发明名称 |
POWER ALLOCATION METHOD IN MULTIANTENNA SYSTEMS UNDER PARTIAL CHANNEL KNOWLEDGE |
摘要 |
Method for allocating a minimum downlink power from a transmitter (1) having nt transmit antennas of a cellular multi-user multi-antenna communications system with N users attached to said transmitter (1). Each user comprises at least one antenna. The method comprising the steps of: generating at said transmitter (1) M random beams (b1 . . . bM); sending said M random beams through all the transmit antennas; calculating at each user a signal-to-noise-interference-ratio for each random beam sent by said transmitter (1); sending back to said transmitter (1) said calculated values of signal-to-noise-interference-ratio, said signal-to-noise-interference-ratio representing a partial channel state information; selecting at said transmitter (1) the M best users which correspond to the M best values of signal-to-noise-interference-ratio per beam. |
申请公布号 |
EP2160849(B1) |
申请公布日期 |
2014.07.09 |
申请号 |
EP20070765706 |
申请日期 |
2007.06.28 |
申请人 |
FUNDACIO PRIVADA CENTRE TECNOLOGIC DE TELECOMUNICACIONS DE CATALUNYA |
发明人 |
ZORBA BARAH, NIZAR;PEREZ NEIRA, ANA, ISABEL |
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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