公开(公告)号：US20140179325A1

公开(公告)日：2014-06-26

申请号：US14140253

申请日：2013-12-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Huarui Liang

IPC: H04W36/00

CPC classification number: H04W36/0055 ,  H04W36/0033 ,  H04W76/19 ,  H04W84/045

Abstract: A method for supporting fast recovery of a User Equipment (UE) includes performing, by a serving base station, UE context synchronization for one or more other base stations in a related small cell cluster when a UE accesses the serving base station, performing, by a base station that the UE performs a radio resource control (RRC) connection re-establishment, the RRC connection re-establishment for the UE according to UE context saved in a synchronization process. The present also discloses another method and system for supporting UE fast recovery. By applying the technical solution disclosed by the present disclosure, when the UE moves in a small cell scenario, the UE can be recovered quickly in the case of a failure, so as to avoid the UE returns to an idle mode, avoid data loss, guarantee business continuity, and improve UE experience.

Abstract translation: 一种用于支持用户设备（UE）快速恢复的方法包括：当UE访问服务基站时，由服务基站执行相关小型小区集群中的一个或多个其他基站的UE上下文同步， UE进行无线资源控制（RRC）连接再建立的基站，根据在同步处理中保存的UE上下文的UE的RRC连接再建立。 本发明还公开了用于支持UE快速恢复的另一种方法和系统。 通过应用本公开所公开的技术方案，当UE在小小区情况下移动时，在故障的情况下可以快速恢复UE，以避免UE返回空闲模式，避免数据丢失， 保证业务连续性，提高UE体验。

公开(公告)号：US08625523B2

公开(公告)日：2014-01-07

申请号：US13936817

申请日：2013-07-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Xiaoqiang Li

IPC: H04W4/00

CPC classification number: H04W64/00 ,  H04W8/12 ,  H04W60/04

Abstract: Methods and apparatus are provided for path switching between an evolved Node B (eNB) and a Mobile Management Entity (MME). The eNB transmits a Path Switch Request message informing that a User Equipment (UE) has changed cells, to the MME. The Path Switch Request message includes an eNB UE S1AP ID, a Tracking Area Identifier (TAI), and cell Identifier (ID). The eNB UE S1AP ID uniquely identifies UE association over an S1 interface within the eNB. The eNB receives a Path Switch Request Acknowledge message including an MME UE S1AP ID and the eNB UE S1AP ID, from the MME. The MME UE S1AP ID uniquely identifies UE association over an S1 interface within the MME. The TAI corresponds to a cell in which the UE is located.

Abstract translation: 提供了用于演进节点B（eNB）和移动管理实体（MME）之间的路径切换的方法和装置。 eNB向MME发送通知用户设备（UE）已经改变小区的路径切换请求消息。 路径切换请求消息包括eNB UE S1AP ID，跟踪区域标识符（TAI）和小区标识符（ID）。 eNB UE S1AP ID通过eNB内的S1接口唯一地标识UE关联。 eNB从MME接收到包括MME UE S1AP ID和eNB UE S1AP ID的路径切换请求确认消息。 MME UE S1AP ID通过MME内的S1接口唯一地标识UE关联。 TAI对应于UE所在的小区。

公开(公告)号：US12262298B2

公开(公告)日：2025-03-25

申请号：US17733523

申请日：2022-04-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Weiwei Wang ,  Hong Wang ,  Lixiang Xu

IPC: H04W4/00 ,  H04W40/04 ,  H04W40/12 ,  H04W40/24 ,  H04W76/15

Abstract: A data transfer method, apparatus and device, and a computer-readable storage medium are provided. The method executed by a third node includes sending a first request message to a fourth node, and receiving a first response message sent by the fourth node, the first response message being indicative of connection of a first node to the fourth node through a second node. By the method, the connection of the first node to the fourth node through the second node is achieved.

公开(公告)号：USRE50334E1

公开(公告)日：2025-03-11

申请号：US15931232

申请日：2020-05-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Huarui Liang

IPC: H04L5/00 ,  H04L9/40 ,  H04W12/04 ,  H04W56/00 ,  H04W76/27

Abstract: The present application discloses a method for synchronizing encryption information between a SCell and UE, which includes that: the SCell transmits a COUNT value of RB established for the UE to a PCell; the PCell transmits the COUNT value received from the SCell to the UE; and the PCell receives a COUNT value of RB established on the SCell that is saved by the UE from the UE. Or, the SCell and the UE may directly exchange the COUNT value of RB. By the present application, the security and correctness of data can be ensured.

