Title:
NODE UNIT CAPABLE OF MEASURING AND COMPENSATING TRANSMISSION DELAY, AND DISTRIBUTED ANTENNA SYSTEM COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2016/108311
Kind Code:
A1
Abstract:
Provided is a node unit which is branch-connected to another communication node via a transport medium, the node unit comprising: a delay measurement unit which transmits a test signal for measuring a delay to an adjacent node unit of the branch-connected upper stage via the transport medium and detects a loopback signal to which the test signal is looped back via the adjacent node unit of the upper stage, thereby measuring an upper stage transmission delay between adjacent nodes of the upper stage; a delay summation unit which, when an adjacent node unit of the branch-connected lower stage exists, receives a lower stage transmission delay transmitted from the adjacent node unit of the lower stage, and sums up the upper stage transmission delay and the lower stage transmission delay; and a control unit which transmits the summed transmission delay to the adjacent node unit of the upper stage.
Inventors:
KIM DO YOON (KR)
Application Number:
PCT/KR2014/013102
Publication Date:
July 07, 2016
Filing Date:
December 31, 2014
Export Citation:
Assignee:
SOLID INC (KR)
International Classes:
H04B17/14; H04B17/10
Domestic Patent References:
| WO2011050491A1 | 2011-05-05 |
Foreign References:
| KR20140051244A | 2014-04-30 | |||
| US20140162713A1 | 2014-06-12 | |||
| KR101416667B1 | 2014-07-09 | |||
| JP2013038631A | 2013-02-21 |
Attorney, Agent or Firm:
ZENA PATENT LAW FIRM (KR)
특허법인 제나 (KR)
특허법인 제나 (KR)
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