发明名称 |
SYSTEMS AND METHODS FOR RADIO FREQUENCY CALIBRATION EXPLOITING CHANNEL RECIPROCITY IN DISTRIBUTED INPUT DISTRIBUTED OUTPUT WIRELESS COMMUNICATIONS |
摘要 |
Systems and methods are described for radio frequency (RF) calibration in a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”) exploiting uplink/downlink channel reciprocity. The RF calibration is used to compute open-loop downlink precoder based on uplink channel estimates, thereby avoiding feedback overhead for channel state information as in closed-loop schemes. For example, a MU-MAS of one embodiment comprises a wireless cellular network with one or multiple beacon stations, multiple client devices and multiple distributed antennas operating cooperatively via precoding methods to eliminate inter-client interference and increase network capacity. |
申请公布号 |
EP2974391(A1) |
申请公布日期 |
2016.01.20 |
申请号 |
EP20140770916 |
申请日期 |
2014.03.12 |
申请人 |
REARDEN LLC |
发明人 |
FORENZA, ANTONIO;SAIBI, FADI;PITMAN, TIMOTHY A.;PERLMAN, STEPHEN G. |
分类号 |
H04W4/00;H04B17/12 |
主分类号 |
H04W4/00 |
代理机构 |
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地址 |
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