公开(公告)号：US20200052743A1

公开(公告)日：2020-02-13

申请号：US16536130

申请日：2019-08-08

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho RYU ,  Arumugam CHENDAMARAI KANNAN ,  Tao LUO

IPC: H04B7/0452 ,  H04L5/00 ,  H04W16/28

Abstract: Certain aspects of the present disclosure provide techniques for reducing inter-sector interference. A method generally includes transmitting, in a multi-user multiple-input and multiple-output (MU-MIMO) mode, first beamformed transmissions using a first beam to a first user equipment (UE) in a first sector and second beamformed transmissions using a second beam to a second UE in a second sector, wherein the BS is configured to control a plurality of sectors comprising the first sector and the second sector, receiving, from the first UE, a feedback report indicating inter-sector interference encountered by the first UE in the first sector due to the second beamformed transmissions, and taking one or more actions based on the feedback report to reduce the inter-sector interference encountered by the first UE in the first sector.

公开(公告)号：US20170126346A1

公开(公告)日：2017-05-04

申请号：US15264850

申请日：2016-09-14

Applicant: QUALCOMM Incorporated

Inventor： Arumugam CHENDAMARAI KANNAN ,  Tao LUO ,  Chirag Sureshbhai PATEL ,  Tamer Adel KADOUS

IPC: H04J3/16 ,  H04L5/14 ,  H04W72/04

CPC classification number: H04J3/1694 ,  H04L5/0053 ,  H04L5/1469 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/0446 ,  H04W74/02 ,  H04W74/08

Abstract: Disclosed are techniques for accessing a shared communication medium. An aspect includes communicating over the shared communication medium in accordance with a Time Division Duplexing (TDD) frame structure defining a set of downlink subframes and a set of uplink subframes, each uplink subframe being divided into a transmission gap period, a contention-exempt period, and a contention-compliant period, performing a contention procedure for contending for access to the shared communication medium during the transmission gap period, selectively transmitting contention-compliant uplink control signals during the contention-compliant period, and transmitting one or more contention-exempt uplink control signals during the contention-exempt period. An aspect includes receiving a downlink subframe of the shared communication medium and transmitting an acknowledgment of the downlink subframe during an uplink subframe of the shared communication medium, the uplink subframe occurring at least a predetermined number of subframes and/or at least a predetermined amount of time after the downlink subframe.

公开(公告)号：US20250030473A1

公开(公告)日：2025-01-23

申请号：US18707090

申请日：2022-01-19

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Arumugam CHENDAMARAI KANNAN ,  Taesang YOO ,  Philip Aaron SISK ,  Himanshu JOSHI ,  Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO

IPC: H04B17/318 ,  H04B7/06 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that includes one or more mapping rules, each of the one or more mapping rules indicating a mapping between one or more reference signal received power (RSRP) measurements, associated with one or more reference signal resources, and one or more indices, associated with one or more feature input vectors for a machine learning model. The UE may initiate a beam prediction based at least in part on the one or more mapping rules. Numerous other aspects are described.

公开(公告)号：US20250024452A1

公开(公告)日：2025-01-16

申请号：US18350682

申请日：2023-07-11

Applicant: QUALCOMM Incorporated

Inventor： Mohamed Fouad Ahmed MARZBAN ,  Wooseok NAM ,  Arumugam CHENDAMARAI KANNAN

IPC: H04W72/1268

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of an interference prediction configuration. The UE may transmit an interference prediction report based at least in part on the interference prediction configuration. Numerous other aspects are described.

公开(公告)号：US20250015858A1

公开(公告)日：2025-01-09

申请号：US18707805

申请日：2022-01-21

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Arumugam CHENDAMARAI KANNAN ,  Yan ZHOU ,  Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Tianyang BAI ,  Yu ZHANG

IPC: H04B7/06 ,  H04W72/21

Abstract: Certain aspects of the present disclosure provide a method for wireless communications at a user equipment (UE). The UE determines whether to deactivate a semi-persistent (SP) channel state information (CSI) report associated with a first CSI report setting that is linked with a CSI report associated with a second CSI report setting. The second CSI report setting has a longer reporting periodicity than the first CSI report setting. The UE deactivates the SP CSI report, when at least the CSI report associated with the second CSI report setting is active.

