公开(公告)号：US11723073B2

公开(公告)日：2023-08-08

申请号：US17040437

申请日：2019-09-29

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Clive E. Rodgers ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng ,  Yuqin Chen ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W74/08 ,  H04W72/1268 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W72/1268 ,  H04W74/006

Abstract: A wireless user equipment (UE) device may transmit a random access preamble to a base station, using a physical resource on an uplink signal. After failing to receive an initial transmission of a response message from the base station (BS), the UE device may monitor for one or more retransmissions of the response message. Each of the retransmission may include a corresponding transmission number. As an alternative, each of the retransmissions may be at least partially scrambled using a corresponding Radio Network Temporary Identifier (RNTI). As another alternative, a window for monitoring and RNTI calculation may be extended to include the one or more retransmissions. The successive retransmissions may include the same set of UE-specific payloads, or, a decreasing set of payloads over time as UE devices acknowledge successful receipt of their respective payloads.

公开(公告)号：US20230239791A1

公开(公告)日：2023-07-27

申请号：US17593830

申请日：2020-10-14

Applicant: Apple Inc.

Inventor： Sethuraman Gurumoorthy ,  Fangli Xu ,  Adesh Kumar ,  Birgit Breining ,  Dawei Zhang ,  Haijing Hu ,  Longda Xing ,  Naveen Kumar R. Palle Venkata ,  Sarma V. Vangala ,  Sigen Ye ,  Srirang A. Lovlekar ,  Wei Zeng ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W52/02

CPC classification number: H04W52/0229 ,  H04W52/0216 ,  H04W76/28

Abstract: A method for power saving, comprising: establishing a radio resource control (RRC) connection with a wireless device, transmitting, to the wireless device, configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on time period, and an offset time, transmitting an enhanced wake-up signal (EWUS) monitoring occasion for a DRX cycle, the EWUS monitoring occasion based on the offset time and the DRX on time period, determining that the wireless device can skip monitoring one or more future EWUS monitoring occasions, transmitting, during a first DRX cycle, a EWUS for the wireless device during the EWUS monitoring occasion associated with the first DRX cycle, the EWUS indicating that the wireless device can skip the one or more future EWUS monitoring occasions, and skipping transmitting the EWUS to the wireless device during the one or more future EWUS monitoring occasions.

公开(公告)号：US11700656B2

公开(公告)日：2023-07-11

申请号：US15734516

申请日：2019-11-04

Applicant: Apple Inc.

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

IPC: H04W76/15 ,  H04W76/18 ,  H04W76/14

CPC classification number: H04W76/15 ,  H04W76/14 ,  H04W76/18

Abstract: Peer devices may wirelessly communicate with each other over a bidirectional sidelink logical channel (LCH) through an established bidirectional sidelink radio bearer. An initiating device of the peer devices may dynamically select a logical channel ID for establishing a fully bidirectional or semi-bidirectional SLRB. At least two alternative sidelink radio resource control (PC5-RRC) procedures may ensure the SLRB parameters are configured correctly in the established logical channel. The procedures also allow the network to configure a limited SLRB which is used to couple the SLRB configuration in the direction in which limited traffic (e.g. feedback information such as robust header compression feedback and/or status reports) is transmitted.

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：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：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.