公开(公告)号：US20210099271A1

公开(公告)日：2021-04-01

申请号：US17023342

申请日：2020-09-16

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Yakun Sun ,  Fangli Xu ,  Yuqin Chen ,  Dawei Zhang ,  Haijing Hu ,  Chunhai Yao ,  Yuchul Kim ,  Hong He ,  Wei Zeng ,  Haitong Sun

IPC: H04L5/00 ,  H04W24/10 ,  H04B7/06

Abstract: A wireless user equipment (UE) may employ any of various mechanisms for reporting signal quality measurements to a wireless network. The UE may impose a time delay between measurement and reporting, based on a delay parameter K. The UE may average measurements obtained at different measurement instances. The UE may employ any of various schemes for prioritizing transmission of one type of report over another, when temporal collisions occur between different types of report. The UE may employ a differential report that includes a state for indicating that a beam is not workable. The UE may employ a beam index that includes a state for indicating an invalid beam. A base station may receive a signal quality report and determine workability of a beam, e.g., by triggering a report of channel state information.

公开(公告)号：US20210051611A1

公开(公告)日：2021-02-18

申请号：US17051383

申请日：2018-05-10

Applicant: Apple Inc.

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

IPC: H04W56/00 ,  H04L1/18

Abstract: A transmitter (e.g. a packet data convergence protocol, PDCP, in the transmitter), which may be a base station for downlink communications or a user equipment device for uplink communications, may control timing of the delivery of duplicate (same) packets to multiple (e.g. two) wireless links (e.g. radio link control links) for transmission to a receiver, based at least on synchronization information received from the receiver. The duplicate packets may be transmitted over the multiple wireless links to the receiver, which may receive the duplicate packets over the multiple wireless links. The receiver may collect and/or generate synchronization information indicative of the timing or latency between the multiple wireless links, based at least on the respective receive timings of the duplicate packets over the multiple wireless links. The receiver may transmit a report containing the synchronization information to the transmitter periodically and/or in response to a trigger event.

公开(公告)号：US20210051583A1

公开(公告)日：2021-02-18

申请号：US16899303

申请日：2020-06-11

Applicant: Apple Inc.

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

IPC: H04W52/02 ,  H04W76/28 ,  H04W4/90 ,  H04L29/08 ,  H04W68/00 ,  H04W4/06

Abstract: Systems, apparatuses, and methods for notification support in extended discontinuous reception mode. A base station and UE may configure eDRX communication. An indication may be received during the eDRX communication. The network may cache the indication. The network may modify the DRX configuration. The network may use a wake up signal. In response, the UE may receive the indication while achieving power savings from the eDRX configuration.

公开(公告)号：US20210051571A1

公开(公告)日：2021-02-18

申请号：US16988888

申请日：2020-08-10

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Yuqin Chen ,  Haijing Hu

IPC: H04W48/14 ,  H04W72/04 ,  H04W72/12

Abstract: A user equipment (UE) in a connected mode with respect to a base station transmits a request for desired system information via dedicated uplink signaling, thus increasing the probability of successful reception of the request as compared to transmission over a contention based channel. (The request may identify one or more desired system information blocks, or, one or more desired block portions.) The base station may transmit the desired system information using dedicated downlink signaling, thereby avoiding collisions with unicast downlink transmissions to the UE. Alternatively, the base station may simply broadcast the desired system information. The base station may also transmit, via dedicated downlink signaling, an indication of whether the request is granted or not. The disclosed mechanisms may support modern services such as Vehicle-to-Everything (V2X) and Multimedia Broadcast Multicast Service (MBMS).

公开(公告)号：US20210014926A1

公开(公告)日：2021-01-14

申请号：US16918164

申请日：2020-07-01

Applicant: Apple Inc.

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

IPC: H04W76/27 ,  H04W76/10 ,  H04W68/00 ,  H04L29/06 ,  H04W36/04 ,  H04W36/00 ,  H04W74/08

Abstract: This disclosure relates to performing data communication while in an inactive state in a cellular communication system.

