公开(公告)号：US20230345429A1

公开(公告)日：2023-10-26

申请号：US17660613

申请日：2022-04-25

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Jing SUN ,  Yisheng XUE ,  Giovanni CHISCI ,  Xiaoxia ZHANG

IPC: H04W72/04 ,  H04W72/08 ,  H04W74/08

CPC classification number: H04W72/0446 ,  H04W72/082 ,  H04W72/0406 ,  H04W74/0808

Abstract: Wireless communications systems, apparatuses, and methods are provided. A method of wireless communication performed by a first sidelink user equipment (UE) may include monitoring a first resource pool (RP) associated with a slot, monitoring a second RP associated with one or more sub-slots, wherein the second RP at least partially overlaps the first RP, receiving, from a second sidelink UE, an indicator indicating a selection of the first RP or the second RP, and receiving, from the second sidelink UE, a communication via the first RP or the second RP based on the indicator.

公开(公告)号：US20220322435A1

公开(公告)日：2022-10-06

申请号：US17221521

申请日：2021-04-02

Applicant: QUALCOMM Incorporated

Inventor： Giovanni CHISCI ,  Jing SUN ,  Arumugam CHENDAMARAI KANNAN ,  Vinay CHANDE ,  Aleksandar DAMNJANOVIC ,  Xiaoxia ZHANG

IPC: H04W74/08 ,  H04W16/28

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter node may determine a set of desired transmit beams to use for transmissions during a channel occupancy time (COT), wherein each transmit beam in the set of desired transmit beams is associated with an energy detection threshold (EDT). The transmitter node may configure a sensing beam associated with a directional listen-before-talk (LBT) procedure, wherein the sensing beam is associated with an EDT that is at least as strict as a strictest EDT associated with the set of desired transmit beams. The transmitter node may transmit using the set of desired transmit beams during the COT, wherein the COT is initiated based at least in part on an indication that the directional LBT procedure succeeded using the sensing beam. Numerous other aspects are described.

公开(公告)号：US20220322434A1

公开(公告)日：2022-10-06

申请号：US17221500

申请日：2021-04-02

Applicant: QUALCOMM Incorporated

Inventor： Giovanni CHISCI ,  Arumugam CHENDAMARAI KANNAN ,  Jing SUN ,  Vinay CHANDE ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC

IPC: H04W74/08 ,  H04W16/28 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting node may perform a directional listen-before-talk (LBT) using a sensing beam. The transmitting node may start a channel occupancy time (COT) after the directional LBT based at least in part on one of a COT claiming signal or a time stamp. The transmitting node may perform, to a receiving node, one or more transmissions during the COT using one or more transmit beams that are included in the sensing beam. Numerous other aspects are described.

公开(公告)号：US20220086839A1

公开(公告)日：2022-03-17

申请号：US17469756

申请日：2021-09-08

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia ABOTABL ,  Giovanni CHISCI ,  Muhammad Sayed Khairy ABDELGHAFFAR

IPC: H04W72/04

Abstract: A method of wireless communication at a user equipment (UE) includes receiving an indication of available frequency resources, receiving direction information, and determining one or more communication directions for each of the available frequency resources based on the direction information. The method also includes communicating with a base station using the available frequency resources based on the determined one or more communication directions for each of the available frequency resources.

公开(公告)号：US20250151036A1

公开(公告)日：2025-05-08

申请号：US18896220

申请日：2024-09-25

Applicant: QUALCOMM Incorporated

Inventor： Qing LI ,  Giovanni CHISCI ,  Chih-Hao LIU

IPC: H04W72/0446 ,  H04W72/20

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform a listen-before-talk (LBT) process for a multi-slot resource that includes a plurality of consecutive slots. The UE may transmit, based at least in part on the LBT process, a first transport block within a slot of the multi-slot resource in accordance with a first sidelink grant that includes the multi-slot resource. The UE may assign one or more other slots of the multi-slot resource to a second sidelink grant for transmitting a second transport block. Numerous other aspects are described.

