Multilevel modulating method, multilevel demodulating method, and multilevel modulating and demodulating method
OwnerMichiaki Takano, Minoru Abe +5inventors
InventorsMichiaki Takano, Minoru Abe, Kuniyuki Suzuki, Jinsong Duan, Nobuo Fujihara, Nobuyasu Yamaguchi, Takuya Yamazaki
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Abstract
A bit stream of data is mapped in such a manner that a specified bit of at least one symbol becomes a dummy bit.
Claims13
A multi-level modulation method of performing, when transmitting data consisting of a plurality of symbols after multi-level modulation of the data, the multi-level modulation of the data by adding a dummy bit to the data when a number of bits of the data is less than a number of bits of a radio frame, the multi-level modulation method comprising the step of mapping a bit stream of the data such that a specified bit of at least one symbol becomes a dummy bit.
A multi-level demodulation method of performing multi-level demodulation of data consisting of a plurality of symbols by receiving the data, the multi-level demodulation method comprising the step of performing the multi-level demodulation of the data considering that a specified bit of at least one symbol is a dummy bit.
A multi-level modulation and demodulation method comprising the steps of:
- mapping, when a number of bits of data consisting of a plurality of symbols is less than a number of bits of a radio frame, a bit stream of the data such that a specified bit of at least one symbol becomes a dummy bit;
- transmitting the data after mapping by passing the data through multi-level modulation;
- and performing, when receiving the data, the multi-level demodulation of the data considering that at least one specified bit of the symbol is a dummy bit.
Dependencies are inferred from the claim text.