公开(公告)号：US11792881B2

公开(公告)日：2023-10-17

申请号：US17447831

申请日：2021-09-16

Applicant: APPLE INC.

Inventor： David Öhmann ,  Hongbo Yan ,  Amir Farajidana ,  Dietmar Gradl ,  Sami M. Almalfouh ,  Shengshan Cui

IPC: H04W76/28 ,  H04L5/00 ,  H04W52/02 ,  H04W56/00 ,  H04W72/0453

CPC classification number: H04W76/28 ,  H04L5/0048 ,  H04W52/0235 ,  H04W56/001 ,  H04W72/0453

Abstract: Systems and methods are provided for a user equipment (UE) to perform frequency offset (FO) delta tracking. For an anchor component carrier (CC), the UE wakes up to perform tracking updates on a plurality of successive DRX cycles. For the non-anchor CC, the UE determines a minimum update interval Δtupd, and schedules wake-ups on a first subset of the plurality of successive DRX cycles based on the minimum update interval Δtupd. For the first subset of the plurality of successive DRX cycles with scheduled wake-ups, the UE performs the tracking updates on the non-anchor CC and updates an FO delta between the anchor CC and the non-anchor CC. For a second subset of the plurality of successive DRX cycles without the scheduled wake-ups on the non-anchor CC, the UE applies the FO delta to correct for a frequency error.

公开(公告)号：US20230362852A1

公开(公告)日：2023-11-09

申请号：US18119105

申请日：2023-03-08

Applicant: Apple Inc.

Inventor： Qunfeng He ,  Amir Farajidana ,  Dietmar Gradl ,  Hongbo Yan

IPC: H04L27/26 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04W56/0015 ,  H04L5/0057 ,  H04L27/2657

Abstract: Disclosed are methods, systems, and computer-readable medium to perform operations including: determining time or frequency synchronization information for each of one or more candidate synchronization signal blocks (SSBs) for a secondary cell (SCell) before receipt of a transmission configuration indication (TCI) state activation command or a SCell activation command, receiving the TCI state activation command, and based on the received TCI state activation command, receiving at least one signal from the SCell using the determined time or frequency synchronization information for one of the one or more candidate SSBs.

公开(公告)号：US20230087707A1

公开(公告)日：2023-03-23

申请号：US17881480

申请日：2022-08-04

Applicant: Apple Inc.

Inventor： Hongbo Yan ,  Amir Farajidana ,  Christian Hofmann ,  Dietmar Gradl

IPC: H04W56/00 ,  H04W76/28 ,  H04W24/10 ,  H04B7/08

Abstract: The present application relates to scheduling SSB measurements on SSB beams. In an example, a base station can transmit SSBs on SSB beams that form a serving cell. Depending on an SSB measurement on one of the SSB beams, a UE can schedule an additional SSB measurement on this SSB beam only or schedule SSB measurements on the different SSB beams.

公开(公告)号：US20240072973A1

公开(公告)日：2024-02-29

申请号：US18260597

申请日：2022-01-07

Applicant: Apple Inc.

Inventor： Huaning Niu ,  Hongbo Yan ,  Dawei Zhang ,  Seyed Ali Akbar Fakoorian ,  Oghenekome Oteri ,  Sigen Ye ,  Weidong Yang ,  Wei Zeng ,  Hong He ,  Haitong Sun

IPC: H04L5/00 ,  H04W72/232

CPC classification number: H04L5/0053 ,  H04L5/0094 ,  H04W72/232

Abstract: The present application relates to devices and components including apparatus, systems, and methods to provide adaptive physical downlink control channel (PDCCH) monitoring. In particular, a unified signaling technique for adaptive PDCCH search space monitoring is descried. This signaling can indicate either one or a combination of the switching and skipping. In an example, the signaling includes multiple parts. In a first part, radio resource control (RRC) signaling is sent from the network to the device to configure the device for switching only, skipping only, or switching and skipping. In a second part, first DCI is sent from the network to the device to indicate the particular PDCCH monitoring configuration to use for the PDCCH search space monitoring. Thereafter, network sends second DCI in the relevant PDCCH search space, where this second DCI schedules traffic. The device performs blind decoding to determine the second DCI in order to exchange the traffic.

公开(公告)号：US20230018496A1

公开(公告)日：2023-01-19

申请号：US17598216

申请日：2020-04-08

Applicant: Apple Inc.

Inventor： Jie Cui ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Hongbo Yan ,  Yang Tang ,  Yushu Zhang

IPC: H04W72/04 ,  H04L5/00

Abstract: A method and apparatus of a device that switches bandwidth parts for a user equipment device and a base station is described. In an exemplary embodiment, the device receives an indication to switch to the bandwidth part for the user equipment on the wireless link from the base station. In addition, the device switches to the new bandwidth part for the user equipment. The device further signals that the switching to the new bandwidth part has occurred in a time period smaller than a predefined time period. The deice additionally communicates information on the wireless link using the new bandwidth part.

