Lg Electronics Inc.

Kyung-Ae Yoon

Jae-Seung Song

Hyun-Sook Kim

Mi-Seon Ra

Hede Patrice

Patrice Hede

Kang-Suk Huh

Se-Hee Lee

Song-Rae Cho

Patrice Hédé

Kyu-Sung Han

Jong Chul Park

Young June Park

Young-Hwan Park

Sung-Bum Choi

Young-Ae Kim

Jong-Chul Park

Jong-Sook Kim

Mi-Soon Ra

A multiple network connection method that includes: receiving, by a first device from a second device, capability information of the second device; transmitting, by the first device to the second device, a registration complete message indicating that the second device is registered to a network; and performing, by the first device, a service control for providing a service for the second device. A first connection path and a second connection path are established using the capability information. The first connection path is established between the network and the second device through the first device, and is used for conveying control information for the service. The second connection path is established between the network and the second device not through the first device, and is used for conveying user data for the service.

Multiple network connection method and communication device thereof

A method for transmitting information in a wireless communication system and a wireless communication terminal supporting the method, are discussed. In one embodiment, when an application server sends to a receiving terminal a specific message for checking radio environment information or a message including a radio environment capability, the receiving terminal having received the message may send a response message with its own radio environment information to the application server, such that the radio environment information related to the receiving terminal can be sent to the sending terminal after analyzed by the application server.

Wireless communication system for performing combined service between terminals having different communication environments

A method and a terminal are described for providing a circuit switched (CS) service, a session initiation protocol (SIP)-based service, or a CSI service which is a combination of the CS service and an Internet Protocol (IP) multimedia subsystem (IMS) service. The terminal may receive a terminal capability version of at least one target terminal, and compare the received terminal capability version with a previously stored terminal capability version of the at least one target terminal. The terminal may send a message for requesting for terminal capability information of the at least one target terminal, if the received terminal capability version of the at least one target terminal is different from the previously stored terminal capability version of the at least one target terminal based on the comparison result. Otherwise, a CS or IMS process is implemented.

Terminal, method and system for performing combination service using terminal capability version

A method for handling CS (Circuit Switching) calls in a VCC (Voice Call Continuity), a VCC application server and an apparatus thereof, wherein first, the VCC application identifies whether a called party number of CS domain calls routed thereto is in an international format, secondly, the VCC application may request to convert the format of the called party number into the international format (referred to as 'routable number') if the called party number is not in the international format, thirdly, a translation entity may convert the called party number into the routable number by adding an international prefix suitable for a current location of the originating terminal based on both the called party number and location information on the originating terminal, and then the calls may continue in an IMS domain or a CS domain by the routable number.

Method for handling CS calls in voice call continuity, VCC application server and translation entity

A method, server and terminal for providing a Voice Call Continuity (VCC) service, are discussed. According to an embodiment, the terminal includes a storage unit to store operator policy information and user preference information, the user preference information including domain selection information specifying a user-preferred domain to be used when originating the outgoing call from the terminal, the operator policy information including domain selection information specifying a network-preferred domain to be used when originating the outgoing call from the terminal; and a controller to perform a domain selection for the outgoing call based on the user preference information or the operator policy information.

Method for placing call in voice call continuity and terminal and server thereof

A terminal, method and system for providing a CS service, a SIP-based service, or a CSI service, are provided. According to an embodiment, the terminal includes a controller to receive a terminal capability version of at least one target terminal, to compare the received terminal capability version with a previously stored terminal capability version of the at least one target terminal, and to determine whether to request for terminal capability information of the at least one target terminal based on the comparison result, wherein the terminal capability version identifies a version of capabilities of the at least one target terminal.

A method and terminal for controlling Voice Call Continuity (VCC) functions initiated by a network, are discussed. According to an embodiment, the method includes receiving, by a terminal, a VCC function notification message, the VCC function notification message including VCC enabling information indicating whether a VCC function of the terminal is to be enabled or disabled; and enabling or disabling the VCC function of the terminal based on the VCC function notification message.

Method for controlling VCC functions initiated by network and terminal and network server thereof

A Session Initiation Protocol (SIP) based session setup method and an terminal thereof, wherein the SIP based session setup method, in a session setup process performed between terminals in a SIP based network which includes at least one or more of the terminals and at least one or more entities, comprises sending a SIP INVITE message from a first terminal to a second terminal, receiving and analyzing the SIP INVITE message by the second terminal, and including a certain service condition in a SIP RESPONSE message, by the second terminal, and sending the SIP RESPONSE message including the service condition to the first terminal.

SIP based session setup method and terminal thereof

A method, terminal and server for controlling a domain transfer operation, are discussed. According to an embodiment, the method includes determining, by a terminal, whether a session is transferred from a first domain to a second domain, wherein the determining is based on an operator policy and radio conditions, wherein the operator policy is received by the terminal from a network, and wherein the operator policy includes at least one of first information indicating an operator's preferred domain and second information indicating whether to initiate the domain transfer in a short time.

Method for requesting domain transfer and terminal and server thereof

There is provided a multiple network connection method through a first communication device constituting a multiple network together with one or more second communication device, comprises: transmitting a service request message to the second communication device by the first communication device; transmitting a response message including service connection information to the first communication device by the second communication device; transmitting the service request message including the service connection information to a network management server by the first communication device; transmitting a request message to set a new connection path with the second communication device to a service providing entity or an external communication device by the network management server; and generating a new connection path between the service providing entity or the external communication device and the second communication device, and transceiving data through the new connection path.

A method for transmitting information in a wireless communication system and a wireless communication terminal supporting the method, wherein when an application server sends to a receiving terminal a specific message for checking radio environment information or a message including a radio environment capability, the receiving terminal having received the message may send a response message with its own radio environment information to the application server, such that the radio environment information related to the receiving terminal can be sent to the sending terminal after analyzed by the application server.

A call connection method is provided. When a terminal is in an IMS unregistered state, information indicating whether to perform a session transfer toward a CS domain is stored in a server during a registration or deregistration process. When receiving a call connection request message over an IMS, if the terminal is in the IMS unregistered state and the information indicates the session transfer, the call transfer toward the CS domain can be performed.

Growing community of inventors

Gyeonggi-do, South Korea

Kyung-Ae Yoon