公开(公告)号：US09526041B2

公开(公告)日：2016-12-20

申请号：US14385492

申请日：2013-03-15

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W36/00 ,  H04W36/04 ,  H04W84/04

CPC classification number: H04W36/0061 ,  H04W36/04 ,  H04W84/045

Abstract: The present invention discloses a method for supporting a handover to a closed subscriber group (CSG) cell or a hybrid cell in a mobile communication system, and the method includes: sending, by a radio access network (RAN), information indicating that authorized public land mobile network (PLMN) information changes to a user equipment (UE); sending, by the UE, all PLMN identifiers (IDs) broadcasted by a target CSG cell to a source RAN in a measurement report; and selecting, by the source RAN or a source core network(CN), a target PLMN for the UE.

Abstract translation: 本发明公开了一种在移动通信系统中支持向封闭用户组（CSG）小区或混合小区进行切换的方法，该方法包括：由无线接入网（RAN）发送指示授权公众 陆地移动网络（PLMN）信息改变为用户设备（UE）; 由UE将由目标CSG小区广播的所有PLMN标识符（ID）发送到测量报告中的源RAN; 以及由所述源RAN或源核心网（CN）选择所述UE的目标PLMN。

公开(公告)号：US20160174285A1

公开(公告)日：2016-06-16

申请号：US14909726

申请日：2014-08-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Xiaowan Ke ,  Lixiang Xu ,  Hong Wang

IPC: H04W76/04 ,  H04W8/02

CPC classification number: H04W76/25 ,  H04W8/02 ,  H04W8/06 ,  H04W8/12 ,  H04W36/0069 ,  H04W36/08 ,  H04W36/12 ,  H04W76/22 ,  H04W84/045 ,  H04W92/045

Abstract: Embodiments of the present disclosure provide a method for maintaining service continuity in heterogeneous communication system, including: when a bearer is established on a SeNB/SeNB's cell for a UE or the UE tracking area is updated due to a bearer transfer, a MeNB sends a MME a serving identifier of a SeNB/SeNB's cell where the UE is located or a serving identifier of a eNB/cell which a user plane bearer of the UE is on; the MME determines a TA identifier/eNB identifier which the UE bearer is in, including a TA identifier/eNB identifier of the SeNB's cell where the UE is located, according to received serving identifier. On one hand, the MME may determine whether a UE moves out of the local home network according to the TA of the UE, and whether it is necessary to release the SIPTO@LN bearer. On the other hand, the MME may select the SGW according to the TA identifier/eNB identifier and the TA identifier/eNB identifier of a MeNB/MeNB's cell, or according to the TA identifier/eNB identifier where a user plane bearer of the UE is located, and notify the MeNB, so that the MeNB may, according to corresponding notification, establish or remain a UE bearer on the SeNB's cell, or transfer a UE bearer in or out of the SeNB's cell. By adopting above method, the continuity of user plane data may be maintained when a bearer is established on or moved to a small cell.

Abstract translation: 本公开的实施例提供了一种用于维持异构通信系统中的服务连续性的方法，包括：当在用于UE的SeNB / SeNB小区上建立承载或者由于承载传输而更新UE跟踪区域时，MeNB发送 MME是UE所在的SeNB / SeNB小区的服务标识符或UE的用户平面承载所在的eNB /小区的服务标识符; 根据接收的服务标识符，MME确定UE承载所在的TA标识/ eNB标识符，其中包括UE所在的SeNB小区的TA标识/ eNB标识符。 一方面，MME可以根据UE的TA确定UE是否移出本地家庭网络，以及是否需要释放SIPTO @ LN承载。 另一方面，MME可以根据TA标识符/ eNB标识符和MeNB / MeNB小区的TA标识符/ eNB标识符，或者根据TA标识符/ eNB标识符来选择SGW，其中UE的用户平面承载 并且通知MeNB，使得MeNB可以根据相应的通知在SeNB的小区上建立或保持UE承载，或者将UE承载传入或移出SeNB的小区。 通过采用上述方法，当承载建立或移动到小小区时，可以维持用户平面数据的连续性。

公开(公告)号：US12302433B2

公开(公告)日：2025-05-13

申请号：US18508892

申请日：2023-11-14

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W76/18 ,  H04W76/11 ,  H04W76/19 ,  H04W76/27 ,  H04W80/02 ,  H04W88/08 ,  H04W92/12

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 embodiments of the present invention provide methods and devices for network access. The method includes receiving a first request message forwarded by a distributed unit in a base station and indication information of the distributed unit with respect to the first request message, the first request message requesting to connect a user equipment to a network; determining a processing to be performed on the first request message based on the indication Information; and transmitting an indication of the determined processing to the distributed unit.

公开(公告)号：US11871462B2

公开(公告)日：2024-01-09

申请号：US18174257

申请日：2023-02-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W28/08 ,  H04W28/12 ,  H04W76/11 ,  H04W36/00 ,  H04W36/08 ,  H04W36/18 ,  H04W36/38 ,  H04W76/15

CPC classification number: H04W76/11 ,  H04W36/0058 ,  H04W36/0061 ,  H04W36/0069 ,  H04W36/0094 ,  H04W36/08 ,  H04W36/18 ,  H04W36/38 ,  H04W76/15

Abstract: An embodiment of the present disclosure may provide an inter-MeNB handover method in a small cell system, including: making, by a source MeNB and/or target MeNB, a determination as to whether to maintain a SeNB when handover is performed; and triggering different handover processes according to a result of the determination as to whether to maintain the SeNB. Another embodiment of the present disclosure may further provide an inter-MeNB handover device in a small cell system. With the inter-MeNB handover method and device in a small cell system provided by the present disclosure, unnecessary deletion and re-establishment of the bearers at the SeNB for the UE may be reduced. False bearer deletion may be avoided and data forwarding may be reduced. Furthermore, the SeNB may be maintained according to network deployment and SGW re-selection may be supported. Therefore, system capacity and transmission speed of the data may be improved.

