Abstract: A transmission controlling method for a wireless communication system wherein a plurality of data blocks can be transmitted from a sender apparatus having a plurality of sending antennas to a receiver apparatus, the transmission controlling method includes on the sender apparatus, sending process information which is not competitive between data blocks to the receiver apparatus with a control channel; and sending the data block to the receiver apparatus; and on the receiver apparatus, receiving the data block and the process information from the sender apparatus.

Abstract: A method for retransmission data for a data transmission system in which a receiver transmits, when receiving data, a transmittal confirmation signal indicating whether the data is correctly received or not, and a transmitter refers to the transmittal confirmation signal and retransmits, when confirming that the data is not correctly received in the receiver, the data to the receiver, the method includes: at the transmitter, holding the transmitted data; keeping the holding of the transmitted data even after the transmitter confirms that the data is correctly received in the receiver by referring to the transmittal confirmation signal corresponding to the data and retransmitting, to the receiver, the data held therein in response to a request for retransmission of the data from the receiver.

Abstract: A measuring unit measures the line quality with an eNB. A receiving unit receives line quality information transmitted from an UE. When the line quality measured by the measuring unit is different from line quality contained in the line quality information received by the receiving unit, a transmitting unit changes, the received target data to data for a layer that is different from the physical layer, and transmits the changed data to the UE.

Abstract: A wireless communication apparatus that uses a communication protocol to transmit and receive data with a data check bit, including a received data determining section that performs a data check for received data by using the data check bit to determine whether the data is error; a received result transmitting section that, when determined to be error, discards the data and transmits a retransmission request to other wireless communication apparatus of the transmitting origin, whereas determined to be not error, transmits a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin; and a retransmission asking section that determines whether a format of the data is incorrect or normal, and when determined to be normal, passes the data to predetermined processing, whereas when determined to be incorrect, discards the data and asks the received result transmitting section to request retransmission of the data.

Abstract: In a wireless communication system, a sender apparatus sends a data block, for each of a plurality of stream data, with data block identification information, which does not conflict between stream data, annexed, and a reception apparatus performs a re-sending synthesis process for a data block received already and a re-sending data block to which the same data block identification information is individually annexed based on the data block identification information annexed to the received data block. Consequently, also in a case wherein the number of transmission streams between the sender apparatus and the reception apparatus is varied (reduced), the matching property of the data block which is a re-sending synthesis target can be maintained and communication can be continued normally.

Abstract: In this invention a wireless apparatus for conducting receiving process of data using a control signal which is started in transmission prior to transmission of such data is characterized in comprising a detecting unit for detecting that the undefined data is included in a first part transmitted prior to a second part as a part of the control signal is used for solving problem.

Abstract: In response to receiving second transmission timing adjustment information during connection processing while the user equipment is performing the connection processing to the base station based on first transmission timing adjustment information, the first transmission timing adjustment information is applied to transmission timing adjustment for transmission processing until a valid term of the first transmission timing adjustment information; and the second transmission timing adjustment information is applied to transmission timing adjustment for transmission processing after the valid term of the first transmission timing adjustment information.

Abstract: An mobile station implements data transport which allows for handover. The mobile station transmits a second datum in response to a first datum received from a wireless base station, the mobile station being characterized in that it comprises: a detection unit which detects that handover is to be performed; and a control unit which provides control such that, in cases where the detection has been made, the changeover timing of the transmission destination for the second datum is made later than the changeover timing of the reception channel for the first datum.

Abstract: A timing adjustment method in a mobile communication system having a user equipment and a base station, that performs transmission processing based on transmission timing adjustment information in the user equipment and allocates a plurality of parameters related to a physical uplink control channel (PUCCH) resource used for transmission processing, between the user equipment and the base station. Additionally, if a valid term of first transmission timing adjustment information expires before transmission processing of a signal including identification information of the user equipment is performed during connection processing while the user equipment is performing the connection processing to the base station based on the first transmission timing adjustment information, aborting the connection processing and releasing at least one of the allocated plurality of parameters related to the PUCCH resource.

