公开(公告)号：US10931483B2

公开(公告)日：2021-02-23

申请号：US16014799

申请日：2018-06-21

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li ,  Hua Wang

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/08 ,  H04W36/00 ,  H04L25/02 ,  H04W74/08 ,  H04W4/70 ,  H04L5/00 ,  H04W24/10 ,  H04W76/14 ,  H04W8/00 ,  H04W88/06 ,  H04W48/16

Abstract: Methods and apparatuses are provided which may be used in a base station and/or user equipment (UE) to support or otherwise provide device-to-device (D2D) communication in a shared radio frequency spectrum between candidate UEs. For example, a base station may determine that a first UE and a second UE are candidates for D2D communication, and provide and indicate that a Grant-free Uplink (GUL) resource allocation for D2D communication between the first and second UEs. The base station may further monitor the D2D communication.

公开(公告)号：US20210051495A1

公开(公告)日：2021-02-18

申请号：US16926899

申请日：2020-07-13

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Xiaoxia Zhang

IPC: H04W24/04 ,  H04L1/18 ,  H04W72/04 ,  H04W72/12 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. Wireless devices may communicate over a primary and fallback beam. To support communications over a primary and fallback beam, a preconfiguration procedure may be performed to communicate to a transmitting and receiving device the identity of the primary and fallback beam. A central scheduling node may assist in identifying the primary and fallback beam for the transmitting and receiving device. During communications, the transmitting and receiving device may switch to the fallback beam when an initial communication fails and may perform a retransmission that includes data from the initial communication over the fallback beam.

公开(公告)号：US10897340B2

公开(公告)日：2021-01-19

申请号：US16380562

申请日：2019-04-10

Applicant: QUALCOMM Incorporated

Inventor： Chong Li ,  Junyi Li ,  Piyush Gupta ,  Hua Wang

IPC: H04L5/00 ,  H04L1/00 ,  H04B17/336 ,  H04W76/27

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of one or more resources, assigned to multiple UEs, to be used to transmit a channel quality indicator (CQI) report; receive an indication of a threshold value associated with a range of channel conditions corresponding to a modulation and coding scheme (MCS) being used to communicate with the UE; and selectively transmit the CQI report on the one or more resources based at least in part on whether a measured channel condition is outside of the range of channel conditions by at least the threshold value. Numerous other aspects are provided.

公开(公告)号：US10813054B2

公开(公告)日：2020-10-20

申请号：US16277948

申请日：2019-02-15

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Christophe Chevallier

IPC: H04W52/14 ,  H04L1/16 ,  H04W52/48 ,  H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. Techniques for multiple transmission reception points (TRPs) in a cluster may coordinate scheduling and communications with a user equipment (UE). Different TRPs may allocate uplink resources for one or more UEs within a coordinated cluster to transmit feedback information. A first TRP may provide a first set of resources that one or more associated UEs may use to transmit acknowledgment (ACK) feedback to indicate successful receipt of a downlink transmission of the first TRP, and one or more other TRPs of the coordinated cluster may provide a second set of resources that the one or more UEs may use to transmit negative acknowledgment (NACK) feedback to indicate that a downlink transmission of the first TRP was lost. The second set of resources may include non-orthogonal multiple access (NOMA) resources.

公开(公告)号：US10721723B2

公开(公告)日：2020-07-21

申请号：US16014988

申请日：2018-06-21

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Piyush Gupta ,  Wanshi Chen ,  Heechoon Lee

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04W72/14 ,  H04W72/12

Abstract: Aspects of the disclosure relate to communication systems, apparatus and methods which enable or support transmitting/receiving downlink control information (DCI) carrying a downlink grant or an uplink grant. A method includes detecting a reference length based on an effective length of a downlink (DL) grant DCI and an effective length of an uplink (UL) grant DCI and calculating a length difference based on the effective DL grant DCI length and the effective UL grant DCI length. A length of a padding field in the DL grant DCI and/or the UL grant DCI is set equal to the calculated length difference such that the lengths of the DL grant DCI and UL grant DCI are both equal to the reference length. Padding bits are inserted in the padding field of the DL grant DCI and/or the UL grant DCI. Thereafter, the DL grant DCI and/or the UL grant DCI is encoded and transmitted to a scheduled entity.

