公开(公告)号：US20250096932A1

公开(公告)日：2025-03-20

申请号：US18658764

申请日：2024-05-08

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li CHEN ,  Kanke WU ,  Sameer VERMANI ,  Bin TIAN ,  Youhan KIM ,  Qifan CHEN

IPC: H04L1/00 ,  H04W28/04

Abstract: This disclosure provides methods, components, devices and systems for managing long low-density parity check (LDPC) codewords in ultra high reliability (UHR) systems. One method for wireless communication may be performable at a transmitter device or node. The method may include transmitting signaling to a receiver device or node indicating that the transmitter device supports use of a first LDPC codeword length that is greater than or equal to a threshold LDPC codeword length. The method may further include transmitting an LDPC codeword of the first LDPC codeword length (e.g., a long LDPC codeword) to the receiver device when one or more conditions are satisfied.

公开(公告)号：US20250096929A1

公开(公告)日：2025-03-20

申请号：US18415437

申请日：2024-01-17

Applicant: QUALCOMM Incorporated

Inventor： Kanke WU ,  Sameer VERMANI ,  Bin TIAN

IPC: H04L1/00 ,  H04W28/04

Abstract: This disclosure provides methods, components, devices and systems for managing long low-density parity check (LDPC) codewords in ultra high reliability (UHR) systems. One method for wireless communication may be performable at a transmitter device or node. The method may include transmitting signaling to a receiver device or node indicating that the transmitter device supports use of a first LDPC codeword length that is greater than or equal to a threshold LDPC codeword length. The method may further include transmitting an LDPC codeword of the first LDPC codeword length (e.g., a long LDPC codeword) to the receiver device when one or more conditions are satisfied.

公开(公告)号：US20250063382A1

公开(公告)日：2025-02-20

申请号：US18936953

申请日：2024-11-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/28 ,  H04B7/0417 ,  H04B7/06

Abstract: This disclosure provides methods, devices and systems for increasing carrier frequencies for wireless communications in wireless local area networks. Some implementations more specifically relate to beamforming training operations that support wireless communications on carrier frequencies above 7 GHz. In some aspects, a beamforming initiator may initiate a beamforming training operation by transmitting a number (N) of beamforming training (BFT) packets in N TX beam directions, respectively, on a carrier frequency above 7 GHz. The beamforming responder receives one or more of the BFT packets and provides feedback to the beamforming initiator indicating the TX beam direction associated with the BFT packet having the highest received signal power. In some aspects, the beamforming responder may train its RX antennas for RX beamforming concurrently while the beamforming initiator trains its TX antennas. In some other aspects, the beamforming responder may train its RX antennas after the beamforming initiator trains its TX antennas.

公开(公告)号：US20250030503A1

公开(公告)日：2025-01-23

申请号：US18356141

申请日：2023-07-20

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li CHEN ,  Lin YANG ,  Bin TIAN

IPC: H04L1/1607 ,  H04L5/00 ,  H04W72/12

Abstract: This disclosure provides methods, components, devices and systems for partial bandwidth feedback for 480 and 640 MHz transmission in Wi-Fi. Some aspects more specifically relate to the inclusion of a partial bandwidth information field in a null data packet (NDP) announcement frame that indicates for which frequency portions of the 480 or 640 MHz channel bandwidth to generate channel information feedback. In some examples, a receiving device (for example, a station (STA)) may perform channel estimation on an NDP and transmit a beamforming report to the transmitting device (for example, an access point (AP)) based on the NDP. The transmitting device schedules the NDP using an NDP announcement frame, which includes the partial bandwidth information field. The partial bandwidth information field in the NDP announcement frame may include a frequency resolution field and a bitmap with values and lengths based on the channel bandwidth being 480 or 640 MHz.

公开(公告)号：US20240348363A1

公开(公告)日：2024-10-17

申请号：US18633126

申请日：2024-04-11

Applicant: QUALCOMM Incorporated

Inventor： Sameer VERMANI ,  Bin TIAN ,  Youhan KIM ,  Jialing Li CHEN

IPC: H04L1/00 ,  H04W80/02

CPC classification number: H04L1/0036 ,  H04L1/0013 ,  H04W80/02

Abstract: This disclosure provides methods, devices and systems for interpreting reserved bits and values associated with different releases of a wireless communication protocol. In some implementations, a wireless communication device may determine whether to terminate or continue reception of a physical layer protocol convergence protocol (PLCP) protocol data unit (PPDU) if it detects a reserved bit in the physical layer preamble set to an unsupported value (such as a value different than what is defined by a version or release of the wireless communication protocol supported by the wireless communication device). In some other implementations, a wireless communication device may determine whether to terminate or continue reception of a PPDU if it detects a field in the physical layer preamble set to a reserved value (such as defined by a version or release of the wireless communication protocol supported by the wireless communication device).