公开(公告)号：US20250113376A1

公开(公告)日：2025-04-03

申请号：US18801041

申请日：2024-08-12

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Giovanni CHISCI ,  Qing LI ,  Xiaoxia ZHANG

IPC: H04W74/02 ,  H04W74/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a consistent listen-before-talk (LBT) failure indication that includes a bitmap, wherein a bit in the bitmap corresponds to a resource block (RB) set, and the bit indicates whether the RB set is associated with consistent LBT failure. The UE may perform a sidelink communication based at least in part on scheduling, wherein the scheduling is based at least in part on the consistent LBT failure indication. Numerous other aspects are described.

公开(公告)号：US20250106871A1

公开(公告)日：2025-03-27

申请号：US18830216

申请日：2024-09-10

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Giovanni CHISCI ,  Xiaoxia ZHANG ,  Jing SUN

IPC: H04W72/25 ,  H04W72/0453

Abstract: Devices, systems, and methods for configuring and indicating sidelink resources for shared or unlicensed frequency bands include configuring PSFCH resource sets using frequency interlaces of one or more PRBs. A first wireless communication device may transmit a plurality of sidelink PRB bitmaps, each associated with a PSFCH occasion or candidate. Each bit in the bitmap may indicate one PRB in the configured resource pool. The PSFCH resource sets may be partitioned by indexing the PRBs according to an interlace-first indexing sequence, and selecting contiguous subsets of indices to form the PSFCH resource sets.

公开(公告)号：US20250056602A1

公开(公告)日：2025-02-13

申请号：US18745123

申请日：2024-06-17

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Jae Ho RYU ,  Xiaoxia ZHANG ,  Giovanni CHISCI ,  Jing SUN ,  Qing LI

IPC: H04W74/0808 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communication are described. A non-sidelink synchronization signal (SLSS)-transmitting user equipment (UE) may initiate a channel occupancy time (COT) including multiple contiguous slots and a gap slot. The non-SLSS UE may detect an SLSS UE (capable of transmitting sidelink synchronization signal blocks (S-SSBs)) and assume that the gap slot will be filled with an S-SSB. The non-SLSS may transmit a sidelink message during the COT after the gap slot, based on the assumption. Alternatively, based on the SLSS UE indicating that it is capable of transmitting the S-SSB, the non-SLSS UE may schedule transmission of the S-SSB such that the gap slot is filled. If the SLSS UE is incapable of transmitting the S-SSB, the non-SLSS UE may determine a method for transmitting the sidelink message during the already-initiated COT or during another COT.

公开(公告)号：US20250056432A1

公开(公告)日：2025-02-13

申请号：US18446695

申请日：2023-08-09

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Xiaoxia ZHANG ,  Giovanni CHISCI ,  Jing SUN

IPC: H04W52/50 ,  H04L5/00 ,  H04W72/232

Abstract: Wireless communications systems and methods related to sidelink communication between user equipments (UEs). A first UE determines a power level for a physical sidelink format indicator channel (PSFCH) with multiple interlaced resource blocks (RBs) and/or a common interlace. If a reference power level is provided by a network device such as a base station, the UE may determine power levels based on the reference power level. The UE may also determine power levels based on maximum supported power levels for the UE. In some embodiments, a common interlace uses a fixed percentage of maximum UE power. In other embodiments, available transmit power is evenly split between PSFCH RBs and a common interlace. Priority PSFCH dropping rules may be implemented when scheduled PSFCHs exceed power limitations.

公开(公告)号：US20250039909A1

公开(公告)日：2025-01-30

申请号：US18361484

申请日：2023-07-28

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Jing SUN ,  Giovanni CHISCI ,  Jae Ho RYU ,  Xiaoxia ZHANG

IPC: H04W72/40 ,  H04L1/1607

Abstract: Various aspects of the present disclosure generally relate to wireless communication. Some aspects more specifically relate to sidelink communications and PSFCH padding. In some aspects, a channel occupancy time (COT) initiating UE may obtain physical sidelink feedback channel (PSFCH) information indicating that a PSFCH transmission is to occupy a common interlace and one or more physical resource blocks. The COT initiating UE may communicate a padding signal within a PSFCH gap of the common interlace in accordance with identifying that the COT initiating UE and the responding UE are not to transmit hybrid automatic repeat request (HARQ) feedback within the PSFCH gap of the common interlace. In some other aspects, the PSFCH information may indicate that the PSFCH transmission is to occupy a dedicated interlace, and the COT initiating UE may communicate a padding signal on a PSFCH resource within the dedicated interlace.