公开(公告)号：US20230156824A1

公开(公告)日：2023-05-18

申请号：US17441752

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jia Tang ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W74/08 ,  H04L1/1812

CPC classification number: H04W74/0858 ,  H04L1/1812

Abstract: An evaluating user equipment (UE) includes memory and one or more processors communicatively coupled to the memory. The one or more processor are configured to schedule periodic resources with one or more configured feedback-based collision detection parameters, and perform a periodic transmission to one or more receiving UEs. The one or more processors are also configured to collect negative acknowledgement (NACK) statistics for the periodic transmission according to the configured feedback-based collision detection parameters, and selectively perform corrective action based on the collected NACK statistics and at least one of the configured feedback-based collision detection parameters.

公开(公告)号：US20230136259A1

公开(公告)日：2023-05-04

申请号：US17787829

申请日：2021-09-24

Applicant: APPLE INC.

Inventor： Alexander Sirotkin ,  Naveen Kumar R. Palle Venkata ,  Haijing Hu ,  Pavan Nuggehalli ,  Sarma V. Vangala ,  Yuqin Chen ,  Zhibin Wu ,  Sethuraman Gurumoorthy ,  Fangli Xu ,  Ralf Rossbach

IPC: H04W36/18 ,  H04W36/00

Abstract: Methods, systems, apparatuses, and computer programs for enhancing UE handover. In one aspect, the method can include obtaining a request for a handover event from a UE, wherein the request includes at least (i) a request for access to a primary cell group and (ii) data indicating capabilities of the UE, determining, based on the UE capabilities, that the UE is capable of maintaining communication with a secondary cell group of a base station during handover of the UE to the primary cell group of the first base station, generating based on the determined UE capability, a handover command that instructs the UE to maintain communication with the secondary cell group of the base station during handover of the UE to the primary cell group, encoding the generated handover command for transmission to the UE, and transmitting the generated handover command to the UE.

公开(公告)号：US20230061565A1

公开(公告)日：2023-03-02

申请号：US17442644

申请日：2020-05-14

Applicant: Apple Inc.

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

IPC: H04W72/12 ,  H04L1/18

Abstract: Techniques discussed herein facilitate generation of uplink control information for Enhanced Physical Uplink Control Channel (PUCCH) Format(s) (EPF(s)). One example embodiment employable in a User Equipment (UE) is configured to: determine Hybrid Automatic Repeat reQuest-Acknowledgment (HARQ-ACK) information; generate a PUCCH for a BandWidth Part (BWP) based at least in part on the HARQ-ACK information, wherein the PUCCH has an EPF; determine a PUCCH resource for the PUCCH and a first PRB index for the PUCCH, wherein the PUCCH resource is determined based at least in part on an index of a first Control Channel Element (CCE) of an associated Physical Downlink Control Channel (PDCCH) and a number of CCEs in a Control Resource Set (CORESET) of the associated PDCCH; and map the PUCCH to at least one PUCCH interlace based on the PUCCH resource and the first PRB index for the PUCCH.

公开(公告)号：US20230041601A1

公开(公告)日：2023-02-09

申请号：US17439325

申请日：2021-08-04

Applicant: APPLE INC.

Inventor： Sarma V. Vangala ,  Alexander Sirotkin ,  Fangli XU ,  Haijing Hu ,  Naveen Kumar R. Palle Venkata ,  Pavan Nuggehalli ,  Yuqin Chen ,  Zhibin Wu ,  Sethuraman Gurumoorthy ,  Ralf Rossbach

IPC: H04W36/00 ,  H04W36/32 ,  H04W36/30

Abstract: A UE may perform a location-based conditional handover (CHO) based on a region information and size parameter associated with a serving cell of a non-terrestrial network (NTN). In time-based CHO, the UE may perform CHO in response to expiration of a network-configured wait time. Alternatively, the UE may perform CHO by randomly selecting a wait time from a network configured time range. The selection may be randomized using a network provided seed or using a cell Radio Network Temporary Identifier (RNTI) value. In elevation-based CHO, the UE may perform CHO in response to the elevation angle of a satellite being less than a network configured threshold. When the UE is configured with multiple cells of the NTN, and the CHO criteria for two or more of the cells are satisfied, the UE may select a target cell for CHO based on network indicated prioritization of the cells.

公开(公告)号：US20230009163A1

公开(公告)日：2023-01-12

申请号：US17790933

申请日：2021-05-17

Applicant: Apple Inc.

