公开(公告)号：US12262360B2

公开(公告)日：2025-03-25

申请号：US17375905

申请日：2021-07-14

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Vasanthan Raghavan ,  Jing Sun ,  Vinay Chande ,  Giovanni Chisci ,  Tao Luo ,  Wooseok Nam ,  Xiaoxia Zhang

IPC: H04W72/0453 ,  H04L5/00 ,  H04L25/02 ,  H04W72/23 ,  H04W72/51

Abstract: Methods, systems, and devices for wireless communications are described. To support communications across a wideband, a base station and user equipment (UE) may communicate across the wideband using a set of sub-bands that span the carrier bandwidth (e.g., the wideband). In some cases, the UE may transmit, to the base station, an indication of a capability of the UE to communicate a wideband communication with the base station via the set of sub-band based communications with the base station. The UE may receive, from the base station (and, in some cases based on the capability of the UE), a configuration for communicating with the base station in the carrier bandwidth using the set of sub-bands. Then, the UE may communicate with the base station in the carrier bandwidth using one or more of the set of sub-bands in accordance with the configuration.

公开(公告)号：US12250721B2

公开(公告)日：2025-03-11

申请号：US17221500

申请日：2021-04-02

Applicant: QUALCOMM Incorporated

Inventor： Giovanni Chisci ,  Arumugam Chendamarai Kannan ,  Jing Sun ,  Vinay Chande ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic

IPC: H04W74/08 ,  H04W16/28 ,  H04W72/044 ,  H04W74/0816

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting node may perform a directional listen-before-talk (LBT) using a sensing beam. The transmitting node may start a channel occupancy time (COT) after the directional LBT based at least in part on one of a COT claiming signal or a time stamp. The transmitting node may perform, to a receiving node, one or more transmissions during the COT using one or more transmit beams that are included in the sensing beam. Numerous other aspects are described.

公开(公告)号：US12058736B2

公开(公告)日：2024-08-06

申请号：US17395415

申请日：2021-08-05

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Giovanni Chisci ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo

IPC: H04W74/08 ,  H04B17/336 ,  H04W24/10 ,  H04W74/0816

CPC classification number: H04W74/0816 ,  H04B17/336 ,  H04W24/10

Abstract: The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. In one aspect, the apparatus may determine an energy detection threshold of a reference bandwidth, the energy detection threshold being based on at least one of a transmit power or a power class. The apparatus may also measure an interference level of at least one signal. Additionally, the apparatus may adjust the energy detection threshold of the reference bandwidth based on a sensing bandwidth. The apparatus may also determine whether a transmission medium is available based on at least one of the adjusted energy detection threshold or the measured interference level of the at least one signal.

公开(公告)号：US11968546B2

公开(公告)日：2024-04-23

申请号：US17691536

申请日：2022-03-10

Applicant: QUALCOMM INCORPORATED

Inventor： Giovanni Chisci ,  Jing Sun ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Sumant Jayaraman Iyer ,  Marco Papaleo ,  Tao Luo ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang

IPC: H04W16/28

CPC classification number: H04W16/28

Abstract: A method for wireless communication includes a first wireless communication device receiving, from a second wireless communication device, one or more signals for each of a plurality of candidate sensing beams and a transmission beam. The method also includes determining, for each of the plurality of candidate sensing beams based on at least one of the one or more signals for the respective candidate sensing beam, a first signal measurement. The method also includes determining, based on at least one of the one or more signals for the transmission beam, a second signal measurement with respect to a direction of the transmission beam, and determining, for each of the plurality of candidate sensing beams based on the respective first signal measurement and the second signal measurement, beam coverage information with respect to the transmission beam direction.

