NODE UNIT OF DISTRIBUTED ANTENNA SYSTEM
The present invention relates to a distributed antenna system (DAS) and more specifically, relates to a reverse directional signal transmission operation of each node unit of a DAS system. According to an embodiment of the present invention, the node unit of the DAS comprises a signal input part and...
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| creator | KU, JIN HWA CHO, YOUNG MAN KIM, HYUNG HO KIM, DO YOON |
| description | The present invention relates to a distributed antenna system (DAS) and more specifically, relates to a reverse directional signal transmission operation of each node unit of a DAS system. According to an embodiment of the present invention, the node unit of the DAS comprises a signal input part and a digital signal processing part. The signal input part receives coded up-link signals of n from other connected units of n to be output. The digital signal processing part restores respective coded up-link signals into up-link signals of n by using a preset decoding method. n is a natural number not less than two. Other units are able to generate a coded up-link signal from a signal received through a service antenna by using a coding method corresponding to the decoding method. According to the present invention, the DAS transmits and receives a coded up-link signal such that security is enhanced; and a remote unit, which is abnormally operated, can be automatically detected.
본 발명은 분산 안테나 시스템(Distributed Antenna System, DAS)에 관한 것으로서, DAS 시스템의 각 노드유닛의 역방향 신호 전송 동작에 관한 것이다. 본 발명의 일 측면에 따른 분산 안테나 시스템의 노드유닛은, 연결된 n개의 타유닛으로부터 n개의 암호화업링크신호를 수신하여 출력하는 신호입력부 및 n개의 암호화업링크신호 각각을 미리 설정된 복호화방법을 이용하여 n개의 업링크신호로 복원하는 디지털신호처리부를 포함하되, n은 2 이상의 자연수이고, 타유닛은 서비스안테나를 통해 수신된 신호를 복화화방법에 대응되는 암호화방법을 이용하여 암호화업링크신호를 생성할 수 있다. 본 발명에 따른 분산 안테나 시스템에서는 암호화된 업링크신호가 송수신되므로 보안이 강화됨과 동시에 비정상적으로 동작하는 리모트 유닛이 자동으로 검출될 수 있다. |
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본 발명은 분산 안테나 시스템(Distributed Antenna System, DAS)에 관한 것으로서, DAS 시스템의 각 노드유닛의 역방향 신호 전송 동작에 관한 것이다. 본 발명의 일 측면에 따른 분산 안테나 시스템의 노드유닛은, 연결된 n개의 타유닛으로부터 n개의 암호화업링크신호를 수신하여 출력하는 신호입력부 및 n개의 암호화업링크신호 각각을 미리 설정된 복호화방법을 이용하여 n개의 업링크신호로 복원하는 디지털신호처리부를 포함하되, n은 2 이상의 자연수이고, 타유닛은 서비스안테나를 통해 수신된 신호를 복화화방법에 대응되는 암호화방법을 이용하여 암호화업링크신호를 생성할 수 있다. 본 발명에 따른 분산 안테나 시스템에서는 암호화된 업링크신호가 송수신되므로 보안이 강화됨과 동시에 비정상적으로 동작하는 리모트 유닛이 자동으로 검출될 수 있다.</description><language>eng ; kor</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; TRANSMISSION</subject><creationdate>2016</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20161130&DB=EPODOC&CC=KR&NR=20160136866A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20161130&DB=EPODOC&CC=KR&NR=20160136866A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KU, JIN HWA</creatorcontrib><creatorcontrib>CHO, YOUNG MAN</creatorcontrib><creatorcontrib>KIM, HYUNG HO</creatorcontrib><creatorcontrib>KIM, DO YOON</creatorcontrib><title>NODE UNIT OF DISTRIBUTED ANTENNA SYSTEM</title><description>The present invention relates to a distributed antenna system (DAS) and more specifically, relates to a reverse directional signal transmission operation of each node unit of a DAS system. According to an embodiment of the present invention, the node unit of the DAS comprises a signal input part and a digital signal processing part. The signal input part receives coded up-link signals of n from other connected units of n to be output. The digital signal processing part restores respective coded up-link signals into up-link signals of n by using a preset decoding method. n is a natural number not less than two. Other units are able to generate a coded up-link signal from a signal received through a service antenna by using a coding method corresponding to the decoding method. According to the present invention, the DAS transmits and receives a coded up-link signal such that security is enhanced; and a remote unit, which is abnormally operated, can be automatically detected.
