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  1. 5G | ShareTechnote

    WEBCharacteristics of 5G HARQ. ACK/NACK Timing in Slot Configuration. What is Redudandancy Version ? and How it works ? How many HARQ processor ? Example 01 > How HARQ Works ? The transmission and reception process involves transmitting data, receiving ACK or NACK, …

  2. 5G NR Hybrid ARQ - Devopedia

    WEBDec 16, 2021 · Learn how 5G NR Hybrid ARQ works at MAC and PHY layers to improve performance and reliability for URLLC and eMBB use cases. Understand the concepts of Incremental Redundancy, HARQ processes, feedback signalling and rate matching.

  3. People also ask
    Synchronous HARQ is not suitable in 5G NR due to dynamic TDD and operation in unlicensed spectra. In LTE synchronous UL HARQ, the same process ID is used every eighth subframe. An LTE UE responds with HARQ ACK 3ms after receiving the downlink data. 5G NR has more flexibility to respond faster for URLLC use cases.
    HARQ entity distributes the traffic among its processes. Each process handles one TB at a time but if downlink spatial multiplexing is configured, two TB s are possible. In downlink, HARQ processes are also used for slot aggregation, also called TTI bundling. In this case, a TB is retransmitted without waiting for ACK.
    However, Release 13 introduced asynchronous UL HARQ that's used by License-Assisted Access ( LAA ). Synchronous HARQ is not suitable in 5G NR due to dynamic TDD and operation in unlicensed spectra. In LTE synchronous UL HARQ, the same process ID is used every eighth subframe.
    Monte-Carlo simulation results reveal that the presented HARQ schemes can achieve throughput improvements up to 10% over block fading channels and up to 50% over fast fading channels in comparison with the original 5G CBG-level HARQ scheme but without excessively increasing the implementation complexity.
  4. 第551回:HARQとは - ケータイ Watch Watch

  5. Hybrid automatic repeat request - Wikipedia

  6. 5G | ShareTechnote

  7. HARQ を使用した 5G NR トランスポート チャネルのモデル化

  8. A new HARQ scheme for 5G systems via interleaved ...

  9. Enhanced HARQ Design for 5G Wide Area Technology - IEEE ...

  10. 5G Procedure, RAN Architecture, and Protocol | SpringerLink

  11. Subcode-Based Early HARQ for 5G - IEEE Xplore

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