Abstract: To efficiently and appropriately allocate signal sequences, a signal sequence allocation device includes a cell radius calculation module that calculates an area radius of an area in communication areas to which a signal sequence is to be allocated, a signal number calculation module that calculates the number of signals in a signal sequence to be allocated to a communication area based on the area radius, and a signal sequence allocation module that allocates a signal sequence to a communication area based on the number of signals.

Abstract: To efficiently and appropriately allocate signal sequences, a signal sequence allocation device includes a cell radius calculation module that calculates an area radius of an area in communication areas to which a signal sequence is to be allocated, a signal number calculation module that calculates the number of signals in a signal sequence to be allocated to a communication area based on the area radius, and a signal sequence allocation module that allocates a signal sequence to a communication area based on the number of signals.

Abstract: An identification information allocation device allocates an ID of a communication area of a base station efficiently and appropriately. The identification information allocation device includes a group generation module that groups the communication areas of the base station, a group ID allocation module that allocates a group ID to grouped groups, and an ID allocation module that allocates the ID to the communication area of the base station on the basis of the group ID.

Abstract: A mobile communication terminal makes a disconnection of communications less likely to occur even in a rapidly changing wireless communication environment. The terminal includes a transmission power controller configured to measure a reception SIR, and to control a transmission power of a base station in accordance with a result of comparison between the reception SIR and a target SIR. The terminal also includes a target value updater configured to measure a reception BLER, and to update a target SIR in accordance with a measurement result. In addition, the terminal includes a measurement controller configured to acquire a moving state of the terminal to which the measurement controller belongs, and to control a period of measuring the reception BLER and control a cycle of updating the target SIR.

Abstract: A mobile communication terminal station is capable of transmitting a preamble part by use of optimal parameters for a moving speed of the mobile communication terminal station. The mobile communication terminal station is provided with a power ramping section. The power ramping section includes a moving state discrimination section for discriminating the moving state of the mobile communication terminal station and a power ramping transmission parameter selecting section for setting the transmission parameters in response to the moving state that has been discriminated. The preamble part indicating a transmission start of a message is transmitted to a base transceiver station, with the transmission parameters that have been set.

Abstract: The present invention aims to make a disconnection of communications less likely to occur even in a rapidly changing wireless communication environment. To this end, a mobile communication terminal is provided. The provided terminal includes a transmission power controller configured to measure a reception SIR, and to control a transmission power of a base station in accordance with a result of comparison between the reception SIR and a target SIR. The terminal also includes a target value updater configured to measure a reception BLER, and to update a target SIR in accordance with a measurement result. In addition, the terminal includes a measurement controller configured to acquire a moving state of the terminal to which the measurement controller belongs, and to control a period of measuring the reception BLER and control a cycle of updating the target SIR.