公开(公告)号：US20250166287A1

公开(公告)日：2025-05-22

申请号：US19031051

申请日：2025-01-17

Applicant: QUALCOMM Incorporated

Inventor： Piyush GUPTA ,  Pavan Kumar AKKARAJU ,  Alexei Vladimirovich BOURD ,  Andrew Evan GRUBER

IPC: G06T15/06 ,  G06T17/00 ,  G06T17/10

Abstract: Systems and techniques are provided for accelerated ray tracing. For instance, a process can include obtaining a hierarchical acceleration data structure that includes a plurality of primitives of a scene object and obtaining a respective information value associated with each primitive included in the plurality of primitives. A sort order can be determined for two or more nodes included in a same level of the hierarchical acceleration data structure at least in part by sorting the two or more nodes based on a respective sorting parameter value determined for each respective node of the two or more nodes. Each respective sorting parameter value can be determined based on at least one information value associated with one or more primitives included in a sub-tree of each respective node of the two or more nodes. The hierarchical acceleration data structure can be traversed using the sort order.

公开(公告)号：US20240414027A1

公开(公告)日：2024-12-12

申请号：US18812946

申请日：2024-08-22

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho RYU ,  Sony AKKARAKARAN ,  Tao LUO ,  Junyi LI ,  Tianyang BAI ,  Xiaojie WANG ,  Xiaoxia ZHANG ,  Jing SUN ,  Peter GAAL ,  Juan MONTOJO ,  Piyush GUPTA ,  Wooseok NAM ,  Mahmoud TAHERZADEH BOROUJENI ,  Hua WANG ,  Lik Hang Silas FONG ,  Yan ZHOU

IPC: H04L25/02 ,  H04W52/52 ,  H04W52/54

Abstract: Apparatus, methods, and computer-readable media for facilitating phase jump estimation for SL DMRS bundling are disclosed herein. An example method includes receiving, from another device, first information at a first symbol of a first slot, the first slot including at least the first symbol and a first reference signal. The example method also includes receiving second information at a second symbol of a second slot, the second slot including at least the second symbol and a second reference signal, the first information and the second information being repetitions. The example method also includes generating a first reference signal copy based at least on the second reference signal and a phase jump between the first slot and the second slot. Additionally, the example method includes performing channel estimation across the first slot and the second slot based on an aggregation of the first reference signal and the first reference signal copy.

公开(公告)号：US20240389068A1

公开(公告)日：2024-11-21

申请号：US18693088

申请日：2022-08-30

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Marwen ZORGUI ,  Rajat PRAKASH ,  Piyush GUPTA ,  Xiaojie WANG ,  Xiaoxia ZHANG ,  Junyi LI

IPC: H04W64/00 ,  H04W72/25 ,  H04W72/563

Abstract: In an aspect, a user equipment (UE) may receive positioning assistance data from a location server, wherein the positioning assistance data identifies one or more first positioning reference signal (PRS) resources for measurement by the UE during a positioning session between the UE and a location server. The UE may receive post-measurement positioning assistance data from at least one sidelink device located within a threshold distance to the UE, wherein the post-measurement positioning assistance data received from the at least one sidelink device is based on measurements of one or more second PRS resources obtained by the at least one sidelink device during a positioning session of the at least one sidelink device. The UE may selectively measure at least a subset of the one or more first PRS resources based on the post-measurement positioning assistance data received from the at least one sidelink device.

公开(公告)号：US20240357570A1

公开(公告)日：2024-10-24

申请号：US18686148

申请日：2022-09-28

Applicant: QUALCOMM INCORPORATED

Inventor： Srinivas YERRAMALLI ,  Piyush GUPTA ,  Rajat PRAKASH ,  Xiaoxia ZHANG ,  Junyi LI ,  Alexandros MANOLAKOS ,  Mukesh KUMAR

IPC: H04W72/0453

CPC classification number: H04W72/0453

Abstract: A reference signal transmission method includes: obtaining, at a first UE, a first configuration of a first resource pool that comprises a plurality of first OFDM resources for sidelink signal transfer; obtaining, at the first UE, a second configuration of a second resource pool that comprises a plurality of second OFDM resources for sidelink signal transfer, the second configuration of the second resource pool being different from the first configuration of the first resource pool; transmitting, from the first UE to a second UE, control information in one or more of the plurality of first OFDM resources of the first resource pool, the control information indicating one or more of the plurality of second OFDM resources of the second resource pool; and transmitting, from the first UE to the second UE, a reference signal in one or more third OFDM resources of the second resource pool.

