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US 12,647,205 B2Granted
Method and device for applying optimized phase rotation to broadband in wireless LAN system
OwnerEunsung Park, Jinyoung Chun +2inventors
InventorsEunsung Park, Jinyoung Chun, Jinsoo Choi, Dongguk Lim
Life of this patent
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Abstract
A method and a device for receiving a PPDU in a wireless LAN system are presented. Specifically, a receiving STA receives a PPDU from a transmitting STA through a broadband and decodes the PPDU. The PPDU includes a legacy preamble and first and second signal fields. The legacy preamble and the first and second signal fields are generated on the basis of a first phase rotation value. When the broadband is a 320 MHz band, the first phase rotation value is [1 1 1 −1 1 1 1 −1 −1 −1 −1 1 −1 −1 1 −1].
Claims11
A method in a wireless local area network (WLAN) system, the method comprising:
- receiving, by a receiving station (STA), a Physical Protocol Data Unit (PPDU) from a transmitting STA;
- and
- decoding, by the receiving STA, the PPDU,
- wherein the PPDU includes a legacy preamble, first and second signal fields,
- wherein the legacy preamble and the first and second signal fields are generated based on a first phase rotation value,
- wherein based on the PPDU being transmitted through a 320 MHz band, the first phase rotation value is [1 1 1 −1 1 1 1 −1 −1 −1 −1 1 −1 −1 1 −1],
- wherein the first phase rotation value is obtained based on a first preamble puncturing pattern of the 320 MHz band,
- wherein the first preamble puncturing pattern includes a pattern in which a 40 MHz or 80 MHz band is punctured in the 320 MHz band,
- wherein the 320 MHz band includes first to fourth 80 MHz bands,
- wherein the first preamble puncturing pattern includes first to fourteenth patterns,
- wherein the first pattern is a pattern in which a 40 MHz band within the first 80 MHz band in the 320 MHz band is punctured,
- wherein the second pattern is a pattern in which a 40 MHz band within the second 80 MHz band in the 320 MHz band is punctured,
- wherein the third pattern is a pattern in which a 40 MHz band within the third 80 MHz band in the 320 MHz band is punctured,
- wherein the fourth pattern is a pattern in which a 40 MHz band within the fourth 80 MHz band in the 320 MHz band is punctured,
- wherein for the first to fourth patterns, the 40 MHz band punctured within the first to fourth 80 MHz bands is one of 40 MHz bands at both ends of each 80 MHz band, is not a middle 40 MHz band of the each 80 MHz band,
- wherein the fifth pattern is a pattern in which the first 80 MHz band is punctured in the 320 MHz band,
- wherein the sixth pattern is a pattern in which the second 80 MHz band is punctured in the 320 MHz band,
- wherein the seventh pattern is a pattern in which the third 80 MHz band is punctured in the 320 MHz band,
- wherein the eighth pattern is a pattern in which the fourth 80 MHz band is punctured in the 320 MHz band, and
- wherein for the fifth to eighth patterns, the first to fourth 80 MHz bands are punctured, and two or more of the 80 MHz bands among the first to fourth 80 MHz bands are not partially punctured in the 320 MHz band.
