公开(公告)号：US20210116560A1

公开(公告)日：2021-04-22

申请号：US16997328

申请日：2020-08-19

Applicant: QUALCOMM Incorporated

Inventor： Kapil GULATI ,  Junyi LI ,  Raju HORMIS ,  Navid ABEDINI

IPC: G01S13/931 ,  G01S13/42

Abstract: Disclosed are techniques for non-line-of-sight (NLOS) target detection. In an aspect, a source vehicle receives, from a roadside unit (RSU), a notification that the RSU is capable of repeating radar signals transmitted by the source vehicle in NLOS directions from the source vehicle, receives, from an active radar repeater associated with the RSU, radar signals for a radar beam sweep in at least one NLOS direction from the source vehicle, receives an angle of each beam of the radar beam sweep, and performs target object detection based on the radar signals for the at least one NLOS direction and the angle of each beam of the radar beam sweep. Example architectures for the active radar repeater are also disclosed.

公开(公告)号：US20210112525A1

公开(公告)日：2021-04-15

申请号：US17068561

申请日：2020-10-12

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Wanshi CHEN ,  Alexandros MANOLAKOS ,  Kapil GULATI ,  Sudhir Kumar BAGHEL ,  Gideon Shlomo KUTZ

IPC: H04W72/02 ,  H04L1/00 ,  H04L27/26 ,  H04L27/38

Abstract: Certain aspects of the present disclosure provide techniques for mapping two-stage sidelink control with multiple layer sidelink data channel. A first user equipment (UE) can rate-match a multiple-layer second stage of a two-stage sidelink control information (SCI) transmission as a single layer. The first UE transmits the multiple-layer second stage of the two-stage SCI, to a second UE, using multiple antenna ports.

公开(公告)号：US20210105817A1

公开(公告)日：2021-04-08

申请号：US17027645

申请日：2020-09-21

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet NGUYEN ,  Gabi SARKIS ,  Kapil GULATI ,  Sudhir Kumar BAGHEL

IPC: H04W74/08 ,  H04B17/327 ,  H04B17/27

Abstract: A receiving device identifies a collision between first resources reserved by a first transmitting device and second resources reserved by a second transmitting device and transmits a collision indication to the first transmitting device or the second transmitting device based on the identified collision. A transmitting device that receives a collision indication from the receiving device backs off from transmitting during the resources received by the resource reservation in response to receiving the collision indication from the receiving device.

公开(公告)号：US20210105728A1

公开(公告)日：2021-04-08

申请号：US16948798

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet NGUYEN ,  Sudhir Kumar BAGHEL ,  Kapil GULATI ,  Gabi SARKIS ,  Junyi LI ,  Shuanshuan WU

IPC: H04W52/46 ,  H04W52/36 ,  H04L1/18 ,  H04L5/00 ,  H04W8/24 ,  H04W24/10 ,  H04B17/318 ,  H04L1/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify multiple candidate sets of physical sidelink feedback channel (PSFCH) transmissions that include hybrid automatic repeat request (HARQ) feedback for sidelink communications received from one or more peer UEs. The UE may select, from one or more of the multiple candidate sets that satisfy a PSFCH transmit power constraint, at least one candidate set that has a highest value for a utility parameter among utility parameters associated with each of the one or more candidate sets that satisfy a PSFCH transmit power constraint. The UE may transmit, on a PSFCH, the plurality of PSFCH transmissions included in the at least one candidate set in a HARQ feedback occasion. Numerous other aspects are provided.

公开(公告)号：US20210105119A1

公开(公告)日：2021-04-08

申请号：US17062020

申请日：2020-10-02

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Kapil GULATI ,  Alexandros MANOLAKOS ,  Shuanshuan WU ,  Sudhir Kumar BAGHEL ,  Tien Viet NGUYEN

IPC: H04L5/00 ,  H04W72/12 ,  H04L5/02

Abstract: Certain aspects of the present disclosure provide techniques for channel estimation for two-stage sidelink control using sidelink data channel demodulation reference signals (DMRS). A user equipment (UE) can transmit DMRS for the sidelink data channel. The UE may transmit the second stage of the sidelink control using antenna ports or a precoder used for the sidelink data channel. The receiving device may receive the DMRS, estimate the channel, and demodulate the second stage of the sidelink control based on the estimated channel. The receiving device may flexibly determine the DMRS to use for the estimation and demodulation.

