公开(公告)号：US20250150237A1

公开(公告)日：2025-05-08

申请号：US18953048

申请日：2024-11-19

Applicant: QUALCOMM Incorporated

Inventor： Sameer VERMANI ,  Alfred ASTERJADHI ,  Yanjun SUN ,  Bin TIAN ,  Lin YANG ,  Jialing Li CHEN ,  George CHERIAN ,  Youhan KIM

IPC: H04L5/00

Abstract: This disclosure provides methods, devices and systems for generating enhanced sounding packets. Some implementations more specifically relate to sounding packet designs that support enhancements to wireless communication protocols associated with the Institute of Electrical and Electronics Engineers (IEEE) 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, an enhanced null data packet announcement (NDPA) frame may be configurable to support multiple versions of the IEEE 802.11 standard. For example, the enhanced NDPA frame may be configured in accordance with a legacy or a non-legacy NDPA frame format. In some other implementations, the enhanced NDPA frame may include a subfield carrying information identifying a particular basic service set (BSS) which may be associated with one or more STA information fields. Still further, in some implementations, an Extremely High Throughput (EHT) PPDU may include signaling to indicate whether the EHT PPDU is formatted as a sounding NDP.

公开(公告)号：US20250125935A1

公开(公告)日：2025-04-17

申请号：US18948212

申请日：2024-11-14

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN

IPC: H04L5/00 ,  H04W72/0446 ,  H04W80/02

Abstract: This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to trigger frame and physical layer convergence protocol (PLCP) protocol data unit (PPDU) designs that support distributed transmission. In some implementations, an access point (AP) may transmit a trigger frame soliciting a trigger-based (TB) PPDU from a wireless station (STA), where the trigger frame carries RU allocation information indicating a number (N) of tones allocated for the STA and carries tone distribution information indicating whether the N tones are allocated for a contiguous transmission or a distributed transmission. In some other implementations, an AP or a STA may transmit a PPDU carrying distributed signaling information indicating whether the PPDU is transmitted as a contiguous transmission or a distributed transmission.

公开(公告)号：US20250007659A1

公开(公告)日：2025-01-02

申请号：US18764008

申请日：2024-07-03

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Qifan CHEN ,  Youhan KIM

IPC: H04L5/00 ,  H04W52/28

Abstract: This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to LTF designs that support distributed transmissions. In some aspects, a transmitting device may obtain a sequence of values representing an LTF of a PPDU and may map the sequence of values to a number (N) of noncontiguous subcarrier indices of a plurality of subcarrier indices spanning a wireless channel according to a distributed tone plan. In some implementations, the transmitting device may modulate the sequence of values on N tones, representing a logical RU, and map the N tones to the N noncontiguous subcarrier indices, respectively. In some other implementations, the sequence of values may be obtained based on relative locations of the N noncontiguous subcarrier indices in the wireless channel.

公开(公告)号：US20240414756A1

公开(公告)日：2024-12-12

申请号：US18814342

申请日：2024-08-23

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li CHEN ,  Sameer VERMANI ,  Lin YANG ,  Bin TIAN ,  Vincent Knowles JONES, IV ,  Youhan KIM

IPC: H04W74/00 ,  H04L5/00 ,  H04L69/18 ,  H04L69/22 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/21 ,  H04W72/23 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, methods, devices and systems for including signaling regarding enhanced features of new wireless communication protocols. The signaling may be included in various portions of a physical layer preamble of a wireless transmission. In some implementations, the physical layer preamble may be used to indicate puncturing of subbands or content channels that may carry further signaling in accordance with preamble signaling designs of this disclosure. The physical layer preamble signaling be parallelized for different subchannels of a wireless channel that consists of multiple subchannels. Some implementations of the physical layer preambles may be used to multiplex different types of wireless local area network communications into different subsets of the plurality of subchannels of the wireless channel.

公开(公告)号：US20240372597A1

公开(公告)日：2024-11-07

申请号：US18773122

申请日：2024-07-15

Applicant: QUALCOMM Incorporated

Inventor： Kanke WU ,  Bin TIAN ,  Tevfik YUCEK ,  Lin YANG

IPC: H04B7/06 ,  H04L5/00

Abstract: This disclosure provides methods, devices and systems for improving wireless communications in power spectral density (PSD)-limited frequency bands. A wireless communication device, having a number (NTX) of transmit antennas, parses a physical layer (PHY) protocol data unit (PPDU) into a number (NSS) of spatial streams and modulates the NSS spatial streams on a number (M) of subcarriers. In some implementations, the wireless communication device may transmit the PPDU using a number (N) of the transmit antennas, where NSS≤N

公开(公告)号：US20240260114A1

公开(公告)日：2024-08-01

申请号：US18160285

申请日：2023-01-26

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Alecsander Petru EITAN ,  Youhan KIM

IPC: H04W76/19 ,  H04W74/08

CPC classification number: H04W76/19 ,  H04W74/0816

Abstract: This disclosure provides wireless communication methods, components, devices and systems for link recovery in wireless communication networks. Some aspects more specifically relate to the recovery of lost wireless communication links for which initial link establishment has been aided by communications over anchor links of different frequency bands than those of the lost wireless communication links. According to some aspects, a recovery mechanism can be implemented that enables involved devices to recover such “extension” links using communications over their associated frequency bands, without needing to revert to communication over their corresponding anchor links. In some examples, such a recovery mechanism can be implemented to enable recovery of a millimeter wave (mmWave) extension link of a non-standalone mmWave basic service set (BSS) without needing to revert to communication over a sub-7 GHz anchor link.

