Abstract
Methods and apparatus are disclosed for applying successive multi-rank beamforming strategies (e.g. successive precoding strategies) for the design of precoders over a set of parallel channels. Successive beamforming is applied to a narrow band channel model and is also applied for finer quantization of a single beamforming vector (e.g. recursive beamforming). A first embodiment provides the optimal approach with high complexity. An alternative embodiment provides successive beamforming for near optimal precoding selection with medium complexity. A low complexity method for precoder selection is also provided wherein a channel representative matrix for the set of parallel channels is determined and successive beamforming on the calculated channel representative is applied.
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| 4G | 18/09/2011 | ISLD-201109-019 | NEC CORP | Yes | Family Member | ||||
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| 4G | 18/01/2012 | ISLD-201202-003 | NEC CORP | Yes | Basis Patent | ||||
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