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专利名称：Transmit beamforming systems and
methods
发明人：Hongyuan Zhang,Rohit U. Nabar申请号：US12407345申请日：20090319公开号：US08638875B1公开日：20140128
专利附图：
摘要：A system includes a transmitting module, a mapping module, and an updatingmodule. The transmitting module transmits a first set of data streams using Nsubcarriers when a wireless device operates in a first mode. The transmitting module
transmits a second set of data streams using M subcarriers when the device operates in asecond mode. N and M are integers greater than or equal to 1. The mapping modulemaps the first set of data streams to a first set of antennas of the device based on a firstset of mapping values and maps the second set of data streams to a second set ofantennas of the device based on a second set of mapping values. The updating modulegenerates the second set of mapping values based on the first set of mapping valueswhen the device transitions from the first mode to the second mode.
申请人：Hongyuan Zhang,Rohit U. Nabar
地址：Sunnyvale CA US,Sunnyvale CA US
国籍：US,US
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