公开(公告)号：US11737140B2

公开(公告)日：2023-08-22

申请号：US17248179

申请日：2021-01-12

Applicant: QUALCOMM INCORPORATED

Inventor： Aleksandar Damnjanovic ,  Tao Luo ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/12 ,  H04W24/10 ,  H04W16/14

CPC classification number: H04W74/0816 ,  H04L5/0048 ,  H04W16/14 ,  H04W24/10 ,  H04W72/1215

Abstract: Wireless communications systems and methods related to medium access in a shared radio frequency band with long-term sensing for exception to medium access restriction are provided. A wireless communication device performs channel measurements in a shared radio frequency band during a plurality of measurement occasions spaced apart in time, the performing the channel measurements being based on a plurality of spatial directions. The wireless communication device determines whether the channel measurements satisfy a criterion for accessing the shared radio frequency band without a medium access restriction. The wireless communication device transmits, in a first spatial direction, a first communication signal in the shared radio frequency band without the medium access restriction in response to determining that the channel measurements satisfy the criterion, the plurality of spatial directions including the first spatial direction.

公开(公告)号：US11622380B2

公开(公告)日：2023-04-04

申请号：US17248451

申请日：2021-01-25

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W74/04 ,  H04W72/04

Abstract: Methods related to wireless communications systems and medium access in a radio frequency band of a shared spectrum are provided. A device contends for a first reserved time interlace including a plurality of channel occupancy times (COTs). The device transmits a first communication signal in a first COT of the plurality of COTs in response to winning the first reserved time interlace. The device transmits a second communication signal in a second COT of the plurality of COTs, the second COT spaced in time from the first COT, in response to winning the first reserved time interlace.

公开(公告)号：US11617192B2

公开(公告)日：2023-03-28

申请号：US17035355

申请日：2020-09-28

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Vinay Chande ,  Tao Luo ,  Xiaoxia Zhang ,  Srinivas Yerramalli

IPC: H04W56/00 ,  H04W72/1273 ,  H04W72/044 ,  H04W88/14 ,  H04W76/27 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/08 ,  H04L1/00 ,  H04B7/0456 ,  H04L5/00 ,  H04W76/11

Abstract: In a particular implementation, a method includes receiving, at a first base station from a second base station via a backhaul communication, a scheduling message indicating one or more beams of the second base station that are scheduled for use in upcoming transmissions. The second base station is a neighboring base station of the first base station. The method further includes transmitting, from the first base station to a user equipment (UE), the scheduling message.

公开(公告)号：US11595993B2

公开(公告)日：2023-02-28

申请号：US17178549

申请日：2021-02-18

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: A method of wireless communication includes performing, by a user equipment (UE) device, a channel sensing operation during a first window of a frame period associated with a wireless communication network. Performing the channel sensing operation includes performing a direction-based scan of one or more beams associated with the wireless communication network, and the channel sensing operation is included in a joint sensing operation performed with a base station. The method further includes, based at least in part on a result of the channel sensing operation, determining whether to perform, during a second window of the frame period, one or more communication operations with the base station.

公开(公告)号：US11570728B2

公开(公告)日：2023-01-31

申请号：US17248231

申请日：2021-01-14

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W52/38 ,  H04W52/24

Abstract: Wireless communications systems and methods related to listen-before-talk (LBT) are provided. A first wireless communication device performs an LBT in a channel to contend for a first transmission opportunity (TXOP). The first wireless communication device receives, from a second wireless communication device, a first reservation signal reserving a second TXOP in the channel in response to the LBT, the second TXOP being different from the first TXOP. The first wireless communication device adjusts a signal detection threshold based on transmit power information associated with at least one of the first wireless communication device, the second wireless communication device, first data traffic to be communicated in the first TXOP, or second data traffic to be communicated in the second TXOP. The first wireless communication device determines whether to yield channel access during the second TXOP based on a signal measurement of the first reservation signal and the adjusted signal detection threshold.

公开(公告)号：US11503587B2

公开(公告)日：2022-11-15

申请号：US16686680

申请日：2019-11-18

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Makesh Pravin John Wilson ,  Arumugam Chendamarai Kannan ,  Vinay Chande

IPC: H04W72/04

Abstract: A user equipment (UE) may be provisioned with multiple semi-persistent scheduling (SPS) configurations. The UE may determine a differentiation characteristic for determining which SPS configuration is indicated by a downlink control information or associated with a physical downlink shared channel (PDSCH). For example, the UE may receive a first activation of a first SPS configuration and a second activation of a second SPS configuration. The UE may determine the differentiation characteristic between the first SPS configuration and the second SPS configuration. The UE may determine that one of the first SPS configuration or the second SPS configuration is the SPS configuration for a received PDSCH based on the differentiation characteristic. The UE may transmit an acknowledgment of the PDSCH based on the determined SPS configuration.

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：US11432333B2

公开(公告)日：2022-08-30

申请号：US16773825

申请日：2020-01-27

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Xiaoxia Zhang ,  Tao Luo ,  Arumugam Chendamarai Kannan ,  Jing Sun ,  Makesh Pravin John Wilson ,  Ozcan Ozturk

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/04 ,  H04W76/10 ,  H04W72/12

Abstract: A user equipment (UE) may transmit a random access request message to a base station in a random access procedure to access a wireless network. In response, the base station may transmit a random access response message to the UE including an uplink grant for a first set of uplink resources for the UE to transmit a radio resource control (RRC) message. The UE may determine a second set of uplink resources for transmitting the RRC message, for example, based on additional uplink grants received in the random access response message. Additionally or alternatively, the UE may derive additional grants implicitly from the first uplink grant received from the base station. The UE may transmit the RRC message to the base station using the first and/or second sets of uplink resources and establish a connection based on the RRC message for subsequent uplink and downlink communications.

公开(公告)号：US11405926B2

公开(公告)日：2022-08-02

申请号：US16802292

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Xiaoxia Zhang ,  Vinay Chande ,  Srinivas Yerramalli ,  Arumugam Chendamarai Kannan

IPC: H04W72/08 ,  H04W74/08 ,  H04W16/14 ,  H04L5/14 ,  H04L5/00

Abstract: Aspects are provided that allow a base station to use visual information of interfering UEs for optimizing shared channel access and beam and interference management and tracking. The base station may obtain visual information of a UE. The base station may then access a shared channel to communicate with the UE based on the visual information. After accessing the shared channel, the base station may communicate with the UE over the shared channel using one or more beams based on the visual information. Efficient channel access and communication in mmW environments may thereby be achieved.

公开(公告)号：US11310005B2

公开(公告)日：2022-04-19

申请号：US16712915

申请日：2019-12-12

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun ,  Vinay Chande ,  Arumugam Chendamarai Kannan

IPC: H04L5/00 ,  H04W28/02 ,  H04W36/00 ,  H04B7/024

Abstract: Aspects described herein relate to communicating in a wireless network based on a configured set of one or more transmission points (TRPs), receiving an instruction to modify the set of one or more TRPs, modifying, based on the instruction, the set of one or more TRPs to generate a modified set of one or more TRPs, and communicating in the wireless network based on the modified set of one or more TRPs.