Communication apparatus and communication method
View Patent ↗A communication apparatus performs a communication using a communication frame corresponding to a predetermined frequency bandwidth including a first frequency bandwidth and a second frequency bandwidth. The communication frame includes a first communication channel that corresponds to the first frequency bandwidth and that has a plurality of subcarriers and a second communication channel that corresponds to the second frequency bandwidth and that has a plurality of subcarriers. The communication apparatus sets a first phase vector with respect to the first communication channel, sets a second phase vector with respect to the second communication channel, generates communication data by adjusting a phase of symbol data using the first phase vector and the second phase vector, and transmits the communication data using the communication frame.
1. A communication apparatus that performs communication using a communication frame corresponding to a frequency bandwidth including a first frequency bandwidth and a second frequency bandwidth, the communication apparatus comprising:
a processor; and
communication circuitry,
wherein the communication frame includes a first communication channel that corresponds to the first frequency bandwidth and that includes a plurality of subcarriers, and a second communication channel that corresponds to the second frequency bandwidth and that includes a plurality of subcarriers,
the processor sets a phase vector, in which a first Peak to Average Power Ratio (PAPR) relevant to reception in the first communication channel is equal to or less than a determined value, as a first phase vector for the first communication channel, and sets a phase vector, in which a second PAPR relevant to reception in the second communication channel is equal to or less than the determined value, as a second phase vector for the second communication channel, wherein the first and second phase vectors are different from each other and the first and second phase vectors satisfy that a third PAPR relevant to reception in the communication frame including the first and second communication channels is equal to or less than the determined value,
the processor generates communication data by adjusting a phase of symbol data using the first phase vector and the second phase vector, and
the communication circuitry transmits the communication data using the communication frame.
2. The communication apparatus according to claim 1 ,
wherein data which is transmitted in the first communication channel and the second communication channel includes data of a plurality of preambles having an identical value.
3. The communication apparatus according to claim 1 ,
wherein the communication circuitry performs communication using the communication frame through a power line.
4. A communication apparatus that performs communication using a communication frame corresponding to a frequency bandwidth including a first frequency bandwidth and a second frequency bandwidth, the communication apparatus comprising:
a processor; and
communication circuitry,
wherein the communication frame includes a first communication channel that corresponds to the first frequency bandwidth and that includes a plurality of subcarriers, and a second communication channel that corresponds to the second frequency bandwidth and that includes a plurality of subcarriers,
the processor sets a first phase vector for the first communication channel, sets a second phase vector different from the first phase vector for the second communication channel, and generates communication data by adjusting a phase of symbol data using the first phase vector and the second phase vector,
the communication circuitry transmits the communication data using the communication frame, and
the processor changes the first phase vector and the second phase vector when the number of preamble data transmitted in the communication frame changes.
5. The communication apparatus according to claim 4 ,
wherein the communication circuitry performs communication using the communication frame through a power line.
6. The communication apparatus according to claim 4 ,
wherein data which is transmitted in the first communication channel and the second communication channel includes data of a plurality of preambles having an identical value.
7. A communication method of performing communication using a communication frame corresponding to a frequency bandwidth including a first frequency bandwidth and a second frequency bandwidth,
the communication frame including a first communication channel that corresponds to the first frequency bandwidth and that includes a plurality of subcarriers, and a second communication channel that corresponds to the second frequency bandwidth and that includes a plurality of subcarriers,
the communication method comprising:
setting a phase vector, in which a first Peak to Average Power Ratio (PAPR) relevant to reception in the first communication channel is equal to or less than a determined value, as a first phase vector for the first communication channel,
setting a phase vector, in which a second PAPR relevant to reception in the second communication channel is equal to or less than the determined value, as a second phase vector for the second communication channel, wherein the first and second phase vectors are different from each other and the first and second phase vectors satisfy that a third PAPR relevant to reception in the communication frame including the first and second communication channels is equal to or less than the determined value,
generating communication data by adjusting a phase of symbol data using the first phase vector and the second phase vector, and
transmitting the communication data using the communication frame.
8. The communication method according to claim 7 ,
wherein data which is transmitted in the first communication channel and the second communication channel includes data of a plurality of preambles having an identical value.
9. The communication method according to claim 7 ,
wherein communication using the communication frame is performed through a power line.
10. A communication method of performing communication using a communication frame corresponding to a frequency bandwidth including a first frequency bandwidth and a second frequency bandwidth,
the communication frame including a first communication channel that corresponds to the first frequency bandwidth and that includes a plurality of subcarriers, and a second communication channel that corresponds to the second frequency bandwidth and that includes a plurality of subcarriers,
the communication method comprising:
setting a first phase vector for the first communication channel;
setting a second phase vector different from the first phase vector for the second communication channel;
generating communication data by adjusting a phase of symbol data using the first phase vector and the second phase vector; and
transmitting the communication data using the communication frame,
wherein the first phase vector and the second phase vector are changed when the number of preamble data transmitted in the communication frame changes.
11. The communication method according to claim 10 ,
wherein communication using the communication frame is performed through a power line.
12. The communication method according to claim 10 ,
wherein data which is transmitted in the first communication channel and the second communication channel includes data of a plurality of preambles having an identical value.