公开(公告)号：US10237790B2

公开(公告)日：2019-03-19

申请号：US15997580

申请日：2018-06-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Huarui Liang ,  Hong Wang ,  Lixiang Xu

IPC: H04W36/00 ,  H04W36/12 ,  H04W8/08

Abstract: Examples of the present disclosure provide a method for determining access control, applied in a handoff procedure of a UE. The method include receiving, from a source base station, a first message including a first local home network (LHN) identifier (ID) and an address of a local gateway; receiving, from a target base station, a second message including a second LHN ID; determining whether a LHN ID is changed based on the first LHN ID and a second LHN ID; and disconnecting a selected IP traffic offload (SIPTO) service if the LHN ID is changed. According to a technical solution provided by the present disclosure, service continuity of the LIPA service or the SIPTO service can be maintained correctly.

公开(公告)号：US10219185B2

公开(公告)日：2019-02-26

申请号：US15657857

申请日：2017-07-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Huarui Liang

IPC: H04W36/00 ,  H04W24/02 ,  H04W36/14

Abstract: A method for supporting indication of a failure event to a source access system is provided. The method includes notifying, by the source access system, information of a source cell to a target access system, routing, by the target access system, a message to the base station or the base station controller of the source access through a core network by use of the information of the source cell received from the source access system when the target access system needs to transmit a message to the source access system. By use of the method provided by the present disclosure, a problem of mobility robustness optimization (MRO) among different radio access technology (RAT) may be notified to the source access system, so as to avoid impact for a terminal, reduce operator configuration.

公开(公告)号：US10149216B2

公开(公告)日：2018-12-04

申请号：US15711485

申请日：2017-09-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xiaowan Ke ,  Gert Jan Van Lieshout ,  Lixiang Xu ,  Hong Wang

IPC: H04W36/08 ,  H04W76/14 ,  H04W12/06 ,  H04W40/36 ,  H04W48/02 ,  H04W12/08 ,  H04W8/24 ,  H04W48/16 ,  H04W8/20 ,  H04W88/08

Abstract: The present disclosure provides a method for supporting UE access control. A base station is informed by a ProSe Function via a MME or informed by the MIME of information indicating whether a UE is authorized for a D2D service. The base station performs an access control to the UE according to the information indicating whether the UE is authorized for the D2D service. The present disclosure further provides a method in which a source base station informs a target base station of the information indicating whether the UE is authorized for a D2D service. The target base station performs an access control according to the information.

公开(公告)号：US10129742B2

公开(公告)日：2018-11-13

申请号：US15676386

申请日：2017-08-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Huarui Liang

IPC: H04W12/04 ,  H04W76/27 ,  H04L5/00 ,  H04W56/00 ,  H04L29/06

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：US20180288661A1

公开(公告)日：2018-10-04

申请号：US15997580

申请日：2018-06-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Huarui Liang ,  Hong Wang ,  Lixiang Xu

IPC: H04W36/00 ,  H04W36/12

CPC classification number: H04W36/0077 ,  H04W8/082 ,  H04W36/12 ,  H04W36/125

Abstract: Examples of the present disclosure provide a method for determining access control, applied in a handoff procedure of a UE. The method include receiving, from a source base station, a first message including a first local home network (LHN) identifier (ID) and an address of a local gateway; receiving, from a target base station, a second message including a second LHN ID; determining whether a LHN ID is changed based on the first LHN ID and a second LHN ID; and disconnecting a selected IP traffic offload (SIPTO) service if the LHN ID is changed. According to a technical solution provided by the present disclosure, service continuity of the LIPA service or the SIPTO service can be maintained correctly.

