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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.

Patent No.:

US 10159080 B1

PDFFull Text
Date of Patent:
Dec. 18, 2018

Filed:

Jul. 01, 2015

Random access method and apparatus and system

Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Hongchao Li, Beijing, CN;

Hua Zhou, Beijing, CN;

Jianming Wu, Beijing, CN;

Assignee:

Fujitsu Limited, Kawasaki-shi, JP;

Attorney:

Myers Wolin, LLC

Primary Examiner:

Steven H Nguyen

Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04W 74/00 (2009.01); H04L 1/00 (2006.01); H04L 5/00 (2006.01); H04J 3/16 (2006.01); H04L 5/14 (2006.01); H04W 4/18 (2009.01); H04W 72/02 (2009.01); H04W 74/08 (2009.01); H04W 88/02 (2009.01);
U.S. Cl.
CPC ...
H04W 72/048 (2013.01); H04J 3/1694 (2013.01); H04L 1/00 (2013.01); H04L 5/008 (2013.01); H04L 5/0048 (2013.01); H04L 5/0094 (2013.01); H04L 5/14 (2013.01); H04W 4/18 (2013.01); H04W 74/002 (2013.01); H04W 72/02 (2013.01); H04W 72/044 (2013.01); H04W 74/0833 (2013.01); H04W 88/02 (2013.01);
Abstract

Embodiments of the present invention provide a random access method and apparatus and system. Where, the method includes: selecting randomly, by UE, a physical random access channel (PRACH) resource for transmitting a preamble from multiple PRACH resources pre-configured by an eNB for the UE; and transmitting the preamble by the UE on a selected PRACH resource, so that the eNB transmits a random access response to UE to which a correctly demodulated preamble corresponds according to preambles transmitted by UEs. With the method and apparatus of the embodiments of the present invention, coverage performance of an uplink channel and a downlink channel may be improved.

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