Method and base station for transmitting reference signals, and method and user equipment for receiving reference signals
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United States of America Patent
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Apr 28, 2015
Issued Date -
N/A
app pub date -
Mar 16, 2011
filing date -
Mar 16, 2010
priority date (Note) -
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Abstract
A method and apparatus for multiplexing reference signals in a predetermined number of Code Division Multiplexing (CDM) groups to balance power across Orthogonal Frequency Division Multiplexing (OFDM) symbols are disclosed. In a wireless communication system, orthogonal sequences used for spreading the reference signals are allocated such that the order of orthogonal sequences allocated to a subcarrier of one CDM group has a predetermined offset with respect to the order of orthogonal sequences allocated to a subcarrier of another CDM group, adjacent to the subcarrier of the one CDM group.
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