公开(公告)号：US12096492B2

公开(公告)日：2024-09-17

申请号：US18153144

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.

公开(公告)号：US12096267B2

公开(公告)日：2024-09-17

申请号：US18304310

申请日：2023-04-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/06 ,  H04W28/02

CPC classification number: H04W28/0231 ,  H04W28/06

Abstract: This disclosure provides methods, devices and systems for generating packet preambles. Some implementations more specifically relate to preamble designs for special cases such as, for example, full-bandwidth multi-user multiple-input multiple-output (MU-MIMO), single-user (SU) preamble puncturing, hybrid automatic repeat request (HARD), and multi-AP coordination. Multi-AP coordination may refer to coordinated beamforming (CoBF), joint transmission (JT), or coordinated orthogonal frequency division multiple access (C-OFDMA). Additionally, or alternatively, some implementations more specifically relate to preamble designs that accommodate signal fields of different cases.

公开(公告)号：US12081469B2

公开(公告)日：2024-09-03

申请号：US17209132

申请日：2021-03-22

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Sameer Vermani ,  Jialing Li Chen

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04L5/0044 ,  H04W72/04 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, methods, devices and systems for generating or receiving a wireless packet that includes a first preamble based on a first generation of a wireless communication protocol and a second preamble based on a second generation of the wireless communication protocol. The wireless packet may include the first preamble in a first subchannel of a wireless channel and the second preamble in a second subchannel of the wireless channel. Thus, the wireless packet may concurrently include communication to or from different types of wireless stations that support the different generations of a wireless communication protocol.

公开(公告)号：US12081261B2

公开(公告)日：2024-09-03

申请号：US17960056

申请日：2022-10-04

Applicant: QUALCOMM Incorporated

Inventor： Pooria Pakrooh ,  Bin Tian ,  Stephen Jay Shellhammer ,  Le Nguyen Luong ,  Koorosh Akhavan

IPC: H04B1/71 ,  H04B1/7183

CPC classification number: H04B1/7183

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may transmit, to a second wireless communication device, a time and/or frequency synchronization message using a first radio frequency (RF) technology, wherein the time and/or frequency synchronization message is used to obtain synchronization information for a second RF technology. The first wireless communication device may transmit, to the second wireless communication device, a first set of ranging measurement signals associated with the second RF technology. The first wireless communication device may receive, from the second wireless communication device, a second set of ranging measurement signals associated with the second RF technology. Numerous other aspects are described.

公开(公告)号：US12052081B2

公开(公告)日：2024-07-30

申请号：US17820006

申请日：2022-08-16

Applicant: QUALCOMM Incorporated

Inventor： Kanke Wu ,  Bin Tian ,  Tevfik Yucek ,  Lin Yang

IPC: H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0691 ,  H04L5/0098

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：US20240223308A1

公开(公告)日：2024-07-04

申请号：US18145844

申请日：2022-12-22

Applicant: QUALCOMM Incorporated

Inventor： Kanke Wu ,  Bin Tian ,  Lin Yang

IPC: H04L1/00 ,  H03M13/11

CPC classification number: H04L1/0063 ,  H03M13/1102 ,  H04L1/0057

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device, such as a wireless station (STA) or a wireless access point (AP), may perform a low-density parity check (LDPC) coding operation on input bits of a set of code blocks. Performing the LDPC coding operation on the input bits may produce a set of codewords including one or more codewords having a first codeword length and one or more codewords having a second, shorter codeword length. The first wireless device may arrange the set of codewords into a set of symbols such that a last symbol in time of the set of symbols includes the one or more codewords each having the second codeword length and no codewords having the first codeword length. The first wireless device may transmit, to a second wireless device, the plurality of symbols.

公开(公告)号：US11924812B2

公开(公告)日：2024-03-05

申请号：US17382585

申请日：2021-07-22

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：US11917547B2

公开(公告)日：2024-02-27

申请号：US18069153

申请日：2022-12-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04W74/08

CPC classification number: H04W52/0245 ,  H04W74/0816

Abstract: Certain aspects of the present disclosure provide an apparatus for wireless communications. The apparatus generally includes a processing system configured to generate a frame for triggering transmission of a plurality of data units from a plurality of wireless nodes, a first interface configured to output the frame for transmission to the plurality of wireless nodes, and a second interface configured to obtain the plurality of data units after outputting the frame for transmission, wherein the plurality of data units have different lengths.

公开(公告)号：US20240056996A1

公开(公告)日：2024-02-15

申请号：US18492594

申请日：2023-10-23

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Bin Tian ,  Sameer Vermani ,  Lin Yang

IPC: H04W56/00 ,  H04J3/06 ,  H04L27/26 ,  H04L5/00 ,  H04L69/28

CPC classification number: H04W56/001 ,  H04J3/067 ,  H04L27/2605 ,  H04L5/0044 ,  H04L69/28 ,  H04L27/2602 ,  H04L27/2613 ,  H04W88/08

Abstract: This disclosure provides systems, methods, apparatus, including computer programs encoded on computer storage media for orthogonal multiplexing of high efficiency (HE) and extremely high throughput (EHT) wireless traffic. Devices in a wireless local area network (WLAN) may operate under HE or EHT conditions. An access point (AP) may support both HE and EHT communications with WLAN devices. To enable substantially simultaneous downlink HE and EHT transmissions and substantially simultaneous uplink HE and EHT transmissions, the AP may support orthogonal frequency-division multiple access (OFDMA) of HE and EHT transmissions. For example, pre-HE and pre-EHT modulated fields, HE and EHT modulated fields, and payloads may be aligned in time for the HE and EHT transmissions. The AP may ensure orthogonality for multiplexing the HE and EHT transmissions based on the alignment. In some implementations, a trigger frame may be utilized to indicate uplink transmission alignments.

公开(公告)号：US11894929B2

公开(公告)日：2024-02-06

申请号：US17946666

申请日：2022-09-16

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: H04L5/00 ,  H04L1/1812 ,  H04W74/08 ,  H04L1/1607 ,  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 determine whether a first feedback message received from the second WLAN device includes HARQ acknowledgement information or non-HARQ acknowledgment information. The first feedback message may be a HARQ Block Acknowledgement (H-BA) message having a multi-station Block ACK (M-BA) frame format that includes HARQ acknowledgment information. The first WLAN device may transmit a second HARQ frame to the second WLAN device in response to determining the first feedback message includes the HARQ acknowledgment information. The first WLAN device may transmit a non-HARQ frame in response to determining the first feedback message includes non-HARQ acknowledgement information.