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公开(公告)号：US11197337B2
公开(公告)日：2021-12-07
申请号：US16244709
申请日：2019-01-10
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kwangjin Choi , Dongsook Kim , Hanseok Kim , Hwajin Cha
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). An apparatus and an operation method of a base station in a wireless communication system are provided. The method may include performing data communication with a terminal that is in a first sub-state of a radio connection state, and controlling to change the state of the terminal from the first sub-state to a second sub-state of the radio connection state on the basis of whether data related to the terminal is generated during a transfer duration. Here, the first sub-state is a state in which resources for terminal context information related to the data communication are allocated in a first layer and a second layer, and the second sub-state is a state in which the resource is allocated in the first layer and is released in the second layer.
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公开(公告)号：US20170094577A1
公开(公告)日：2017-03-30
申请号：US15275279
申请日：2016-09-23
Applicant: Samsung Electronics Co., Ltd
Inventor： Sunghoon Kim , Sung Hwan Won , Hwajin Cha , Songyean Cho
Abstract: The present disclosure relates to a communication method and system for converging a 5 th-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.A method for a base station to perform communication in a wireless communication system includes transmitting an interface setup request message related to tracking area information to at least one mobility management entity (MME) in a first MME pool. The method includes identifying whether an interface setup response message related to the tracking area information is received from the at least one MME in the first MME pool, and storing mapping information between the tracking area information and the first MME pool if the interface setup response message is received.
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3.发明授权公开(公告)号：US10484963B2
公开(公告)日：2019-11-19
申请号：US15772004
申请日：2016-10-28
Applicant: Samsung Electronics Co., Ltd
Inventor： Hwajin Cha , Sung Hwan Won , Jinuk Lee , Songyean Cho
IPC: H04W68/02 , H04W72/12 , H04L12/835 , H04L12/861 , H04W28/02
Abstract: The present invention relates to a method and an apparatus for transmitting and receiving a paging message in a mobile communication system and, more particularly, to a method and an apparatus for determining a priority between paging messages at a wireless access point and paging a terminal. A method for paging a wireless access point in a mobile communication system according to an embodiment of the present invention comprises the steps of: receiving a plurality of paging messages from a core network; determining a priority between the plurality of paging messages; and transmitting the paging message to a terminal on the basis of the determined priority, wherein information on a number of paging attempts included in the paging messages is used for determining the priorities. The present disclosure relates to a 5G or pre-5G communication system that will be provided to support higher data rates than a post-4G communication system such as LTE.
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4.发明申请EFFICIENT SESSION MANAGEMENT METHOD AND APPARATUS GUARANTEEING TERMINAL MOBILITY 有权高效的会话管理方法和设备保证终端的移动性公开(公告)号：US20150215822A1
公开(公告)日：2015-07-30
申请号：US14609238
申请日：2015-01-29
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sung Hwan Won , Hwajin Cha , Songyean Cho
IPC: H04W36/00
CPC classification number: H04W36/0011 , H04L12/28 , H04W36/00 , H04W36/16 , H04W36/30
Abstract: A session management method and apparatus for managing mobility and session procedures integrally to improve manage the session of the terminal efficiently in the handover procedure. The session management method of a control entity includes transmitting a bearer management message for one of establishing, modifying, and releasing a bearer to a source base station, transmitting, when a handover of a terminal occurs before the bearer management is completed, a handover request including at least one of a first list including the bearers being managed by the source base station and a second list including the bearers being managed by the control entity to a target base station, and receiving a handover response from the target base station, wherein the handover response includes a bearer list generated based on one of the first and second list.
Abstract translation: 一种用于整体地管理移动性和会话过程的会话管理方法和装置，以便在切换过程中有效地管理终端的会话。 控制实体的会话管理方法包括向源基站发送建立，修改和释放承载之一的承载管理消息，当在承载管理完成之前发生终端切换时，发送切换请求 包括由源基站管理的承载的第一列表和包括由控制实体向目标基站管理的承载的第二列表中的至少一个，以及从目标基站接收切换响应，其中， 切换响应包括基于第一列表和第二列表之一生成的承载列表。
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公开(公告)号：US11432212B2
公开(公告)日：2022-08-30
申请号：US16944792
申请日：2020-07-31
Applicant: Samsung Electronics Co., Ltd.