公开(公告)号：US12250598B2

公开(公告)日：2025-03-11

申请号：US17424041

申请日：2020-03-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Weiwei Wang

IPC: H04W36/00 ,  H04W36/08 ,  H04W48/02 ,  H04W48/16 ,  H04W76/19 ,  H04W84/10

Abstract: A method for supporting non-public network (NPN), by a first central unit (CU) of a first base station, in a wireless communication system, the method comprising: receiving, from a first distributed unit (DU) of the first base station, an F1 setup request comprising at least one of a first closed access network (CAG) identifier list or a first network identifier (NID) list, transmitting, to an access and mobility management function (AMF), an NG setup request comprising at least one of the first CAG identifier list or the first NID list, receiving, from the AMF, an NG setup response, and transmitting, to the first DU, an F1 setup response.

公开(公告)号：US12238720B2

公开(公告)日：2025-02-25

申请号：US18532205

申请日：2023-12-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Weiwei Wang ,  Hong Wang ,  Lixiang Xu

IPC: H04W72/20

Abstract: The present disclosure provides an information configuration method, an information interaction method, and an address information update method. The information configuration method may be performed by a first node, and may include: transmitting, to a second node, a first configuration request message comprising a request for a bearer context setup; receiving, from the second node, a first configuration response message comprising a response to the bearer context setup request in the first configuration request message; and establishing a bear context based on the first configuration response message, wherein the first configuration request message comprises at least one of information related to data profile, or profile indication information.

公开(公告)号：US12156266B2

公开(公告)日：2024-11-26

申请号：US17290420

申请日：2019-11-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Weiwei Wang ,  Hong Wang ,  Xiaoning Ma

IPC: H04W76/12 ,  H04L1/1607 ,  H04L1/1867 ,  H04W36/00 ,  H04W36/32 ,  H04W48/18

Abstract: The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-generation (4G) communication system such as long term evolution (LTE). The embodiments of the disclosure provide a session setup method, including: receiving a message for creating a session management context; selecting a user plane functional entity (UPF) for redundant session processing in response to the message; and setting up a packet data unit (PDU) session corresponding to the UPF. There are further provided a session setup method for a base station and related devices. The above technical solutions can realize reliability of service transmission.

公开(公告)号：US12127023B2

公开(公告)日：2024-10-22

申请号：US17280492

申请日：2019-09-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Weiwei Wang

IPC: H04W24/10 ,  H04L41/0803

CPC classification number: H04W24/10 ,  H04L41/0803

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present application provides a configuration method, a reporting method of a minimization of drive tests (MDT) measurement and an access network device, wherein the configuration method comprises: receiving, by a user node of an access network (CU-UP), a configuration information of MDT from an operation and maintenance node; transmitting, by the CU-UP, the configuration information of MDT to a control node of an access network (CU-CP); receiving, by the CU-UP, the configuration information of MDT for UE from the CU-CP. The MDT under a separate architecture is achieved by the present application.

公开(公告)号：US11968569B2

公开(公告)日：2024-04-23

申请号：US17298826

申请日：2020-01-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Weiwei Wang ,  Hong Wang ,  Lixiang Xu

IPC: H04W36/00 ,  H04W36/30

CPC classification number: H04W36/0061 ,  H04W36/0033 ,  H04W36/00837 ,  H04W36/305

Abstract: The present disclosure provides a connection reestablishment method, including: receiving a reestablishment message from a second node, the reestablishment message including information related to a configuration of the second node; performing a configuration based on the received reestablishment message; and transmitting a reestablishment complete message to the second node. The present disclosure also provides a context acquisition method, an interface management method, a UE context management method, a UE context acquisition method, a method for triggering UE to reestablish a connection, and various nodes and computer-readable medium that perform the above methods.

公开(公告)号：US11924651B2

公开(公告)日：2024-03-05

申请号：US17451436

申请日：2021-10-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Weiwei Wang

IPC: H04W24/02 ,  H04W24/04 ,  H04W36/30 ,  H04W76/18 ,  H04W76/19

CPC classification number: H04W24/02 ,  H04W24/04 ,  H04W36/305 ,  H04W76/18 ,  H04W76/19

Abstract: The present disclosure relates to a base station that supports self-configuration and self-optimization and a method thereof. A method performed by a target base station in a mobile communication system includes: receiving a radio link failure (RLF) report of a user equipment (UE) from a source base station or a third base station; detecting a reason for an occurrence of a failure based on the RLF report of the UE; and transmitting a message to the source base station based on the detected reason for the occurrence of the failure.