公开(公告)号：US20190313350A1

公开(公告)日：2019-10-10

申请号：US16373504

申请日：2019-04-02

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Wei Zeng ,  Tianyan Pu ,  Haitong Sun ,  Jia Tang ,  Dawei Zhang ,  Sami M. Almalfouh ,  Zhu Ji ,  Johnson O. Sebeni

IPC: H04W56/00 ,  H04W72/12 ,  H04W16/14

Abstract: Apparatuses, systems, and methods for performing timing synchronization between a base station and a user equipment device within an unlicensed spectrum band. In some scenarios, beamforming tracking may also be performed. Upon determining that a transmission medium within the unlicensed spectrum band is available for transmission, a base station may transmit a plurality of synchronization signal blocks (SSBs), or a plurality of copies of one SSB, with associated remaining minimum system information (RMSI) blocks, within a single time instance within a SSB burst window. The SSBs may be transmitted at different frequency positions and according to distinct beamforming configurations. The SSBs and RMSI blocks may be configured such that a receiving user equipment device may determine the time-domain, and optionally the frequency-domain, position of the SSB and RMSI within the SSB burst window, to allow timing synchronization and optionally beamforming tracking.

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：US20250159631A1

公开(公告)日：2025-05-15

申请号：US18834916

申请日：2022-02-09

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Huaning Niu ,  Chunhai Yao ,  Wei Zeng ,  Chunxuan Ye ,  Haitong Sun ,  Fangli Xu ,  Dawei Zhang ,  Seyed Ali Akbar Fakoorian

IPC: H04W56/00 ,  H04W72/232 ,  H04W74/0833

Abstract: This disclosure relates to techniques for managing multiple timing advances in a wireless communication system. A wireless device may establish wireless links with a first transmission reception point and a second transmission reception point. The wireless device may receive a timing advance command. The wireless device may determine whether the timing advance command is associated with the first TRP or the second TRP.

公开(公告)号：US12294455B2

公开(公告)日：2025-05-06

申请号：US17593463

申请日：2020-09-15

Applicant: Apple Inc.

Inventor： Weidong Yang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Huaning Niu ,  Jie Cui ,  Manasa Raghavan ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Sigen Ye ,  Wei Zeng ,  Yang Tang ,  Yushu Zhang

IPC: H04L1/00 ,  H04L25/02 ,  H04W24/10

Abstract: A base station is configured to receive channel state information (CSI) from a user equipment (UE). The base station transmits configuration information including one or more interference measurement resources (IMRs) allocated for measurement by the UE, receives a reference CSI report from the UE, receives a new CSI report including interference and noise power fluctuation feedback from the UE and selects a modulation and coding scheme (MCS) for the UE based on at least the interference and noise power fluctuation feedback and the reference CSI report.

公开(公告)号：US20250142364A1

公开(公告)日：2025-05-01

申请号：US18885118

申请日：2024-09-13

Applicant: Apple Inc.

Inventor： Manasa Raghavan ,  Jie Cui ,  Qiming Li ,  Yang Tang ,  Xiang Chen ,  Haitong Sun

IPC: H04W24/02 ,  H04L5/00 ,  H04W72/21

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing mechanisms for reducing interruption lengths for Sounding Reference Signal (SRS) antenna switching. For example, some aspects of this disclosure relate to a user equipment (UE) configured to determine one or more symbols during which the UE is configured to perform an antenna switch for a Sounding Reference Signal (SRS) transmission. The UE is further configured to generate an indication message including an indication of the one or more symbols and transmit, using the transceiver, the indication message to the base station.

