公开(公告)号：US10314095B2

公开(公告)日：2019-06-04

申请号：US15425892

申请日：2017-02-06

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang Xu ,  Hong Wang

IPC: H04W72/04 ,  H04W76/15 ,  H04W36/00 ,  H04W36/38 ,  H04W76/11 ,  H04W28/18

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：US10292083B2

公开(公告)日：2019-05-14

申请号：US14761908

申请日：2014-01-17

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W36/32 ,  H04W36/00 ,  H04W4/08

Abstract: The present application discloses a self-optimizing method for a UE group, which includes: a. a base station of a cell in the system adjusts mobility parameters of a specified UE group from the cell to another cell, and notifies the base station that the another cell belongs to of a relative value of mobility parameter change of the specified UE group in the cell; or, the base station of the cell requests base station of the another cell to adjust the mobility parameters of the specified UE group to the cell, and carry the relative value of mobility parameter change; b. the base station of the another cell determines which manner to take to adjust the mobility parameters of the specified UE group according to the relative value of the mobility parameter change received.

公开(公告)号：US10243644B2

公开(公告)日：2019-03-26

申请号：US14433371

申请日：2013-07-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Huarui Liang

IPC: H04B7/14 ,  H04W24/02 ,  H04W36/00 ,  H04W72/04 ,  H04W76/11 ,  H04W76/27 ,  H04W88/10

Abstract: A method enabling an relay node (RN) to support multiple wireless access techniques is provided, which includes: a mobility management element (MME) requests a DeNB to establish evolved radio access bearers (ERAB) of EUTRAN and indicates access network information that will be transmitted by each of the ERABs; the DeNB requests an RN to establish radio bearers (RB) and indicates the access network information that will be transmitted by each of the RBs. The above method makes fewer modifications to conventional networks and techniques, guarantees service quality provided for a UE accessing an LTE system, and enables an RN to support access of UEs using multiple access techniques.

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：US20180132303A1

公开(公告)日：2018-05-10

申请号：US15864253

申请日：2018-01-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang XU ,  Xiaowan Ke ,  Hong Wang

IPC: H04W36/00

CPC classification number: H04W76/25 ,  H04W36/0055 ,  H04W36/0058 ,  H04W36/00837 ,  H04W36/245 ,  H04W36/32 ,  H04W76/18

Abstract: A method for transmitting a handover report and for transmitting a radio link failure (RLF) report are provided. The method includes obtaining, by a target base station, at least one of location information of a source cell or location information of a user equipment (UE) history cell during a handover procedure, and transmitting, by the target base station, the handover report to at least one of a source base station or to a base station where the UE history cell is located, according to the obtained at least one of location information of the source cell or the location information of the UE history cell, wherein the handover report including at least one of an unnecessary handover report, a too early handover report, or a handover to wrong cell report.

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.