公开(公告)号：US11075712B2

公开(公告)日：2021-07-27

申请号：US16405448

申请日：2019-05-07

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li

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

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive an indicator of retransmission scheduling for a plurality of UEs, determine, based on a modulation and coding scheme (MCS) update in the indicator, resources for receiving a retransmission, and receive the retransmission on the determined resources. A base station may receive a negative acknowledgement report from at least one UE of a plurality of UEs, determine a modulation and coding scheme (MCS) update for the at least one UE, generate an indicator of retransmission scheduling for the plurality of UEs, the indicator including the MCS update for the at least one UE, and transmit the indicator.

公开(公告)号：US11039420B2

公开(公告)日：2021-06-15

申请号：US16419784

申请日：2019-05-22

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Chong Li

IPC: H04W72/00 ,  H04L5/00 ,  H04W72/04 ,  H04W8/00 ,  H04W72/12

Abstract: Aspects of the present disclosure provide techniques to reduce overhead and improve resource management by efficiently selecting RSMA spreading code for periodic traffic in IoE devices. For example, in accordance with one technique, the IoE device, during an initial access to the base station, may notify the base station of the traffic periodicity of the IoE device such that the base station may assign a spreading code from a dedicated pool that is not utilized during the periodic access of the device. Additionally or alternatively, another technique to reduce overhead and improve resource management may include the IoE devices broadcasting the selected RSMA spreading code that the IoE devices intends to use in discovery broadcasts (DBs) along with the IoE device traffic periodicity such that the IoE devices may autonomously manage selection of RSMA spreading code that avoids collisions for the same traffic periodicity.

公开(公告)号：US10999858B2

公开(公告)日：2021-05-04

申请号：US16405207

申请日：2019-05-07

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/16 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive an indicator of resource allocation for a plurality of UEs, determine, based at least on a grouping of the plurality of UEs, resources from the resource allocation for receiving data at the UE, and receive the data on the determined resources. A base station may receive a plurality of acknowledgement reports from a plurality of UEs, determine, based on a grouping of the plurality of UEs, a resource allocation for each UE from which a negative acknowledgement was received, and transmit an indicator of the resource allocation.

公开(公告)号：US20210067997A1

公开(公告)日：2021-03-04

申请号：US16998687

申请日：2020-08-20

Applicant: QUALCOMM Incorporated

Inventor： Hua Wang ,  Piyush Gupta ,  Junyi Li ,  Xiaoxia Zhang ,  Jing Sun ,  Yisheng Xue ,  Seyed Ali Akbar Fakoorian

IPC: H04W24/10 ,  H04W24/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for determining sidelink channel metrics using reference signal measurements of reference signals transmitted by other UEs. A first UE may receive a control message from a base station, and the control message may indicate a measurement threshold. The first UE may generate a reference signal measurement of a reference signal transmitted by a second UE via a sidelink channel between the first UE and the second UE. The UE may transmit a measurement report to the base station based at least in part on the measurement satisfying the threshold. The report may be a quantized value of the measurement or a bit indicating that the measurement satisfies the threshold. Based on receipt of the measurement report, the base station may determine to transmit data to the second UE via a transmission to the first UE.

公开(公告)号：US10903945B2

公开(公告)日：2021-01-26

申请号：US16272709

申请日：2019-02-11

Applicant: QUALCOMM Incorporated

Inventor： Rajat Prakash ,  Peerapol Tinnakornsrisuphap ,  Piyush Gupta ,  Mostafa Khoshnevisan ,  Junyi Li

IPC: H04W4/00 ,  H04L1/18 ,  H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04W28/02 ,  H04L1/00 ,  H04W72/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a downlink data communication. The UE may determine a processing time for the downlink data communication based at least in part on at least one of: whether the downlink data communication was scheduled via preconfigured scheduling or via a downlink grant received in a downlink control channel, or whether the downlink data communication is an initial transmission or a retransmission. The UE may transmit acknowledgement or negative acknowledgement (ACK/NACK) feedback, corresponding to the downlink data communication, using a timing indicated by the processing time. Numerous other aspects are provided.

公开(公告)号：US20200344779A1

公开(公告)日：2020-10-29

申请号：US16855793

申请日：2020-04-22

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li

IPC: H04W72/12 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described for efficient allocation of feedback resources and transmission of feedback for low latency communications. A first user equipment (UE) may be allocated uplink resources for uplink transmissions having one or more gaps during which a second UE may transmit feedback information to initiate a retransmission within specified time limits to achieve desired quality of service (QoS) targets. The one or more gaps may be provided through a downlink control information message that indicates uplink resources to the first UE based on a first starting transmission symbol and a first length indicator, and a second starting transmission symbol and a second length indicator. The one or more gaps may be additionally or alternatively provided through one or more reserved symbols, and the first UE may skip uplink transmissions in one or more reserved symbols.

公开(公告)号：US10757691B2

公开(公告)日：2020-08-25

申请号：US15994535

申请日：2018-05-31

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Jing Sun

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

Abstract: Certain aspects of the present disclosure provide techniques for downlink retransmission of Code Block Groups (CBGs) in the event of preemption.

公开(公告)号：US20200100263A1

公开(公告)日：2020-03-26

申请号：US16581678

申请日：2019-09-24

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Srinivas Yerramalli ,  Vinay Joseph ,  Junyi Li

IPC: H04W72/12 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit, and a UE may receive, via a configuration message, a group identifier indicating a group of UEs with which the UE is associated, the group of UEs being one of multiple groups of UEs which are each allocated resources. The base station may transmit the group downlink control information message to the group of UEs, and the UE may receive the group downlink control information message. The UE may determine that the group downlink control information message pertains to the UE by associating the group identifier with the group downlink control information message. The base station and the UE may communicate in accordance with the group downlink control information message based at least in part on the UE being associated with the group to which the group downlink control information message pertains.

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.