The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 19, 2022

Filed:

Feb. 28, 2018
Applicant:

Ntt Docomo, Inc., Tokyo, JP;

Inventors:

Neng Ye, Beijing, CN;

Xiangming Li, Beijing, CN;

Xiaohang Chen, Beijing, CN;

Xiaolin Hou, Beijing, CN;

Qun Zhao, Beijing, CN;

Huiling Jiang, Beijing, CN;

Assignee:

NTT DoCoMo, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 74/08 (2009.01); H04W 72/04 (2009.01); H04W 72/08 (2009.01); H04W 74/00 (2009.01);
U.S. Cl.
CPC ...
H04W 74/085 (2013.01); H04W 72/0446 (2013.01); H04W 72/082 (2013.01); H04W 74/004 (2013.01);
Abstract

The present disclosure provides a grant-free transmission method, a user equipment, and a base station. The grant-free transmission method at a user equipment side includes: step a, sending a first multiple access signature selected by a user equipment to a base station; step b, receiving an intervention result of the base station for the user equipment; step c, determining, when the intervention result is to adopt the first multiple access signature, to adopt the first multiple access signature for data transmission; and step d, determining, when the intervention result is to adopt a second multiple access signature, to adopt the second multiple access signature for the data transmission. According to the grant-free transmission method, the user equipment, and the base station provided by the present disclosure, the collision during the grant-free transmission is avoided or reduced with less signaling overhead.


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