Abstract:
The present invention relates to a wireless communication system for a handover to a femto base station. The invention provides the wireless communication system including: femto subscriber information storage that stores an available-connection list listing femto base stations which allow the connection between each terminal and plural terminals; and a core network entity, a macro base station or a serving femto base station which receives and stores the available-connection list and requests the handover to a target base station if the target base station is included in the stored available-connection list when one terminal among the plural terminals requires the handover that designates the target base station as a femto base station. In addition, the invention provides the handover method of the core network entity and macro base station.
Abstract:
An access admission control method and system for and SAE/LTE system is provided for determining whether to accept or reject an access of a User Equipment (UE) to a Home evolved Node B (HeNB) based on the subscriber information of the UE. In an access admission control method according to the present invention, a HeNB or HeNB Gateway (HGW) transmits, when an access request message is received from a UE, the access request message to a Mobility Management Entity (MME) together with a CSG ID of the HeNB, and the MME determines, whether to accept or reject the access of the UE to the HeNB based on whether the CSG ID is contained in a white list associated with the UE.
Abstract:
The present invention relates to a method and system for the management of the mobility, the management of an idle mode, the registration management (management of attachment and detachment), and the location management (management of tracking area) of a terminal by using a non-access stratum (i.e., network stratum, hereinafter referred to as "NAS") in a mobile telecommunication network. To this end, the method for the management of mobility, the management of an idle mode, the registration management, and the location management of a terminal by using a NAS protocol, i.e., messages, according to an embodiment of the present invention, includes a terminal (hereinafter, referred to as "UE") and a mobility management entity (hereinafter, referred to as "MME"), and addresses to a method for efficiently processing security protected NAS messages if received messages are security protected NAS messages, in a case of transmitting or receiving messages serving as EMM (EPS Mobility Management) messages, i.e., mobility management messages, in a network such as an EPS (Evolved Packet System) of 3GPP, when the terminal performs handover in an active mode, performs location management in an idle mode, and registers to a network, thereby achieving improved efficiency in the mobility management, the position management, and the registration management of a terminal.
Abstract:
A handover method between heterogeneous networks, in which a call manager of a network having a Circuit Switching (CS) network supporting a CS call, a Long Term Evolution (LTE) network supporting a packet call, and an Internet Protocol Multimedia Subsystem (IMS) network for anchoring a call, provides handover from the CS network to the LTE network to a terminal that uses one radio channel and can access the CS network and the LTE network.
Abstract:
A method and communication system for assigning the control authorization for controlling functions of a device from a terminal to another terminal in a communication system is provided. Through the method, it is possible to simplify the authentication process of a terminal having the communication function based on the short messaging service, and to reduce the security information size generated in the authentication process.
Abstract:
A method for managing a device that provides M2M services according to the present invention comprises: a process where a device that provides the M2M services to a user transmits a device registration request message requesting that the device be registered, after the connection setup with a wired/wireless network has been completed; a process where a service server that receives the device registration request message performs authentication for the device and analyzes information about the device to set up M2M service provider information which is necessary to provide the M2M service to the device, provided that the device has been registered for the first time; a process where the service server saves, in a user/device repository, the device registration information included in the device registration request message as well as device profile information including the M2M service provider information; a process where the user/device repository generates reference information for making reference to the device profile information; and a process where the service server acquires the reference information from the user/device repository.
Abstract:
A local breakout session establishment method and apparatus in an Evolved Packet System (EPS) is provided for an HeNB to efficiently route local IP packets. A local breakout service method for a wireless communication system including a macro evolved Node B (eNB) and a Home eNB (HeNB) having a Packet Data Network (PDN) gateway (PGW) and a serving gateway (SGW) includes selecting, at a Mobility Management Entity (MME), the PGW of the HeNB and transmitting a Create Default Bearer Request message to the HeNB in response to a local breakout service request message including a local breakout Access Point Name (APN); assigning, at the HeNB, an IP address to a user equipment transmitted the local breakout service request message and transmitting a Create Default Bearer Response message including a Tunnel Endpoint Identifier (TEID) to the MME; transmitting a Bearer Setup Request message including the TEID from the MME to the HeNB; and configuring, at the HeNB, a radio bearer with the user equipment and routing data transmitted by the user equipment through the radio bearer to an Internet Protocol (IP) network by means of the internal PGW.
Abstract:
In a network system including at least one mobility anchor point (MAP) for managing mobility of a mobile node (MN) and a plurality of routers connected to the at least one MAP in a hierarchical structure, the MAP sends a MAP option to at least one router located on a higher level than the MAP. When receiving the MAP option, the router located on the higher level sends an updated MAP option to neighboring routers, after incrementing a predetermined upward value comprised in the MAP option. MAPs distributed in the network system can deliver MAP options regardless of the hierarchical structure of routers, and hence the MN can maximize its location privacy. Because the MAP performs MAP domain announcement using a DOMAIN option, service use of routers outside the MAP domain can be limited, and the number of times that a MAP is changed can be reduced.
Abstract:
Disclosed is a system for providing handover of a mobile node in a wireless network supporting Mobile IP. The mobile node sends, when handover is needed, a request for neighbor access router information to a first access router currently communicating with the mobile node, and selects, if the neighbor access router information is received, a second access router serving as a target access router using the received neighbor access router information. The first access router exchanges access router information with a neighbor access router, provides neighbor access router information to the mobile node upon receiving the neighbor access router information request from the mobile node, and redirects data to be delivered to the mobile node to the second access router to which the mobile node will be handed over. The second access router forwards data to be delivered to the mobile node to the corresponding mobile node.