公开(公告)号：US20220182870A1

公开(公告)日：2022-06-09

申请号：US17680848

申请日：2022-02-25

Applicant: Intel Corporation

Inventor： Feng Jiang ,  Qinghua Li ,  Jonathan Segev ,  Xiaogang Chen ,  Robert Stacey

IPC: H04W24/10 ,  H04L5/00 ,  H04W72/04

Abstract: This disclosure describes systems, methods, and devices related to null data packet (NDP) frame format. A device may cause to send a null data packet announcement (NDPA) frame to a responding station device (RSTA). The device may cause to send a first sounding NDP frame comprising one or more fields formatted to support 2.4 gigahertz (GHz) and 5 GHz bands in a non-trigger-based ranging measurement with the RSTA. The device may identify after a passage of a short inter-frame space (SIFS) time a second NDP frame received from the RSTA. The device may identify a location measurement report frame from the RSTA.

公开(公告)号：US20220174729A1

公开(公告)日：2022-06-02

申请号：US17673238

申请日：2022-02-16

Applicant: Intel Corporation

Inventor： Feng Jiang ,  Dibakar Das ,  Xiaogang Chen ,  Chittabrata Ghosh ,  Qinghua Li ,  Jonathan Segev ,  Robert Stacey ,  Ganesh Venkatesan

IPC: H04W74/06 ,  H04W40/12 ,  H04W24/10 ,  H04W64/00 ,  G01S5/00

Abstract: This disclosure describes systems, methods, and devices related to uplink (UL) null data packet (NDP) format for passive location. A device may cause to send a trigger frame that solicits poll response to one or more anchor stations involved in a passive ranging measurement. The device may identify one or more polling response frames received from the one or more anchor stations. The device may cause to send a trigger frame that solicits uplink null data packet (NDP) to the one or more anchor stations, wherein the uplink NDP comprises an indication of a high efficiency (HE) single user (SU) frame type. The device may identify one or more uplink NDPs received from the one or more anchor stations

公开(公告)号：US11324002B2

公开(公告)日：2022-05-03

申请号：US16882824

申请日：2020-05-26

Applicant: Intel Corporation

Inventor： Xiaogang Chen ,  Shlomi Vituri ,  Assaf Gurevitz ,  Qinghua Li ,  Feng Jiang

IPC: H04W72/04 ,  H04L5/00

Abstract: This disclosure describes systems, methods, and devices related to tone mapping for a high-efficiency (HE) trigger-based (TB) null data packet (NDP) feedback physical layer protocol data unit (PPDU). A device may identify a frame received from a second device. The device may determine, based on the frame, a resource unit allocated to the device, wherein the resource unit is associated with a 20 MHz sub-channel of a bandwidth. The device may determine, based on the resource unit and the bandwidth, tones associated with a HE short training field (HE-STF) of a HE TB NDP feedback PPDU. The device may send the HE TB NDP feedback PPDU to the second device in the 20 MHz sub-channel, wherein the HE TB NDP feedback PPDU includes the tones.

公开(公告)号：US20220124718A1

公开(公告)日：2022-04-21

申请号：US17646533

申请日：2021-12-30

Applicant: Intel Corporation

Inventor： Xiaogang Chen ,  Shlomi Vituri ,  Assaf Gurevitz ,  Qinghua Li ,  Feng Jiang

IPC: H04W72/04 ,  H04L5/00

Abstract: This disclosure describes systems, methods, and devices related to tone mapping for a high-efficiency (HE) trigger-based (TB) null data packet (NDP) feedback physical layer protocol data unit (PPDU). A device may identify a frame received from a second device. The device may determine, based on the frame, a resource unit allocated to the device, wherein the resource unit is associated with a 20 MHz sub-channel of a bandwidth. The device may determine, based on the resource unit and the bandwidth, tones associated with a HE short training field (HE-STF) of a HE TB NDP feedback PPDU. The device may send the HE TB NDP feedback PPDU to the second device in the 20 MHz sub-channel, wherein the HE TB NDP feedback PPDU includes the tones.

公开(公告)号：US20220124684A1

公开(公告)日：2022-04-21

申请号：US17561905

申请日：2021-12-24

Applicant: Intel Corporation

Inventor： Yonathan Segev ,  Carlos Cordeiro ,  David Birnbaum ,  Qinghua Li ,  Xiaogang Chen

IPC: H04W72/04 ,  H04L67/104

Abstract: Logic to generate, by an access point (AP) station (STA), a medium access control (MAC) resource assessment trigger frame to transmit during a first transmission opportunity (TxOP), the MAC resource assessment trigger frame to allocate a portion of the first TxOP to a first STA and to request a first resource assessment from a first group of STAs for evaluation by the first STA, the first resource assessment to assess peer-to-peer (P2P) data transfers between the first group of STAs and the first STA. Logic to cause transmission of the MAC resource assessment trigger frame to the first STA and the first group of STAs. And logic to receive one or more short term resource assessment frames from the first group of STAs, the one or more short term resource assessment frames each comprising an indication of resources for a data transfer.

