公开(公告)号：US20220360387A1

公开(公告)日：2022-11-10

申请号：US17308704

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

Inventor： Tianyang BAI ,  Xiaoxia ZHANG ,  Zhifei FAN ,  Tao LUO ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Jing SUN ,  Juergen CEZANNE ,  Junyi LI

IPC: H04L5/00 ,  H04W72/04

Abstract: Aspects described herein relate to transmitting or receiving a demodulation reference signal (DMRS) for an antenna port over a set of multiple DMRS frequency tones in a symbol of a slot based on a DMRS configuration, and transmitting or receiving a phase tracking reference signal (PTRS) for the antenna port over a cluster of multiple PTRS frequency tones in the symbol or a different symbol of the slot, wherein the cluster of multiple PTRS frequency tones are adjacent to one another in frequency, and wherein at least one PTRS frequency tone in the cluster of multiple PTRS frequency tones is a non-zero power (NZP) PTRS frequency tone that overlaps, in frequency, at least one DMRS frequency tone in the set of DMRS frequency tones.

公开(公告)号：US20220346074A1

公开(公告)日：2022-10-27

申请号：US17236860

申请日：2021-04-21

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam SAKHNINI ,  Tao LUO ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04W72/04 ,  H04L5/00 ,  H04L25/02

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 configuration for a time domain (TD) control channel element (CCE) bundle that includes at least one TD CCE for single carrier waveforms, wherein a phase continuity is assumed for a duration of the TD CCE bundle. The UE may perform a channel estimation using the TD CCE bundle based at least in part on the phase continuity for the duration of the TD CCE bundle. Numerous other aspects are described.

公开(公告)号：US20220338175A1

公开(公告)日：2022-10-20

申请号：US17234344

申请日：2021-04-19

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00 ,  H04L1/18 ,  H04W76/14

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 across multiple transmission time intervals (TTIs), performing a listen-before-talk (LBT) channel access procedure in the TTIs, and transmitting, to at least one receiver UE, one or more PSSCHs in one or more of the TTIs being indicated as passing the LBT channel access procedure based on the performance.

公开(公告)号：US20220322442A1

公开(公告)日：2022-10-06

申请号：US17224014

申请日：2021-04-06

Applicant: QUALCOMM Incorporated

Inventor： Jianghong LUO ,  Xiaoxia ZHANG ,  Jing SUN ,  Navid ABEDINI ,  Naeem AKL ,  Tao LUO ,  Luca BLESSENT ,  Junyi LI ,  Karl Georg HAMPEL

IPC: H04W74/08 ,  H04B17/336 ,  H04W88/14 ,  H04W24/10

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for channel sensing with self-interference awareness for unlicensed band. A node may transmit, via a first entity of the node, at least one signal during a LBT procedure of a second entity of the node. The at least one signal may include a signal energy. The LBT procedure may be associated with a total measured interference from all detected energy sources. The node may determine a self-interference at the second entity of the node based on the signal energy of the at least one signal transmitted via the first entity of the node and calculate an interference from at least one other source based on a difference between the total measured interference from all detected energy sources and the self-interference determined based on the signal energy of the at least one signal.

公开(公告)号：US20220322428A1

公开(公告)日：2022-10-06

申请号：US17224031

申请日：2021-04-06

Applicant: QUALCOMM Incorporated

Inventor： Jianghong LUO ,  Jing SUN ,  Xiaoxia ZHANG ,  Navid ABEDINI ,  Naeem AKL ,  Tao LUO ,  Luca BLESSENT ,  Karl Georg HAMPEL ,  Junyi LI

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/12

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for UL LBT status reporting. A scheduled node (e.g., a UE) may sense a status of each LBT channel in a set of one or more LBT channels. The set of one or more LBT channels may include at least one of one or more first LBT channels associated with a scheduling grant or one or more second LBT channels unassociated with the scheduling grant. The scheduled node may transmit, to a scheduling node (e.g., a base station), a LBT status report indicative of the status of each LBT channel in the set of one or more LBT channels. The scheduling node may schedule, via a second scheduling grant, a second set of one or more LBT channels based on the status of each LBT channel indicated in the LBT status report.

