Method and device for applying optimized phase rotation to broadband in wireless LAN system
AssigneeLG Electronics Inc.
InventorsEunsung Park, Jinyoung Chun, Jinsoo Choi, Dongguk Lim
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Abstract
Proposed are a method and a device for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives a PPDU from a transmission 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 corresponds to a 320 MHz band, the first phase rotation value is [1 −1 j j 1 1 j −j j −j −1 −1 −j −j 1 −1].
Claims13
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 through a broadband;
- 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, and
- wherein when the broadband is a 320 MHz band, the first phase rotation value is [1 −1 j j 1 1 j −j j −j −1 −1 −j −j 1 −1].
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) through a broadband, 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, and
- wherein when the broadband is a 320 MHz band, the first phase rotation value is [1 −1 j j 1 1 j −j j −j −1 −1 −j −j 1 −1].
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 through a broadband,
- 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 when the broadband is a 320 MHz band, the first phase rotation value is [1 −1 j j 1 1 j −j j −j −1 −1 −j −j 1 −1].
Dependencies are inferred from the claim text.