Patent application number | Description | Published |
20100125727 | METHOD AND APPARATUS FOR RECONFIGURING SOFTWARE IN SDR TERMINAL - A method and apparatus for reconfiguring software in a software-based wireless terminal when a new wireless communication service is to be carried out is provided. The method of reconfiguring software at a software defined radio (SDR) terminal including one or more reconfigurable elements, includes: indentifying program installation time and program startup time with respect to the respective reconfigurable elements, selecting a reconfigurable element from the one or more reconfigurable elements based on the program installation time and the program startup time, and placing a program on the selected reconfigurable element. Accordingly, time for installing a new wireless communication service can be reduced in the SDR mobile communication terminal. Thus, convenience can be provided to a user. | 05-20-2010 |
20100136973 | METHOD AND APPARATUS FOR PERFORMING VERTICAL HANDOVER IN SDR TERMINAL - Disclosed are a method and apparatus for allowing a Software Defined Radio (SDR) terminal to perform a vertical handover between different services. The vertical handover method includes: receiving a handover request from an application service which is currently being executed; selecting a new application service which is a handover target from among a plurality of application services, in response to the handover request; installing the new application service in the SDR terminal so that the new application service is executable by the SDR terminal; and performing a handover to the new application service. Accordingly, since handover is performed seamlessly between different services, continuity of service may be ensured. | 06-03-2010 |
20120157051 | METHOD FOR CONROLLING ACCESS OF SUBSCRIBERS IN WIRELESS COMMUNICATION SYSTEM SUPPORTING FEMTO CELL AND APPARATUS FOR THE SAME - Disclosed is a method for controlling access of subscribers of a gateway in a communication system supporting a femto cell, the method including: by user equipment (UE), receiving a first access request message, which makes a request to access a femto base station (BS), from the femto BS; directly acquiring a business subscriber database (DB), which includes a list of UE admittable to access the femto BS, from a DB module; and determining whether to admit the access of the UE on the basis of the business subscriber DB, wherein the determining whether to admit the access of the UE includes admitting the access of the UE if a user equipment identifier (UE ID) for identifying the UE is included in the list of UE. | 06-21-2012 |
20120157077 | METHOD FOR DYNAMIC CHANGE OF OPERATION MODE IN WIRELESS COMMUNICATION SYSTEM - Disclosed is a method of operating a femto base station (BS) in a wireless communication system, the method comprising: receiving an access request comprising a closed subscriber group (CSG) identifier (ID) from user equipment (UE); determining a number N of UE accessing the femto BS; ascertaining an access type to determine whether the UE is a CSG UE or a non-CSG UE of the femto BS on the basis of the CSG ID of the UE; and determining whether to admit access of the UE on the basis of the access type, the N and access admittable information, the access admittable information comprising U | 06-21-2012 |
20120157154 | METHOD FOR CONTROLLING TRANSMISSION POWER IN FEMTO BASE STATION AND APPARATUS THEREOF - A method and an apparatus for controlling transmission power in a femto base station is provided. The method includes: predicting femto base station interference to be given from an adjacent femto base station to a terminal; predicting macro base station interference to be given from a macro base station to the terminal; determining transmission power for the terminal; and transmitting a downlink signal to the terminal on the basis of the transmission power, wherein the femto base station interference is predicted on the basis of a distance between serving femto base station and the adjacent femto base station and the transmission power of the adjacent femto base station, and the macro base station interference is predicted on the basis of a distance between serving femto base station and the macro base station and the transmission power of the macro base station. | 06-21-2012 |
20140241323 | COORDINATED MULTI-POINT TRANSMISSION AND RECEPTION METHOD IN OVERLAID CELL ENVIRONMENT - According to the present invention, a method of performing coordinated multi-point transmission and reception in an overlaid cellular system in which a first base station and a second base station overlay each other, the method comprising performing a handover using a coordinated multi-point transmission and reception scheme based on CRS-RS (Channel State Indicator-Reference Signal) information of user equipment by the first and second base stations. | 08-28-2014 |
20140308953 | METHOD AND APPARATUS FOR MANAGING RADIO RESOURCES IN MULTI-CARRIER AND HETNET-INTEGRATED MOBILE ACCESS ENVIRONMENT - The present invention relates to a method and apparatus for managing radio resources in a multi-carrier and heterogeneous network-integrated radio access environment. A method of managing radio resources in a BS supporting multiple carriers includes sending an RRC connection reconfiguration message, including measurement control information, to UE, receiving a measurement report, including a measurement result for an HetNet RAT cell, from the UE, determining to configure HetNet RAT bearer connection with the UE based on the measurement report, sending an RRC connection reconfiguration message, requesting to configure the HetNet RAT bearer connection, to the UE, and sending some of or the entire traffic for the UE, to the UE through the HetNet RAT bearer. If overload or interference occurs in a serving cell, some of or the entire traffic is transmitted through a cell based on HetNet RAT, if necessary. Accordingly, load balancing or interference coordination can be achieved. | 10-16-2014 |
20140315566 | METHOD AND APPARATUS FOR CONTROLLING INTERFERENCE IN WI-FI-INTEGRATED SMALL CELL ENVIRONMENT - Provided are a method and apparatus for controlling inter-cell interference. In accordance with the present invention, a Wi-Fi signal including interference control information is received from a neighboring cell, the interference control information is transmitted to a small cell transmission/reception module, and a small cell signal is transmitted or received by controlling inter-cell interference based on the interference control information. | 10-23-2014 |
20150055483 | METHOD AND APPARATUS FOR CONTROLLING RESOURCE OF CLOUD VIRTUAL BASE STATION - A method and apparatus for managing a cloud virtual base station system are disclosed. The present invention comprises configuring an initial resource and reconfiguring the resource to add or remove a resource of an execution file of the cloud virtual base station system, monitoring an error of the cloud virtual base station system, a wireless resource, a status of the execution file, or a configuration status of the reconfigured resource, managing configuration information of a list of software added or removed during an operation, controlling the cloud virtual base station system in a predetermined specific mode, managing hardware information, file information, or control information of each module of the cloud virtual base station system, and managing the execution file for each module of the cloud virtual base station system by adding or removing the predetermined specific mode initially or during an operation. | 02-26-2015 |
20150055629 | METHOD AND APPARATUS FOR CONTROLLING INTERFERENCE BASED ON CARRIER AGGREGATION FOR SMALL BASE STATION - A carrier aggregation-based interference control method and apparatus for small base stations are disclosed. The present invention comprises setting a primary component carrier (PCC) as a first carrier and setting a secondary component carrier (SCC) as a second carrier, monitoring a signal-to-interference plus noise ratio (SINR) of the first carrier or the second carrier, and determining whether the SINR of the first carrier is smaller than a predetermined threshold. | 02-26-2015 |