| 摘要 |
<p>The invention relates to a transmit diversity method for a wireless communication system comprising a transmitting element and at least one receiver, wherein a transmission signal is transmitted from the transmitting element to the at least one receiver in accordance with a weight information determined in response to a feedback information. The feedback information is derived from the response at the at least one receiver to the transmission signal, and is fed back using multiplexed feedback signals. Alternatively, the weight information may be determined at the transmitting element by filtering said feedback information and quantizing the filtered feedback information to a desired quantization constellation. Thus, multiple quantization constellations and combinations thereof and/or constellation specific feedback subchannels can be used for channel probing, such that the total feedback resolution can be enhanced, while maintaining low signaling capacity of the feedback channel.</p> |
