Lenovo 5g standard voting fermented Liu Chuanzhifa joint letter to defend Lenovo reputation

[Introduction]: Lenovo's 5g standard voting event continued to ferment. Although the parties, Lenovo Huawei issued a statement to clarify the matter, but some people still bite Lenovo. This time, Liu Chuanzhi was angry and sent a joint letter to defend Lenovo's reputation. .

Liu Chuanzhi, chairman of Legend Holdings and founder of Lenovo Group, and Yang Yuanqing, chairman and CEO of Lenovo Group, and Zhu Linan, president of Legend Holdings, issued a joint letter in response to the recent "5G standard voting" incident. In the letter, Liu Chuanzhi said: "I specifically communicated with Mr. Ren Zhengfei of Huawei. Ren always told me that Lenovo did not have any problems in the voting process of the 5G standard and thanked Lenovo for its support to Huawei. We It is agreed that Chinese companies should be united and cannot be provoked by outsiders."

He also revisited Lenovo's voting details. He pointed out that when the 3GPP eMBB program's first round (RAN1#86bis) voted, Lenovo Group chose LDPC technology based on its pre-technology and patent reserves. In the second round (RAN1#87) voting, we comprehensively considered the country's overall industrial cooperation, innovation and development, and resolutely chose the Polar code solution that Lenovo did not have much technology accumulated before.

Liu Chuanzhi said that Lenovo Group representatives follow two principles: one is basic and must protect the interests of their own enterprises; there is a higher principle that should focus on the overall situation, the overall situation is the overall interests of the country and industry development. Liu Chuanzhi believes that in the whole process, Lenovo's voting principle is no problem, and there is no problem in its implementation.

In fact, Lenovo's position on the 3GPP vote is far from simple. This is a competition for technical strength. It is not a problem for Chinese companies. The media also specifically sorted out the matter. The following is a detailed review of the matter.

1. The passage of communication standards is a confrontation of strength, but also a process of compromise, far more complicated than the imagination of netizens.

Regarding the voting of channel coding, some people posted several minutes of the meeting, accusing Lenovo of not voting for long codes. A group of simple netizens thought that Lenovo did not stand on Huawei's side, and even Lenovo's vote led to Huawei's failure. In fact, these people do not understand the complexity of communication standards at all.

China has made great progress in 3G and 4G communication standards, and has achieved a good position and has its own voice, but we must know that China has not yet reached the point of being completely independent. The 3G standard TD-SCDMA has become a major international standard, and US support has played a big role. Of course, US support is also an exchange of interests. It is in exchange for China's support for cdma2000. 4G's TD-LTE is also dominated by China, which has also received support from Europe. The purpose of European support is to exchange China in this system and jointly squeeze the United States out of the 4G standard. The struggle of these various forces, mutual support, and mutual compromise are a normal state. A lot of things can't be simplified by some netizens to judge and label the so-called patriotic and unpatriotic.

Although China has made breakthroughs in the 3G and 4G standards, we have never made a breakthrough in coding. It is far from being as simple as everyone thinks. If we want to use Huawei's Polar to occupy all fields. , may be fully attacked, and finally nothing, so the data, control channels are all using Polar is not a strategic goal from the beginning.

In the channel standard coding, the three camps are competing. One is the Turbo code represented by France. This code is the code used by 3G and 4G. The technical evaluation of it is also a matter of opinion, and some people think that it has a long history, simple, easy to operate, is a good code. But it has to face the two camps of the United States and China, and finally has to go out.

The communication channel coding is divided into two parts, one is a data channel and the other is a control channel coding. The data channel coding uses a long code and a short code, and the control channel coding uses a short code.

After Turbo was out, the two main camps were the ones. One camp was LDPC represented by Qualcomm, and the Polar code represented by China Huawei. In this matchup, the Chinese camp is not expected to win. Regardless of the technical strength, the countries and enterprises that have received support, China and the United States are not facing each other. If they directly encounter the results, they may get it for a while.

Therefore, China’s strategy is to use Polar on the control channel. This is the bottom line of China’s strength guarantee. To achieve this goal, on the one hand, in the final vote, Chinese companies must act in unison. On the other hand, we must also pass Compromise and exchange, and support other countries and enterprises in other aspects to obtain a substantial support in the final vote of Polar code to ensure clearance.

