Title:
RECEIVE ASSISTED LISTEN BEFORE TALK WITH MULTIPLE CANDIDATE BEAMS AND WAVEFORM AS SINGLE ACKNOWLEDGMENT OF PRE-GRANT
Document Type and Number:
WIPO Patent Application WO/2022/217411
Kind Code:
A1
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.
Inventors:
CHISCI GIOVANNI (US)
CHENDAMARAI KANNAN ARUMUGAM (US)
CHEN SIYI (US)
CHANDE VINAY (US)
SUN JING (US)
ZHANG XIAOXIA (US)
CHENDAMARAI KANNAN ARUMUGAM (US)
CHEN SIYI (US)
CHANDE VINAY (US)
SUN JING (US)
ZHANG XIAOXIA (US)
Application Number:
PCT/CN2021/086523
Publication Date:
October 20, 2022
Filing Date:
April 12, 2021
Export Citation:
Assignee:
QUALCOMM INC (US)
CHISCI GIOVANNI (US)
CHENDAMARAI KANNAN ARUMUGAM (US)
CHEN SIYI (CN)
CHANDE VINAY (US)
SUN JING (US)
ZHANG XIAOXIA (US)
CHISCI GIOVANNI (US)
CHENDAMARAI KANNAN ARUMUGAM (US)
CHEN SIYI (CN)
CHANDE VINAY (US)
SUN JING (US)
ZHANG XIAOXIA (US)
International Classes:
H04W72/04; H04B7/0408
Domestic Patent References:
| WO2016204811A1 | 2016-12-22 |
Foreign References:
| US20190090279A1 | 2019-03-21 | |||
| CN103650364A | 2014-03-19 | |||
| CN109314552A | 2019-02-05 |
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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