公开(公告)号：US20220303973A1

公开(公告)日：2022-09-22

申请号：US17437935

申请日：2020-10-12

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/0413

Abstract: Apparatuses, systems, and methods for SRS antenna switching. A UE may transmit, to a base station, a capability message indicating an antenna configuration associated with SRS antenna switching e.g., via as RRC signaling. The capability message may indicate at least one of (and/or one or more of) a one transmit point (1T) and six receive point (6R) SRS resource set configuration, a 1T8R SRS resource set configuration, a 2T6R SRS resource set configuration, a 2T8R SRS resource set configuration, and/or a 4T8R SRS resource set configuration. The UE may receive, from the base station, a configuration message, e.g., via RRC signaling. The configuration message may indicate an SRS antenna switching configuration based, at least in part, on the capability message. The UE may transmit, to the base station, one or more SRSs, e.g., according to the SRS antenna switching configuration.

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：US20220303097A1

公开(公告)日：2022-09-22

申请号：US17439377

申请日：2020-10-19

Applicant: Apple Inc.

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

IPC: H04L5/00 ,  H04W72/12 ,  H04L27/26

Abstract: The present application relates to devices and components including apparatus, systems, and methods for physical uplink shared channel transmissions with repetitions on different transmit beams with phase tracking reference signals.

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：US20220303055A1

公开(公告)日：2022-09-22

申请号：US17442065

申请日：2020-05-21

Applicant: Apple Inc.

Inventor： Zhibin Wu ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Yuqin Chen

IPC: H04L1/08 ,  H04L1/18 ,  H04L5/00 ,  H04W28/26 ,  H04W72/02

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and a network to perform flexible acknowledgement. A UE may determine whether or not to solicit feedback (e.g., HARQ ACK/NACK) for one or more groupcast transmissions. The determination may be based on factors such as a remaining time to perform the transmission and the amount of time needed to perform the transmission with and without allowing time to receive and process feedback.

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：US20220278835A1

公开(公告)日：2022-09-01

申请号：US17437798

申请日：2020-04-03

Applicant: Apple Inc.

Inventor： Shu Guo ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Huarui Liang ,  Xiangying Yang ,  Yuqin Chen

IPC: H04L9/08 ,  H04W12/041

Abstract: Apparatuses, systems, and methods for application function (AF) key generation and AF key renewal. A user equipment device (UE) may communicate with an application function (AF) via a radio access network (RAN) using a first AF key and determine that the first AF key has expired. The UE may derive a second AF key based on at least an Architecture for Authentication and Key Management for Applications (AKMA) anchor key (KAKMA) and a counter parameter and communicate with the AF via the RAN using the second AF key. At least one of the UE, the AF, and/or an AKMA Anchor Function (AAnF) may be configured to monitor expiration of the first AF key based on an associated lifetime of the first AF key. The first and second AF keys may be derived using a key derivation function that includes at least one variable parameter.

公开(公告)号：US20220255613A1

公开(公告)日：2022-08-11

申请号：US17732201

申请日：2022-04-28

Applicant: Apple Inc.

Inventor： Jia Tang ,  Sami M. Almalfouh ,  Haitong Sun ,  Zhu Ji ,  Wei Zeng ,  Johnson O. Sebeni ,  Wei Zhang ,  Beibei Wang ,  Dawei Zhang ,  Pengkai Zhao

IPC: H04B7/06 ,  H04B7/08 ,  H04W24/10 ,  H04W52/02

Abstract: Apparatuses, systems, and methods for a wireless device to perform beam management procedures with a base station. A wireless device in communication with a 5G base station may perform measurements and determine constraints relevant to beam selection. The device may select a recommended beam based on the measurements and constraint(s) and indicate the recommended beam to the base station. A recommended uplink beam may not correspond to a recommended downlink beam.