公开(公告)号：WO2021163067A1

公开(公告)日：2021-08-19

申请号：PCT/US2021/017277

申请日：2021-02-09

Applicant: QUALCOMM INCORPORATED

Inventor： SUN, Jing ,  CHANDE, Vinay ,  CHENDAMARAI KANNAN, Arumugam ,  YERRAMALLI, Srinivas ,  ZHANG, Xiaoxia ,  LUO, Tao

IPC: H04W74/08 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive a clear channel assessment trigger from a second wireless device, the clear channel assessment trigger associated with a data transmission by the second wireless device. The first wireless device may transmit, based at least in part on a result of a first clear channel assessment procedure, feedback information for the clear channel assessment trigger. The first wireless device may receive the data transmission based at least in part on the feedback information for the first clear channel assessment procedure. The first wireless device may transmit, based at least in part on a result of a second clear channel assessment procedure, feedback information for the data transmission, wherein the first clear channel assessment procedure has a first duration that is longer than a second duration for the second clear channel assessment procedure.

公开(公告)号：WO2021162814A1

公开(公告)日：2021-08-19

申请号：PCT/US2021/013143

申请日：2021-01-13

Applicant: QUALCOMM INCORPORATED

Inventor： DAMNJANOVIC, Aleksandar ,  LUO, Tao ,  KANNAN, Arumugam Chendamarai ,  CHANDE, Vinay ,  ZHANG, Xiaoxia ,  SUN, Jing

IPC: H04W74/08 ,  H04B7/06

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：WO2021158836A1

公开(公告)日：2021-08-12

申请号：PCT/US2021/016691

申请日：2021-02-05

Applicant: QUALCOMM INCORPORATED

Inventor： SUN, Jing ,  CHANDE, Vinay ,  KANNAN, Arumugam Chendamarai ,  YERRAMALLI, Srinivas ,  ZHANG, Xiaoxia ,  LUO, Tao ,  DAMNJANOVIC, Aleksandar

IPC: H04W74/08

Abstract: Methods related to wireless communications systems and transmissions in an unlicensed radio frequency band of a shared spectrum are provided. A device determines whether one or more criteria are satisfied for accessing an unlicensed band of a shared spectrum without performing a listen-before-talk (LBT). The device transmits a communication signal in the unlicensed band without performing LBT in response to determining that the one or more criteria are satisfied.

公开(公告)号：WO2021145967A1

公开(公告)日：2021-07-22

申请号：PCT/US2020/062613

申请日：2020-11-30

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Xiaoxia ,  KHOSHNEVISAN, Mostafa ,  NAM, Wooseok ,  LUO, Tao ,  SUN, Jing ,  PARK, Sungwoo ,  CHENDAMARAI KANNAN, Arumugam ,  CHANDE, Vinay ,  WANG, Hua ,  WEI, Yongbin

IPC: H04W52/02 ,  H04W76/28 ,  H04W8/00 ,  H04W48/08 ,  H04W48/12 ,  H04W72/04 ,  H04W52/0229 ,  H04W52/0235 ,  H04W72/042 ,  H04W74/006 ,  H04W8/005

Abstract: Methods, systems, and devices for wireless communications are described. A base station may configure a user equipment (UE) with a multiple listen-before-talk (LBT) bandwidths, where each LBT bandwidth is associated with one or more downlink control channel candidates of a search space for a control resource set. The UE may monitor the LBT bandwidths during a wakeup signal period for a wakeup signal from the base station. The UE may be configured with a total number of blind hypotheses in the set of blind hypotheses which is equal to or greater than a total number of LBT bandwidths. The UE may determine whether to wake up and monitor an on duration of a discontinuous reception cycle based on detection of the wakeup signal.

公开(公告)号：WO2021011133A1

公开(公告)日：2021-01-21

申请号：PCT/US2020/037237

申请日：2020-06-11

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Xiaoxia ,  SUN, Jing ,  LUO, Tao ,  KHOSHNEVISAN, Mostafa ,  CHENDAMARAI KANNAN, Arumugam ,  CHANDE, Vinay ,  ZHOU, Yan ,  HE, Linhai ,  PARK, Sungwoo

IPC: H04L5/00 ,  H04B17/30 ,  H04W76/00

Abstract: Certain aspects of the present disclosure provide a method for wireless communications by a user equipment (UE). The method determines resources to monitor for beam failure detection (BFD) when the UE is in a mode of operation involving at least first and second transmitter receiver points (TRPs). The method then detects a beam failure based on monitoring of the determined resources. The method further triggers a beam failure recovery (BFR) procedure based on the detection.

