Fujitsu Corporation

Toshiro Sawamoto

Hiroyuki Seki

Dai Kimura

Kenji Suda

Takaharu Kobayashi

Kazuaki Ando

According to an aspect of the embodiments, a base station device in a wireless communication system including a terminal device and a base station device that is wirelessly connected to the terminal device and transmits signals to the terminal device, the base station device includes, an acquirer which acquires a first version of a signal format corresponding to the terminal device, and a transmitter that transmits, to the terminal device, difference information relating to a signal used for a different purpose from a purpose of a signal of a second version corresponding to the base station device when the first version differs from the second version.

Base station device, terminal device, wireless communication system, and radio resource information notification method

A communication control apparatus including a processor is provided. The processor is configured to calculate a first predicted communication quality of a mobile station apparatus in a state not including an interference signal from one or more cells among surrounding cells in accordance with measurement results of a quality of reception of a signal from a serving cell and strength of interference signals from the surrounding cells as measured by the mobile station apparatus, and judge permission for transmission of signals by the one or more cells in a radio resource of communication of the mobile station apparatus based on the first predicted communication quality.

Communication control apparatus, base station apparatus, and communication control method

An information processing device, includes: a memory configured to store data of one or more indices of radio quality at a plurality of points; and a processor coupled to the memory and configured to: identify one or more points among the plurality of points other than a current location of a mobile terminal that requests communication, and determine whether to permit the communication based on statistical information obtained from the one or more indices of the radio quality at the one or more points.

Information processing device, communication control method, and mobile communication system

This disclosure relates to a base station where the base station includes a selector that based on wireless communication states with each mobile station, selects a mobile station for which amplification is to be performed at a relay station; and a reporter that reports information related to the mobile station selected by the selector, wherein the reporter has a function of transmitting report information to the relay station and reports as the report information, the information related to the mobile station and information concerning a gain factor that is selected based on the number of mobile stations for which amplification is to be performed.

Base station, relay station, wireless communication system, and wireless communication method

There are provided a communication device, service-area adjusting method, and mobile communication system capable of accurately executing an optimization algorithm on an actual field. An EMS (a communication device) acquires an index value indicating downstream reception quality of a mobile station in a communication area from the mobile station via a base station in the communication area with respect to each mobile station. Then, the EMS determines whether to start or end the execution of arithmetic processing of a transmission parameter of each base station in the communication area by comparing a value based on at least any of average communication quality between the base station and mobile station in the communication area, throughput, and received power, which is obtained based on an index value of each mobile station, with a reference value.

Device, method, and system for adjusting a mobile communication service area

A base station of a mobile device's movement destination receives a diversity handover (DHO) start notification from a mobile station at the beginning of a DHO. This notifies a radio network control apparatus and an instruction is issued to the base station to add a radio link. The time for transmitting data to a mobile device is determined, the transmission timing is rounded up, and the data is transmitted from the base station to a mobile device. In this event, a search window's timing for receiving data from the mobile device is shifted with the round up of the transmission timing; and therefore the width of the search window is enlarged. The movement destination's base station also receives a DHO complete notification from a mobile device at the completion of the DHO. The movement destination's base station changes the width of the width-enlarged window back to the original width.

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Yokohama, Japan

Toshiro Sawamoto