Abstract: A method provides for reducing interlink interference between an access point (AP) multi-link device (MLD) having a simultaneous transmit and receive (STR) link set and a non-AP MLD with a non-STR link set. The method includes transmitting data, by the AP MLD, to the non-AP MLD on a first link, simultaneously receiving data, by the AP MLD from the non-AP MLD, on a second link, and aligning, by the AP MLD, an end time of transmitted physical layer protocol data units (PPDUs) using padding in response to concurrently transmitting another PPDU, by the non-AP MLD, on a link that is part of the non-STR link set.

Abstract: A method is described for aligning high efficiency (HE), extremely high throughput (EHT), and EHT+sub-physical layer protocol data units (sub-PPDUs) included in an aggregated PPDU (APPDU) trigger frame. The method includes aligning a preamble portion of the sub-PPDUs by applying a multi-user PPDU (MU-PPDU) format to each of the sub-PPDUs and aligning a data portion of the sub-PPDUs by including a padding subfield in each of the sub-PPDUs to produce a common length.

Abstract: The present invention relates to a method and apparatus for transmitting and receiving data. A data transmission method from a sender terminal to a receiver terminal in a MIMO system using a variable frequency band according to one embodiment of the present invention comprises: repeatedly generating a signal field depending on a frequency band that is applied to the transmission of a data frame; generating a data field including the data; generating a data frame including the signal field and the data field; and transmitting the data frame to the receiver terminal. The present invention is advantageous in that a signal field which is transmitted together with the data being transmitted from the sender terminal to the receiver terminal in the MIMO system can be sent more efficiently.

Abstract: A method is described for generating and transmitting a frame by a station (STA). The method includes determining a bandwidth of a frame to be transmitted by the STA, generating a long training field for the frame, the long training field including a set of pilot tones located at a set of subcarrier positions, and transmitting the frame with the long training field to a recipient. In response to the bandwidth of the frame is 10 MHz, the set of subcarrier positions includes four subcarrier positions. In response to the bandwidth of the frame is 20 MHz, the set of subcarrier positions includes six subcarrier positions.

Abstract: A method for channel sounding for high efficiency (HE) and extreme high throughput (EHT) stations (STAs) includes receiving, by a station (STA), an aggregate physical layer protocol data unit (A-PPDU) from an access point (AP), the A-PPDU including an HE sounding null data packet (NDP) and an EHT sounding NDP, receiving, by the STA, a beamforming report poll frame (BFRP) from the AP, and receiving, by the STA, one or more compressed beamforming (BF)/channel quality indicator (CQI) frames. The HE sounding NDP or the EHT sounding NDP overlaps 242-tone resource units (RUs) corresponding to bits with a value of 1 in the bitmap of the TXVECTOR parameter INACTIVE_SUBCHANNELS or overlaps a punctured center 26-tone RU of an HE sounding NDP, the HE sounding NDP or the EHT sounding NDP being punctured.

Abstract: A method is described for a wireless device, which includes determining padding for a sub-physical layer (PHY) protocol data unit (sub-PPDU) in an aggregated PPDU (APPDU). The method includes generating the sub-PPDU that includes a preamble portion and a data portion, determining a longest sub-PPDU for the APPDU to be transmitted, determining an amount and type of padding for the sub-PPDU where the sub-PPDU in not the longest sub-PPDU in the APPDU, adding padding to the sub-PPDU to align the end of the sub-PPDU with the end of the longest sub-PPUD, and transmitting the sub-PPDU through a wireless medium on a transmission channel to a receiving device as part of the APPDU.

Abstract: The present invention relates to a method and apparatus for transmitting and receiving data. A data transmission method from a sender terminal to a receiver terminal in a MIMO system using a variable frequency band according to one embodiment of the present invention comprises: repeatedly generating a signal field depending on a frequency band that is applied to the transmission of a data frame; generating a data field including the data; generating a data frame including the signal field and the data field; and transmitting the data frame to the receiver terminal. The present invention is advantageous in that a signal field which is transmitted together with the data being transmitted from the sender terminal to the receiver terminal in the MIMO system can be sent more efficiently.

Abstract: Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: deciding the number of bits (s) and encoders (NES) to allocate to one axis of a signal constellation; encoding an information bit based on the s and the NES and generating a coded block; parsing the coded block based on the s and the NES and generating a plurality of frequency sub-blocks; and transmitting the plurality of frequency sub-blocks to a receiver.

Abstract: A method is described for communicating in a network. The method includes setting a type bit in a frame to indicate whether the frame is scheduling an uplink transmission for only a first set of stations in the wireless network or the first set of stations and a second set of stations in the wireless network and transmitting the frame to (1) all stations in the first set of stations when the type bit indicates that the trigger frame is scheduling the uplink transmission for the first set of stations and (2) all stations in the second set of stations when the type bit indicates that the trigger frame is scheduling the uplink transmission for the first set of stations and the second set of stations.

