公开(公告)号：US20220070883A1

公开(公告)日：2022-03-03

申请号：US17446126

申请日：2021-08-26

Applicant: QUALCOMM INCORPORATED

Inventor： Chang-Sik Choi ,  Shuanshuan Wu ,  Kapil Gulati

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

Abstract: Methods, systems, and devices for wireless communications are described. A device may receive a directional positioning reference signal over one or more beams from another device. The device may transmit a broadcast positioning reference signal in response to receipt of the directional positioning reference signal. The device may receive, from the other device, a report including timing and directionality associated with transmission of the directional positioning reference signal. The report may also include timing and directionality associated with receipt of the broadcast positioning reference signal at the other device. Responsive to receipt of the report, the device may transmit beam specific measurement information associated with the one or more beams to the other device. The device may communicate with the other device using a beam of the one or more beams based at least on the report and the beam specific measurement information.

公开(公告)号：US20210329730A1

公开(公告)日：2021-10-21

申请号：US17363251

申请日：2021-06-30

Applicant: QUALCOMM Incorporated

Inventor： Zhibin Wu ,  Hong Cheng ,  Sudhir Kumar Baghel ,  Shailesh Patil ,  Kapil Gulati ,  Arjun Bharadwaj ,  Tien Viet Nguyen ,  Shuanshuan Wu

IPC: H04W76/27 ,  H04W80/08 ,  H04W4/40 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may establish a unicast connection over a sidelink communications with a second UE. To establish the unicast connection over the sidelink, the first UE may transmit a request message (e.g., a first message) to the second UE, and the second UE may transmit a response message (e.g., a second message) to the first UE accepting the request. The unicast connection over the sidelink may then be established between the first UE and the second UE, and user data may then be transmitted over the sidelink on the established unicast connection. Additionally, the first UE may transmit a connection complete message (e.g., a third message) to the second UE indicating that the unicast connection has been established. The request message, the response message, and the connection complete message may be radio resource control (RRC) messages.

公开(公告)号：US20210267008A1

公开(公告)日：2021-08-26

申请号：US17179367

申请日：2021-02-18

Applicant: QUALCOMM Incorporated

Inventor： Sourjya Dutta ,  Kapil Gulati ,  Shuanshuan Wu ,  Anantharaman Balasubramanian ,  Sudhir Kumar Baghel

IPC: H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described. A communication device supports sidelink communications, including device-to-device (D2D) communications and vehicle-based communications. The communication device receives, from another device, a discontinuous transmission (DTX) configuration for a sidelink connection between the communications device and the other device. Based on the received DTX configuration, the communications device determines a discontinuous reception (DRX) configuration and transmit, to the other device, the determined DRX configuration. The devices experience power savings, among other results according to the DTX configuration or the DRX configuration.

公开(公告)号：US20210258827A1

公开(公告)日：2021-08-19

申请号：US17156177

申请日：2021-01-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/06 ,  H04L1/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, two devices may communicate over a sidelink and support a mutually understood transport block (TB) size (TBS) determination procedure associated with a data channel including a control message. A first device may encode and transmit information on the data channel, including the control message and a data message. A second device may receive and decode the information on the data channel. The first device and the second device may determine a TBS for encoding and decoding the data channel, respectively, based on determining an estimated resource element (RE) overhead for the control message and determining an approximate TBS based on the estimated RE overhead.

公开(公告)号：US20210250150A1

公开(公告)日：2021-08-12

申请号：US17165140

申请日：2021-02-02

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/00

Abstract: Methods, systems, and devices for sidelink wireless communications are described in which a transmitting device may determine a transport block size (TBS) for a sidelink data channel transmission and provide an indication in in sidelink control information (SCI) to allow a receiving device to determine the TBS to be used for decoding the sidelink communication. The indication provided in the SCI may be an explicit indication in an information element that indicates whether feedback channel resources are included or excluded when determining a number of symbols for use in a TBS determination. The indication provided in the SCI may also be an implicit indication based on one or more values of one or more parameters provided in the SCI. The sidelink communications devices may determine a same TBS across multiple instances of a sidelink data channel transmission that may be transmitted using slots having different slot formats.

公开(公告)号：US20210227619A1

公开(公告)日：2021-07-22

申请号：US17147738

申请日：2021-01-13

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Kapil Gulati ,  Sudhir Kumar Baghel ,  Shuanshuan Wu ,  Gabi Sarki ,  Tien Viet Nguyen ,  Hong Cheng

IPC: H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE), may receive, at a processing layer of the UE, sets of discontinuous reception (DRX) cycle parameters from a corresponding set of applications at an application layer of the UE. The UE may determine, based on the sets of DRX parameters, a common DRX cycle to satisfy each of the sets of applications. The UE may transmit the common DRX cycle to one or more layers in the user plane protocol stack of the UE. A base station may also receive a request, from the UE, for a set of DRX cycle parameters that satisfies the common DRX cycle of the UE. The base station may transmit an indication of the set of DRX parameters, and receive, from the UE, a confirmation of a DRX cycle associated with the set of DRX cycle parameters.

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：US20210195576A1

公开(公告)日：2021-06-24

申请号：US17121321

申请日：2020-12-14

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Shuanshuan Wu ,  Kapil Gulati ,  Sudhir Kumar Baghel

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/08 ,  H04W52/34

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit concurrent messages over a sidelink channel to another UE and over an uplink channel to a base station. The UE may transmit, to a base station, a report indicating a capability of the UE to concurrently transmit over a sidelink channel and an uplink channel. The UE may receive, from the base station and based on the report, a transmission configuration scheduling a concurrent sidelink and uplink transmission within a resource shared by the sidelink channel and the uplink channel. The UE may then transmit the concurrent sidelink and uplink transmission within the resource shared by the sidelink channel and the uplink channel based on the transmission configuration. The other UE and the base station may receive the concurrent sidelink and uplink transmission and may decode different layers of the transmission.

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.