http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20050021975-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W16-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01Q3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-155 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01Q3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B7-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B7-155 |
| filingDate | 2003-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2005-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20050021975-A |
| titleOfInvention | A three-dimension coverage cellular network |
| abstract | Disclosed are a network, method, base station, and antenna for establishing three-dimensional cellular signal coverage in a cellular communication system, particularly in the upper floors of urban skyscrapers. In order to extend the base station coverage to the space above the ground surface, the uptilt antenna and the downtilt antenna are combined with each other to share the base station transceiver, thus sharing the cellular frequency spectrum, thereby extending coverage and avoiding interference. The downtilt antenna covers the earth's surface, and the uptilt antenna covers the space above the earth's surface, in particular the top floor of a tall building in the cell. The multibeam multitilt base station antenna replaces the downtilt and uptilt antennas to provide three dimensional coverage with one antenna. The multibeam multitilt base station antenna has one beam directed downward to cover the ground surface at the base station and another beam directed upward to cover the space above the ground surface. |
| priorityDate | 2002-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.