Patent application number | Description | Published |
20110086651 | TECHNIQUES FOR INTERFERENCE MITIGATION IN MULTI-TIER COMMUNICATION SYSTEM - A method and a Mobile Station (MS), for use in a wireless communication network comprising a plurality of Base Stations (BSs) capable of communicating with a plurality of MSs, wherein at least some of the BSs are Femtocell BSs (FBSs) and at least some of the BSs are Macrocell BSs (MBSs), for mitigating interference are provided. The method includes detecting, by an MS, an interfering Closed Subscriber Group (CSG) FBS that the MS is not authorized to access, and transmitting, by the MS, a request for mitigation of interference. | 04-14-2011 |
20110096927 | METHOD AND APPARATUS FOR UPDATING AN AUTHORIZATION KEY IN A COMMUNICATION SYSTEM - Provided is an apparatus and method for updating an Authorization Key (AK) of a mobile station in an idle mode in a wireless communication system. A method for operating a mobile station in an idle mode to update an AK in a wireless communication system includes transmitting a first location update request to a base station, the first location update request including a request for updating an AK, receiving a response to the first location update request from the base station, the response to the first location update request including a NONCE_BS, wherein the NONCE_BS is a random number associated with the base station and used for updating the AK, generating a NONCE_MS, wherein the NONCE_MS is a random number used for updating the AK, generating the AK using the NONCE_BS and the NONCE_MS, transmitting a second location update request to the base station, the second location update request including the NONCE_BS and the NONCE_MS, receiving a response to the second location update request from the base station, the response to the second location update request including the NONCE_BS and the NONCE_MS, and confirming the AK based on the NONCE_BS and the NONCE_MS. | 04-28-2011 |
20120265979 | MACHINE-TO-MACHINE NODE ERASE PROCEDURE - A method for erasing bootstrapping, at a device or a gateway in a Machine-to-Machine (M2M) service is provided. The method includes receiving an erase request containing a first M2M-Erase-Token from an M2M Authentication Server (MAS) or an M2M Service Bootstrapping Function (MSBF), processing the erase request based on the first M2M-Erase-Token or a local policy of the device or the gateway, and sending an erase response containing a second M2M-Erase-Token to the MAS or the MSBF. | 10-18-2012 |
20120265983 | METHOD AND APPARATUS FOR PROVIDING MACHINE-TO-MACHINE SERVICE - A method and an apparatus for providing Machine-to-Machine (M2M) service are provided. A method of providing service by an M2M device includes transmitting a request for service to a Network Security Capability (NSEC), the request for service comprising a identifier of a Device Servie Capability Layer (DSCL) of the M2M device, performing an Extensible Authentication Protocol (EAP) authentication with an M2M Authentication Server (MAS) via the NSEC, and generating, if the EAP authentication is successful, a service key using a Master Session Key (MSK), a first constant string, and the identifier of the DSCL. | 10-18-2012 |
20120266223 | METHOD AND APPARATUS FOR PROVIDING MACHINE-TO-MACHINE SERVICE - A method and an apparatus for providing service are provided. A method of providing service by a Machine-to-Machine (M2M) device includes transmitting a request for a first authentication to a Network Security Capability (NSEC), the request for the first authentication including an identifier of the M2M device, performing an Extensible Authentication Protocol (EAP) authentication with the NSEC, and generating, if the first authentication is successful, a secret key using at least one of a Master Session Key (MSK) and the identifier of the M2M device. | 10-18-2012 |
20140213250 | METHOD AND APPARATUS FOR DEVICE TO DEVICE COMMUNICATION - A method and apparatus for performing a device-to-device (D2D) communication by a user equipment and supporting D2D communication by a communication entity. The D2D communication method may include: acquiring ProSe ID of the UE or the UE's user, which is used in the D2D communication; generating an expression by using the ProSe ID; broadcasting the generated expression; receiving a direct D2D connection request message from another UE over a core network; sending a direct connection accept message in response to the direct D2D connection request message; and performing the D2D communication with another UE. Accordingly, D2D communication can be efficiently performed. | 07-31-2014 |
20150264106 | METHOD OF CONNECTING USER EQUIPMENT TO IMS NETWORK THROUGH WEB BROWSER FOR WEB REAL-TIME COMMUNICATION SERVICE - A method that connects a User Equipment (UE) to an Internet Protocol Multimedia Subsystem (IMS) network through a web browser for a Web Real-Time Communication (WebRTC) service is provided. The method, and a UE adapted to the method, downloads a web app for a WebRTC service and connects to an IMS network through a WebRTC client. The UE connects to the IMS network and is registered in the IMS network in such a way as to use a Universal Resource Locator (URL) of an enhanced Proxy-Call Session Control Function (eP-CSCF) obtained by establishing a Packet Data Network (PDN) connection of the UE through a web browser in the process of obtaining a URL of the eP-CSCF, or the obtained URL of an eP-CSCF to which the WebRTC client can connect by transmitting Public Land Mobile Network (PLMN) information of a network to which the UE is connected to a WebRTC Web Server Function (WWSF). Therefore, the UE can easily use WebRTC services. | 09-17-2015 |
20150264612 | METHOD AND APPARATUS FOR TRANSMITTING DATA THROUGH INTER-ENB CARRIER AGGREGATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and an apparatus for transmitting data to user equipment through not only a current base station cell but also a neighboring base station cell via inter-eNB CA in a wireless communication system. A method for transmitting data though carrier aggregation in the wireless communication system, according to the present invention, comprises the steps of: a first base station transreceiving data with a terminal through at least two PDN connections; the first base station transmitting a carrier aggregation request message to a second base station for aggregating carriers, when the first base station determines to carry out inter-eNB carrier aggregation; the first base station receiving a carrier aggregation reply message from the second base station in response to the carrier aggregation request message; the first base station performing an RRC reconfiguration process with the terminal to notify to the terminal of the determination to perform the inter-eNB carrier aggregation; and the first base station transmitting a path change request message to a mobile management entity to correct a data transreceiving path, so that data on at least one PDN connection from among the PDN connections is transreceived through the second base station. | 09-17-2015 |