Inventor： Chulhee Jang , Soenghun Kim , Eunyong Kim , Hwajin Cha
IPC: H04W36/02 , H04L1/16 , H04W36/00 , H04W36/08 , H04W36/38 , H04W74/08 , H04W88/02 , H04W88/08 , H04W80/08
Abstract: To solve the problem wherein a terminal cannot perform data communication from a network from the time point of a terminal receiving a handover command (HO command) message from a base station controlling a source cell to the time point of a terminal receiving a handover complete (HO complete) message from a base station controlling a target cell, after the terminal transmits the handover command message to the base station controlling the source cell, the base station controlling the source cell transmits to the base station controlling the target cell whether or not the terminal supports a function of reducing the interruption time of data transfer, the terminal continues to perform data transmission/reception with the base station controlling the source cell, and after the terminal completes a random access procedure with the base station controlling the target cell, the base station controlling the source cell transmits an additional sequence number status transfer message to the base station controlling the target cell.
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Patent Agency Ranking
公开(公告)号：US11026134B2
公开(公告)日：2021-06-01
申请号：US16082510
申请日：2017-03-08
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hwajin Cha , Sung Hwan Won , Sunghoon Kim
Abstract: The present invention relates to a method and an apparatus for supporting a handover and, more particularly, to a method and an apparatus for changing a mobile management entity while maintaining a connection state of a connection mode terminal. In order to achieve the above-mentioned objective, a method for supporting a handover of a serving mobile management entity (MME) according to one embodiment of the present invention comprises the steps of: receiving a tracking area update (TAU) request message from a terminal: determining whether the serving MME of the terminal needs to be changed, on the basis of the TAU request message; and transmitting, in the case where it is determined that the serving MME of the terminal needs to be changed, an MME change request message to an eNB.
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公开(公告)号：US10764799B2
公开(公告)日：2020-09-01
申请号：US16072300
申请日：2017-01-17
Applicant: Samsung Electronics Co., Ltd.
Inventor： Chulhee Jang , Soenghun Kim , Eunyong Kim , Hwajin Cha
IPC: H04W36/02 , H04W88/02 , H04W74/08 , H04W36/08 , H04W36/00 , H04L1/16 , H04W36/38 , H04W80/08 , H04W88/08
Abstract: To solve the problem wherein a terminal cannot perform data communication from a network from the time point of a terminal receiving a handover command (HO command) message from a base station controlling a source cell to the time point of a terminal receiving a handover complete (HO complete) message from a base station controlling a target cell, after the terminal transmits the handover command message to the base station controlling the source cell, the base station controlling the source cell transmits to the base station controlling the target cell whether or not the terminal supports a function of reducing the interruption time of data transfer, the terminal continues to perform data transmission/reception with the base station controlling the source cell, and after the terminal completes a random access procedure with the base station controlling the target cell, the base station controlling the source cell transmits an additional sequence number status transfer message to the base station controlling the target cell.
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公开(公告)号：US10383169B2
公开(公告)日：2019-08-13
申请号：US15118603
申请日：2015-02-16
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hwajin Cha , Donmyoung Lee , Jungkap Lee , Hanseok Kim
Abstract: A terminal connection management method of the present invention comprises the steps of setting a signal timer corresponding to a signal bearer of a terminal and a data timer corresponding to a data bearer, confirming whether the signal timer and the data timer have expired, and disconnecting from the terminal if both of the signal timer and the data timer have expired.
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公开(公告)号：US20190215890A1
公开(公告)日：2019-07-11
申请号：US16244709
申请日：2019-01-10
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kwangjin Choi , Dongsook Kim , Hanseok Kim , Hwajin Cha
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). An apparatus and an operation method of a base station in a wireless communication system are provided. The method may include performing data communication with a terminal that is in a first sub-state of a radio connection state, and controlling to change the state of the terminal from the first sub-state to a second sub-state of the radio connection state on the basis of whether data related to the terminal is generated during a transfer duration. Here, the first sub-state is a state in which resources for terminal context information related to the data communication are allocated in a first layer and a second layer, and the second sub-state is a state in which the resource is allocated in the first layer and is released in the second layer.
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公开(公告)号：US09973976B2
公开(公告)日：2018-05-15
申请号：US14609238
申请日：2015-01-29
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sung Hwan Won , Hwajin Cha , Songyean Cho
CPC classification number: H04W36/0011 , H04L12/28 , H04W36/00 , H04W36/16 , H04W36/30
Abstract: A session management method and apparatus for managing mobility and session procedures integrally to improve manage the session of the terminal efficiently in the handover procedure. The session management method of a control entity includes transmitting a bearer management message for one of establishing, modifying, and releasing a bearer to a source base station, transmitting, when a handover of a terminal occurs before the bearer management is completed, a handover request including at least one of a first list including the bearers being managed by the source base station and a second list including the bearers being managed by the control entity to a target base station, and receiving a handover response from the target base station, wherein the handover response includes a bearer list generated based on one of the first and second list.
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