公开(公告)号：US20250031159A1

公开(公告)日：2025-01-23

申请号：US18909605

申请日：2024-10-08

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Ralf Rossbach ,  Dawei Zhang ,  Haijing Hu ,  Sarma V. Vangala ,  Murtaza A. Shikari ,  Srinivasan Nimmala

IPC: H04W56/00 ,  H04W76/10 ,  H04W76/30

Abstract: This disclosure relates to techniques for handling timing alignment for configured grant based small data transmissions in inactive mode in a wireless communication system. A wireless device may establish a radio resource control connection with a cellular base station. The wireless device may receive an indication to release the radio resource control connection. The indication to release the radio resource control connection may configure resources for performing uplink transmissions while in the radio resource control inactive mode. A timing advance may be maintained while in the radio resource control inactive mode. An uplink transmission may be performed using resources configured for performing uplink transmissions while in the radio resource control inactive mode. The uplink transmission may be performed using the timing advance.

公开(公告)号：US20250024551A1

公开(公告)日：2025-01-16

申请号：US18903932

申请日：2024-10-01

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Murtaza A. Shikari ,  Dawei Zhang ,  Haijing Hu ,  Srinivasan Nimmala ,  Zhanfeng Jia ,  Sarma V. Vangala ,  Ralf Rossbach

IPC: H04W76/27

Abstract: While in an inactive state, a user equipment (UE) device transmits a message to a base station. The message indicates the UE device's intent to perform transmission and/or reception of user data with the network during the inactive state. The message may include a portion of the user data and/or a buffer status report. The UE device receives a response message that induces a state transition in the UE device. Different state transitions (e.g., to idle, inactive, legacy inactive, connected) may be induced by different types of response message (e.g., release, release with suspend configuration, resume, setup). One particular type of response message causes the UE to stay in the inactive state and enables subsequent user data transmission/reception in the inactive state. The response message may implicitly (or explicitly) indicate that forwarding of the user data to a core network was successful.

公开(公告)号：US12200553B2

公开(公告)日：2025-01-14

申请号：US17593468

申请日：2020-10-22

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Dawei Zhang ,  Fangli Xu ,  Gerhard Kilian Eichiner ,  Haijing Hu ,  Naveen Kumar R. Palle Venkata ,  Zhibin Wu

IPC: H04W36/00 ,  H04W36/36

Abstract: A user equipment (UE) may be configured with information to perform conditional handovers or addition/change of a primary secondary cell (PSCell). The UE receives a first radio resource control (RRC) configuration message from the source cell for conditional handover to the at least one target cell, the first RRC configuration message including conditional handover execution conditions, an RRC configuration and a target cell ID for each one of a list of target cells, performs measurements on the target cells to determine whether any one of the target cells fulfills its corresponding conditional handover execution conditions and, when a first target cell from the list of target cells fulfills its corresponding conditional handover execution conditions, initiates a handover to the first target cell.

公开(公告)号：US12185160B2

公开(公告)日：2024-12-31

申请号：US17437397

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Sarma V Vangala ,  Tarik Tabet ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Murtaza A Shikari ,  Naveen Kumar R Palle Venkata ,  Ralf Rossbach ,  Sreevalsan Vallath ,  Srinivasan Nimmala ,  Wei Zeng

IPC: H04W28/02 ,  H04W72/21 ,  H04W72/23

Abstract: This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A user equipment device (UE) may transmit to abase station (BS) a first buffer status report (BSR) indicating an amount of uplink data buffered by the UE for transmission to the BS, and may subsequently transmit to the BS a first BSR update message indicating that an additional amount of uplink data has been buffered by the UE subsequent to transmission of the first BSR. The first BSR update message may be transmitted prior to expiration of a timer authorizing transmission of a second BSR following the first BSR. The UE may receive from the BS an uplink grant allocating resources for transmission of at least a portion of the uplink data buffered by the UE. The uplink grant may have a size based on the first BSR and the first BSR update message.

公开(公告)号：US12177925B2

公开(公告)日：2024-12-24

申请号：US17442092

申请日：2021-04-13

Applicant: APPLE INC.

Inventor： Zhibin Wu ,  Fangli Xu ,  Birgit Breining ,  Dawei Zhang ,  Haijing Hu ,  Longda Xing ,  Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Yuqin Chen

IPC: H04W76/20 ,  H04L65/1016 ,  H04W8/00 ,  H04W74/0833 ,  H04W76/19 ,  H04W88/04 ,  H04W92/18

Abstract: Systems, apparatus and methods enable layer 2 (L2) relaying optimizations for a remote user equipment (UE) to receive system information (SI) from a relay UE. The relay UE may establish a sidelink communication channel with the remote UE that is in a radio resource control (RRC) idle state, an RRC inactive state, or an out-of-coverage (OOC) state with respect to the base station. The relay UE decodes a relay SI request received through the sidelink communication channel from the first remote UE. The relay SI request indicates requested system information. The Relay UE obtains the requested system information or a subset of the requested system information from a memory device or from the base station and encodes a relay SI response to send to the first remote UE. The relay SI response includes the requested system information or the subset of the requested system information.

