Scheduling of Fully Dynamic TDD Cellular Networks with Control Signaling Considerations

We study performances of Fully Dynamic Time Division Duplexing (FD-TDD) cellular networks with various scheduling and control signaling schemes, where the FD-TDD cellular networks operates with flexible timeslots, which can dynamically be assigned for either downlink (DL) or uplink (UL) transmission...

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Bibliographic Details
Published in2020 International Conference on Information and Communication Technology Convergence (ICTC) pp. 1089 - 1091
Main Authors Lee, Anseok, Lee, Heesoo
Format Conference Proceeding
LanguageEnglish
Published IEEE 21.10.2020
Subjects
Control Signaling
Dynamic TDD
Time Division Duplexing
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Summary:We study performances of Fully Dynamic Time Division Duplexing (FD-TDD) cellular networks with various scheduling and control signaling schemes, where the FD-TDD cellular networks operates with flexible timeslots, which can dynamically be assigned for either downlink (DL) or uplink (UL) transmission. To indicate DL or UL transmission, the BS generates downlink control information (DCI) and transmits via downlink control channel. For fully dynamic operation, control signalings for every timeslot are required and high control signaling overhead is accompanied. We propose a baseline scheduling algorithm for FD-TDD networks and provide advanced schemes considering control signaling constraints and overheads. Throughout extensive simulation studies, we provide performances of proposed schemes in FD-TDD networks. The results indicate that high degree of flexibility of FD-TDD network brings large control signaling overhead and performances are enhanced by the advanced control signaling schemes such as multiple slot transmission, relaxed uplink transmission timing, and early switchings.
DOI:10.1109/ICTC49870.2020.9289290