公开(公告)号：US11937297B2

公开(公告)日：2024-03-19

申请号：US17380702

申请日：2021-07-20

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Siddhartha Mallik ,  Aleksandar Damnjanovic

IPC: H04W74/08 ,  B30B11/18 ,  B31B70/64 ,  B31B70/81 ,  B31B70/88 ,  B31B155/00 ,  B31B160/10 ,  B31B170/30 ,  B32B3/10 ,  B32B3/28 ,  B32B7/12 ,  B32B37/10 ,  B32B38/00 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/06 ,  H04L5/00 ,  H04W16/14 ,  H04W72/044

CPC classification number: H04W74/0808 ,  B30B11/18 ,  B31B70/645 ,  B31B70/8135 ,  B31B70/88 ,  B32B3/10 ,  B32B3/28 ,  B32B7/12 ,  B32B37/1045 ,  B32B38/0012 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04L5/00 ,  H04W16/14 ,  H04W72/046 ,  H04W74/0816 ,  B31B2155/0014 ,  B31B2155/002 ,  B31B2160/10 ,  B31B2170/30

Abstract: Improvements to asynchronous spatial listen before talk (LBT) procedures are disclosed. In a shared spectrum network spatial LBT procedures are used for directionally targeting the channel reservation process. Prior to transmitting channel reservation signaling, the transmitter and receiver determine an effective interference considering available multiple input, multiple output (MIMO) configuration information. When the effective interference exceeds a predefined threshold, the node may without transmission of its channel reservation signal. Otherwise, when the effective interference remains within the threshold, each node's transmitted channel reservation signal may also identify at least a beamforming matrix either as payload or used to precode the node's channel reservation signal.

公开(公告)号：US11930530B2

公开(公告)日：2024-03-12

申请号：US17341322

申请日：2021-06-07

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang ,  Piyush Gupta ,  Sony Akkarakaran ,  Tao Luo ,  Juan Montojo ,  Peter Gaal

IPC: H04W74/08 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/21 ,  H04W74/00

CPC classification number: H04W74/0808 ,  H04W72/0453 ,  H04W72/21 ,  H04W74/004

Abstract: Certain aspects of the present disclosure provide a method for wireless communications by a transmitter UE. The method generally includes receiving, from a network entity, a downlink control information (DCI) allocating resources in an unlicensed frequency band for multiple physical sidelink shared channel (PSSCH) transmissions to at least one receiver UE across transmission time intervals (TTIs), performing a listen-before-talk (LBT) channel access procedure in the TTIs, and transmitting at least one LBT report to the network entity on a physical uplink control channel (PUCCH) resource that occurs before another PUCCH resource used for transmitting acknowledgment feedback for the PSSCH transmissions.

公开(公告)号：US20240040612A1

公开(公告)日：2024-02-01

申请号：US17877734

申请日：2022-07-29

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/00

CPC classification number: H04W74/08 ,  H04W74/002

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for sidelink channel access via a floating channel occupancy. In some aspects, a cellular device may operate within a proximity of one or more wireless fidelity (Wi-Fi) devices and may conditionally support a search space associated with a floating sidelink synchronization signal block (SSB). For example, if the cellular device detects that the Wi-Fi devices are precluding the cellular device from acquiring channel access or otherwise making it relatively more difficult for the cellular device to acquire channel access, the cellular device may enable or active a use of the search space associated with the floating sidelink SSB. If enabled or activated, the cellular device may transmit a floating sidelink SSB within the search space independent of slot boundaries upon a successful listen-before-talk (LBT) procedure.

公开(公告)号：US20240040567A1

公开(公告)日：2024-02-01

申请号：US17876434

申请日：2022-07-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04

CPC classification number: H04W72/0406 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communication are described. Some wireless communications systems may support a slot transmission detection procedure for sidelink communications. A sidelink user equipment may monitor, during a slot and within one or more subbands, for signaling associated with a first sidelink transmission that corresponds to resources that span a duration of the slot. The signaling may include sidelink control information, a demodulation reference signal, or other sidelink signaling associated with the first sidelink transmission. The user equipment may determine a signal strength or one or more other parameters associated with the signaling. The user equipment may determine whether to transmit a second sidelink transmission having a duration that is less than a first duration of the first sidelink transmission based on the signal strength, the one or more parameters, or both associated with the signaling.

公开(公告)号：US11889555B2

公开(公告)日：2024-01-30

申请号：US17443179

申请日：2021-07-21

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Lik Hang Silas Fong ,  Piyush Gupta ,  Tao Luo ,  Juan Montojo ,  Peter Gaal

IPC: H04W74/08 ,  H04W52/52 ,  H04W72/0446 ,  H04W74/00

CPC classification number: H04W74/0816 ,  H04W52/52 ,  H04W72/0446 ,  H04W74/002

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a user equipment (UE) may include performing a clear channel assessment (CCA), transmitting, to a first UE based on the CCA being successful, a first transport block (TB) via a first sub-PSSCH associated with a first sub-slot, and transmitting, to at least one of the first UE or a second UE, a second TB via a PSSCH associated with a slot.

