公开(公告)号：US11653253B2

公开(公告)日：2023-05-16

申请号：US17513238

申请日：2021-10-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xiaowan Ke ,  Hong Wang ,  Lixiang Xu

IPC: H04W28/02 ,  H04W76/10

CPC classification number: H04W28/0268 ,  H04W76/10

Abstract: The disclosure provides a method and an apparatus for operating and controlling a data flow. The method includes steps of: acquiring, by a first node, information on a Quality-of-Service (QoS) flow and/or resource information on a node; and deciding, by the first node, whether to accept the QoS flow and/or performance result information for the QoS flow, according to the acquired resource information on the node and/or the acquired information on the QoS flow.

公开(公告)号：US11617109B2

公开(公告)日：2023-03-28

申请号：US16476203

申请日：2018-01-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xiaowan Ke ,  Hong Wang ,  Lixiang Xu

IPC: H04W36/00 ,  H04W8/08 ,  H04W28/02 ,  H04W36/14 ,  H04W88/16

Abstract: A radio access network handover method of a base station in a 5G radio access network (5G-RAN) is are disclosed. The method comprising: determining handing over a user equipment (UE) to an Evolved Universal Terrestrial Radio Access Network (E-UTRAN); transmitting a handover requirement message to an Access and Mobility Management Function (AMF); receiving a handover command message from the AMF and transmitting the handover command message to the UE, the handover message such that the UE is handed over from the 5G-RAN to the E-UTRAN; and performing indirect data forwarding to a base station in the E-UTRAN.

公开(公告)号：US11558789B2

公开(公告)日：2023-01-17

申请号：US16090556

申请日：2017-03-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xiaowan Ke ,  Hong Wang ,  Lixiang Xu

IPC: H04W36/00 ,  H04W76/16 ,  H04W36/38 ,  H04W36/14 ,  H04W84/12 ,  H04W92/20

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). The present invention provides a method for controlling Wireless Local Area Network (WLAN) aggregation and an associated equipment. The method comprises the following steps of: acquiring, by a first radio access network node, WLAN information about a User Equipment (UE); and, controlling, by the first radio access network node, WLAN aggregation for the UE according to the acquired WLAN information. A second radio access network node decides whether to maintain a WT and/or whether to establish WLAN aggregation for the UE when the UE moves to a first radio access network; and, the second radio access network node transmits information about whether to maintain the WT and/or indication information about whether to establish the WLAN aggregation for the UE. The WT receives UE context reference information transmitted by the first radio access network node; and, the WT indexes a UE context according to the received UE context reference information. With the present invention, the WLAN aggregation performance in a UE mobility scenario can be improved.

公开(公告)号：US11516816B2

公开(公告)日：2022-11-29

申请号：US16834851

申请日：2020-03-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Fuyuan Li ,  Hong Wang ,  Weiwei Wang ,  Lixiang Xu

IPC: H04W24/10 ,  H04W72/04 ,  H04W72/08 ,  H04L5/00

Abstract: The present disclosure provides a method and a device for performing remote interference management. The method comprises receiving, from a victim gNB, at least one RIM-reference signal (RS); transmitting, from a distributed unit (DU) of the aggressor gNB to a central unit (CU) of the aggressor gNB, a message comprising RIM information; and determining to stop monitoring the at least one RIM-RS based on the RIM information.

公开(公告)号：US11265706B2

公开(公告)日：2022-03-01

申请号：US16587682

申请日：2019-09-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Huarui Liang ,  Lixiang Xu

IPC: H04W4/00 ,  H04W12/0431 ,  H04W72/04

Abstract: The present application discloses a method for configuring and transmitting a key, which includes that: a) a serving cell (PCell) of UE determines a key (KeNB) used by a SCell and transmits the KeNB to the SCell; and b) the PCell transmits configuration information for configuring the SCell to the UE after receiving a response message from the SCell, and receives a response message from the UE. Or, the method includes that: a SCell of UE transmits a cell key request to an MME and receives key information from the MME; and the SCell transmits the key information received from the MME to the UE, and receives a response message from the UE. By the present application, data of the SCell is transmitted after being encrypted, so as to avoid a case that the data is decoded by other users, and further guarantee the security of the data.

公开(公告)号：US11212048B2

公开(公告)日：2021-12-28

申请号：US16611212

申请日：2018-05-04

Applicant: Samsung Electronics Co., Ltd

Inventor： Weiwei Wang ,  Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04L5/00 ,  H04W76/22 ,  H04W72/04

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 disclosure discloses a system, a data transmission method and a network equipment supporting a Packet Data Convergence Protocol (PDCP) duplication function. The data transmission method supporting a PDCP duplication function comprises the steps of: transmitting, by a first network equipment, a configuration instruction message of a radio bearer supporting a PDCP duplication function to a second network equipment; and, performing, by the first network equipment and the second network equipment, transmission of a data packet of the radio bearer configured with the PDCP duplication function. In the present disclosure, by an interface between the first network equipment and the second network equipment, the transmission of duplicated data packets between the first network equipment and the second network equipment is realized, and the reliability of data transmission is improved. The present disclosure also discloses a method and device for transferring supplementary uplink carrier configuration information and a method and device for performing a connection mobility adjustment.

公开(公告)号：US11206591B2

公开(公告)日：2021-12-21

申请号：US16701635

申请日：2019-12-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang

IPC: H04W36/00 ,  H04W36/08 ,  H04W76/12 ,  H04W28/02 ,  H04W76/11 ,  H04W48/16 ,  H04W8/08 ,  H04W80/10

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. A method and equipment for handover are provided. The method includes informing, by a source base station, a source core network whether a direct data forwarding path is available, determining, by the source core network, whether to use direct data forwarding or indirect data forwarding, informing, by the source core network, a target core network of information of direct data forwarding, indirect data forwarding or data forwarding being not possible, informing, by the target core network, a target base station of the information of direct data forwarding, indirect data forwarding or data forwarding being not possible, and allocating, by the target base station, tunnel information for data forwarding.

公开(公告)号：US11160002B2

公开(公告)日：2021-10-26

申请号：US16638349

申请日：2018-08-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Xiaowan Ke ,  Weiwei Wang

IPC: H04W36/30 ,  H04W36/00

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 invention provides a method of a base station for supporting an inter-system handover from an evolved packet system (EPS) system to a 5th generation (5G) system. The method comprises receiving, from an access and mobility management function (AMF), a handover request message including E-UTRAN radio access bearer (E-RAB) information and quality of service (Qos) flow information, identifying whether a protocol data unit (PDU) session is accepted or not, determining whether a data forwarding for at least one Qos flow associated with the PDU session is accepted or not based on the E-RAB information and the Qos flow information in case that the PDU session is accepted and transmitting, to the AMF, a handover request acknowledgement message including information on the at least one Qos flow based on the determination. The method solves the data forwarding problem during the movement of a UE between an LTE system and a 5G system, so that the loss of data is avoided and the continuity of services is ensured.

公开(公告)号：US20210321474A1

公开(公告)日：2021-10-14

申请号：US17302617

申请日：2021-05-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang

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

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：US11044006B2

公开(公告)日：2021-06-22

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 ,  H04W24/02 ,  H04W76/27 ,  H04W76/11 ,  H04W36/00 ,  H04W72/04 ,  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.