公开(公告)号：US20230239920A1

公开(公告)日：2023-07-27

申请号：US17585128

申请日：2022-01-26

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W72/04 ,  H04W28/26

CPC classification number: H04W74/0808 ,  H04W72/0406 ,  H04W28/26

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may obtain a channel occupancy time (COT) in an unlicensed frequency spectrum band. The COT may include an initial time interval for an initial transmission and a subsequent time interval for a subsequent transmission. In the initial time interval, the UE may transmit control information and data to another UE, where the control information indicates the subsequent time interval. The other UE may selectively perform communications during the subsequent time interval. The UE may perform the subsequent transmission during the subsequent time interval.

公开(公告)号：US11711849B2

公开(公告)日：2023-07-25

申请号：US17301652

申请日：2021-04-09

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W74/08 ,  H04W72/23

CPC classification number: H04W74/0816 ,  H04W72/23 ,  H04W74/0808

Abstract: Wireless communications systems and methods related to sidelink communications in an unlicensed frequency band are provided. A user equipment (UE) receives, from a base station (BS), a first downlink control information (DCI) associated with a first listen-before-talk (LBT) time. The UE determines a first sidelink transmission opportunity for communicating in an unlicensed frequency band at the first LBT time based on the first DCI.

公开(公告)号：US11711814B2

公开(公告)日：2023-07-25

申请号：US17091374

申请日：2020-11-06

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Ozcan Ozturk ,  Xiaoxia Zhang

IPC: H04W72/23 ,  H04L5/00 ,  H04W74/08 ,  H04W92/18

CPC classification number: H04W72/23 ,  H04L5/0053 ,  H04L5/0055 ,  H04W74/0808 ,  H04L5/0007 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a resource grant for at least one sidelink channel, wherein the resource grant indicates a first uplink resource for transmitting sidelink transmission acknowledgement messages and a second uplink resource for transmitting listen-before-talk statuses. The UE may transmit, to the base station and on the second uplink resource, an indication of at least one status associated with a listen-before-talk procedure used on the at least one sidelink channel. Numerous other aspects are provided.

公开(公告)号：US11711775B2

公开(公告)日：2023-07-25

申请号：US17308821

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Qiang Wu ,  Xiaoxia Zhang ,  Jing Sun ,  Sungwoo Park ,  Jun Ma ,  Mehmet Izzet Gurelli ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

IPC: H04J11/00 ,  H04W4/021 ,  H04W56/00 ,  H04L27/26

CPC classification number: H04W56/001 ,  H04J11/0073 ,  H04J11/0076 ,  H04L27/26025 ,  H04W4/021

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may identify an energy per resource element (EPRE) ratio between a synchronization signal block (SSB) symbol containing a primary synchronization signal (PSS) and an SSB symbol containing a secondary synchronization signal (SSS), a physical broadcast channel (PBCH), or both, based on an operating band for the UE, a bandwidth of the SSB symbol containing the PSS and the SSB symbol containing the SSB, the PBCH, or both. The EPRE ratio may be based on maximum regulatory equivalent isotropically radiated power (EIRP) limits, maximum regulatory power spectral density (PSD) limits for the band, or both. The EPRE ratios may be different for different SSB symbols, when different SSB symbols have different bandwidths. A base station may configure and transmit, and a UE may receive, the SSB according to the identified EPRE ratio.

公开(公告)号：US11711683B2

公开(公告)日：2023-07-25

申请号：US17078905

申请日：2020-10-23

Applicant: QUALCOMM incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang ,  Yongbin Wei

IPC: H04W8/00 ,  H04W72/02 ,  H04L5/00 ,  H04W72/1263 ,  H04W92/18

CPC classification number: H04W8/005 ,  H04L5/0055 ,  H04W72/02 ,  H04W72/1263 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. In a first case, a first user equipment (UE) may transmit to a second UE a sidelink discovery message preamble corresponding to a sidelink discovery message. The first UE may identify resources for transmission of the sidelink discovery messages based on the sidelink discovery message preamble. The first UE may either transmit the sidelink discovery message to the second UE or may receive the sidelink discovery message from the second UE using the identified resources for the transmission of the sidelink discovery message. In some cases, the second UE may transmit sidelink control information (SCI) to the first UE, and may transmit a sidelink discovery message to the first UE based on resources identified in the SCI. In some cases, the first UE may transmit the sidelink discovery message without transmission of a preamble or a SCI.

