发明名称 |
AMPLIFIER GAIN CONTROLLING METHOD AND APPARATUS FOR MULTI-ANTENNA WIRELESS SYSTEM |
摘要 |
<p>A base transceiver station (BTS) identifies the number of currently connected antenna units by receiving a signal to which 1 is added in each antenna unit via a signal line (16) connecting the antenna units (AU1 to AUn) in series. The target output power of each antenna unit, which is obtained by dividing the total target output power of the antenna units by the number of currently connected antenna units, is passed to each antenna unit via a signal line (14) connecting the antenna units in series. Each antenna unit controls the gain of a variable gain amplifier so that its output power becomes equal to the target output power.</p> |
申请公布号 |
EP1796286(A1) |
申请公布日期 |
2007.06.13 |
申请号 |
EP20040788413 |
申请日期 |
2004.09.30 |
申请人 |
FUJITSU LTD. |
发明人 |
HASHIGAMI, TAKAHITO;FUNAKUBO, TOSHIAKI |
分类号 |
H04B7/08;H04B7/26;H04W52/42 |
主分类号 |
H04B7/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|