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US 12,512,929 B2Granted
Transmission methods of probabilistic shaping modulation in wireless communications
AssigneeMediatek Inc.
InventorsShengquan Hu, Jianhan Liu, Thomas Edward Pare, Jr.
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Abstract
Techniques pertaining to transmission methods of probabilistic shaping (PS) modulation in wireless communications are described. An apparatus (e.g., station (STA)) processes each subblock of a plurality of subblocks of a data unit by padding each subblock after scrambling and PS mapping each subblock to result in each subblock having a fixed length before further processing including encoding and modulation. The apparatus then transmits the plurality of processed subblocks.
Claims6
A method, comprising:
- processing, by a processor of an apparatus, each subblock of a plurality of subblocks of a data unit by:
- scrambling, by a scrambler of the processor, and probabilistic shaping (PS) mapping, by a PS mapper of the processor, each subblock of the plurality of subblocks to provide a plurality of scrambled and PS mapped subblocks;
- padding, by a padding circuit of the processor, each of the plurality of scrambled and PS mapped subblocks to result in each of the plurality of scrambled and PS mapped subblocks having a fixed length to provide a plurality of scrambled, PS mapped and padded subblocks;
- and
- encoding, by an encoder of the processor, and modulating, by a modulator of the processor, the plurality of scrambled, PS mapped and padded subblocks to provide a plurality of processed subblocks;
- and
- transmitting, by the processor, the plurality of processed subblocks, wherein a length of each subblock after the padding is fixed at either:
- K*(1+α) bits, or
- X bits;
- wherein a length of each subblock before the PS mapping is fixed at K bits,
- wherein K is an integer multiple of 32,
- wherein α is a configured or predefined parameter representing a percentage of an increase in length of the data unit after the PS mapping relative to a length of the data unit prior to the processing, and
- wherein X is a fixed or predefined value.
10 more elements
A method, comprising:
- receiving, by a processor of an apparatus, a plurality of subblocks of a data unit comprising a plurality of bits;
- and
- processing, by the processor, each subblock of the plurality of subblocks by:
- performing demodulation, by a demodulator of the processor, and decoding, by a decoder of the processor, on each subblock of the plurality of subblocks to provide a plurality of demodulated and decoded subblocks;
- and
- de-mapping each subblock of the plurality of demodulated and decoded subblocks using a probabilistic shaping (PS) de-mapper of the processor to provide a plurality of processed subblocks,
- wherein, for every second fixed number of input bits of each subblock of the plurality of demodulated and decoded subblocks, the PS de-mapper outputs a first fixed number of output bits of each subblock of the plurality of processed subblocks,
- wherein a length of each subblock before the PS de-mapping is fixed at either:
- K*(1+α) bits;
- or
- X bits,
- wherein a length of each subblock after the PS de-mapping is fixed at K bits,
- wherein K denotes the first fixed number of output bits of the PS de-mapper and is an integer multiple of 32,
- wherein α is a configured or predefined parameter representing a percentage of an increase in length of the data unit after the PS mapping relative to a length of the data unit prior to the processing,
- wherein K*(1+α) denotes the second fixed number of input bits to the PS de-mapper, and
- wherein X denotes the second fixed number of input bits to the PS de-mapper and is a fixed or predefined value.
13 more elements
Dependencies are inferred from the claim text.