Method and apparatus for allocating downlink resources in a multiple-input multiple-output (MIMO) communication system
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United States of America Patent
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Dec 9, 2003
Grant Date -
May 8, 2003
app pub date -
May 16, 2001
filing date -
May 16, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Techniques to schedule downlink data transmission to a number of terminals in a wireless communication system. In one method, one or more sets of terminals are formed for possible data transmission, with each set including a unique combination of one more terminals and corresponding to a hypothesis to be evaluated. One or more sub-hypotheses may further be formed for each hypothesis, with each sub-hypothesis corresponding to specific assignments of a number of transmit antennas to the one or more terminals in the hypothesis. The performance of each sub-hypothesis is then evaluated, and one of the evaluated sub-hypotheses is selected based on their performance. The terminal(s) in the selected sub-hypothesis are then scheduled for data transmission, and data is thereafter coded, modulated, and transmitted to each scheduled terminal from one or more transmit antennas assigned to the terminal.
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