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An Efficient Scheme for TDD LTE ICS Exploiting the Reciprocity of the Feedback Channel in TDD LTE Networks
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 Title & Authors
An Efficient Scheme for TDD LTE ICS Exploiting the Reciprocity of the Feedback Channel in TDD LTE Networks
Kim, Hyunchae; Im, Sungbin;
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 Abstract
It is essential to develop an estimation and cancellation algorithm for feedback signals in designing the interference cancellation systems (ICS) as a solution to extending the coverage of the TDD LTE networks. Unlike the radio access of FDD LTE networks, TDD networks utilize the same frequency band in downlink and uplink for radio access. For this reason, downlink and uplink are repeated in time and thus the estimation of the feedback signals in uplink and downlink, respectively, is periodically paused to cause performance degradation. In this study, the reciprocity of downlink and uplink is examined through experiments and exploiting the same frequency band in uplink and downlink, an efficient channel estimation and elimination algorithm is proposed since the algorithm utilizes the same structure for both downlink and uplink.
 Keywords
TDD;LTE;ICS;Reciprocity;Feedback Signal;
 Language
Korean
 Cited by
 References
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