Lg Electronics Inc.

Samsung Electronics Co., Ltd.

Yonsei University

Other

Lg Elctronics Inc.

Qualcomm Incorporated

Taissa Research LLC

Jinmin Kim

Jaehoon Chung

Jinsoo Choi

Kwangseok Noh

Kukheon Choi

Eunsung Park

Sungjin Park

Seunghee Han

Dongguk Lim

Eunjong Lee

Genebeck Hahn

Hyunwoo Lee

Hangyu Cho

Sunwoong Yun

Hyunsoo Ko

Kyungtae Jo

Jinyoung Chun

KiTae Kim

Hyukmin Son

Hyeyoung Choi

Kiseon Ryu

Jeongki Kim

Kitae Kim

Sangrim Lee

Saehee Bang

Sunam Kim

Sungho Moon

Jaewook Song

Jiwon Kang

Dongcheol Kim

Sungho Park

Taewon Song

Soocheol Kyeong

Hyowon Bae

Kyunghaeng Lee

Suhwook Kim

Insun Jang

Jiwoong Jang

Soyeon Kim

Wookbong Lee

Myeongjin Kim

Binchul Ihm

Chulho Chung

Eunsung Jeon

Kyuin Lee

Hyunsik Park

Heejeong Cho

Kilbom Lee

Kyungjun Choi

Daehyun Kim

Hyunmog Park

Jonghun Han

Donghyun Lee

Sangkil Lee

Hei Seung Kim

Byung-Wook Min

Kwangsoon Kim

Hyukjin Chae

Changhwan Park

Ilmu Byun

Dongkyu Kim

Jinsung Kim

Jungwoo Kim

Hyunsu Cha

Ihor Vasyltsov

Youngnam Hwang

Daesik Hong

Sungyoon Cho

Yongha Park

Dongku Kim

Jaewon Yang

Haesoon Lee

Chijun Ahn

Yeonho Jo

Sangil Yoon

Seunglae Kam

Jeounggon Yoo

Byungjai Im

Seongyeon Kim

Jungho Noh

Takki Yu

Jinyoung Jang

The present disclosure relates to a method for a hybrid automatic repeat request (HARQ) operation at a physical (PHY) layer level in a wireless local area network (LAN) system or an apparatus for performing same. The method is characterized in receiving, from a transmitting station (STA), a physical protocol data unit (PPDU) including a receiver identifier (ID) which is a physical (PHY) layer signal, performing an error check on the PPDU, based on the error check, transmitting an HARQ feedback frame which is a PHY layer signal, and receiving a retransmission PPDU.

HARQ operation at PHY layer level

Proposed are a method and device for receiving a PPDU in a wireless LAN system. Specifically, reception STAs receive a PPDU from a transmission STA, and decode the PPDU. The PPDU includes a legacy preamble, an EHT preamble, and a data field. The EHT preamble includes first and second fields. The first field includes information about the type of the PPDU. The second field includes information about the number of the reception STAs to receive the PPDU.

Method and device for setting PPDU type in wireless LAN system

One example according to the present specification relates to a technique related to configuration of a preamble in a wireless LAN (WLAN) system. According to various embodiments, a receiving STA may receive an NDP frame. The NDP frame may comprise a first signal field and a second signal field. The first signal field may comprise first information about a PHY version. The second signal field may comprise second information about transmission of a PPDU, set on the basis of the first information. The receiving STA may perform channel sounding on the basis of the NDP frame.

Method for configuring preamble in wireless communication system

The present disclosure provides methods and apparatuses for wireless communications. In some embodiments, a wireless communication method of a first device includes receiving a physical layer protocol data unit (PPDU) from a second device, and identifying a channel bandwidth of the PPDU based on a first field and a second field related to the channel bandwidth of the PPDU. The first field and the second field are extracted from a signal field included in the PPDU.

Device and method for supporting communication using plurality of bandwidths in wireless local area network system

A method and an apparatus for transmitting an EHT PPDU to a WLAN system are proposed. Specifically, a transmitter generates and transmits an EHT PPDU to a receiver through a 320 MHz band from which an 80 MHz band is punctured. The EHT PPDU includes a legacy preamble and an EHT field. The legacy preamble includes an L-STF and an L-LTF. The legacy preamble is generated by applying a first phase rotation value. The first phase rotation value is obtained on the basis of a second phase rotation value and a third phase rotation value. The second phase rotation value is a phase rotation value that repeats a phase rotation value defined for the 80 MHz band in an 802.11ax system. The third phase rotation value is a phase rotation value defined in unit of the 80 MHz band in the 320 MHz band on the basis of an optimal PAPR of the L-STF and L-LTF. The first phase rotation value is [1 1 −1 −1 −j −j j j 1 1 −1 −1 −j −j j j].

