公开(公告)号：US20210219377A1

公开(公告)日：2021-07-15

申请号：US17147223

申请日：2021-01-12

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Sudhir Kumar Baghel ,  Shuanshuan Wu ,  Gabi Sarkis ,  Tien Viet Nguyen ,  Kapil Gulati ,  Chang-Sik Choi

IPC: H04W76/28 ,  H04W76/27 ,  H04W76/11

Abstract: In a particular implementation, a method of wireless communication includes transmitting, from a first user equipment (UE) to a second UE, a radio resource control (RRC) request that includes a first discontinuous reception (DRX) preference at the first UE. The method also includes receiving, at the first UE from the second UE, a RRC setup message that includes a second DRX preference at the second UE. The method further includes transmitting, from the first UE to the second UE, a RRC setup complete message that includes an indication of a confirmed DRX cycle.

公开(公告)号：US11057854B2

公开(公告)日：2021-07-06

申请号：US16156874

申请日：2018-10-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W4/46 ,  H04W4/70 ,  H04W76/14 ,  H04W76/27 ,  H04W72/04 ,  H04W72/10 ,  H04W4/80 ,  H04W48/00 ,  H04W4/06 ,  H04W4/40

Abstract: Features of the present disclosure implementing techniques that allow the user equipment (UE) to autonomously (e.g., without the network control) manage timing synchronization of a plurality of carriers using sidelink synchronization signal (SLSS) from one or more other UEs in order to identify a synchronization source. A synchronization source associated with a frequency carrier from a set of frequency carriers may be selected according to one or more SLSS sync source selection techniques or rules. For instance, the described solution may be utilized to enable UEs to autonomously perform V2X carrier aggregation (CA). In some examples, the synchronization carrier(s) to be searched may be determined based on the SLSS capability of the UE (e.g., transmission and reception of SLSS capabilities of the UE).

公开(公告)号：US20210144682A1

公开(公告)日：2021-05-13

申请号：US17090449

申请日：2020-11-05

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Tien Viet Nguyen ,  Kapil Gulati ,  Gabi Sarkis ,  Shuanshuan Wu ,  Chang-Sik Choi ,  Anantharaman Balasubramanian

IPC: H04W72/02 ,  H04W24/08 ,  H04W72/10 ,  H04L5/00 ,  H04W28/26 ,  H04W4/40

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques relate to the categorization of resources in a system to enable a user equipment (UE) to determine whether resources may be reclaimed. At least two categories may be defined for the resources, and the UE may use various criteria for categorizing the resources in a system. For example, the UE may include a first set of resources in an “available” category and a second set of resources in an “occupied” category. Resources in the “occupied” category may be indicated as occupied by another UE's sidelink channel information. In cases where resources are indicated as reserved for retransmission by another UE, but no feedback is detected, then the UE may use additional parameters to determine whether those resources may be reclaimed for its own transmission and may categorize the resources accordingly.

公开(公告)号：US20210099988A1

公开(公告)日：2021-04-01

申请号：US16948557

申请日：2020-09-23

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W72/04 ,  H04L5/14 ,  H04W72/02

Abstract: Wireless communications systems and methods related to sidelink communications in a TDD system are provided. A first user equipment (UE) may receive from a base station (BS), a time-division-duplexing (TDD) configuration. The first UE may select a first TDD configuration from a set of configured TDD configurations based on the TDD configuration. Additionally, the first UE may transmit to a second UE, an indication of the first TDD configuration. The first and the second UEs may communicate a sidelink communication based on the first TDD configuration. Other features are also claimed and described.

公开(公告)号：US20210051617A1

公开(公告)日：2021-02-18

申请号：US16542285

申请日：2019-08-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first kind of synchronization signals from a first synchronization source and may receive a second kind of synchronization signals from a second synchronization source. Additionally, the UE may determine a first priority for the first synchronization source and a second priority for the second synchronization source based on whether each synchronization source is connected to a global navigation satellite system from information in the synchronization signals. Accordingly, the UE may then select the synchronization source with the higher priority and communicate with one or more additional UEs based on synchronizing with the selected synchronization source. In some cases, the first kind of synchronization signals may include sidelink synchronization signals, and the second kind of synchronization signals may include data-based synchronization signals (e.g., demodulation reference signals).

