Device, system, and method for efficiently determining delimiting position
A radio communication method includes: by a radio terminal device, generating position indicating signals that are different between blocks of radio resources each of which is an allocation unit of data; mapping the position indicating signals generated and transmission data to the blocks; and transmitting a signal including the blocks; by a base station device, receiving the signal including the blocks of the radio resources; evaluating continuity of the blocks, based on the position indicating signals mapped to the blocks; and demodulating data mapped to the blocks for each radio terminal device, based on an evaluation result.
1. A radio terminal device comprising:
a generation circuit configured to generate an indicating signal, the indicating signal indicating a position of data, which is a cyclical extension of a signal sequence with a sequence size, the sequence size being different from a size of each block of radio resources each of which is an allocation unit of the data;
a mapping circuit configured to map the indicating signal generated to a first symbol and to map transmission data to one or more second symbols that are different from the first symbol; and
a transmitter configured to transmit the transmission data on the one or more second symbols and the indicating signal on the first symbol.
2. The radio terminal device according to claim 1 , wherein the generation circuit is configured to associate the indicating signal to a code.
3. The radio terminal device according to claim 2 , wherein the generation circuit is configured to associate different indicating signals to each of a plurality of codes.
4. The radio terminal device according to claim 2 , wherein the generation circuit is configured to associate same indicating signals with each of a plurality of codes.
5. A radio communication method used in the radio terminal device of claim 1 , the method comprising:
generating an indicating signal, the indicating signal indicating a position of data, which is a cyclical extension of a signal sequence with a sequence size, the sequence size being different from size of each block of radio resources each of which is an allocation unit of the data;
mapping the indicating signal generated to first symbol, and mapping transmission data to one or more second symbols that are different from the first symbol; and
transmitting the transmission data on the one or more second symbols and the indicating signal on the first symbol.
6. A base station device comprising:
a receiver configured to receive an indicating signal on a first symbol and transmission data on one or more second symbols that are different from the first symbol, the indicating signal indicating a position of data, which is a cyclical extension of a signal sequence with a sequence size, the sequence size being different from a size of each block of radio resources; and
a demodulation circuit configured to demodulate the transmission data, included in continuous blocks, within each block in accordance with the indication signal.
7. The base station device according to claim 6 , wherein the receiver is configured to receive the indicating signal associated with a code.
8. The base station device according to claim 7 , wherein the receiver is configured to receive different indicating signals per each of a plurality of codes.
9. The base station device according to claim 7 , wherein the receiver is configured to receive same indicating signals associated with each of a plurality of codes.
10. A radio communication system including a radio terminal device and a base station device, wherein
the radio terminal device comprises:
a generation circuit configured to generate an indicating signal, the indicating signal indicating a position of data, which is a cyclical extension of a signal sequence with a sequence size, the sequence size being different from a size of each block of radio resources each of which is an allocation unit of the data;
a mapping circuit configured to map the indicating signal generated to a first symbol and to map transmission data to one or more second symbols that are different from the first symbol; and
a transmitter configured to transmit the transmission data on the one or more second symbols the indicating signal on the first symbol, and the base station device comprises:
a receiver configured to receive the indicating signal including each block; and
a demodulation circuit configured to demodulate the transmission data, included in continuous blocks, within each block in accordance with the indication signal.
11. A radio communication method used in a radio communication system including a radio terminal device and a base station device, the method comprising:
by the radio terminal device,
generating an indicating signal, the indicating signal indicating a position of data, which is a cyclical extension of a signal sequence with a sequence size, the sequence size being different from size of each block of radio resources each of which is an allocation unit of the data;
mapping the indicating signal generated to first symbol, and mapping transmission data to one or more second symbols that are different from the first symbol; and
transmitting the transmission data on the one or more second symbols and the indicating signal on the first symbol;
by the base station device,
receiving the indicating signal including each block; and
demodulating the transmission data, included in continuous blocks, within each block in accordance with the indication signal.