Inventor： Jie Cui ,  Sharad Sambhwani ,  Yang Tang ,  Hong He ,  Dawei Zhang ,  Wei Zeng ,  Haitong Sun ,  Yuchul Kim ,  Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Weidong Yang ,  Zhibin Wu ,  Dirk Nickisch

IPC: H04B1/3827 ,  H04W72/12

Abstract: A wireless network may include a base station and user equipment (UE). The UE may transmit uplink (UL) signals to the base station using a dynamically adjustable maximum UL duty cycle. When the UE identifies that a user is in proximity to the UE, the UE may transmit an indicator to the base station. The indicator may identify that a radio-frequency exposure (RFE) event has occurred and/or a suggested maximum UL duty cycle that would allow the UE to satisfy limits on RFE. The base station may limit a UL grant to the UE so that the UE performs subsequent communications using the suggested maximum UL duty cycle or a different maximum UL duty cycle. Coordinating adjustment of UL duty cycle in this way may allow the UE to meet limits on RFE without requiring the UE to perform maximum transmit power level reductions.

公开(公告)号：US20220377828A1

公开(公告)日：2022-11-24

申请号：US17267310

申请日：2020-02-13

Applicant: Apple Inc.

Inventor： Zhibin Wu ,  Srinivasan Nimmala ,  Longda Xing ,  Vijay Venkataraman ,  Alosious Pradeep Prabhakar ,  Krisztian Kiss ,  Haijing Hu ,  Cahya A. Masputra

IPC: H04W76/25 ,  H04W76/14

Abstract: A service device (e.g., a user equipment (UE), or other network component) can operate generate sidelink communications with peer UE devices based on PC5 unicast link to enable a direct peer-to-peer communication as part of PC5 vehicle-to-everything (V2X) communications. Radio status link detection can be configured based on a keep alive (KA) coordination scheme via the PC5 unicast link to monitor a status of the PC5 unicast link. A KA timer can be configured based on the KA coordination scheme via the PC5 unicast link. The KA coordination scheme is configured to reduce redundant KA requests in the PC5 unicast link to coordinate the direct peer-to-peer communication across the PC5 unicast link.

公开(公告)号：US20220361088A1

公开(公告)日：2022-11-10

申请号：US17441254

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W48/02 ,  H04W4/06 ,  H04W76/11 ,  H04W74/08

Abstract: Provided is a method for a user equipment (UE), comprising: acquiring a notification for participating in an access control process for an multicast/broadcast service (MBS) session; and participating in an access control process for the MBS session by using MBS specific configuration information.

公开(公告)号：US20220361029A1

公开(公告)日：2022-11-10

申请号：US17757307

申请日：2020-12-15

Applicant: APPLE INC.

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

IPC: H04W24/10 ,  H04L5/00 ,  H04B17/318

Abstract: Systems and methods are provided for determining which part or operation of one or more Secondary Cell (SCell) activation process (es) to defer or restart when an attempt to simultaneously perform multiple operations of the one or more SCell activation processes would cause interference. For example, radio frequency (RF) tuning and/or automatic gain control (AGC) settling for an SCell activation may be deferred until after a Hybrid Automatic Repeat Request (HARQ) for the SCell activation is sent by a UE to the SCell. In another example, RF tuning and/or AGC settling corresponding to the activation of a first SCell may be deferred until after RF tuning and/or AGC settling corresponding to the activation of a second SCell is complete.

公开(公告)号：US20220312386A1

公开(公告)日：2022-09-29

申请号：US17437285

申请日：2020-08-05

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Chunxuan Ye ,  Wei Zeng ,  Dawei Zhang ,  Zhibin Wu ,  Haijing Hu

IPC: H04W72/02 ,  H04W72/04 ,  H04L5/00

Abstract: Embodiments are presented herein of processors, systems, and methods for performing cellular sidelink communication using a sidelink control channel with frequency hopping and multi-beam diversity. A first wireless device may receive cellular sidelink control channel configuration information. The cellular sidelink control channel configuration information may indicate a cellular sidelink control channel configuration that includes one or more of frequency hopping or multi-beam diversity. The first wireless device may perform cellular sidelink communication with a second wireless device using the cellular sidelink control channel configuration that includes one or more of frequency hopping or multi-beam diversity.

公开(公告)号：US20220312384A1

公开(公告)日：2022-09-29

申请号：US17437125

申请日：2020-08-05

Applicant: Apple Inc.

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

IPC: H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W72/10 ,  H04L5/00

Abstract: Embodiments are presented herein of apparatuses, systems, baseband processors, and methods for performing vehicle-to-everything sidelink communication. A wireless device receives first control information through a sidelink control channel specifying one or more first time slots for the wireless device to transmit a first acknowledgment message over a sidelink feedback channel. The wireless device transmits second control information through the sidelink control channel specifying one or more second time slots for the wireless device to receive a second acknowledgment message over the sidelink feedback channel. The first and second time slots at least partially overlap, and it is determined whether the first data packet or the second data packet has a higher priority. The acknowledgment message associated with the higher priority data packet is transmitted or received during at least a subset of the overlapping time slots.