Ata Sattarzadeh Hashemi

Title: Innovations of Ata Sattarzadeh Hashemi

Introduction

Ata Sattarzadeh Hashemi is a notable inventor based in Guildford, GB. He has made significant contributions to the field of telecommunications, particularly in the area of scrambling sequence initialization. With a total of 4 patents to his name, his work has implications for improving data transmission efficiency.

Latest Patents

One of his latest patents is titled "Recovering scrambling sequence initialization from frozen bits of an uncoded downlink control information vector." This invention involves a device that receives a downlink signal from a base station and constructs a frozen decode matrix for decoding frozen bits from the data of the downlink signal. The device also constructs a linear feedback shift register (LFSR) generator matrix for a component of scrambling sequence seed bits. By multiplying the frozen decode matrix and the LFSR generator matrix, the device generates a mapping matrix that initializes a scrambler to the frozen bits. The final matrix is utilized to recover the scrambling sequence seed bits used to initialize the component, allowing for actions based on these bits.

Another patent by Hashemi is also focused on recovering scrambling sequence initialization from frozen bits of an uncoded downlink control information vector. In this case, the device determines an input-output relation of polar encoding based on a vector of the downlink signal. It performs an interleaving operation with a matrix and the input-output relation to obtain an interleaved vector. The device utilizes rate matching with the interleaved vector to determine a scrambling sequence of the downlink signal and employs a reverse sequence generator to determine a scrambling sequence initialization vector for the scrambling sequence.

Career Highlights

Ata Sattarzadeh Hashemi is currently employed at Viavi Solutions Inc., where he continues to innovate in the telecommunications sector. His work has been instrumental in advancing technologies that enhance data transmission and reception.

Collaborations

He has collaborated with notable coworkers such as Onur Dizdar and Matthew David Brown, contributing to a dynamic and innovative work environment.

Conclusion

Ata Sattarzadeh Hashemi's contributions to the field of telecommunications through his patents demonstrate his expertise and commitment to innovation. His work continues to influence advancements in data transmission technologies.