公开(公告)号：US20240114495A1

公开(公告)日：2024-04-04

申请号：US17958042

申请日：2022-09-30

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Xiaoxia Zhang ,  Jing Sun ,  Giovanni Chisci ,  Stelios Stefanatos

IPC: H04W72/04 ,  H04L27/26 ,  H04W52/16 ,  H04W52/36

CPC classification number: H04W72/0453 ,  H04L27/2607 ,  H04W52/16 ,  H04W52/367

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for a user equipment (UE) to transmit feedback information via a configurable quantity of interlaced resource blocks (IRBs) in one or more interlaces of a sidelink feedback channel. For example, the UE may transmit feedback via multiple IRBs of an interlace. The UE may determine which IRBs to use in accordance with a configuration, which may indicate a quantity of IRBs, a distribution of the IRBs, a pattern of the IRBs, or any combination thereof. Additionally, or alternatively, the UE may determine to transmit feedback via multiple IRBs of an interlace that is different from a common interlace.

公开(公告)号：US20220322430A1

公开(公告)日：2022-10-06

申请号：US17657328

申请日：2022-03-30

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Jing Sun ,  Arumugam Chendamarai Kannan ,  Giovanni Chisci ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W74/08 ,  H04W24/10 ,  H04W72/04

Abstract: A method of wireless communication includes performing, by a user equipment (UE), a scan in connection with a listen-before-transmit (LBT) operation. A sensing bandwidth associated with the scan is selected by the UE based at least in part on a transmission bandwidth of an uplink transmission, and at least a portion of the sensing bandwidth is included an unlicensed frequency spectrum. The method further includes transmitting, by the UE, the uplink transmission based on a result of the scan.

公开(公告)号：US20210307063A1

公开(公告)日：2021-09-30

申请号：US17249611

申请日：2021-03-05

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Sungwoo Park ,  Giovanni Chisci

IPC: H04W74/08 ,  H04W72/04

Abstract: Wireless communications systems and methods related to communications in a network are provided. A first wireless communication device may perform in a shared radio frequency band during a first portion of a frame period, a first listen-before-talk (LBT) using a first beam characteristic. Additionally, the first wireless communication device may perform in the shared radio frequency band during a second portion of the frame period, a second LBT using a second set of beam characteristics different from the first beam characteristic. The first wireless communication device may communicate with a second wireless communication device in the shared radio frequency band during the second portion of the frame period, one or more communication signals using the second set of beam characteristics. Other aspects and features are also described.

公开(公告)号：US20210176783A1

公开(公告)日：2021-06-10

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: H04W74/08 ,  H04W16/14 ,  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：US12133258B2

公开(公告)日：2024-10-29

申请号：US17395371

申请日：2021-08-05

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Giovanni Chisci ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo

IPC: H04W74/0816 ,  H04W72/0453 ,  H04W74/00

CPC classification number: H04W74/0816 ,  H04W72/0453 ,  H04W74/004 ,  H04W74/006

Abstract: The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. In one aspect, the apparatus may determine a CCA threshold corresponding to at least one bandwidth, the at least one bandwidth being associated with a COT sharing procedure. The apparatus may also adjust the CCA threshold corresponding to the at least one bandwidth based on at least one of one or more sensing bandwidths or one or more granted resources for the COT sharing procedure. Additionally, the apparatus may signal the adjusted CCA threshold corresponding to the at least one bandwidth to at least one of a node or a base station.

公开(公告)号：US12126551B2

公开(公告)日：2024-10-22

申请号：US17395339

申请日：2021-08-05

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Giovanni Chisci ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo

IPC: H04W72/0453 ,  H04L5/00 ,  H04W24/10 ,  H04W72/541

CPC classification number: H04L5/0039 ,  H04W24/10 ,  H04W72/0453 ,  H04W72/541

Abstract: The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. In one aspect, the apparatus may measure one or more candidate bandwidths, each of the one or more candidate bandwidths corresponding to a candidate channel. The apparatus may also select an operating bandwidth of the one or more candidate bandwidths based on the measured one or more candidate bandwidths, the operating bandwidth corresponding to an operating channel. Additionally, the apparatus may adjust an energy detection threshold of a reference bandwidth based on a sensing bandwidth. The apparatus may also determine whether a transmission medium is available based on at least one of the adjusted energy detection threshold or an interference level of at least one signal.