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.

公开(公告)号：US10993271B2

公开(公告)日：2021-04-27

申请号：US15749440

申请日：2016-08-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Xiaowan Ke

IPC: H04W48/10 ,  H04W76/10 ,  H04W76/20 ,  H04W48/20 ,  H04W36/00 ,  H04W92/20

Abstract: Embodiments of the present disclosure provide a UE access method, including: a UE receiving information of supported type(s) of respective cell of a base station broadcasted by the respective cell, wherein the information of the supported type(s) of the respective cell comprises UE type(s) supported by the respective cell; and the UE comparing the type of the UE and the UE type(s) supported by the respective cell, and selecting a cell supporting the type of the UE and transmit an RRC connection setup request message to the selected cell, wherein the RRC connection setup request comprises the type of the UE. The present disclosure further provides several other UE access methods and devices. According to the present disclosure, the method and device which can select different access network of different types for different types of users, the user requirement is met and the network utilization ratio is increased.

公开(公告)号：US10856112B2

公开(公告)日：2020-12-01

申请号：US16089854

申请日：2017-03-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Lixiang Xu ,  Xiaowan Ke

IPC: H04W4/06 ,  H04W76/40 ,  H04W4/40 ,  H04W76/11 ,  H04W4/021 ,  H04L12/721 ,  H04W40/02 ,  H04W40/20

Abstract: Disclosed are 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), which 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 disclosure relates to wireless communications technologies, and more particularly, a method and an apparatus for transmitting a vehicle to everything (V2X) message via an enhanced Multimedia Broadcast Multimedia Service (eMBMS) bearer.

公开(公告)号：US10805852B2

公开(公告)日：2020-10-13

申请号：US16090140

申请日：2017-03-31

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

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：US10791486B1

公开(公告)日：2020-09-29

申请号：US16882306

申请日：2020-05-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Huarui Liang

IPC: H04W36/00 ,  H04W76/19 ,  H04W84/04

Abstract: A method for supporting fast recovery of a User Equipment (UE) includes performing, by a serving base station, UE context synchronization for one or more other base stations in a related small cell cluster when a UE accesses the serving base station, performing, by a base station that the UE performs a radio resource control (RRC) connection re-establishment, the RRC connection re-establishment for the UE according to UE context saved in a synchronization process. The present also discloses another method and system for supporting UE fast recovery. By applying the technical solution disclosed by the present disclosure, when the UE moves in a small cell scenario, the UE can be recovered quickly in the case of a failure, so as to avoid the UE returns to an idle mode, avoid data loss, guarantee business continuity, and improve UE experience.

公开(公告)号：US10694432B1

公开(公告)日：2020-06-23

申请号：US16790065

申请日：2020-02-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W36/00 ,  H04W16/26 ,  H04W36/38 ,  H04W36/18 ,  H04W76/11 ,  H04W36/08 ,  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：US10681565B2

公开(公告)日：2020-06-09

申请号：US13724264

申请日：2012-12-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang

IPC: H04W76/19 ,  H04W24/00 ,  H04W24/04

Abstract: The present invention discloses a method for detecting a cause for a Radio Link Failure (RLF) or handover failure is provided. The method includes when a User Equipment (UE) enters a connection mode after encountering RLF or handover failure, sending a RLF report that the UE encounters RLF or handover failure to a base station; determining, by the base station, a cause for RLF or handover failure according to the RLF report, if it is determined that the cause for RLF or handover failure is a problem of Mobility Robustness Optimization (MRO) or a problem of coverage, when it is a problem of MRO, sending, by the base station, a MRO report to a base station at which a cell which triggers handover for the last time is located.

公开(公告)号：US10582428B2

公开(公告)日：2020-03-03

申请号：US14040526

申请日：2013-09-27

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang Xu ,  Hong Wang ,  Huarui Liang

IPC: H04W36/00 ,  H04W84/04

Abstract: Methods and apparatuses for verifying HeNB. A method reduces and/or avoids affecting the operator's network due to the attack from HeNB, and ensures the safety of the users who have accessed the network.

公开(公告)号：US10568022B2

公开(公告)日：2020-02-18

申请号：US16551584

申请日：2019-08-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xiaowan Ke ,  Lixiang Xu ,  Hong Wang

IPC: H04W48/10 ,  H04W60/04 ,  H04W76/30 ,  H04W60/06 ,  H04W48/18 ,  H04W48/12 ,  H04W76/10

Abstract: The present application discloses a method for enabling a user equipment to access a radio network, a network equipment and a user equipment. A specific embodiment of the method comprises: determining, by a network equipment, whether a predetermined condition is satisfied; and if yes, the method further comprises: transmitting, by the network equipment, information indicating whether a radio network to which the network equipment belongs is isolated, such that the user equipment performs related operations. In the embodiment, the network equipment informs UE of state information about whether the radio network to which network equipments belongs is isolated or not in different ways, so that the isolated network can provide users with reliable local bearer supporting service continuity, thereby meeting communication requirements for public safety and the like.

公开(公告)号：US10560921B2

公开(公告)日：2020-02-11

申请号：US15924731

申请日：2018-03-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong Wang ,  Xiaowan Ke ,  Lixiang Xu

IPC: H04W72/00 ,  H04L12/18 ,  H04W4/06 ,  H04W28/02 ,  H04W28/08

Abstract: Various examples provide a method for radio resources management. An MCE or a GCSE AS or a UE receives usage information of eMBMS radio resources, and adjusts radio resources in response to a determination that there is an overload state. The MCE may re-configure the eMBMS radio resources. Alternatively, the UE or the GCSE AS may establish a unicast channel for transporting a GCSE service which was transmitted on an overloaded eMBMS bearer, and release the eMBMS bearer. The technical mechanism can make effective use of radio interface resources and reduce data loss.