| Patent application number | Description | Published |
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| 20100232606 | METHOD AND SYSTEM FOR AUTHENTICATING IN A COMMUNICATION SYSTEM - A method and system for authenticating in a communication system are provided. The method includes, in a first authenticator, sending an authenticator relocation request to a second authenticator transmitting a hash value for an authentication parameter of a Mobile Terminal (MT), a random parameter | 09-16-2010 |
| 20110044454 | Method and apparatus for reducing overhead for integrity check of data in wireless communication system - A method and an apparatus reduce overhead for data integrity checks in a wireless communication system. When receiving a message, a first Integrity Check Value (ICV) is compared with a second ICV to detect an integrity error in the message. When the integrity error exists in the message, a frequency of the integrity error is counted. When the frequency of the integrity error is more than a threshold, a key update procedure is performed. Therefore, the overhead of the information for integrity check may be reduced in the wireless communication system. | 02-24-2011 |
| 20110069654 | APPARATUS AND METHOD FOR MULTI-HOP RELAY COMMUNICATION IN BROADBAND WIRELESS COMMUNICATION SYSTEM - An apparatus and operating method of a Relay Station (RS) and a Base Station (BS) controller for a multi-hop relay communication in a broadband wireless communication system is provided. The method of the RS includes, when receiving at least one traffic Media Access Control (MAC) Protocol Data Unit (PDU) from a Mobile Station (MS) accessing the RS, extracting a Layer-3 (L3) packet from the at least one traffic MAC PDU, generating a relay MAC PDU including the L3 packet, and transmitting the MAC PDU to the BS through an RS Service Flow (SF) which supports Quality of Service (QoS) required by an MS SF carrying the L3 packet. | 03-24-2011 |
| 20110069659 | METHOD AND APPARATUS FOR PROVIDING LOCAL BREAKOUT SERVICE IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for providing a Local BreakOut (LBO) service in a wireless communication system are provided. In the method for providing an LBO service in a wireless communication system, after an access authentication procedure between an authentication server and a terminal, a femto gateway receives a subscriber profile including LBO service flow information from the authentication server to provide the LBO service flow information to a femto base station through initial service flow setting between the terminal and the femto gateway. The femto base station sets an LBO service flow through a Dynamic Service Addition (DSA) procedure. The terminal performs a Dynamic Host Configuration Protocol (DHCP) procedure through the LBO service flow setting, and obtains an IP address for LBO based on the DHCP procedure. | 03-24-2011 |
| 20110069681 | METHOD AND APPARATUS FOR SUPPORTING SHORT MESSAGING SERVICE OF MOBILE STATION DURING IDLE MODE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for supporting a Short Message Service (SMS) of a Mobile Station (MS) during an idle mode in a wireless communication system are provided. An MS operation method for supporting an SMS in a wireless communication system includes receiving an SMS message from a Base Station (BS) through a ranging message in an idle mode, upon receiving the SMS message from the BS, starting a timer, while the timer operates, waiting UpLink (UL) resource allocation for transmission of an ACKnowledge (ACK) message about the SMS message, and upon being allocated a UL resource for the ACK message transmission, and transmitting the ACK message using the UL resource. | 03-24-2011 |
| 20110076987 | METHOD AND SYSTEM FOR CHANGING ACCESS SERVICE NETWORK OF MOBILE STATION IN COMMUNICATION SYSTEM - A method and a system for relocating an Access Service Network (ASN) of a Mobile Station (MS) in a communication system are provided. In the method, when an MS that operates in an idle mode moves from a first ASN to a second ASN, the MS transmits a ranging request message to a base station of the second ASN in order to update a location. The base station transmits a location update request message to an ASN-GateWay (GW) of the second ASN according to the ranging request message. When the location update request message is received, the ASN-GW transmits a relocation notify message including type information for location update to the first ASN. The first ASN transmits a relocation notify response message including paging information to the ASN-GW according to the relocation notify message. | 03-31-2011 |
| 20110107087 | APPARATUS AND METHOD FOR REFRESHING MASTER SESSION KEY IN WIRELESS COMMUNICATION SYSTEM - A Master Session Key (MSK) refresh in a wireless communication system is provided. A MSK refreshing method MSK includes when receiving a first Media Access Control (MAC) message including MSK refresh indication information from a Base Station (BS), generating, at a Mobile Station (MS), an Extended Master Session Key (EMSK)_Hash by applying a hash function to an EMSK and sending a second MAC message including the EMSK_Hash, sending, at the BS, a context request message including the EMSK_Hash to an Access Service Network GateWay (ASN-GW), sending, at the ASN-GW, an authentication request message including the EMSK_Hash to an authentication server, when receiving the authentication request message including the EMSK_Hash, confirming, at the authentication server, the same EMSK as the MS based on the EMSK_Hash, determining an MSK | 05-05-2011 |
| Patent application number | Description | Published |
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| 20090119509 | METHOD FOR NEGOTIATING SECURITY-RELATED FUNCTIONS OF SUBSCRIBER STATION IN WIRELESS PORTABLE INTERNET SYSTEM - The present invention relates to a subscriber station security-related parameter negotiation method in a wireless portable Internet system. The subscriber station security-related parameter negotiation method includes security-related parameters in transmitting/receiving basic capability negotiation request messages and basic capability negotiation response messages such that the subscriber station and the base station negotiate the subscriber station security-related parameters. The security-related parameters include an authorization policy support subfield used to negotiate an authorization policy between the subscriber station and the base station, and message authentication code mode subfields used to negotiate a message authentication code mode. The base station can inform the subscriber station that authentication or message authentication is not performed and is omitted according to a service provider policy by writing it on the authorization policy support subfield or message authentication code mode subfield. In addition, the subscriber station and the base station can select an authorization policy formed with at least one combination through the authorization policy support subfield of the security negotiation parameters. According to the present invention, the service provider of the wireless portable Internet system can more efficiently and flexibly manage the system by providing a scheme for omitting an authentication function and a message authentication function as well as for supporting various authorization policies and message authentication functions. | 05-07-2009 |
| 20100226350 | SYSTEM AND METHOD FOR COMMUNICATIONG USING INTERNET PROTOCOL - Disclosed is a system and a method for communication using different IPs, i.e. a mobile IP supporting mobility and a simple IP, according to the service by a UE. The method includes network initiated IP allocation (i.e. the network allocates different IPs to the UE) and UE initiated IP allocation (i.e. the UE directly requests an IP corresponding to a specific service). As such, the IP is selected and used based on consideration of continuity of the service to be supported by the UE. | 09-09-2010 |
| 20100238988 | SYSTEM AND METHOD FOR CONTROLLING WIRELESS NETWORK ACCESS INFORMATION IN USING REMOVABLE EXTERNAL MODEM - Disclosed are a system and a method for controlling wireless network access information in using a removable external modem. These relates to a case where a removable external modem among devices for a wireless access server (e.g. WiMAX) is connected with a host customer electronics (CE) device so as to be used. Particularly, in a case where the removable external modem, which has no information for accessing a specific network, e.g. operator Lock, a roaming list, a credential, operator ID, etc., when it is introduced, receives network access information through initial access, registration, and provisioning step, and is connected to other device to be used, the modem can be directly connected to a network of an existing registered network communication provider without a separate supplementary registration or a provisioning step. | 09-23-2010 |