17 more elements
A receiving station (STA) in a wireless local area network (WLAN) system, the receiving STA comprising:
- a memory;
- a transceiver;
- and
- a processor being operatively connected to the memory and the transceiver,
- wherein the processor is configured to:
- receive a Physical Protocol Data Unit (PPDU) from a transmitting station (STA), and
- decode the PPDU,
- wherein the PPDU includes a legacy preamble, first and second signal fields,
- wherein the legacy preamble and the first and second signal fields are generated based on a first phase rotation value,
- wherein based on the PPDU being transmitted through a 320 MHz band, the first phase rotation value is [1 1 1 −1 1 1 1 −1 −1 −1 −1 1 −1 −1 1 −1],
- wherein the first phase rotation value is obtained based on a first preamble puncturing pattern of the 320 MHz band,
- wherein the first preamble puncturing pattern includes a pattern in which a 40 MHz or 80 MHz band is punctured in the 320 MHz band,
- wherein the 320 MHz band includes first to fourth 80 MHz bands,
- wherein the first preamble puncturing pattern includes first to fourteenth patterns,
- wherein the first pattern is a pattern in which a 40 MHz band within the first 80 MHz band in the 320 MHz band is punctured,
- wherein the second pattern is a pattern in which a 40 MHz band within the second 80 MHz band in the 320 MHz band is punctured,
- wherein the third pattern is a pattern in which a 40 MHz band within the third 80 MHz band in the 320 MHz band is punctured,
- wherein the fourth pattern is a pattern in which a 40 MHz band within the fourth 80 MHz band in the 320 MHz band is punctured,
- wherein for the first to fourth patterns, the 40 MHz band punctured within the first to fourth 80 MHz bands is one of 40 MHz bands at both ends of each 80 MHz band, is not a middle 40 MHz band of the each 80 MHz band,
- wherein the fifth pattern is a pattern in which the first 80 MHz band is punctured in the 320 MHz band,
- wherein the sixth pattern is a pattern in which the second 80 MHz band is punctured in the 320 MHz band,
- wherein the seventh pattern is a pattern in which the third 80 MHz band is punctured in the 320 MHz band,
- wherein the eighth pattern is a pattern in which the fourth 80 MHz band is punctured in the 320 MHz band, and
- wherein for the fifth to eighth patterns, the first to fourth 80 MHz bands are punctured, and two or more of the 80 MHz bands among the first to fourth 80 MHz bands are not partially punctured in the 320 MHz band.
21 more elements
A method in a wireless local area network (WLAN) system, the method comprising:
- generating, by a transmitting station (STA), a Physical Protocol Data Unit (PPDU);
- and
- transmitting, by the transmitting STA, the PPDU to a receiving STA,
- wherein the PPDU includes a legacy preamble, first and second signal fields,
- wherein the legacy preamble and the first and second signal fields are generated based on a first phase rotation value, and
- wherein based on the PPDU being transmitted through a 320 MHz band, the first phase rotation value is [1 1 1 −1 1 1 1 −1 −1 −1 −1 1 −1 −1 1 −1],
- wherein the first phase rotation value is obtained based on a first preamble puncturing pattern of the 320 MHz band,
- wherein the first preamble puncturing pattern includes a pattern in which a 40 MHz or 80 MHz band is punctured in the 320 MHz band,
- wherein the 320 MHz band includes first to fourth 80 MHz bands,
- wherein the first preamble puncturing pattern includes first to fourteenth patterns,
- wherein the first pattern is a pattern in which a 40 MHz band within the first 80 MHz band in the 320 MHz band is punctured,
- wherein the second pattern is a pattern in which a 40 MHz band within the second 80 MHz band in the 320 MHz band is punctured,
- wherein the third pattern is a pattern in which a 40 MHz band within the third 80 MHz band in the 320 MHz band is punctured,
- wherein the fourth pattern is a pattern in which a 40 MHz band within the fourth 80 MHz band in the 320 MHz band is punctured,
- wherein for the first to fourth patterns, the 40 MHz band punctured within the first to fourth 80 MHz bands is one of 40 MHz bands at both ends of each 80 MHz band, is not a middle 40 MHz band of the each 80 MHz band,
- wherein the fifth pattern is a pattern in which the first 80 MHz band is punctured in the 320 MHz band,
- wherein the sixth pattern is a pattern in which the second 80 MHz band is punctured in the 320 MHz band,
- wherein the seventh pattern is a pattern in which the third 80 MHz band is punctured in the 320 MHz band,
- wherein the eighth pattern is a pattern in which the fourth 80 MHz band is punctured in the 320 MHz band, and
- wherein for the fifth to eighth patterns, the first to fourth 80 MHz bands are punctured, and two or more of the 80 MHz bands among the first to fourth 80 MHz bands are not partially punctured in the 320 MHz band.
17 more elements
Dependencies are inferred from the claim text.