Abstract: A wireless apparatus includes a wireless unit to convert a wireless signal received by an antenna into a baseband signal; and a baseband processing apparatus to receive a packet corresponding to the baseband signal via a communication line connected with the wireless unit, to detect an error in a transmission process of the packet via the communication line, to obtain the baseband signal based on packets other than the packet in which the error is detected, to generate transmission power information used for downlink transmission power control based on the obtained baseband signal, to transmit the baseband signal having the generated transmission power information reflected to the wireless unit via the communication line, and to have the wireless unit execute wireless transmission of a wireless signal corresponding to the baseband signal having the transmission power information reflected.

Abstract: A radio communication apparatus includes a baseband processing unit and a radio unit. The baseband processing unit transmits, to the radio unit, first data indicating a plurality of candidates for instructions corresponding to a plurality of values to be taken by the control information before obtaining the control information on radio communication. Furthermore, the baseband processing unit transmits, to the radio unit, second data for identifying the instruction corresponding to the value of the obtained control information of the plurality of candidates for instructions, after obtaining the control information. The radio unit performs processing in accordance with the instruction identified by the received second data of the plurality of candidates for instructions indicated by the received first data.

Abstract: A wireless apparatus includes a wireless unit to convert a wireless signal received by an antenna into a baseband signal; and a baseband processing apparatus to receive a packet corresponding to the baseband signal via a communication line connected with the wireless unit, to detect an error in a transmission process of the packet via the communication line, to obtain the baseband signal based on packets other than the packet in which the error is detected, to generate transmission power information used for downlink transmission power control based on the obtained baseband signal, to transmit the baseband signal having the generated transmission power information reflected to the wireless unit via the communication line, and to have the wireless unit execute wireless transmission of a wireless signal corresponding to the baseband signal having the transmission power information reflected.

Abstract: A wireless device includes a wireless unit, a baseband processing unit, an event-initiation detecting unit, and an amplitude-level control unit. The wireless unit performs signal processing on a radio signal. The baseband processing unit is connected to the wireless unit through a digital communication channel and transmits/receives a digital signal with the wireless unit through the digital communication channel. The event-initiation detecting unit detects whether an event causing a fluctuation in power supply voltage supplied to the wireless unit or the baseband processing unit is initiated. The amplitude-level control unit increases, when the event-initiation detecting unit has detected that the event is initiated, amplitude of a digital signal transmitted/received through the digital communication channel before the event is initiated.

Abstract: A radio device includes a radio section which transmits a digital signal through a digital communication path, and a baseband processing section which performs a baseband processing on the digital signal received from the radio section, wherein the baseband processing section performs error detection of the digital signal before performing the baseband processing, and wherein, when an error is detected in the digital signal, the baseband processing section performs the baseband processing without waiting for reception of a retransmitted signal from the radio section.

Abstract: A wireless device is configured so that an RF-IC unit calculates a difference value between IQ data received by an antenna Ant1 and IQ data received by an antenna Ant2 and transfers the difference value to a base band processing unit, instead of the IQ data received by the antenna Ant2. The wireless device is further configured so that the base band processing unit reconstructs the IQ data corresponding to the antenna Ant2, based on the difference value and the IQ data received by the antenna Ant1.

Abstract: There are provided a method for controlling communication of a radio terminal with a radio base station at transmission power granted by the radio base station at a request of the radio terminal to the radio base station. The radio terminal, allocates, during communication through an uplink data channel (E-DPDCH) at first transmission power granted by the radio base station, at least part of second transmission power of an uplink control channel (HS-DPCCH) to the uplink data channel (E-DPDCH) by controlling a transmission state of the uplink control channel (HS-DPCCH); and requests the radio base station to increase the first transmission power for the uplink data channel (E-DPDCH) in accordance with the allocating.

Abstract: A communication method including receiving a common channel signal, transmitting information indicating a reception state based on data included in the received signal, determining whether or not the data included in the received signal is acquirable, measuring fading speed based on the received signal in the case where the data is determined not to be acquirable, estimating whether or not the data is determined to be acquirable by re-determination based on the measurement result, and adding specified signals before and after the information indicating the reception state when the estimating results in a determination that the data is acquirable by re-determination.

Abstract: A mobile terminal includes a receiving part configured to receive from a base station a reception signal including a control signal used for controlling transmission power; a comparing part configured to compare a correlation value, which is obtained from the control signal included in the reception signal and a first unique signal, with a threshold; a control part configured to control the transmission power based on a comparison result of the comparing part; and a threshold generating part configured to change the threshold according to a reception environment.

