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：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：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.

公开(公告)号：US10447700B2

公开(公告)日：2019-10-15

申请号：US15113984

申请日：2015-01-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04L29/06 ,  H04W16/24 ,  H04W8/06 ,  H04W8/18 ,  H04W36/04 ,  H04W36/08 ,  H04W36/00 ,  H04W84/04 ,  H04W88/08 ,  H04W64/00

Abstract: A method for controlling, charging and positioning a UE is disclosed, which includes: a master base station sending closed subscriber group (CSG) member status of the UE in a secondary cell to a secondary base station; the master base station sending a CSG identity of the secondary cell and a PLMN identity selected for the UE that serves the UE in a cell of the secondary base station to a mobility management entity (MME); the MME validating CSG member status of the UE in the secondary cell; and the MME sending the validated CSG member status to the master base station with the present application, the UE is able to properly access to the secondary cell, and access control and member validation, charging, and positioning may be performed for the UE reasonably, which improves the user experience.

公开(公告)号：US10397858B2

公开(公告)日：2019-08-27

申请号：US15544846

申请日：2016-01-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xiaowan Ke ,  Lixiang Xu ,  Hong Wang

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

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：US10382183B2

公开(公告)日：2019-08-13

申请号：US16193821

申请日：2018-11-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yu Qiu ,  Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W16/32 ,  H04L5/00 ,  H04W92/20

Abstract: The present invention relates to the technical field of radio communications, and particularly to a method and apparatus for processing activation/deactivation of inter-eNodeB carrier aggregation. Embodiments of the present invention provide a method for processing activation/deactivation of inter-eNodeB carrier aggregation, comprising the steps of: receiving, by UE, an MAC CE for activation/deactivation of an SCell sent by a master eNodeB or a secondary eNodeB; determining, by the UE, the corresponding SCell; and performing, by the UE, activation/deactivation to the corresponding SCell according to the indication information in the MAC CE for activation/deactivation.

公开(公告)号：US10154535B2

公开(公告)日：2018-12-11

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 ,  H04W76/25 ,  H04W76/18 ,  H04W36/32 ,  H04W36/24

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：US20180213506A1

公开(公告)日：2018-07-26

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 ,  H04W28/02 ,  H04L12/18 ,  H04W4/06 ,  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.

公开(公告)号：US20180014237A1

公开(公告)日：2018-01-11

申请号：US15543954

申请日：2016-01-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W36/26 ,  H04W74/00 ,  H04W76/04 ,  H04W36/00 ,  H04W36/30

CPC classification number: H04W36/26 ,  H04W36/0055 ,  H04W36/0069 ,  H04W36/08 ,  H04W36/30 ,  H04W74/004 ,  H04W76/10 ,  H04W76/15 ,  H04W76/27

Abstract: The present application discloses handover methods and apparatuses. One specific embodiment of the handover method comprises receiving a handover request message from a source base station by a target base station; determining whether to add a secondary base station for setting up a dual-connectivity for a user equipment (UE) according to the handover request message; and performing a handover operation and a dual-connectivity setup operation in response to the determination of adding the secondary base station. The dual-connectivity can be set up for the UE during the handover in the embodiments.