Abstract: A transmission apparatus including: a layer multiplexing unit configured to assign, to a radio resource which is divided based on a time, a frequency and a layer, a bit sequence which constitutes at least one information source to be transmitted, in accordance with a communication state and a priority level of the information source; and a layer coding unit configured to perform a layer coding processing for the bit sequence assigned to the radio resource. The layer multiplexing unit performs the assignment so that a length of each bit sequence assigned to each radio resource becomes equivalent.

Abstract: The object of the present invention is to achieve reduction of interference between cells and improvement of maximum throughput so as to improve spectrum efficiency.

Abstract: The wireless base station 10 includes a multiplexing units 13 generating user data; a channel assignment control unit 14 for selecting subcarrier groups from a plurality of subcarriers on two carriers, forming two wireless frames including subchannels generated from the subcarrier groups, and time-division multiplexes and sets the user data and control data to the two wireless frames; and a transmitting and receiving unit 16 transmitting a wireless signal including the wireless frames, wherein the channel assignment control unit 14 divides all of the subchannels in the two wireless frames into areas of destination sectors, stores the control data only in the corresponding area, and stores the user data in all of the areas in the two wireless frames.

Abstract: The object of the present invention is to achieve reduction of interference between cells and improvement of maximum throughput so as to improve spectrum efficiency.

Abstract: The present invention achieves a flexible and efficient use of frequency bands in a radio communication system in which all or part of frequency bands available in a cell is allocated respectively as frequency bands available in each of a plurality of regions in the cell. An allocation control unit included in a radio communication apparatus according to the present invention is configured to allocate all the frequency band f1 to f6 available in the cell, as a frequency band available in an inner region, to allocate specific frequency bands from among all the all the frequency band f1 to f6 available in the cell, as a frequency band available in an outer region, and to notify the specific frequency band available in the outer region in field B1 to B3 corresponding to the outer region in a data frame, by using a bit map pattern.

Abstract: A transmission apparatus including: a layer multiplexing unit configured to assign, to a radio resource which is divided based on a time, a frequency and a layer, a bit sequence which constitutes at least one information source to be transmitted, in accordance with a communication state and a priority level of the information source; and a layer coding unit configured to perform a layer coding processing for the bit sequence assigned to the radio resource. The layer multiplexing unit performs the assignment so that a length of each bit sequence assigned to each radio resource becomes equivalent.