公开(公告)号：US11357018B2

公开(公告)日：2022-06-07

申请号：US17001835

申请日：2020-08-25

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Youn Hyoung Heo

IPC: H04W72/10 ,  H04W4/02 ,  H04W88/02 ,  H04L5/00 ,  H04W76/10 ,  H04W76/18 ,  H04W76/19 ,  H04W76/15 ,  H04W28/08 ,  H04W36/00 ,  H04W4/90 ,  H04W24/10 ,  H04W48/06 ,  H04W74/00 ,  H04W72/04 ,  H04W48/08 ,  H04W48/18 ,  H04W28/02 ,  H04W48/12 ,  H04W8/00 ,  H04W52/34 ,  H04W56/00 ,  H04B17/318 ,  H04W74/08 ,  H04W72/08 ,  H04W8/06 ,  H04W8/18 ,  H04W60/00 ,  H04W60/02 ,  H04J3/16 ,  H04W4/60 ,  H04W76/14 ,  H04W4/80 ,  H04W92/20 ,  H04W84/12 ,  H04W88/08 ,  H04W88/16 ,  H04B7/0413 ,  H04W8/04 ,  H04W88/18

Abstract: Embodiments of a User Equipment (UE) to support dual-connectivity with a Master Evolved Node-B (MeNB) and a Secondary eNB (SeNB) are disclosed herein. The UE may receive downlink traffic packets from the MeNB and from the SeNB as part of a split data radio bearer (DRB). At least a portion of control functionality for the split DRB may be performed at each of the MeNB and the SeNB. The UE may receive an uplink eNB indicator for an uplink eNB to which the UE is to transmit uplink traffic packets as part of the split DRB. Based at least partly on the uplink eNB indicator, the UE may transmit uplink traffic packets to the uplink eNB as part of the split DRB. The uplink eNB may be selected from a group that includes the MeNB and the SeNB.

公开(公告)号：US11272574B2

公开(公告)日：2022-03-08

申请号：US16938291

申请日：2020-07-24

Applicant: Apple Inc.

Inventor： Bharat Shrestha ,  Yujian Zhang

IPC: H04W88/06 ,  H04W80/02 ,  H04W72/10 ,  H04W76/27 ,  H04W72/12 ,  H04W28/02 ,  H04W72/14 ,  H04L5/00 ,  H04W72/04

Abstract: Embodiments of a User Equipment (UE) and methods of communication are generally described herein. The UE may, if a regular buffer status report (BSR) is triggered and a logical channel scheduling request (SR) delay timer is not running, and if available uplink shared channel (UL-SCH) data resources do not meet one or more logical channel prioritization (LCP) mapping restrictions configured for a logical channel of uplink data: trigger a scheduling request to request UL-SCH data resources for a new transmission of uplink data. Currently pending SRs and BSRs may not be cancelled after assembly of a medium access control (MAC) protocol data unit (PDU), but may be cancelled at a later time when a MAC PDU including a BSR is transmitted.

公开(公告)号：US11153795B2

公开(公告)日：2021-10-19

申请号：US16077455

申请日：2016-09-30

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Yujian Zhang ,  Youn Hyoung Heo ,  Sudeep Palat ,  Mo-Han Fong

IPC: H04W36/02 ,  H04W36/18 ,  H04W36/00

Abstract: User equipment (UE) handover (HO) techniques for reducing or eliminating interruption time during an HO process are described. In one embodiment, for example, an apparatus may include at least one memory and logic for an evolved node B (eNB), at least a portion of the logic comprised in hardware coupled to the at least one memory. The logic may be operative to forward downlink (DL) data received from a serving gateway (SGW) to user equipment (UE), transmit a handover command to the UE to trigger execution of a handover (HO) process to handover the UE to a target eNB, continue forwarding at least a portion of the DL data to the UE following transmission of the handover command, and terminate transmission of the DL data to the UE responsive to detecting a stop DL data event. Other embodiments are described and claimed.

公开(公告)号：US10966274B2

公开(公告)日：2021-03-30

申请号：US16316489

申请日：2017-08-08

Applicant: Apple Inc.

