公开(公告)号：US20210243836A1

公开(公告)日：2021-08-05

申请号：US17148198

申请日：2021-01-13

Applicant: QUALCOMM INCORPORATED

Inventor： Shuanshaun Wu ,  Anantharaman Balasubramanian ,  Gabi Sarkis ,  Kapil Gulati ,  Sudhir Kumar Baghel ,  Shailesh Patil ,  Tien Viet Nguyen

IPC: H04W76/28 ,  H04W72/04 ,  H04W80/02

Abstract: Wireless communication systems and methods related to sidelink communications are provided. A first user equipment (UE) determines a discontinuous operation configuration that indicates an on-duration period for a sidelink communication and a cycle of discontinuous operation. The first UE communicates with at least one other UE during the on-duration period indicated by the discontinuous operation configuration. The first UE uses a base configuration and an on-duration parameter, an offset parameter, and a cycle parameter to determine a discontinuous operation configuration for the first UE.

公开(公告)号：US11006269B2

公开(公告)日：2021-05-11

申请号：US16515797

申请日：2019-07-18

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Shailesh Patil ,  Tien Viet Nguyen

IPC: H04W8/24 ,  H04W72/04 ,  H04W72/14 ,  H04W76/16 ,  H04W72/12 ,  H04W76/14 ,  H04W88/06

Abstract: Aspects described herein relate to transmitting, to at least one base station, at least one indication of a capability to simultaneously transmit using two different radio access technology (RAT) sidelinks over respective frequency bands. An indication of resources, corresponding to a first RAT sidelink of the two different RAT sidelinks, to exclude in assigning first resources, corresponding to a first RAT sidelink of the two different RAT sidelinks, can also be transmitted to the at least one base station or a second base station. One or more resource grants assigning at least one of the first resources for transmitting using the first RAT sidelink of the two different RAT sidelinks or second resources for transmitting using the second RAT sidelink of the two different RAT sidelinks can be received from the at least one base station or the second base station.

公开(公告)号：US20210105661A1

公开(公告)日：2021-04-08

申请号：US17061543

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Kapil Gulati ,  Tien Viet Nguyen ,  Gabi Sarkis ,  Shuanshuan Wu

IPC: H04W28/02 ,  H04W4/40 ,  H04W24/08

Abstract: In one aspect, a method includes determining, by a user equipment (UE), a channel busy ratio (CBR) window for a CBR measurement for one or more resources; determining, by the UE, a CBR measurement value for the CBR window and for the one or more resources; determining, by the UE, a channel occupancy ratio (CR) window based on a first number of subframes used for a history of past transmissions and based on a second number of subframes used for future planned transmissions and corresponding retransmissions; and determining, by the UE, a CR value for the CR window based on subchannels used for the one or more resources for the first number of subframes and based on subchannels estimated for the one or more resources for the second number of subframes. In another aspect, a method includes determining a CR window based on a CBR measurement value.

公开(公告)号：US20210099269A1

公开(公告)日：2021-04-01

申请号：US17003738

申请日：2020-08-26

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan Wu ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Gabi Sarkis ,  Tien Viet Nguyen

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, which may be otherwise known as user equipment (UE), may receive a data transmission and determine a slot to transmit a hybrid automatic repeat request (HARQ) feedback based on the data transmission. The communication device may determine one or more HARQ feedback resources or one or more HARQ feedback resource sets in the slot to transmit the HARQ feedback, where the one or more hybrid automatic repeat request feedback resources or the one or more hybrid automatic repeat request feedback resource sets in the slot comprises a set of frequency resources associated with the slot, and transmit the HARQ feedback using the one or more HARQ feedback resources or the one or more HARQ feedback resource sets in the slot.

公开(公告)号：US10856345B2

公开(公告)日：2020-12-01

申请号：US16156646

申请日：2018-10-10

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Shailesh Patil ,  Tien Viet Nguyen ,  Sudhir Kumar Baghel

IPC: H04W76/14 ,  H04W72/04 ,  H04L5/00 ,  H04L1/18

Abstract: Wireless communication apparatus and methods related to wireless communication, for example, device-to-device feedback are described. In aspects, a method of wireless communication may include communicating a sidelink traffic communication using a sidelink communication structure, and communicating an allotting for sidelink feedback using at least one feedback symbol of the sidelink communication structure. In aspects, the method includes communicating, by a first wireless communication device, a sidelink feedback communication using at least one feedback symbol of the sidelink communication structure, wherein the sidelink feedback communication is associated with the sidelink traffic communication. Numerous other aspects are provided.

