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：US20240163059A1

公开(公告)日：2024-05-16

申请号：US18054531

申请日：2022-11-10

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Alireza Raissinia ,  Yanjun Sun

IPC: H04L5/00 ,  H03M13/00 ,  H04L69/22

CPC classification number: H04L5/0053 ,  H03M13/6312 ,  H04L5/0064 ,  H04L69/22

Abstract: This disclosure provides methods, components, devices and systems for ranging measurement procedures between two wireless devices that communicate in wide bandwidth networks. Some aspects more specifically relate to null data packet (NDP) transmissions via a 320 megahertz (MHz) bandwidth. In some examples, a first wireless device and a second wireless device may participate in a ranging measurement procedure and may exchange one or more NDPs to facilitate distance measurements and one or both of the first wireless device and the second wireless device may indicate that an associated protocol data unit (PDU) is a 320 MHz ranging NDP (e.g., an NDP of a ranging variant associated with a bandwidth of 320 MHz) via one or more bits of the preamble of the PDU. The one or more bits may be included in a universal signal (U-SIG) field of the preamble of the PDU.

公开(公告)号：US11929812B2

公开(公告)日：2024-03-12

申请号：US16579471

申请日：2019-09-23

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Jialing Li Chen ,  Sameer Vermani

IPC: H04B7/06 ,  H04B7/0417 ,  H04L25/02

CPC classification number: H04B7/066 ,  H04B7/0417 ,  H04L25/0204 ,  H04L25/0228

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for techniques for reducing feedback information in an extremely high throughput (EHT) wireless local area network (WLAN). A receiving device (beamformee), such as a station (STA), may receive a sounding signal from a transmitting device (beamformer), such as an access point (AP), and transmit channel feedback. The receiving device may transmit the channel feedback as part of a reduced compressed beamforming feedback (CBF) operation that includes determining a first set of channel characteristics. The receiving device may select a subset of the first set of channel characteristics and determine a set of differential characteristics based on the subset. The transmitting device may then transmit the sets of characteristics as reduced CBF to the transmitting device. The transmitting device may determine a channel estimation for beamformed signaling based on the reduced CBF.

公开(公告)号：US11916676B2

公开(公告)日：2024-02-27

申请号：US16917543

申请日：2020-06-30

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Lochan Verma ,  Jialing Li Chen ,  Stephen Jay Shellhammer ,  Dung Ngoc Doan ,  Bin Tian

IPC: H04L1/1812 ,  H04L1/1607 ,  H04L5/00 ,  H04W80/02 ,  H04W84/12

CPC classification number: H04L1/1812 ,  H04L1/1614 ,  H04L1/1621 ,  H04L1/1819 ,  H04L5/0055 ,  H04W74/0816 ,  H04W80/02 ,  H04W84/12

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a hybrid automatic repeat request (HARQ) protocol in a wireless local area network (WLAN). In some aspects, a first WLAN device may transmit a first HARQ frame to a second WLAN device. The first WLAN device may receive a first feedback message from the second WLAN device. The first feedback message may be a HARQ Block Acknowledgement (H-BA) message. The first WLAN device may determine to enable the HARQ protocol based on the first feedback message. The first WLAN device may receive an indication of an amount of memory available at the second WLAN device for processing HARQ transmissions. The first WLAN device may transmit a second HARQ frame to the second WLAN device based, at least in part, on the amount of memory available at the second WLAN device for processing HARQ transmissions.

公开(公告)号：US11843491B2

公开(公告)日：2023-12-12

申请号：US17190216

申请日：2021-03-02

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Youhan Kim

IPC: H04L27/26 ,  H04L5/00 ,  H04L1/00

CPC classification number: H04L27/2603 ,  H04L1/0068 ,  H04L5/0048 ,  H04L5/0094 ,  H04L27/2613

Abstract: This disclosure provides methods, devices and systems that support communicating using orthogonal frequency division multiple access (OFDMA) according to a tone plan that supports 20 MHz subchannel puncturing within a wireless channel. In some aspects, a non-legacy tone plan may define a set of tones for a resource unit (RU) such that the RU does not overlap a 20 MHz subchannel boundary of the wireless channel. The locations of the set of tones in the non-legacy tone plan may be shifted relative to corresponding tones associated with a corresponding RU according to a legacy tone plan. One or more of the disclosed tone plans may enable puncturing of subchannels while making use of some RUs that would otherwise partially overlap a punctured subchannel in the legacy tone plan.

