公开(公告)号：US20190268933A1

公开(公告)日：2019-08-29

申请号：US16281429

申请日：2019-02-21

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Kapil Bhattad ,  Ananta Narayanan Thyagarajan ,  Tamer Kadous

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

Abstract: Over-the-air (OTA) dynamic time division duplex (TDD) is disclosed with a channel use indicator (CUI) receiver (CUI-R) signal multiplexed in uplink transmissions. According to various aspects, a user equipment (UE) may receive a downlink grant from a serving base station, in which the downlink grant identifies downlink transmissions in one or more subsequent communication slots. The UE may identify a trigger for transmission of a channel usage signal associated with the grant that may be received by neighboring UEs that may potentially interfere. The UE transmits the channel usage signal in a next scheduled uplink region and then receives downlink data from the serving base station according to the downlink grant. If the neighboring UE receives a conditional uplink grant, then it may proceed with uplink transmissions when it fails to detect the channel usage signal from the UE.

公开(公告)号：US12237895B2

公开(公告)日：2025-02-25

申请号：US16922916

申请日：2020-07-07

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Ananta Narayanan Thyagarajan ,  Xiaoxia Zhang ,  Kapil Bhattad ,  Pravjyot Singh Deogun

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/23 ,  H04W72/53

Abstract: This disclosure provides systems, methods, and apparatuses for the identification of a channel state information reference signal (CSI-RS) resource. In some aspects, a UE that receives the CSI-RS may determine CSI feedback based at least in part on the CSI-RS after detecting the CSI-RS resource that includes the CSI-RS. Signaling or techniques for when no CSI-RS is detected (such as when the base station fails a channel access operation for all available CSI-RS resources) are also provided. Furthermore, approaches for rate matching for a shared channel around CSI-RS resources or for CSI interference management (CSI-IM) resources are provided, as well as CSI reporting approaches for cases when the UE fails to transmit CSI feedback due to a failed channel access operation, such as a triggered or re-triggered CSI report.

公开(公告)号：US12150172B2

公开(公告)日：2024-11-19

申请号：US17654649

申请日：2022-03-14

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Xiaoxia Zhang ,  Tanumay Datta ,  Ananta Narayanan Thyagarajan ,  Jing Sun

IPC: H04W74/0808 ,  H04W16/14 ,  H04W74/00

Abstract: Wireless communications systems and methods are provided. A method of wireless communication may include performing a first listen-before-talk (LBT) procedure associated with a channel, wherein a channel occupancy time (COT) for the channel is acquired based on the first LBT being successful, communicating a first communication signal in a first link direction during the COT, switching from the first link direction to a second link direction different from the first link direction, and communicating after the switching, a second communication signal in the second link direction without performing a second LBT.

公开(公告)号：US12133271B2

公开(公告)日：2024-10-29

申请号：US17755565

申请日：2020-11-04

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Ananta Narayanan Thyagarajan ,  Kapil Bhattad ,  Xiaoxia Zhang

IPC: H04W74/0833 ,  H04W24/08 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08

CPC classification number: H04W74/0841 ,  H04W24/08 ,  H04W72/0446 ,  H04W74/006 ,  H04W74/0866

Abstract: Wireless communications systems and methods related frame based equipment (FBE) communications in a wireless communication network are provided. A user equipment (UE) receives, from a base station (BS), system information including a frame based equipment (FBE) configuration indicating a plurality of frame periods. Each frame period of the plurality of frame periods includes a gap period, where a start or an end of the gap period of a first frame period of the plurality of frame periods is aligned to a beginning of a radio frame. The UE communicates, with the BS, a communication based on the FBE configuration.

公开(公告)号：US12132673B2

公开(公告)日：2024-10-29

申请号：US18169106

申请日：2023-02-14

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Tanumay Datta ,  Ananta Narayanan Thyagarajan ,  Jing Sun ,  Xiaoxia Zhang ,  Zhifei Fan

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/21

CPC classification number: H04L5/0046 ,  H04L5/0007 ,  H04L27/2604 ,  H04W72/21

Abstract: Certain aspects of the present disclosure provide techniques for enhanced physical uplink control channel (PUCCH) transmission. In some cases, a UE obtains payload bits to be conveyed in a physical uplink control channel (PUCCH) transmission via an interlace of resource blocks (RBs), determines a group of the RBs available to the UE, and transmits the payload bits using the determined group of RBs, wherein the transmitting involves modulating different RBs of the group by at least one of different payload bits or sequences.

