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：US20200154501A1

公开(公告)日：2020-05-14

申请号：US16673886

申请日：2019-11-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/23 ,  H04W4/40 ,  H04W36/00

Abstract: Methods, systems, and devices for wireless communications are described. The method, system, and apparatus may include managing the operation mode of a user equipment in vehicle-to-everything communication. In some aspects, a user equipment may transmit an inactive request message (or a request message) to a base station to indicate the user equipment is switching from a base station scheduling mode (or a radio access network node scheduling mode) to a peer user equipment scheduling mode (or a roadside unit scheduling mode). The user equipment may receive an acknowledgment message from the base station indicating a state change to allow the peer user equipment scheduling mode. In some cases, the user equipment may receive an area identifier from the base station, and the area identifier may indicate an area where the peer user equipment scheduling mode is allowed.

公开(公告)号：US20200084656A1

公开(公告)日：2020-03-12

申请号：US16562072

申请日：2019-09-05

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet NGUYEN ,  Shailesh Patil ,  Sudhir Kumar Baghel ,  Junyi Li ,  Kapil Gulati

IPC: H04W28/02 ,  H04L5/16 ,  H04W92/18 ,  H04W74/08

Abstract: Aspects described herein relate to determining a group of relaying user equipment (UEs), selecting a sub-channel of multiple sub-channels for transmitting, to the group of relaying UEs, quality-of-service (QoS) traffic along with one or more other transmitting UEs in the time duration, and transmitting the QoS traffic to the group of relaying UEs in the same time duration over the sub-channel.

公开(公告)号：US10581575B2

公开(公告)日：2020-03-03

申请号：US16514186

申请日：2019-07-17

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04L1/00 ,  H04L27/26 ,  H04W72/04 ,  H04J13/00 ,  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：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.

公开(公告)号：US10530461B2

公开(公告)日：2020-01-07

申请号：US15065552

申请日：2016-03-09

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/155

Abstract: A user equipment (UE) may be outside of the coverage area of a base station or other access point, which may impede access by the UE of a core network, server, or the like. Therefore, a UE may establish a relay connection to access resources when the UE is outside of a coverage area provided by a base station or access point. In aspects, an apparatus may be configured to transmit, to a set of relay UEs, a first message associated with establishment of a relay connection. The apparatus may be further configured to receive a set of messages from the set of relay UEs. The apparatus may be further configured to establish the relay connection with a first relay UE of the set of relay UEs based on a message of the set of messages from the first relay UE.

公开(公告)号：US10524282B2

公开(公告)日：2019-12-31

申请号：US14608851

申请日：2015-01-29

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W28/02 ,  H04W84/18 ,  H04L1/08 ,  H04L1/00 ,  H04L1/18 ,  H04W72/14

Abstract: Methods, systems, and devices are described for transmissions and retransmissions of scheduling assignment (SA) information, and for content of SA transmissions. SAs may be transmitted during an initial communications period, followed by data transmissions for a certain time period. A device may monitor for transmissions during the SA period and then monitor for data transmissions during periods indicated in a received SA. SAs may be retransmitted according to a retransmission pattern that may provide time or frequency diversity patterns in order to enhance reception of SAs at a receiving device. Retransmission patterns may be determined based on a resource from an SA resource pool that is used for an initial transmission of the SA.

公开(公告)号：US10477371B2

公开(公告)日：2019-11-12

申请号：US15465877

申请日：2017-03-22

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Shailesh Patil ,  Gaurav Gupta ,  Sudhir Kumar Baghel ,  Marco Papaleo

IPC: H04W4/80 ,  H04W4/70 ,  H04W8/00 ,  H04W16/14 ,  H04W76/10 ,  H04W88/02

Abstract: An effective way for the cellular device-to-device communication and the short range communication to share a set of channels for communication is desired. The apparatus may be a user equipment (UE). The apparatus determines a priority level of each channel of a plurality of channels. The apparatus determines whether a first channel of the plurality of channels, the first channel having a highest priority level, is occupied by short range wireless communication. If the first channel is occupied by the short range wireless communication, the apparatus determines availability of one or more remaining channels of the plurality of channels for a cellular device-to-device (D2D) communication, where the one or more remaining channels are different from the first channel.

公开(公告)号：US10334586B2

公开(公告)日：2019-06-25

申请号：US15399157

申请日：2017-01-05

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Sudhir Kumar Baghel ,  Shailesh Patil ,  Hua Chen

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

Abstract: One problem with current D2D communications is that there is no physical layer feedback (e.g., HARQ feedback) for unicast sidelink communications. That is, the transmitting UE does not know if the receiving UE receives and/or properly decodes the unicast transmission. Instead, current D2D communications require that a transmitting UE send a unicast sidelink communication multiple times to increase the chances that the unicast sidelink communication is received by the receiving UE. By blindly transmitting unicast sidelink communications multiple times, the spectral efficiency and radio resource utilization of the network is decreased. The present disclosure provides a solution to this problem by enabling HARQ feedback for unicast sidelink communications that improves the spectral efficiency and also enables better radio resource utilization for the network.