Abstract:
Disclosed are a D2D direct communication method and apparatus in a cloud base station system. The present invention includes receiving a measurement result, including information about D2D proximity or interference from other devices, from each of a first device and a second device, determining whether or not to admit D2D direct communication between the first device and the second device based on the measurement results, sending radio resource information to a second base station and receiving radio resource information of the second base station if it is determined that the D2D direct communication is admitted, negotiating radio resources, allocated for the D2D direct communication, with the second base station using the internal primitive, and allocating radio resources to the first device based on the negotiation.
Abstract:
An exemplary embodiment of the present invention provides a method for managing, by a management system, an enterprise zone. The management system constructs information on a plurality of small cell base stations and at least one terminal. The management system allocates at least one closed subscriber group (CSG) ID to the enterprise zone including cells of the small cell base stations. Further, the management system transmits a message for adding the CSG ID to a whitelist of the terminal to the terminal.
Abstract:
A method in which a base station manages information for D2D communication, which is direct communication between terminals, is provided. The base station receives a first message that requests a configuration of a first open discovery service that searches for a first terminal and at least one terminal to perform D2D communication. The base station determines whether a resource to allocate to the first terminal exists. The base station stores first information for providing the first open discovery service based on the determination result.
Abstract:
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.
Abstract:
Disclosed are a method for allocating a resource to a D2D link of a base station, including determining a D2D link resource to be allocated to the D2D link among cellular resources of the base station, and transmitting uplink control information including information on the D2D link resource to at least two terminals which are connected by the D2D link among a plurality of cellular terminals connected to the base station, and a method for transmitting/receiving data to and from a terminal, including: searching for a white space of cellular resources; transmitting a search result for the white space to a base station of coverage to which the terminal belongs; receiving resource information determined depending on the search result; and transmitting/receiving data to and from the adjacent terminals through the D2D link based on the resource information.
Abstract:
Disclosed are a method and apparatus for managing a cloud virtual base station system. The present invention includes setting initial resources and driving or downloading an execution file or environment file of the cloud virtual base station system and monitoring or managing a state for a failure, radio resources, or the execution file or the environment file of the cloud virtual base station system.
Abstract:
When receiving a detachment notification message informing of detachment of a first D2D device, a D2D server in a device-to-device (D2D) communication system performs a D2D communication release procedure of an opponent D2D device which is communicating with the first D2D device, and deletes information for the D2D communication of the opponent D2D device.
Abstract:
A method of providing a physical cell identity (PCI) assignment by a management server for small-cell base stations (BSs) in a heterogeneous network environment includes setting a location coordinate and radius for the small-cell BSs; grouping every first preset number of small-cells together to define one femto zone; constructing a location map for each femto zone; grouping every second preset number of femto zones to define one femto group; and constructing a location map for each femto group.
Abstract:
A method of managing a service mode of a femto cell base-station and access allowance for a terminal is disclosed. The method of managing access allowance includes receiving a first access allowance change request for a terminal, and transmitting a second access allowance change request for the terminal to a mobility management entity (MME) in response to the first access allowance change request. With the method of the example embodiments of the present invention, the service mode of the femto base-station and the access allowed terminal can be changed in real time according to a situation of the user. Accordingly, quality of service can be improved and efficient management of the femto base-station can be achieved through interference control between the macro base-station and the femto base-station.