公开(公告)号：US20240172234A1

公开(公告)日：2024-05-23

申请号：US18426866

申请日：2024-01-30

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Dung Ngoc DOAN

IPC: H04W72/20 ,  H04J11/00 ,  H04W72/044

CPC classification number: H04W72/20 ,  H04J11/00 ,  H04W72/046

Abstract: This disclosure provides methods, devices and systems for amplitude shaping encoding, and specifically, for indicating boundaries in bitstreams encoded using amplitude shaping encoding. In some aspects, a transmitting device may insert, into an bitstream to indicate a boundary, a sequence of amplitude bits not associated with any patterns of bit values in a lookup table used for the encoding. In some other aspects, a transmitting device may monitor a length of the amplitude bits in a bitstream during the encoding and stop the encoding on information bits at an end of a current data unit responsive to the length reaching a threshold. In some other aspects, a transmitting device may monitor the length of the information bits and, for each data unit, determine whether a boundary is or would be reached. Responsive to determining that a boundary is or would be reached, the transmitting device may not include, before the boundary, any amplitude bits generated based on the information bits in the data unit, and instead add padding bits after a last amplitude bit before the boundary.

公开(公告)号：US20240171329A1

公开(公告)日：2024-05-23

申请号：US18425607

申请日：2024-01-29

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN

IPC: H04L5/00 ,  H04W72/0453

CPC classification number: H04L5/0044 ,  H04W72/0453 ,  H04L5/0007

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication. An example apparatus selects a first resource unit (RU) of a plurality of RUs for transmitting a physical (PHY) layer convergence protocol (PLCP) protocol data unit (PPDU) over a wireless medium. The first RU may include a set of contiguous tones occupying a first frequency bandwidth. The plurality of RUs may collectively span a second frequency bandwidth greater than the first frequency bandwidth. The apparatus maps the set of contiguous tones of the first RU to a set of non-contiguous tones distributed across the second frequency bandwidth using a tone mapping vector and a tone mapping offset associated with the first RU. The apparatus transmits the PPDU over the set of non-contiguous tones distributed across the second frequency bandwidth.

公开(公告)号：US20240163860A1

公开(公告)日：2024-05-16

申请号：US18423033

申请日：2024-01-25

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Dung Ngoc DOAN ,  Jialing Li CHEN ,  Didier Johannes Richard VAN NEE

IPC: H04W72/044 ,  H04L69/323

CPC classification number: H04W72/0466 ,  H04L69/323

Abstract: This disclosure provides methods, devices and systems for encoding data for wireless communication to achieve a desired amplitude distribution. Some implementations more specifically relate to performing an encoding operation to shape the amplitudes of the resultant symbols such that the amplitudes have a non-uniform distribution. In some implementations of the non-uniform distribution, the probabilities associated with the respective amplitudes generally increase with decreasing amplitude. Some implementations enable the tracking of MPDU boundaries to facilitate successful decoding by a receiving device. Additionally or alternatively, some implementations enable the determination of a packet length after performing the amplitude shaping, which enables a transmitting device to determine the number of padding bits to add to the payload and to signal the packet length to a receiving device so that the receiving device may determine the duration of the packet.

公开(公告)号：US20240031209A1

公开(公告)日：2024-01-25

申请号：US18480666

申请日：2023-10-04

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Youhan KIM ,  Jialing Li CHEN

IPC: H04L27/26

CPC classification number: H04L27/26025 ,  H04L27/2607 ,  H04L27/2628 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for increasing carrier frequencies for wireless communications in wireless local area networks (WLANs). Some implementations more specifically relate to packet designs and numerologies that support wireless communications on carrier frequencies above 7 GHz. In some aspects, a wireless communication device may up-clock a physical layer (PHY) convergence protocol (PLCP) protocol data unit (PPDU) for transmission on carrier frequencies above 7 GHz, where the PPDU conforms to an existing PPDU format associated with carrier frequencies below 7 GHz. As used herein, the term “up-clocking” refers to increasing the frequency of a clock signal used to convert the PPDU between the frequency domain and the time domain. In some aspects, the up-clocking may result in a subcarrier spacing (SCS) greater than or equal to 1.2 MHz, where the SCS represents a spacing between the subcarriers on which a PHY preamble of the PPDU is modulated.