Dynamic Time Division Duplexing for Full Dimension MIMO in 5G System

Jae Won Lee, Chung G. Kang, Min Joong Rim

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    3 Citations (Scopus)

    Abstract

    Dynamic time division duplexing (TDD) allows for flexible resource allocation on downlink (DL) and uplink (UL) traffic demand. The independent DL and UL frame structure in each cell will be useful for the varying traffic condition,especially when the number of active users is highly limited,e.g.,in a small cell. However,the dynamic TDD scheme suffers from cross-link interference (CLI) incurred by DL and UL transmission at the same time in the adjacent cells,respectively. In this paper,we consider a user-slot mapping scheme that combines both static and dynamic features of TDD slot allocation into a beam angle-ordered,or joint SINR and beam angle-ordered arrangement,so that CLI be naturally handled without resorting to any sophisticated system-wide optimization process in full dimension MIMO system. Our system-level simulation results demonstrate that the proposed mapping scheme improves the performance of dynamic TDD system without compromising the lower 5% UE performance,by reducing the CLI.

    Original languageEnglish
    Title of host publicationProceedings - 2019 11th International Conference on Computational Intelligence and Communication Networks, CICN 2019
    EditorsJason Levy, Geetam S. Tomar
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages41-45
    Number of pages5
    ISBN (Electronic)9781538684399
    DOIs
    Publication statusPublished - 2019 Jan
    Event11th International Conference on Computational Intelligence and Communication Networks, CICN 2019 - Honolulu, United States
    Duration: 2019 Jan 32019 Jan 6

    Publication series

    NameProceedings - 2019 11th International Conference on Computational Intelligence and Communication Networks, CICN 2019

    Conference

    Conference11th International Conference on Computational Intelligence and Communication Networks, CICN 2019
    Country/TerritoryUnited States
    CityHonolulu
    Period19/1/319/1/6

    Bibliographical note

    Funding Information:
    ACKNOWLEDGMENT This work was supported by ’The Cross-Ministry Giga KOREA Project’ grant funded by the Korea government (MSIT) (No. GK18S0400, Research and Development of Open 5G Reference Model)

    Publisher Copyright:
    © 2019 IEEE.

    Keywords

    • New Radio (NR)
    • cross-link interference (CLI)
    • dynamic TDD
    • hybrid TDD
    • system-level simulation (SLS)
    • time division duplexing (TDD)

    ASJC Scopus subject areas

    • Artificial Intelligence
    • Computer Networks and Communications

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