公开(公告)号：US10595311B2

公开(公告)日：2020-03-17

申请号：US15394074

申请日：2016-12-29

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Shrinivas Kudekar ,  Junyi Li

IPC: H04W72/04 ,  H04L1/00 ,  H04W72/02 ,  H04L1/16 ,  H04L5/00

Abstract: Aspects of the disclosure relate to a sidelink signal communication scheme that provides for rapid adaptation of the sidelink transmission based on feedback received during each transmission time interval (TTI). In this way, any lack of precision in interference measurements, or rapid changes in the amount of interference, which otherwise might cause a modulation and coding scheme (MCS) that was selected for the sidelink transmission to be unsuitable, may be adapted to improve the reliability of the transmission. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US10477580B2

公开(公告)日：2019-11-12

申请号：US15264415

申请日：2016-09-13

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Chong Li ,  Junyi Li

IPC: H04W72/04 ,  H04W74/08 ,  H04W48/16 ,  H04W4/70 ,  H04W8/00 ,  H04W48/08 ,  H04W84/18

Abstract: A user equipment (UE) may, in a first discovery frame, determine whether a discovery resource is available for communication. If the discovery resource is available for communication, the UE may, in a second discovery frame following the first discovery frame, transmit a discovery signal using the discovery resource and puncture the discovery signal during a listening window. The UE may detect the energy of a received signal at the discovery resource during the listening window. The UE may abandon the discovery resource if the detected energy is above a threshold. In some example, the listening window may have a fixed duration and a beginning that is randomly selected from a predetermined set of values. In some example, the listening window may have a variable duration and an end that matches an end of the second discovery frame.

公开(公告)号：US20190297636A1

公开(公告)日：2019-09-26

申请号：US16358538

申请日：2019-03-19

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li

IPC: H04W72/12 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described that support group common control channel and bandwidth part (BWP) management in wireless communications. A group downlink control channel transmission may include information from which each user equipment (UE) transmitting a negative acknowledgement (NACK) message can determine its unique retransmission resource assignment and a BWP for the retransmission. Different BWPs may be used for downlink transmissions to different UEs and downlink retransmissions responsive to the NACK messages may be transmitted using the original BWP of the UEs or a different BWP.

公开(公告)号：US20190261278A1

公开(公告)日：2019-08-22

申请号：US16277948

申请日：2019-02-15

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyl Li ,  Christophe Chevallier

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

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：US20190246321A1

公开(公告)日：2019-08-08

申请号：US16264423

申请日：2019-01-31

Applicant: QUALCOMM Incorporated

Inventor： Chong Li ,  Junyi Li ,  Piyush Gupta

IPC: H04W36/00 ,  H04B7/024 ,  H04L5/00 ,  H04W36/08 ,  H04B17/309

CPC classification number: H04W36/0069 ,  H04B7/024 ,  H04B17/309 ,  H04L5/005 ,  H04W36/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a group of transmission reception points (TRPs) in a coordinated multi-point (CoMP) system. The UE may transmit information associated with measurements between the UE and a TRP of the group of TRPs. The UE may receive, based at least in part on transmitting the information associated with measurements between the UE and the TRP, an indication of resources for a first CoMP cluster of the CoMP system. The UE may communicate with the TRP via a resource pool of the TRP based at least in part on the indication of resources.

公开(公告)号：US10356733B2

公开(公告)日：2019-07-16

申请号：US15436668

申请日：2017-02-17

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li

IPC: H04W56/00 ,  H04W16/14 ,  H04W74/08 ,  H04W76/14

Abstract: Aspects of the disclosure relate to distributed joint access of an unlicensed sidelink channel Each sidelink device may perform independent and asynchronous listen before talk (LBT) of the unlicensed sidelink channel with a respective back-off timer value. The first sidelink device to complete back-off may transmit a joint access synchronization (JAS) signal indicating a duration of time that the unlicensed sidelink channel may be accessed by sidelink devices. Synchronized access sharing of the unlicensed sidelink channel across different active sidelinks may then be achieved through distributed handshake signaling.

