公开(公告)号：US20250007541A1

公开(公告)日：2025-01-02

申请号：US18884974

申请日：2024-09-13

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li CHEN ,  Lin YANG ,  Bin TIAN

IPC: H04B1/04

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：US20240430727A1

公开(公告)日：2024-12-26

申请号：US18706175

申请日：2022-04-06

Applicant: QUALCOMM Incorporated

Inventor： Pooria PAKROOH ,  Stephen Jay SHELLHAMMER ,  Bin TIAN ,  Ishaque Ashar KADAMPOT ,  Koorosh AKHAVAN ,  Le Nguyen LUONG ,  Alexandros MANOLAKOS ,  Varun Amar REDDY

IPC: H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an initiating device may transmit a signal that includes multiple packets. The initiating device may receive, from a responding device, a channel impulse response (CIR) report for each packet of the multiple packets. The initiating device may align, using one or more taps in the CIR report for each packet, the CIR reports across the multiple packets to identify a target object, a location of the target object, or a movement of the target object. The initiating device may perform an action based at least in part on the target object, the location of the target object, or the movement of the target object. Numerous other aspects are described.

公开(公告)号：US20240380641A1

公开(公告)日：2024-11-14

申请号：US18499972

申请日：2023-11-01

Applicant: QUALCOMM Incorporated

Inventor： Pooria PAKROOH ,  Bin TIAN ,  Stephen Jay SHELLHAMMER ,  Le Nguyen LUONG ,  Koorosh AKHAVAN

IPC: H04L25/02 ,  H04W24/10 ,  H04W76/10

Abstract: This disclosure provides methods, components, devices and systems for radio frequency sensing control for an ultra-wideband system. Some aspects more specifically relate to setting up one or more sensing instances (sensing rounds) for one or more respective sensing operations. In some implementations, a first wireless device (for example a controller, an initiator) may transmit a sensing session setup request frame that indicates a set of parameters for the one or more sensing instances. For each of the sensing instances, the first wireless device may transmit a sensing control information element that includes at least a common sensing control configuration and a channel impulse response report configuration. The first wireless device may participate in the sensing operations with at least a second wireless device (for example one or more responders or controlees) during the respective sensing instances.

公开(公告)号：US20240259243A1

公开(公告)日：2024-08-01

申请号：US18532755

申请日：2023-12-07

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Youhan KIM

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

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：US20240250788A1

公开(公告)日：2024-07-25

申请号：US18626144

申请日：2024-04-03

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W52/18

CPC classification number: H04L5/0048 ,  H04W52/18

Abstract: This disclosure provides methods, devices and systems for distributed transmission of short training fields in a power spectral density limited frequency band. In one aspect, a device receives a distributed resource unit (dRU) assignment for transmission of a dRU portion of a physical layer protocol data unit (PPDU); determines a spatial stream global cyclic shift delay (CSD) index for an short training field (STF) of the dRU portion of the PPDU; and transmits, based on the spatial stream global CSD index, the EHT of the dRU portion of the PPDU across a dRU spreading bandwidth associated with the dRU assignment using a tone plan and sequence corresponding to a regular resource unit (rRU) transmission mode.

公开(公告)号：US20240187157A1

公开(公告)日：2024-06-06

申请号：US18448033

申请日：2023-08-10

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Sameer VERMANI

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

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：US20240146355A1

公开(公告)日：2024-05-02

申请号：US18362127

申请日：2023-07-31

Applicant: QUALCOMM Incorporated

Inventor： Pooria PAKROOH ,  Kanke WU ,  Stephen Jay SHELLHAMMER ,  Bin TIAN

IPC: H04B1/7163 ,  H03M13/25

CPC classification number: H04B1/71635 ,  H03M13/255

Abstract: In some implementations, a transmitting UWB device may determine a number of information bits of a payload to communicate via UWB. The transmitting UWB device may select, based on the number of information bits, a codeword length from a selection of available codeword lengths with which to encode the payload using a low-density parity-check (LDPC) encoding scheme, wherein the selection of available codeword lengths include a first codeword length, a second codeword length, and a third codeword length, wherein the third codeword length is longer than the second codeword length, which is longer than the first codeword length. The transmitting UWB device may transmit the payload using one or more codewords having the selected codeword length.

公开(公告)号：US20240089865A1

公开(公告)日：2024-03-14

申请号：US18454881

申请日：2023-08-24

Applicant: QUALCOMM Incorporated

Inventor： Arjun BHARADWAJ ,  Rahul TANDRA ,  Bin TIAN ,  Youhan KIM ,  Simone MERLIN ,  George CHERIAN

IPC: H04W52/24 ,  H04B7/0452 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26 ,  H04W52/14 ,  H04W52/22

CPC classification number: H04W52/242 ,  H04B7/0452 ,  H04L1/0009 ,  H04L5/0053 ,  H04L27/2601 ,  H04W52/143 ,  H04W52/146 ,  H04W52/228 ,  H04W52/367

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmissions received at the apparatus, to determine uplink power control information based on the determined target receiver power level for UL MU-MIMO transmission or UL OFDMA transmission, and to transmit a frame that includes the determined uplink power control information to a station scheduled by the apparatus for uplink transmission.

公开(公告)号：US20230412349A1

公开(公告)日：2023-12-21

申请号：US18302678

申请日：2023-04-18

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN

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

CPC classification number: H04L5/0094 ,  H04L5/0039 ,  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：US20230291631A1

公开(公告)日：2023-09-14

申请号：US18173612

申请日：2023-02-23

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li CHEN ,  Kanke WU ,  Bin TIAN

IPC: H04L27/28 ,  H04L1/00 ,  H04L27/20

CPC classification number: H04L27/28 ,  H04L1/0003 ,  H04L27/2007

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 tone mapping techniques and packet designs that support duplicate (or “DUP mode”) transmissions to multiple users. In some implementations, an access point (AP) may transmit a PPDU that includes first user data and second user data, where at least the first user data is transmitted in a DUP mode. As such, the first user data may be mapped to a number (N) of tones spanning a first RU in accordance with a dual carrier modulation (DCM) scheme, and a duplicate copy of the first user data may be mapped to N tones spanning a second RU in accordance with the DCM scheme. In some implementations, the second user data also may be transmitted in a DUP mode.