公开(公告)号：US11863972B2

公开(公告)日：2024-01-02

申请号：US17237804

申请日：2021-04-22

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Jing Sun ,  Xiaoxia Zhang ,  Yisheng Xue ,  Piyush Gupta

IPC: H04W72/21 ,  H04W72/1263 ,  H04W72/044 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04W72/21 ,  H04W72/044 ,  H04W72/1263 ,  H04W72/23 ,  H04W72/51

Abstract: Example implementations include a method, apparatus and computer-readable medium of wireless communication over a sidelink between a transmitting user equipment (UE) and a receiving UE. The receiving UE may receive a configuration of multiple resource pools for sidelink communications. The transmitting UE may transmit at least two repetitions of a sidelink control information (SCI) on at least two of the multiple resource pools. Each repetition of the SCI includes a reservation for a physical sidelink shared channel (PSSCH) on a respective resource pool. The receiving UE may perform soft combining on the at least two repetitions of the SCI to determine resources for the PSSCH. The receiving UE may decoding the PSSCH based on the SCI, for example, by combining multiple repetitions of the PSSCH on the reservations indicated by the SCI.

公开(公告)号：US20230396377A1

公开(公告)日：2023-12-07

申请号：US18453869

申请日：2023-08-22

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Tao Luo ,  Jing Sun ,  Arumugam Chendamarai Kannan ,  Sungwoo Park ,  Yisheng Xue

IPC: H04L5/00 ,  H04W28/02 ,  H04W56/00 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04L5/0032 ,  H04W28/0236 ,  H04W56/001 ,  H04W72/23 ,  H04W72/51

Abstract: In one aspect, a method includes determining a first SSB burst set information corresponding to a first PCI; determining a second SSB burst set information corresponding to a second PCI, the second PCI different from the first PCI; and monitoring at least a first SSB from the first SSB burst set and at least a second SSB from the second SSB burst set. In another aspect, a method includes determining a number of RSRP reports to send based a CSI report request; transmitting a first RSRP report for a first beam of a plurality of beams, the first beam associated with a first group of beams of a plurality of groups; and transmitting a second RSRP report for a second beam of the plurality of beams, the second beam associated with a second group of beams of the plurality of groups.

公开(公告)号：US20230389088A1

公开(公告)日：2023-11-30

申请号：US17824660

申请日：2022-05-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08

CPC classification number: H04W74/0875 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described that provide for user equipment (UE) in sidelink communications to agree on transmission directions and a traffic pattern for a sidelink channel, where a transmitting UE has higher priority in channel access than a receiving UE. When establishing a connection via sidelink, two or more UEs may agree on a resource pattern for a set of sidelink resources where a first UE has higher priority than a second UE for a first subset of resources. The first UE may be given higher priority in the first subset of resources through adjustments to a channel access procedure for requesting channel access, adjustments to one or more access thresholds or channel access priority classes, contention window adjustments, or any combinations thereof. Layer one signaling may be used to reconfigure channel access priority and the traffic pattern between UEs.

公开(公告)号：US11832218B2

公开(公告)日：2023-11-28

申请号：US17387891

申请日：2021-07-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/70 ,  H04W92/18 ,  H04W72/02 ,  H04W28/26 ,  H04W72/0446 ,  H04W4/46

CPC classification number: H04W72/02 ,  H04W4/70 ,  H04W28/26 ,  H04W72/0446 ,  H04W4/46 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling indicating an aggregated sidelink resource reservation rule for reserving time-contiguous transmission time intervals. The UE may transmit a sidelink control reservation message based on the aggregated sidelink resource reservation rule. The sidelink control reservation message may indicate a starting transmission time interval for reserving a set of time-contiguous transmission time intervals in a sidelink shared channel. Additionally or alternatively, the sidelink control reservation message may indicate a quantity of the set of time-contiguous transmission time intervals reserved for transmission of a set of aggregated sidelink messages. The UE may transmit the set of aggregated sidelink messages via the set of time-contiguous transmission time intervals of the sidelink shared channel indicated in the sidelink control reservation message.

公开(公告)号：US11818737B2

公开(公告)日：2023-11-14

申请号：US16719471

申请日：2019-12-18

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/51 ,  H04L5/00 ,  H04W88/04 ,  H04W72/30

CPC classification number: H04W72/51 ,  H04L5/0037 ,  H04L5/0055 ,  H04W72/30 ,  H04W88/04

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for forward/retransmitting a data transmission to a target UE through a helper UE. A helper UE may receive a data transmission from a network node, determining whether the received data transmission is intended for a target UE or for the helper UE itself, based on a control message, and retransmitting the data transmission to the target UE upon determining that the data transmission is intended for the target UE. A network node such as a base station may transmit a control message to at least a help UE, the control message comprising an indicator of whether a data transmission is intended for the helper UE or a target UE and transmit the data transmission to at least the helper UE and the target UE.