Newracom, Inc.

Atlas Global Technologies LLC

Senscomm Semiconductor Co., Ltd.

Avalon Technology Solutions LLC

Other

Samsung Electronics Co., Ltd.

Yujin Noh

Dae Won Lee

Sungho Moon

Young Hoon Kwon

Jong-ee Oh

Jaeyoung Ryu

Minho Cheong

Dae Kyun Lee

Ahmad Reza Hedayat

Heejung Yu

Tan Joong Park

Jungchul Shin

Young-Hwan Kang

Seung Hyeok Ahn

Seung Ho Choo

Yong H Seok

Yongsuk Hwang

Yongho Seok

Youngjae Jung

Hyobin Yim

Sichan Noh

Min Seoung Kim

Hyungu Park

DaeHong Kim

Hee Jung Yu

Hyun Sik Jung

Joonsoo Lee

Daewon Lee

Jae Hyun Ahn

Junyoun Won

Daehong Kim

Minseoung Kim

Jong-Ee Oh

YongHo Seok

Yong Ho Seok

A method is performed by a wireless device. The method comprises receiving a predetermined number N of Orthogonal Frequency Division Multiplexing (OFDM) symbols of a PHY Protocol Data Unit (PPDU), determining, using the Nth received OFDM symbol, whether the PPDU is a PPDU according to a first wireless network standard or a PPDU according to a second wireless network standard, and decoding the PPDU according to the determined wireless network standard. The predetermined number N corresponds to either a location of a Legacy Signal (L-SIG) field in the PPDU or the location of a symbol of a second field of the second wireless network standard in the PPDU, the second field being different from the L-SIG field. The first and second wireless network standards may each be a Vehicle to Everything standard or an Intelligent Transportation System standard, and may be different from each other.

Communication format for a wireless network

A wireless devices communicates a transmission capability by determining a number of active transmits chains of the wireless device, determining a maximum number of space-time streams according to the number of active transmit chains, providing a frame with an indication of the maximum number of space-time streams, and transmitting the frame. The wireless devices may provide the indication of the maximum number of space-time streams in an Operating Mode field of High Efficiency Aggregate Control field of the frame. The maximum number of space-time streams may be a maximum number of space-time streams that may be used by the wireless device to respond to a Trigger frame.

Dynamic transmit chain availability signaling in wireless devices

An electronic device receives a physical layer (PHY) protocol data unit (PPDU) including a PHY preamble including a non-high-throughput (Non-HT) short training field (L-STF), a Non-HT long training field (L-LTF), a Non-HT signal (L-SIG) field, a repeated Non-HT signal (RL-SIG) field, and a universal signal (U-SIG) field. The electronic device checks a control field in the PPDU. The control field indicates whether the PHY preamble in the PPDU carries payload information and the PPDU carries no data field carrying payload information. The electronic device obtains the payload information from the PHY preamble and processes the payload information if the control field indicates that the PHY preamble in the PPDU includes the payload information and the PPDU carries no data field.

Low latency in wireless communication system

To receive data in data field of a PHY Protocol Data Unit (PPDU), wherein the data field includes mid-ambles, a number of mid-ambles and a number of data symbols included in the data field is determined. The number of mid-ambles is determined according to information in an HE-SIG-A field of the PPDU, information in an L-SIG field of the PPDU, and one or more predetermined values prescribed by a standard. The number of data symbols may be determined using the number of the mid-ambles, and the data received according to the number of mid-ambles and the number of data symbols.

Doppler mode in a wireless network

A method is described, which includes receiving, by a wireless station from a first access point, an overlapping basic service set (OBSS) status report request, which requests information from the station regarding a set of neighboring access points; transmitting, by the wireless station to the first access point, an OBSS status report that indicates path-loss characteristics of channels between the set of neighboring access points and the wireless station; receiving, by the wireless station from the first access point, an access point cooperation null data packet announcement frame, which indicates a cooperative transmission between the first access point and the second access point to the wireless station; receiving, by the wireless station from the first access point, a first null data packet and a second null data packet from the second access point, wherein the first and second null data packets are transmitted as part of the cooperative transmission.

Overlapping basic service set status indication for an access point cooperative transmission

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 Band Bof 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.

Frame exchange method for beamforming

A wireless communication device in a wireless system may generate a High Efficiency Physical Layer Convergence Procedure (PLCP) Protocol Data Unit (HE PPDU) frame including (i) an Orthogonal Frequency Division Multiplexing (OFDM) symbol including padding bits and (ii) an extension having a non-zero signal strength, and transmit the HE PPDU frame. A High Efficiency signal (HE-SIG) field of the transmitted HE PPDU frame may include an indication for a duration of the extension to avoid ambiguity of the extension. A communication device in a wireless system may receive an HE PPDU frame including (i) an OFDM symbol including padding bits, and (ii) an extension having a non-zero signal strength, and transmit an Acknowledgement frame a predetermined inter-frame space after an end of the HE PPDU frame. An HE-SIG field of the received HE PPDU may include an indication for duration of the extension to avoid ambiguity of the extension.

