Abstract: A radio receiving apparatus for receiving the variable-length RLC PDU data in an RLC layer includes the buffer memory sectioned into a plurality of areas having a predetermined maximum data length of the RLC PDU data. By referring to a sequence number SN included in each received RLC PDU data, the radio receiving apparatus stores the RLC PDU data having an identical sequence number SN into an identical area, and assembles an RLC SDU data on a basis of the RLC PDU data stored in each area.

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 radio receiving apparatus for receiving the variable-length RLC PDU data in an RLC layer includes the buffer memory sectioned into a plurality of areas having a predetermined maximum data length of the RLC PDU data. By referring to a sequence number SN included in each received RLC PDU data, the radio receiving apparatus stores the RLC PDU data having an identical sequence number SN into an identical area, and assembles an RLC SDU data on a basis of the RLC PDU data stored in each area.

Abstract: A radio receiving apparatus for receiving the variable-length RLC PDU data in an RLC layer includes the buffer memory sectioned into a plurality of areas having a predetermined maximum data length of the RLC PDU data. By referring to a sequence number SN included in each received RLC PDU data, the radio receiving apparatus stores the RLC PDU data having an identical sequence number SN into an identical area, and assembles an RLC SDU data on a basis of the RLC PDU data stored in each area.

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: 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 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 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: 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: 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 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; and an allocation unit that allocates to each of a plurality of pieces of 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 each piece of data and provided in one of the data transmission units among the plurality of data transmission units. The apparatus also includes a multiplexing unit that multiplexes the 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 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: 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: 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: 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 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 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.