公开(公告)号：US20220132514A1

公开(公告)日：2022-04-28

申请号：US17481632

申请日：2021-09-22

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet NGUYEN ,  Sourjya DUTTA ,  Gabi SARKIS ,  Kapil GULATI

IPC: H04W72/08 ,  H04W72/04 ,  H04W72/02 ,  H04L1/00

Abstract: Apparatus, methods, and computer-readable media for sidelink control information forwarding for sensing procedure are disclosed herein. An example method of wireless communication at a forwarding user equipment (UE) includes receiving, from a forwarded UE, control information, and transmitting, to a sensing UE, a forward message including the control information and information associated with the forwarded UE. An example method of wireless communication at the sensing UE includes receiving, from the forwarding UE, a forward message including the control information containing a first measurement of the control information. The example method also includes obtaining a second measurement of the forward message and determining a ratio of the second measurement to the first measurement. The example method also includes selecting a specific resource based on the ratio and whether the forwarding UE is an intended receiver for the sensing UE or the forwarding UE intends to receive from the forwarded UE.

公开(公告)号：US20220132462A1

公开(公告)日：2022-04-28

申请号：US17078820

申请日：2020-10-23

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman BALASUBRAMANIAN ,  Kapil GULATI ,  Taesang YOO ,  Junyi LI

IPC: H04W64/00 ,  H04W24/10 ,  G01S13/76 ,  G01S5/02 ,  H04W4/06 ,  H04W4/40

Abstract: Methods, devices, systems, and computer-readable media for supporting position estimation are disclosed. A method at a first user equipment (UE) device may comprise sending or receiving, via a sidelink channel, a ranging signal between the first UE device and a second UE device. The method may further comprise obtaining at least one ranging measurement based on the sending or receiving the ranging signal between the first UE device and a second UE device. The method may further comprise broadcasting, via the sidelink channel, (1) the at least one ranging measurement with a reference to the second UE device or (2) a position estimate for the first UE device based on the at least one ranging measurement.

公开(公告)号：US20220095151A1

公开(公告)日：2022-03-24

申请号：US17476448

申请日：2021-09-15

Applicant: QUALCOMM Incorporated

Inventor： Dan ZHANG ,  Kapil GULATI ,  Junyi LI

IPC: H04W28/02 ,  H04W16/28

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for adapting a radar transmission based on a congestion level. A wireless device, such as a radar device, a UE, a base station, a vehicle, etc., may detect a congestion level of a wireless communication environment that includes the wireless device. The wireless device may have at least one of a first FOV or a first range within the wireless communication environment. The wireless device may transmit, based on the congestion level exceeding a threshold, a radar signal that corresponds to the wireless device having at least one of a second FOV or a second range in the wireless communication environment that is smaller than the at least one of the first FOV or the first range.

公开(公告)号：US20220061003A1

公开(公告)日：2022-02-24

申请号：US17401943

申请日：2021-08-13

Applicant: QUALCOMM Incorporated

Inventor： Hua WANG ,  Sony AKKARAKARAN ,  Kapil GULATI ,  Tao LUO ,  Junyi LI

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/10

Abstract: Disclosed are techniques for wireless communication. In an aspect, a receiver user equipment (UE) receives, from a transmitter UE, a sidelink reference signal over a sidelink established with the transmitter UE, and transmits a sidelink timing adjust (TA) command to the transmitter UE based on the sidelink reference signal, the sidelink TA command requesting the transmitter UE to adjust a sidelink transmit time of the transmitter UE. In an aspect, a transmitter UE transmits, to a receiver UE, a sidelink reference signal over a sidelink established with the receiver UE, and receives a first sidelink TA command from the receiver UE based on the sidelink reference signal, the sidelink TA command requesting the transmitter UE to adjust a sidelink transmit time of the transmitter UE.

公开(公告)号：US20220030603A1

公开(公告)日：2022-01-27

申请号：US17443226

申请日：2021-07-22

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Tien Viet NGUYEN ,  Sourjya DUTTA ,  Kapil GULATI ,  Shuanshuan WU

IPC: H04W72/12 ,  H04L1/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may identify a collision on a victim resource based at least in part on an aggressor reservation transmitted by a second UE. The first UE may transmit, to the second UE via a sidelink feedback channel, a resource collision indication that indicates at least one of the victim resource or the aggressor reservation, wherein the resource collision indication is multiplexed on one or more resources that are useable for sidelink feedback. Numerous other aspects are provided.