公开(公告)号：US20200305143A1

公开(公告)日：2020-09-24

申请号：US16894146

申请日：2020-06-05

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04W76/10 ,  H04L5/00 ,  H04W12/00

Abstract: This disclosure relates to techniques for reducing signaling overhead associated with signaling the capability of a wireless device and/or other messages. Among various possibilities, tags and/or compression may be used. Additionally, techniques for enhanced security and signaling between network devices are disclosed.

公开(公告)号：US20200178101A1

公开(公告)日：2020-06-04

申请号：US16590307

申请日：2019-10-01

Applicant: Apple Inc.

Inventor： Sree Ram Kodali ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Juergen H. Kreuchauf ,  Longda Xing ,  Murtaza A. Shikari ,  Rama Diwakara Rao Noolu ,  Sethuraman Gurumoorthy ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Xu Ou ,  Yuqin Chen

IPC: H04W24/10 ,  H04B17/318

Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for improvements of display of signal bars on a user interface of a wireless device. The wireless device may be configured to perform methods for determining a number of signal bars to display on the user interface based, at least in part, on a reference frequency. The reference frequency may be indicated and/or provided by a network.

公开(公告)号：US20250150218A1

公开(公告)日：2025-05-08

申请号：US19011771

申请日：2025-01-07

Applicant: Apple Inc.

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

IPC: H04L1/1829 ,  H04L1/1825 ,  H04W84/06

Abstract: Techniques, described herein, include solutions for managing hybrid automatic repeat request (HARQ) processes and communications for non-terrestrial networks (NTNs) (e.g., a wireless communication network that includes a satellite network component). A user equipment (UE) may receive a request for capability information of the UE and in response, transmit a message indicating the capability information of the UE, wherein the capability information includes HARQ disablement information indicating whether the UE supports disabled HARQ feedback.

公开(公告)号：US20250119780A1

公开(公告)日：2025-04-10

申请号：US18871989

申请日：2022-10-31

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Fangli Xu ,  Haijing Hu

IPC: H04W24/10 ,  H04B17/318 ,  H04W84/06

Abstract: The present application relates to devices and components including apparatus, systems, and methods for performing measurements before a radio link failure. In an example, a condition is detected by a UE in advance of a time point in which a non-terrestrial network (NTN) node is to stop providing service to the UE. The condition can be a timing-based condition related to, for example, t-service, a location-based condition related to, for example, a reference location, a coverage hole, and/or a timer condition. The UE can perform, in advance of the time point, a radio resource management (RRM) measurement in an attempt to measure a neighbor cell based on the condition.

公开(公告)号：US12273882B2

公开(公告)日：2025-04-08

申请号：US17438214

申请日：2021-06-25

Applicant: Apple Inc.

Inventor： Ralf Rossbach ,  Fangli Xu ,  Sarma V. Vangala ,  Haijing Hu ,  Weidong Yang ,  Lakshmi Iyer ,  Sabine Roessel

IPC: H04W72/20

Abstract: An application layer in a device, a service data adaptation protocol (SDAP) layer in the device, and/or a media access control (MAC) layer in the device may determine that wireless communication resources allocated to the device need to be adjusted. The determination may be in response to detecting that a quality of the wireless connection of the device has deteriorated, or it may be based on advance knowledge of information pertaining to an application layer payload in the device. In response to the determination the device may transmit, in a MAC Control Element (MAC CE) to a base station, a request for an adjustment of the allocated wireless communication resources. The adjustment may lead to a temporary boost of resources for a limited period of time or to a persistent update of the allocated wireless communication resources. To allow better scheduling of multiple QoS flows mapped to the same DRB and better selection of data when constructing a MAC Packet Data Unit (PDU), a mapping between QoS flows and LCHs may also be provided to the MAC layer.