Scholarlink

<p>In fifth-generation (5G) wireless systems, support for non-terrestrial networks (NTN) was added. Physical layer challenges in the deployment of 5G NTN systems include the dependence of synchronization on the position of the user equipment (UE) that is derived using a global navigation satellite system (GNSS) and on the position of the satellite. In this paper, a solution is presented for position-independent synchronization of sixth-generation (6G) NTN systems. By using a combination of open-loop and closed-loop uplink corrections, the timing and frequency errors can be minimized at the receiver side, without the need for GNSS-based pre-compensation. By means of simulations, lab emulations, and over-satellite testing, we prove that synchronization can be achieved without GNSS and without any signal-to-noise ratio degradation, and with mobility of the satellite and UE.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Enhancing the physical layer of 6G non-terrestrial networks: position-independent synchronization

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月3日

查看全文
  • Brecht De Beelde,
  • Philippe Delbeke,
  • Sander Cornelis,
  • Brecht Reynders,
  • Dieter Duyck

摘要

In fifth-generation (5G) wireless systems, support for non-terrestrial networks (NTN) was added. Physical layer challenges in the deployment of 5G NTN systems include the dependence of synchronization on the position of the user equipment (UE) that is derived using a global navigation satellite system (GNSS) and on the position of the satellite. In this paper, a solution is presented for position-independent synchronization of sixth-generation (6G) NTN systems. By using a combination of open-loop and closed-loop uplink corrections, the timing and frequency errors can be minimized at the receiver side, without the need for GNSS-based pre-compensation. By means of simulations, lab emulations, and over-satellite testing, we prove that synchronization can be achieved without GNSS and without any signal-to-noise ratio degradation, and with mobility of the satellite and UE.