公开(公告)号：US11985725B2

公开(公告)日：2024-05-14

申请号：US17438869

申请日：2020-03-18

Applicant: Apple Inc.

Inventor： Jaemin Han ,  Yi Guo ,  Alexander Sirotkin ,  Sudeep Palat

IPC: H04W76/27

CPC classification number: H04W76/27

Abstract: Techniques, systems, and devices to support small data transfers are described. A first node, such as a gNodeB or an eNodeB, can perform operations that include receiving a resume request from a user equipment (UE) that is in an inactive state, the resume request including a small data indication, where context information for the UE resides at a second node; transmitting a retrieve UE context request to the second node, the retrieve UE context request including the small data indication; receiving a UE context response from the second node; transmitting, by the first node, a resume response to the UE to cause the UE to switch to a connected state; processing uplink data from the UE; and transmitting a release message to the UE to cause the UE to switch to the inactive state. The release message can be based on RRC release information received from the second node.

公开(公告)号：US20240080798A1

公开(公告)日：2024-03-07

申请号：US18242087

申请日：2023-09-05

Applicant: Apple Inc.

Inventor： Alexander Sirotkin ,  Jaemin Han

IPC: H04W68/00 ,  H04L1/1607 ,  H04W28/06 ,  H04W80/08

CPC classification number: H04W68/005 ,  H04L1/1642 ,  H04W28/06 ,  H04W80/08 ,  H04W84/18

Abstract: Devices, methods, communication nodes, base stations, storage media, and other embodiments are provided for managing associations in a communication network. In one example embodiment, a New Radio (NR) node is configured for NR user-plane protocol communications between a master node (MN) and a secondary node (SN). The NRnode is configured to generate a downlink (DL) user data message with downlink user data, initiate transmission of the DL user data message to a second node, and process a DL data delivery status message from the second node in response to the DL user data message. In various embodiments, polling and SCG split-bearer configurations are supported by such messaging. In some embodiments, packet data convergence protocol (PDCP) serial numbers are communicated for transmission and retransmission management. In some embodiments, DL configurations initiated by an SN are enabled, as well as UL configurations initiated by either an MN or an SN.

公开(公告)号：US11871375B2

公开(公告)日：2024-01-09

申请号：US16615337

申请日：2018-06-20

Applicant: Apple Inc.

Inventor： Alexander Sirotkin ,  Jaemin Han

IPC: H04W68/00 ,  H04L1/1607 ,  H04W28/06 ,  H04W80/08 ,  H04W84/18

CPC classification number: H04W68/005 ,  H04L1/1642 ,  H04W28/06 ,  H04W80/08 ,  H04W84/18

Abstract: Devices, methods, communication nodes, base stations, storage media, and other embodiments are provided for managing associations in a communication network. In one example embodiment, a New Radio (NR) node is configured for NR user-plane protocol communications between a master node (MN) and a secondary node (SN). The NR node is configured to generate a downlink (DL) user data message with downlink user data, initiate transmission of the DL user data message to a second node, and process a DL data delivery status message from the second node in response to the DL user data message. In various embodiments, polling and SCG split-bearer configurations are supported by such messaging. In some embodiments, packet data convergence protocol (PDCP) serial numbers are communicated for transmission and retransmission management. In some embodiments, DL configurations initiated by and SN are enabled, as well as UL configurations initiated by either an MN or an SN.

公开(公告)号：US11844132B2

公开(公告)日：2023-12-12

申请号：US17287000

申请日：2019-10-24

Applicant: APPLE INC.

Inventor： Jaemin Han ,  Bharat Shrestha

IPC: H04W76/19 ,  H04W76/30 ,  H04W36/00 ,  H04L1/1867

CPC classification number: H04W76/19 ,  H04L1/1896 ,  H04W36/0079 ,  H04W76/30

Abstract: Technology is disclosed for an evolved node B (eNB) operable for early data transmission (EDT) in a user plane (UP) in a cellular internet of things (CIoT) evolved 5 packet system (EPS) network. The eNB can be configured to encode, at the eNB for transmission to a user equipment (UE), a message 4 (Msg4) including a resume identifier (ID) and a next-hop chaining count (NCC). The eNB can be configured to determine, at the eNB, a delivery status of the Msg4 to the UE. The eNB can be configured to encode, at the eNB for transmission to a previous eNB of the UE, one or more of an EDT failure 10 indicator or the resume ID.

公开(公告)号：US11729658B2

公开(公告)日：2023-08-15

申请号：US17315952

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Jaemin Han ,  Yujian Zhang ,  Sudeep Palat ,  Alexander Sirotkin

IPC: H04W28/02 ,  H04W28/04 ,  H04W92/12 ,  H04W88/08 ,  H04W80/02

CPC classification number: H04W28/0263 ,  H04W28/04 ,  H04W80/02 ,  H04W88/085 ,  H04W92/12

Abstract: Systems and methods of providing feedback when a specific PDU is successfully delivered or transmitted are described. The node hosting PDCP entity indicates triggering of a DDDS frame from the remote corresponding node. Rather than immediately triggering transmission of a DDDS frame, the node hosting PDCP entity indicates triggering based on successful delivery of a PDU having a specific SN, as long as in-sequence delivery or transmission of PDUs up to the specific SN was successful. The DDDS frame is transmitted once the corresponding node determines that the PDU having the SN was successfully delivered or transmitted. After reporting by the DDDS frame, the QoS flow associated with the PDUs is remapped from a source DRB to a target DRB.