2. The long code of the data channel has basically taken abandonment attitude.

The goal of using the Polar code for the control channel is determined. For the long code discussion of the data channel, the Chinese camp basically adopts abandonment attitude. For the data conference, only Huawei supports the data channel whether it is long code or code. Polar, a considerable number of enterprises support LDPC for both long and short codes, and quite a part of the Chinese camp is another solution, that is, long code uses LDPC and short code uses Polar. This kind of play is not to make a comprehensive confrontation between LDPC and Polar. Because if the data and control channels are completely directly confronted, it is likely that the other party will unite and eventually lead us to nothing.

There have been many proposals in the Lisbon conference. There are many cases in the Chinese camp. One is to use Polar in full. One is to use LDPC for long codes and Polar for short codes.

This meeting did not blame the final result, but because the attitude towards long code is very concentrated, in addition to Huawei's request for Polar, most companies support long code adoption of LDPC, which includes many Chinese companies.

Therefore, the meeting concluded that the long code uses LDPC, and the short code and control channel are decided at the next meeting. At this meeting, Lenovo and its Motorola jointly signed the support for long code adoption of LDPC, which is consistent with the attitude of most Chinese companies, and did not violate the principles and bottom line of the Chinese camp.

Some people accuse the long code of not giving it to Huawei, because at this meeting, the Chinese camp does not pursue this result at all. If it becomes a confrontation between the two camps at this time, it is likely to be against us.

3. Chinese companies jointly put their own coding schemes into international standards

A meeting held in the United States one month later, this meeting solved two problems, one is the data channel short code, and the other is what code is used for the control channel.

It is clear to the Chinese camp that the power control code is Polar. In order to achieve this goal, compromises and exchange of interests are required. The LDPC is not attacked in full, in exchange for most enterprises supporting the control channel using Polar code.

Therefore, for the short code of the data channel, China did not stand up strongly against it, Lenovo and other abstentions, and finally adopted LDPC on the data channel. He also talked with a technical expert. He also believed that it is reasonable to use a coding method for the data channel. If two codes are used, the development and stability of the product are more difficult. This is not a good choice. The Chinese camp proposed this. The plan is to spoil the situation.

In the final control channel voting, most companies supported Polar, China-led Polar successfully entered. On the one hand, Chinese companies have united and voted according to our strategy. At the same time, they have exchanged support for non-Chinese camps through compromises and exchange of interests.

According to the subsequent voting situation, it is irrelevant that Lenovo voted to support Polar. An expert asked me, who said this is irrelevant, who dares to say what the final result is? Before voting, all kinds of compromises, negotiations, exchange of interests, and the final result to go backwards, saying that Lenovo's ticket is not important, this is ignorance.

4. Huawei thanks Lenovo for its support and proves that Lenovo will always be a member of the Chinese camp.

For this debate, Huawei China specifically issued Weibo to express its attitude, thanked Lenovo for its support to Polar, and also explained the problem. On the stage of international standards, the Chinese camp enterprises are united and act together. The way and behavior of the whole operation is to divide the work for the big pattern, different performances, why do this, not a few outsiders, or a doctor of a university, check the online information to understand the internal situation, you can Draw conclusions.

This time, the online information was turned out and evolved into a siege of Lenovo. In fact, ZTE was continuation of the US sanctions. ZTE was sanctioned. Some people in China are not angry with the US government to break the rules. Instead, they are grouped up to ZTE. Labels that do not speak integrity and violate the contract. Searching for information on the Internet, finding evidence, discrediting ZTE is patriotic on the one hand, and attacking Huawei on the other. This rumor has been a long time ago, when ZTE was opposed to Huawei in international standards. Later, it was found that these materials could not prove that ZTE opposed Huawei. In Lenovo's long code association, Lenovo turned its finger at Lenovo.

Now netizens are besieging Lenovo, even rising to the height of patriotism. It is really unnecessary. Lenovo is not so patriotic, and this group of sieges is not as patriotic as it is supposed to be. It is purely black and black. It is no wonder that Liu Chuanzhi is angry.

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