公开(公告)号：US20200314758A1

公开(公告)日：2020-10-01

申请号：US16324885

申请日：2017-08-11

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang XU ,  Hong WANG ,  Xiaowan KE

IPC: H04W52/02 ,  H04W4/70 ,  H04W76/27 ,  H04W8/08

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.

公开(公告)号：US20200162211A1

公开(公告)日：2020-05-21

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：US20200092761A1

公开(公告)日：2020-03-19

申请号：US16694964

申请日：2019-11-25

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang XU ,  Hong Wang ,  Huarui Liang

IPC: H04W36/00 ,  H04W76/19

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：US20200084682A1

公开(公告)日：2020-03-12

申请号：US16684549

申请日：2019-11-14

Applicant: Samsung Electronics Co., Ltd

Inventor： Weiwei WANG ,  Lixiang XU ,  Xiaowan KE ,  Hong WANG

IPC: H04W36/00 ,  H04W36/14 ,  H04W36/08 ,  H04W24/02 ,  H04W28/18 ,  H04W92/20 ,  H04W80/02 ,  H04W80/10 ,  H04L27/26 ,  H04L5/00

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：US20200076546A1

公开(公告)日：2020-03-05

申请号：US16676987

申请日：2019-11-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shichang ZHANG ,  Yingyang LI ,  Jingxing FU ,  Yi WANG ,  Chengjun SUN ,  Lixiang XU

IPC: H04L1/18

Abstract: An apparatus and method for feeding back hybrid automatic repeat request-acknowledgement (HARQ-ACK) information are provided. The apparatus and method include user equipment (UE) that first receives a downlink grant (DL-GRANT) which schedules downlink HARQ transmission in a time-frequency bundling window corresponding to an uplink subframe used for feeding back HARQ-ACK, obtains a DL downlink assignment index (DL DAI) in the DL-GRANT, and determines a mapping value of each DL DAI. Then, according to the mapping value of the corresponding DL DAI, the HARQ-ACK bit of each HARQ feedback unit is mapped to a corresponding bit of a feedback bit sequence. According to the method and apparatus provided by the present disclosure, useless HARQ-ACK bits may be effectively removed, and efficiency for feeding back HARQ-ACK may be increased. As such, a downlink peak rate of a UE is ensured.

公开(公告)号：US20200045053A1

公开(公告)日：2020-02-06

申请号：US16599816

申请日：2019-10-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang XU ,  Xiaowan KE ,  Hong WANG

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

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：US20190320476A1

公开(公告)日：2019-10-17

申请号：US16338291

申请日：2017-09-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hong WANG ,  Xiaowan KE ,  Lixiang XU ,  Qi LI

IPC: H04W76/15

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.

公开(公告)号：US20190246320A1

公开(公告)日：2019-08-08

申请号：US16383932

申请日：2019-04-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xiaowan KE ,  Lixiang XU ,  Hong WANG

IPC: H04W36/00 ,  H04W28/02

CPC classification number: H04W36/0066 ,  H04W28/0268 ,  H04W84/042 ,  H04W84/12

Abstract: A method for controlling a wireless local area network (WLAN) bearer is provided. The method includes a base station receives information including at least one of WLAN information of a WLAN node, WLAN aggregation response information, WLAN aggregation update response information, WLAN aggregation update information and a WLAN capability of UE. According to the received information, the base station instructs the UE to perform traffic steering between an E-UTRAN and the WLAN, or instructs the UE to perform control processing for the EUTRAN and WLAN aggregation. By using the present disclosure, efficiency of WLAN bearer control is improved.

公开(公告)号：US20190191340A1

公开(公告)日：2019-06-20

申请号：US16284679

申请日：2019-02-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang XU ,  Hong WANG ,  Huarui LIANG

IPC: H04W36/00

CPC classification number: H04W36/0016 ,  H04W24/02 ,  H04W36/0061 ,  H04W36/0066 ,  H04W36/14

Abstract: A method for supporting indication of a failure event to a source access system is provided. The method includes notifying, by the source access system, information of a source cell to a target access system, routing, by the target access system, a message to the base station or the base station controller of the source access through a core network by use of the information of the source cell received from the source access system when the target access system needs to transmit a message to the source access system. By use of the method provided by the present disclosure, a problem of mobility robustness optimization (MRO) among different radio access technology (RAT) may be notified to the source access system, so as to avoid impact for a terminal, reduce operator configuration.

公开(公告)号：US20190159079A1

公开(公告)日：2019-05-23

申请号：US16254447

申请日：2019-01-22

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang XU ,  Hong Wang ,  Huarui Liang

IPC: H04W36/00 ,  H04W76/19

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.