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：US20210051588A1

公开(公告)日：2021-02-18

申请号：US16947596

申请日：2020-08-07

Applicant: QUALCOMM Incorporated

Inventor： Zhibin WU ,  Hong CHENG ,  Kapil GULATI ,  Sudhir Kumar BAGHEL ,  Tien Viet NGUYEN ,  Junyi LI

IPC: H04W52/02 ,  H04W76/28 ,  H04W28/02 ,  H04W56/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), an indication of an access link discontinuous reception (DRX) configuration and a sidelink DRX configuration. The access link DRX configuration and the sidelink DRX configuration may synchronize access link DRX operation and sidelink DRX operation of the UE. The UE may perform access link communication with the BS based at least in part on the access link DRX configuration and/or may perform sidelink communication with another UE based at least in part on the sidelink DRX configuration. Numerous other aspects are provided.

公开(公告)号：US20210051587A1

公开(公告)日：2021-02-18

申请号：US16947510

申请日：2020-08-04

Applicant: QUALCOMM Incorporated

Inventor： Zhibin WU ,  Hong CHENG ,  Kapil GULATI ,  Sudhir Kumar BAGHEL ,  Tien Viet NGUYEN ,  Junyi LI

IPC: H04W52/02 ,  H04W72/04 ,  H04W68/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication that the UE is to transition to a sidelink discontinuous reception (DRX) sleep mode. The UE may transition to the sidelink DRX sleep mode based at least in part on transmitting the indication. Numerous other aspects are provided.

公开(公告)号：US20210037549A1

公开(公告)日：2021-02-04

申请号：US16943346

申请日：2020-07-30

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Junyi LI ,  Jung Ho RYU ,  Juan MONTOJO ,  Kapil GULATI ,  Sudhir Kumar BAGHEL ,  Hong CHENG

IPC: H04W72/12 ,  H04W72/04 ,  H04W28/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may identify a first set of resources for an access link communication between the first UE and a base station. The UE may identify a second set of resources for a sidelink communication between the first UE and a second UE. The UE may identify a scheduling conflict between the first set of resources for the access link communication and the second set of resources for the sidelink communication. The UE may drop at least a portion of the first set of resources for the access link communication or the second set of resources for the sidelink communication based at least in part on the identification of the scheduling conflict and a prioritization rule. Numerous other aspects are provided.

公开(公告)号：US20210029585A1

公开(公告)日：2021-01-28

申请号：US16938882

申请日：2020-07-24

Applicant: QUALCOMM Incorporated

Inventor： Arjun BHARADWAJ ,  Sudhir Kumar BAGHEL ,  Tien Viet NGUYEN ,  Kapil GULATI ,  Naga BHUSHAN

IPC: H04W28/08 ,  H04W72/02 ,  H04W72/08 ,  H04W28/26 ,  H04W72/12 ,  H04W4/40

Abstract: Certain aspects of the present disclosure provide techniques for high reliability vehicle-to-everything (V2X) communications. Aspects of the present disclosure provide methods that may be performed by a first sidelink device. The first sidelink device may be a roadside unit (RSU) or a user equipment (UE). The first sidelink device may detect traffic from at least a second sidelink device and send the traffic to one or more other sidelink devices. A first sidelink device may receive reservation information from a first plurality of sidelink devices and schedule a second plurality of sidelink devices based on the reservation information.

公开(公告)号：US20200305154A1

公开(公告)日：2020-09-24

申请号：US16809168

申请日：2020-03-04

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Kapil GULATI ,  Arjun BHARADWAJ ,  Sudhir Kumar BAGHEL ,  Tien Viet NGUYEN ,  Shailesh PATIL ,  Junyi LI

IPC: H04W72/04 ,  H04L5/00

Abstract: Certain aspects of the present disclosure are generally directed to an apparatus for wireless communication. The apparatus generally includes a processing system configured to determine a size of a transport block for a data channel based on a quantity of available resource elements of an allocation of resources for the transport block, the resources being allocated for transmission of data encoded in a plurality of slots of the data channel using slot aggregation, wherein the allocated resources in the plurality of slots have different quantities of available resource elements for the data, and generate the data channel in accordance with the determined size of the transport block, and an interface configured output the data channel for transmission.