公开(公告)号：US20220022254A1

公开(公告)日：2022-01-20

申请号：US17305793

申请日：2021-07-14

Applicant: QUALCOMM Incorporated

Inventor： Kapil GULATI ,  Dan ZHANG ,  Junyi LI

IPC: H04W74/08 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication and radar detection. In some aspects, a radar device may perform, at an initial listen before talk (LBT) frame boundary associated with an initial LBT frame of a plurality of LBT frames, an initial LBT procedure, wherein the initial LBT frame has a frame length that is larger than a propagation delay associated with a maximum detectable range associated with the radar device; and transmit a radar signal based at least in part on a successful result of the initial LBT procedure or an additional LBT procedure. Numerous other aspects are provided.

公开(公告)号：US20210400664A1

公开(公告)日：2021-12-23

申请号：US17353269

申请日：2021-06-21

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Tien Viet NGUYEN ,  Shuanshuan WU ,  Kapil GULATI ,  Peter GAAL ,  Wanshi CHEN ,  Seyedkianoush HOSSEINI

IPC: H04W72/04

Abstract: A sidelink user equipment (UE) limits sensing of received sidelink communications during a sensing window. The UE selects resources for a future transmission from a resource pool that is based on the sensed received sidelink communications. The UE also sends the future transmission on the selected resources. Limiting sensing may result from reducing a maximum distance between reservations to less than 32 logical slots. Limiting sensing may be sensing with a reduced sensing duty cycle with discontinuous sensing or sensing for a period of time in response to a trigger. The UE may perform partial sensing for periodic traffic, and limit sensing for aperiodic traffic.

公开(公告)号：US20210392454A1

公开(公告)日：2021-12-16

申请号：US16901915

申请日：2020-06-15

Applicant: QUALCOMM Incorporated

Inventor： Chang-Sik CHOI ,  Kapil GULATI ,  Sudhir BAGHEL

IPC: H04W4/02 ,  H04W4/40 ,  B60W40/105 ,  B60W40/107 ,  B60W40/06

Abstract: A user equipment in a vehicle (V-UE) may transmit ranging signals, for example positioning reference signals (PRS), via inter-vehicle messages. The broadcast parameters for the ranging signals, such as the timing of transmission, the bandwidth, or a combination thereof, may be adjusted based on one or more motion characteristics of the vehicle. If high speed or large acceleration, or rate of turning, is detected, the rate of transmission and/or the resource blocks included in the ranging signals may be increased. By increasing the rate of transmission and/or recourse blocks in the ranging signals, other vehicles receiving the ranging signals may update the range more often and with greater accuracy for increased safety while the transmitting vehicle is traveling at high speeds or acceleration.

公开(公告)号：US20210360481A1

公开(公告)日：2021-11-18

申请号：US17228565

申请日：2021-04-12

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet NGUYEN ,  Gabi SARKIS ,  Kapil GULATI ,  Sourjya DUTTA

IPC: H04W28/26

Abstract: A method or apparatus for wireless communication at a wireless device. The wireless device transmits sidelink control information (SCI) indicating an aperiodic resource reservation and indicating a time gap between aperiodic resource reservations based at least in part on supplemental bits. The apparatus transmits a sidelink message based on the aperiodic resource reservation on a resource pool that supports periodic resource reservation

公开(公告)号：US20210327280A1

公开(公告)日：2021-10-21

申请号：US17232907

申请日：2021-04-16

Applicant: QUALCOMM Incorporated

Inventor： Chang-Sik CHOI ,  Kapil GULATI ,  Sudhir Kumar BAGHEL

IPC: G08G1/00 ,  H04W4/48 ,  H04W64/00

Abstract: A user equipment in a vehicle (v-UE) may transmit ranging signals, sometimes referred to as physical ranging signals (PRS), via inter-vehicle messages. The vehicle may be designated as a representative of a cluster of vehicles, e.g., in a vehicle platoon, and may broadcast and receive PRS on behalf of the cluster, while no other vehicles in the cluster broadcast PRS. PRS received from single representative vehicle in a separate cluster may be used to determine the inter-cluster distance between the two clusters. If the inter-cluster distance falls below a predetermined threshold, the v-UE may instruct all other vehicles in its cluster to begin broadcasting PRS, so that each vehicle can determine its distance to all other vehicles. Accordingly, the overhead due to broadcast PRS may be minimized until, e.g., accurate positioning between vehicles is warranted.