公开(公告)号：US11632813B2

公开(公告)日：2023-04-18

申请号：US17517182

申请日：2021-11-02

Applicant: Apple Inc.

Inventor： Alexander Sirotkin ,  Yifan Yu ,  Min Huang ,  Jaemin Han ,  Feng Yang

IPC: H04W76/12 ,  H04W80/02 ,  H04W92/20

Abstract: Embodiments of a Next Generation Node B (gNB) are described herein. The gNB may be configured with logical nodes, including a gNB central unit (gNB-CU) and a gNB distributed unit (gNB-DU). The gNB-CU may include a gNB-CU control plane (gNB-CU-CP) for control-plane functionality, and a gNB-CU user plane (gNB-CU-UP) for user-plane functionality. The gNB may initiate an El interface setup procedure, a bearer context setup procedure, and a UE context setup procedure to establish a UE context that includes a signaling radio bearer (SRB) and a data radio bearer (DRB) configuration. The UE context setup request message may be configured to include quality-of-service parameters for the DRB configuration.

公开(公告)号：US11622397B2

公开(公告)日：2023-04-04

申请号：US17250568

申请日：2019-08-06

Applicant: Apple Inc.

Inventor： Alexander Sirotkin ,  Jaemin Han ,  Feng Yang

IPC: H04L12/801 ,  H04W76/12 ,  H04W76/22 ,  H04W76/27 ,  H04L1/1829 ,  H04W36/00

Abstract: An apparatus of a next generation NodeB (gNB) comprises one or more baseband processors to interconnect a gNB Central Unit control-plane entity (gNB-CU-CP) with a gNB Central Unit user-plane entity (gNB-CU-UP) via an E1 control plane interface and a gNB Distributed Unit (gNB-DU) via an F1 control plane interface. Rather than relying on multiple class-1 procedures initiated by gNB-CU-CP toward gNB-CU-UP and gNB-DU, the one or more baseband processors are configured to establish or modify a bearer context and to communicate data transport tunneling and/or packet data convergence protocol (PDCP) preservation status information for a specific user equipment (UE), utilizing the direct F1 user plane interface between gNB-DU and gNB-CU-UP to avoid relaying delay. The gNB can include a memory to store the bearer context and data transport tunneling information.

公开(公告)号：US20220377816A1

公开(公告)日：2022-11-24

申请号：US17869889

申请日：2022-07-21

Applicant: Apple Inc.

Inventor： Feng Yang ,  Alexander Sirotkin ,  Jaemin Han ,  Xu Zhang

IPC: H04W76/10

Abstract: Systems and methods of setting up an E1 interface for a gNB are described, A transmitting entity of the gNB-CU-CP and gNB-CU-UP initiates the first TNL association between the gNB-CU-CP and gNB-CU-UP, and is also limited to initiating the E1 Setup procedure. The transmitting entity sends an E1 SETUP REQUEST message to set up the E1 interface. Afterwards, a message is received from the receiving entity. The transmitting entity determines that the setup of the E1 interface is successful if the message contains IEs of an E1 SETUP RESPONSE message. The types of IEs include a message type IE and a name of the transmitting entity.

公开(公告)号：US11343861B2

公开(公告)日：2022-05-24

申请号：US16826154

申请日：2020-03-20

Applicant: Apple Inc.

Inventor： Richard Burbidge ,  Sangeetha L. Bangolae ,  Youn Hyoung Heo ,  Kyeongin Jeong ,  Jaemin Han ,  Mo-han Fong

IPC: H04W76/10 ,  H04W88/04

Abstract: There is are provided methods and apparatus relating to layer 2 relaying and mobility using a sidelink interface, including a remote user equipment (UE) for use in a wireless communication network, the UE comprising: a device to network (D2N) entity, a device to device (D2D) entity, and control logic to: receive a service data unit derived from an IP packet direct the service data unit to the D2N entity for communication with an eNB using a Uu interface in a first mode of operation, and direct the service data unit to the D2D entity for communication with the eNB via a first relay UE using a sidelink interface in a second, relay, mode of operation.

公开(公告)号：US20220159465A1

公开(公告)日：2022-05-19

申请号：US17439308

申请日：2020-03-24

Applicant: Apple Inc.

Inventor： Bharat Shrestha ,  Jaemin Han ,  Abhijeet Kolekar

IPC: H04W12/106 ,  H04W12/0431 ,  H04W12/041 ,  H04W36/08

Abstract: This disclosure describes methods, systems, and devices for uplink data integrity protection in a communication system including a radio access network (RAN) serving a user equipment (UE) operating in an Early Data Transmission (EDT) configuration. In one example, a method involves generating a hash marker based on a packet data convergence protocol (PDCP) control protocol data unit (PDU) or service data unit (SDU). The method also involves transmitting a message including the hash marker to the RAN.