公开(公告)号：US20210212136A1

公开(公告)日：2021-07-08

申请号：US17135229

申请日：2020-12-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hoyeon LEE ,  Sangsoo JEONG

IPC: H04W76/12 ,  H04W48/16 ,  H04W4/50

Abstract: A method performed by an access and mobility management function (AMF) in a wireless communication is provided. The method includes transmitting, to a policy control function (PCF), a policy create request message including first allowed network slice selection assistance information (NSSAI), receiving, from the PCF, a policy create response message including first session management function (SMF) selection management information, in a case that an establishment of a first protocol data unit (PDU) session is requested from a terminal, establishing the first PDU session based on the first SMF selection management information, in a case that the first NSSAI is changed, transmitting, to the PCF, a policy update request message including second allowed NSSAI based on the policy control request trigger, and receiving, from the PCF, a policy update response message including second SMF selection management information.

公开(公告)号：US20210212010A1

公开(公告)日：2021-07-08

申请号：US17247995

申请日：2021-01-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hoyeon LEE ,  Sangsoo JEONG

IPC: H04W60/00 ,  H04W8/02 ,  H04W48/16

Abstract: A method of a network function (NF) entity performing communication in a wireless communication system includes: in case that a first registration request of a user equipment (UE) for a slice is received at an access and mobility function (AMF) entity through a first network, receiving a first slice availability request message for the slice from the AMF entity; determining whether the slice is available for the UE, based on a network slice policy; and transmitting, to the AMF entity, a response message including information regarding slice availability of the UE according to the first registration request, wherein in case that a second registration request of the UE for the slice is received at the AMF entity through a second network, slice availability of the UE according to the second registration request is determined based on at least one of the network slice policy or the information regarding the slice availability of the UE according to the first registration request.

公开(公告)号：US20210211970A1

公开(公告)日：2021-07-08

申请号：US17140590

申请日：2021-01-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hoyeon LEE ,  Sangsoo JEONG

IPC: H04W48/06 ,  H04L12/813 ,  H04W28/02

Abstract: The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data rate after a 4th generation (4G) communication system such as long term evolution (LTE). According to various embodiments, a method for operating a network node in a wireless communication system is provided. The method comprises obtaining slice policy information including a maximum data rate, monitoring a data rate of protocol data unit (PDU) sessions associated with the slice, determining whether a sum of data rates of PDU sessions associated with the slice exceeds the maximum data rate, transmitting, to a second network node, a policy enforcement request message for controlling the sum of data rates of the PDU sessions associated with the slice.

公开(公告)号：US20210092791A1

公开(公告)日：2021-03-25

申请号：US17113423

申请日：2020-12-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sangsoo JEONG ,  Songyean CHO ,  Beomsik BAE

IPC: H04W76/22 ,  H04W28/02 ,  H04W8/04 ,  H04W48/20

Abstract: Disclosed is a method of transmitting/receiving a signal in a Mobile Management Entity (MME) of a mobile communication system, the method comprising: transmitting a subscriber information request message including information of a UE, to a Home Subscriber Server (HSS); receiving, from the HSS, a response message which corresponds to the request message and includes an indicator indicating whether it is possible to perform traffic offloading using a Wireless Local Area Network (WLAN) with regard to an Access Point Name (APN) connection or a Packet Data Network (PDN) connection of the UE; determining whether it is possible to perform the traffic offloading using the WLAN, on the basis of at least one of information included in the received response message and information configured in the MME; and; and transmitting, to the UE, a message including information on whether it is possible to perform the traffic offloading using the WLAN. A communication method according to an embodiment of the present specification can generate one or more PDN connections with regard to one APN when the UE accesses a PDN through the WLAN. Further, the communication method according to the present invention can effectively be subjected to a traffic offloading control by the eNB even when the UE is roaming.

公开(公告)号：US20200280874A1

公开(公告)日：2020-09-03

申请号：US15929724

申请日：2020-05-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sangsoo JEONG ,  Songyean CHO

IPC: H04W28/02 ,  H04L29/12

Abstract: The present disclosure relates to a method and a device for controlling congestion in a mobile communication system. A method for controlling congestion of a network node according to the present disclosure comprises the steps of: receiving congestion-related information from at least one base station; transmitting a user equipment information request message for making a request for information on a piece of user equipment corresponding to the base station to a mobility management entity; receiving a user equipment information response message including the information on the user equipment corresponding to the base station from the mobility management entity; and transmitting the information on the piece of user equipment corresponding to the base station to another core network node.