Abstract: A method is performed by a wireless device functioning as a beamformer station (STA) in a wireless network to perform a sounding procedure. The method includes wirelessly transmitting a null data packet (NDP) announcement frame in a first frequency band, the NDP announcement frame including a sounding dialog token field where bits B0 and B1 of the sounding dialog token field are set to binary ‘1’ to indicate the NDP announcement frame should be processed as an extremely high throughput (EHT) NDP announcement frame, and wirelessly transmitting an NDP frame in a second frequency band.

Abstract: A method performed by a wireless device functioning as a beamformee station in a wireless network to perform a sounding procedure. The method includes wirelessly receiving a null data packet (NDP) announcement frame from a beamformer station, wherein the NDP announcement frame includes an indication of whether the beamformee station should acknowledge the NDP announcement frame and responsive to determining that the NDP announcement frame includes an indication that the beamformee station should acknowledge the NDP announcement frame, wirelessly transmitting an acknowledgement frame for the NDP announcement frame to the beamformer station.

Abstract: Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: deciding the number of bits (s) and encoders (NES) to allocate to one axis of a signal constellation; encoding an information bit based on the s and the NES and generating a coded block; parsing the coded block based on the s and the NES and generating a plurality of frequency sub-blocks; and transmitting the plurality of frequency sub-blocks to a receiver.

Abstract: The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal.

Abstract: A method for encoding a bitstream is described. The method includes receiving, by an error correction unit, the bitstream; performing, by the error correction unit, encoding on the bitstream to generate an encoded bit stream that includes the bitstream and parity bits; processing, by a constellation unit, the encoded bitstream to generate constellation points in one or more encoded streams; determining, by a low-density parity-check (LDPC) tone mapper, a distance between subcarriers in an Orthogonal Frequency Division Multiplexing (OFDM) symbol of the frame; and performing, by the LDPC tone mapper, LDPC tone mapping based on the one or more encoded streams and on the determined distance to generate a permuted stream of complex numbers, wherein the distance between subcarriers is determined to be either (1) 18 for a first resource unit size used in the frame and (2) 20 for a second resource unit size used in the frame.

Abstract: The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal.

Abstract: A method is described for communicating in a network. The method includes setting a type bit in a frame to indicate whether the frame is scheduling an uplink transmission for only a first set of stations in the wireless network or the first set of stations and a second set of stations in the wireless network and transmitting the frame to (1) all stations in the first set of stations when the type bit indicates that the trigger frame is scheduling the uplink transmission for the first set of stations and (2) all stations in the second set of stations when the type bit indicates that the trigger frame is scheduling the uplink transmission for the first set of stations and the second set of stations.

Abstract: A method performed by a wireless device functioning as a beamformee station in a wireless network to perform a sounding procedure. The method includes wirelessly receiving a null data packet (NDP) announcement frame from a beamformer station, wherein the NDP announcement frame includes an indication of whether the beamformee station should acknowledge the NDP announcement frame and responsive to determining that the NDP announcement frame includes an indication that the beamformee station should acknowledge the NDP announcement frame, wirelessly transmitting an acknowledgement frame for the NDP announcement frame to the beamformer station.

Abstract: The present invention relates to a method and apparatus for transmitting and receiving data. A data transmission method from a sender terminal to a receiver terminal in a MIMO system using a variable frequency band according to one embodiment of the present invention comprises: repeatedly generating a signal field depending on a frequency band that is applied to the transmission of a data frame; generating a data field including the data; generating a data frame including the signal field and the data field; and transmitting the data frame to the receiver terminal. The present invention is advantageous in that a signal field which is transmitted together with the data being transmitted from the sender terminal to the receiver terminal in the MIMO system can be sent more efficiently.

Abstract: A method is described for communicating in a network. The method includes setting a type bit in a frame to indicate whether the frame is scheduling an uplink transmission for a first set of stations or a first and second set of stations; configuring a common information field of the frame for (1) the first set of stations for the transmission and (2) when the type bit indicates, the second set of stations for the transmission; configuring a set of user information fields of the frame for (1) the first set of stations for the transmission and (2) when the type bit indicates, the second set of stations for the transmission; and transmitting the frame to (1) the first set of stations and (2) the second set of stations when the type bit indicates that the frame is scheduling for the first and second set of stations.

Abstract: A method by a wireless device functioning as a beamformer station in a wireless network to perform a sounding procedure. The method includes generating a NDPA frame, wherein the NDPA frame includes a sounding dialog token field, wherein bit B0 of the sounding dialog token field is set to binary ‘1’ and bit B1 of the sounding dialog token field is set to binary ‘1’ to indicate that the NDPA frame is an extremely high throughput (EHT) NDPA frame and wirelessly transmitting the NDPA frame to one or more beamformee stations. The NDPA frame may include an indication of whether a beamformee station should acknowledge the NDP announcement frame or not. The NDPA frame may be transmitted in a first frequency band, while a beamformed data frame is transmitted in a second frequency band that is a higher frequency band than the first frequency band.