Apparatus and method for extended range communication
AssigneeSamsung Electronics Co., Ltd.
InventorsMyeongjin Kim, Jinmin Kim, Eunsung Jeon, Wookbong Lee, Chulho Chung, Jonghun Han
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Abstract
A second apparatus for wireless communication includes: a transceiver; and a processing circuit configured to receive, from a first apparatus via the transceiver, a physical layer protocol data unit (PPDU) including a first signal field having a fixed length and a second signal field having a variable length. The second signal field includes an orthogonal frequency-division multiplexing (OFDM) symbol block including at least one OFDM symbol, and one or more repetitions of the OFDM symbol block.
Claims18
A wireless communication method performed by a first apparatus, the wireless communication method comprising:
- generating a first signal field having a fixed length;
- generating a second signal field having a variable length;
- and
- transmitting a physical layer protocol data unit (PPDU) including the first signal field and the second signal field to a second apparatus,
- wherein said generating the second signal field comprises:
- generating a bitstream;
- generating an encoded block by encoding the bitstream;
- generating an encoded block sequence by repeating the encoded block;
- generating a modulated block by modulating the encoded block sequence;
- and
- generating the second signal field to include one or more orthogonal frequency-division multiplexing (OFDM) symbols from the modulated block,
- wherein the first signal field includes version-independent fields and version-dependent fields, and
- wherein the second signal field includes a common field and a user specific field.
A wireless communication method performed by a second apparatus, the wireless communication method comprising:
- receiving, from a first apparatus, a physical layer protocol data unit (PPDU) including a first signal field having a fixed length and a second signal field having a variable length;
- identifying first information included in the first signal field, based on a pattern repeated in the first signal field;
- identifying second information included in the second signal field, based on a pattern repeated in the second signal field;
- and
- processing the PPDU, based on the first information and the second information,
- wherein said identifying the second information comprises:
- recovering a modulated block from at least one orthogonal frequency-division multiplexing (OFDM) symbol of the second signal field;
- and
- identifying at least one repeated encoded block by demodulating the modulated block,
- wherein the first signal field includes version-independent fields and version-dependent fields, and
- wherein the second signal field includes a common field and a user specific field.
A second apparatus for wireless communication, the second apparatus comprising:
- a transceiver;
- and
- a processing circuit configured to receive, from a first apparatus via the transceiver, a physical layer protocol data unit (PPDU) including a first signal field having a fixed length and a second signal field having a variable length,
- wherein the second signal field includes at least one orthogonal frequency-division multiplexing (OFDM) symbol representing a block sequence including an encoded block and one or more repetitions of the encoded block,
- wherein the first signal field includes version-independent fields and version-dependent fields, and
- wherein the second signal field includes a common field and a user specific field.
Dependencies are inferred from the claim text.