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:
Feb. 14, 2017

Filed:

Mar. 24, 2016
Applicant:

Solid, Inc., Seongnam-si, Gyeonggi-do, KR;

Inventors:

Kwangnam Seo, Guri-si, KR;

Doyoon Kim, Bucheon-si, KR;

Hyoungho Kim, Seoul, KR;

Assignee:

SOLID, INC., Seongnam-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 88/00 (2009.01); H04W 72/12 (2009.01); H04W 72/04 (2009.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04W 72/1268 (2013.01); H04W 72/0413 (2013.01); H04W 88/085 (2013.01);
Abstract

The inventive concept relates to a distributed antenna system (DAS), and more particularly, to an uplink signal transmission operation of each of node units constituting a DAS. A node unit of a DAS includes a signal input/output unit configured to receive m uplink signals from m lower node units and output the m uplink signals, and a multiplexer configured to generate a single uplink signal by selectively outputting any one of the m uplink signals at an interval of a predetermined output time. Accordingly, it is possible to provide a DAS capable of processing and outputting, as one signal, uplink signals received from a plurality of remote units, without any error.


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