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：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.

公开(公告)号：US20240381391A1

公开(公告)日：2024-11-14

申请号：US18316839

申请日：2023-05-12

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/40 ,  H04W72/0453

Abstract: A method of wireless communication performed by a first user equipment (UE) comprises transmitting, in a first channel occupancy time (COT), a first sidelink (SL) data communication in a first RB-set to a second UE, and a second SL data communication in a second RB-set to a third UE. The method further includes receiving, from the second UE in the first COT: a first SL feedback communication in the first RB-set; and a repetition of the first SL feedback communication in the second RB-set. The method further includes transmitting, to the second UE in the first COT after the receiving the first SL feedback communication, a third SL data communication in the first RB-set, and transmitting, to the third UE in the first COT after receiving the repetition of the first SL feedback communication, a fourth SL data communication in the second RB-set.

公开(公告)号：US20240380557A1

公开(公告)日：2024-11-14

申请号：US18486538

申请日：2023-10-13

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/25

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical sidelink shared channel (PSCCH) transmission that uses unlicensed spectrum. The UE may select a resource block (RB) configuration for one or more resource blocks (RBs) that are associated with a physical sidelink feedback channel (PSFCH) transmission, the RB configuration being based at least in part on the unlicensed spectrum. The UE may transmit an acknowledgement (ACK)/negative acknowledgement (NACK) response to the PSCCH transmission based at least in part on using the PSFCH and the RB configuration for the one or more RBs. Numerous other aspects are described.

公开(公告)号：US20240340823A1

公开(公告)日：2024-10-10

申请号：US18610684

申请日：2024-03-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04J13/00 ,  H04W92/18

CPC classification number: H04W56/0015 ,  H04J13/0025 ,  H04J13/0029 ,  H04W92/18

Abstract: Wireless communications systems, apparatuses, and methods are provided. A method of wireless communication performed by a first user equipment (UE) includes transmitting, to a second UE, a first sidelink synchronization block (S-SSB) in a first subset of a bandwidth, wherein the first S-SSB comprises a first sequence shift and a first identifier associated with the first UE and transmitting, to the second UE, one or more additional S-SSBs in one or more additional subsets of the bandwidth, wherein the one or more additional S-SSBs comprises at least one of a second sequence shift different from the first sequence shift or a second identifier associated with the first UE different from the first identifier associated with the first UE.

公开(公告)号：US20240267947A1

公开(公告)日：2024-08-08

申请号：US18567099

申请日：2021-08-16

Applicant: QUALCOMM Incorporated

Inventor： Giovanni CHISCI ,  Jing SUN ,  Siyi CHEN ,  Arumugam CHENDAMARAI KANNAN ,  Vinay CHANDE ,  Changlong XU ,  Xiaoxia ZHANG

IPC: H04W74/0808 ,  H04W72/1268 ,  H04W72/232

CPC classification number: H04W74/0808 ,  H04W72/1268 ,  H04W72/232

Abstract: A method of wireless communication performed by a user equipment (UE) may include: receiving, from a base station (BS), first downlink control information (DCI) scheduling an uplink (UL) communication; receiving, from the BS, a request to perform a clear channel assessment (CCA) associated with a first CCA timing configuration; performing, based on an indication to change to a second CCA timing configuration different from the first CCA timing configuration, the CCA based on the second CCA timing configuration; and transmitting, to the BS based on the CCA, the UL communication.