Methods and apparatus for non-terrestrial communications for wireless communications
CN122421041APending Publication Date: 2026-07-17SHANGHAI CODUS TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI CODUS TECHNOLOGY CO LTD
- Filing Date
- 2025-01-16
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing NTN systems, how to obtain the transmission time of uplink physical layer information when the UE does not support GNSS or has not obtained a valid GNSS location is an urgent problem to be solved.
Method used
By receiving the first signaling configured with ephemeris and reference signal transmission timing, and utilizing the difference between the transmission and reception timing of the reference signal, the transmission time of physical layer information is determined, thus solving the problem of obtaining uplink transmission time.
Benefits of technology
This technology enables the UE to accurately obtain the transmission time of uplink physical layer information without relying on GNSS, thereby enhancing the UE's positioning function and transmission accuracy.
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Figure CN122421041A_ABST
Abstract
本申请公开了被用于无线通信的非地面通信的方法和装置。通信节点接收第一信令，所述第一信令配置第一星历和第一参考信号的发送定时；接收所述第一参考信号；发送第一物理层信息；所述第一物理层信息的发送时间依赖所述第一参考信号的所述发送定时和所述第一参考信号的接收定时的差异；所述第一参考信号的所述发送定时和所述第一星历相关联。本申请提出的在NTN场景下获取上行链路同步定时的方法不依赖GNSS，有利于UE进行NTN通信。
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