본 발명은 분산 안테나 시스템(Distributed Antenna System, DAS)에 관한 것으로서, DAS 시스템의 각 노드유닛의 역방향 신호 전송 동작에 관한 것이다. 본 발명의 일 측면에 따른 분산 안테나 시스템의 노드유닛은, 연결된 n개의 타유닛으로부터 n개의 암호화업링크신호를 수신하여 출력하는 신호입력부 및 n개의 암호화업링크신호 각각을 미리 설정된 복호화방법을 이용하여 n개의 업링크신호로 복원하는 디지털신호처리부를 포함하되, n은 2 이상의 자연수이고, 타유닛은 서비스안테나를 통해 수신된 신호를 복화화방법에 대응되는 암호화방법을 이용하여 암호화업링크신호를 생성할 수 있다. 본 발명에 따른 분산 안테나 시스템에서는 암호화된 업링크신호가 송수신되므로 보안이 강화됨과 동시에 비정상적으로 동작하는 리모트 유닛이 자동으로 검출될 수 있다.</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>TRANSMISSION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFD383dxVQj18wxR8HdTcPEMDgnydAoNcXVRcPQLcfXzc1QIjgwOcfXlYWBNS8wpTuWF0twMym6uIc4euqkF-fGpxQWJyal5qSXx3kFGBoZmBobGZhZmZo7GxKkCAHOTJMA</recordid><startdate>20161130</startdate><enddate>20161130</enddate><creator>KU, JIN HWA</creator><creator>CHO, YOUNG MAN</creator><creator>KIM, HYUNG HO</creator><creator>KIM, DO YOON</creator><scope>EVB</scope></search><sort><creationdate>20161130</creationdate><title>NODE UNIT OF DISTRIBUTED ANTENNA SYSTEM</title><author>KU, JIN HWA ; CHO, YOUNG MAN ; KIM, HYUNG HO ; KIM, DO YOON</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20160136866A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; kor</language><creationdate>2016</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>TRANSMISSION</topic><toplevel>online_resources</toplevel><creatorcontrib>KU, JIN HWA</creatorcontrib><creatorcontrib>CHO, YOUNG MAN</creatorcontrib><creatorcontrib>KIM, HYUNG HO</creatorcontrib><creatorcontrib>KIM, DO YOON</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KU, JIN HWA</au><au>CHO, YOUNG MAN</au><au>KIM, HYUNG HO</au><au>KIM, DO YOON</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>NODE UNIT OF DISTRIBUTED ANTENNA SYSTEM</title><date>2016-11-30</date><risdate>2016</risdate><abstract>The present invention relates to a distributed antenna system (DAS) and more specifically, relates to a reverse directional signal transmission operation of each node unit of a DAS system. According to an embodiment of the present invention, the node unit of the DAS comprises a signal input part and a digital signal processing part. The signal input part receives coded up-link signals of n from other connected units of n to be output. The digital signal processing part restores respective coded up-link signals into up-link signals of n by using a preset decoding method. n is a natural number not less than two. Other units are able to generate a coded up-link signal from a signal received through a service antenna by using a coding method corresponding to the decoding method. According to the present invention, the DAS transmits and receives a coded up-link signal such that security is enhanced; and a remote unit, which is abnormally operated, can be automatically detected.
본 발명은 분산 안테나 시스템(Distributed Antenna System, DAS)에 관한 것으로서, DAS 시스템의 각 노드유닛의 역방향 신호 전송 동작에 관한 것이다. 본 발명의 일 측면에 따른 분산 안테나 시스템의 노드유닛은, 연결된 n개의 타유닛으로부터 n개의 암호화업링크신호를 수신하여 출력하는 신호입력부 및 n개의 암호화업링크신호 각각을 미리 설정된 복호화방법을 이용하여 n개의 업링크신호로 복원하는 디지털신호처리부를 포함하되, n은 2 이상의 자연수이고, 타유닛은 서비스안테나를 통해 수신된 신호를 복화화방법에 대응되는 암호화방법을 이용하여 암호화업링크신호를 생성할 수 있다. 본 발명에 따른 분산 안테나 시스템에서는 암호화된 업링크신호가 송수신되므로 보안이 강화됨과 동시에 비정상적으로 동작하는 리모트 유닛이 자동으로 검출될 수 있다.</abstract><oa>free_for_read</oa></addata></record> |
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| title | NODE UNIT OF DISTRIBUTED ANTENNA SYSTEM |
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