公开(公告)号：US11589338B2

公开(公告)日：2023-02-21

申请号：US17152437

申请日：2021-01-19

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Junyi Li ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Tao Luo

IPC: H04W72/04 ,  H04L5/14 ,  H04W72/0446

Abstract: Certain aspects of the present disclosure provide techniques for enhanced sidelink (SL) control signaling with time division duplexing (TDD). A method that may be performed by a first user equipment (UE) may include receiving a TDD configuration indicating resources of a resource pool available for SL transmissions between the first UE and at least a second UE and exchanging SL communications with the second UE in one or more slots or symbols based, at least in part, on the TDD configuration. The TDD configuration may define one or more of the slots or symbols as flexible slots or symbols that may be configured as downlink (DL) or uplink (UL) slots or symbols. The TDD configuration may also identify one or more of the slots or symbols as UL slots or symbols and one or more slots or symbols as DL slots or symbols.

公开(公告)号：US11582781B2

公开(公告)日：2023-02-14

申请号：US16536215

申请日：2019-08-08

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang

IPC: H04W72/12 ,  H04W72/1273

Abstract: Wireless communications systems and methods related to serving user equipment devices (UEs) using downlink (DL) semi-persistent scheduling (SPS) in a multi-transmission/reception point (multi-TRP) environment.

公开(公告)号：US11581923B2

公开(公告)日：2023-02-14

申请号：US16488235

申请日：2018-04-04

Applicant: Qualcomm Incorporated

Inventor： Makesh Pravin John Wilson ,  June Namgoong ,  Yu Zhang ,  Alexandros Manolakos ,  Jing Sun ,  Tao Luo ,  Bilal Sadiq

IPC: H04W4/00 ,  H04B7/0452 ,  H04L25/02 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. In multi-user (MU) multiple-input multiple-output (MIMO) wireless communications systems, a base station may perform signaling to indicate information related to ports assigned to one or more UEs. The base station may also signal information regarding ports shared with other UEs, which the UE may use when performing channel estimation. In some examples, the base station may signal a number of ports used per sub-band to the UE or a number of demodulation reference signal (DMRS) ports used by the UE. The base station may signal a sub-set of a total number of ports that are shared by other UEs overlapping with the resource allocation of the UE. The signaling may indicate a number of combs used by the base station in the resource allocation for the UE.

公开(公告)号：US20230045623A1

公开(公告)日：2023-02-09

申请号：US17392625

申请日：2021-08-03

Applicant: QUALCOMM Incorporated

Inventor： Yitao Chen ,  Mostafa Khoshnevisan ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W72/14 ,  H04L5/00

Abstract: This disclosure provides methods for transmissions and retransmissions over a configured grant (CG) physical uplink shared channel (PUSCH) and for transmissions over physical uplink control channel (PUCCH) resources in multi-transmission and reception point (TRP) deployments. A user equipment (UE) may receive signaling configuring a first set of power control parameters and a second set of power control parameters for a CG-PUSCH resource. Additionally or alternatively, the UE may receive signaling activating a first closed-loop power control operation and a second closed-loop power control operation for a PUCCH resource. In some scenarios, the UE may receive a fallback downlink control information (DCI) format activating or scheduling the CG-PUSCH resource or indicating the PUCCH resource. In such scenarios, the UE may employ one or both of a power control selection rule or a transmit power control (TPC) command application rule for a transmission over the CG-PUSCH resource or the PUCCH resource.

公开(公告)号：US20230039613A1

公开(公告)日：2023-02-09

申请号：US17396256

申请日：2021-08-06

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Jing Sun ,  Tao Luo ,  Xiaoxia Zhang ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

IPC: H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive downlink control information (DCI) scheduling multiple physical uplink shared channel (PUSCH) resources for a set of uplink data messages. In some examples, the scheduled PUSCH resources may overlap with reserved or preconfigured uplink resources. The UE may determine, in accordance with a multiplexing configuration, a multiplexing schedule for multiplexing the scheduled PUSCH resources with the reserved or preconfigured uplink resources. The UE may transmit the set of uplink data messages on one or more of the scheduled PUSCH resources based on the multiplexing schedule. The described techniques may enable the UE to transmit the set of uplink data messages with improved reliability based on reducing a number of collisions between the set of uplink data messages and other uplink signals transmitted on the reserved or preconfigured uplink resources.

