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公开(公告)号：US11818679B2
公开(公告)日：2023-11-14
申请号：US17122937
申请日：2020-12-15
Applicant: Samsung Electronics Co., Ltd.
Inventor： Lixiang Xu , Hong Wang , Xiaowan Ke
CPC classification number: H04W60/04 , H04W36/14 , H04W48/16 , H04W48/18 , H04W80/10 , H04W88/10 , H04W48/02
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.
There is provided a method and apparatus for data transport control between wireless network systems, the method comprises: determining, by a first node, whether a predetermined condition is satisfied; and transmitting, by the first node, at least one of data transport command information and user equipment access information when the predetermined condition is satisfied.-
公开(公告)号：US11722933B2
公开(公告)日：2023-08-08
申请号：US17503863
申请日：2021-10-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Lixiang Xu , Hong Wang , Xiaowan Ke
CPC classification number: H04W36/0016 , H04W36/0033 , H04W36/08
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). The present invention provides a method for supporting handover, comprising the steps of: informing, by a source base station, a core network whether a direct data forwarding path is available; deciding, by the core network, whether to use direct data forwarding or indirect data forwarding; informing, by the core network, a target base station of information about the direct data forwarding or indirect data forwarding; allocating, by the target base station, data forwarding tunnel information, the target base station allocating the data forwarding tunnel information according to the received information about the direct data forwarding or indirect data forwarding; transmitting, by the target base station, the allocated data forwarding tunnel information to the core network; and informing, by the core network, the source base station of the data forwarding tunnel information. With the present invention, different data forwarding methods are supported to prevent data loss and ensure service continuity.
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公开(公告)号：US11696169B2
公开(公告)日：2023-07-04
申请号：US17526542
申请日：2021-11-15
Applicant: Samsung Electronics Co., Ltd.
Inventor： Xiaowan Ke , Lixiang Xu , Hong Wang
CPC classification number: H04W28/0268 , H04W28/0263 , H04W76/12 , H04W76/15 , H04W76/30
Abstract: Methods and apparatuses are provided in a wireless communication system. A first message is transmitted, from a master base station, to a secondary base station, for requesting the secondary base station to allocate resources for a dual connectivity (DC) operation. A second message is received from the secondary base station, after transmitting the first message. A third message is transmitted to the secondary base station, after receiving the second message. The first message includes a quality of service (QoS) flow identifier (ID) and available data radio bearer (DRB) IDs. The second message includes the QoS flow ID and a DRB ID corresponding to the QoS flow ID. The third message includes tunnel information for the DRB ID including an Internet protocol (IP) address and a tunnel endpoint identifier (TEID).
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公开(公告)号：US11617115B2
公开(公告)日：2023-03-28
申请号：US17449427
申请日：2021-09-29
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.
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公开(公告)号：US11558916B2
公开(公告)日：2023-01-17
申请号：US17093091
申请日：2020-11-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hong Wang , Xiaowan Ke , Lixiang Xu , Qi Li
Abstract: A method and an apparatus of establishing dual-connectivity to transmit data are disclosed. A PCell of the UE carries out a mapping function and realizes a PDCP layer, a RLC layer, a MAC layer and a physical layer, and a SCell of the UE carries out quality packet data to data radio bearer mapping and realizes a PDCP layer, a MAC layer and a physical layer, in which a core network transmits data of the UE to the PCell, the PCell maps a QoS Flow of the data of the UE which is quality packet data to a data radio bearer on a mapping layer, performs path split, transmits data of respective paths to the UE through the PCell and SCell of the UE, and the UE regroups the data of the respective paths on the PDCP layer, and transmits the regrouped data to an application layer.
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Patent Agency Ranking
公开(公告)号：US11490358B2
公开(公告)日：2022-11-01
申请号：US17113542
申请日：2020-12-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Lixiang Xu , Xiaowan Ke
Abstract: An embodiment of the present disclosure provides a method for supporting paging of a low complexity UE, including: determining, by a target base station during handover of a UE, whether a source base station during the handover supports low complexity UE, and transmitting paging capability information of the UE to a Mobility Management Entity MME in response to determining that the source base station does not support low complexity UE, wherein the paging capability information of the UE is used by the MME for paging the UE. The method provided by embodiments of the present disclosure is able to enhance paging with respect to the low complexity UE.
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公开(公告)号：US11457391B2
公开(公告)日：2022-09-27
申请号：US17066371
申请日：2020-10-08
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.
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公开(公告)号：US11356918B2
公开(公告)日：2022-06-07
申请号：US16323901
申请日：2017-08-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Lixiang Xu , Hong Wang , Qi Li , Xiaowan Ke
IPC: H04W36/32 , H04W48/18 , H04W24/10 , H04W68/00 , H04W68/04 , H04W8/08 , H04W60/04 , H04W8/22 , H04W48/04 , H04W88/08
Abstract: A communication method and system for controlling and paging a user equipment (UE) are provided. The method includes receiving mobility level information of a UE, and performing at least one of handover control, measurement control, or paging for the UE according to mobility level information of the UE.
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公开(公告)号：US11190968B2
公开(公告)日：2021-11-30
申请号：US16623201
申请日：2018-06-15
Applicant: Samsung Electronics Co., Ltd.
Inventor： Xiaowan Ke , Lixiang Xu , Hong Wang
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 provides a method for connection set-up and corresponding master base station and secondary base station. The method includes: transmitting a secondary base station setup request message to a secondary base station, and receiving a secondary base station setup response message which comprises mapping information from a quality of service (QoS) flow to a data radio bearer (DRB). The present disclosure further provides a method of requesting a secondary cell group (SCG) configuration and corresponding master base station and secondary base station. The method includes: transmitting a secondary base station modification request message for requesting SCG configuration information, the secondary base station modification request message carrying indication information for indicating that a master base station needs to obtain SCG configuration information; and receiving a secondary base station modification response message transmitted by the secondary base station, the secondary base station modification response message carrying the SCG configuration information. The present disclosure further provides methods and devices for controlling a session operation and a corresponding computer readable medium.
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公开(公告)号：US11147111B2
公开(公告)日：2021-10-12
申请号：US16902621
申请日：2020-06-16
Applicant: Samsung Electronics Co., Ltd.
Inventor： Lixiang Xu , Xiaowan Ke , Hong Wang
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.
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