Abstract: To alleviate processing load of a communication apparatus (mobile station) for data transmission using the shared channels. A radio communication apparatus for receiving data via the shared channels, comprises a receiving unit for intermittent reception to determine whether the data received via the shared channels is transmitted to its own station or not in the first operational mode and a transmitting unit for intermittent transmission of information which influences the transmission format of the data a predetermined time before the intermittent reception timing of the receiving unit in the first mode.

Abstract: A communication apparatus includes an acquisition unit that acquires a size of free space provided in each of a plurality of data transmission units of a first layer; an allocation unit that allocates to data of a second layer a contiguous sequence of free space from among the free space whose size is acquired by the acquisition unit, the contiguous sequence of free space being equal in size to the data of the second layer and provided in one data transmission unit of the first layer; and a multiplexing unit that multiplexes a plurality of pieces of data of the second layer into the plurality of data transmission units of the first layer according to the allocation of the free space by the allocation unit.

Abstract: A data retransmission method for retransmitting a data using a wireless communication, including: receiving data transmitted from a transmitting apparatus; determining whether the received data is correct or not; transmitting data including information indicating that the received data is received correctly to the transmitting apparatus upon being determined the received data is correct, and transmitting data including information indicating that the received data is not received correctly to the transmitting apparatus upon being determined the received data is not correct; measuring an elapsed time from transmission of the data including information indicating that the received data is not received correctly; and monitoring whether to receive data corresponding to the received data from the transmitting apparatus before the elapsed time reaches a predetermined time.

Abstract: A method for random access in a wireless communication system communicating between a base station and a wireless terminal, the method consists of: at the wireless terminal, selecting first information used for first random access or second information used for second random access and performing a data communication with the base station during or after the completion of random access using selected information.

Abstract: A transmission controlling method for a wireless communication system wherein a plurality of data blocks can be transmitted from a sender apparatus having a plurality of sending antennas to a receiver apparatus, the transmission controlling method including on the sender apparatus, sending process information which prevent plurality of data blocks from competing to the receiver apparatus with a control channel; and on the receiver apparatus, combining, based on the process information, the data block received already and a re-sent data block.

Abstract: In the event of detecting first information used for first random access and second information used for second random access, the second information being received from the base station unit, a wireless terminal selects one between the first information and the second information. Thereby, either one of the random accesses can be selectively performed, efficiently using resources such as signatures used for random access.

Abstract: Instead of adding control information that should be passed on to two or more RLC entities or two or more PDCP entities on the counterpart side to data respectively in two or more RLC entities or two or more PDCP entities at the sending end, control information is added in MAC entity and then distributed to two or more RLC entities in MAC entity on the counterpart side.

Abstract: A wireless communication system including a base station and a wireless terminal, the method includes at the wireless terminal, selecting first information used for first random access or second information used for second random access; and transmitting, during or after the completion of random access using selected information, third information to be transmitted to the base station during random access using information which is not selected, the third information being used by the wireless terminal until the random access using information which is not selected is finished.

Abstract: A control method in a mobile communication system, that includes configuring a timer corresponding to packet data for discarding the packet data according to a value of the timer; maintaining the value of the timer corresponding to the packet data when a handover is performed without restarting or resetting the value of the timer; and discarding the corresponding packet data when the maintained value of the timer reaches a given value.

Abstract: In a wireless communication system, a wireless base station, if rejecting a connection to a wireless terminal that makes a connection request in accordance with a first connection processing, controls to adopt a second connection processing different from the first connection processing in response to a subsequent connection request by the wireless terminal.

Abstract: An error correcting code decoding device includes a first decoding circuit, a word-length reduction circuit configured to reduce bit lengths of a first external values corresponding to a plurality of bits obtained after decoding process performed by the first decoding circuit a first predetermined number of times and to reduce bit lengths of words included in word string, and a second decoding circuit configured to decode the bit string by executing a decoding process a second predetermined number of times for calculating second external values and posterior values of the bits included in the bit string in accordance with the word string including the words having the reduced bit lengths using the first external values having the reduced bit lengths as second prior probabilities that corresponding bits among the plurality of bits are the predetermined value.