Telefonaktiebolaget lm ericsson (publ) (20240250850). Channel Estimation Technique simplified abstract

Channel Estimation Technique

Organization Name

telefonaktiebolaget lm ericsson (publ)

Inventor(s)

Gustav Almquist of Järfälla (SE)

Jung-Fu Cheng of Fremont CA (US)

Stephen Grant of Pleasanton CA (US)

Channel Estimation Technique - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240250850 titled 'Channel Estimation Technique

The abstract describes a method for performing channel estimation in a radio access network between a transmitter and a receiver.

• Initial channel estimation is performed for each frequency range based on received radio signals.
• Signal sequences in each frequency range are used to obtain initial channel estimates.
• A filter is applied to the initial channel estimates, with a length in the frequency domain greater than the lengths of the frequency ranges.
• Filtered channel estimates are obtained for all subcarriers in each frequency range.

• • Potential Applications:**

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

• • Problems Solved:**

- Improving channel estimation accuracy - Enhancing signal quality in radio channels - Optimizing data transmission in wireless networks

• • Benefits:**

- Increased reliability of communication - Better performance in varying channel conditions - Enhanced overall network efficiency

• • Commercial Applications:**

Title: Advanced Channel Estimation Technology for Wireless Networks This technology can be utilized in 5G networks, IoT devices, and satellite communications to improve signal quality and data transmission efficiency, leading to better user experiences and increased network reliability.

• • Questions about Channel Estimation:**

1. How does the length of the filter impact the accuracy of channel estimation?

  - The length of the filter in the frequency domain affects the resolution and precision of the channel estimates, with longer filters providing more detailed information about the channel characteristics.

2. What are the key factors influencing the performance of channel estimation in radio access networks?

  - Factors such as signal-to-noise ratio, multipath effects, and interference levels can significantly impact the accuracy and reliability of channel estimation in radio networks.

Original Abstract Submitted

a method of performing channel estimation for a radio channel between a transmitter and a receiver of a radio access network, ran comprises the step of performing an initial channel estimation () of the radio channel for each of a plurality of frequency ranges (), based on a radio signal received on the radio channel from the transmitter, the radio signal comprising a signal sequence () out of the set of signal sequences () in each of the frequency ranges (), to obtain an initial channel estimate () for each frequency range (), and applying a filter () to the initial channel estimates () for the frequency ranges (), a length () of the filter () in the frequency domain being greater than lengths of the frequency ranges (), to obtain a filtered channel estimate () for all subcarriers () in the respective one of the frequency ranges ().