Inventor： Sudeep Palat ,  Yujian Zhang ,  Richard Burbidge ,  Ahmed Ibrahim ,  Youn Hyoung Heo ,  Ingolf Karls ,  Yang Yang ,  Miltiadis Filippou ,  Michael Faerber

IPC: H04W76/27 ,  H04W76/15 ,  H04W92/20

Abstract: Coordination of RRC configurations between an LTE NB and an NR NB in dual connectivity with a UE are performed using an RRC container that includes shared or coordinated parameters. For example, an NR NB determines to alter a configuration of a UE. The NR NB transmits a coordinated RRC container with coordinated UE parameters to an LTE NB and transmits a UE parameter RRC container to the LTE NB. The LTE NB evaluates the coordinated container for compliance with the UE capability. If satisfied, the LTE NB can send both containers (in a single RRC message or multiple RRC messages) to the UE.

公开(公告)号：US12213186B2

公开(公告)日：2025-01-28

申请号：US17419973

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Yujian Zhang ,  Yushu Zhang ,  Sergey Sosnin ,  Seau S. Lim

IPC: H04W74/0833 ,  H04W72/23 ,  H04W72/566 ,  H04W74/00

Abstract: A method and device are disclosed for performing collision resolution in a two-step random access channel (RACH) process. In such a process, an MsgA PUSCH signal and a grant based PUSCH signal may collide. When such a collision is detected, either the MsgA PUSCH signal or the grant based PUSCh signal are dropped. The other of the two signals is then transmitted. The determination regarding which signal to drop can be based on a set of rules stored in memory.

公开(公告)号：US12127241B2

公开(公告)日：2024-10-22

申请号：US18202682

申请日：2023-05-26

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Youn Hyoung Heo

IPC: H04W72/56 ,  H04B17/318 ,  H04J3/16 ,  H04L5/00 ,  H04W4/02 ,  H04W4/60 ,  H04W4/80 ,  H04W4/90 ,  H04W8/00 ,  H04W8/06 ,  H04W8/18 ,  H04W24/10 ,  H04W28/02 ,  H04W36/00 ,  H04W48/06 ,  H04W48/08 ,  H04W48/12 ,  H04W48/18 ,  H04W52/34 ,  H04W56/00 ,  H04W60/00 ,  H04W60/02 ,  H04W72/0453 ,  H04W72/51 ,  H04W72/52 ,  H04W72/542 ,  H04W74/00 ,  H04W74/0833 ,  H04W76/10 ,  H04W76/14 ,  H04W76/15 ,  H04W76/18 ,  H04W76/19 ,  H04B7/0413 ,  H04W8/04 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  H04W88/16 ,  H04W88/18 ,  H04W92/20

CPC classification number: H04W72/56 ,  H04B17/318 ,  H04J3/1694 ,  H04L5/0007 ,  H04W4/02 ,  H04W4/023 ,  H04W4/60 ,  H04W4/80 ,  H04W4/90 ,  H04W8/005 ,  H04W8/06 ,  H04W8/183 ,  H04W24/10 ,  H04W28/0215 ,  H04W36/00692 ,  H04W48/06 ,  H04W48/08 ,  H04W48/12 ,  H04W48/18 ,  H04W52/346 ,  H04W56/001 ,  H04W56/002 ,  H04W60/00 ,  H04W60/02 ,  H04W72/0453 ,  H04W72/51 ,  H04W72/52 ,  H04W72/542 ,  H04W74/004 ,  H04W74/0833 ,  H04W76/10 ,  H04W76/14 ,  H04W76/15 ,  H04W76/18 ,  H04W76/19 ,  H04B7/0413 ,  H04L5/001 ,  H04L5/0098 ,  H04W8/04 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  H04W88/16 ,  H04W88/18 ,  H04W92/20 ,  Y02D30/70

Abstract: Embodiments of a User Equipment (UE) to support dual-connectivity with a Master Evolved Node-B (MeNB) and a Secondary eNB (SeNB) are disclosed herein. The UE may receive downlink traffic packets from the MeNB and from the SeNB as part of a split data radio bearer (DRB). At least a portion of control functionality for the split DRB may be performed at each of the MeNB and the SeNB. The UE may receive an uplink eNB indicator for an uplink eNB to which the UE is to transmit uplink traffic packets as part of the split DRB. Based at least partly on the uplink eNB indicator, the UE may transmit uplink traffic packets to the uplink eNB as part of the split DRB. The uplink eNB may be selected from a group that includes the MeNB and the SeNB.