公开(公告)号：US20210099918A1

公开(公告)日：2021-04-01

申请号：US17031325

申请日：2020-09-24

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Kapil GULATI ,  Tien Viet NGUYEN ,  Shuanshuan WU ,  Sudhir Kumar BAGHEL

IPC: H04W28/26 ,  H04W72/02 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for flexible resource reservations in sidelink communications. An example method that may be executed by a first user equipment (UE) includes determining, for sidelink communications with a second UE, one or more first resource reservations and one or more second resource reservations. The second resource reservations may have a different frequency resource allocation than the first resource reservations. The method also includes transmitting, to the second UE, control information having an indication of the first resource reservations and the second resource reservations. The method further includes communicating with the second UE based on the first resource reservations and the second resource reservations.

公开(公告)号：US20210091837A1

公开(公告)日：2021-03-25

申请号：US16948198

申请日：2020-09-08

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Sony AKKARAKARAN ,  Tao LUO ,  Junyi LI ,  Kapil GULATI

IPC: H04B7/06 ,  H04L5/00 ,  H04W76/27 ,  H04W72/04 ,  H04L1/18 ,  H04L1/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a sidelink channel state information (CSI) reference signal (CSI-RS). The UE may transmit, based at least in part on the sidelink CSI-RS, a CSI report on a physical sidelink feedback channel. Numerous other aspects are provided.

公开(公告)号：US20210091836A1

公开(公告)日：2021-03-25

申请号：US16948197

申请日：2020-09-08

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Kapil GULATI ,  Sony AKKARAKARAN ,  Tao LUO ,  Junyi LI

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/02 ,  H04L1/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may configure a first set of resources for a physical sidelink shared channel (PSSCH) transmission. The UE may configure a second set of resources for a sidelink channel state information (CSI) reference signal (CSI-RS) transmission, the sidelink CSI-RS transmission is associated with the PSSCH transmission, and the sidelink CSI-RS transmission occurs prior to the PSSCH transmission. The UE may transmit a first sidelink control information (SCI) in a physical sidelink control channel (PSCCH) transmission, the first SCI including an indication of the first set of resources and the second set of resources. Numerous other aspects are provided.

公开(公告)号：US20210084660A1

公开(公告)日：2021-03-18

申请号：US17007911

申请日：2020-08-31

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Sony AKKARAKARAN ,  Juan MONTOJO ,  Junyi LI ,  Jung Ho RYU ,  Hong CHENG ,  Kapil GULATI

IPC: H04W72/08 ,  H04W52/02 ,  H04L5/00 ,  H04W72/02

Abstract: Some aspects provide a method for wireless communication by a first wireless device. The method generally includes selecting, from a resource pool allocated for sidelink data transmission from a second wireless device to the first wireless device, a subset of the resource pool for the sidelink data transmission. The method generally includes transmitting an indication to the second wireless device of the selected subset of the resource pool. The method generally includes monitoring the subset of the resource pool for the sidelink data transmission.

公开(公告)号：US20210051619A1

公开(公告)日：2021-02-18

申请号：US16939760

申请日：2020-07-27

Applicant: QUALCOMM Incorporated

Inventor： Kapil GULATI ,  Navid ABEDINI ,  Junyi LI

IPC: H04W56/00 ,  H04W76/10

Abstract: In an embodiment, a UE establishes, with a peer sidelink UE, at least one sidelink communications link that each comprises one or more hops. The UE determines estimates a propagation delay between the UE and the peer sidelink UE based in part upon a relationship between a propagation time, between the UE and the peer sidelink UE, and Reference Signal Received Power (RSRP) irrespective of whether the UE remains synchronized with respect to the network clock.