View source for 17441962. SYSTEM AND METHOD FOR HIGH SPEED DOPPLER COMPENSATION IN A CELLULAR ENVIRONMENT simplified abstract (Apple Inc.)

=SYSTEM AND METHOD FOR HIGH SPEED DOPPLER COMPENSATION IN A CELLULAR ENVIRONMENT=


==Organization Name==

[[:Category:Apple Inc.|Apple Inc.]]


[[Category:Apple Inc.]]

==Inventor(s)==

[[:Category:Haitong Sun of Cupertino CA (US)|Haitong Sun of Cupertino CA (US)]][[Category:Haitong Sun of Cupertino CA (US)]]

[[:Category:Wei Zeng of Saratoga CA (US)|Wei Zeng of Saratoga CA (US)]][[Category:Wei Zeng of Saratoga CA (US)]]

[[:Category:Yushu Zhang of Beijing (CN)|Yushu Zhang of Beijing (CN)]][[Category:Yushu Zhang of Beijing (CN)]]

[[:Category:Hong He of San Jose CA (US)|Hong He of San Jose CA (US)]][[Category:Hong He of San Jose CA (US)]]

[[:Category:Oghenekome Oteri of San Diego CA (US)|Oghenekome Oteri of San Diego CA (US)]][[Category:Oghenekome Oteri of San Diego CA (US)]]

[[:Category:Sigen Ye of Whitehouse Station NJ (US)|Sigen Ye of Whitehouse Station NJ (US)]][[Category:Sigen Ye of Whitehouse Station NJ (US)]]

[[:Category:Weidong Yang of San Diego CA (US)|Weidong Yang of San Diego CA (US)]][[Category:Weidong Yang of San Diego CA (US)]]

[[:Category:Chunxuan Ye of San Diego CA (US)|Chunxuan Ye of San Diego CA (US)]][[Category:Chunxuan Ye of San Diego CA (US)]]

[[:Category:Chunhai Yao of Bejing (CN)|Chunhai Yao of Bejing (CN)]][[Category:Chunhai Yao of Bejing (CN)]]

[[:Category:Dawei Zhang of Saratoga CA (US)|Dawei Zhang of Saratoga CA (US)]][[Category:Dawei Zhang of Saratoga CA (US)]]

==SYSTEM AND METHOD FOR HIGH SPEED DOPPLER COMPENSATION IN A CELLULAR ENVIRONMENT - A simplified explanation of the abstract==


This abstract first appeared for US patent application 17441962 titled 'SYSTEM AND METHOD FOR HIGH SPEED DOPPLER COMPENSATION IN A CELLULAR ENVIRONMENT

==Simplified Explanation==

Methods and apparatuses are disclosed for calculating and compensating for Doppler shift in a high-speed environment. This technology addresses the issue of Doppler shifts on transmitted radio frequency signals becoming extremely large in high-speed environments, making it difficult for receiving devices to accurately decipher the signals.

* Tracking reference signals (TRS) are transmitted from multiple transmission/reception points (TRPs) and processed by the user equipment (UE).
* The TRS transmitted from a TRP can be enhanced to include TRS information from two different TRPs.
* A flag can be set within the TRS information to identify its origin from either the first or second TRP.
* The UE can calculate Doppler shift information and report it back to the base station in a report message, such as a sounding reference signal (SRS) message.
* The base station can then precompensate for the Doppler shift based on the reported information.

== Potential Applications ==
* Wireless communication systems in high-speed environments, such as high-speed trains or vehicles.
* Mobile communication networks in areas with fast-moving users, such as sports events or crowded public transportation.

== Problems Solved ==
* Large Doppler shifts in high-speed environments can cause difficulties in accurately decoding radio frequency signals.
* Traditional methods may not be sufficient to compensate for these large Doppler shifts.

== Benefits ==
* Improved accuracy in decoding radio frequency signals in high-speed environments.
* Enhanced communication reliability in fast-moving scenarios.
* Efficient precompensation for Doppler shift, leading to better overall system performance.


==Original Abstract Submitted==

Methods and apparatuses are disclosed for calculating and compensating for Doppler shift in a high-speed environment. When in a high-speed environment, Doppler shifts on a transmitted radio frequency signal can become extremely large, which may make it difficult or even impossible for a receiving device to accurately decipher the signal. Therefore, embodiments of the present disclosure describe how tracking reference signals can be transmitted from multiple transmission/reception points, and processed by the UE. For example, the TRS transmitted from the TRP can be enhanced to allow for TRS information from two different TRPs. Additionally, or alternatively, a flag can be set within TRS information that identifies it as having originated from either a first TRP or a second TRP. Additionally, the UE can calculate Doppler shift information and report that information back to the base station in a report message, such as an SRS message. In this manner, the base station can precompensate for the Doppler shift.



[[Category:H04L5/00]]
[[Category:H04B7/01]]