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US 10,256,933 B2Granted
Method and device for transmitting preamble sequence
AssigneeSamsung Electronics Co., Ltd.
InventorsChang Soon Park, Young Jun Hong, Jinesh P Nair, Joon Seong Kang, Young Soo Kim, Sujit Jos, Manoj Choudhary
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Abstract
A method and device for transmitting a preamble sequence is disclosed. A transmitter according to an embodiment may extract a first sequence for a non-coherent receiver and a second sequence for a coherent receiver, from ternary preamble sequences including elements −1, 0 and 1, and map the first sequence and the second sequence to a preamble including a plurality of bits to generate a third sequence that the non-coherent receiver and coherent receiver support.
Claims22
A transmitter comprising:
- a sequence extractor configured to extract a first sequence for a non-coherent receiver and a second sequence for a coherent receiver from a ternary preamble sequence including elements −1, 0, and 1;
- and
- a sequence generator configured to generate a third sequence supported by both the non-coherent receiver and the coherent receiver by mapping the first sequence and the second sequence to bits of a preamble,
- wherein the sequence extractor is further configured to extract the first sequence by converting the elements of the ternary preamble sequence into absolute values, so that the first sequence comprises the elements 0 and 1, for the non-coherent receiver, and to extract the second sequence by converting the element 0 of the ternary preamble sequence into the element 1, so that the second sequence comprises the elements −1 and 1, for the coherent receiver.
1 more element
A device for extracting a sequence and comprising a microprocessor, the microprocessor comprising:
- a ternary preamble sequence acquirer configured to acquire a ternary preamble sequence including elements −1, 0, and 1;
- a first sequence extractor configured to extract, from the ternary preamble sequence, a first sequence to be comprised of the elements 0 and 1, for a non-coherent receiver, by converting the elements of the ternary preamble sequence into absolute values;
- and
- a second sequence extractor configured to extract, from the ternary preamble sequences, a second sequence to be comprised of the elements −1 and 1, for a coherent receiver, by converting the element 0 of the ternary preamble sequence into the element 1.
1 more element
A device for generating a sequence and comprising a microprocessor, the microprocessor comprising:
- a first mapper configured to map a first sequence including elements 0 and 1 for a non-coherent receiver to bits of a preamble;
- and
- a second mapper configured to generate a third sequence by mapping a second sequence including the elements −1 and 1 for a coherent receiver to the first sequence that has been mapped to the bits of the preamble,
- wherein the first mapper is further configured to increase, with respect to the bits of the preamble, an index of the first sequence based on a modulo counter corresponding to a period of the first sequence and map an element of the first sequence corresponding to the index to the bits of the preamble, or
- the second mapper is further configured to increase an index of the second sequence based on a modulo counter corresponding to a period of the second sequence and map an element of the second sequence corresponding to the index to the mapped first sequence.
2 more elements
A transmitter comprising:
- a base preamble extractor configured to extract a base preamble pattern based on a preamble format of a preamble;
- a preamble sequence generator configured to generate a preamble sequence supported in both a non-coherent receiver and a coherent receiver by repeating the base preamble pattern by a number of repetitions;
- and
- a frame transmitter configured to transmit a transmission frame including a preamble field including the preamble sequence, a start frame delimiter (SFD) field, a physical layer header (PHR) field, and a physical service data unit (PSDU) field to at least one among the non-coherent receiver and the coherent receiver.
1 more element
A transmitter comprising:
- a base preamble extractor configured to extract a base preamble pattern and a number of repetitions based on a first preamble format P1 or a second preamble format P2 from a pre-stored table;
- a preamble sequence generator configured to generate a preamble sequence supported by both a non-coherent receiver and a coherent receiver by repeating the base preamble pattern by the number of repetitions;
- and
- a frame transmitter configured to transmit a transmission frame including a preamble field including the preamble sequence, a start frame delimiter (SFD) field, a physical layer header (PHR) field, and a physical service data unit (PSDU) field to at least one among the non-coherent receiver and the coherent receiver.
1 more element
Dependencies are inferred from the claim text.