JP2008035542A5

JP2008035542A5 -

Info

Publication number: JP2008035542A5
Application number: JP2007235634A
Authority: JP
Filing date: 2007-09-11
Publication date: 2008-04-24
Anticipated expiration: 2025-07-06

Claims

Encoding means for performing block encoding processing on transmission data composed of a plurality of bits to form block encoded data composed of a plurality of bits;
One symbol, a plurality of said to consist collects bits belonging to one of the block coded data, rearranging means for rearranging the bits belonging to the block coded data,
Modulation means for outputting a baseband signal corresponding to the symbol from the rearranged block encoded data;
Transmitting apparatus characterized by comprising a transmitting means for transmitting a modulated signal based on the baseband signal.

The modulation means can use a plurality of modulation schemes,
The rearrangement unit is configured so that, regardless of which modulation scheme is used, the two bits arbitrarily extracted from a plurality of bits constituting the symbol are bits belonging to different block coded data. Rearrange bits belonging to encoded data
The transmission apparatus according to claim 1, wherein:

The rearrangement means rearranges bits belonging to a plurality of the block encoded data that are sequentially input from the encoding means to the rearrangement means.
The transmission apparatus according to claim 2, wherein:

The transmission apparatus according to any one of claims 1 to 3, wherein the modulation means can use a first modulation scheme and a second modulation scheme.

The transmission apparatus according to claim 4 , wherein the first modulation scheme is QPSK and the second modulation scheme is 16QAM.

The modulation means is adaptively variable in the number of modulation levels,
The permutation means is higher modulation level of the modulation means is increased, so bit 1 symbol is included in the more blocks encoded data is configured gathered, that permuting the block encoded data transmission device according to any one of claims 1 to 5, wherein.

The transmission apparatus according to any one of claims 1 to 6 , wherein the modulation signal is a signal formed using an OFDM system.

Block encoding processing is performed on transmission data composed of a plurality of bits to form block encoded data composed of a plurality of bits,
Rearranging the bits belonging to the block encoded data so that one symbol is constituted by collecting bits belonging to any of the plurality of block encoded data;
Forming a baseband signal corresponding to the symbol from the rearranged block encoded data;
Transmit a modulated signal based on the baseband signal
Transmission method.

Multiple modulation schemes can be used,
Regardless of which modulation method is used, two bits arbitrarily extracted from a plurality of bits constituting the symbol belong to the block coded data so that they belong to different block coded data. Reorder bits
The transmission method according to claim 8.

The bit rearrangement is a rearrangement of bits belonging to a plurality of the block-encoded data that are continuously input in time.
The transmission method according to claim 9.

The first modulation scheme and the second modulation scheme can be used
The transmission method according to any one of claims 8 to 10, wherein:

The first modulation scheme is QPSK and the second modulation scheme is 16QAM.
The transmission method according to claim 11.

When forming the symbol, the modulation multi-value number is adaptively variable,
When the bits belonging to the block coded data are rearranged, the block code is configured such that as the modulation multi-value number increases, one symbol includes a larger number of bits included in the block coded data. The digitized data
The transmission method according to any one of claims 8 to 12, wherein

The modulation signal is a signal formed using the OFDM method.
The transmission method according to claim 8, wherein: