公开(公告)号：US12016021B2

公开(公告)日：2024-06-18

申请号：US16821728

申请日：2020-03-17

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Sony Akkarakaran ,  Ozcan Ozturk ,  Jing Sun ,  Tao Luo ,  Linhai He

IPC: H04W72/21 ,  H04J3/02 ,  H04W74/08 ,  H04W74/0833

CPC classification number: H04W72/21 ,  H04J3/02 ,  H04W74/0833

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a downlink beam in uplink control information of a random access message, wherein the downlink beam is different from a default beam corresponding to a preamble of the random access message and a random access occasion in which the random access message is transmitted, or wherein the downlink beam is selected from a set of multiple downlink beams corresponding to the random access occasion. The UE may monitor for at least one of a random access response or a downlink communication subsequent to the random access response using the downlink beam indicated in the uplink control information. Numerous other aspects are provided.

公开(公告)号：US12010620B2

公开(公告)日：2024-06-11

申请号：US17443236

申请日：2021-07-22

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Junyi Li ,  Chih-Hao Liu ,  Ozcan Ozturk ,  Piyush Gupta ,  Tao Luo

IPC: H04W52/02

CPC classification number: H04W52/0229

Abstract: Wireless communications systems and methods related to power saving over a forward link of a star topology of user equipment (UE) are provided. In some aspects, a first UE may monitor the forward link connecting a second UE to the first UE for a control message transmitted by the second UE to the first UE. The first UE may then establish an operational mode based on the result of the monitoring for the control message, such as but not limited to a power saving mode or an active mode.

公开(公告)号：US12004173B2

公开(公告)日：2024-06-04

申请号：US17327211

申请日：2021-05-21

Applicant: QUALCOMM Incorporated

Inventor： Lik Hang Silas Fong ,  Jing Sun ,  Piyush Gupta ,  Xiaojie Wang ,  Yisheng Xue ,  Sony Akkarakaran

IPC: H04W72/14 ,  H04L1/00 ,  H04W72/12 ,  H04W72/1263 ,  H04W72/23 ,  H04W72/50

CPC classification number: H04W72/23 ,  H04L1/0061 ,  H04W72/1263 ,  H04W72/535

Abstract: Methods, systems, and devices for wireless communications are described. A base station may send coupled configured grants to a transmitter user equipment (UE) and a receiver UE, respectively. For example, when transmitting a pair of configured grants that includes a first configured grant sent to a first UE and a second configured grant sent to a second UE, the base station may include an indication in each of the configured grants that sidelink semi-persistent scheduling resources are activated or deactivated. Additionally, the configured grants may indicate which UE is a receiver and which UE is a transmitter. For instance, the first configured grant may indicate that a first UE is to be the transmitter and a second configured grant indicate that a second UE is to be the receiver.

公开(公告)号：US11991668B2

公开(公告)日：2024-05-21

申请号：US17304515

申请日：2021-06-22

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Yisheng Xue ,  Xiaoxia Zhang ,  Juan Montojo ,  Peter Gaal ,  Ozcan Ozturk ,  Rajat Prakash ,  Iyab Issam Sakhnini

IPC: H04W72/02 ,  H04L1/00 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/02 ,  H04L1/0003 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a configuration of a resource pool for configured grant uplink communications and one or more parameters for identifying a resource set from the resource pool, wherein the resource set is a subset of resources in the resource pool; identify the resource set of the resource pool based at least in part on the one or more parameters; and transmit a configured grant uplink communication in a resource selected from the resource set. Numerous other aspects are provided.

公开(公告)号：US11979906B2

公开(公告)日：2024-05-07

申请号：US17446283

申请日：2021-08-27

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W72/00 ,  H04B17/318 ,  H04W72/56 ,  H04W74/0808

CPC classification number: H04W74/0808 ,  H04B17/318 ,  H04W72/56

Abstract: In one aspect, a method of wireless communication includes transmitting, by a user equipment (UE), a first transmission in a first Channel Occupancy Time (COT) for a NR-U sidelink channel. The method also includes reserving, by the UE, a resource in a non-shared portion of a second COT and performing, by the UE, a Listen-Before-Talk (LBT) Category (CAT) 4 operation at a start of the second COT, wherein the second COT is associated with the UE. The method includes performing, by the UE, a continuous transmission operation in the second COT based on successfully performing the LBT CAT 4 operation. The method further includes transmitting, by the UE, a second transmission in the reserved resource of the non-shared portion of the second COT based on successfully performing a second LBT CAT 1 or 2 operation. Other aspects and features are also claimed and described.

公开(公告)号：US11974318B2

公开(公告)日：2024-04-30

申请号：US17249250

申请日：2021-02-24

Applicant: QUALCOMM INCORPORATED

Inventor： Giovanni Chisci ,  Yisheng Xue ,  Jing Sun ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Xiaoxia Zhang

IPC: H04W74/02 ,  H04W16/14 ,  H04W72/0446

CPC classification number: H04W74/02 ,  H04W16/14 ,  H04W72/0446

Abstract: Wireless communications systems and methods related to performing contention credit-based listen-before-talk (LBT) for communications over a shared radio frequency band (e.g., in a shared spectrum or in an unlicensed spectrum) are provided. A wireless communication device performs a first clear channel assessment (CCA) including a first countdown. The wireless communication device transmits, after a gap period from the first countdown, a first communication signal. The wireless communication device performs a second CCA including a second countdown. The wireless communication device transmits, beginning before an end of the second countdown, a second communication signal based on at least a first contention credit associated with the gap period.

公开(公告)号：US11950191B2

公开(公告)日：2024-04-02

申请号：US18313972

申请日：2023-05-08

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Yisheng Xue ,  Aleksandar Damnjanovic ,  Tao Luo ,  Juan Montojo

IPC: H04W52/24 ,  H04W52/10 ,  H04W52/30 ,  H04W52/38

CPC classification number: H04W52/30 ,  H04W52/10 ,  H04W52/247 ,  H04W52/383

Abstract: Disclosed are systems and techniques for performing sidelink communications. For instance, a first client device can determine a first transmit power parameter for transmitting sidelink communications. The first transmit power parameter can either be received from a base station associated with the first client device or it can be a default parameter based on the first client device not being associated with a base station. The first client device can transmit, to a second client device, a first sidelink transmission having a first power level corresponding to the first transmit power parameter. The first client device can receive, from the second client device, a first sidelink reception having a second power level corresponding to a second transmit power parameter.

公开(公告)号：US11916633B2

公开(公告)日：2024-02-27

申请号：US17339095

申请日：2021-06-04

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Chih-Hao Liu ,  Jing Sun ,  Xiaoxia Zhang ,  Shuanshuan Wu

IPC: H04W4/00 ,  H04B7/0456 ,  H04B7/06 ,  H04W80/02 ,  H04W92/18

CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04W80/02 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to another UE, a sidelink channel state information reference signal (S-CSI-RS) and an indication associated with triggering a non-codebook based precoded S-CSI-RS. The UE may receive, from the other UE, the non-codebook based precoded S-CSI-RS. The UE may transmit, to the other UE, a non-codebook based channel state information (CSI) report medium access control (MAC) control element (MAC-CE) that includes an indication of one or more selected precoding beams based at least in part on the non-codebook based precoded S-CSI-RS. Numerous other aspects are described.

公开(公告)号：US20240064799A1

公开(公告)日：2024-02-22

申请号：US17889344

申请日：2022-08-16

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Chih-Hao Liu ,  Xiaoxia Zhang ,  Giovanni Chisci

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/04 ,  H04W56/00

CPC classification number: H04W74/0808 ,  H04W16/14 ,  H04W72/0406 ,  H04W56/001

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for sidelink control signaling using unlicensed spectrum. Wireless devices may perform a listen-before-talk (LBT) procedure before accessing a channel of the unlicensed spectrum, and may be unable to access the unlicensed spectrum in some circumstances. In some implementations, a wireless device may leverage resources available for transmitting a sidelink synchronization signal block (S-SSB) for additionally transmitting control signaling. For example, a wireless device may multiplex (such as frequency domain multiplexing) a control signal with a S-SSB, which may be transmitted in accordance with a relaxed LBT threshold. In some implementations, the control signal may include information such as an indication of LBT failure or an LBT status, or may be used to detect a radio link failure (RLF), or may be used the short control signal to synchronize sidelink clusters, among other examples.

公开(公告)号：US11910359B2

公开(公告)日：2024-02-20

申请号：US17484117

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Junyi Li ,  Piyush Gupta ,  Ozcan Ozturk ,  Tao Luo ,  Peter Gaal

IPC: H04W72/02 ,  H04L1/1867 ,  H04W72/0453 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/20

CPC classification number: H04W72/02 ,  H04L1/1896 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a first sidelink control information (SCI) message during a mini-slot of a control resource pool which is decoupled from a data resource pool for sidelink communications. The first SCI message may indicate a data message to be transmitted on a subchannel of the data resource pool to a second UE, where resources between the control resource pool and the data resource pool are mapped. The UE may receive a feedback message from the second UE for the first SCI message during a second mini-slot of the control resource pool. The feedback message may indicate whether a collision or strong interference was detected for the first SCI message. The UE may determine whether to transmit the data message or retransmit the first SCI message based on the feedback message.