Method and apparatus for transmission in a wireless communication network
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United States of America Patent
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Dec 5, 2017
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app pub date -
Dec 5, 2016
filing date -
Dec 5, 2016
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Abstract
A node in a wireless communication network uses a modified data-to-subcarrier mapping on at least a selective basis, wherein the modified mapping effectively extends the cyclic prefix (CP) of a transmission targeted to a given receiver without extending the CP of the Orthogonal Frequency Division Multiplex (OFDM) symbol in which the transmission is conveyed. This approach allows, for example, the node to use a first or normal data-to-subcarrier mapping for transmissions that are targeted to receivers that do not need an effective increase of the CP length, while using the modified mapping for those receivers that need a longer effective CP length, e.g., because of receiver type or channel conditions.
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