公开(公告)号：US11659422B2

公开(公告)日：2023-05-23

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 ,  H04L1/16 ,  H04B7/06 ,  H04W56/00 ,  H04L1/1607

CPC classification number: H04W24/08 ,  H04B7/0626 ,  H04L1/1614 ,  H04W56/001

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：US11658769B2

公开(公告)日：2023-05-23

申请号：US17091194

申请日：2020-11-06

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Wei Zeng ,  Weidong Yang ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen

IPC: H04L1/00 ,  H04L5/00 ,  H04W76/15

CPC classification number: H04L1/0038 ,  H04L5/0023 ,  H04L5/0092 ,  H04W76/15

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and/or cellular network to perform downlink control information (DCI) mode signaling and control resource set (CORESET) selection. A DCI mode may be signaled based on a predefined rule, media access control (MAC) control element (CE), and/or group based beam reporting. One or more CORESETs may be selected based on configuration of an active bandwidth part (BWP), CORESET identifier, higher layer index, periodicity, type of search space, and/or MAC CE.

公开(公告)号：US20230156824A1

公开(公告)日：2023-05-18

申请号：US17441752

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jia Tang ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W74/08 ,  H04L1/1812

CPC classification number: H04W74/0858 ,  H04L1/1812

Abstract: An evaluating user equipment (UE) includes memory and one or more processors communicatively coupled to the memory. The one or more processor are configured to schedule periodic resources with one or more configured feedback-based collision detection parameters, and perform a periodic transmission to one or more receiving UEs. The one or more processors are also configured to collect negative acknowledgement (NACK) statistics for the periodic transmission according to the configured feedback-based collision detection parameters, and selectively perform corrective action based on the collected NACK statistics and at least one of the configured feedback-based collision detection parameters.

公开(公告)号：US20230156816A1

公开(公告)日：2023-05-18

申请号：US17441528

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Chunhai Yao ,  Dawei Zhang ,  Haijing Hu ,  Longda Xing ,  Murtaza A. Shikari ,  Sarma V. Vangala ,  Srinivasan Nimmala ,  Wei Zeng

IPC: H04W74/08 ,  H04W76/20 ,  H04W56/00

CPC classification number: H04W74/0841 ,  H04W76/20 ,  H04W56/004

Abstract: Techniques discussed herein can facilitate inactive state transmissions for a Base Station (BS) via a 4-step or 2-step inactive state RACH process. One example aspect is a BS comprising: communication circuitry; and one or more processors communicatively coupled to the communication circuitry and configured to: receive, via the communication circuitry, a message 1 (Msg1) or a message A (MsgA) preamble based on a Random Access Channel (RACH) configuration for a Radio Resource Control (RRC) inactive data transmission; receive, via the communication circuitry, a message 3 (Msg3) or a MsgA Physical Uplink Shared Channel (PUSCH) comprising uplink (UL) data via configured resources; and transmit, via the communication circuitry, a message 4 (Msg4) or a message B (MsgB) in response to the Msg3 or the MsgA PUSCH.

公开(公告)号：US20230156804A1

公开(公告)日：2023-05-18

申请号：US17598223

申请日：2020-08-05

Applicant: Apple Inc.

Inventor： Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Sigen Ye ,  Weidong Yang ,  Oghenekome Oteri ,  Hong He ,  Yushu Zhang ,  Sarma V. Vangala ,  Haijing Hu

IPC: H04W74/08 ,  H04L5/00 ,  H04B7/185 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04L5/0091 ,  H04B7/18563 ,  H04W74/002

Abstract: Methods and systems to enhance NR RACH procedure to accommodate non-terrestrial networks (NTN) are disclosed. The length of the RAR window may be extended. A NTN-RNTI associated with the time-frequency resources used for the PRACH preamble may be used to scramble the CRC of DCI used for downlink assignment in the RAR. The DCI content may include information on the associated PRACH preamble to assist the UE in distinguishing between RARs generated as a response to PRACH preambles transmitted by different UEs from different system frames. The NTN-RNTI may contain information on the system frames when the UE sends the PRACH preamble. The RA-RNTI associated with the time-frequency resources used for the PRACH preambles transmitted from different frames may be used to scramble different subsets of the CRC of the DCI format 1_0 to assist the UE in distinguishing between RARs generated in response to the different PRACH preambles.

