Abstract:
A method and system for transmitting a message to a terminal is provided, and the method for transmitting a message in a message transmission system including an Inter-Working Function (IWF) identified by a Representative Mobile Subscriber Integrated Services Digital Network Number (R-MSISDN) according to an embodiment of the present invention includes transmitting, at transmission side, a message including the R-MSISDN and an address of a recipient terminal to the IWF; extracting, at the IWF, the address of the recipient terminal from the message; acquiring, at the IWF, routing information using the address of the recipient terminal; rebuilding, at the IWF, the message using the routing information; and transmitting, at the IWF, the rebuilt message to the recipient terminal based on the routing information. The method according to an embodiment of the present invention is advantageous to transmit a message in case where the recipient routing information is not provided.
Abstract:
A method and an apparatus for managing User Equipment (UE) history information are provided. The method for managing user equipment history information in a wireless communication network includes determining if a recording event occurs when the user equipment enters into an idle mode; recording information about the recording event in idle mode user equipment history information when the recording event occurs; and transmitting the recorded idle mode user equipment history information to a base station when the user equipment accesses the base station.
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:
The present invention relates to a wireless communication system and method for establishing connection between a User Equipment (UE) and a Mobility Management Entity (MME) in the wireless communication system in which the data-centric terminal requests the mobility management entity for attachment and checks, when the mobility management entity responds, data-centric features supported by the mobility management entity. According to the present invention, it is possible to connect the data-centric terminal to the mobility management entity supporting the data-centric features of the corresponding data-centric terminal efficiently in the wireless communication system.
Abstract:
A method and an apparatus for controlling network access of a User Equipment (UE) based on the network's load and time tolerance (delay tolerance) are provided. A network access method for a terminal in a wireless communication system includes sending an access request message containing a time-tolerant indicator at a predefined time, determining, when a reject message is received, a cause value and a hold time contained in the reject message, and re-sending the access request message after the hold time elapses.
Abstract:
The present invention relates to a method and apparatus for performing handover in a wireless communication system, and the handover method of the present invention includes checking, when a Path Switch Request message associated with a terminal is received from a base station, whether a list of terminal security information values which has been saved exists; generating, when the list exists, a Path Switch Request acknowledge message including an unused terminal security information value selected form the list; and transmitting the Path Switch Request acknowledge message to the base station. Through this procedure, it is possible to reduce the terminal handover signal load generated by the base station.
Abstract:
A security system processing method of a User Equipment (UE) and a security system for a wireless communication system are provided. The security processing method of the UE includes transmitting a Layer 3 message including a UE security capability to a Mobility Management Entity (MME) and the eNB, receiving a Access Stratum Security Mode Command (AS SMC) including a AS security algorithm selected by the eNB, as a result of verification of the UE security capability and information received from the MME, and a AS Message Authentication Code (MAC), transmitting a AS security mode complete message including the AS SMC to the eNB after verification of integrity of the AS SMC using the AS MAC, and transmitting, when receiving a Non Access Stratum (NAS) SMC including the UE security capability, a NAS security mode complete message to the MME after verification of integrity of the NAS SMC.
Abstract:
The present invention relates to a method and apparatus for controlling transmission power of the base station in a wireless communication system and includes calculating signal-to-noise ratio of a target component carrier and recovering the signal-to-noise ratio to be equal to or greater than a threshold by increasing a transmission power to a predetermined level and requesting, when the signal-to-noise ratio is less than a predetermined threshold, a neighbor base station to decrease the transmission power. According to the present invention, it is possible to suppress the inter-cell interference and improve channel utilization efficiency, resulting in improvement of the throughput of the wireless communication system.
Abstract:
The present invention relates to a wireless communication system and method for establishing connection between a User Equipment (UE) and a Mobility Management Entity (MME) in the wireless communication system in which the data-centric terminal requests the mobility management entity for attachment and checks, when the mobility management entity responds, data-centric features supported by the mobility management entity. According to the present invention, it is possible to connect the data-centric terminal to the mobility management entity supporting the data-centric features of the corresponding data-centric terminal efficiently in the wireless communication system.
Abstract:
A method and an apparatus for supporting a discontinuous reception (DRX) operation in a Node B in a mobile communication system are provided. The method includes defining a second System Frame Number (SFN) where one cycle of a first SFN corresponds to one bit, transmitting information on the second SFN to a User Equipment (UE), determining a second SFN which is used to transmit a paging signal to the UE, determining a first SFN which is used to transmit the paging signal in the determined second SFN, and transmitting the paging signal to the UE at the determined first SFN.