www.mobicomcorp.com讯 北京时间8月3日消息（蒋均牧）7月26日，华为在深圳总部举行颁奖典礼，向5G极化码（Polar码）的发现者土耳其毕尔肯大学尔达尔·阿里坎（Erdal Arikan）教授颁发特别奖项。百余名标准与基础研究领域的华为科学家和工程师也获得了表彰。
众所周知，3GPP于2018年6月14日11:18正式冻结了5G New Radio的独立（组网）规范。这标志着5G Release 15标准的正式发布。非独立（组网）的NR规格于去年12月发布。目前，所有功能标准化工作的第一阶段已经完成。去年12月，极化码被确认为5G标准的基本要素。
在1991年的一次工程实验中，法国教授克劳德·贝鲁（Claude Berrou）发现了turbo码，这是第一个使该行业接近香农极限的编码方案。这为第二代信道编码技术打开了大门。1999年，3GPP采用turbo码作为3G UMTS系统的信道编码。它也被用于4G LTE系统。
在此，我要感谢李英涛（Li Yingtao）在这次旅程中的出色领导。没有他，我们就不会成为今天的我们。我还要感谢我们的5G项目经理童文（Wen Tong）博士。在过去10年里，他在世界各地旅行了数百万公里来完成工作。由于他的工作，我们实现了5G的目标：实现技术突破并帮助制定统一的全球标准。
Ladies and gentlemen,
It's my great honor to be with you here today.
Please join me as we pay tribute to Professor Arikan and his fellow scientific explorers.
In a way, I think the invitation to today's event was sent to us back on July 24, 2008, the day when we first saw Professor Arikan's paper on polar codes.
As we all know, 3GPP officially froze the standalone specifications for 5G New Radio at 11:18 on June 14, 2018. This marked the official release of 5G Release 15 standards. The non-standalone NR specifications were released in December of last year. At present, the first phase of standardization work for all features has been completed. Polar code was confirmed last December as a basic element of 5G standards.
The world's first 3GPP-compliant, polar code supported 5G system was launched at Mobile World Congress on February 22, 2018. It was jointly developed by Huawei and Vodafone.
About 10 years have passed between the release of Professor Arikan's paper on polar codes and the completion of Release 15 standards. What we see today is just the tip of the iceberg. Below the waterline, there is decades of nonstop research and exploration.
In 1948, Claude Shannon published the paper: A Mathematical Theory of Communication, which became the foundation of information theory. In the paper, he pointed out the maximum rate at which information can be reliably transmitted over a given bandwidth with certain quality. This is known as Shannon's limit. He also proposed that channel coding technology provides the means to reach that limit. As a result, channel coding technology has become the crown jewel of the communications sector, and numerous scientists have worked tirelessly to develop and evolve this technology.
The Viterbi decoding algorithm was invented in 1967. It represents the pinnacle of the first generation of channel coding technology. This algorithm made decoding simpler, and provided a greater performance in the decoding process. It enabled the widespread use of convolutional codes in the information and communications industry. The algorithm was adopted for 2G GSM networks in 1988, and for subsequent 3G networks.
In an engineering experiment in 1991, French professor Claude Berrou discovered the turbo code, which was the first coding scheme to bring the industry close to the Shannon's limit. This opened the door to the second generation of channel coding technology. In 1999, turbo code was adopted by 3GPP as the channel code for 3G UMTS systems. It has also been used in 4G LTE systems.
Building on turbo code principles, the computer science community gained a new understanding of LDPC code, which had been discovered by Professor Robert Gallager – Professor Arikan's mentor – back in 1962. Based on this new understanding, people realized that, with modern computing power, LDPC code could also bring us close to Shannon's limit. In the decades that followed, LDPC code has been widely adopted in storage and broadcast domains.
In 2008, Professor Arikan published his paper on polar codes. Polar codes became the only theoretically proved coding scheme that could reach Shannon's limit. They ushered in the third generation of channel coding technology. Both LDPC and polar code have since been adopted as 5G standards.
As we know, moving from theory to practical application is a process rife with countless engineering hurdles. It took 10 to 20 years for each of the three generations of channel coding technology to evolve from academic discovery to industry standard.
Huawei began researching 5G back in 2009. This was also the year that Professor Arikan published his official paper on polar code in IEEE's Transactions on Information Theory. 5G is the first product that Huawei has developed through a complete end-to-end process, from concept to research, standards, and commercial application. This experience has been invaluable, and there are a lot of lessons we can draw on from our work on 5G over the past decade.
Here, I would like to thank Li Yingtao for his outstanding leadership throughout this journey. Without him, we wouldn't be where we are today. I also want to thank Dr. Wen Tong, our 5G project manager. Over the past 10 years, he has travelled millions of kilometers around the world to get the job done. Thanks to his work, we have achieved our goals for 5G: making technical breakthroughs and helping to set a single global standard.
Again, please allow me to express my sincere gratitude to Professor Arikan, Mr. Ling Yingtao, and Dr. Wen Tong. Also to Professor Arikan's peers in academia, fellow scientists, and all of the Huawei experts who have contributed to 5G.
Moving forward, we are well aware that the birth of 5G standards is only the beginning of a new journey. We will continue to work hard to ensure that 5G technologies – including polar code – creates greater value for society, and sooner. At the same time, we hope that the close collaboration between companies and the academia, like the one between Huawei and Professor Arikan, will continue, and give rise to more scientific marvels that drive the development of the ICT industry and society as a whole.
— Eric Xu, Rotating Chairman, Huawei