Abstract: A method of transmit power control to allow a transmission side to execute transmit power control so that a signal to interference ratio (SIR) measured at a reception side is matched with a target SIR, the method includes digitizing a reception environment at the reception side, and setting the target SIR corresponding to an error rate of reception data for each of the reception environments; and changing the target SIR in accordance with the reception environment measured at the reception side or the reception environment selected at the reception side.

Abstract: An UE receives a downlink data channel from a BS, calculates a reception quality value related to the downlink data channel, monitors a transmission rate of an uplink data channel to BS, and reduces the calculated reception quality value based on a result of the monitoring.

Abstract: A radio device includes a radio section which transmits a digital signal through a digital communication path, and a baseband processing section which performs a baseband processing on the digital signal received from the radio section, wherein the baseband processing section performs error detection of the digital signal before performing the baseband processing, and wherein, when an error is detected in the digital signal, the baseband processing section performs the baseband processing without waiting for reception of a retransmitted signal from the radio section.

Abstract: In a communication apparatus which transmits parameters corresponding to a reception environment to a transmitting apparatus which switches the transmission rate based on the reception environment, reception quality calculated in the past is saved as a first reception quality, and past CPICH symbols used in calculating this first reception quality are saved. Channel compensation of the saved past CPICH symbols is performed using a current channel estimation value, and the channel-compensated CPICH symbols are used to calculate a second reception quality; the difference between this second reception quality and the first reception quality is used as a reception quality correction value to correct reception quality.

Abstract: A mobile terminal includes a receiving part configured to receive from a base station a reception signal including a control signal used for controlling transmission power; a comparing part configured to compare a correlation value, which is obtained from the control signal included in the reception signal and a first unique signal, with a threshold; a control part configured to control the transmission power based on a comparison result of the comparing part; and a threshold generating part configured to change the threshold according to a reception environment.

Abstract: A wireless device is configured so that an RF-IC unit calculates a difference value between IQ data received by an antenna Ant1 and IQ data received by an antenna Ant2 and transfers the difference value to a base band processing unit, instead of the IQ data received by the antenna Ant2. The wireless device is further configured so that the base band processing unit reconstructs the IQ data corresponding to the antenna Ant2, based on the difference value and the IQ data received by the antenna Ant1.

Abstract: A mobile station that receives F-DCPH symbols and CPICH symbols from a base station: (1) averages a plurality of CPICH symbols in a time sequence before a certain time of interest and estimates a channel, then uses the obtained channel estimation value and the CPICH symbol at the time of interest to calculate an interference power ISCP; (2) averages a plurality of CPICH symbols in a time sequence that include the CPICH symbol at the time of interest and estimates a channel, then uses the obtained channel estimation value and the CPICH symbol at that time of interest to calculate a reference ISCP; (3) corrects an interference power ISCP at the next time of interest using the difference between the ISCP and the reference ISCP; and (4) uses the ISCP that is obtained by the correction and a reception power RSCP of the F-DCPH symbol to calculate a signal to interference power ratio SIR of the mobile station.

Abstract: A method of transmit power control to allow a transmission side to execute transmit power control so that a signal to interference ratio (SIR) measured at a reception side is matched with a target SIR, the method includes digitizing a reception environment at the reception side, and setting the target SIR corresponding to an error rate of reception data for each of the reception environments; and changing the target SIR in accordance with the reception environment measured at the reception side or the reception environment selected at the reception side.

Abstract: An interface circuit for use in a baseband module, and receiving data from a radio frequency module intermittently, the data including a synchronization pattern followed by a payload data, the interface circuit includes: a receiver for receiving data transmitted from the radio frequency module; a timer for indicating estimated time intervals of intermittently transmitted data from the radio frequency module; and a processor for controlling detection of the synchronization pattern in portions of the received data included in a time window designated by the time intervals estimated by the timer, the processor validating detection of the synchronization pattern when at least a part of the data within the time window matches with a predetermined pattern and validating the payload data following the validated synchronization pattern.

Abstract: An UE receives a downlink data channel from a BS, calculates a reception quality value related to the downlink data channel, monitors a transmission rate of an uplink data channel to BS, and reduces the calculated reception quality value based on a result of the monitoring.

Abstract: A communication method including receiving a common channel signal, transmitting information indicating a reception state based on data included in the received signal, determining whether or not the data included in the received signal is acquirable, measuring fading speed based on the received signal in the case where the data is determined not to be acquirable, estimating whether or not the data is determined to be acquirable by re-determination based on the measurement result, and adding specified signals before and after the information indicating the reception state when the estimating results in a determination that the data is acquirable by re-determination.