公开(公告)号：US10904809B2

公开(公告)日：2021-01-26

申请号：US15764513

申请日：2016-09-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Xiaowan Ke

IPC: H04W36/08 ,  H04W36/00 ,  H04L5/00 ,  H04W76/32 ,  H04W76/30 ,  H04W36/22 ,  H04W8/08 ,  H04W76/34 ,  H04W88/08 ,  H04W88/16

Abstract: The present disclosure discloses a method for supporting release of a SIPTO bearer or a LIPA bearer in dual-connectivity architecture. The method is implemented as follows. A MeNB sends a message to a SeNB. The message contains indication information for SIPTO at local network bearer deactivation or LIPA bearer deactivation. The indication information may indicate the SeNB to notify a collocated LGW of releasing PDN connection of SIPTO at local network or the PDN connection of LIPA. After receiving the message, the SeNB removes radio and control plane related resources associated to the UE context or the SIPTO at local network bearer or the LIPA bearer, and if the message contains the indication information for SIPTO@LN bearer deactivation or LIPA bearer deactivation, sends an internal signaling to the collocated LGW to indicate the collocated LGW to release the PDN connection of the SIPTO at local network or the PDN connection of the LIPA. The SeNB is a SeNB supporting functions of the LGW that supports operations of the SIPTO at local network or the operations of the LIPA. By the method of the present disclosure, the SIPTO bearer or the LIPA bearer in the dual-connectivity architecture can be released, thereby avoiding inaccurate operations in an access network, ensuring that the SIPTO bearer or the LIPA bearer can be released duly and accurately, and avoiding inaccurate release of the SIPTO bearer or the LIPA bearer.

公开(公告)号：US10708840B2

公开(公告)日：2020-07-07

申请号：US16091417

申请日：2017-04-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W36/30 ,  H04W36/00 ,  H04W76/19 ,  H04W36/08 ,  H04W76/20

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). According to an embodiment of the present disclosure, a circuit switched fallback (CSFB) method is provided. The method comprising: receiving, by a first base station, a user equipment (UE) context modification request message from a mobility management entity (MME), wherein the UE context modification request message includes a CSFB indicator; receiving, by the first base station, a radio link failure (RLF) indication message from a second base station; and determining, by the first base station, whether to trigger a handover procedure.

公开(公告)号：US10609678B2

公开(公告)日：2020-03-31

申请号：US16301412

申请日：2017-05-15

Applicant: Samsung Electronics Co., Ltd

Inventor： Xiaowan Ke ,  Hong Wang ,  Lixiang Xu

IPC: H04W68/02 ,  H04W76/10 ,  H04W68/00 ,  H04W76/25 ,  H04W76/28 ,  H04W76/19

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.The present application provides a method for light connection control for a User Equipment (UE), comprising the following steps of: acquiring, by a first radio access network node, light connection information for a UE; storing, by the first radio access network node, the acquired light connection Information; and, performing, by the first radio access network node, light connection control of the UE based on the acquired light connection information for the UE. By adopting the technical scheme disclosed in the present application, the signaling overhead can be saved, and the delay of the UE access network can be reduced.

公开(公告)号：US10432385B2

公开(公告)日：2019-10-01

申请号：US14773541

申请日：2014-03-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xiaowan Ke ,  Hong Wang ,  Lixiang Xu

IPC: H04L5/14 ,  H04W8/18 ,  H04W72/04 ,  H04W72/08 ,  H04W76/14 ,  H04W8/00

Abstract: The present application provides a method for implementing a device to device (D2D) communication between UEs, wherein a UE and a network obtain each other's capability of Proximity Service (ProSe); the UE may activate the capability of ProSe that both the UE and the network support and initiates a request for a ProSe service with another UE to the network; the network authenticates the request for the ProSe service according to subscription information for the UE's device to device communication; and the network establishes a device to device PDN bearer between the two UEs for the request for the ProSe service passing the authentication. The present application further provides a user equipment. The present application is the basis for implementing the ProSe, the application thereof can satisfy service demands of public safety communication and realize network resource optimization configuration.

公开(公告)号：US10368275B2

公开(公告)日：2019-07-30

申请号：US15887458

申请日：2018-02-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W36/00 ,  H04W72/04 ,  H04W76/30 ,  H04W76/34 ,  H04W76/15

Abstract: The present application discloses a method for a master eNB (MeNB) handover or a secondary eNB (SeNB) handover in a small cell system, comprising: sending by a source MeNB information of a source secondary cell (Scell) to a target MeNB; sending by the target MeNB a message to the source MeNB, the message notifying the source MeNB to suspend data transmission on a bearer of the SeNB. Until a message of data transmission resuming is received, the data transmission/reception is started to continue. The method for a MeNB handover or a SeNB handover provided in the present application may reduce the reconfiguration of the bearer for the UE, avoid releasing the bearer by error, and improve the system throughput and the data rate of transmission.

