17812852. CARRIER FREQUENCY ERROR ESTIMATION USING A BANK OF ESTIMATORS WITH LIMITED ACQUISITION RANGE simplified abstract (Samsung Electronics Co., Ltd.)

CARRIER FREQUENCY ERROR ESTIMATION USING A BANK OF ESTIMATORS WITH LIMITED ACQUISITION RANGE

Organization Name

Samsung Electronics Co., Ltd.

Inventor(s)

Farshid Nowshadi of Cambridge (GB)

Jacob Christopher Sharpe of Cambridge (GB)

CARRIER FREQUENCY ERROR ESTIMATION USING A BANK OF ESTIMATORS WITH LIMITED ACQUISITION RANGE - A simplified explanation of the abstract

This abstract first appeared for US patent application 17812852 titled 'CARRIER FREQUENCY ERROR ESTIMATION USING A BANK OF ESTIMATORS WITH LIMITED ACQUISITION RANGE

Simplified Explanation

Techniques and systems for extending the capture range of frequency offset error detection are described in this patent application. The innovation involves the use of efficient frequency estimation structures, such as zero crossing minimum/maximum (min/max) structures, to extend the capture range of carrier frequency offset error. This is achieved by running a bank (set) of parallel capture range structures that trial different frequency errors.

Key points of the patent/innovation:

• Efficient frequency estimation structures, such as zero crossing min/max structures, are used to extend the capture range of frequency offset error detection.
• A bank (set) of parallel capture range structures is employed to trial different frequency errors, thereby increasing the range of detectable errors.
• Frequency offset estimation circuits and correlation circuits (e.g., 1-bit correlators) are used on parallel streams to perform correlation operations on each branch of a received bit stream.
• Correlation operations are performed to determine correlations with known preamble patterns, allowing accurate estimation of large frequency offset errors.

Potential applications of this technology:

• Wireless communication systems: This innovation can be applied in wireless communication systems to improve the accuracy of frequency offset error detection, leading to better signal quality and overall system performance.
• Satellite communication: The extended capture range of frequency offset error detection can be beneficial in satellite communication systems, where accurate frequency estimation is crucial for reliable data transmission.
• Radar systems: Radar systems can benefit from this technology by improving the accuracy of frequency offset error detection, resulting in more precise target tracking and detection.

Problems solved by this technology:

• Limited capture range: Traditional frequency offset error detection techniques have a limited capture range, which can lead to inaccurate frequency estimation and degraded system performance. This innovation solves this problem by extending the capture range using parallel capture range structures.
• Inaccurate frequency estimation: Large frequency offset errors can be challenging to accurately estimate using conventional methods. The use of correlation operations with known preamble patterns helps overcome this problem and enables accurate estimation even for large frequency offset errors.

Benefits of this technology:

• Improved signal quality: By extending the capture range of frequency offset error detection, this technology improves the signal quality in communication systems, leading to better data transmission and reception.
• Enhanced system performance: Accurate frequency offset estimation contributes to overall system performance improvement, ensuring reliable and efficient communication.
• Cost-effective solution: The use of efficient frequency estimation structures and parallel capture range structures provides a cost-effective solution for extending the capture range of frequency offset error detection, without requiring significant hardware modifications.

Original Abstract Submitted

Techniques and systems for extending the capture range of frequency offset error detection are described. For instance, the present disclose describes efficient frequency estimation structures (e.g., zero crossing minimum/maximum (min/max) structures) that may extend carrier frequency offset error capture range by running a bank (e.g., a set) of parallel capture range structures trialing different frequency errors. In some aspects, a set of frequency offset estimation circuits and a set of correlation circuits (e.g., 1-bit correlators) may be used on parallel streams to perform correlation operations on each branch of a received bit stream to determine correlations with known preamble patterns (e.g., to accurately estimate large frequency offset errors).