公开(公告)号：US20230422092A1

公开(公告)日：2023-12-28

申请号：US18316543

申请日：2023-05-12

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay SHELLHAMMER ,  Bin TIAN

IPC: H04W28/06 ,  H04W28/02 ,  H04W72/0453 ,  H04W80/02

CPC classification number: H04W28/06 ,  H04W80/02 ,  H04W72/0453 ,  H04W28/0268

Abstract: This disclosure provides methods, devices and systems for soliciting trigger-based (TB) physical layer protocol convergence protocol (PLCP) protocol data units (PPDUs). Some implementations more specifically relate to trigger frame and PPDU designs that support RU downsizing. For example, an access point (AP) may transmit a trigger frame soliciting a TB PPDU from a wireless station (STA). In some aspects, the trigger frame may carry RU allocation information indicating the allocated RU or MRU (associated with a wireless medium) and downsizing information indicating whether downsizing of the RU or MRU is permitted. If interference is detected in a portion of the wireless medium, and downsizing is permitted, the STA may transmit the TB PPDU on a downsized RU or MRU. The downsized RU or MRU includes a subset of the tones in the RU or MRU allocated by the trigger frame.

公开(公告)号：US20230422078A1

公开(公告)日：2023-12-28

申请号：US18463197

申请日：2023-09-07

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li CHEN ,  Sameer VERMANI ,  Bin TIAN ,  Lin YANG

IPC: H04W28/02 ,  H04W28/06

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 (HARQ), 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：US20230388044A1

公开(公告)日：2023-11-30

申请号：US17804479

申请日：2022-05-27

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Bin TIAN ,  Jing SUN ,  Junyi LI

IPC: H04L1/00 ,  H04L27/26 ,  H04L25/03 ,  H04L27/36

CPC classification number: H04L1/0003 ,  H04L27/2605 ,  H04L25/03159 ,  H04L27/36

Abstract: Aspects presented herein may improve communications at high bandwidth or coverage limited scenarios, which may specify high transceiver energy efficiency and robustness to non-linear power amplifiers. In one aspect, a first network node transmits first information indicative of at least one of a modulation scheme or a modulation parameter to a second network node, where the modulation scheme is from a set of modulation schemes and the modulation parameter is associated with the modulation scheme, and where the set of modulation schemes includes one or more of: APSK, QAM, CPM, ceCPM, or MACPM. The first network node, from the second network node, second information indicative of at least one of the modulation scheme or the modulation parameter associated with the modulation scheme for at least one transmission.

公开(公告)号：US20230361809A1

公开(公告)日：2023-11-09

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: H04B1/7183

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：US20230354046A1

公开(公告)日：2023-11-02

申请号：US18350904

申请日：2023-07-12

Applicant: QUALCOMM Incorporated

Inventor： Sameer VERMANI ,  Bin TIAN ,  Jialing Li CHEN ,  Lin YANG

IPC: H04W16/10 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06

CPC classification number: H04W16/10 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  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：US20230344690A1

公开(公告)日：2023-10-26

申请号：US17727634

申请日：2022-04-22

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26

CPC classification number: H04L27/26025 ,  H04L27/2628 ,  H04L27/2607 ,  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：US20230336388A1

公开(公告)日：2023-10-19

申请号：US18182288

申请日：2023-03-10

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26

CPC classification number: H04L27/2603 ,  H04L27/2621 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, for generating or receiving a multi-generation physical layer protocol data unit (PPDU). The multi-generation PPDU may concurrently include a first generation-specific preamble based on a first generation of a wireless communication specification (such as that defined by the Institute of Electrical and Electronics Engineers (IEEE) 802.11 family of standards) and a second generation-specific preamble based on a second generation of the wireless communication specification in a same transmission. The generation-specific preambles may be generated based on bandwidth portions of a wireless channel that each generation-specific preamble will occupy in the multi-generation PPDU. One or more of the generation-specific preambles may be modified based on an aggregate bandwidth of the multi-generation PPDU. This disclosure includes several options for modifying one or more generation-specific preambles or data fields to accommodate their use in a multi-generation PPDU.

公开(公告)号：US20230314549A1

公开(公告)日：2023-10-05

申请号：US17806598

申请日：2022-06-13

Applicant: QUALCOMM Incorporated

Inventor： Pooria PAKROOH ,  Bin TIAN ,  Stephen Jay SHELLHAMMER ,  Ishaque Ashar KADAMPOT

IPC: G01S5/02 ,  H04B1/7163

CPC classification number: G01S5/0268 ,  H04B1/7163

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an initiator network node may transmit a first sensing signal for sensing an object using ultra-wideband sensing. The initiator network node may receive, from a responder network node, a second sensing signal, that is based at least in part on the first sensing signal, for sensing the object using the ultra-wideband sensing. The initiator network node may obtain a location of the object relative to the initiator network node and the responder network node based at least in part on the first sensing signal and the second sensing signal. Numerous other aspects are described.

公开(公告)号：US20230179320A1

公开(公告)日：2023-06-08

申请号：US17543432

申请日：2021-12-06

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Jun MA ,  Zhifei FAN ,  Tao LUO ,  Iyab Issam SAKHNINI ,  Junyi LI ,  Bin TIAN ,  Jing SUN

IPC: H04L1/00 ,  H04W72/04 ,  H04W28/06 ,  H04L5/00

CPC classification number: H04L1/0002 ,  H04L5/0044 ,  H04W28/06 ,  H04W72/0406

Abstract: Certain aspects of the present disclosure provide techniques for indicating actual transport block size (TBS) on shaping encoding. For example, in shaping encoding, instead of using a compensated rate code (e.g., by padding or truncating) for a fixed number of output bits that is often different from the TBS scheduled, the present disclosure supports using multiple actual TBS for a given nominal TBS to improve efficiency of the shaping encoder. A transmitter (e.g., a network entity or use equipment (UE)) may encode a payload size of bits with a shaping encoder to obtain a transport block (TB), which has an actual TBS. The actual TBS is selected from a set of TBSs based on a nominal TBS. The transmitter then transmits to a receiver, an indication of the actual TBS. The indication enables the receiver to decode the corresponding encoded bits. The transmitter then transmits the TB to the receiver.

公开(公告)号：US20230135383A1

公开(公告)日：2023-05-04

申请号：US18148104

申请日：2022-12-29

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Dung Ngoc DOAN ,  Jialing Li CHEN ,  Didier Johannes Richard VAN NEE

IPC: H04W72/044 ,  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.