Abstract:
An operation method of an in-band full duplex (IFD) multiple-input multiple-output (MIMO) transceiver, including a reception part, a transmission part, an analog self-interference (SI) generator, and a self-interference cancellation (SIC) controller, may comprise generating, at the SIC controller, a control signal for analog SIC and digital SIC and outputting the control signal to the reception part and the analog SI generator; cancelling, at the SIC controller, SI of a transmission signal of the transmission part based on the control signal; and cancelling, at the reception part, SI of a signal of the reception part based on the control signal.
Abstract:
A discovery method is provided by a device in a D2D direction communication. The device selects a discovery resource unit from among discovery resource units which are not being used after listening during one or more discovery resource periods. The device transmits a first discovery signal through the selected discovery resource unit in a broadcasting manner at a first discovery resource period, and transmits a second discovery signal through the selected discovery resource unit in a query-based manner at a second discovery resource period.
Abstract:
A D2D direct communication method is provided. The device sets at least one frame among a plurality of frames included in a superframe to a frame type 0 which is sectionized into a synchronization region for performing a synchronization procedure, a discovery region for discovering devices, a peering region for a connection, and a data region for scheduling of resources and data transmission. The device sets remaining frames among the plurality of frames to a frame type 1 which is sectionized into the synchronization region and the data region.
Abstract:
An exemplary embodiment of the present invention provides a resource management method performed by a coordinator for controlling interference between cells. The coordinator receives a channel state of a second base station neighboring a first base station from the first base station. The coordinator partitions a resource based on the channel state. The coordinator allocates the partitioned resource to the first base station. In addition, the coordinator transmits a first message requesting resource management to be set to the first base station. Here, the first message includes information on the allocated resource.
Abstract:
Disclosed are a segmented parallax barrier based display apparatus with 2D/3D mode switching and a method thereof. The parallax barrier based display apparatus may include a first panel reproducing an image; and a second panel positioned on a front surface of the first panel and including a first liquid crystal for forming a parallax barrier that blocks a part of the image reproduced by the first panel and a second liquid crystal for switching polarization of light that transmits the first liquid crystal.
Abstract:
Upon receiving a multicast packet from a base station, a forwarding terminal connected to the base station establishes a multicast connection with at least one direct communication terminal having a direct communication group identifier mapped to a multicast IP address of the multicast packet, and transmits the multicast packet to the at least one direct communication terminal, thereby providing multicast services to a direct communication terminal not connected to the base station.
Abstract:
A mobile relay station (RS) and a handover method thereof are provided. When it is determined that a mobile RS performs handover from a superordinate base station (BS) to a target BS, information indicating admission of handover is received from the superordinate BS. The mobile RS transmits a service unavailability section to a subordinate terminal, whereby the subordinate terminal is prevented from performing handover to a different BS or a different RS.