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公开(公告)号：US20230300818A1
公开(公告)日：2023-09-21
申请号：US18201252
申请日：2023-05-24
Applicant: Intel Corporation
Inventor： Juan Fang , Po-Kai Huang , Qinghua Li , Robert J. Stacey , Thomas J. Kenney , Minyoung Park , Shlomi Vituri
IPC: H04W72/121 , H04W72/0457
CPC classification number: H04W72/121 , H04W72/0457
Abstract: An access point station (AP) generates a trigger frame (TF) for transmission to two or more non-AP stations (STAs) or groups of STAs. The trigger frame may allocate resource units (RUs) for a trigger-based (TB) transmission to the two or more STAs. The AP may encode the trigger frame to include a Common Info field followed by one or more Special User Info fields. The Common Info field and the one or more Special User Info fields and may be encoded to solicit (i.e., trigger) a trigger-based (TB) Frequency Aggregated Physical layer Protocol Data Unit (PPDU) (FA-PPDU) that includes more than one PPDU of at least two different physical layer (PHY) types from the two or more STAs or groups of STAs. The different PHY types may include high-efficiency (HE), Extremely High Throughput (EHT), Ultra-High Rate (UHR), and UHR+. Accordingly, an AP can trigger a FA-PPDU that includes TB PPDUs of different PHY types.
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公开(公告)号：US11750321B2
公开(公告)日：2023-09-05
申请号：US17110611
申请日：2020-12-03
Applicant: Intel Corporation
Inventor： Yaron Yoffe , Assaf Gurevitz , Elad Meir , Shlomi Vituri , Qinghua Li , Feng Jiang , Xiaogang Chen
CPC classification number: H04L1/0042 , H04L1/0061 , H04L27/04
Abstract: This disclosure describes systems, methods, and devices related to enhanced constellation shaping. A device may generate payload bits associated with a frame, wherein the payload bits comprise a first portion and a second portion. The device may send the first portion of the payload bits through a shaping encoder. The device may generate shaped bits from the shaping encoder. The device may determine a number of amplitude bits based on the shaped bits. The device may generate parity bits from the shaped bits and the second portion going through an low-density parity-check (LDPC) encoder. The device may select sign bits comprising the second portion and a first subset of the parity bits. The device may send the amplitude bits with the sign bits to a modulator before transmitting the frame to a first station device.
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公开(公告)号：US20210410143A1
公开(公告)日：2021-12-30
申请号：US17471112
申请日：2021-09-09
Applicant: Intel Corporation
Inventor： Qinghua Li , Xiaogang Chen , Assaf Gurevitz , Thomas J. Kenney , Shlomi Vituri , Feng Jiang
Abstract: This disclosure describes systems, methods, and devices related to extreme high throughput (EHT) data scrambler. A device may determine an extreme high throughput (EHT) data field of a frame to be scrambled using an EHT data scrambler. The device may determine to initialize the EHT data scrambler using an initialization seed, wherein the initialization seed has a size greater than seven bits. The device may generate scrambled data using the initialization seed. The device may cause to send the frame comprising the scrambled data to a first station device.
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公开(公告)号：US20210329410A1
公开(公告)日：2021-10-21
申请号：US17158302
申请日：2021-01-26
Applicant: Intel Corporation
Inventor： Dibakar Das , Jonathan Segev , Chittabrata Ghosh , Ganesh Venkatesan , Feng Jiang , Qinghua Li , Xiaogang Chen , Eran Segev , Huaning Niu , Shlomi Vituri , Elad Oren , Chen Kojokaro
Abstract: Methods, apparatuses, and computer readable media for report identification and power control for ranging in a wireless network are disclosed. An apparatus of a responding station (RSTA) is disclosed, where the apparatus comprises processing circuitry configured to perform ranging with a initiating stations (ISTAs) and maintain a separate sounding dialogue token for each of the ISTAs and transmit a corresponding sounding dialogue token for a ISTA in a trigger frame for ranging and sounding or a null data packet announcement (NDPA) frame, and in a responding to initiating location measurement report. Apparatuses of RSTAs and ISTAS are disclosed that perform power control management during non-trigger-based ranging.
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15.发明申请公开(公告)号：US20250062946A1
公开(公告)日：2025-02-20
申请号：US18938568
申请日：2024-11-06
Applicant: Intel Corporation
Inventor： Qinghua Li , Hao Song , Shlomi Vituri , Assaf Gurevitz , Robert Stacey
Abstract: This disclosure describes systems, methods, and devices for probabilistic constellation shaping in wireless transmissions may include a device configured to generate, using a first quadrature amplitude modulation (QAM) order shaping encoder associated with a first code rate, shaped amplitude bits; generate, using a forward error correcting (FEC) encoder and a second code rate smaller than the first code rate, parity bits for the shaped amplitude bits; cause to transmit, using a channel, a first portion of the parity bits as sign bits for the shaped amplitude bits; and cause to transmit, using the channel, a second portion of the parity bits.
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Patent Agency Ranking
公开(公告)号：US11637654B2
公开(公告)日：2023-04-25
申请号：US16998528
申请日：2020-08-20
Applicant: Intel Corporation
Inventor： Yaron Yoffe , Assaf Gurevitz , Elad Meir , Shlomi Vituri , Qinghua Li , Xiaogang Chen , Feng Jiang
Abstract: An apparatus for a station (STA) configured for operating in a next-generation (NG) wireless local area network (WLAN) comprises the processing circuitry configured to modify probabilities of constellation points to generate a more Gaussian distribution. In these embodiments, for LDPC framing and OFDM packing, the transmitter circuitry may be configured to compute a number of output bits (bout) to be transmitted based on a number of payload bits (bin) at an output of a shaping encoder, a shaping rate (rshaping), and an overhead percent (Boverhead). A shaping gain of up to 1.53 dB may be achieved. A new shaping encoder is provided to address the issue that the number of bits is not fixed.
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公开(公告)号：US11616615B2
公开(公告)日：2023-03-28
申请号：US16736535
申请日：2020-01-07
Applicant: Intel Corporation
Inventor： Feng Jiang , Qinghua Li , Xiaogang Chen , Dibakar Das , Assaf Gurevitz , Jonathan Segev , Robert Stacey , Shlomi Vituri , Tzahi Weisman
Abstract: This disclosure describes systems, methods, and devices related to adaptation of secure sounding signal. A device may determine a negotiated bandwidth to be used when communicating with a first station device. The device may determine a first bit stream used to generate a cyclic shift diversity (CSD) value based on the negotiated bandwidth, wherein a first number of bits is used for the first bit stream when a first negotiated bandwidth is used, and wherein a second number of bits is used for the first bit stream when a second negotiated bandwidth is used. The device may determine a second bit stream used to generate a random phase. The device may determine a secure a long training field (LTF) based on a combination of the first bit stream and the second bit stream. The device may cause to send a frame to the first station device, wherein the frame comprises the secure LTF.
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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
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.
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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
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.
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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
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.
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