Implementation of Bi-Directional Single Adaptive Algorithm for TDD-Based Interference Cancellation Repeater 


Vol. 44,  No. 6, pp. 1048-1054, Jun.  2019
10.7840/kics.2019.44.6.1048


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  Abstract

An interference cancellation system(ICS) for a TDD system, such as 5G-NR or TD-LTE, has the same feedback channel information on the DL, and UL due to the channel reciprocity. Therefore, the interference cancellation can be performed by a single adaptive algorithm continuously regardless of the direction, however, the different characteristics of RF stages for DL and UL inside the repeater must be compensated. This paper presents a time division ICS(TD-ICS) that compensates for the time-varying amplitude and phase difference of the the RF stages, and avoids oscillation during the DL/UL transitions, so that it can operate in an optimum state with a single adaptive algorithm. The validity of the proposed scheme is verified by simulation using TD-LTE like signals.

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  Cite this article

[IEEE Style]

C. Kim, "Implementation of Bi-Directional Single Adaptive Algorithm for TDD-Based Interference Cancellation Repeater," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 6, pp. 1048-1054, 2019. DOI: 10.7840/kics.2019.44.6.1048.

[ACM Style]

Chonghoon Kim. 2019. Implementation of Bi-Directional Single Adaptive Algorithm for TDD-Based Interference Cancellation Repeater. The Journal of Korean Institute of Communications and Information Sciences, 44, 6, (2019), 1048-1054. DOI: 10.7840/kics.2019.44.6.1048.

[KICS Style]

Chonghoon Kim, "Implementation of Bi-Directional Single Adaptive Algorithm for TDD-Based Interference Cancellation Repeater," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 6, pp. 1048-1054, 6. 2019. (https://doi.org/10.7840/kics.2019.44.6.1048)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880