公开(公告)号：US12137068B2

公开(公告)日：2024-11-05

申请号：US17598216

申请日：2020-04-08

Applicant: Apple Inc.

Inventor： Jie Cui ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Hongbo Yan ,  Yang Tang ,  Yushu Zhang

IPC: H04L5/00 ,  H04W72/0446

Abstract: A method and apparatus of a device that switches bandwidth parts for a user equipment device and a base station is described. In an exemplary embodiment, the device receives an indication to switch to the bandwidth part for the user equipment on the wireless link from the base station. In addition, the device switches to the new bandwidth part for the user equipment. The device further signals that the switching to the new bandwidth part has occurred in a time period smaller than a predefined time period. The deice additionally communicates information on the wireless link using the new bandwidth part.

公开(公告)号：US12096365B2

公开(公告)日：2024-09-17

申请号：US17593597

申请日：2020-10-14

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Hong He ,  Hongbo Yan ,  Huaning Niu ,  Oghenekome Oteri ,  Shengshan Cui ,  Sigen Ye ,  Wei Zeng ,  Yushu Zhang

IPC: H04W52/00 ,  H04L1/00 ,  H04W52/02 ,  H04W68/00 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W52/0232 ,  H04L1/0003 ,  H04W68/005 ,  H04W72/0446 ,  H04W72/23

Abstract: A wake up signal scheme between a network and a user equipment (UE) operating in a Discontinuous Reception (DRX) state. The UE monitors a wake up signal (WUS) occasion to determine whether a WUS is received during the WUS occasion, when the WUS is received, determines whether the WUS identifies the UE, when the WUS is received and identifies the UE, monitors an OnDuration of a Discontinuous Reception (DRX) cycle corresponding to the WUS and when the WUS is not received or the WUS does not identify the UE, remains in a sleep state during the OnDuration corresponding to the WUS.

公开(公告)号：US12035238B2

公开(公告)日：2024-07-09

申请号：US17593516

申请日：2020-10-14

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Hong He ,  Hongbo Yan ,  Huaning Niu ,  Shengshan Cui ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang

IPC: H04W76/28 ,  H04W52/02 ,  H04W76/27

CPC classification number: H04W52/0229 ,  H04W76/27 ,  H04W76/28

Abstract: A user equipment (UE) receives reference signals during a discontinuous reception (DRX) cycle to perform frequency and timing tracking or automatic gain control (AGC). The UE receives configuration information corresponding to a reference signal that is to be transmitted to a user equipment (UE) when the UE is in a first operating state, receives the reference signal from a cell of a network when the UE is in the first operating state, performs one of frequency and timing tracking or automatic gain control (AGC) using the reference signal and receives a signal from the cell during a time window that the UE is scheduled to utilize an active mode of data exchange processing.

公开(公告)号：US20240106617A1

公开(公告)日：2024-03-28

申请号：US17935045

申请日：2022-09-23

Applicant: APPLE INC.

Inventor： Qunfeng He ,  Dietmar Gradl ,  Jie Cui ,  Hongbo Yan ,  Amir Farajidana ,  Yang Tang

IPC: H04L5/00 ,  H04W24/08

CPC classification number: H04L5/0096 ,  H04L5/0051 ,  H04W24/08

Abstract: Systems and methods provide multiple cell activation. A user equipment (UE) receives, from a wireless network, a command to activate multiple cells simultaneously. In response, the UE initiates cell activation procedures for the multiple cells. The cell activation procedures include waiting for an active transmission configuration indicator (TCI) indication. The UE monitors for the active TCI indication on any of the multiple cells. In response to receiving the active TCI indication on a first cell of the multiple cells, the UE determines one or more second cells of the multiple cells that share a same spatial relationship with the first cell according to one or more predetermined rule, and autonomously continues the cell activation procedures for the first cell and the one or more second cells.

公开(公告)号：US20230079512A1

公开(公告)日：2023-03-16

申请号：US17447831

申请日：2021-09-16

Applicant: APPLE INC.

Inventor： David Öhmann ,  Hongbo Yan ,  Amir Farajidana ,  Dietmar Gradl ,  Sami M. Almalfouh ,  Shengshan Cui

IPC: H04W76/28 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04 ,  H04W52/02

Abstract: Systems and methods are provided for a user equipment (UE) to perform frequency offset (FO) delta tracking. For an anchor component carrier (CC), the UE wakes up to perform tracking updates on a plurality of successive DRX cycles. For the non-anchor CC, the UE determines a minimum update interval Δtupd, and schedules wake-ups on a first subset of the plurality of successive DRX cycles based on the minimum update interval Δtupd. For the first subset of the plurality of successive DRX cycles with scheduled wake-ups, the UE performs the tracking updates on the non-anchor CC and updates an FO delta between the anchor CC and the non-anchor CC. For a second subset of the plurality of successive DRX cycles without the scheduled wake-ups on the non-anchor CC, the UE applies the FO delta to correct for a frequency error.