Method and apparatus for applying phase rotation in broadband with 80MHz based preamble puncturing performed in WLAN system

One example according to the present specification relates to a method for performing a feedback during a HARQ operation. A reception STA can determine the number of data blocks related to one from among one or more feedback bits, on the basis of the length of a PSDU. The reception STA can transmit the at least one feedback bit to a transmission STA on the basis of the number of data blocks.

Method and apparatus for performing HARQ operation

Proposed are a method and 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 control field and a data field. If the broadband is a 160/80+80 MHz band that includes a primary 80 MHz channel and a secondary 80 MHz channel, the data field is received via a second multiple RU in which 484-RU and a first multiple RU are aggregated. The first multiple RU is a multiple RU in which first and second 26-RUs, 52-RUs and 106-RUs are aggregated. The second multiple RU is allocated in the primary 80 MHz channel and the secondary 80 MHz channel.

Method and device for receiving PPDU via multiple RU in wireless LAN system

An AP and a STA can perform a PHY-level HARQ operation in a wireless local area network system, and the AP can transmit resource allocation information about a PHY-level feedback frame to be transmitted by a plurality of STAs. The AP can receive a plurality of HARQ feedback frames from a plurality of STAs. The plurality of HARQ feedback frames are PHY layer signals. The resource allocation information can include information related to a tone set and a symbol from which transmission of the plurality of HARQ feedback frames are started.

HARQ operations at PHY layer level

Proposed are a method and device for receiving an EHT PPDU on the basis of a tone plan in a wireless LAN system. Specifically, a reception STA receives the EHT PPDU from a transmission STA through a 320 MHz band. The reception STA decodes the EHT PPDU. The EHT PPDU includes a control field and a data field. The control field includes information about a pilot tone. The information about the pilot tone includes allocation information indicating that a first pilot tone for the 320 MHz band is configured by repeating a second pilot tone for an 80 MHz band defined in an 802.11ax wireless LAN system. The first pilot tone is received in a data field on the basis of the allocation information.

Method and device for setting pilot tone in wideband in wireless LAN system

According to various embodiments, a reception STA may receive a physical layer protocol data unit (PPDU) including a first field and a second field from a transmission STA. The first field may include information about a configuration of a plurality of resource units (RUs). The second field may include a plurality of user fields for allocating the plurality of RUs to a plurality of users. The reception STA may identify a multiple RU (M-RU) allocated to itself and decode the received PPDU.

Technique for allocating resource unit in wireless communication system

In a wireless local area network (LAN) system, a station (STA) can generate a plurality of long training field (LTF) symbols used for a plurality of streams including first to fourth streams. The first to fourth streams use different LTF sequences, and the LTF sequences used by the first to fourth streams may be multiplied by the same element of a P matrix. The STA may include a step for transmitting a PHY protocol data unit (PPDU) including the plurality of LTF symbols.

LTF compressed transmission

An example according to the present specification relates to a technique for configuring a preamble in a wireless LAN (WLAN) system. A transmitting STA may generate and transmit an EHT PPDU. The EHT PPDU may comprise an L-SIG field, an RL-SIG field, a first control field, and a second control field. A result of 'modulo 3 operation' for a length field value of the L-SIG field may be set to “0.” The RL-SIG field may be configured to be the same as the L-SIG field. The first control field may comprise 3-bit information on the version of a PPDU, 6-bit information on a BSS color, and 7-bit information on TXOP.

Technique for configuring preamble in wireless communication system

A wireless communication method, by a first apparatus, includes receiving a first Physical Layer Protocol Data Unit (PPDU) from a second apparatus, extracting a first field from a first signal field included in the first PPDU, and identifying the number of symbols in the second signal field included in the first PPDU based on a value of the first field, wherein, when the first field has a first value, the identifying the number of symbols in the second signal field includes identifying that the number of symbols in the second signal field is equal to or greater than a first number.

Apparatus and method for extended signal field

A method and a device for transmitting an A-PPDU in a wireless LAN system are proposed. Specifically, a transmission STA generates an A-PPDU and transmits the A-PPDU to a reception STA. A first PPDU and a second PPDU are aggregated into the A-PPDU. The first PPDU includes an L-Header field, a first EDMG-Header field, and a first data field. The second PPDU includes a second EDMG-Header field and a second data field. Zero padding is inserted in the first data field on the basis of the minimum number of symbol blocks of the first PPDU.

Method for transmitting/receiving A-PPDU in wireless LAN system and device therefor

A transmission station (STA) of a wireless local area network system may configure a plurality of blocks for encoding. The plurality of blocks may each include a data block and a CRC block for detecting an error of the data block. The transmission STA encodes each of the plurality of blocks and may transmit the plurality of encoded blocks.

Encoding technique for HARQ operation

Growing community of inventors

Seoul, South Korea

Jinmin Kim