20240080224.TRACKING REFERENCE SIGNAL (TRS) ENHANCEMENT WITH DOPPLER SHIFT PRE-COMPENSATION simplified abstract (apple inc.)

TRACKING REFERENCE SIGNAL (TRS) ENHANCEMENT WITH DOPPLER SHIFT PRE-COMPENSATION

Organization Name

apple inc.

Inventor(s)

Haitong Sun of Cupertino CA (US)

Dawei Zhang of Saratoga CA (US)

Wei Zeng of Saratoga CA (US)

Yushu Zhang of Beijing (CN)

Hong He of San Jose CA (US)

Huaning Niu of San Jose CA (US)

Weidong Yang of San Diego CA (US)

Oghenekome Oteri of San Diego CA (US)

Seyed Ali Akbar Fakoorian of San Diego CA (US)

Sigen Ye of Whitehouse Station NJ (US)

Chunhai Yao of Beijing (CN)

TRACKING REFERENCE SIGNAL (TRS) ENHANCEMENT WITH DOPPLER SHIFT PRE-COMPENSATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240080224 titled 'TRACKING REFERENCE SIGNAL (TRS) ENHANCEMENT WITH DOPPLER SHIFT PRE-COMPENSATION

Simplified Explanation

Some aspects of this disclosure relate to apparatuses and methods for implementing mechanisms for a network to use Doppler shift pre-compensation values for communicating tracking reference signal (TRS) to a user equipment (UE) and for triggering the UE to measure the Doppler shift pre-compensated TRS. Some aspects of this disclosure relate to a base station including a processor that determines a Doppler shift pre-compensation value associated with the UE in response to determining that the UE is moving with a speed greater than a threshold. The processor further generates an aperiodic tracking reference signal (AP-TRS) or a semi-persistent TRS (SP-TRS) for the UE. The AP-TRS or the SP-TRS is decoupled from a periodic TRS (P-TRS). The processor further transmits the AP-TRS or the SP-TRS to the UE. The AP-TRS or the SP-TRS can be used for time and frequency synchronization.

• Apparatuses and methods for implementing mechanisms for a network to use Doppler shift pre-compensation values for communicating tracking reference signal (TRS) to a user equipment (UE).
• Base station includes a processor that determines a Doppler shift pre-compensation value associated with the UE in response to determining that the UE is moving with a speed greater than a threshold.
• Processor generates an aperiodic tracking reference signal (AP-TRS) or a semi-persistent TRS (SP-TRS) for the UE, decoupled from a periodic TRS (P-TRS).
• AP-TRS or SP-TRS is transmitted to the UE for time and frequency synchronization.

Potential Applications

The technology described in the patent application could be applied in the following areas:

• Wireless communication systems
• Mobile networks
• Internet of Things (IoT) devices

Problems Solved

The technology addresses the following issues:

• Doppler shift effects on communication signals
• Ensuring accurate time and frequency synchronization in mobile environments

Benefits

The technology offers the following benefits:

• Improved communication reliability in high-speed mobile scenarios
• Enhanced performance of tracking reference signals in wireless networks

Potential Commercial Applications

The technology could have commercial applications in:

• Telecommunications companies
• Mobile device manufacturers
• Network equipment providers

Possible Prior Art

One possible prior art related to this technology is the use of Doppler shift compensation techniques in satellite communication systems to mitigate signal distortion caused by relative motion between the satellite and the ground station.

Unanswered Questions

How does the technology handle variations in Doppler shift compensation values based on different speeds of the UE?

The patent abstract does not provide specific details on how the technology adjusts Doppler shift pre-compensation values for varying speeds of the user equipment.

What impact does the decoupling of aperiodic tracking reference signals (AP-TRS) or semi-persistent TRS (SP-TRS) from periodic TRS (P-TRS) have on overall network performance?

The abstract does not elaborate on the potential implications of decoupling different types of tracking reference signals on network efficiency and reliability.

Original Abstract Submitted

some aspects of this disclosure relate to apparatuses and methods for implementing mechanisms for a network to use doppler shift pre-compensation values for communicating tracking reference signal (trs) to a user equipment (ue) and for implementing mechanisms for triggering the ue to measure the doppler shift pre-compensated trs. some aspects of this disclosure relate to a base station including a processor that determines a doppler shift pre-compensation value associated with the ue in response to determining that the ue is moving with a speed greater than a threshold. the processor further generates an aperiodic tracking reference signal (ap-trs) or a semi persistent trs (sp-trs) for the ue. the ap-trs or the sp-trs is decoupled from a periodic trs (p-trs). the processor further transmits the ap-trs or the sp-trs to the ue. the ap-trs or the sp-trs can be used for time and frequency synchronization.