发明名称 |
METHOD AND APPARATUS FOR ANTENNA CALIBRATION |
摘要 |
Method and apparatus for antenna calibration have been disclosed. A radio unit (510) is provided. The radio unit (510) may comprise: a plurality of transmit/receive (TX/RX) paths; a plurality of radio frequency (RF) ports (512) connected with the plurality of TX/RX paths; and a coupling unit (516), coupled with the plurality of TX/RX paths and configured to inject an uplink (UL) calibration signal (550) into at least one of the plurality of TX/RX paths and extract a downlink (DL) calibration signal (540) from at least one of the plurality of TX/RX paths. A normal TX/RX path may be reused both for antenna calibration and antenna supervision. Thus, a low cost hardware solution for antenna calibration is provided. An AIR base station (500) comprising such radio unit (510) is also provided. |
申请公布号 |
EP2896137(A1) |
申请公布日期 |
2015.07.22 |
申请号 |
EP20120884534 |
申请日期 |
2012.09.13 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
CHEN, JIA;SU, YOUPING;WEI, MIN |
分类号 |
H04B7/04 |
主分类号 |
H04B7/04 |
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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