公开(公告)号：WO2020263507A1

公开(公告)日：2020-12-30

申请号：PCT/US2020/035588

申请日：2020-06-01

Applicant: QUALCOMM INCORPORATED

Inventor： YERRAMALLI, Srinivas ,  CHENDAMARAI KANNAN, Arumugam ,  CHANDE, Vinay ,  AKKARAKARAN, Sony ,  ZHANG, Xiaoxia ,  LUO, Tao ,  PARK, Sungwoo ,  AWONIYI-OTERI, Olufunmilola Omolade ,  KHOSHNEVISAN, Mostafa ,  CHAKRABORTY, Kaushik

IPC: H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a base station or a user equipment, may identify an energy detection threshold for a sensing beam associated with a channel access procedure, such as a listen before talk (LBT) procedure. The wireless device may also identify a set of transmit power parameters for one or more transmit beams. The wireless device may determine a degree of overlap between a coverage area of one or more transmit beams and a coverage area of the sensing beam. The wireless device may adjust the set of transmit power parameters, the energy detection threshold, or a combination thereof based on the degree of overlap. The wireless device may perform the channel access procedure based on the determining, the adjusting, or both.

公开(公告)号：WO2020132540A2

公开(公告)日：2020-06-25

申请号：PCT/US2019/068006

申请日：2019-12-20

Applicant: QUALCOMM INCORPORATED

Inventor： JOHN WILSON, Makesh Pravin ,  LUO, Tao ,  KHOSHNEVISAN, Mostafa ,  SUN, Jing ,  CHENDAMARAI KANNAN, Arumugam ,  ZHANG, Xiaoxia ,  CHANDE, Vinay

IPC: H04L5/00 ,  H04W52/14 ,  H04W52/34

Abstract: Methods, systems, and devices for wireless communications are described for adjusting transmit powers for concurrent uplink transmissions from a user equipment (UE) to multiple transmission reception points (TRPs), or dropping one or more uplink transmissions to one or more TRPs, based on one or more parameters. A UE may identify that a combined transmission power for concurrent uplink transmissions exceeds a power threshold of the UE, and may adjust a power for one or more of the concurrent uplink transmissions, or drop one or more of the uplink transmissions based on such an identification. If a difference in transmit powers of the concurrent uplink transmissions exceeds a power difference threshold, the UE may drop one or more lower priority transmissions. The UE may multiplex at least a portion of a dropped transmission with another uplink transmission that will be transmitted, such as by rate-matching or puncturing.

公开(公告)号：WO2020132289A1

公开(公告)日：2020-06-25

申请号：PCT/US2019/067559

申请日：2019-12-19

Applicant: QUALCOMM INCORPORATED

Inventor： JOHN WILSON, Makesh Pravin ,  LUO, Tao ,  ZHANG, Xiaoxia ,  ZHOU, Yan ,  CHANDE, Vinay ,  CHENDAMARAI KANNAN, Arumugam ,  SUN, Jing

IPC: H04W72/04 ,  H04W16/14 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine a degradation of a communication beam associated with a user equipment (UE). The base station may transmit a first signal identifying a beam switch occasion for the UE. The UE may receive a second signal identifying the beam switch occasion based on an outcome of the contention-based procedure. In some cases, the UE may transmit a third signal acknowledging the beam switch occasion during an acknowledgment opportunity based on the second signal, and may perform a beam switch during the beam switch occasion based on transmitting the third signal.

公开(公告)号：WO2020131280A1

公开(公告)日：2020-06-25

申请号：PCT/US2019/062206

申请日：2019-11-19

Applicant: QUALCOMM INCORPORATED

Inventor： KHOSHNEVISAN, Mostafa ,  LUO, Tao ,  ZHANG, Xiaoxia ,  SUN, Jing ,  JOHN WILSON, Makesh Pravin ,  CHENDAMARAI KANNAN, Arumugam ,  CHANDE, Vinay

IPC: H04W72/04 ,  H04W88/08

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：WO2019067297A1

公开(公告)日：2019-04-04

申请号：PCT/US2018/051926

申请日：2018-09-20

Applicant: QUALCOMM INCORPORATED

Inventor： CHENDAMARAI KANNAN, Arumugam ,  SADEK, Ahmed Kamel ,  CHANDE, Vinay ,  BARGHI, Sanaz ,  KADOUS, Tamer

IPC: H04W74/00 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A base station may perform a channel access procedure on a shared radio frequency spectrum band using a first beam configuration. The base station may transmit, based at least in part on successful completion of the channel access procedure, a reservation request message (RRQ) to a user equipment (UE) using a second beam configuration, the second beam configuration comprising a beam width that is equal to or narrower than a beam width of the first beam configuration. The base station may receive a reservation response message (RRS) from the UE in response to the RRQ, the RRS comprising a third beam configuration that is based at least in part on the second beam configuration.