公开(公告)号：US12171038B2

公开(公告)日：2024-12-17

申请号：US18464076

申请日：2023-09-08

Applicant: Apple Inc.

Inventor： Sethuraman Gurumoorthy ,  Srirang A Lovlekar ,  Murtaza A. Shikari ,  Srinivasan Nimmala ,  Haijing Hu ,  Fangli Xu ,  Yuqin Chen ,  Longda Xing ,  Xu Ou ,  Li Su ,  Vijay Venkataraman ,  Dawei Zhang ,  Muthukumaran Dhanapal ,  Sree Ram Kodali ,  Srinivas Burugupalli

IPC: H04W76/27 ,  H04W76/28 ,  H04W76/38

Abstract: This disclosure relates to performing implicit radio resource control state transitions in a cellular communication system. A wireless device may establish a radio resource control (RRC) connection with a cellular base station. A data inactivity timer length and a target RRC state for implicit RRC transitions may be determined. A data inactivity timer having the determined data inactivity timer length may be initiated. It may be determined that the data inactivity timer has expired. The wireless device may transition to the target RRC state based at least in part on determining that the data inactivity timer has expired.

公开(公告)号：US20240406729A1

公开(公告)日：2024-12-05

申请号：US18800797

申请日：2024-08-12

Applicant: Apple Inc.

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

IPC: H04W12/08 ,  H04W12/67

Abstract: Techniques discussed herein can facilitate improved security establishment procedures for Vehicle to Everything (V2X) direct connections. Various embodiments are employable at or comprise User Equipment, and can initiate and/or receive V2X security establishment connections wherein a receiving UE can reject the connection based on the initiating UE's capabilities/policy and/or the initiating UE can make the final decision regarding the connection based at least on receiving security policy and capability information from the receiving UE.

公开(公告)号：US12144048B2

公开(公告)日：2024-11-12

申请号：US17877601

申请日：2022-07-29

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Wei Zeng ,  Yakun Sun ,  Yuchul Kim

IPC: H04W76/19 ,  H04W8/24 ,  H04W72/1268 ,  H04W72/23 ,  H04W74/0833 ,  H04W76/18

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to transmit an indication of a link failure on a secondary cell. The indication may be transmitted on resources selected based on one or more conditions. One or more priority rules may be used to resolve collisions. The UE may further make an assumption of a beam or beams to use for communications with the secondary cell following the link failure and prior to receiving an indication from the network of a selected beam.

公开(公告)号：US12143978B2

公开(公告)日：2024-11-12

申请号：US17439094

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Fangli Xu ,  Sarma V Vangala ,  Sethuraman Gurumoorthy ,  Yuqin Chen ,  Murtaza A Shikari ,  Zhibin Wu ,  Haitong Sun ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Haijing Hu ,  Hong He ,  Weidong Yang ,  Oghenekome Oteri ,  Chunxuan Ye ,  Chunhai Yao ,  Jie Cui ,  Yang Tang ,  Srirang A Lovlekar

IPC: H04W72/121 ,  H04W68/02 ,  H04W72/1273 ,  H04W72/23

Abstract: Apparatuses, systems, and methods for PDCCH enhancements for group-based paging indications. A user equipment device may be configured to receive, from a network, an indication of a paging occasion via a PG-RNTI and/or via at least 6 bits of a DCI. A value of the PG-RNTI may be associated with the paging occasion as well as a set of UEs, including the UE. The UE may be configured to monitor the paging occasion based on the value of the PG-RNTI and receive, during the paging occasion, a paging indication via at least six bits of a DCI, where each bit of the at least six bits may indicate a paging indication for a particular set of UEs and the particular set of UEs may be a subset of the set of UEs. The UE may also be configured to, in response to determining that the UE has a paging message, decode a corresponding PDSCH.

公开(公告)号：US20240349397A1

公开(公告)日：2024-10-17

申请号：US18755343

申请日：2024-06-26

Applicant: APPLE INC.

Inventor： Zhibin Wu ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng ,  Yuqin Chen

IPC: H04W76/28 ,  H04W92/10 ,  H04W92/18

CPC classification number: H04W76/28 ,  H04W92/10 ,  H04W92/18

Abstract: SL-DRX involves both Uu and PC5 interfaces. For an RRC_CONNECTED UE (also referred to as a connected mode UE, or simply connected UE), several SL-DRX enhancements are described in this disclosure to trigger SL DRX and share configurations. Alignment of SL-DRX alignment with Uu-DRX (referred to as Uu/SL DRX alignment or simply alignment) is also described, as an optional feature (since not all schedules can temporally align).