公开(公告)号：US20200235848A1

公开(公告)日：2020-07-23

申请号：US16746686

申请日：2020-01-17

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet Nguyen ,  Kapil Gulati ,  Sudhir Kumar Baghel ,  Arjun Bharadwaj

IPC: H04L1/00 ,  H04L5/00 ,  H04B17/318 ,  H04W28/26 ,  H04W28/02 ,  H04W72/10 ,  H04W4/40

Abstract: Methods, systems, and devices for wireless communications are described. A device, which may be otherwise known as user equipment (UE) may support sidelink communications, for example, such as device-to-device (D2D) communications, vehicle-based communications, which may also be referred to as vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, and the like. To mitigate or decrease collisions or other interference on resources (e.g., time and frequency resources) used by other UEs in sidelink communications, a UE may determine a blind retransmission of a packet, determine that the packet satisfies one or more conditions based in part on the blind retransmission, and transmit feedback signal relating to the blind retransmission of the packet.

公开(公告)号：US20200229205A1

公开(公告)日：2020-07-16

申请号：US16739975

申请日：2020-01-10

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Tien Viet Nguyen ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Shuanshuan Wu

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described in which a transmitting user equipment (UE) may determine a data packet to transmit to another UE and determine a set of candidate resources for transmission of the data packet based on a set of time-frequency resources that are allocated for UE-to-UE communications. A resource reservation signal (RRS) may be transmitted to indicate to other UEs that the set of candidate resources have been reserved by a UE. The RRS may be transmitted such that the RRS may be differentiated from other regular transmissions based at least in part on information provided by a control channel associated with the RRS or a payload of a transmission that includes the RRS. The RRS may indicate one or more of a size of an allocation of the resources and multiple locations of the resources within a time-frequency resource pool.

公开(公告)号：US20200229146A1

公开(公告)日：2020-07-16

申请号：US16830072

申请日：2020-03-25

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil Gulati ,  Sudhir Kumar Baghel ,  Shailesh Patil ,  Tien Viet Nguyen ,  Zhibin Wu

IPC: H04W72/02 ,  H04W72/04 ,  H04W72/12

Abstract: A user equipment (UE) may communicate with one or more other UEs using multiple transmissions in a device-to-device (D2D) communications deployment. A number of UEs may be configured with D2D resources, and a transmitting UE may identify available D2D resources from the configured resources. The transmitting UE may identify a resource for a first transmission of a D2D transmission from the available D2D resources, and may identify a second resource for a second transmission of the D2D transmission. The second transmission may be a blind HARQ transmission that may be transmitted to enhance the likelihood that one or more receiving UEs successfully receive the transmission. In some examples, the second resource may be identified based on other available resources within an predetermined time window around the first transmission.

公开(公告)号：US20200229144A1

公开(公告)日：2020-07-16

申请号：US16737775

申请日：2020-01-08

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Tien Viet Nguyen ,  Kapil Gulati ,  Sudhir Kumar Baghel

IPC: H04W72/02 ,  H04W4/40 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described that provide for dynamic resource avoidance and slot aggregation. The described techniques enable a user equipment (UE) in a vehicle-to-everything (V2X) system to select resources for varying transmission of a data packet (e.g., over multiple slots). The UE may determine a set of candidate transmission time intervals (TTIs) for transmission of the data packet based on a resource map, which may involve selecting resources that are unoccupied by other UEs as indicated by the resource map or preempting other UEs based on traffic priority or latency. The UE may transmit a reservation indication indicating resources to be reserved for subsequent transmissions (e.g., retransmission) and a UE receiving the reservation indication may update its resource map.

公开(公告)号：US10582459B2

公开(公告)日：2020-03-03

申请号：US16399400

申请日：2019-04-30

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Tien Viet Nguyen ,  Gene Fong ,  Shailesh Patil ,  Sudhir Kumar Baghel

IPC: H04W52/30 ,  H04W52/36 ,  H04W52/28 ,  H04W52/24 ,  H04W52/26 ,  H04B7/208 ,  H04B7/212 ,  H04B15/06 ,  H04W52/50

Abstract: A method, computer-readable medium, and apparatus operate to reduce or eliminate interference with one or more other communication systems having specific transmission requirements within a specific geographic area. For example, aspects operate by determining that a user equipment (UE) is in a protection zone where additional transmission requirements apply. The additional transmission requirements enable coexistence with one or more other communication systems in the protection zone. The UE may identify, based on being in the protection zone and a coexistence mode, one or more transmit emission limit requirements to be met. The UE may identify, based on being in the protection zone and the coexistence mode, one or more maximum transmit power requirements to be met. The UE may configure a transmit output power, at which the UE can meet the one or more transmit emission limit requirements and the one or more maximum transmit power requirements.