公开(公告)号：US20190141594A1

公开(公告)日：2019-05-09

申请号：US16237190

申请日：2018-12-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sangsoo JEONG ,  Sung Hwan WON ,  Hyojin LEE ,  Seunghoon CHOI ,  Jinyoung OH ,  Hyoungju JI ,  Younsun KIM ,  Cheolkyu SHIN ,  Donghan KIM ,  Hoondong NOH

IPC: H04W36/14 ,  H04W76/12 ,  H04W76/27 ,  H04W28/08

Abstract: Various communication techniques and related systems for a fusion between a 5th generation (5G) communication system and Internet of Things (IoT) technology are provided. A user equipment (UE) is required to select a dedicated core network so as to receive a suitable service. In a method for transmitting and receiving a signal, an enhanced Node B (eNB) of a mobile communication system transmits a first request message to a first mobile management entity (MME), receives a reroute command message based on the first request message from the first MME, and transmits a second message to a second MME based on the reroute command message. Herein, the reroute command message contains the first request message, at least one MME identifier, and a UE identifier.

公开(公告)号：US20190059028A1

公开(公告)日：2019-02-21

申请号：US16167356

申请日：2018-10-22

Applicant: Samsung Electronics Co., Ltd

Inventor： Sung Hwan WON ,  Songyean CHO ,  Sangsoo JEONG

IPC: H04W36/00

CPC classification number: H04W36/0066 ,  H04W24/02 ,  H04W36/00 ,  H04W36/0069

Abstract: A resource management method and apparatus allows or restricts use of some or all of the resources of entities of a wireless communication system. A radio resource management method of a radio access point includes receiving a measurement report from a terminal, selecting another radio access point for serving the terminal in cooperation with the serving radio access point based on the measurement report and a Handover Restriction List (HRL), and transmitting a request for serving the terminal to the selected another radio access point.

公开(公告)号：US20180352589A1

公开(公告)日：2018-12-06

申请号：US16055672

申请日：2018-08-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sangsoo JEONG ,  Songyean CHO ,  Jinuk LEE ,  Heejeong LEE

IPC: H04W76/10 ,  H04W80/10 ,  H04W40/02 ,  H04W8/12 ,  H04W8/06 ,  H04W8/02 ,  H04L29/06 ,  H04W76/12 ,  H04W76/38 ,  H04L29/08

Abstract: A method and apparatus is provided that improves the quality of voice calls in a mobile communication network. The method of performing transmission/reception of signals in an evolved Node B (eNB) of a mobile communication system includes: receiving a first message including service request information from user equipment (UE); transmitting a second message including the service request information to an Mobility Management Entity (MME); receiving a third message including context information for the UE from the MME; and determining an inactivity timer value for the UE based on the context information. The method and apparatus can maintain, when a voice call is created, connection with calling UE from when the called UE answers the call until the call is set up, thereby preventing part of a caller's voice data from being lost.

公开(公告)号：US20180160472A1

公开(公告)日：2018-06-07

申请号：US15869377

申请日：2018-01-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngkyo BAEK ,  Sangsoo JEONG ,  Songyean CHO

IPC: H04W76/50 ,  H04W76/00 ,  H04W68/02 ,  H04W36/18 ,  H04W76/30 ,  H04W8/02 ,  H04W8/18 ,  H04W4/90 ,  H04W4/02

Abstract: A method and a device for maintaining an emergency call service through a packet network in a mobile communication network are provided. UE using VoLTE receives identification information indicating whether an IMS Voice over PS (VoPS) is supported from a network to determine whether the IMS VoPS of the network is supported, and processes paging for a CS voice call according to the determination result if the emergency call service continues through the packet network.

公开(公告)号：US20180124666A1

公开(公告)日：2018-05-03

申请号：US15852985

申请日：2017-12-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Songyean CHO ,  Chaegwon LIM ,  Sangsoo JEONG ,  Sungho CHOI

IPC: H04W36/14 ,  H04W48/02 ,  H04W8/08

CPC classification number: H04W36/14 ,  H04W8/08 ,  H04W48/02

Abstract: A method and apparatus for controlling inter-PLMN handover based on CSG lists of equivalent PLMNs is provided. A method for receiving subscriber information of a terminal at a Mobility Management Entity (MME) includes transmitting an update location request message for the terminal to a Home Subscriber Server (HSS), and receiving an update location acknowledgement message with the subscriber information of the terminal from the HSS, wherein the update location request message comprises a list of equivalent Public Land Mobile Networks (PLMNs) among which the MME supports inter-PLMN handover of the terminal. The method and apparatus for controlling inter-plan handover to a CSG cell according to the present invention is characterized in that a control apparatus of a core network acquires the allowed CSG lists for determining a User Equipments (UEs) capability of access to a CSG cell and determines whether to permit inter-PLMN handover based on the allowed CSG lists.