Patent application number | Description | Published |
20110306346 | HANDOVER METHOD - A handover method according to one embodiment of the present invention comprises the steps of receiving the result of a cell measurement for a neighbor cell from a terminal, judging whether the neighbor cell is a near neighbor cell in accordance with the result of the cell measurement, calculating the ratio of the near neighbor cell to the total neighbor cells, and transmitting a command for a handover to a target cell to the terminal if the ratio exceeds the handover threshold value. The handover method of the present invention reduces interference between cells, and efficiently uses radio resources. | 12-15-2011 |
20120156164 | IN SITU-FORMING HYDROGEL FOR TISSUE ADHESIVES AND BIOMEDICAL USE THEREOF - Disclosed herein are an in situ-forming, bioadhesive hydrogel and the medical uses thereof. Being formed by in situ crosslinking through an enzymatic reaction, the hydrogel has an advantage over conventional bioadhesive hydrogels in terms of biocompatibility. In addition, the in situ-forming bioadhesive hydrogel has excellent biocompatibility and mechanical strength and has excellent tissue adhesiveness thanks to modification with/without dopa derivatives. The hydrogel finds a variety of applications in the biomedical field, including bioadhesives or hemostats, implant substances for tissue regeneration and augmentation, carriers for delivering biologically active materials or drugs, etc. | 06-21-2012 |
20120320817 | METHOD AND APPARATUS FOR SELECTING MME IN WIRELESS COMMUNICATION SYSTEM INCLUDING MOBILE RELAY NODE - A method and apparatus for selecting a mobility management entity (MME) in a wireless communication system including a mobile relay node is provided. A donor eNodeB (DeNB) receives a mobile relay indicator from the mobile relay node during a radio resource control (RRC) connection establishment procedure, receives a mobile relay support indication from an MME supporting the mobile relay node during an S1 setup procedure between the MME and the DeNB, and selects the MME supporting the mobile relay node among a plurality of MMEs. | 12-20-2012 |
20130224795 | IMMOBILIZATION METHOD OF BIOACTIVE MOLECULES USING POLYPHENOL OXIDASE - A method is provided for immobilizing a bioactive molecule onto a surface using polyphenol oxidase. In the presence of polyphenol oxidase, a bioactive molecule containing a phenol or catechol group can be simply in situ oxidized within a short time to dopa or dopaquinone which forms a coordinate bond with a metal or polymer substrate, thus immobilizing the bioactive molecule onto the surface with stability. Based on the surface immobilization of bioactive molecules using polyphenol oxidase, various bioactive molecules such as osteogenetic peptides and growth factors can be simply immobilized to medical metal or polymer substrate surfaces such as orthopedic or dental implants which can be then effectively used to induce rapid osteogenesis after being transplanted. Also, antithrombotic agents and/or entothelialization inducing agents may be immobilized to medical substrates for vascular systems, such as stents and artificial blood vessels, thus guaranteeing hemocompatibility to the medical substrates. | 08-29-2013 |
20130272268 | METHOD AND APPARATUS FOR VERIFYING RELEASE OF LIPA PDN CONNECTION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for verifying a release of a local IP access (LIPA) packet data network (PDN) connection in a wireless communication system is provided. A mobility management entity (MME) receives a handover preparation message from a source home eNodeB (HeNB), verifying whether the LIPA PDN connection has been released or not on receiving the handover preparation message. If the LIPA PDN connection has been released already, the MME performs a normal handover procedure. If the LIPA PDN connection has not been released, the MME transmits a handover preparation failure message to the source HeNB. | 10-17-2013 |
20130322390 | METHOD AND APPARATUS FOR INITIATING X2 INTERFACE SETUP IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting a transport network layer (TNL) address in a wireless communication system is provided. A home eNodeB (HeNB)/X2-proxy determines a TNL address and an eNB ID to be transmitted in a configuration transfer message based on an indication whether a direct X2 interface or an indirect X2 interface is to be established between a macro eNB and a HeNB. Or, in case that the direct X2 interface between the macro eNB and the HeNB is not available, the HeNB GW/X2-proxy modifies the TNL address of the HeNB and the eNB ID of the HeNB in the configuration transfer message into a TNL address of the NeNB GW/X2-proxy and an eNB ID of the HeNB GW/X2-proxy | 12-05-2013 |
20140010204 | METHOD AND APPARATUS FOR RELEASING USER EQUIPMENT CONTEXT IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for releasing a user equipment (DUE) context in a wireless communication system is provided. A home evolved NodeB (HeNB) gateway (GW)/X2-proxy receives a UE context release message, forwards the UE context release message to a source eNB; and releasing the UE context of the corresponding UE. The source eNB and the target eNB may be connected through an indirect X2 interface. Or, a home evolved NodeB (HeNB) gateway (GW)/X2-proxy receives a UE context release request message from a source eNB, and releases the UE context of the corresponding UE based on the UE context release request message. The source eNB and the target eNB may be connected through a direct X2 interface. | 01-09-2014 |
20140213264 | METHOD AND APPARATUS FOR TRANSMITTING ESTABLISHMENT CAUSE VALUE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of performing a handover procedure in a wireless communication system is provided. The target eNodeB (eNB) receives a specific establishment cause of a user equipment (UE). The specific establishment cause among a plurality of establishment causes comprises emergency, high priority access, mobile terminated access, mobile oriented signaling, mobile oriented data, and delay tolerant access. The target eNB transmits a handover command message to the UE after receiving the specific establishment cause. | 07-31-2014 |
20140287762 | METHOD AND APPARATUS FOR REPORTING SHORT STAY IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for avoiding a short stay problem in a wireless communication system is provided. An eNodeB (eNB) may determine a ratio of a number of short stay user equipments (UEs), which stay at a cell shorter than specific threshold time, to total number of UEs staying at the cell, and transmit the ratio of the number of short stay UEs to the total number of UEs to a previous eNB. Or, the eNB may receive measurement information of at least one second cell from a UE, determine whether the UE can be connected to the at least one second cell, and notify a second eNB whether the UE can be connected to the at least one second cell or not. | 09-25-2014 |
20140370900 | METHOD AND APPARATUS FOR INDICATING HANDOVER IN WIRELESS COMMUNICATION SYSTEM INCLUDING MOBILE RELAY NODE - A method and apparatus for indicating a handover in a wireless communication system is provided. A mobile relay node (RN) receives an indication which indicates that there is no eNB supporting relay within neighbor cells from a donor eNodeB (cNB) serving the mobile relay node, and transmits a handover command message to user equipments (UEs). | 12-18-2014 |