Samsung Electronics Co., Ltd.

Osong Medical Innovation Foundation, Korea University Research and Business Foundation

Snu Rdb Foundation

Young Kyo Baek

Sang Soo Jeong

Song Yean Cho

Han Na Lim

Beom Sik Bae

Sung Hwan Won

Kyung Joo Suh

Hoyeon Lee

Sunghoon Kim

Jungje Son

Sung Ho Choi

Chung Gu Kang

Alper Yegin

Seung Woo Seo

Young Hoon Park

Dong Hyun Je

Chan Seok Yang

Jun Man Lee

In a user equipment of a wireless communication system, a method for signal transmission and reception may include: sending a request for a Circuit Switched voice network (CS) service to a Gateway Mobile Switching Center (GMSC) to send and receive data to and from a second user equipment; and receiving a call reject response corresponding to the service request from the GMSC, wherein the call reject response is sent by an entity in a core network of the second user equipment. According to an embodiment, it is possible to provide a suitable service to a sender terminal making a CS service request to a receiver terminal having subscribed only to a PS service without increasing network load.

Method for controlling service in radio communication system

A method and a device for setting priority of data transmission are provided. A terminal, which is set to transmit low priority data to a network, transmits a connection request to the network in order to transmit normal-priority data, and receives and stores priority information on data transmission from the network.

Method and device for setting priority of data transmission

The present disclosure relates to a technology for providing a service of effectively transmitting and receiving data by simultaneously using a 3GPP system and a non-3GPP system in a network in which the 3GPP system and the non-3GPP system coexist. A communication method of a non-3GPP access network entity according to embodiments of the present disclosure includes receiving overload status information from a gateway; receiving a session management request message from a user equipment (UE); and transmitting a session management reject message comprising a back-off timer to the UE. According to the embodiment of the present disclosure, when a specific PDN (or APN) is overloaded, the overload state can be controlled.

Apparatus and method for controlling control overload in WLAN systems

The disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). a method for operating a terminal in a wireless communication system is provided. The method includes receiving information relating to a data session from a network node, determining a target node among nodes belonging to a second network based on the information relating to the data session, and performing a handover from a source node belonging to a first network to the target node.

Apparatus and method for handover in wireless communication system

The present invention pertains to a method and apparatus for setting a mobile communication terminal. A method for setting a mobile communication terminal according to one embodiment of the present invention may comprise the steps of: transmitting, by the mobile communication terminal, an information provision request message to an information provision entity; and receiving, by the mobile communication terminal, information for access to the mobile communication terminal, which is generated by the information provision entity, from the information provision entity. According to one embodiment of the present invention, a user can directly set a service provider during initial use of a terminal or efficiently change the service provider.

Method for setting terminal in mobile communication system

A method of transferring and receiving data by a mobility management entity (MME) in a mobile communication system according to an embodiment of the present invention includes receiving, from equipment, a message that includes the address of an XML configuration access protocol (XCAP) and is used to access an Internet packet data network (PDN); checking any one of subscription information on the equipment and a network carrier policy, on the basis of the received message; and delivering a create session request message to a gateway on the basis of the received message if the equipment is accessible to the PDN as the result of the check, wherein the create session request message includes an indicator that accesses the XCAP server. according to an embodiment, roaming equipment may transfer and receive an XCAP related message. Moreover, as the roaming equipment receives the XCAP related message, the present invention has an effect of being able to prevent undesired traffic due to another data packet from occurring.

Method and device for transferring and receiving message in roaming system

The present invention relates to a method and apparatus for updating a key for encrypting multicast data in a wireless communication system. The method of the present invention is characterized by comprising: an information receiving step of receiving information on a group entry time and a group exit time from users who have newly entered an arbitrary group including at least one subgroup; a grouping step of grouping the users using the information on the group entry time and the group exit time; and a key transmission step of either transmitting, to the newly-entered users, keys related to the group and the subgroups, or updating, for the remaining users of the subgroups, both the key related to the subgroup to which the user exiting the group belongs and the key of the group and then transmitting the updated keys to the users of the subgroups.

Method and apparatus for updating a group key in a wireless communication system

Growing community of inventors

Seoul, South Korea

Young Kyo Baek