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US 7,072,416 B1Granted
Transmitting/receiving device and transmitting/receiving method
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHiroaki Sudo, Yoshimasa Shirasaki
Life of this patent
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Abstract
In a modulation method such as 8PSK or a 16PSK in which a sender device expresses a symbol by using three or more bits, important information is arranged at least at only one of the first and second bits, a receiver device extracts the important information from at least one of the first and second bits of the received signal, and thereby communication control is carried out based on the important information.
Claims10
A transmission apparatus comprising:
- a converting section to which a first information sequence comprising a plurality of bits in series and a second information sequence comprising a plurality of bits in series are input through different routes and that divides each of the first information sequence and the second information sequence so as to generate a sequence of bits including at least one bit of the first information sequence and at least one bit of the second information sequence, in which the first information sequence is more important than the second information sequence;
- and
- a modulation section that modulates the sequence of bits to provide a transmission signal in such a way that each of the symbols in the transmission signal is expressed using three or more bits on an orthogonal coordinate system including an in-phase component and a quadrature component,
- wherein a bit corresponding to the first information sequence is arranged on at least the first bit of each of the symbols, and bits corresponding to the first information sequence are arranged on both the first bit and the second bit of at least one of the symbols.
1 more element
A transmission method comprising the steps of:
- inputting a first information sequence comprising a plurality of bits in series and a second information sequence comprising a plurality of bits in series through different routes,
- dividing each of the first information sequence and the second information sequence so as to generate a sequence of bits including at least one bit of the first information sequence and at least one bit of the second information sequence, in which the first information sequence is more important than the second information sequence;
- and
- modulating the sequence of bits to provide a transmission signal in such a way that each of the symbols is expressed using three or more bits on an orthogonal coordinate system including an in-phase component and a quadrature component,
- wherein a bit corresponding to the first information sequence is arranged on at least the first bit of each of the symbols, and bits corresponding to the first information sequence are arranged on both the first bit and the second bit of at least one of the symbols.
2 more elements
Dependencies are inferred from the claim text.