18579393. PHASE ERROR COMPENSATION FOR IOT OVER NTN simplified abstract (Nokia Technologies Oy)
Contents
PHASE ERROR COMPENSATION FOR IOT OVER NTN
Organization Name
Inventor(s)
Gilsoo Lee of Naperville IL (US)
Tzu-Chung Hsieh of Naperville IL (US)
PHASE ERROR COMPENSATION FOR IOT OVER NTN - A simplified explanation of the abstract
This abstract first appeared for US patent application 18579393 titled 'PHASE ERROR COMPENSATION FOR IOT OVER NTN
Abstract: This disclosure presents methods to compensate for a phase drift in an uplink communication signal between a user equipment (UE) and a non-terrestrial network (NTN) node. Due to the change rate of velocity of the UE relative to the NTN node, a transmission signal can drift causing demodulation errors at the receiver. The UE can apply compensation processes to the transmission signal so that the received signal is closer to the original transmitted signal as compared to a non-compensated signal. Alternatively, the NTN node can apply compensation process to modify the reference phase to be closer to the phase of the received signal in the demodulation process. The location of the UE, as well as its relative elevation, can be used with the NTN node's location, to generate the compensation information. The compensation can be applied on a symbol-by-symbol basis or to a group of M symbols.
Key Features and Innovation:
- Methods to compensate for phase drift in uplink communication signals between UE and NTN node.
- Compensation processes applied by UE or NTN node to minimize demodulation errors.
- Utilization of location and relative elevation data to generate compensation information.
- Symbol-by-symbol or group-based compensation application.
Potential Applications:
- Satellite communication systems
- Mobile network infrastructure
- Internet of Things (IoT) devices with uplink communication needs
Problems Solved:
- Minimizing demodulation errors in uplink communication signals
- Addressing phase drift due to velocity changes between UE and NTN node
Benefits:
- Improved signal quality in uplink communication
- Enhanced reliability of data transmission
- Better performance in mobile and satellite communication systems
Commercial Applications: The technology can be applied in satellite communication systems, mobile network infrastructure, and IoT devices to enhance the quality and reliability of uplink communication signals. This innovation has the potential to improve data transmission efficiency and overall system performance in various industries.
Prior Art: Readers interested in exploring prior art related to compensating for phase drift in uplink communication signals may refer to research papers, patents, and technical articles in the fields of satellite communication, mobile networks, and signal processing.
Frequently Updated Research: Researchers in the field of satellite communication and mobile network technologies are continuously exploring methods to improve signal quality and reliability in uplink communication. Stay updated on the latest advancements in compensation techniques for phase drift in communication signals.
Questions about the Technology: 1. How does the compensation process help minimize demodulation errors in uplink communication signals? 2. What are the key factors considered in generating compensation information based on the location and relative elevation of the UE and NTN node?
Original Abstract Submitted
This disclosure presents methods to compensate for a phase drift in an uplink communication signal between a user equipment (UE) and a non-terrestrial network (NTN) node. Due to the change rate of velocity of the UE relative to the NTN node, a transmission signal can drift causing demodulation errors at the receiver. The UE can apply compensation processes to the transmission signal so that the received signal is closer to the original transmitted signal as compared to a non-compensated signal. Alternatively, the NTN node can apply compensation process to modify the reference phase to be closer to the phase of the received signal in the demodulation process. The location of the UE, as well as its relative elevation, can be used with the NTN node's location, to generate the compensation information. The compensation can be applied on a symbol-by-symbol basis or to a group of M symbols.
