公开(公告)号：US10517130B2

公开(公告)日：2019-12-24

申请号：US16429342

申请日：2019-06-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang

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

Abstract: A method for data forwarding in a small cell system comprises: 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：US10476652B2

公开(公告)日：2019-11-12

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：US10462719B2

公开(公告)日：2019-10-29

申请号：US15114015

申请日：2015-01-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Xiaowan Ke

IPC: H04W36/08 ,  H04W4/10 ,  H04W8/08 ,  H04W4/08 ,  H04W76/40 ,  H04W76/27 ,  H04W36/00

Abstract: The present invention provides a method for supporting transmission of a group service, which includes: a MCE sends a pending notification message to a MME, wherein the pending notification message includes an identity (TMGI) of a GCSE service; and the MME sends the pending notification message to a GCSE server or a BM-SC. The present disclosure also provides a system for supporting transmission of the group service, a method for establishing a GCSE data bearer and a base station. By adopting the present disclosure, the risk of data loss due to a change of the data bearer is reduced, time delay of establishing the data bearer is reduced, air interface resource is effectively utilized, and power consumption of A UE is saved.

公开(公告)号：US20190222295A1

公开(公告)日：2019-07-18

申请号：US16363979

申请日：2019-03-25

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang Xu ,  Hong Wang ,  Huarui Liang

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

CPC classification number: H04B7/14 ,  H04W24/02 ,  H04W36/0072 ,  H04W72/0413 ,  H04W72/042 ,  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：US10312991B2

公开(公告)日：2019-06-04

申请号：US14373334

申请日：2013-01-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu

IPC: H04B7/155 ,  H04W48/16 ,  H04W64/00 ,  H04W8/06 ,  H04W84/04 ,  H04W84/00 ,  H04W36/00

Abstract: The present invention provides a method for RN switching and location updating, a method for updating location of UE and a method for paging UE. Application of the methods of the present invention, can present each UE under the relay from initiating a tracking area update process, reduce network congestion, and save system sources.

公开(公告)号：US10306529B2

公开(公告)日：2019-05-28

申请号：US15831045

申请日：2017-12-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Xiaowan Ke

IPC: H04W36/28 ,  H04B7/155 ,  H04W36/02 ,  H04L12/935 ,  H04W72/04 ,  H04L29/06 ,  H04W72/12 ,  H04W28/08 ,  H04W76/12 ,  H04W76/11 ,  H04W28/02 ,  H04W88/08 ,  H04W92/20 ,  H04W76/15

Abstract: A method and an apparatus for adjusting an amount of data to be assigned to a secondary base station in dual connectivity are provided. The method includes receiving, via an X2 interface between the first base station and a second base station from the second based station, first information on a buffer for an evolved universal terrestrial radio access network (E-UTRAN) radio access bearer (E-RAB), second information on a buffer for a terminal which is associated with the first base station and the second base station, and third information on packets lost in X2 transmission between the first base station and the second base station, and adjusting an amount of data to be assigned to the second base station based on the first information, the second information and the third information.

公开(公告)号：US10237041B2

公开(公告)日：2019-03-19

申请号：US15236368

申请日：2016-08-12

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang Xu ,  Hong Wang ,  Xiaowan Ke

IPC: H04M1/00 ,  H04L5/00 ,  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.

公开(公告)号：US20180279118A1

公开(公告)日：2018-09-27

申请号：US15992050

申请日：2018-05-29

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang Xu ,  Hong Wang

IPC: H04W8/26

CPC classification number: H04W8/26 ,  H04B7/15507 ,  H04W84/047 ,  H04W92/045

Abstract: The present invention provides a method for establishing an interface and communication between a relay node (RN) and a core network. The method may include: a base station sends an IP address of a control plane node of the core network to an RN; the RN initiates a process for establishing an interface with the control plane node corresponding to the IP address. Alternatively, the method may include: a base station sends an IP address and an identification of a control plane node of the core network to an RN; the base station sends an IP address and an identification of the RN to the control plane node of the core network; the RN and the node communicate with each other by using information of each other received from the base station. The method for establishing an interface and communication between an RN and a core network according to the present invention realizes transparent transmission of access layer signaling between a relay node and a core network via a base station, which reduces complexity of the process when the RN is in movements, makes it easier to support multiple access techniques, and reduces the complexity in network configurations.

公开(公告)号：US10009757B2

公开(公告)日：2018-06-26

申请号：US14373618

申请日：2013-01-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang

IPC: H04W4/00 ,  H04W8/26 ,  H04B7/155 ,  H04W84/04 ,  H04W92/04

CPC classification number: H04W8/26 ,  H04B7/15507 ,  H04W84/047 ,  H04W92/045

Abstract: The present invention provides a method for establishing an interface and communication between a relay node (RN) and a core network. The method may include: a base station sends an IP address and an identification of a control plane node of the core network to an RN; the base station sends an IP address and an identification of the RN to the control plane node of the core network; the RN and the node communicate with each other by using information of each other received from the base station. The method according to the present invention realizes transparent transmission of access layer signaling between a relay node and a core network via a base station, which reduces complexity of the process when the RN is in movements, makes it easier to support multiple access techniques, and reduces the complexity in network configurations.

公开(公告)号：US09992713B2

公开(公告)日：2018-06-05

申请号：US14411862

申请日：2013-06-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Huarui Liang ,  Hong Wang ,  Lixiang Xu

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

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

Abstract: Examples of the present disclosure provide a method for determining access control, applied in a handoff procedure of a UE. The method includes: if a current service is a LIPA@LN service, and if the UE is in a same local network before and after the handoff, keeping, by a node performing access control determination, service continuity of the LIPA@LN service; if the UE moves out of the local network after the handoff, deactivating, by the node performing the access control determination, the LIPA@LN service; if the current service is a SIPTO@LN only service or a SIPTO@CN@LN service, if the UE is in the same local network before and after the handoff, keeping, by the node performing the access control determination, the service continuity of the SIPTO@LN only service or the SIPTO@CN@LN service; if the UE moves out of the local network after the handoff, determining, by the node performing the access control determination, whether to keep the service continuity of the SIPTO@LN only service or the SIPTO@CN@LN service according to a network policy. According to the technical solution provided by the present disclosure, service continuity of the LIPA service or the SIPTO service can be maintained correctly.