公开(公告)号：US11838227B2

公开(公告)日：2023-12-05

申请号：US17390828

申请日：2021-07-30

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Youhan Kim ,  Qifan Chen

IPC: H04L5/00

CPC classification number: H04L5/0044 ,  H04L5/0048

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 pilot tone designs that support distributed transmission. A transmitting device may modulate a physical layer convergence protocol (PLCP) protocol data unit (PPDU) on a number (M) of tones representing a logical RU associated with the legacy tone plan and may further map the M tones to M noncontiguous subcarrier indices associated with a wireless channel. The transmitting device may transmit the PPDU, over the wireless channel, with a number (N) of pilot tones each having a respective location relative to the M tones as mapped to the M noncontiguous subcarrier indices. In some implementations, the relative locations of the N pilot tones may be different than relative locations of a number (K) of pilot tones associated with the logical RU.

公开(公告)号：US11758562B2

公开(公告)日：2023-09-12

申请号：US17503677

申请日：2021-10-18

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Bin Tian

IPC: H04W72/04 ,  H04W72/51 ,  H04W72/23 ,  H04W84/12

CPC classification number: H04W72/51 ,  H04W72/23 ,  H04W84/12

Abstract: This disclosure provides methods, devices, and techniques to indicate operations by extremely high throughput (EHT) devices on an operating bandwidth, including devices in a basic service set (BSS) supporting the use of a 320 MHz channel. In some aspects, the supported functionality may include extensions to flexibility and support rules, structures, and signaling using legacy fields, frames, and features. In addition, the supported functionality may include channel sensing and reporting, such as per-channel network allocation vectors (NAVs) for the sub-channels of the operating bandwidth. A device may identify an operating mode for an operating bandwidth and determine a value for a bandwidth query report (BQR) or a target wake time (TWT) element. The device may check multiple NAVs for sub-channels of the operating bandwidth. The operating bandwidth may span concurrent operations on traditional Wi-Fi frequency bands including the 2.4 and 5 GHz bands as well as the 6 GHz band.

公开(公告)号：US11751063B2

公开(公告)日：2023-09-05

申请号：US16928917

申请日：2020-07-14

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Bin Tian ,  Jialing Li Chen ,  Lin Yang

IPC: H04W4/00 ,  H04W16/10 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04W84/10 ,  H04W72/0446

CPC classification number: H04W16/10 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  H04W72/0446 ,  H04W84/10

Abstract: Certain aspects relate to methods and apparatus for wireless communication. The apparatus generally includes a processing system configured to generate a first frame including an indication of unused resources in a first basic service set (BSS) available to be shared with one or more wireless nodes in one or more second BSSs. The apparatus also includes a first interface configured to output the first frame for transmission to the one or more wireless nodes.

公开(公告)号：US11728942B2

公开(公告)日：2023-08-15

申请号：US16803627

申请日：2020-02-27

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Sameer Vermani

IPC: H04L5/00 ,  H04W72/044 ,  H04W80/08 ,  H04W72/0453 ,  H04W80/02 ,  H04L1/00 ,  H04L27/26

CPC classification number: H04L5/0044 ,  H04L1/0013 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2605 ,  H04W72/0453 ,  H04W72/0466 ,  H04W80/02 ,  H04W80/08 ,  H04L27/2603

Abstract: This disclosure provides methods, devices and systems for data parsing for resource unit (RU) aggregation. A wireless communication device (such as an access point (AP) or a station (STA)) may allocate a set of RUs for a receiving device in a basic service set (BSS). The set of RUs may be associated with multiple bandwidth segments of a bandwidth allocation and may be non-contiguous or contiguous. The wireless communication device may determine a data parsing and encoding scheme for a set of information bits. The data parsing may be implemented at a medium access control (MAC) layer or physical (PHY) layer and the encoding may correspond to a joint encoding or a separate encoding for each RU of the allocation. The wireless communication device may then distribute the coded bits to the set of RUs for transmission.

公开(公告)号：US20230171818A1

公开(公告)日：2023-06-01

申请号：US18153159

申请日：2023-01-11

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Alfred Asterjadhi ,  Bin Tian ,  Stephen Jay Shellhammer

IPC: H04W74/08 ,  H04W4/90 ,  H04W12/06 ,  H04W48/06

CPC classification number: H04W74/0875 ,  H04W4/90 ,  H04W12/06 ,  H04W48/06

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for priority access on a shared wireless channel. A priority station (STA), an access point (AP), or a network operator may activate a priority access service. The priority access service provides priority access to authorize priority STAs by allowing them to use more aggressive contention parameters for contention-based access of the wireless channel as compared to other STAs. In some implementations, non-priority STAs may be configured with weakened contention parameters to increase or ensure the likelihood that a priority STA will win contention for access to the wireless channel.