Apparatus and method for transmission/reception
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1. A transmission apparatus comprising:
 a converting section that has input thereto through different routes a first information sequence comprising a plurality of bits and a second information sequence comprising a plurality of bits and that generates a sequence of bits including at least one bit of the first information sequence and at least one bit of the second information sequence; and
a modulation section that modulates the sequence of bits into symbols such that each of the symbols is expressed using three or more bits, wherein;
the first bits and the second bits of the symbols comprise bits of a set comprising bits corresponding to the first information sequence and bits corresponding to the second information sequence,in each symbol, the bits corresponding to the first information sequence have a relation to the bits corresponding to the second information sequence,the more lower hits than the second bits of the symbols are comprised of bits corresponding to the second information sequence, anda bit corresponding to the second information sequence is arranged on the second bit of at least one of the symbols.
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Abstract
In a modulation method such as 8 PSK or a 16 PSK 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.
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18 Claims

1. A transmission apparatus comprising:

a converting section that has input thereto through different routes a first information sequence comprising a plurality of bits and a second information sequence comprising a plurality of bits and that generates a sequence of bits including at least one bit of the first information sequence and at least one bit of the second information sequence; and a modulation section that modulates the sequence of bits into symbols such that each of the symbols is expressed using three or more bits, wherein; the first bits and the second bits of the symbols comprise bits of a set comprising bits corresponding to the first information sequence and bits corresponding to the second information sequence, in each symbol, the bits corresponding to the first information sequence have a relation to the bits corresponding to the second information sequence, the more lower hits than the second bits of the symbols are comprised of bits corresponding to the second information sequence, and a bit corresponding to the second information sequence is arranged on the second bit of at least one of the symbols.  View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)


10. A transmission method of a transmission apparatus including a converting section and a modulation section, the method comprising:

inputting a first information sequence comprising a plurality of bits and a second information sequence comprising a plurality of bits through different routes in the converting section; generating 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 the converting section; and modulating the sequence of bits into symbols such that each of the symbols is expressed using three or more bits in the modulation section, wherein; the first bits and the second bits of the symbols comprise bits of a set comprising bits corresponding to the first information sequence and bits corresponding to the second information sequence, in each symbol, the bits corresponding to the first information sequence have a relation to the bits corresponding to the second information sequence, the more lower bits than the second bits of the symbols are comprised of bits corresponding to the second information sequence, and a bit corresponding to the second information sequence is arranged on the second bit of at least one of the symbols.  View Dependent Claims (11, 12, 13, 14)


15. A reception apparatus comprising:

a receiving section that receives a sequence of bits including at least one bit of a first information sequence and at least one bit of a second information sequence, the sequence of bits being modulated into symbols such that each of the symbols is expressed using three or more bits, wherein the first bits and the second bits of the symbols comprise bits of a set comprising bits corresponding to the first information sequence and bits corresponding to the second information sequence, in each symbol, the bits corresponding to the first information sequence have a relation to the bits corresponding to the second information sequence, the more lower bits than the second bits of the symbols are comprised of bits corresponding to the second information sequence, and a bit corresponding to the second information sequence is arranged on the second bit of at least one of the symbols; and a demodulating section that demodulates the sequence of bits, wherein the demodulating section extracts bits corresponding to the first information sequence from at least one of the first bits and the second bits of the symbols and extracts bits corresponding to the second information sequence from both of (i) at least one of the first bits and the second bits and (ii) the more lower bits than the second bits of the symbols.  View Dependent Claims (16, 17, 18)

Specification