公开(公告)号：WO2022010671A1

公开(公告)日：2022-01-13

申请号：PCT/US2021/039149

申请日：2021-06-25

Applicant: QUALCOMM INCORPORATED

Inventor： YERRAMALLI, Srinivas ,  RAGHAVAN, Vasanthan ,  CHENDAMARAI KANNAN, Arumugam ,  CHANDE, Vinay ,  LI, Junyi ,  CHISCI, Giovanni ,  ZHANG, Xiaoxia ,  LUO, Tao ,  SUN, Jing ,  PARK, Sungwoo

IPC: H04L5/00 ,  H04B7/04 ,  H04W72/00 ,  H04B7/0695 ,  H04B7/0888 ,  H04L27/26025 ,  H04L27/2613 ,  H04L27/2657 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0058 ,  H04L5/0094 ,  H04W56/001 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/046

Abstract: Methods, systems, and devices for wireless communications are described. To support a reliable array response for wideband communications, a base station may configure a set of transmission instances for a set of signals distributed across a wideband carrier bandwidth. At least one transmission instance of the set of transmission instances may be configured in each sub-band of the carrier bandwidth. The base station may transmit the set of signals in the configured transmission instances to a user equipment (UE). The UE may receive the set of signals distributed across the carrier bandwidth and may measure, for the signals, a set of signal measurements corresponding to the set of sub-bands. Based on the signal measurements, the UE may determine a set of communication beams for the set of sub-bands. Using one or more of the determined communication beams, the UE may communicate with the base station in the carrier bandwidth.

公开(公告)号：WO2021262661A1

公开(公告)日：2021-12-30

申请号：PCT/US2021/038391

申请日：2021-06-22

Applicant: QUALCOMM INCORPORATED

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

IPC: H04L1/18 ,  H04L1/16 ,  H04L1/1671 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1835 ,  H04L1/1864 ,  H04L1/1896 ,  H04W72/1263

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving first downlink information, failing to decode a first portion of the first downlink information, transmitting, to a base station (BS), a first response including a negative acknowledgement (NACK) indicating a first decoding failure associated with the first portion of the first downlink information, receiving second downlink information, failing to decode a first portion of the second downlink information, detecting a hybrid automatic repeat request (HARQ) buffer unavailability, determining to discard NACK information associated with the NACK, resetting at least a portion of a HARQ buffer, in response to detecting the HARQ buffer unavailability, by discarding NACK information associated with the NACK, generating a reset NACK indicating the HARQ buffer reset and indicating the NACK information being discarded, and transmitting a second response including the reset NACK to the BS.

公开(公告)号：WO2021163150A1

公开(公告)日：2021-08-19

申请号：PCT/US2021/017402

申请日：2021-02-10

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W74/08 ,  H04B7/06 ,  H04W16/14 ,  H04L5/00 ,  H04W72/02 ,  H04W16/28

Abstract: A wireless device uses a frame-based channel access mode to access a wireless spectrum for wireless communication. The wireless device may use transmitter-side only channel sensing to determine whether or not the spectrum is idle. The frame-based channel access mode may use a fixed frame period that includes an initial sensing period for beam-based sensing and an idle period at the end of the frame to facilitate spectrum sharing.

公开(公告)号：WO2021162797A1

公开(公告)日：2021-08-19

申请号：PCT/US2020/067565

申请日：2020-12-30

Applicant: QUALCOMM INCORPORATED

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

IPC: H04B7/06 ,  H04W74/08

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for managing beam selection. In one aspect, an initiating wireless device may determine whether a pre-grant acknowledgement associated with a first beam has been received from a responding wireless device within an expected receive time. The initiating wireless device may generate an indication to prevent the initiating wireless device from using the first beam for a blocking duration in response to determining that the pre-grant acknowledgement associated with the first beam has not been received within the expected receive time.

公开(公告)号：WO2021067364A1

公开(公告)日：2021-04-08

申请号：PCT/US2020/053415

申请日：2020-09-30

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W72/08 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04W92/20

Abstract: In a particular implementation, a method of wireless communication includes detecting, at a user equipment (UE) associated with a first base station, one or more interfering beams generated by a second base station. The second base station is a neighboring base station of the first base station. The method also includes transmitting, from the UE to the first base station, an interference identification message indicating the one or more interfering beams. The method further includes receiving, from the first base station, a scheduling message indicating a set of beams of the second base station that are scheduled for use in upcoming transmissions.

公开(公告)号：WO2021067253A1

公开(公告)日：2021-04-08

申请号：PCT/US2020/053245

申请日：2020-09-29

Applicant: QUALCOMM INCORPORATED

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

IPC: H04B7/024 ,  H04W72/04

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：WO2021025813A1

公开(公告)日：2021-02-11

申请号：PCT/US2020/040504

申请日：2020-07-01

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W72/04

Abstract: This disclosure provides systems, methods, and apparatuses for beam-based channel access procedures. A base station (BS) or a user equipment (UE) may be scheduled to perform a transmission on a plurality of beams, and may perform a channel access procedure for the plurality of beams to determine an availability of the plurality of beams. In some implementations, the BS or the UE may determine that a channel access procedure is successful for a subset of the plurality of beams. In such implementations, the BS or the UE may perform the transmission on a subset of the plurality of beams for which the channel access procedure is determined to be successful or may perform the transmission after determining that the channel access procedure is successful for the plurality of beams. In either case, the approaches may decrease the likelihood that the transmission will be dropped or undecodable at a receiver.

公开(公告)号：WO2020236732A1

公开(公告)日：2020-11-26

申请号：PCT/US2020/033433

申请日：2020-05-18

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Xiaoxia ,  LUO, Tao ,  MONTOJO, Juan ,  SUN, Jing ,  YERRAMALLI, Srinivas ,  CHANDE, Vinay ,  FAN, Zhifei ,  AWONIYI-OTERI, Olufunmilola Omolade ,  PARK, Sungwoo ,  CHENDAMARAI KANNAN, Arumugam

IPC: H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment, UE, (120) may receive a control channel that uses an orthogonal frequency division multiplexing, OFDM, waveform (310). The UE may transmit or receive a data channel, associated with the control channel, that uses a single-carrier, SC, waveform (320). Numerous other aspects are provided concerning the configuration of the used channels.

公开(公告)号：WO2020146141A1

公开(公告)日：2020-07-16

申请号：PCT/US2019/068326

申请日：2019-12-23

Applicant: QUALCOMM INCORPORATED

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

IPC: H04L5/00 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a first transmit receive point in a multi-TRP configuration, a downlink control information (DCI) communication. The UE may identify one or more quasi-co-location (QCL) relationships associated with a control resource set (CORESET) or a search space set in which the DCI communication is received. A QCL relationship, of the one or more QCL relationships, is associated with one or more physical downlink shared channel (PDSCH) layers that are transmitted from a second TRP in the multi-TRP configuration. Numerous other aspects are provided.

公开(公告)号：WO2020132050A1

公开(公告)日：2020-06-25

申请号：PCT/US2019/067143

申请日：2019-12-18

Applicant: QUALCOMM INCORPORATED

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

IPC: H04L5/00 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first downlink control information (DCI) communication for scheduling a first physical downlink shared channel (PDSCH). The first PDSCH may be associated with at least a first transmit receive point (TRP). The UE may receive a second DCI communication for scheduling a second PDSCH. The second PDSCH may be associated with a second TRP and at least one of the first TRP or a third TRP. The UE may receive downlink communications based at least in part on the first DCI communication and the second DCI communication. Numerous other aspects are provided.