Support for additional decoding processing time in wireless LAN systems

A method performed by an apparatus in a wireless local area network (WLAN) is provided. The method comprises: transmitting a first physical layer convergence protocol (PLCP) protocol data unit (PPDU) for a first variant including a first control field and a second PPDU for a second variant including a second control field in A(aggregated)-PPDU, wherein the second PPDU for the second variant is transmitted in duplicate (DUP) mode; and receiving a first response to the first PPDU and a second response to the second PPDU in A-PPDU based on the first control field and the second control field, respectively, wherein the first variant is based on a first protocol standard and the second variant is based on a second protocol standard, and wherein the second protocol standard is beyond version of the first protocol standard.

Method and apparatus for supporting multiple user cascading sequence including A-PPDU in a wireless communication system

A method performed by a transmitter in a wireless local area network (WLAN) is provided. The method comprises: setting a second parameter in a second frame based on a first puncturing pattern indicated by a first parameter in a first frame for a basic service set (BSS) set up by an access point (AP); and transmitting, to a receiver, the second frame, wherein the first puncturing pattern is one of a plurality of puncturing patterns pre-determined for a third parameter in a third frame.

Method and apparatus for configuring puncturing patterns in wireless communication system

A method performed by an apparatus in a wireless local area network (WLAN) is provided. The method includes: transmitting a first NDP Announcement frame for a first variant and a second NDP Announcement frame for a second variant in A-PPDU transmission, wherein the first NDP Announcement frame for the first variant and the second NDP Announcement frame for the second variant have a same time duration and are transmitted in different frequency bands; and transmitting at least one Sounding NDP for the first variant for both at least one first STA for the first variant and at least one second STA for the second variant, wherein the first variant is based on a first protocol standard and the second variant is based on a second protocol standard, and wherein the second protocol standard is beyond version of the first protocol standard.

Method and apparatus for supporting A-PPDU transmission in sounding protocol sequence in a wireless communication system

A method performed by a transmitter in a wireless local area network (WLAN) includes: determining to operate in A(aggregated)-PPDU transmission, wherein the A-PPDU transmission includes transmission of multiple sub-PPDUs with different variants; and transmitting, to a receiver, a trigger frame including a first field and a second field, wherein the first field indicates whether a first special user information field including first additional common information for a first variant is present; and wherein the second field indicates whether a second special user information field including second additional common information for a second variant is present, and wherein the first special user information field is located before the second special user information field in the trigger frame.

Method and apparatus for configuring trigger frame for A-PPDU in a wireless communication system

A method for determining a number of symbols in a data field of a physical layer (PHY) protocol data unit (PPDU) is described. The method includes determining, by a wireless transmitting device, whether an aggregation subfield of a signal field of the PPDU is to be set to 1 and responsive to determining that the aggregation subfield of the signal field of the PPDU is not to be set to 1, calculating, by the wireless transmitting device, the number of symbols in the data field of the PPDU based on a PHY service data unit (PSDU) length value, wherein the PSDU length value is provided in a transmission vector (TXVECTOR) and the TXVECTOR also includes an aggregated media access control (MAC) protocol data unit pre-end-of-frame padding (APEP) length value of the PPDU.

Determining the number of symbols in a data field of a frame based on aggregation

An apparatus is provided. The apparatus performs operations including selecting a high efficiency long training field (HE LTF) sequence for a frame, selecting an HE LTF transmission mode from one of a 4× HE LTF mode, a 2× HE LTF mode, and a 1× HE LTF mode, transmitting only a set of allocated subcarriers of the HE LTF sequence for the frame, and transmitting a set of additional fields of the frame using the set of allocated subcarriers and a set of unallocated subcarriers. The set of additional fields includes a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signaling field (L-SIG), a high efficiency signaling A field (HE-SIG-A), and a high efficiency short training field (HE-STF). Transmitting of the HE LTF sequence for the frame uses only one or more of the set of allocated subcarriers, and none of the unallocated subcarriers.

Long training field sequence construction

A method performed by a transmitter in a wireless communication system is provided. The method comprises: identifying that a first parameter used for indicating a first puncturing pattern is set to be not present in a first frame based on predetermined condition; determining whether to operate in duplicate (DUP) mode; and in case that the transmitter determines to operate in the DUP mode, transmitting a second frame in the DUP mode, wherein data in a payload portion of the second frame is duplicated in frequency in the DUP mode.

Method and apparatus for transmitting PPDU in duplicate (DUP) mode in a wireless communication system

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.

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Irvine, CA, United States of America

Yujin Noh