公开(公告)号：US20190306793A1

公开(公告)日：2019-10-03

申请号：US16442730

申请日：2019-06-17

Applicant: Apple Inc.

Inventor： Tianyan Pu ,  Sai Sravan Bharadwaj Karri ,  Wei Zhang ,  Swaminathan Balakrishnan ,  Xiantao Sun ,  Beibei Wang ,  Manish G. Vemulapalli ,  Jia Tang ,  Sami M. Almalfouh ,  Zhu Ji ,  Sachin J. Sane

IPC: H04W52/02 ,  H04B7/0456

Abstract: This disclosure relates to techniques for opportunistically depowering receiver chains of a wireless device. Based on control information, a device may determine whether the current number of active receiver chains can be reduced while maintaining a target achievable code rate for a period of data reception associated with the control information. Additionally, the device may generate and use a lookup table to determine whether to depower receiver chains, and which receiver chains to depower.

公开(公告)号：US20190281652A1

公开(公告)日：2019-09-12

申请号：US16295517

申请日：2019-03-07

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Yuchul Kim ,  Junsung Lim ,  Haitong Sun ,  Wei Zeng ,  Sami M. Almalfouh ,  Yang Li ,  Zhu Ji ,  Dawei Zhang ,  Johnson O. Sebeni

IPC: H04W76/28 ,  H04W72/04 ,  H04W76/25 ,  H04W24/10

Abstract: Apparatuses, systems, and methods for a base station to perform a method construct dynamic hierarchical sub-configurations of bandwidth parts (BWPs) for use in a connected mode discontinuous reception (CDRX) communication session with a user equipment (UE) device. The base station may configure a first BWP at a baseband frequency associated with the CDRX communication session as a default BWP, a second BWP with a wider bandwidth than the first BWP as a transmission BWP, and one or more third BWPs as resting BWPs. The transmission BWP and the one or more resting BWPs may be configured to periodically override the default BWP as the active BWP for a predetermined number of CDRX cycles. The transmission BWP may be utilized, when activated to perform data transmission by UE device, and the one or more resting BWPs may be utilized, when activated, for performing channel measurements.

公开(公告)号：US10361887B2

公开(公告)日：2019-07-23

申请号：US15792671

申请日：2017-10-24

Applicant: Apple Inc.

Inventor： Jahshan A. Bhatti ,  Brent M. Ledvina ,  Robert W. Brumley ,  Wei Zhang ,  Chiu Ngok E. Wong

IPC: H04L25/02 ,  H04B17/30 ,  G01S5/02 ,  G01S13/76 ,  H04B17/364 ,  G01S11/02 ,  H04W84/12

Abstract: The subject system aggregates, or stitches, multiple component channel estimates to generate an aggregated wideband channel estimate that can be used to determine more accurate time of arrival estimations than those determinable from the individual component channel estimates. The subject system also provides for multipath detection on a single channel or an aggregated channel that may be used to facilitate an accurate time of arrival estimation. For example, information derived from the multipath detection may be used to supplement and/or enhance a time of arrival estimation algorithm. The subject system also provides a sounding protocol that allows devices to perform one or more signal exchanges to facilitate generating the aggregated wideband channel estimate and/or to facilitate performing the multipath detection. The protocol allows the devices to perform signal exchanges over one or more channels within a coherence time, and also provides for security mechanisms as well as failure recovery.

公开(公告)号：US20180368153A1

公开(公告)日：2018-12-20

申请号：US15969653

申请日：2018-05-02

Applicant: Apple Inc.

Inventor： Yang Li ,  Wei Zeng ,  Zhu Ji ,  Beibei Wang ,  Jia Tang ,  Yuchul Kim ,  Haijing Hu ,  Dawei Zhang ,  Xiangying Yang ,  Sami M. Almalfouh ,  Johnson O. Sebeni ,  Wei Zhang ,  Tianyan Pu

IPC: H04W72/12

Abstract: Apparatuses, systems, and methods for a wireless device to perform simultaneous uplink activity for multiple RATs in the same carrier using frequency division multiplexing. The wireless device may establish a first wireless link with a first base station according to a first radio access technology (RAT) and a second wireless link with a second base station according to a second RAT. The first base station may provide a first cell operating in a first system bandwidth and the second base station may provide a second cell operating in a second system bandwidth. The wireless device may determine whether the wireless device has uplink activity scheduled according to both the first RAT and the second RAT. If so, the wireless device may perform uplink activity for both the first RAT and the second RAT in the first system bandwidth using frequency division multiplexing.

公开(公告)号：US12289735B2

公开(公告)日：2025-04-29

申请号：US17655252

申请日：2022-03-17

Applicant: APPLE INC.

Inventor： Huaning Niu ,  Dawei Zhang ,  Farhan Aziz ,  Haitong Sun ,  Hong He ,  Navid Ehsan ,  Sigen Ye ,  Wei Zeng ,  Wei Zhang ,  Weidong Yang

IPC: H04W72/23 ,  H04L5/00 ,  H04W76/28

Abstract: A wireless communication system may adapt physical downlink control channel (PDCCH) monitoring behaviors using downlink control information (DCI). The change in monitoring behavior may be skipping or switching. The timeline for applying switching or skipping may be applied after a reference point and a processing time. In some embodiments, the processing time may be either based on UE processing, network processing, or a combination.