公开(公告)号：US20220116139A1

公开(公告)日：2022-04-14

申请号：US17560327

申请日：2021-12-23

Applicant: Intel Corporation

Inventor： Xiaogang Chen ,  Thomas Kenney ,  Qinghua Li ,  Hao Song ,  Robert Stacey

IPC: H04L1/00

Abstract: The application relates to an apparatus and method used in Wireless Local Area Networks (WLANs). The apparatus includes: a wireless interface; and processor circuitry coupled to the wireless interface and configured to: generate a Physical layer Protocol Data Unit (PPDU) with a Low Density Parity Check (LDPC) coding scheme; and provide the PPDU to the wireless interface for transmitting, wherein the PPDU comprises one special codeword and more than one regular codeword and does not comprise a padding bit before Forward Error Correction (FEC) codes, and the regular codeword has a fixed codeword size, which can be different from a codeword size of the special codeword.

公开(公告)号：US11296830B2

公开(公告)日：2022-04-05

申请号：US16784024

申请日：2020-02-06

Applicant: Intel Corporation

Inventor： Laurent Cariou ,  Xiaogang Chen ,  Po-Kai Huang ,  Feng Jiang ,  Thomas J. Kenney ,  Qinghua Li ,  Robert Stacey

IPC: H04W84/12 ,  H04L1/18 ,  H04L1/00 ,  H04W80/02

Abstract: This disclosure describes systems, methods, and devices related to an enhanced hybrid automatic repeat request (HARQ). A device may determine two or more HARQ medium access control (MAC) frames. The device may determine a difference between a first number of bits of a physical layer (PHY) codeword and a second number of bits of a first HARQ MAC frame of the two or more HARQ MAC frames. The device may generate, based on the difference, a third number of bits, wherein the first number of bits is equal to a sum of the second number of bits and the third number of bits. The device may generate an aggregated MAC frame comprising the first HARQ MAC frame, the third number of bits, and a second HARQ MAC frame of the two or more HARQ MAC frames. The device may send the aggregated MAC frame.

公开(公告)号：US20210384956A1

公开(公告)日：2021-12-09

申请号：US17405248

申请日：2021-08-18

Applicant: Intel Corporation

Inventor： Xintian Lin ,  Yuan Zhu ,  Jonathan Segev ,  Qinghua Li ,  Xiaogang Chen ,  Feng Jiang

IPC: H04B7/06

Abstract: This disclosure describes systems, methods, and devices related to antenna configuration parameters. A device may determine one or more antennas having one or more phases. The device may determine a first delay associated with a first antenna of the one or more antennas. The device may determine a second delay associated with a second antenna of the one or more antennas. The device may cause to send a frame to a first station device using the first antenna, wherein the frame comprises a first indication of the delay associated with the first antenna and a second indication of the delay associated with the second antenna.

公开(公告)号：US20210377971A1

公开(公告)日：2021-12-02

申请号：US17401691

申请日：2021-08-13

Applicant: Intel Corporation

Inventor： Minyoung Park ,  Thomas J. Kenney ,  Laurent Cariou ,  Po-Kai Huang ,  Qinghua Li ,  Xiaogang Chen ,  Feng Jiang

IPC: H04W72/12 ,  H04W72/04

Abstract: Embodiments of an Extremely High Throughput Station (EHT STA) (STA1) configured for operating in a next-generation (NG) wireless local area network (WLAN) are described herein. In some embodiments, the EHT STA encodes a common signal field (SIG) (Coex-SIG) of an EHT PPDU to include a TXOP duration field. The TXOP duration field is more than seven bits to indicate an actual TXOP duration of a transmission from the EHT STA comprising the EHT PPDU transmitted to a second station (STA2). Decoding the TXOP duration field of the EHT PPDU by a third-party station (STA4) causes the third-party station (STA4) to defer a transmission until after an end of the transmission from the second station (STA2).

公开(公告)号：US20210329642A1

公开(公告)日：2021-10-21

申请号：US17359559

申请日：2021-06-26

Applicant: Intel Corporation

Inventor： Xiaogang Chen ,  Assaf Gurevitz ,  Thomas Kenney ,  Qinghua Li ,  Shlomi Vituri

IPC: H04W72/04 ,  H04W74/00 ,  H04W80/02

Abstract: Logic to initialize a scrambler. Logic to receive a portion of a first physical layer protocol data unit (PPDU) comprising a multi-user ready to send (MU-RTS) and first scrambler initialization bit sequence used to scramble the MU-RTS prior to transmission of the PPDU. Logic to determine a second scrambler initialization bit sequence in accordance with a pre-defined procedure. Logic to generate a medium access control (MAC) clear to send (CTS) frame to transmit in response to receipt of the MU-RTS. Logic to initialize a scrambler with the scrambler initialization bit sequence. Logic to generate a second PPDU comprising the CTS frame, the generation of the second PPDU to scramble the CTS frame with the scrambler after initialization. Logic to cause the transmission of the second PPDU in response to receipt of the MU-RTS. And logic to determine scrambler initialization bits having seven least significant bits are not all zeros.