公开(公告)号：US10368268B2

公开(公告)日：2019-07-30

申请号：US14910494

申请日：2014-08-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W28/10 ,  H04W16/08 ,  H04W16/32 ,  H04W92/20 ,  H04W28/02 ,  H04W8/08 ,  H04W76/10 ,  H04W36/12 ,  H04W8/14 ,  H04W84/04

Abstract: The present disclosure discloses methods, systems and devices for supporting local breakout in a small cell architecture. A MME sends information of a local breakout bearer for a UE to a MeNB, and the MeNB determines a local home network to which the local breakout bearer belongs according to the received information. When the MeNB is to switch the local breakout bearer between different eNBs, the MeNB selects an eNB in the local home network to which the local breakout bearer belongs as a target eNB. By the present disclosure, the continuity of local breakout traffic may be ensured when a User Equipment (UE) moves in a small cell scenario, thereby avoiding data loss and improving user experiences. Further, a local breakout bearer may be released timely and reasonably, thereby saving system resources.

公开(公告)号：US10205582B2

公开(公告)日：2019-02-12

申请号：US15115629

申请日：2015-01-29

Applicant: Samsung Electronics Co., Ltd

Inventor： Yu Qiu ,  Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W16/32 ,  H04L5/00 ,  H04W92/20

Abstract: The present invention relates to the technical field of radio communications, and particularly to a method and apparatus for processing activation/deactivation of inter-eNodeB carrier aggregation. Embodiments of the present invention provide a method for processing activation/deactivation of inter-eNodeB carrier aggregation, comprising the steps of: receiving, by UE, an MAC CE for activation/deactivation of an SCell sent by a master eNodeB or a secondary eNodeB; determining, by the UE, the corresponding SCell; and performing, by the UE, activation/deactivation to the corresponding SCell according to the indication information in the MAC CE for activation/deactivation.

公开(公告)号：US10200912B2

公开(公告)日：2019-02-05

申请号：US15021665

申请日：2014-09-12

Applicant: Samsung Electronics Co., Ltd

Inventor： Hong Wang ,  Lixiang Xu ,  Xiaowan Ke

IPC: H04W28/08 ,  H04W76/10 ,  H04W76/12 ,  H04W84/04

Abstract: Examples of the present disclosure describe a method for setting up local breakout bearers, including: sending, by a master base station (MeNB), an IP address of a local gateway (LGW) corresponding to a neighbor base station; receiving, by the MeNB, correlation identifier information associated with the LGW; wherein the correlation identifier information comprises a tunnel number indicating a local breakout bearer is to be set up; forwarding, by the MeNB, the correlation identifier information; and setting up, by the neighbor base station, the local breakout bearer with the LGW according to the correlation identifier information. Examples of the present disclosure also describe another method for setting up local breakout bearers and a device corresponding to the method. When the technical scheme described in various examples of the present disclosure is employed, the service local breakout is supported in the small cell architecture, therefore the load on the core network backhaul can be reduced, the throughput of user data can be improved, and the data loss can be avoided.

公开(公告)号：US09986469B2

公开(公告)日：2018-05-29

申请号：US14878667

申请日：2015-10-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Xiaowan Ke

IPC: H04W36/00 ,  H04W76/04 ,  H04W76/06 ,  H04L5/00 ,  H04W76/02

CPC classification number: H04W36/0027 ,  H04L5/0053 ,  H04W76/11 ,  H04W76/20 ,  H04W76/34

Abstract: The present application discloses a switch supporting method comprising: an eNB sends a path switching request message to an MME to notify the MME of information on a bearer remaining unchanged; the MME reserves the bearer remaining unchanged and does not trigger a deactivation process for the bearer remaining unchanged; the MME sends a modify bearer request message to an SGW. With the present application, data loss can be avoided and service continuity is ensured when a UE moves in a small cell scenario.

公开(公告)号：US20170048725A1

公开(公告)日：2017-02-16

申请号：US15236368

申请日：2016-08-12

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang Xu ,  Hong Wang ,  Xiaowan Ke

IPC: H04W16/26 ,  H04L5/00 ,  H04W24/02

CPC classification number: H04L5/0055 ,  H04W24/02 ,  H04W88/08

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). An apparatus implements a method for self-configuration and self-optimization. A method for operating a base station (BS) in a wireless communication network comprises transmitting a message including information on coverage modification indicating whether the message is for pre-notification of cell re-configuration, to another BS, and receiving an acknowledgement message from the another BS.

Abstract translation: 本公开涉及提供用于支持更高数据速率的第5代（5G）或5G通信系统超越第四代（4G）通信系统，例如长期演进（LTE）。 一种装置实现了自配置和自优化的方法。 一种用于在无线通信网络中操作基站（BS）的方法包括：发送包括指示消息是否用于小区重新配置的预先通知的覆盖修改的信息的消息，以及从另一个BS接收确认消息 另一个BS。