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：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：US20240235582A1

公开(公告)日：2024-07-11

申请号：US18153325

申请日：2023-01-11

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li CHEN ,  Lin Yang ,  Bin Tian

IPC: H04B1/04

CPC classification number: H04B1/04 ,  H04B2001/0491

Abstract: This disclosure provides wireless communication methods, components, devices and systems for applying spectral masks and spectral flatness parameters in conjunction with transmission of millimeter wave (mmWave) signals in wireless communication networks. In some examples, in conjunction with transmission of an mmWave signal, a wireless communication device can apply a derivative spectral mask featuring transitional offset ranges that correspond to transitional frequency offset ranges of a spectral mask for a nominal carrier signal, scaled according to a ratio between a bandwidth of the mmWave signal and a bandwidth of the nominal carrier signal. In some examples, the derivative spectral mask can feature an in-band frequency offset range that is wider than a scaled width of an in-band frequency offset range of the spectral mask for the nominal carrier signal.

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.

公开(公告)号：US20210266204A1

公开(公告)日：2021-08-26

申请号：US17176517

申请日：2021-02-16

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li CHEN ,  Bin TIAN ,  Lin YANG

IPC: H04L25/03

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication that can be used to reduce the peak-to-average power ratio (PAPR) of data transmissions by increasing the degree of randomness with which data is scrambled for transmission over a wireless medium. In some implementations, a transmitting device may determine a set of scrambling initialization bits, and may generate a scrambling sequence based on the set of scrambling initialization bits and an 11th-order polynomial. The transmitting device may provide an indication of the set of scrambling initialization bits in a physical layer convergence protocol (PLCP) protocol data unit (PPDU). The transmitting device may scramble one or more portions of the PPDU based on the scrambling sequence. The transmitting device may transmit the PPDU over a wireless medium. In some instances, the set of scrambling initialization bits consists of 11 bits, and may be included in a Service field of the PPDU.

公开(公告)号：US20240430052A1

公开(公告)日：2024-12-26

申请号：US18740815

申请日：2024-06-12

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li CHEN ,  Lin YANG ,  Bin TIAN

IPC: H04L5/00 ,  H04L1/00 ,  H04W74/0816

Abstract: This disclosure provides methods, components, devices and systems for 480 and 640 megahertz (MHz) transmission in Wi-Fi. Some aspects more specifically relate to inclusion of a bandwidth field and a bandwidth extension field in a preamble of a physical layer protocol data unit (PPDU) that jointly indicate that the channel bandwidth of the PPDU is a contiguous 480 MHz channel bandwidth or a 640 MHz channel bandwidth. In some aspects, parameters of the PPDU may be defined based on the PPDU occupying a 480 MHz or 640 MHz bandwidth. For example, the parameters may include tone plans, allowed puncturing patterns, signaling of the puncturing plans, signaling of the resource unit allocation, a short training field, a long training field, pilot signal sequences, phase shifts, a segment parser, and/or a spectral mask.

公开(公告)号：US20240214996A1

公开(公告)日：2024-06-27

申请号：US18428834

申请日：2024-01-31

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay SHELLHAMMER ,  Sameer VERMANI ,  Jialing Li CHEN ,  Bin TIAN ,  Alfred ASTERJADHI ,  Yanjun SUN

IPC: H04W72/044 ,  H04L69/22 ,  H04W72/51 ,  H04W84/12

CPC classification number: H04W72/044 ,  H04L69/22 ,  H04W72/51 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for generating enhanced trigger frames. Some implementations more specifically relate to trigger frame designs that support gains in data throughput achievable in accordance with the IEEE 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, an enhanced trigger frame may be used to solicit a non-legacy trigger-based (TB) physical layer protocol convergence protocol (PLCP) protocol data unit (PPDU) from one or more wireless stations (STAs). In some implementations, the enhanced trigger frame may be configurable to support multiple versions of the IEEE 802.11 standard. For example, an enhanced trigger frame may be configured in accordance with a legacy trigger frame format or a non-legacy trigger frame format. Thus, when configured in accordance with the legacy trigger frame format, the enhanced trigger frame can also be used to a legacy TB PPDU from one or more STAs.

公开(公告)号：US20240080690A1

公开(公告)日：2024-03-07

申请号：US18465804

申请日：2023-09-12

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Stephen Jay SHELLHAMMER ,  Dung Ngoc DOAN ,  Sameer VERMANI ,  Jialing Li CHEN

IPC: H04W24/08 ,  H04L27/26

CPC classification number: H04W24/08 ,  H04L27/2627 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for link adaptation in wireless communications. Some implementations more specifically relate to transmitter-based modulation and coding scheme (MCS) selection. A transmitting device transmits a test packet, over a wireless channel, to a receiving device. The receiving device generates one or more signal-to-interference-plus-noise ratio (SINR) estimates for the wireless channel based on the received sounding packet. In some aspects, each SINR estimate may be associated with a particular modulation order. In some other aspects, each SINR estimate may be generated based on a transmitter configuration or a receiver type to be used for subsequent communications between the transmitting device and the receiving device. The receiving device transmits feedback, including the SINR estimates, to the transmitting device. The transmitting device then selects an MCS to be used for subsequent communications with the receiving device based on the SINR estimates and associated modulation orders.

公开(公告)号：US20230388986A1

公开(公告)日：2023-11-30

申请号：US17828085

申请日：2022-05-31

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W72/0453 ,  H04L5/0044 ,  H04L5/0078 ,  H04L27/2602

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 that support wireless communications on carrier frequencies above 7 GHz. In some aspects, a wireless communication device may map a physical layer convergence protocol (PLCP) protocol data unit (PPDU) to orthogonal subcarriers according to existing tone plans associated with carrier frequencies below 7 GHz and may up-clock the PPDU for transmission on carrier frequencies above 7 GHz (such as by increasing the frequency of a clock signal used to convert the PPDU between the frequency domain and the time domain). In some implementations, the PPDU may conform to an existing PPDU format designed for sub-7 GHz wireless communications. In some other implementations, the PPDU may conform to a “green field” PPDU format optimized for wireless communications on carrier frequencies above 7 GHz.