公开(公告)号：US11855917B2

公开(公告)日：2023-12-26

申请号：US17561424

申请日：2021-12-23

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04L5/00 ,  H04W76/22 ,  H04W72/29

CPC classification number: H04L5/0032 ,  H04W72/29 ,  H04W76/22

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.

公开(公告)号：US11778587B2

公开(公告)日：2023-10-03

申请号：US17472234

申请日：2021-09-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xiaowan Ke ,  Hong Wang ,  Lixiang Xu

IPC: H04W68/02 ,  H04W8/02 ,  H04W76/10 ,  H04W68/00 ,  H04W76/25 ,  H04W76/28 ,  H04W76/19

CPC classification number: H04W8/02 ,  H04W68/00 ,  H04W76/10 ,  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：US11683736B2

公开(公告)日：2023-06-20

申请号：US17322675

申请日：2021-05-17

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W36/18 ,  H04W76/20 ,  H04W36/02 ,  H04W76/14 ,  H04W76/27 ,  H04W8/22 ,  H04W24/08 ,  H04W52/02 ,  H04W80/02 ,  H04W74/08 ,  H04W80/08

CPC classification number: H04W36/18 ,  H04W8/22 ,  H04W24/08 ,  H04W36/02 ,  H04W52/0206 ,  H04W76/14 ,  H04W76/20 ,  H04W76/27 ,  H04W74/0833 ,  H04W80/02 ,  H04W80/08 ,  Y02D30/70

Abstract: The present application discloses a method and eNB equipment for supporting seamless handover. The method comprises the following steps of: receiving, by a target eNB, random access information or an RRC connection reconfiguration completion message from a UE; transmitting, by the target eNB, a data transmission stopping indication message to a source eNB; and, stopping, by the source eNB, transmitting downlink data to the UE, and/or stopping, by the source eNB, receiving uplink data from the UE. The present invention further provides several other methods and eNB equipments for supporting seamless handover. By the methods for supporting seamless handover provided by the present invention, the delay of data transmission and the unnecessary data transmission or unnecessary data monitoring of a source eNB can be avoided, the waste of resources and the power consumption can be reduced, and the missing and duplication transmission of data can be avoided.

公开(公告)号：US11638144B2

公开(公告)日：2023-04-25

申请号：US17240173

申请日：2021-04-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Xiaowan Ke

IPC: H04W8/26 ,  H04W76/20 ,  H04W76/12 ,  H04W74/00 ,  H04W74/08 ,  H04W76/22 ,  H04W76/11 ,  H04W76/27 ,  H04W24/10 ,  H04W80/02 ,  H04W80/08

Abstract: Methods and apparatuses are provided through which a first node transmits, to a second node, a first message include a radio resource control (RRC) message associated with a terminal and an identifier allocated to the terminal to identify the terminal over an interface. The first node receives, from the second node, a second message including an identifier allocated to the terminal, an identifier of a data radio bearer, and uplink tunnel information. The first node transmits, to the second node, a third message including downlink tunnel information. The first node includes a radio link control (RLC) layer, a medium access control (MAC) layer, and a physical (PHY) layer. The second node includes an RRC layer and a packet data convergence protocol (PDCP) layer.

公开(公告)号：US11589262B2

公开(公告)日：2023-02-21

申请号：US16497216

申请日：2018-03-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Xiaowan Ke

IPC: H04W28/08 ,  H04W28/24 ,  H04W76/15 ,  H04W92/20 ,  H04W28/02

Abstract: A pre-5th-Generation (5G) or 5G communication system is provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as long term evolution (LTE). The method for operating a primary base station in a wireless communication system is provided. The method includes transmitting, to a secondary base station, an addition request message. The addition request message carries information of a secondary cell group (SCG) split bearer. The method further includes receiving, from the secondary base station, a response message of the addition request message.

公开(公告)号：US11463846B2

公开(公告)日：2022-10-04

申请号：US17106923

申请日：2020-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Xiaowan Ke

IPC: H04W4/06 ,  H04W76/40 ,  H04W4/40 ,  H04W76/11 ,  H04W4/021 ,  H04L45/00 ,  H04W40/02 ,  H04W40/20

Abstract: A communication method and system are provided for converging a 5G communication system with technology for IoT. The 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 performed by a V2X includes receiving, from a terminal, a V2X message including location information on the terminal; determining a first MBMS broadcast area for a V2X service based on the location information on the terminal; transmitting, to a BMSC, a first request message for the V2X service including information on the first MBMS broadcast area and a first TMGI for the V2X service, wherein the information on the first MBMS broadcast area includes at least one MBMS SAI mapped to the location information on the terminal; and transmitting, to the BMSC, a second request message for the V2X service, the second request message including information on a second MBMS broadcast area for broadcasting second MBMS data for the V2X service and the first TMGI. The first MBMS data is broadcast within the first MBMS broadcast area, and the first TMGI is used for the second MBMS data, in case that the first MBMS broadcast area does not overlap the second MBMS broadcast area.