公开(公告)号：US20200228292A1

公开(公告)日：2020-07-16

申请号：US16737738

申请日：2020-01-08

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may utilize priority levels associated with packets or transmissions to determine whether to transmit feedback for a received transmission. The UE may compare priority levels between a transmission subject to a feedback condition and a transmission scheduled to be received when the feedback is scheduled to be transmitted to determine whether to send the feedback. The UE may communicate with the transmitting device according to the comparison and the determining. The UE may determine signal conditions causing a NAK and determine to send the NAK based on the signal conditions.

公开(公告)号：US10659936B2

公开(公告)日：2020-05-19

申请号：US16006124

申请日：2018-06-12

Applicant: QUALCOMM Incorporated

Inventor： Hong Cheng ,  Michaela Vanderveen ,  Sudhir Kumar Baghel ,  Shailesh Patil

IPC: H04W4/40 ,  H04W4/44 ,  H04W48/18 ,  H04L29/06 ,  H04W4/46 ,  H04L29/08

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) that is configured to transmit a message to a neighboring UE via multiple formats, identify a service parameter indicative of a format to be used for the message. The UE may convey information indicating the service parameter from a first layer of the UE to a second layer of the UE, wherein the first layer is an upper layer with respect to the second layer. The UE may generate, by the second layer and based at least in part on the information, the message in the format for communicating with the neighboring UE. Other aspects, embodiments, and features are claimed and described.

公开(公告)号：US10517050B2

公开(公告)日：2019-12-24

申请号：US16132707

申请日：2018-09-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/00 ,  H04W52/36 ,  H04W72/04

Abstract: Additional requirements for spectrum emissions may be matched with regional requirements, and an additional maximum power reduction (A-MPR) for a user equipment (UE) may be based on an actual antenna gain of the UE. For example, a UE may be located in a particular region and be required to meet regional requirements for wireless communications. In such cases, the UE may receive network signaling from a base station, and identify an antenna gain for its antenna. The UE may then identify a set of emission requirements based on the identified antenna gain and the network signaling. Additionally, the UE may identify an A-MPR based on the set of emission requirements and the antenna gain and may adjust a maximum output power in accordance with the identified A-MPR. In some examples, an output power threshold may be derived using a difference between a regional requirement and the UE's antenna gain.

公开(公告)号：US10477538B2

公开(公告)日：2019-11-12

申请号：US14645852

申请日：2015-03-12

Applicant: QUALCOMM Incorporated

Inventor： Saurabha Rangrao Tavildar ,  Kapil Gulati ,  Shailesh Patil ,  Sudhir Kumar Baghel

IPC: H04B1/69 ,  H04W72/04 ,  H04L5/00 ,  H04W48/10 ,  H04W52/02 ,  H04L1/18 ,  H04L1/00

Abstract: Apparatuses, systems, and devices are described for transmissions and retransmissions of device-to-device (D2D) communications. A D2D message may be transmitted during an initial communications period, followed by one or more retransmissions. A device may transmit an initial transmission, determine a time hopping pattern for the retransmission(s), and determine a transmission resource for the retransmission(s) based at least in part on a resource of the initial transmission and the time hopping pattern. The messages may include, for example, a scheduling assignment (SA) for data transmission, or data transmissions from a transmitting device. Time hopping patterns may be determined based on times and/or frequencies of the initial transmission. A base station may transmit a message to a transmitting device that indicates one or more time hopping patterns that are to be used for the transmissions.

公开(公告)号：US10412571B2

公开(公告)日：2019-09-10

申请号：US15061896

申请日：2016-03-04

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Shailesh Patil ,  Saurabha Rangrao Tavildar ,  Hong Cheng ,  Michaela Vanderveen ,  Haris Zisimopoulos ,  Bilal Sadiq ,  Kapil Gulati

IPC: H04W8/00 ,  H04W24/10 ,  H04B17/318 ,  H04W76/14 ,  H04W88/04 ,  H04W48/16 ,  H04W48/12 ,  H04W48/08

Abstract: A method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment (UE). The apparatus may transmit, to a base station, information indicating a capability to communicate with one or more relay UEs. In addition, the apparatus may receive, from the base station, configuration information associated with a discovery procedure for identifying the one or more relay UEs. Further, the apparatus may perform the discovery procedure based on the configuration information.