公开(公告)号：US20240297703A1

公开(公告)日：2024-09-05

申请号：US18434611

申请日：2024-02-06

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：US20240236859A1

公开(公告)日：2024-07-11

申请号：US18417694

申请日：2024-01-19

Applicant: QUALCOMM Incorporated

Inventor： Alfred ASTERJADHI ,  George CHERIAN ,  Abhishek Pramod PATIL ,  Bin TIAN

IPC: H04W52/02 ,  H04W74/0816

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：US20240187192A1

公开(公告)日：2024-06-06

申请号：US18541388

申请日：2023-12-15

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay SHELLHAMMER ,  Bin TIAN ,  Alireza RAISSINIA ,  Simone MERLIN

IPC: H04L5/00 ,  H04B17/318

CPC classification number: H04L5/0053 ,  H04B17/318

Abstract: Methods, systems, and devices for wireless communications are described. A station (STA) may receive a null data packet (NDP) on a plurality of subcarriers, and the STA may generate a channel state information (CSI) matrix for each subcarrier of the plurality of subcarriers. After generating a CSI matrix for a subcarrier, such as at least one subcarrier, the STA may scale each value in the CSI matrix using a power-of-two value to minimize complexity. Specifically, instead of scaling each value in the CSI matrix to a value between zero and one using divisions (for example, which may be computationally expensive), the STA may use shifting to scale each value in the CSI matrix. The STA may then quantize the scaled values in the CSI matrix for reporting, and the STA may transmit the quantized, scaled values in the CSI matrix in a CSI report.

公开(公告)号：US20240171339A1

公开(公告)日：2024-05-23

申请号：US18531411

申请日：2023-12-06

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN

IPC: H04L5/00 ,  H04W72/0453 ,  H04W72/1263

CPC classification number: H04L5/0048 ,  H04W72/0453 ,  H04W72/1263

Abstract: This disclosure provides methods, devices and systems for configuring tones for a distributed resource unit (RU) across a channel bandwidth to improve frequency diversity and available transmit power. A distributed RU may include a set of tones that may be allocated across a bandwidth that is greater than a bandwidth of the aggregate quantity of tones. The set of tones may include a set of data tones grouped into contiguous groups of one or more data tones and a set of non-contiguous pilot tones. The data tones may be mapped to useful tones over a center portion of a half-bandwidth of the channel. The pilot tones may be mapped near edge tones at edges of the channel bandwidth or near direct current tones at a center of the channel bandwidth. A system bandwidth may include one or more channel bandwidths associated with distributed RUs.

公开(公告)号：US20240048205A1

公开(公告)日：2024-02-08

申请号：US18452430

申请日：2023-08-18

Applicant: QUALCOMM Incorporated

Inventor： Simone MERLIN ,  Alireza RAISSINIA ,  Bin TIAN ,  Xiaoxin ZHANG ,  Solomon TRAININ ,  Assaf Yaakov KASHER ,  Manish MADAN ,  John GRESZCZUK

IPC: H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04W74/08 ,  H04W80/02

CPC classification number: H04B7/0626 ,  H04B7/0617 ,  H04L5/0053 ,  H04L25/0226 ,  H04W74/0816 ,  H04W80/02

Abstract: This disclosure provides methods, devices and systems for radio frequency (RF) sensing in wireless communication systems. In some implementations, a transmitter device transmits sounding sequences configured for channel estimation over a wireless channel to a receiver device. The transmitter device also transmits or receives non-sounding frames associated with a channel report of the receiver device. The transmitter device transmits a frame soliciting the channel report from the receiver device. The transmitter device receives the channel report, which may include channel state information (CSI) of the wireless channel responsive to at least the sounding sequences. Some types of channel reports may take longer to generate than other types of channel reports. Transmitting or receiving the non-sounding frames during the time period may prevent other devices from accessing the wireless channel when the receiver device needs additional time to generate a certain type of channel report.