摘要:
To improve the frequency diversity effect and enhance reception quality characteristics in a mobile terminal apparatus even when the system bandwidth is extended, provided are a base station apparatus which assigns transmission data to each user to a single or plurality of group bands among group bands configured by dividing a system band into a plurality of bands, and transmits the transmission data assigned to the group bands on downlink, and a mobile terminal apparatus which receives the transmission data assigned to the group bands.
摘要:
Provided are a base station apparatus and an information transmitting method capable of enhancing frequency diversity effect and improving reception quality characteristics at a mobile terminal apparatus even when a system bandwidth is extended. The information transmitting method comprises: using reception quality information from the mobile terminal apparatus as a basis to select one or more than one group band from a set of group bands obtained by dividing a system band (ST302), selecting schedule information by comparing data rates of an overall system obtained after allocating transmission data to the group bands (ST309, ST310); and transmitting the transmission data scheduled in accordance with the schedule information to the mobile terminal apparatus on downlink.
摘要:
To improve the frequency diversity effect and enhance reception quality characteristics in a mobile terminal apparatus even when the system bandwidth is extended, provided are a base station apparatus which maps transmission data to each user to a single or plurality of group bands among group bands configured by dividing a system band into a plurality of bands, and transmits the mapped transmission data on downlink, and a mobile terminal apparatus which receives the transmission data mapped to the group bands and demaps the transmission data.
摘要:
To improve the frequency diversity effect and enhance reception quality characteristics in a mobile terminal apparatus even when the system bandwidth is extended, provided are a base station apparatus which maps transmission data to each user to a single or plurality of group bands among group bands configured by dividing a system band into a plurality of bands, and transmits the mapped transmission data on downlink, and a mobile terminal apparatus which receives the transmission data mapped to the group bands and demaps the transmission data.
摘要:
The base station apparatus includes: a distributed transmission determination unit (12) configured to determine a number (NDRB) of resource blocks to be used for data transmission of a distributed transmission scheme for a user apparatus at predetermined time interval; and a division number determination unit (13) configured to variably determine a division number of one resource block according to the determined number of resource blocks of the distributed transmission scheme. As a configuration example, a control information generation unit (19) may be provided for reporting the determined division number to the user apparatus.
摘要:
To suppress deterioration of retransmission efficiency and retransmit a transmission signal efficiently even when the system bandwidth is extended, provided are a base station apparatus (20) which divides, in a retransmission block dividing section (21), a transmission signal into retransmission blocks according to a retransmission block table in which the number of the retransmission blocks each of which is a retransmission unit of a transmission signal is increased corresponding to the number of transmission antennas and registered, and retransmits in downlink transmission signals associated with the divided retransmission blocks, and a mobile terminal apparatus (10) which receives the transmission signals associated with the retransmission blocks from the base station apparatus (20), and combines the retransmission blocks to restore the transmission signal prior to division.
摘要:
Provided is a radio base station apparatus capable of transmitting a control signal efficiently even in radio communications using a system band that includes a plurality of component carriers. In the radio base station apparatus, control signals of transport blocks corresponding to the plural component carriers are coded jointly and the coded control signal is assigned to one or plural component carriers to be transmitted. A mobile terminal apparatus receives data from the radio base station apparatus, separates the control signal from the received data and decodes the separated control signal thereby to obtain control information of the transport blocks of the corresponding component carriers.
摘要:
To suppress deterioration of retransmission efficiency and retransmit a transmission signal efficiently, provided are a base station apparatus which divides, in a retransmission block dividing section, a transmission signal into retransmission blocks according to a retransmission block table with which are registered the numbers of the retransmission blocks, each of the transmission blocks is a retransmission unit of a transmission signal, the numbers of the retransmission blocks are required numbers corresponding to the number of transmission antennas and the system bandwidth in case that the maximum value of the size of the retransmission block is fixed to a certain value, and retransmits in downlink transmission signals associated with the divided retransmission blocks, and a mobile terminal apparatus which receives the transmission signals associated with the retransmission blocks from the base station apparatus, and combines the retransmission blocks to restore the transmission signal prior to division.
摘要:
Provided is a radio base station apparatus capable of transmitting a control signal efficiently even in radio communications using a system band that includes a plurality of component carriers. In the radio base station apparatus, control signals of transport blocks corresponding to the plural component carriers are coded jointly and the coded control signal is assigned to one or plural component carriers to be transmitted. A mobile terminal apparatus receives data from the radio base station apparatus, separates the control signal from the received data and decodes the separated control signal thereby to obtain control information of the transport blocks of the corresponding component carriers.
摘要:
The base station apparatus includes: a distributed transmission determination unit (12) configured to determine a number (NDRB) of resource blocks to be used for data transmission of a distributed transmission scheme for a user apparatus at predetermined time interval; and a division number determination unit (13) configured to variably determine a division number of one resource block according to the determined number of resource blocks of the distributed transmission scheme. As a configuration example, a control information generation unit (19) may be provided for reporting the determined division number to the user apparatus.