公开(公告)号：US10321401B2

公开(公告)日：2019-06-11

申请号：US15389320

申请日：2016-12-22

Applicant: QUALCOMM Incorporated

Inventor： Chong Li ,  Junyi Li ,  Piyush Gupta

IPC: H04W52/02 ,  H04W52/32 ,  H04W72/08 ,  H04W52/38 ,  H04W52/24 ,  H04W76/14 ,  H04W74/08 ,  H04W92/18 ,  H04W52/26 ,  H04W74/00 ,  H04W88/02 ,  H04W88/08 ,  H04W52/28

Abstract: A first device may configure a second device, such as a sidelink receiver, so that an interference protection zone surrounding the second device may be dynamically adjusted in size based, for example, on various objectives and/or use cases recognized by the first device. The interference protection zone may be, for example, an area surrounding the second device, within which neighboring devices may be silenced. Changes to the interference protection zone may be achieved by providing a dynamic clear-to-send (CTS) transmit power scaling parameter, that is different from a pre-assigned constant parameter for CTS power control stored at the second device, to the second device from the first device. The second device may calculate CTS channel power using at least the dynamic CTS transmit power scaling parameter and the received RTS channel power. The second device may send a CTS message in a CTS channel at the calculated CTS channel power.

公开(公告)号：US10306652B2

公开(公告)日：2019-05-28

申请号：US15680052

申请日：2017-08-17

Applicant: QUALCOMM Incorporated

Inventor： Chong Li ,  Junyi Li ,  Piyush Gupta

IPC: H04W72/08 ,  H04W72/04 ,  H04W72/10 ,  H04L1/18 ,  H04W74/08 ,  H04L25/02 ,  H04L1/00

Abstract: Wireless communications systems and methods related to managing interference among feedback transmissions are provided. A first wireless communication device receives, from a second wireless communication device, a first forward data transmission request signal over a first link in a first link direction, wherein the first forward data transmission request signal is associated with a first feedback transmission over the first link in a second link direction opposite the first link direction. The first wireless communication device yields, in response to the first forward data transmission request signal, access to a channel resource for the first feedback transmission based on at least an interference tolerance level of the second wireless communication device and an interference level on the first feedback transmission from the first wireless communication device.

公开(公告)号：US10244522B2

公开(公告)日：2019-03-26

申请号：US15711751

申请日：2017-09-21

Applicant: QUALCOMM Incorporated

Inventor： Chong Li ,  Piyush Gupta ,  Junyi Li

IPC: H04W76/14 ,  H04L1/18 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14 ,  H04W8/00 ,  H04W48/12 ,  H04W4/70

Abstract: Methods, systems, and devices for wireless communication are described. In an FDD system, a UE may identify an indicator associated with ultra-reliable low latency communications (URLLC) while communicating in a sidelink channel. The UE may also identify dedicated uplink resources in the sidelink channel, and reserve the dedicated uplink resources. The dedicated uplink resources may be reserved for an acknowledgement/negative acknowledgement (ACK/NACK) feedback or for a scheduling request (SR). URLLC data may be communicated, and the reserved uplink resources may be utilized to transmit an ACK/NACK feedback or a SR. In a TDD system, a base station may transmit information identifying dedicated resources for URLLC data. In some cases, a base station may transmit an indicator channel, which a sidelink UE may monitor to determine the presence of URLLC data, and respond accordingly.

公开(公告)号：US10057352B2

公开(公告)日：2018-08-21

申请号：US14846630

申请日：2015-09-04

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li

IPC: H04B7/204 ,  H04B7/14 ,  H04L29/08 ,  H04W72/04 ,  H04W4/70 ,  H04W88/04

CPC classification number: H04L67/12 ,  H04W4/70 ,  H04W72/0446 ,  H04W88/04 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/166 ,  Y02D70/21 ,  Y02D70/22

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.