公开(公告)号：US09888412B2

公开(公告)日：2018-02-06

申请号：US15114987

申请日：2015-01-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W36/00 ,  H04W76/06 ,  H04W72/04 ,  H04W76/02

CPC classification number: H04W36/0072 ,  H04W36/0055 ,  H04W72/0406 ,  H04W76/15 ,  H04W76/30 ,  H04W76/34

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：US09883423B2

公开(公告)日：2018-01-30

申请号：US14879096

申请日：2015-10-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Huarui Liang

IPC: H04W24/00 ,  H04W36/00 ,  H04W12/06 ,  H04W36/08 ,  H04W24/10 ,  H04W36/30

Abstract: A method and a system for processing a Radio Link Failure (RLF) report, where when a User Equipment (UE) encounters an RLF in a first cell controlled by a first evolved base station and selects a second cell controlled by a second evolved base station to re-establish an Radio Resource Connection (RRC), are provided. The method includes sending, by the second evolved base station, the RLF report to every corresponding evolved base station according to the PCI of the first cell having been received from the UE, where the PCI of the first cell, the PCI of a second cell, the CRNTI of the UE in the first cell, and UE authentication information are carried in the RLF report, and authenticating, by every evolved base station the UE according to the UE authentication information. Another method for processing an RLF report, and two methods for adjusting a mobile parameter, are also provided.

公开(公告)号：US09743332B2

公开(公告)日：2017-08-22

申请号：US14440332

申请日：2013-11-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Gert Jan Van Lieshout ,  Hong Wang

IPC: H04W4/00 ,  H04W36/32 ,  H04W36/00

CPC classification number: H04W36/32 ,  H04W36/0033 ,  H04W36/0083

Abstract: By the method of the present invention, the automatic adjustment of mobility parameter between different frequencies or different access systems becomes available and can be supported in the case of the self-optimization of mobile load balance and the self-optimization of mobile robustness, so as to improve the performance of mobile communication system.

公开(公告)号：US20170150544A1

公开(公告)日：2017-05-25

申请号：US15425892

申请日：2017-02-06

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang Xu ,  Hong Wang

IPC: H04W76/02 ,  H04W72/04

CPC classification number: H04W76/15 ,  H04W28/18 ,  H04W36/0011 ,  H04W36/0055 ,  H04W36/0069 ,  H04W36/38 ,  H04W72/042 ,  H04W72/0426 ,  H04W76/11

Abstract: The present application discloses a method for data forwarding in a small cell system, comprising: sending by a master base station (MeNB) to a target secondary base station (SeNB) information of a source SeNB or a source SeNB cell where a user equipment (UE) is located; determining by the target SeNB whether a direct data forwarding is feasible; notifying, by the target SeNB, the MeNB whether the direct data forwarding is feasible; and determining by the MeNB whether it is a direct data forwarding or an indirect data forwarding. The method for data forwarding provided in the present application may support both the direct data forwarding and the indirect data forwarding based on actual situation of the network, reduce data loss and failure of data forwarding, and improve the efficiency of data forwarding.

公开(公告)号：US09578549B2

公开(公告)日：2017-02-21

申请号：US14399802

申请日：2013-05-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Huarui Liang ,  Xiaowan Ke

IPC: H04W36/00 ,  H04W76/02 ,  H04W24/10 ,  H04W24/04 ,  H04W36/08

CPC classification number: H04W36/0005 ,  H04W24/04 ,  H04W24/10 ,  H04W36/08 ,  H04W76/16

Abstract: A method and apparatus for supporting Radio Link Failure (RLF) reason detection or handover failure reason detection are provided. The method includes detecting the Mobility Robustness Optimization (MRO) problems without RLF reporting in a 3rd Generation (3G) or a 2nd Generation (2G) mobile communication system, the impact on a 3G or a 2G mobile communication system is reduced, and then correct self-optimization is performed to improve the performance of the mobile communication system.

Abstract translation: 提供了一种用于支持无线链路故障（RLF）原因检测或切换失败原因检测的方法和装置。 该方法包括在第三代（3G）或第二代（2G）移动通信系统中检测无RLF报告的移动性鲁棒性优化（MRO）问题，减少对3G或2G移动通信系统的影响，然后正确 执行自优化以改善移动通信系统的性能。