公开(公告)号：US11843976B2

公开(公告)日：2023-12-12

申请号：US17131118

申请日：2020-12-22

Applicant: APPLE INC.

Inventor： Sudeep Palat ,  Richard Burbidge ,  Yujian Zhang ,  Alexandre Saso Stojanovski ,  Jerome Parron

IPC: H04W28/24 ,  H04W76/27 ,  H04L5/00 ,  H04W28/02

CPC classification number: H04W28/24 ,  H04L5/0055 ,  H04W28/0268 ,  H04W76/27

Abstract: Disclosed are apparatuses for quality of service (QoS) flow to data radio bearer (DRB) mapping override bits. An apparatus of a user equipment (UE), includes one or more data storage devices, and one or more processors operably coupled to the one or more data storage devices. The one or more data storage devices are configured to store data corresponding to mapping of QoS flows to data radio bearers. The one or more processors are configured to map one or more QoS flows to a DRB in an uplink (UL) responsive to receipt, by the UE from a cellular base station, of a user plane packet in a downlink (DL) through the DRB if an override bit of the user plane packet indicates that reflective mapping should apply.

公开(公告)号：US11737138B2

公开(公告)日：2023-08-22

申请号：US16446973

申请日：2019-06-20

Applicant: Apple Inc.

Inventor： Sudeep Palat ,  Yi Guo ,  Yujian Zhang ,  Seau Sian Lim

IPC: H04W74/08 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W84/12

Abstract: Some demonstrative embodiments include devices, systems and/or methods of communication over common control channels. For example, an apparatus may include logic and circuitry configured to cause a User Equipment (UE) to determine a selected Common Control Channel (CCCH) message configuration from a first predefined message configuration and a second predefined message configuration, the first predefined message configuration having a first predefined message bit-size, the second predefined message configuration having a second predefined message bit-size; to generate an Uplink (UL) CCCH message according to the selected CCCH message configuration, the UL CCCH message comprising a Medium Access Control (MAC) header comprising a Logical Channel Identify (ID) (LCID) field having a value corresponding to the selected CCCH message configuration; and to transmit the UL CCCH message to a Next Generation Node B (gNB) over a logical channel corresponding to the selected CCCH message configuration.

公开(公告)号：US11638329B2

公开(公告)日：2023-04-25

申请号：US17587004

申请日：2022-01-28

Applicant: Apple Inc.

Inventor： Bharat Shrestha ,  Yujian Zhang

IPC: H04W88/06 ,  H04W80/02 ,  H04W72/10 ,  H04W76/27 ,  H04W72/12 ,  H04W28/02 ,  H04W72/14 ,  H04L5/00 ,  H04W72/04

Abstract: Embodiments of a User Equipment (UE) and methods of communication are generally described herein. The UE may, if a regular buffer status report (BSR) is triggered and a logical channel scheduling request (SR) delay timer is not running, and if available uplink shared channel (UL-SCH) data resources do not meet one or more logical channel prioritization (LCP) mapping restrictions configured for a logical channel of uplink data: trigger a scheduling request to request UL-SCH data resources for a new transmission of uplink data. Currently pending SRs and BSRs may not be cancelled after assembly of a medium access control (MAC) protocol data unit (PDU), but may be cancelled at a later time when a MAC PDU including a BSR is transmitted.

公开(公告)号：US11350400B2

公开(公告)日：2022-05-31

申请号：US16826421

申请日：2020-03-23

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Jeongho Jeon ,  Youn Hyoung Heo ,  Candy Yiu ,  Bharat Shrestha

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W88/06 ,  H04W88/10 ,  H04W92/10

Abstract: 5G methods and architectures to determine active SCells and their bandwidth parts (BWP) used in carrier aggregation (CA) are disclosed in which activating a BWP for an active SCell is performed initially according to a default value provided in initial radio resource control (RRC) messaging. After initialization, SCells and the SCell BWPs used by the user equipment (UE) are activated by RRC messaging, downlink control information (DCI) or dedicated medium access control (MAC) control elements (MAC CEs) with the initial BWP used for an activated SCell being a default value provided during initialization.