Title:
TRANSMISSION ADAPTATION AND GRANT-FREE ACCESS
Document Type and Number:
Japanese Patent JP2022169609
Kind Code:
A
Abstract:
To provide systems disclosed for transmission adaptation and grant-free access in an unlicensed band.SOLUTION: A wireless transmit/receive unit (WTRU) may receive a set of candidate resources that may be used for transmission. The WTRU may periodically perform CCA on a channel (e.g., before transmitting on the channel). When the channel is determined to be free, the WTRU may determine a resource for transmission from the candidate resources. The resource may be determined on the basis of a time remaining in a time period. For example, when the time remaining in the time period is shorter, the WTRU may determine to transmit on a resource that comprises more frequency resources. The WTRU may determine a Multiple Input Multiple Output (MIMO) scheme on the basis of the number of frequency resources. The WTRU may send a transmission on the determined resource, which may include a demodulation reference signal (DM-RS). The DM-RS may indicate the resource used for transmission to a receiver of the transmission.SELECTED DRAWING: Figure 3
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Inventors:
Janet A Stern-Birkowitz
Moon-Il Lee
Jay Patrick Tooher
Alpaslan Demil
Sanjay Goyal
Mihaela Sea Berli
Moon-Il Lee
Jay Patrick Tooher
Alpaslan Demil
Sanjay Goyal
Mihaela Sea Berli
Application Number:
JP2022126294A
Publication Date:
November 09, 2022
Filing Date:
August 08, 2022
Export Citation:
Assignee:
IDAC Holdings Incorporated
International Classes:
H04W74/08; H04L1/06; H04L27/26; H04W16/28; H04W72/04
Attorney, Agent or Firm:
Patent Attorney Tani / Abe Patent Office