公开(公告)号：US11457503B2

公开(公告)日：2022-09-27

申请号：US16487173

申请日：2018-03-16

Applicant: Apple Inc.

Inventor： Jaemin Han ,  Yujian Zhang ,  Alexander Sirotkin ,  Xu Zhang ,  Yifan Yu ,  Min Huang ,  Feng Yang ,  Sudeep Palat

IPC: H04W80/02 ,  H04W76/10 ,  H04L1/18 ,  H04L69/16 ,  H04W28/06

Abstract: A centralized RAN architecture that includes lower layer transmission nodes (referred to as distributed units (DUs) herein) that connect to an upper layer RAN node (referred to as a centralized unit (CU) herein). A centralized RAN architecture may include a functional split, between the CU and DU, corresponding to the Packet Data Convergence Protocol (PDCP) and Radio Link Control (RLC) layers. In one embodiment, a CU may store copies of downlink PDCP PDUs that are transmitted to a first DU. The CU may retransmit, to a second DU, those of the PDCP PDUs which were previously transmitted to the source DU but have not been acknowledged as successfully delivered by the source DU.

公开(公告)号：US11445564B2

公开(公告)日：2022-09-13

申请号：US16462342

申请日：2017-12-20

Applicant: Apple Inc.

Inventor： Sudeep Palat ,  Richard Burbidge ,  Yujian Zhang ,  Candy Yiu ,  Marta Martinez Tarradell ,  Youn Hyoung Heo ,  Alexandre Stojanovski ,  Sangeetha Bangolae

IPC: H04W76/19 ,  H04W36/00 ,  H04W84/04

Abstract: Techniques described herein may be used to enable User Equipment (UE) to switch between Radio Access Technologies (RATs) while transitioning from an inactive state to an active state. For example. a UE may connect to a base station via one type of RAT (e.g., Long-Term Evolution (LTE) RAT), enter an inactive state, and later, while transitioning from the inactive state to an active state, connect to another base station via another type of RAT (e.g., a New Radio (NR) or 5th Generation (5G) RAT). The UE may transition from one RAT to another RAT without increasing signaling between the UE and the network beyond minimal signaling involved in a transition of the UE from the inactive state to an active state. The network may further minimize signaling by determining and communicating minimized connection configuration information to the UE.

公开(公告)号：US20220159616A1

公开(公告)日：2022-05-19

申请号：US17441209

申请日：2020-05-28

Applicant: Apple Inc.

Inventor： Alexandre Saso Stojanovski ,  Ching-Yu Liao ,  Sudeep Palat ,  Sheetal Bhasin

IPC: H04W68/02 ,  H04W24/08 ,  H04W60/04 ,  H04W8/18

Abstract: In an example method, a user equipment (UE) determines a first identifier assigned to the UE for use on a first wireless communications network and one or more first time slots for monitoring the first wireless communication networks. The UE determines a second identifier assigned to the UE for use on a second wireless communications network and one or more second time slots for monitoring the second wireless communication networks. The UE determines that the one or more first time slots at least partially overlap the one or more second time slots, and in response, transmits to the second wireless communications network, a request for a third identifier to be assigned to the UE for use on the second wireless communications network and/or a request that the one or more second time slots be offset by an interval of time.

公开(公告)号：US20220030488A1

公开(公告)日：2022-01-27

申请号：US17311749

申请日：2020-03-18

Applicant: Apple Inc.

Inventor： Jaemin Han ,  Feng Yang ,  Alexander Sirotkin ,  Sudeep Palat

IPC: H04W36/08 ,  H04W40/36

Abstract: Apparatuses, systems, and methods for a network node to inter-connect with a first secondary node (SN) within a core network. The network node may be a master node and may serve a UE. The first SN may be a source SN. The network node may initiate a change from the first SN to a second SN, which may be a target SN. The network mode may determine data forwarding from the first SN to the second SN and may request, from the first SN, data forwarding intentions prior to initiating the change from the first SN to a second first SN to the second SN. The network node may send, to the first SN, data forwarding instructions (e.g., based, at least in part, on the data forwarding intentions of the first SN) and the data forwarding instructions may include a requirement for the first SN to follow the data forwarding instructions.

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：US20210258882A1

公开(公告)日：2021-08-19

申请号：US17269281

申请日：2019-09-26

Applicant: Apple Inc.

Inventor： Kyeongin Jeong ,  Sudeep Palat ,  Robert Zaus ,  Alexandre Saso Stojanovski ,  Youn Hyoung Heo

IPC: H04W52/02 ,  H04W68/02 ,  H04W72/04

Abstract: A network device (e.g., a user equipment (UE), a new radio NB (gNB), or other network component) can process or generate a one-step paging reception or a two-step paging reception based on being in a sub-state of an idle mode. A UE can enter into an idle state to enable a decreased power consumption of battery, and further reduce power consumption by only monitoring a PDCCH in response to operating in a camped on any cell state, and eliminate processing a paging message when in the camped on any cell state.

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：US12245139B2

公开(公告)日：2025-03-04

申请号：US17430160

申请日：2020-02-08

Applicant: Apple Inc.

Inventor： Yi Guo ,  Sudeep Palat ,  Alexey Khoryaev

IPC: H04W48/18 ,  H04W8/24 ,  H04W48/14 ,  H04W64/00

Abstract: The present disclosure relates to selecting a Local Management Function (LMF) in a wireless communication network, a next generation Radio Access Network (NG-RAN) acquires a capability from a user equipment (UE), the capability indicating whether the UE is capable of supporting LMF in Radio Access Network (RAN). An access and mobility management function (AMF) is then notified whether the UE is capable of supporting LMF in RAN. An LMF selection is then received from the AMF. Then a response is transmitted to the UE based on the received LMF selection, the response indicating whether a positioning procedure to be carried out by the UE is based on LMF in RAN. In this manner, the capabilities of the UE are taken into consideration when selecting an LMF for a positioning procedure.

公开(公告)号：US12167230B2

公开(公告)日：2024-12-10

申请号：US17311749

申请日：2020-03-18

Applicant: Apple Inc.

Inventor： Jaemin Han ,  Feng Yang ,  Alexander Sirotkin ,  Sudeep Palat

IPC: H04W40/36 ,  H04W36/00 ,  H04W36/08

Abstract: Apparatuses, systems, and methods for a network node to inter-connect with a first secondary node (SN) within a core network. The network node may be a master node and may serve a UE. The first SN may be a source SN. The network node may initiate a change from the first SN to a second SN, which may be a target SN. The network mode may determine data forwarding from the first SN to the second SN and may request, from the first SN, data forwarding intentions prior to initiating the change from the first SN to a second first SN to the second SN. The network node may send, to the first SN, data forwarding instructions (e.g., based, at least in part, on the data forwarding intentions of the first SN) and the data forwarding instructions may include a requirement for the first SN to follow the data forwarding instructions.

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.