公开(公告)号：US10536956B2

公开(公告)日：2020-01-14

申请号：US15188016

申请日：2016-06-21

Applicant: QUALCOMM Incorporated

Inventor： Hua Wang ,  Piyush Gupta ,  Junyi Li

IPC: H04W72/12 ,  H04W56/00 ,  H04W84/18

Abstract: A unified frame structure for communicating in a synchronous and slotted mesh network is provided. Nodes within the mesh network are designated as primary and secondary nodes. For each transmission, a primary node may first send scheduling information to secondary nodes associated with the primary node. The receiver of the scheduled link may send a clear-to-send signal. For uplink scheduled transmissions, the receiver is the primary node. For downlink scheduled transmissions, the receiver is a secondary node. The transmitter of the scheduled link may receive the CTS signal from one or more proximate receivers, including a receiver associated with the scheduled transmission as well as other receivers not associated with the scheduled transmission. The transmitter of the scheduled link may estimate the signal to interference-plus-noise ratio of other links that are of higher priority and may then determine whether to yield or power back off the scheduled transmission.

公开(公告)号：US10477566B2

公开(公告)日：2019-11-12

申请号：US15442298

申请日：2017-02-24

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li

IPC: H04W72/12 ,  H04W72/06 ,  H04W76/14 ,  H04W72/04 ,  H04L5/00 ,  H04W72/10

Abstract: A device may use sidelink request and sidelink response (e.g., DSS/STS and DRS) resources (in a sub-band) of different sizes depending on whether the sub-band is a primary sub-band or secondary sub-band. The device may transmit more information in the request/response resources of a primary sub-band than in the request/response resources of a secondary sub-band. The device may transmit small amounts of information in its request/response resources in secondary sub-bands. The resources in the secondary sub-bands may include, for example, reference signals, and signals indicating occupation of the sub-band. The device may utilize tone signaling for request/response signaling in the secondary sub-bands (at least because the amount of information being conveyed in the secondary sub-bands is small) and digital signaling in the primary sub-band (at least because the amount of information being conveyed in the primary sub-band is large in comparison to that being conveyed in the secondary sub-bands).

公开(公告)号：US10476964B2

公开(公告)日：2019-11-12

申请号：US16042434

申请日：2018-07-23

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li

IPC: H04B7/204 ,  H04L29/08 ,  H04W72/04 ,  H04W4/70 ,  H04W88/04

Abstract: Wireless communication systems and methods related to the discovery and selection of relay devices by internet of everything (IoE) devices are disclosed. For example, IoE devices with low pathloss to a base station can broadcast information during discovery frames that allow other IoE devices to discover them and select them as a relay, if appropriate. The discovery broadcast message from an IoE device can include information to allow a listening IoE device to select a suitable IoE device for relaying its data that satisfies latency parameters while minimizing the energy impact of relaying. Signaling structures are also provided to allow different IoE devices to select slots for broadcasting within the discovery frame in a distributed manner without disrupting existing periodic broadcasts. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20190261394A1

公开(公告)日：2019-08-22

申请号：US16278281

申请日：2019-02-18

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Rajat Prakash ,  Chong Li ,  Piyush Gupta

IPC: H04W72/12 ,  H04L1/08 ,  H04W72/04

Abstract: Methods, systems, and devices for dynamic monitoring and scheduling in retransmission are described for wireless communications. For example, a receiving device may receive a data transmission in a first receiver bandwidth, determine that a data packet of the data transmission was unsuccessfully decoded, switch to a second receiver bandwidth that is wider than the first receiver bandwidth or narrower than the first receiver bandwidth (e.g., based on determining that the data packet was unsuccessfully decoded), and receive a retransmission of the data packet in the second receiver bandwidth. In another example, a transmitting device may schedule a data transmission according to a first receiver bandwidth, receive an indication that a data packet of the data transmission was unsuccessfully decoded, and schedule a retransmission of the data packet according to a second receiver bandwidth that is wider than the first receiver bandwidth or narrower than the first receiver bandwidth.

公开(公告)号：US10390362B2

公开(公告)日：2019-08-20

申请号：US15368425

申请日：2016-12-02

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Chong Li ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Shailesh Patil ,  Jing Jiang ,  Wei Zeng ,  Alexei Gorokhov ,  Junyi Li

IPC: H04W72/14 ,  H04W72/12 ,  H04W74/04 ,  H04W76/14

Abstract: An apparatus may receive, from a scheduling entity, sidelink grant information in a downlink control channel. After receiving the grant information in the downlink control channel, the apparatus may transmit a request-to-send (RTS) signal comprising an indication of a requested duration of time to reserve a sidelink channel for sidelink data. If the sidelink channel is available for the requested duration of time, the apparatus may receive a clear-to-send (CTS) signal configured to indicate an availability of the sidelink channel for the requested duration of time. Subsequently, the apparatus may communicate, with another apparatus different from the scheduling entity, the sidelink data using the sidelink channel during the requested duration of time. Afterwards, the apparatus may communicate acknowledgment information corresponding to the communication of the sidelink signal with the other apparatus. Various additional and alternative aspects are described herein.