公开(公告)号：US20200186290A1

公开(公告)日：2020-06-11

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

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：US20200084818A1

公开(公告)日：2020-03-12

申请号：US16553427

申请日：2019-08-28

Applicant: Apple Inc.

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

IPC: H04W76/18 ,  H04W48/02 ,  H04W48/04 ,  H04W36/00

Abstract: This disclosure relates to techniques for efficiently handling connection rejections. A wireless device may detect barring conditions in response to receiving one or more connection rejections. The wireless device may bar one or more connections based on the barring conditions, and may attempt to access network services over one or more other connections.

公开(公告)号：US10567142B2

公开(公告)日：2020-02-18

申请号：US15903222

申请日：2018-02-23

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Wei Zeng ,  Xiangying Yang ,  Haijing Hu ,  Dawei Zhang

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04W52/02

Abstract: Techniques are disclosed relating to acknowledgements and preemption indicators in the context of multiplexing different services on wireless physical layer frames. In some embodiments, transport blocks for a transmission are divided into code blocks and code block groups. Information indicating the division may be communicated between a base station and mobile device. In some embodiments, a preemption indicator is transmitted which indicates a portion of the transport block preempted by another data service, and the preemption indicator is specified at a different granularity than a code block group. In some embodiments, acknowledgement information is transmitted that indicates, for each code block group included in the transport block, whether the code block group was successfully decoded by the user device. In various embodiments, the disclosed techniques may facilitate preemption by a low-latency, high-reliability data service.

公开(公告)号：US10560143B2

公开(公告)日：2020-02-11

申请号：US16117192

申请日：2018-08-30

Applicant: Apple Inc.

Inventor： Wei Zeng ,  Haijing Hu ,  Dawei Zhang ,  Xiangying Yang ,  Haitong Sun ,  Christian W. Mucke

IPC: H04B1/71 ,  H04B1/711 ,  H04W52/14 ,  H04W72/04 ,  H04B17/309 ,  H04W52/36 ,  H04W72/08

Abstract: Apparatuses, systems, and methods for a wireless device to detect intermodulation issues and configure a transmission scheme to remedy detected intermodulation issues. The wireless device may perform measurements on a downlink carrier while one uplink carrier is scheduled for the wireless device. The wireless device may also perform measurements on the downlink carrier while two uplink carriers are scheduled for the wireless device. The wireless device may provide information based on those measurements to a serving base station. The base station may determine that an intermodulation issue is occurring at the wireless device based on the information provided, and may configure the wireless device to use a single uplink carrier at a time based at least in part on the intermodulation issue.

公开(公告)号：US20180278368A1

公开(公告)日：2018-09-27

申请号：US15903222

申请日：2018-02-23

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Wei Zeng ,  Xiangying Yang ,  Haijing Hu ,  Dawei Zhang

IPC: H04L1/00 ,  H04L1/18 ,  H04W52/02

Abstract: Techniques are disclosed relating to acknowledgements and preemption indicators in the context of multiplexing different services on wireless physical layer frames. In some embodiments, transport blocks for a transmission are divided into code blocks and code block groups. Information indicating the division may be communicated between a base station and mobile device. In some embodiments, a preemption indicator is transmitted which indicates a portion of the transport block preempted by another data service, and the preemption indicator is specified at a different granularity than a code block group. In some embodiments, acknowledgement information is transmitted that indicates, for each code block group included in the transport block, whether the code block group was successfully decoded by the user device. In various embodiments, the disclosed techniques may facilitate preemption by a low-latency, high-reliability data service.

公开(公告)号：US20180049209A1

公开(公告)日：2018-02-15

申请号：US15027492

申请日：2016-02-05

Applicant: Apple Inc.

Inventor： Haijing Hu ,  Dawei Zhang ,  Huarui Liang

IPC: H04W72/08 ,  H04W48/08 ,  H04W92/02 ,  H04W24/10 ,  H04W48/18

CPC classification number: H04W72/08 ,  H04W16/14 ,  H04W24/10 ,  H04W28/08 ,  H04W48/08 ,  H04W48/18 ,  H04W76/27 ,  H04W88/06 ,  H04W92/02

Abstract: This disclosure relates to techniques for managing and monitoring access to a cellular network using unlicensed spectrum. According to some embodiments, policy information indicating permissible and/or non-permissible uses of unlicensed spectrum to access a radio access network of the cellular network may be distributed to elements of the radio access network, such as base stations. A base station establishing a radio bearer with a wireless device may receive information regarding a service type associated with the radio bearer and may determine radio bearer characteristics, potentially including whether to establish the radio bearer using unlicensed or licensed spectrum, based at least in part on the service type associated with the radio bearer and the network policy information. The base station and/or the user device may also report information regarding unlicensed (and possibly also licensed) network access by the user device to a core network of the cellular network.

公开(公告)号：US20170265057A1

公开(公告)日：2017-09-14

申请号：US15030159

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Dawei Zhang ,  Haijing Hu ,  Huarui Liang

IPC: H04W8/04 ,  H04W48/04 ,  H04L29/12 ,  H04W12/06 ,  H04W60/04

CPC classification number: H04W60/005 ,  H04L61/1511 ,  H04L61/1588 ,  H04W8/04 ,  H04W12/06 ,  H04W48/04 ,  H04W60/00 ,  H04W60/04 ,  H04W88/005 ,  H04W88/16

Abstract: Apparatuses, systems, and methods to perform attachment of a wireless device to a next generation gateway via either a base station of a next generation radio access network (RAN) or a mobility management entity of a legacy RAN. An apparatus may be configured to receive an attachment request from a wireless device, determine authentication information via communication with a home subscriber server, determine, based at least in part on the authentication information, whether the wireless device is capable of communicating via the next generation RAT, and send, in response to determining the wireless device is capable, a connection request to a gateway of the next generation RAN. The authentication information may include subscription information associated with the wireless device.

公开(公告)号：US12279321B2

公开(公告)日：2025-04-15

申请号：US17755738

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Naveen Kumar R. Palle Venkata

IPC: H04W76/15 ,  H04W76/19 ,  H04W76/20

Abstract: A user equipment (UE) is configured to receive, from a base station of a wireless network, a deactivation indication indicating that a secondary cell group (SCG) of a dual connectivity (DC) wireless communications configuration has been deactivated, receive, from the base station, a remapping indication indicating that SCG data originally mapped to an SCG bearer should be remapped to an alternate bearer, remap the SCG data to the alternate bearer based on the remapping indication and transmit data over the alternate bearer.

公开(公告)号：US20250119789A1

公开(公告)日：2025-04-10

申请号：US18889025

申请日：2024-09-18

Applicant: APPLE INC.

Inventor： Ping-Heng Kuo ,  Sudeep Manithara Vamanan ,  Ralf Rossbach ,  Waqar Zia ,  Haijing Hu

IPC: H04W28/06 ,  H04L65/65 ,  H04W24/02 ,  H04W28/02

Abstract: The present application relates to devices and components, including apparatus, systems, and methods for discarding packet data units (PDUs).

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.