accordance with the configuration. The configuration may include an indication of (and/or indicate) one or more SRS transmission occasions. The configuration may be communicated via higher layer signaling or physical layer signaling. The RRC parameter may be an SRS-ResourceSet parameter or an SRS-Resource parameter and may include a nrofSlots parameter to indicate the number of slots, where a slot may correspond to an SRS transmission occasion. The MAC CE may include at least four bits indicating the number of slots. The DCI may include at least one field indicating the number of slots.

公开(公告)号：US20220279579A1

公开(公告)日：2022-09-01

申请号：US17053718

申请日：2019-11-07

Applicant: Apple Inc.

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04L27/26

Abstract: Apparatuses, systems, and methods for selecting channel access mechanisms in wireless communications, and particularly in 3GPP NR-U. For example, an appropriate listen-before talk (LBT) channel access category (Cat) may be defined for certain messages, such as certain DL and/or UL control messages and certain RACH messages. For other messages, an appropriate Cat may be signaled by the base station, e.g., in a DCI message or SIB. Mechanisms are provided for the base station to signal to the UE certain channel access profile parameters, such as an appropriate LBT Cat, CAPC, and/or CP extension. Mechanisms are also provided for adjustment of contention window duration.

公开(公告)号：US20220166486A1

公开(公告)日：2022-05-26

申请号：US17439179

申请日：2020-02-12

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：US20210099223A1

公开(公告)日：2021-04-01

申请号：US17002734

申请日：2020-08-25

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Dawei Zhang ,  Haitong Sun ,  Wei Zeng ,  Hong He ,  Yuchul Kim ,  Chunhai Yao ,  Haijing Hu

IPC: H04B7/08 ,  H04W72/12 ,  H04L5/00

Abstract: Apparatuses, systems, and methods for performing downlink signal reception with antenna panel switching in a wireless communication system. A cellular base station may receive an indication of an antenna panel activation delay from a wireless device. The cellular base station may select a scheduling offset for a transmission to the wireless device based at least in part on the antenna panel activation delay. The scheduling offset may be selected to be at least the length of the antenna panel activation delay if it is expected that the wireless device may perform antenna panel activation to receive the transmission. The cellular base station may schedule the transmission to the wireless device using the selected scheduling offset, and may perform the transmission to the wireless device at the selected scheduling offset after scheduling the transmission to the wireless device.

公开(公告)号：US12284653B2

公开(公告)日：2025-04-22

申请号：US17755591

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Seyed Ali Akbar Fakoorian ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Wei Zeng

IPC: H04W72/21 ,  H04B1/713 ,  H04W72/231 ,  H04L1/18

Abstract: A user equipment (UE) is configured to determine a repetition factor for physical uplink control channel (PUCCH) transmissions. The UE receives a first physical uplink control channel (PUCCH) repetition factor indication, wherein the first PUCCH repetition factor indication is a radio resource control (RRC)-based indication, receives a second PUCCH repetition factor indication, wherein the second PUCCH repetition factor is dynamically indicated via a downlink control information (DCI) transmission and determines a number of PUCCH repetitions based on at least one of the first and second PUCCH repetition factor indications.

公开(公告)号：US12278788B2

公开(公告)日：2025-04-15

申请号：US17776703

申请日：2021-09-23

Applicant: Apple Inc.

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

IPC: H04L5/00 ,  H04L1/1829

Abstract: This disclosure relates to techniques for performing wireless communications including determination of actual time windows for maintaining power consistency and/or phase continuity associated with transmission between a user equipment (UE) and a base station. Techniques for determining the length, begging, and end of such windows are disclosed. A UE and/or base station may use various rules to determine the window(s).

公开(公告)号：US20250106875A1

公开(公告)日：2025-03-27

申请号：US18972129

申请日：2024-12-06

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Haijing Hu ,  Dawei Zhang ,  Yuqin Chen ,  Chunhai Yao ,  Yushu Zhang ,  Wei Zeng

IPC: H04W72/30

Abstract: User equipment devices (UEs) may receive multimedia broadcast and multicast service (MBMS) transmissions over a bandwidth part (BWP) specifically allocated for MBMS point-to-multipoint (PTM) transmissions, or over MBMS-specific resources configured for PTM transmissions within a UE-dedicated BWP. The network (e.g. base station) may configure the MBMS-specific BWP for the UE for the PTM transmissions per serving cell. The MBMS-specific BWP may be used for downlink transmissions, and may be cell specific or UE specific per serving cell. The base station may provide MBMS PTM scheduling information per BWP to the UE, may indicate whether a UE-dedicated BWP may be used for PTM scheduling and transmission, and may provide the corresponding scheduling configuration when applicable. The UE may communicate its various capabilities related to MBMS reception and simultaneous reception of PTM and point-to-point (PTP) transmissions to the base station to aid the base station in scheduling communications of the UE.