公开(公告)号：US20190274121A1

公开(公告)日：2019-09-05

申请号：US16276301

申请日：2019-02-14

Applicant: QUALCOMM Incorporated

Inventor： Zhibin Wu ,  Hong Cheng ,  Sudhir Kumar Baghel ,  Michaela Vanderveen ,  Junyi Li ,  Shailesh Patil ,  Kapil Gulati

IPC: H04W72/04 ,  H04W48/10

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message indicating that a base station supports allocating resources for sidelink communications using a first radio access technology (RAT) and a second RAT that is different from the first RAT. The UE may transmit a sidelink information message to the base station using the first RAT that indicates that sidelink communications are to be performed using either the second RAT or both the first RAT and the second RAT. The UE may receive a configuration message from the base station that comprises an identifier for the sidelink communications and an indication of available sidelink resources. The UE may transmit, based at least in part on the configuration message, a request for resources within the available sidelink resources, the request indicating the identifier and a buffer status report (BSR).

公开(公告)号：US10389502B2

公开(公告)日：2019-08-20

申请号：US15676762

申请日：2017-08-14

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/00 ,  H04W92/18

Abstract: A transmitting UE may in a device-to-device (D2D) communication may identify a demodulation reference signal (DMRS) sequence for a D2D transmission based at least in part on a subset of bits of a sidelink control information (SCI) transmission. The subset of bits of the SCI transmission may be selected such that the bits have sufficient variability to reduce the likelihood that multiple UEs may use the same DMRS sequence. The subset of bits of the SCI transmission may be all or a portion of a cyclic redundancy check (CRC) for the SCI.

公开(公告)号：US20190253919A1

公开(公告)日：2019-08-15

申请号：US16270538

申请日：2019-02-07

Applicant: QUALCOMM Incorporated

Inventor： Zhibin Wu ,  Sudhir Kumar Baghel ,  Hong Cheng ,  Michaela Vanderveen ,  Junyi Li ,  Kapil Gulati

IPC: H04W28/02 ,  H04W72/12 ,  H04W72/14 ,  H04W4/40 ,  H04L5/00

CPC classification number: H04W28/0273 ,  H04L5/001 ,  H04W4/40 ,  H04W28/0236 ,  H04W28/0263 ,  H04W72/121 ,  H04W72/1263 ,  H04W72/14 ,  H04W80/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine that a profile for vehicle-based sidelink communications supports packet duplication using a set of carrier frequencies. The UE may transmit a request to a base station for resources to use to perform the vehicle-based sidelink communications, the request comprising an indication of the profile, a reliability metric associated with the profile, and an identifier that identifies the set of carrier frequencies. The UE may receive one or more grants from the base station for semi-persistent scheduling resources allocated on the set of carrier frequencies in response to the request.

公开(公告)号：US20190246431A1

公开(公告)日：2019-08-08

申请号：US16267152

申请日：2019-02-04

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Junyi Li ,  Kapil Gulati ,  Tien Viet Nguyen

IPC: H04W74/08 ,  H04W52/28 ,  H04W72/12

CPC classification number: H04W74/0816 ,  H04W4/40 ,  H04W52/281 ,  H04W72/1247

Abstract: Methods, systems, and devices for wireless communications are described. A UE may identify a shortened transmission time interval (TTI) to be used for priority communications with a vehicle having a first traffic priority level, the shortened TTI having a duration that is less than that of other TTIs used in other communications with the vehicle having a second traffic priority level less than the first traffic priority level. The UE may transmit a request-to-send (RTS) message during the shortened TTI, the RTS message indicating an identifier and a configuration for the priority communications during the shortened TTI. The UE may receive a clear-to-send (CTS) message from one or more wireless devices participating in the priority communications, the CTS message indicating a sequence associating the CTS message with the RTS message. The UE may perform the priority communications with the wireless devices from which the CTS messages were received.

公开(公告)号：US20190246430A1

公开(公告)日：2019-08-08

申请号：US16267051

申请日：2019-02-04

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Junyi Li ,  Kapil Gulati

IPC: H04W74/08 ,  H04W4/40 ,  H04W72/12 ,  H04W72/04

CPC classification number: H04W74/0816 ,  H04W4/40 ,  H04W72/0446 ,  H04W72/1263

Abstract: Methods, systems, and devices for wireless communications are described. A UE may identify a plurality of shortened transmission time intervals (TTIs) to be used for priority communications to or from a vehicle having a first traffic priority level, the plurality of shortened TTIs each having a duration that is less than that of other TTIs used in other communications to or from the vehicle having a second traffic priority level which is less than the first traffic priority level. The UE may perform a listen-before-talk procedure in order to reserve the plurality of shortened TTIs for the priority communications. The UE may further reserving at least one instance of the plurality of shortened TTIs for the priority communication. The further reserving may include transmitting a request to reserve the at least one instance of the plurality of shortened TTIs for the priority communication or performing a request-to-send/clear-to-send exchange.