公开(公告)号：US20220322383A1

公开(公告)日：2022-10-06

申请号：US17683882

申请日：2022-03-01

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Jing SUN ,  Xiaoxia ZHANG ,  Wooseok NAM ,  Tao LUO

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit, and a user equipment (UE) may receive, a physical downlink control channel (PDCCH) that includes a grant for a communication scheduled via the PDCCH prior to a radio resource control configuration indicating a timing offset between the PDCCH and the communication scheduled via the PDCCH. The UE and/or the network node may determine a timing offset between the PDCCH and the communication scheduled via the PDCCH based at least in part on a default time domain resource assignment table for a subcarrier spacing associated with the communication. Numerous other aspects are described.

公开(公告)号：US20220321295A1

公开(公告)日：2022-10-06

申请号：US17651010

申请日：2022-02-14

Applicant: QUALCOMM Incorporated

Inventor： Mohamed Fouad Ahmed MARZBAN ,  Xiaoxia ZHANG ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Zhifei FAN ,  Wooseok NAM ,  Tao LUO ,  Jing SUN ,  Qingjiang TIAN ,  Hemant SAGGAR

IPC: H04L5/00 ,  H04L27/26 ,  H04L1/00

Abstract: Certain aspects of the present disclosure provide techniques for receiving an indication of variable tracking reference signal (TRS). A method that may be performed by a user equipment (UE) includes determining a configuration indicating a value for a variable tracking reference signal (TRS) density, monitoring for TRSs from a base station (BS) according to the indicated value for the variable TRS density, and performing at least one of frequency tracking or timing tracking based on the monitoring.

公开(公告)号：US20220304044A1

公开(公告)日：2022-09-22

申请号：US17834761

申请日：2022-06-07

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Jing SUN ,  Kapil BHATTAD ,  Xiaoxia ZHANG

IPC: H04W72/14 ,  H04L5/00 ,  H04W76/27 ,  H04W72/04 ,  H04W72/12

Abstract: Certain aspects of the present disclosure provide techniques for time-domain resource allocation (TDRA) for multi-transmission time interval (TTI) grants.

公开(公告)号：US20220295550A1

公开(公告)日：2022-09-15

申请号：US17452527

申请日：2021-10-27

Applicant: QUALCOMM Incorporated

Inventor： Jianghong LUO ,  Xiaoxia ZHANG ,  Jing SUN ,  Ozcan OZTURK ,  Navid ABEDINI ,  Junyi LI ,  Karl Georg HAMPEL ,  Luca BLESSENT ,  Naeem AKL ,  Tao LUO

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

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a control node may receive, from a wireless node, a status report of an unlicensed band associated with an unlicensed channel access of the wireless node, wherein the status report indicates listen-before-talk (LBT) failures during the unlicensed channel access of the wireless node. The control node may transmit, to the wireless node, an updated configuration for unlicensed channel access based at least in part on the status report of the unlicensed band. Numerous other aspects are described.

公开(公告)号：US20220279482A1

公开(公告)日：2022-09-01

申请号：US17187316

申请日：2021-02-26

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG ,  Chih-Hao LIU ,  Aleksandar DAMNJANOVIC

IPC: H04W72/02 ,  H04W72/04 ,  H04W72/14 ,  H04W76/11 ,  H04L1/16

Abstract: Certain aspects of the present disclosure provide a user equipment (UE) that may receive an indication of a proximity discovery resource in a physical sidelink feedback channel (PSFCH) symbol from a network entity. The UE may transmit a proximity discovery request including the indication of the proximity discovery resource. The UE may receive a PSFCH sequence associated with the proximity discovery resource from other UEs that may respond to the proximity discovery request. The UE may transmit a bit map sequence indicative of the other UEs to the network entity. The network entity may determine a proximity between the UE and the other UEs based on the bit map sequence. The network entity may schedule the UE and the other UEs based on the proximity.