公开(公告)号：US20250133592A1

公开(公告)日：2025-04-24

申请号：US18835546

申请日：2022-02-11

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Qiming Li ,  Manasa Raghavan ,  Xiang Chen ,  Dawei Zhang ,  Hong He ,  Yuanye Wang ,  Haitong Sun ,  Chunhai Yao

IPC: H04W74/0816 ,  H04W74/08 ,  H04W76/20

Abstract: Methods, apparatuses, and systems are disclosed for determining prioritization of subsequent small data transmissions (SDTs) and measurement occasions for a UE in inactive mode. The UE may determine that one or more subsequent SDT occasions of an SDT session conflict in time with one or more measurement occasions scheduled during the SDT session. In response, the UE may determine which of the subsequent SDT occasions to utilize or forgo, and which of the measurement occasions to utilize or forgo. The procedure for making such determinations may vary based on the type of measurement occasion involved in the conflict. For example, the procedure may vary based on whether the measurement event pertains to inter-frequency neighbor cell measurement occasions, inter-RAT neighbor cell measurement occasions, intra-frequency neighbor cell measurement occasions, serving cell downlink measurement occasions, and/or serving cell paging occasions.

公开(公告)号：US20250132875A1

公开(公告)日：2025-04-24

申请号：US18835633

申请日：2022-03-25

Applicant: Apple Inc.

Inventor： Hong He ,  Seyed Ali Akbar Fakoorian ,  Yushu Zhang ,  Weidong Yang ,  Wei Zeng ,  Sigen Ye ,  Dawei Zhang ,  Haitong Sun ,  Chunxuan Ye ,  Jie Cui

IPC: H04L5/00

Abstract: This disclosure relates to techniques for providing channel state information reference signals for a reduced capability wireless device in a wireless communication system. A wireless device and a cellular base station may establish a wireless link. Channel state information acquisition for a bandwidth part may be configured for the wireless device. The wireless device may determine channel state information reference signal resources for the channel state information acquisition. The channel state information reference signal resources may include multiple resource elements per antenna port per physical resource block for the bandwidth part. The wireless device may perform channel state information acquisition using the channel state information reference signal resources.

公开(公告)号：US12279285B2

公开(公告)日：2025-04-15

申请号：US17438157

申请日：2021-04-06

Applicant: Apple Inc.

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

IPC: H04W72/51 ,  H04L5/00 ,  H04W48/12 ,  H04W72/0446 ,  H04W72/23 ,  H04W72/232

Abstract: This disclosure relates to techniques for improving capability signaling and performing search space set switching, particularly with large sub-carrier spacings, as in high frequency ranges. In various scenarios, a user equipment (UE) device may signal its capability to perform multi-slot PDCCH monitoring and/or single-slot PDCCH monitoring, e.g., at various sub-carrier spacings, for various PDCCH/DCI types, etc. Various technical difficulties in this area are addressed, including increasing flexibility and versatility in capability signaling, overbooking, signaling and timing of search space set switching, and beam sweeping transmission of DCI Format 2_0, among others.

公开(公告)号：US20250119903A1

公开(公告)日：2025-04-10

申请号：US18962791

申请日：2024-11-27

Applicant: APPLE INC.

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

IPC: H04W72/0446 ,  H04L1/08

Abstract: The present disclosure proposes configuration for TB processing over multi-slot, particularly Transmission Block over multi-slot (TBoMS) transmission. Specifically, such configuration for TBoMS may relate to at least one of size determination for TBoMS, scheduling for TBoMS transmission, resources determination and allocation for TBoMS transmission, and so on, and corresponding information related to such configuration can be acquired, set or determined appropriately, so that the TB processing over multi-slot can be performed accordingly.

公开(公告)号：US12273908B2

公开(公告)日：2025-04-08

申请号：US17756855

申请日：2021-06-07

Applicant: Apple Inc.

Inventor： Weidong Yang ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Huaning Niu ,  Oghenekome Oteri ,  Ralf Rossbach ,  Sigen Ye ,  Wei Zeng

IPC: H04W72/543 ,  H04L1/00 ,  H04L1/1812 ,  H04L1/1829

Abstract: A transmitting device is configured to transmit, to a second device, a medium access control (MAC) protocol data unit (PDU) comprising a plurality of MAC subPDUs, each MAC subPDU comprising at least one of a subheader, a MAC service data unit (SDU) or a MAC control element (CE), receive, from the second device, feedback indicating that the MAC PDU was received incorrectly, determine that a partial transmission scheme criteria is satisfied, transmit, to the second device, an indication that the partial transmission scheme is to be used to retransmit the MAC PDU and retransmit, to the second device, the MAC PDU using the partial transmission scheme.