公开(公告)号：US20230156542A1

公开(公告)日：2023-05-18

申请号：US17916918

申请日：2020-04-16

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Jie Cui ,  Yang Tang ,  Zhibin Wu

IPC: H04W36/00 ,  H04L5/00

CPC classification number: H04W36/0088 ,  H04L5/0096

Abstract: A system for determining and reporting user equipment (UE) time gap requirement information for performing a measurement on a reference signal provided by a target base station. A UE receives a radio resource control (RRC) message from a current base station to modify a current RRC connection. The RRC configuration message may comprise sub carrier spacing (SCS) information of one or more target frequency bands of at least one target base station. The UE may then determine gap information based at least in part on the received SCS information of the one or more target frequency bands. The gap information may indicate whether a gap is needed in performing measurements on a reference signal transmitted at each of the one or more target frequency bands. The UE then transmits the gap information to the current base station.

公开(公告)号：US20230102755A1

公开(公告)日：2023-03-30

申请号：US17593229

申请日：2021-03-31

Applicant: APPLE INC.

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

IPC: H04W76/27 ,  H04W76/30 ,  H04W8/02

Abstract: Systems and methods for small data transmissions (SDTs) between a user equipment (UE) and a network are disclosed herein. In some embodiments, the UE determines whether to perform an SDT procedure by comparing its own mobility state to an SDT mobility state condition provided by the network. The UE may also determine whether to perform the SDT procedure by comparing the size of user plane (UP) data to be sent with the SDT procedure to an SDT mobility-based data amount threshold provided by the network. Upon entering an RRC_INACTIVE state, the UE may start a validity timer relative to any such SDT mobility state condition and/or SDT mobility-based data amount threshold, and invalidate these once the validity timer expires. In some disclosed embodiments, the UE reports its determined mobility state to the network during an SDT procedure so that the network can accordingly select configuration parameters for SDT procedures.

公开(公告)号：US20230025902A1

公开(公告)日：2023-01-26

申请号：US17598206

申请日：2020-04-08

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Jie Cui ,  Dawei Zhang ,  Hong He ,  Murtaza A. Shikari ,  Yang Tang ,  Kim Yuchul ,  Zhibin Wu

IPC: H04W36/00 ,  H04L5/00 ,  H04W72/04

Abstract: Methods and apparatus are disclosed for a UE and its serving base station to coordinate the activation and deactivation of measurement gaps for performing positioning measurements by the UE using target positioning reference signals (PRS) during bandwidth part (BWP) switching. The UE may be configured by the serving base station to have dedicated measurement gaps. The UE determines if a legacy measurement gap used for mobility measurements or a scheduled data transmission collides with the dedicated measurement gaps. If there is a collision, the UE performs the mobility measurement using the legacy measurement gap or transmits the scheduled data. If there is no collision, the UE receives the PRS to perform the positioning measurement during the dedicated measurement gaps. In one embodiment, based on the status of the active BWP and the target PRS, the UE or the base station may activate or deactivate measurement gaps for the positioning measurements.

公开(公告)号：US20220394677A1

公开(公告)日：2022-12-08

申请号：US17764481

申请日：2019-09-29

Applicant: Apple Inc.

Inventor： Zhibin Wu ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Murtaza A. Shikari ,  Clive E. Rodgers ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Vijay Venkataraman ,  Longda Xing ,  Yuqin Chen

IPC: H04W72/02 ,  H04W36/00 ,  H04W72/04

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a C-V2X capable wireless device configured to operate according to a first sidelink mode where communication resources are allocated by a network and a second sidelink mode where communication resources are autonomously allocated by the wireless device. The wireless device detects a change in a coverage scenario associated with the first sidelink mode; performs resource sensing for the second sidelink mode; and based at least in part on detecting the change in the coverage scenario, transmits first communications using the second sidelink mode, wherein resources for transmitting the first communications are allocated based at least in part on the resource sensing.

公开(公告)号：US20220394518A1

公开(公告)日：2022-12-08

申请号：US17337321

申请日：2021-06-02

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Yushu Zhang ,  Fangli Xu ,  Qiming Li ,  Chunhai Yao ,  Gurunadha Rao Kota ,  Zhibin Wu ,  Haijing Hu ,  Dawei Zhang ,  Panagiotis Botsinis ,  Christian Hofmann ,  Sameh M. Eldessoki

IPC: H04W24/08 ,  H04W56/00 ,  H04B7/06 ,  H04L1/16

Abstract: When a user equipment (UE) encounters a radio link failure condition, the UE may transmit a radio link failure report to a network. The report may include information defining the radio link monitoring (RLM) resources of a current RLM configuration. The information may take the form of a resource bitmap or a list of resource identifiers/indices. The network may use the information (and radio resource management measurements) to determine whether the radio link failure occurred due to misconfiguration of RLM resources for the UE. In cases where the network does not provide RLM configuration, the UE may omit the bitmap (or list), or populate the bitmap with all zeros, or populate the bitmap (or list) according to a currently active Transmission Configuration Indication (TCI) state, which is indicated by downlink control information (DCI).

公开(公告)号：US20220312535A1

公开(公告)日：2022-09-29

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 ,  H04W76/19 ,  H04W74/08 ,  H04W8/00 ,  H04L65/1016

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：US20220312387A1

公开(公告)日：2022-09-29

申请号：US17437323

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 ,  H04W72/14 ,  H04L5/00

Abstract: Embodiments are presented herein of apparatuses, systems, baseband processors, and methods for performing uplink communications and 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 sidelink acknowledgment message over a sidelink feedback channel. The wireless device receives a resource grant through a downlink control channel, wherein the resource grant specifies one or more second time slots for the wireless device to transmit an uplink transmission over an uplink channel. The first and second time slots at least partially overlap, and it is selectively determined whether to transmit the sidelink acknowledgment message or the uplink transmission during the overlapping time slots.

公开(公告)号：US20220312376A1

公开(公告)日：2022-09-29

申请号：US17438147

申请日：2020-10-22

Applicant: Apple Inc.

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

IPC: H04W68/06 ,  H04W68/04 ,  H04W68/02

Abstract: This disclosure relates to a relay user equipment device (UE) assisting one or more remote UEs in performing a radio access network notification area (RNA) update procedure in a cellular communication system. The relay UE establishes a first relay connection with a first remote device. The first relay connection relays communications between the first remote device and a network. The relay UE transmits a first message to the network to initiate the RNA update procedure for the first remote device, receives an acknowledgment message from the network including updated connection information for the first remote device, and transmits the updated connection information to the first remote device.

公开(公告)号：US20220312312A1

公开(公告)日：2022-09-29

申请号：US17593122

申请日：2020-04-08

Applicant: APPLE INC.

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

IPC: H04W52/02 ,  H04W76/27 ,  H04W24/08

Abstract: Apparatuses, systems, and methods are provided for managing UE upgrade requests using UE assistance information (UAI), including network controlled upgrade support, UE initiated upgrade requests, and/or budget based upgrade requests.

公开(公告)号：US20220303967A1

公开(公告)日：2022-09-22

申请号：US17442123

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: H04W72/04 ,  H04B7/0408 ,  H04B1/713

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for configuring a cellular sidelink control channel with frequency hopping and multi-beam diversity. A cellular base station may select a cellular sidelink control channel configuration that includes one or more of frequency hopping or multi-beam diversity. The cellular base station may provide cellular sidelink control channel configuration information to a wireless device. The cellular sidelink control channel configuration information may indicate the selected cellular sidelink control channel configuration that includes one or more of frequency hopping or multi-beam diversity.