公开(公告)号：US11706709B2

公开(公告)日：2023-07-18

申请号：US17360697

申请日：2021-06-28

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Junyi Li ,  Ozcan Ozturk ,  Chih-Hao Liu ,  Sony Akkarakaran

IPC: H04W52/02

CPC classification number: H04W52/0216

Abstract: Methods, systems, and devices for wireless communications are described. A hub user equipment (UE) in a star topology may broadcast to a set of peripheral UEs indicating slots when the hub UE will not be in a transmission mode. The hub UE may broadcast a slot format indication to the peripheral UEs to indicate operating modes in a set of slots. In a first group of slots, the hub UE may operate in a forward mode, transmitting sidelink communications to the peripheral UEs. In a second group of slots, the hub UE may operate in a reverse mode, receiving sidelink communications from the peripheral UEs. In slots when the hub UE operates in the reverse mode, if a peripheral UE does not have data or control information, the peripheral UE may enter a sleep mode in one or more slots of the second group to save power.

公开(公告)号：US20230217451A1

公开(公告)日：2023-07-06

申请号：US17647305

申请日：2022-01-06

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Jing Sun ,  Xiaoxia Zhang ,  Jun Ma

IPC: H04W72/14 ,  H04W72/04

CPC classification number: H04W72/14 ,  H04W72/042 ,  H04W72/046 ,  H04W72/0446

Abstract: Systems, methods, and devices for wireless communication that support mechanisms for non-coherent, sequence-based downlink control signaling in a wireless communication system. In aspects, the mechanisms for non-coherent, sequence-based downlink control signaling may include a new non-coherent, sequence-based downlink control channel or signal transmitted from a base station to a user equipment (UE) and configured to convey information bits (e.g., control information bits) to the UE. The UE may receive a signal transmitted over the new non-coherent, sequence-based downlink control channel and may decode the signal to extract the control information. The UE may then apply a control based on the control information received from the base station in the signal over the non-coherent, sequence-based downlink control channel.

公开(公告)号：US11695530B2

公开(公告)日：2023-07-04

申请号：US17150910

申请日：2021-01-15

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Zhifei Fan ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo ,  Wooseok Nam ,  Qingjiang Tian

IPC: H04L5/00 ,  H04W72/02 ,  H04W72/23

CPC classification number: H04L5/0053 ,  H04W72/23

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for DMRS design for DFT-s-OFDM with increased subcarrier spacing. A UE may receive an assignment to transmit on a set of RBs. The set of RBs may be contiguous within a carrier that includes greater than 110 RBs. The UE may transmit DMRS on each RE of one or more adjacent symbols of the set of RBs.

公开(公告)号：US11690024B2

公开(公告)日：2023-06-27

申请号：US17160305

申请日：2021-01-27

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/10 ,  H04W52/24 ,  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：US11690022B2

公开(公告)日：2023-06-27

申请号：US17188589

申请日：2021-03-01

Applicant: QUALCOMM incorporated

Inventor： Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W52/08 ,  H04W52/24

CPC classification number: H04W52/242

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for managing transmit power control. In one aspect, a wireless device may receive a message including a path loss value and may transmit a signal to a UL Rx point using an uplink transmit power associated with the received path loss value. In another aspect, a wireless device may receive a reference signal, and a message including an offset value, and may transmit a signal to a UL Rx point using an uplink transmit power including a downlink path loss value associated with the reference signal minus the offset value. In another aspect, a base station may obtain a power measurement of a signal from a wireless device and may send to the wireless device a path loss value associated with the received power measurement, or an offset value associated with the received power measurement.