发明名称 |
METHOD AND APPARATUS FOR MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) DOWNLINK TRANSMISSION CONTROL |
摘要 |
A Multi-Input Multi-Output (MIMO) downlink transmission control method that is related to communications technologies is disclosed in embodiments of the present invention. The method includes: obtaining a channel fading change rate and a feedback delay of a user; calculating out a closed-loop MIMO throughput gain according to the channel fading change rate and the feedback delay; and determining a downlink transmission mode according to the closed-loop MIMO throughput gain, wherein the downlink transmission mode includes a closed-loop mode or an open-loop mode. A MIMO downlink transmission control apparatus is also disclosed. In the embodiments of the present invention, a downlink transmission mode is selected according to the channel fading change rate (namely, mobility) and the feedback delay of the user, and therefore, different operation modes (an open-loop mode and a closed-loop mode) are supported simultaneously to facilitate multi-user joint transmission, and the downlink throughput is increased by using mobility difference between users. |
申请公布号 |
EP2416502(A1) |
申请公布日期 |
2012.02.08 |
申请号 |
EP20100766627 |
申请日期 |
2010.04.20 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
ZHANG, GONG;LONG, YI;HUANG, KAIBIN;CHENG, YONG;LIU, JIANNENG |
分类号 |
H04B7/04;H04B7/06 |
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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