Sharp Kabushiki Kaisha Corporation

Sharp Kabushiki Kaishi

Shiro Sugahara

Shusaku Fukumoto

Shuichi Takehana

Hidenobu Fukumasa

Akira Ohshima

Yuichi Nobusawa

Takehana Shuichi

There are provided a terminal device capable of reducing power consumption when a plurality of applications perform data communication, a communication method for the terminal device, a program executed by the terminal device, a storage medium having the program stored thereon, and a radio communication system including the terminal device. The terminal device includes: application running means for running a plurality of applications adapted to perform data communication; communication means for performing a procedure necessary for activating data communication to make a state transition to a communicable state, and performing data communication; and management means for controlling execution of subsequent data communication before a transition from the communicable state to another state.

Terminal device, communication method, program, storage medium having program stored thereon, and radio communication system

A base station device includes: an information collection unit configured to collect information for calculating evaluation values for each of first, second, and third transmission paths; an evaluation value calculation unit configured to calculate the evaluation values for each of the first, second, and third transmission paths, based on the collected information; and a transmission path selection unit configured to select, using the evaluation values of each of the first, second, and third transmission paths, a transmission path to be used by a mobile communication terminal.

Wireless communication system, base station device, and wireless communication route selection method

A base station device communicates with a mobile station device, either directly or via a relay station device. The base station device includes: a reference signal transmission instruction unit configured to instruct the mobile station device to transmit a reference signal; and a reference signal measurement instruction unit configured to instruct the relay station device to measure the reference signal that is transmitted by the mobile station device.

Base station device, mobile station device, and communication control method

In a CDMA receiving apparatus, a delay profile using a desired constraint length is generated by a delay profile generating unit from received signal wave-form data recorded on a received signal wave-form buffer unit. Several demodulation paths are selected at peak position of the delay profile by the path search unit. Demodulation symbols which are generated from received signal wave-form data of each demodulation path by the channel demodulating unit are brought into in-phase by an adjustment angle which is obtained by the channel estimating unit. If the reception quality which is measured by the reception quality measuring unit is lower than a predetermined value for a combined demodulation symbol which is combined by a RAKE unit, the combination of said selected demodulation paths or the constraint length is changed to repeat the demodulation operation of the same received signal wave-form data.

Growing community of inventors

Osaka, Japan

Shiro Sugahara