发明名称 |
Apparatus for modulation in base station with smart antenna |
摘要 |
Provided is an apparatus for modulation in a base station with a smart antenna. The smart antenna system has many advantages that it is possible to deal with the large volume of subscribers; communication quality is increased; etc. However, the smart antenna system has disadvantages that cost is increased due to many antennas; base station transceivers have a complicated structure due to multiple antennas per base station; it is too complicated to manage resource and channel allocation; there is required compatibility with a conventional system; etc. The present invention provides an apparatus for modulation in a base station with a smart antenna, which can solve the foregoing problems by employing a modulator using a time division multiplexing method, a sector beam selector, and a TX beam former, thereby providing good compatibility regardless of a change in the number of base station sectors and the number of antennas.
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申请公布号 |
US2005135322(A1) |
申请公布日期 |
2005.06.23 |
申请号 |
US20040887361 |
申请日期 |
2004.07.09 |
申请人 |
LIM IN G.;KIM IL G.;PARK HYUNG I.;BANG SEUNG C.;JUNG HEE B. |
发明人 |
LIM IN G.;KIM IL G.;PARK HYUNG I.;BANG SEUNG C.;JUNG HEE B. |
分类号 |
H04B7/155;H04B7/04;H04B7/06;H04B7/216;H04W16/28;H04W88/08;(IPC1-7):H04B7/216 |
主分类号 |
H04B7/155 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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