Samsung Electronics Co., Ltd.

Snu Rdb Foundation

Kyung Joo Suh

Sang Soo Jeong

Beom Sik Bae

Han Na Lim

Song Yean Cho

Kyung Hun Jung

Sung Wook Choi

Ho Gun Lim

Sung Ho Choi

Chae Gwon Lim

Young Kyo Baek

Kyeong In Jeong

Rajavelsamy Rajadurai

Sung Hwan Won

Tae Sun Yeoum

Jung Je Son

Eun Hui Bae

Jae Chon Yu

Jung Hyeon Kim

Jung Shin Park

Seung Woo Seo

Young Hoon Park

Dong Hyun Je

Jin Won Seo

A method and apparatus for supporting Non-Access Stratum (NAS) communication between a User Equipment (UE) and a Mobility Management Entity (MME) efficiently by addressing the signaling problems occurring between the UE and the MME in a situation where it is necessary for a network node to identify the UE and acquire UE information, if there is any, from another network node to which the UE has been attached, are provided. The method for communication between the UE and network based on the NAS protocol messages and operations is implemented with the involvement a UE, an MME, and an old MME or an old Serving General Packet Radio Service (GPRS) Support Node (SGSN) to which the UE has been attached before so as to facilitate discovering a best node using the UE information acquired from the old MME or old SGSN during the communication between the UE and the network, resulting in a reduction of a communication delay between the UE and network and an improvement of communication efficiency.

Communication supporting method and apparatus using non-access stratum protocol in mobile telecommunication 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

The present invention relates to a public warning system (PWS) in a mobile Communication network, and the present invention relates to a method and an apparatus for resolving a security problem occurring in the PWS with a protocol and actions between other network entities, and managing same. A user equipment (UE), according to the present invention, saves a public key and a public key index pair of a cell broadcast center (CBC), verifies the CBC which has transmitted a digital signature when the digital signature is received from a subject that transmits a public warning, and resolves a security problem related to a public security system so as to receive a message by the public warning system. As a result, according to the present invention, when the public warning message is received in environments such as an evolved universal terrestrial radio access network (EUTRAN), a universal terrestrial radio access network (UTRAN), or a GSM/EDGE radio access network (GERAN), the subject that has sent the public warning message is verified by the user equipment, thereby enabling the user equipment to perform an action appropriate to the warning message in an emergency disaster situation.

Method and apparatus for efficient security management of disaster message in mobile communication system

A method and an apparatus for transmitting and receiving privacy information are disclosed. The method includes transmitting a connection (ATTACH) message including a terminal type indication, privacy type, privacy indication, and transmission period, receiving a connection complete (ATTACH ACCEPT) message; and transmitting location information. According to the embodiments of the present invention, the method and the apparatus for transmitting and receiving privacy information can provide an adequate protection for the privacy information in a terminal.

Method and apparatus for transreceiving privacy information

The present invention relates to a method and an apparatus for transmitting contents in a mobile communication network. According to one embodiment of the present invention, the method for receiving the contents of user equipment (UE) in a mobile communication system equipped with a local server which is connected to a base station (eNB) and copies partial contents of an external content server and maintains the copied contents, can include: a content determination step of determining whether the selected contents are the contents provided from the local server when a content selection input is received; a request transmission step of transmitting a content transmission request message to the base station (eNB) when the contents are the contents provided from the local server; and a content reception step of receiving the contents from the base station. According to one embodiment of the present invention, the present invention provides the method and the apparatus for efficiently receiving the contents which reduce resources used for receiving the contents and shorten a delay time.

Method and apparatus for receiving contents in mobile communication system

The present invention relates to a method and an apparatus for single sign-on in a mobile communication system. A method in which a browsing agent performs single sign-on in a mobile communication system according to the present invention comprises: a step of transmitting user-supplied identifier to a relay party (RP); a step of receiving, from said RP, a message indicating that a browser should be re-directed to said RP; a step of transmitting an identifier of an authentication agent to an open ID provider (OP)/network application function (NAF); and a step of transmitting, to the authentication agent, the identifier of the authentication agent or a message that triggers to make an inquiry into the identifier of the authentication agent. According to the present invention, a single sign-on procedure may be performed in a safer manner.

Method and apparatus for single sign-on in a mobile communication system

A terminal and a user authentication method of a terminal in a communication system are provided. The terminal and the method include transmitting information including a user identifier to a Relaying Party (RP), receiving a redirect request message including a OpenID authentication request from the RP, and verifying validity of the RP based on the redirect request message.

Method and apparatus for supporting single sign-on in a mobile communication system

The present invention relates to a method and a system for managing an emergency call between a terminal and a network by using a non-access stratum protocol in a mobile communication network. A method for providing an emergency call service by a terminal in accordance with one embodiment of the present invention comprises the steps of: enabling the terminal to transmit an access request message including an emergency call identifier to a mobility management entity; enabling the terminal to attempt to authenticate the mobility management entity after the step of transmitting the access request message; enabling the terminal to receive an access grant message including the emergency call identifier from the mobility management entity; and enabling the terminal which receives the access grant message, to provide an emergency call service through the mobility management entity. According to one embodiment of the present invention, the emergency call is enabled.

Method and system for supporting emergency call using non-access stratum protocol in mobile telecommunication 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

The present invention provides a method and system for secured remote provisioning of a universal integrated circuit card of a user equipment. A system includes a user equipment for initiating a request for remote provisioning of an universal integrated circuit card (UICC) in the user equipment, where the request for remote provisioning includes a machine identifier (MID) associated with the user equipment and a public land mobile network (PLMN) identifier (ID) associated with an network operator. The system also includes at least one shared key management server for dynamically generating security keys and an operator shared key using the security keys, the MID. Moreover, the system includes an operator network for generating a subscription key using the operator shared key and an international mobile subscriber identity (IMSI), and provisioning the IMSI in a secured manner to the UICC of the user equipment using the security keys.

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Seoul, South Korea

Kyung Joo Suh