公开(公告)号：US11950249B2

公开(公告)日：2024-04-02

申请号：US17248830

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Kapil Bhattad ,  Ananta Narayanan Thyagarajan

IPC: H04W72/23

CPC classification number: H04W72/23

Abstract: Wireless communications systems and methods related to communicating in a communication medium are provided. A first wireless communication device communicates with a second wireless communication device, a first scheduling grant. The first wireless communication device communicates, with the second wireless communication device, a second scheduling grant including at least one of a start slot index (SSI) or a slot format indicator (SFI). The first wireless communication device communicates, with the second wireless communication device, an uplink communication signal based on the first scheduling grant and the second scheduling grant.

公开(公告)号：US11895699B2

公开(公告)日：2024-02-06

申请号：US16783964

申请日：2020-02-06

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil Bhattad ,  Jing Sun ,  Ananta Narayanan Thyagarajan ,  Xiaoxia Zhang ,  Tanumay Datta ,  Pravjyot Singh Deogun

IPC: H04W74/08 ,  H04W72/0446 ,  H04W48/16 ,  H04L5/00 ,  H04W76/27 ,  H04W72/23

CPC classification number: H04W74/0808 ,  H04L5/0051 ,  H04L5/0082 ,  H04W48/16 ,  H04W72/0446 ,  H04W72/23 ,  H04W76/27

Abstract: Wireless communications systems, apparatuses, and methods are provided. A method of wireless communication may include communicating, by a first wireless communication device with a second wireless communication device, a first scheduling grant indicating a gap period within a first scheduled period and communicating, by the first wireless communication device with the second wireless communication device during the first scheduled period, a first communication signal including a first silence period corresponding to the gap period.

公开(公告)号：US11743911B2

公开(公告)日：2023-08-29

申请号：US17302916

申请日：2021-05-14

Applicant: QUALCOMM INCORPORATED

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Kapil Bhattad ,  Ananta Narayanan Thyagarajan

IPC: H04W72/23 ,  H04L27/26 ,  H04W56/00 ,  H04W74/08 ,  H04L27/00

CPC classification number: H04W72/23 ,  H04L27/0006 ,  H04L27/2607 ,  H04L27/2646 ,  H04W56/0045 ,  H04W74/0808

Abstract: Wireless communications systems and methods related to signaling transmission starting offsets for uplink transmissions in a frequency spectrum shared by multiple network operating entities are provided. A first wireless communication device communicates, with a second wireless communication device, a cyclic prefix (CP) extension length configuration for providing a gap duration for a listen-before-talk (LBT) associated with a first communication signal. The first wireless communication device communicates, with the second wireless communication device, the first communication signal including a CP extension having a length based on the CP extension length configuration.

公开(公告)号：US20230032957A1

公开(公告)日：2023-02-02

申请号：US17965600

申请日：2022-10-13

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Jing SUN ,  Xiaoxia Zhang ,  Ananta Narayanan Thyagarajan

IPC: H04W52/02 ,  H04W72/14 ,  H04W16/14 ,  H04W74/00

Abstract: Wireless communications systems and methods related monitoring the start of a transmission opportunity (TXOP) in unlicensed or shared frequency bands are provided. In one embodiment, a first wireless communication device communicates, with a second wireless communication device, a first configuration including a set of first control channel monitoring periods outside of a TXOP. The first wireless communication device communicates, with the second wireless communication device, a communication signal during the TXOP based on a second control channel monitoring period longer than each of the first control channel monitoring periods. In one embodiment, a first wireless communication device communicates, with a second wireless communication device, a configuration including a first search space for a control channel monitoring outside of a TXOP and a second search space for a control channel monitoring within the TXOP, the second search space being partially-overlapped with the first search space.

公开(公告)号：US11570815B2

公开(公告)日：2023-01-31

申请号：US17474750

申请日：2021-09-14

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Jing Sun ,  Xiaoxia Zhang ,  Ananta Narayanan Thyagarajan ,  Tamer Kadous

IPC: H04W74/08 ,  H04W74/00 ,  H04L1/00 ,  H04W72/14 ,  H04W72/12 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may rate match an uplink transmission around a set of resources reserved by a base station. The base station may indicate a set of reserved resources which overlaps an uplink resource allocation to the UE. The base station may transmit an indicator of the reserved resources, and the UE may identify a location of a clear channel assessment (CCA) gap in a symbol period relative to the reserved resources. By rate matching around the reserved resources and one or more CCA gaps, the UE may transmit uplink information despite the allocated uplink resources colliding with the reserved resources.