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.
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申请公布号 |
US2010182967(A1) |
申请公布日期 |
2010.07.22 |
申请号 |
US20070666160 |
申请日期 |
2007.06.28 |
申请人 |
ZORBA BARAH NIZAR;PEREZ NEIRA ANA ISABEL |
发明人 |
ZORBA BARAH NIZAR;PEREZ NEIRA ANA ISABEL |
分类号 |
H04W52/04 |
主分类号 |
H04W52/04 |
代理机构 |
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主权项 |
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地址 |
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