公开(公告)号：US10833818B2

公开(公告)日：2020-11-10

申请号：US16680143

申请日：2019-11-11

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/18 ,  H04W72/12 ,  H04W72/04 ,  H04L5/16

Abstract: Methods, apparatuses, and computer-readable mediums for wireless communication by a user equipment (UE) includes transmitting a packet on a first resource, determining one or more repetition resources on which to send one or more redundancy versions of the packet, wherein the one or more repetition resources are at a time subsequent to the first resource, transmitting repetition resource information identifying the one or more repetition resources to one or more neighboring UEs, and transmitting the one or more redundancy versions of the packet on respective ones of the one or more repetition resources.

公开(公告)号：US20200314832A1

公开(公告)日：2020-10-01

申请号：US16829758

申请日：2020-03-25

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar BAGHEL ,  Kapil Gulati ,  Tien Viet Nguyen

IPC: H04W72/04

Abstract: Aspects described herein relate to selecting a sidelink control information (SCI) format for indicating a minimum communication range parameter, where the SCI format is a common format defined for requesting both location-based feedback and signal strength-based feedback. SCI indicating a value for the minimum communication range parameter can be generated based on the SCI format. The SCI indicating the value for the minimum communication range parameter can be transmitted to one or more devices.

公开(公告)号：US20200229174A1

公开(公告)日：2020-07-16

申请号：US16739005

申请日：2020-01-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/02 ,  H04W72/08 ,  H04W64/00

Abstract: Methods, systems, and devices for wireless communications are described. A device may determine a set of parameters related to a transmission of a packet. For example, a device may determine a transmission range indication for the packet, a Quality-of-Service (QoS) of the packet, or a combination thereof. The device may then determine a resource exclusion parameter related to the transmission of the packet based in part on the set of parameters. Following the determination, the device may transmit, to one or more other devices in a wireless communications system, control signaling including the resource exclusion parameter.

公开(公告)号：US20200228949A1

公开(公告)日：2020-07-16

申请号：US16738970

申请日：2020-01-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/44 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described that may enable a user equipment (UE) to transmit sidelink data within an interference avoidance resource scheduling scheme. For example, a UE may determine to segment a data packet for transmission in a vehicle-to-everything (V2x) system (e.g., to ensure that each segment fits within one transmission time interval (TTI)). In some cases, a UE may identify a data packet for transmission, may determine that the size of the data packet exceeds a threshold size, may segment the data packet to ensure each segment fits within one TTI, and may transmit the data packet segments (e.g., to additional UEs), where said transmissions may be discontinuous. In some examples, a UE may determine to segment the data packet and then encode the data packet. Additionally or alternatively, the UE may determine to encode the data packet and then segment the data packet.

公开(公告)号：US10575149B2

公开(公告)日：2020-02-25

申请号：US15920401

申请日：2018-03-13

Applicant: QUALCOMM Incorporated

Inventor： Zhibin Wu ,  Shailesh Patil ,  Sudhir Kumar Baghel ,  Libin Jiang ,  Junyi Li ,  Kapil Gulati ,  Tien Viet Nguyen ,  Georgios Tsirtsis

IPC: H04W4/40 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W4/46 ,  G08G1/00 ,  H04W4/08

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE), e.g., a lead platooning vehicle configured for wireless communications, may determine a communication resource requirement for a group of platooning vehicles. The communication resource requirement may be based at least in part on a number of vehicles forming the group of platooning vehicles and a communication range of at least a portion of the vehicles. The UE may identify, based at least in part on the identified communication resource requirement, an assignment of time-frequency radio resources to use for inter-vehicle communications in the group of platooning vehicles. The UE may transmit an indication of the assignment of time-frequency radio resources to the group of platooning vehicles.