公开(公告)号：US12273898B2

公开(公告)日：2025-04-08

申请号：US17765478

申请日：2021-04-05

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Dawei Zhang ,  Wei Zeng ,  Yushu Zhang ,  Hong He ,  Chunxuan Ye ,  Huaning Niu ,  Jie Cui ,  Wei Zhang

IPC: H04W72/232 ,  H04W72/12

Abstract: Techniques described herein may include a special scheduling cell (sSCell) provided for dynamic spectrum sharing (DSS). The sSCell may schedule a primary cell of a master cell group (MCG) or a primary cell of a secondary cell group (SCG). The primary cell may be referred to as a special cell or SpCell. The sSCell may be activated and/or deactivated, enter in or exit from a state of dormancy, and radio link monitoring (RLM), beam failure recovery (BFR), and cell grouping parameters may be provided. Techniques described herein include configuring a UE-specific search space (USS) with non-fallback downlink control information (DCI), USS with fallback DCI, and overall search space for DSS enhancement.

公开(公告)号：US12150116B2

公开(公告)日：2024-11-19

申请号：US18346703

申请日：2023-07-03

Applicant: Apple Inc.

Inventor： Jia Tang ,  Wei Zhang ,  Wei Zeng ,  Haitong Sun ,  Yuchul Kim ,  Ping Wang ,  Sreevalsan Vallath ,  Zhu Ji ,  Dawei Zhang

IPC: H04W72/12 ,  H04W52/02 ,  H04W72/0446 ,  H04W72/1263 ,  H04W72/20 ,  H04W76/27 ,  H04W80/02 ,  H04W88/02

Abstract: A user equipment device may determine whether to power down one or more components based at least on a scheduling parameter that includes an indication of cross-slot scheduling. The device may power down the one or more components prior to decoding control information during a slot for which the scheduling parameter indicates that cross-slot scheduling is in place.

公开(公告)号：US12143864B2

公开(公告)日：2024-11-12

申请号：US18147377

申请日：2022-12-28

Applicant: Apple Inc.

Inventor： Alosious Pradeep Prabhakar ,  Han Pu ,  Krisztian Kiss ,  Mohammed Sadique ,  Rohit R. Matolia ,  Srinivasan Nimmala ,  Sriram Subramanian ,  Vijay Venkataraman ,  Wei Zhang

IPC: H04W28/24 ,  H04W24/08 ,  H04W28/02 ,  H04W76/14

Abstract: Disclosed are systems, methods, integrated circuits and computer readable storage media for configuring time sensitive communications (TSC). The configuring of the TSC includes monitoring, by a user plane function (UPF), a source and destination of packets in a first protocol data unit (PDU) session of a first user equipment (UE) and in a second PDU session of a second UE, pairing a first device side TSN translator (DS-TT) port of the first UE with a second DS-TT port of the second UE when the first PDU session and the second PDU session are served by the same UPF, wherein the pairing is based on the monitoring of the first and second PDU sessions and when the first DS-TT and second DS-TT ports are paired, communicating the packets between the first UE and the second UE in a UE-UE communication without traversing the TSN.

公开(公告)号：US12137451B2

公开(公告)日：2024-11-05

申请号：US17441593

申请日：2021-01-15

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Dawei Zhang ,  Wei Zeng ,  Yushu Zhang ,  Jia Tang ,  Amir Farajidana ,  Wei Zhang

IPC: H04W72/1273 ,  H04L1/1812 ,  H04W72/232

Abstract: Apparatuses, systems, and methods for providing downlink control for multi-TRP transmission. A network-side device may provide a downlink control information transmission to a wireless device scheduling downlink transmission to the wireless device from multiple transmission reception points. The downlink transmission may relate to Hybrid automatic repeat request process and/or system information transmission. And the downlink control information may include information about scheduling of HARQ processes from different TRPs, and/or information about scheduling of SI transmission from different TRPs. The wireless device may receive the downlink transmissions from the plurality of transmission reception points in accordance with the downlink control information.

公开(公告)号：US12082017B2

公开(公告)日：2024-09-03

申请号：US17593407

申请日：2020-08-04

Applicant: Apple Inc.

Inventor： Weidong Yang ,  Amir Farajidana ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Keith W. Saints ,  Linbo Li ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Wei Zhang ,  Yang Tang ,  Yushu Zhang

IPC: H04W24/08 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04W24/08 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/51

Abstract: A base station of a network provides a user equipment (UE) with information relating to monitoring a Physical Downlink Control Channel (PDCCH) of multiple component carrier (CCs) in a carrier aggregation (CA) scheme. The base station configures a first CC and a second CC of a CA combination for a user equipment (UE) and provides the UE with information for the CA combination, wherein the information comprises an indication whether the first CC and the second CC are collocated.