公开(公告)号：US11576205B2

公开(公告)日：2023-02-07

申请号：US17108453

申请日：2020-12-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/14 ,  H04W74/08 ,  H04W24/10

Abstract: Enhanced measurements for new radio-unlicensed (NR-U) operations are disclosed. Compatible user equipments (UEs) may be configured to perform virtual full listen before talk (LBT) procedures for measurement purposes. The UEs may then compile LBT statistics derived from the virtual LBT procedures and include such statistics in an enhanced measurement report the their serving base stations. The LBT statistics provide a more direct and detailed reflection of the usage of a shared communication channel. Such UEs may further be configured to gather additional LBT statistics from transmission-based LBT procedures in addition to the virtual LBT procedures. The additional direct and detailed usage of a shared channel may then be provided in the enhanced measurement reports in accordance with described aspects.

公开(公告)号：US11576062B2

公开(公告)日：2023-02-07

申请号：US17081630

申请日：2020-10-27

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun ,  Huilin Xu

IPC: H04L5/00 ,  H04W24/08 ,  H04W72/12 ,  H04L1/00 ,  H04W8/24 ,  H04W72/04

Abstract: Since multiple transmit-receive point (TRP) communications may increase the number of physical downlink control channel (PDCCH) candidates or non-overlapped control channel elements (CCEs) without increasing the number of cells, new limits for multi-TRP communications including overbooking may be defined. A UE may determine whether a per scheduled cell limit is greater than a per TRP limit for a primary cell. The UE may identify, based on the determining, a set of search spaces of a PDCCH on which overbooking is permitted. The UE may receive the PDCCH from the primary cell within the slot. The UE may perform blind decoding operations on CCEs within the identified set of search spaces of the PDCCH within at least a total monitoring limit for a group of component carriers having a same sub-carrier spacing (SCS) as the primary cell and the per cell monitoring limit for the primary cell.

公开(公告)号：US11570820B2

公开(公告)日：2023-01-31

申请号：US17127063

申请日：2020-12-18

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W74/08 ,  H04L1/08 ,  H04L41/0677

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect, while transmitting data using at least one first bandwidth on at least one sidelink channel to at least one other UE, one or more failures of a listen-before-talk (LBT) procedure within an amount of time. The UE may transmit, to at least one of a base station or the at least one other UE, a report indicating the one or more failures. Numerous other aspects are described.

公开(公告)号：US11570807B2

公开(公告)日：2023-01-31

申请号：US17241880

申请日：2021-04-27

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W72/14 ,  H04W72/02 ,  H04W76/11 ,  H04W16/28 ,  H04W72/04

Abstract: Wireless communications systems and methods related to multi-hop sidelink are provided. In one aspect, a first user equipment (UE) receives, from a base station (BS), a configured grant (CG) indicating a first CG occasion. The first CG occasion includes a first transmit resource and a first receive window. The first UE receives, from a second UE in the first receive window, a first communication signal including a first data block. The first UE transmits, to a third UE in the first transmit resource, a second communication signal including the first data block.

公开(公告)号：US11570805B2

公开(公告)日：2023-01-31

申请号：US17075430

申请日：2020-10-20

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Jing Sun ,  Tao Luo ,  Xiaoxia Zhang ,  Zhifei Fan ,  Wooseok Nam ,  Akula Reddy ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Srinivas Yerramalli

IPC: H04W72/14 ,  H04W24/08 ,  H04W72/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, in a control channel, a first grant identifying a first set of resources of a first data channel on which the UE is to monitor for one or more second grants, the first data channel being downlink. The UE may monitor the first set of resources in the first data channel for the one or more second grants, the one or more second grants identifying a second set of resources of a second data channel on which the UE is to perform data communications. The UE may transmit, based at least in part on the monitoring the first set of resources, a feedback message associated with receipt of the one or more second grants.