公开(公告)号：US11646822B2

公开(公告)日：2023-05-09

申请号：US16582081

申请日：2019-09-25

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Wanping Zhang ,  Fangli Xu ,  Haitong Sun ,  Pengkai Zhao ,  Jia Tang ,  Wei Zeng ,  Yuqin Chen ,  Haijing Hu ,  Sami M. Almalfouh ,  Dawei Zhang ,  Johnson O. Sebeni

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/12 ,  H04W72/121

CPC classification number: H04L1/0073 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/0061 ,  H04L5/0055 ,  H04W72/121 ,  H04L2001/0092

Abstract: Groupcast communications between devices of a group of devices, e.g. between vehicles in a platoon, may include a device in the group transmitting a groupcast message in a sidelink transmission to the other devices and receiving feedback information in sidelink transmissions from the other devices within the same channel occupancy time (CoT). The feedback information may be transmitted by the other devices in response to the groupcast message including an information request directed to the other devices. The group of devices may include a designated group leader which may manage one or more aspects of the communications of the other devices in the group. The designated group leader may be dynamically switched based at least on the received feedback information. The devices in the group may use beamforming for intra-group and inter-group sidelink communications for efficient spectrum usage.

公开(公告)号：US20230136259A1

公开(公告)日：2023-05-04

申请号：US17787829

申请日：2021-09-24

Applicant: APPLE INC.

Inventor： Alexander Sirotkin ,  Naveen Kumar R. Palle Venkata ,  Haijing Hu ,  Pavan Nuggehalli ,  Sarma V. Vangala ,  Yuqin Chen ,  Zhibin Wu ,  Sethuraman Gurumoorthy ,  Fangli Xu ,  Ralf Rossbach

IPC: H04W36/18 ,  H04W36/00

Abstract: Methods, systems, apparatuses, and computer programs for enhancing UE handover. In one aspect, the method can include obtaining a request for a handover event from a UE, wherein the request includes at least (i) a request for access to a primary cell group and (ii) data indicating capabilities of the UE, determining, based on the UE capabilities, that the UE is capable of maintaining communication with a secondary cell group of a base station during handover of the UE to the primary cell group of the first base station, generating based on the determined UE capability, a handover command that instructs the UE to maintain communication with the secondary cell group of the base station during handover of the UE to the primary cell group, encoding the generated handover command for transmission to the UE, and transmitting the generated handover command to the UE.

公开(公告)号：US20230122888A1

公开(公告)日：2023-04-20

申请号：US18083836

申请日：2022-12-19

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Longda Xing ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Xu Ou

IPC: H04W36/10 ,  H04W36/00 ,  H04W36/08

Abstract: Apparatuses, systems, and methods for a wireless device avoiding reselection or handover to cells of different operators. The wireless device may attach to a first base station of a first network operator. The wireless device may determine that a neighboring base station is associated with a second network operator. Based on determining the neighboring base station is associated with the second network operator, the wireless device may exclude the third base station from handover or reselection.

公开(公告)号：US11595942B2

公开(公告)日：2023-02-28

申请号：US17705552

申请日：2022-03-28

Applicant: Apple Inc.

Inventor： Sethuraman Gurumoorthy ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Longda Xing ,  Murtaza Shikari ,  Muthukumaran Dhanapal ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Vijay Venkataraman ,  Yaoqi Yan ,  Yuqin Chen ,  Zhiwei Wang

IPC: H04W68/02 ,  H04W72/12 ,  H04W88/06

Abstract: This disclosure relates to systems, apparatuses, and methods for coordinating communication and avoiding and/or mitigating collisions for multi-subscriber identity module devices in a wireless communication system. A wireless device may coordinate communication associated with different subscriber identity modules and/or may mitigate collisions between communications associated with different subscriber identity modules. A network may provide information to improve coordination and/or mitigate collisions. A network may adjust paging schedules and/or provision of alert messages to improve coordination.

公开(公告)号：US20230041601A1

公开(公告)日：2023-02-09

申请号：US17439325

申请日：2021-08-04

Applicant: APPLE INC.

Inventor： Sarma V. Vangala ,  Alexander Sirotkin ,  Fangli XU ,  Haijing Hu ,  Naveen Kumar R. Palle Venkata ,  Pavan Nuggehalli ,  Yuqin Chen ,  Zhibin Wu ,  Sethuraman Gurumoorthy ,  Ralf Rossbach

IPC: H04W36/00 ,  H04W36/32 ,  H04W36/30

Abstract: A UE may perform a location-based conditional handover (CHO) based on a region information and size parameter associated with a serving cell of a non-terrestrial network (NTN). In time-based CHO, the UE may perform CHO in response to expiration of a network-configured wait time. Alternatively, the UE may perform CHO by randomly selecting a wait time from a network configured time range. The selection may be randomized using a network provided seed or using a cell Radio Network Temporary Identifier (RNTI) value. In elevation-based CHO, the UE may perform CHO in response to the elevation angle of a satellite being less than a network configured threshold. When the UE is configured with multiple cells of the NTN, and the CHO criteria for two or more of the cells are satisfied, the UE may select a target cell for CHO based on network indicated prioritization of the cells.