公开(公告)号：US20240205974A1

公开(公告)日：2024-06-20

申请号：US18544681

申请日：2023-12-19

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG ,  Lik Hang Silas FONG ,  Piyush GUPTA ,  Tao LUO ,  Juan MONTOJO ,  Peter GAAL

IPC: H04W74/0816 ,  H04W52/52 ,  H04W72/0446 ,  H04W74/00

CPC classification number: H04W74/0816 ,  H04W52/52 ,  H04W72/0446 ,  H04W74/002

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a user equipment (UE) may include performing a clear channel assessment (CCA), transmitting, to a first UE based on the CCA being successful, a first transport block (TB) via a first sub-PSSCH associated with a first sub-slot, and transmitting, to at least one of the first UE or a second UE, a second TB via a PSSCH associated with a slot.

公开(公告)号：US20240121775A1

公开(公告)日：2024-04-11

申请号：US18542325

申请日：2023-12-15

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie WANG ,  Piyush GUPTA ,  Jing SUN ,  Lik Hang Silas FONG

IPC: H04W72/1263 ,  H04W52/52 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/20

CPC classification number: H04W72/1263 ,  H04W52/52 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/20 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described for improving sidelink communication reliability. In some examples, a user equipment (UE) may map allocated sidelink resources from a logical domain to a physical domain, where the mapped resources may include greater frequency diversity in the physical domain A frequency range of a sidelink control channel or of a sidelink data channel may be greater in the physical domain than in the logical domain after the mapping. In some examples, sidelink communications may be associated with an aggregation factor that represents a number of repetitions of a sidelink communication. In this example, a UE may repeat a sidelink communication within a contention-based resource pool a number of times before receiving feedback in order to increase communication reliability. A first UE may communicate a sidelink communication with a second UE using a resource mapping or repetitions of the sidelink communication.

公开(公告)号：US20240098733A1

公开(公告)日：2024-03-21

申请号：US17933255

申请日：2022-09-19

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie WANG ,  Piyush GUPTA ,  Junyi LI

IPC: H04W72/12 ,  H04L1/18 ,  H04W72/14

CPC classification number: H04W72/1268 ,  H04L1/1812 ,  H04W72/14 ,  H04W92/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a controller user equipment (UE) may transmit, to a network node, a relay scheduling request that indicates a request to schedule access to a universal mobile telecommunications system air interface (Uu) based at least in part on relaying one or more sidelink retransmissions associated with at least a first sidelink between the controller UE and a first sidelink UE. The UE may communicate the one or more sidelink retransmissions between the controller UE and the network node based at least in part on using the Uu. Numerous other aspects are described.

公开(公告)号：US20240049183A1

公开(公告)日：2024-02-08

申请号：US17816848

申请日：2022-08-02

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie WANG ,  Xiaoxia ZHANG ,  Junyi LI ,  Piyush GUPTA

IPC: H04W72/02 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W72/02 ,  H04W72/0446 ,  H04L1/0003 ,  H04L5/0051

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, a resource allocation associated with a sidelink communication. The UE may initiate a physical sidelink shared channel preparation procedure associated with the sidelink communication prior to receiving the resource allocation associated with the sidelink communication. Numerous other aspects are described.

公开(公告)号：US20230180232A1

公开(公告)日：2023-06-08

申请号：US17921932

申请日：2020-05-06

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG ,  Chih-Hao LIU ,  Ozcan OZTURK ,  Mostafa KHOSHNEVISAN ,  Tao LUO ,  Juan MONTOJO ,  Peter GAAL ,  Piyush GUPTA ,  Changlong XU

IPC: H04W72/1273 ,  H04L1/1812

CPC classification number: H04W72/1273 ,  H04L1/1812

Abstract: Information is communicated via a plurality of communication opportunities of a semi-persistent scheduling (SPS) occasion. A base station may transmit first information via a first communication opportunity of an SPS occasion and transmit second information via a second communication opportunity of that same SPS occasion. A wireless communication device may monitor all communication opportunities of an SPS occasion to decode the information sent in two or more of the communication opportunities of the SPS occasion.

公开(公告)号：US20230171669A1

公开(公告)日：2023-06-01

申请号：US17455873

申请日：2021-11-19

Applicant: QUALCOMM Incorporated

Inventor： Karl Georg HAMPEL ,  Sherif ELAZZOUNI ,  Ozcan OZTURK ,  Rajat PRAKASH ,  Fatih ULUPINAR ,  Piyush GUPTA

IPC: H04W40/22 ,  H04B7/155 ,  H04W28/02

CPC classification number: H04W40/22 ,  H04B7/15542 ,  H04W28/0278

Abstract: A base station may configure a first node and at least one second node with an integrated access and backhaul (IAB) network with the multipath multi-hop transmission configuration. The first node and the at least one second node may communicate with the first node through a direct path and a multi-hop transmission including the base station. The first node and the at least one second node may detect transmission failure on the direct path and retransmit the data packet to the multi-hop transmission, on a set of physical resource blocks (PRBs) configured by the base station. The first node may transmit remote buffer state report (rBSR) to the base station, and the base station may configure the set of PRBs for retransmissions based on the rBSR.