Kabushiki Kaisha Toshiba

Toshiba Infrastructure Systems & Solutions Corporation

Toshihiro Tango

Katsumi Kusama

Yasutaka Iida

Takahiro Yamaura

Kenichi Ohno

Naohiro Honda

A communication relay apparatus and a storage medium storing a computer program that allow improvement of a quality of communication with a mobile station are provided. A communication relay apparatus includes a detector and a controller. The detector detects a mobile station located in a cover area formed by a plurality of remote units. The controller controls, for the remote units, communication resources used by the remote units for communication with the mobile station, based on a detection result of the detector.

Communication relay apparatus and storage medium storing computer program

A communication device according to an embodiment is capable of communicating with another communication device via a first network and a second network each transmitting radio signal data by different communication methods. The communication device includes: a first communicator capable of communicating with another communication device via the first network; a second communicator capable of communicating with another communication device via the second network; a delay parameter acquirer to acquire a delay parameter of the first network; and a delay parameter reflector to reflect the delay parameter of the first network acquired by the delay parameter acquirer on a delay parameter of the second network.

Communication device, communication relay system, and master station apparatus

According to an embodiment, a communication repeater device includes storage and a controller which detects, upon receiving a radio frame including pairs of orthogonal frequency division multiplexing symbols and cyclic prefixes from the radio base station, switching timing between uplink and downlink according to similarity between certain sections of an original radio frame and a time-shifted radio frame. The controller estimates the subsequent switching timing between the uplink and the downlink from the detected switching timing and frame information stored in the storage.

Communication repeater device, control method, and computer program product

According to an embodiment, a communication apparatus includes a switching unit, a reception unit, a rising edge detector, a symbol detector, and a switching timing detector. The switching unit switches a transmission operation of a signal in the communication apparatus between uplink signal transmission and downlink signal transmission. The reception unit receives a signal transmitted in a time division multiplexing scheme. The rising edge detector detects a rising edge of a received signal received by the reception unit. The symbol detector detects a symbol of a signal indicating a guard time in the time division multiplexing scheme from the received signal. The switching timing detector detects a switching timing of the transmission operation from the switching unit on the basis of detection results of the rising edge detector and the symbol detector.

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Fuchu, Japan

Toshihiro Tango