公开(公告)号：US20240340064A1

公开(公告)日：2024-10-10

申请号：US18576340

申请日：2021-08-06

Applicant: QUALCOMM Incorporated

Inventor： Vinay CHANDE ,  Jing SUN ,  Arumugam CHENDAMARAI KANNAN ,  Giovanni CHISCI ,  Siyi CHEN ,  Mohammed Ali Mohammed HIRZALLAH ,  Aleksandar DAMNJANOVIC ,  Xiaoxia ZHANG ,  Tao LUO

IPC: H04B7/06 ,  H04W48/16 ,  H04W74/0808

CPC classification number: H04B7/0695 ,  H04W48/16 ,  H04W74/0808

Abstract: Certain aspects of the present disclosure provide techniques for determining if a first sensing beam is eligible for use in channel sensing by a device under test (DUT) for at least a first transmission beam, generally including evaluating the first sensing beam against eligibility criterion based on measurement of sensing gain for the first sensing beam in multiple directions and declaring the first sensing beam eligible for channel sensing for the first transmission beam when the first sensing beam satisfies the eligibility criterion.

公开(公告)号：US20240236704A1

公开(公告)日：2024-07-11

申请号：US18150338

申请日：2023-01-05

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan RAGHAVAN ,  Arumugam CHENDAMARAI KANNAN ,  Tao LUO

IPC: H04W16/28 ,  H04W24/10

CPC classification number: H04W16/28 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a measurement report indicating a plurality of candidate beam pairs for multiple-input multiple-output (MIMO) communication with a network node, wherein the plurality of candidate beam pairs includes a first beam pair and a second beam pair, wherein each beam of the plurality of candidate beam pairs has a spatial characteristic and a polarization characteristic. The UE may receive a MIMO configuration for the first beam pair and the second beam pair, wherein a beam of the second beam pair is outside a beam avoidance region, wherein the beam avoidance region is defined based at least in part on the spatial characteristic of a beam of the first beam pair. Numerous other aspects are described.

公开(公告)号：US20240171240A1

公开(公告)日：2024-05-23

申请号：US18550423

申请日：2021-09-21

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed HIRZALLAH ,  Arumugam CHENDAMARAI KANNAN ,  Srinivas YERRAMALLI ,  Giovanni CHISCI ,  Vinay CHANDE ,  Jing SUN ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Marco PAPALEO ,  Tao LUO

IPC: H04B7/06 ,  H04W74/0808

CPC classification number: H04B7/0617 ,  H04B7/0695 ,  H04W74/0808

Abstract: Wireless communications systems and methods related to accessing a channel based on an interference condition in a wireless communication network are provided. For example, a method of wireless communication performed by a wireless communications device may include receiving, from a second wireless communication device, one or more signals associated with a beam parameter, determining, at each of a plurality of locations, a signal measurement for at least one received signal of the one or more received signals, and determining, based at least in part on a cumulative distribution of the signal measurements at the plurality of locations and a reference probability distribution, whether the second wireless communication device satisfies an interference condition. Other features are also claimed and described.

公开(公告)号：US20240155680A1

公开(公告)日：2024-05-09

申请号：US18279897

申请日：2021-04-12

Applicant: QUALCOMM Incorporated

Inventor： Giovanni CHISCI ,  Arumugam CHENDAMARAI KANNAN ,  Siyi CHEN ,  Vinay CHANDE ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04W74/0816 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04W74/0816 ,  H04B7/0626 ,  H04L1/0003 ,  H04L5/0051 ,  H04W74/006

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for a user equipment (UE) to provide listen before talk (LBT) assistance to a transmitting device. The UE may receive a pre-grant (PG) indicating a plurality of beams. The UE may performing a LBT procedure on each beam of the indicated plurality of beams. The UE may transmit an acknowledgment to the pre-grant (APG) as a waveform that indicates that the LBT procedure for one or more of the indicated plurality of beams was successful. The waveform may be a sounding reference signal (SRS) with a sequence that indicates that the LBT procedure was successful.

公开(公告)号：US20240089769A1

公开(公告)日：2024-03-14

申请号：US17932191

申请日：2022-09-14

Applicant: QUALCOMM Incorporated

Inventor： Mohamed Fouad Ahmed MARZBAN ,  Wooseok NAM ,  Tao LUO ,  Taesang YOO ,  Arumugam CHENDAMARAI KANNAN

IPC: H04W24/10 ,  H04B17/336 ,  H04W16/28 ,  H04W56/00

CPC classification number: H04W24/10 ,  H04B17/336 ,  H04W16/28 ,  H04W56/001

Abstract: An apparatus for wireless communication at a UE is provided. The apparatus is configured to receive a configuration to report interference measurement information indicating interference measurements for each interference measurement resource of a set of interference measurement resources and Rx beam information used by the UE for performing interference measurements on each interference measurement resource of the set of interference measurement resources. The apparatus is configured to receive a set of interference measurement reference signals on the set of interference measurement resources, and to measure interference on each interference measurement resource of the set of interference measurement resources to obtain the interference measurement information. Each interference measurement is through one Rx beam of a set of Rx beams. The apparatus is configured to transmit, in response to the received set of interference reference signals on the set of interference measurement resources, the interference measurement information, and corresponding Rx beam information.