公开(公告)号：US20200029390A1

公开(公告)日：2020-01-23

申请号：US16487173

申请日：2018-03-16

Applicant: Intel Corporation

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

IPC: H04W80/02 ,  H04W28/06 ,  H04W76/10 ,  H04L29/06 ,  H04L1/18

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：US12107728B2

公开(公告)日：2024-10-01

申请号：US17404309

申请日：2021-08-17

Applicant: Intel Corporation

Inventor： Shu-ping Yeh ,  Jaemin Han ,  Wei Mao ,  Jingwen Bai ,  Murali Narasimha

IPC: H04L43/0829 ,  H04L1/00 ,  H04L41/0823 ,  H04W24/10

CPC classification number: H04L41/0836 ,  H04L1/0003 ,  H04L1/0009 ,  H04L43/0829 ,  H04W24/10

Abstract: Embodiments of a virtualized radio-access network (RAN) node configured to implement functions including an O-RAN Distributed Unit (DU), an O-RAN Radio Unit (RU), an O-RAN Central Unit-Control Plane (CU-CP), and an O-RAN Central Unit-User Plane (CU-UP), are described herein. In some embodiments, a reliability enhancement strategy is determined according to measurement reports collected from user equipment (UEs), the DU and the CU-UP.

公开(公告)号：US20240162955A1

公开(公告)日：2024-05-16

申请号：US18550398

申请日：2022-07-12

Applicant: Intel Corporation

Inventor： Nicholas Whinnett ,  Dawei Ying ,  Bishwarup Mondal ,  Jan Schreck ,  Jaemin Han ,  Leifeng Ruan ,  Jianli Sun

IPC: H04B7/06 ,  H04B7/0452

CPC classification number: H04B7/0617 ,  H04B7/0452 ,  H04B7/063 ,  H04B7/0632

Abstract: Various embodiments herein are directed to beamforming associated with multiple-input multiple-output (MIMO) modes in open radio access network (O-RAN) systems. In one embodiment, an apparatus comprises: memory to store beamforming configuration information associated with a plurality MIMO modes; and processing circuitry, coupled with the memory to: retrieve the beamforming configuration information from the memory; request, based on the beamforming configuration information, measurements associated with the plurality of MIMO modes; receive the measurements associated with the plurality of MIMO modes; and based on the received measurements, train an artificial intelligence/machine learning (AI/ML) model that is to predict relative beamforming performance between the plurality of MIMO modes.

公开(公告)号：US20210392714A1

公开(公告)日：2021-12-16

申请号：US17287000

申请日：2019-10-24

Applicant: INTEL CORPORATION

Inventor： Jaemin Han ,  Bharat Shrestha

IPC: H04W76/19 ,  H04W76/30 ,  H04W36/00 ,  H04L1/18

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：US20190297652A1

公开(公告)日：2019-09-26

申请号：US16393753

申请日：2019-04-24

Applicant: Intel Corporation

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：US20190246310A1

公开(公告)日：2019-08-08

申请号：US16299389

申请日：2019-03-12

Applicant: Intel Corporation

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

IPC: H04W28/02 ,  H04W28/04

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：US20190182211A1

公开(公告)日：2019-06-13

申请号：US16277658

申请日：2019-02-15

Applicant: Intel Corporation

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

IPC: H04L29/12 ,  H04L29/08

Abstract: Embodiments described herein relate to managing bearers in a radio access network (e.g., next generation RAN (NG-RAN), etc.). In one example, a central-unit control-plane (CU-CP) communicates with a distributed unit (DU) and a CU-UP to exchange transport network layer addresses (TNLAs) and tunnel endpoint identifiers (TEIDs) between the DU and the CU-UP. In this way, the DU becomes resistant to the CU-UP's rejection of a bearer setup request from the CU-CP during a bearer setup procedure. Furthermore, during virtual machine (VM) migration or local problems of the CU-UP, an E1 procedure known as “bearer relocate” can be defined to notify the DU of a new TNLA for one or more affected general packet radio service tunneling protocol (GTP) tunnels that are affected by the VM migration or local problems.

公开(公告)号：US20240214272A1

公开(公告)日：2024-06-27

申请号：US18550276

申请日：2022-07-05

Applicant: Intel Corporation

Inventor： Dawei Ying ,  Leifeng Ruan ,  Jaemin Han ,  Qian Li

IPC: H04L41/0894

CPC classification number: H04L41/0894

Abstract: The present invention relates to an apparatus comprising: memory to store policy statement information for a plurality of radio access network (RAN) automation applications (rApps); and processing circuitry, coupled with the memory, to: retrieve the policy statement information from the memory, wherein the policy statement information includes respective policy scope identifiers for respective rApps in the plurality of rApps; identify a conflict associated with common or overlapping policy scope identifiers between two or more rApps from the plurality of rApps; modify one or more A1 policies associated with an A1 interface connecting a non-real-time (non-RT) RAN intelligence controller (RIC) and a near-real-time (near-RT) RIC to resolve the conflict; and notify the two or more rApps of the modification of the one or more A1 policies.

公开(公告)号：US11838777B2

公开(公告)日：2023-12-05

申请号：US17173541

申请日：2021-02-11

Applicant: Intel Corporation

Inventor： Jaemin Han ,  Alexander Sirotkin

IPC: H04W24/08 ,  H04W76/15 ,  H04L1/00 ,  H04W72/542

CPC classification number: H04W24/08 ,  H04L1/0009 ,  H04W72/542 ,  H04W76/15

Abstract: An apparatus for a Next Generation Node-B (gNB) includes processing circuitry coupled to memory. To configure the gNB for QoS monitoring in an NG-RAN with a control plane (CP)-user plane (UP) separation, the processing circuitry is to decode assistance information data received at a gNB Central Unit (gNB-CU) node of the gNB from a gNB Distributed Unit (gNB-DU) node of the gNB. The gNB-CU node is hosting an NR PDCP. The gNB-DU node is configured as a corresponding node of the gNB. The assistance information data includes delay information of a communication link of the NG-RAN measured by the corresponding node. A delay associated with the communication link is determined at the gNB-CU node of the gNB, based on the delay information measured by the corresponding node.

公开(公告)号：US11689981B2

公开(公告)日：2023-06-27

申请号：US16993237

申请日：2020-08-13

Applicant: Intel Corporation

Inventor： Jaemin Han ,  Yi Guo ,  Candy Yiu ,  Bharat Shrestha

IPC: H04W36/18 ,  H04W36/00

CPC classification number: H04W36/18 ,  H04W36/0072

Abstract: An apparatus of a Radio Access Network (RAN) node, a system, and a method. The apparatus includes one or more processors to, during a non-dual connectivity (non-DC) radio link control (RLC) acknowledged mode (AM) handover of a user equipment (UE) from a source RAN node to the RAN node: process a message including information on at least one of an uplink (UL) COUNT value, a downlink (DL) COUNT value, or a hyper frame number (HFN) corresponding to UL or DL packet data convergence protocol (PDCP) data units (DUs) communicated between the UE and the source RAN node; determine the at least one of the UL COUNT value, the DL COUNT value or the HFN from the message; and process the PDCP DUs based on the at least one of the UL COUNT value, the DL COUNT value.