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Techniques in configured grant uplink transmission in new radio (NR) systems operating in unlicensed spectrum

專利號(hào)
US11071139B2
公開日期
2021-07-20
申請(qǐng)人
Apple Inc.（US CA Cupertino）
發(fā)明人
Salvatore Talarico; Gang Xiong; Jeongho Jeon; Lopamudra Kundu; Hwan-Joon Kwon
IPC分類
H04W72/14; H04W72/04; H04W72/12; H04L5/00; H04L1/18; H04W80/02; H04W76/27; H04L1/00
技術(shù)領(lǐng)域
uci,dci,cg,pusch,ue,ul,may,or,ntcrm,circuitry
地域： CA CA Cupertino

摘要

Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for configuring, transmitting, and receiving configured grant uplink transmissions. Other embodiments may be described and claimed.

說明書

  • Redundancy version (RV) (e.g., 2 or 3 bits can be used).
  • New data indicator (NDI) (e.g., 1 bit).
  • PUSCH starting symbol (e.g., 1, 2, 3 or 4 bits can be used)—indicates the starting position of PUSCH, or whether the first symbol of the current slot is punctured.
  • PUSCH ending symbol (e.g., 1, 2, 3 or 4 bits)—indicates the ending position of PUSCH, or whether the last symbol of the current slot is punctured.
  • Channel occupancy time (COT) sharing indication.
  • Number of slots from the remaining Maximum COT (MCOT) that can be used by the gNB.
  • Priority class if UL to DL MCOT sharing is allowed.
  • Aperiodic CSI (A-CSI) indication for current PUSCH.

    • It is noted that the number of bits for each field may not be limited to the listed example numbers as above, other numbers of bits for each field may be extended.

    In some embodiments, CG-UCI may be transmitted in all the slots within the MCOT acquired by the grant-free UE. Or, the CG-UCI may be carried in all grant-free PUSCH transmissions.

    In some embodiments, the content of the CG-UCI may be the same for all the slots within the MCOT acquired by the grant-free UE. In some embodiments, in order to allow grant-free transmission to be more agile, of reduced complexity, and/or of reduced latencies due to LBT failures, the CG-UCI may be piggybacked on uplink data within each PUSCH transmission.

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