“Today, we’re bringing 5g to the iPhone, which is an epoch-making exciting moment for all of us.” Apple CEO Tim Cook said at yesterday’s apple launch. After the release of the iPhone 12, many netizens thought it was not too innovative. In fact, the A14 bionic chip and 5g support are the biggest highlights of the iPhone 12. < p > < p > the A14 bionic chip was unveiled with the iPad at its September launch, and this time Apple calls it another milestone in the history of the iPhone. A14 is the world’s first mobile phone chip with 5nm process. It integrates 11.8 billion transistors, adopts the new 6-core CPU and Apple’s latest 4-core GPU, which improves the operation speed and image processing speed by 50%. Compared with competitors’ smartphones, the iPhone 12 has the fastest CPU and GPU speeds. In June 2008, Apple launched its first 3G mobile phone, the iPhone 3G. However, in June 2007, there were 200 million 3G users in the world. According to GSA data, 190 3G networks covered 40 countries and regions in December 2007. < p > < p > in October 2020, Apple’s first 5g mobile phone was launched, and its competitors, Huawei, Samsung, oppovivo, etc., have been competing to sell 5g mobile phones in 2019. < / P > < p > from this point of view, apple is not the first “crab eater” whether it is from 3G to 4G or from 4G to 5g, and it is about one year later than other manufacturers on average. < / P > < p > late has its own advantage. Consumers who dare to try first try the water. The disadvantages of the first batch of 5g mobile phones on the market are gradually revealed, such as short service life, unstable signal, frequency band being “castrated” and not light enough Later, apple, aiming at the existing 5g mobile phone problem, broke down one by one, showing its advantages. < p > < p > Arun Mathias, vice president of Apple’s wireless technology and ecosystem division, said at the press conference that Apple started with hardware design and customized 5g antenna and radio components to accurately determine how to perform the best operation in the whole system, and to cover the largest 5g frequency band while saving space. < / P > < p > worldwide, 5g is deployed in sub-6ghz and millimeter wave, and the United States has more millimeter wave deployment, while other countries mainly deploy in the low and medium frequency band, that is, in the sub-6ghz band. As early as the end of 2018, the Ministry of industry and information technology issued licenses for the use of low and medium band test frequencies of 5g system to three major operators. According to the frequency band number, the 5g frequency band number of China Telecom and China Unicom is N78, and the frequency band number obtained by China mobile is n41 and N79. In addition, China Radio and television also obtains the frequency band number of N79. < / P > < p > this means that a 5g mobile phone of all Netcom needs to support n41, N78 and N79 at the same time. There are some 5g mobile phones on the market, which do not support the N79. < p > < p > according to Apple’s official website, in addition to the n41, N78 and N79 mentioned above, the 5g NR bands supported by iPhone 12 series mobile phones also include 14 other bands, far exceeding the mainstream Android phones on the market. However, it is worth noting that, considering that the domestic millimeter wave deployment is not mature, only the US version of the iPhone 12 supports millimeter wave. < / P > < p > in view of the high power consumption of 5g, apple officially called it the iPhone 12 series mobile phone, creating a highly integrated and complete system. For example, by optimizing the IOS architecture, all kinds of apps can benefit from 5g without using more power. The new smart data mode can automatically switch to LTE mode when iPhone does not need 5g to save power. However, some analysts believe that the current 5g network deployment is not mature enough, and the iPhone 12 is in an awkward situation, just like a Ferrari running on a village road. < / P > < p > on the one hand, according to the test of 5g networks in 125 regions in the United States conducted by the rootmetrics Department of IHS Markit, 5g speed is only slightly faster than 4G in medium and low frequency band LTE is still several years away from the speed promised by mobile phone operators. In high-frequency millimeter wave, although 5g network speed is much faster, the signal will deteriorate rapidly; on the other hand, applications that use 5g to provide new functions have not yet been developed. For example, in 4G era, mobile applications promote the development of 4G. < / P > < p > as for whether Apple’s first 5g mobile phone is really the strongest 5g mobile phone, and where it will eventually go, it needs to be evaluated in the actual experience of end users. < / P > < p > in addition to waiting for 5g network deployment to become more mature, another important reason why Apple launched its first 5g mobile phone in October this year is that it settled with Qualcomm and used the 5g baseband chip. < p > < p > we often talk about mobile phone chips, including application processor (AP) responsible for process and baseband (BP) responsible for processing communication. Although Apple’s application processor A-Series chips have strong performance, they always use baseband chips from other manufacturers. < p > < p > when Apple first made mobile phones, that is, from iPhone 2G, it used Infineon baseband. However, Infineon baseband chips were not advanced at that time. When Nokia and Motorola began to support 3G four or five years ago, Infineon still did not support 3G. Its market positioning was only a low-cost alternative source of goods in the mainstream market. < p > < p > jobs chose Infineon because of its high baseband chip integration. On the other hand, apple just started to make mobile phones with small boards, which other manufacturers did not like. < / P > < p > the actual effect can be imagined. With Infineon’s baseband chip, the signal of the first three generations of iPhones is weak. In the fourth generation, in order to improve the signal, apple directly wrapped a layer of antenna outside the mobile phone, so that the later “antenna gate” event occurred. < p > < p > in 2010, Intel acquired Infineon’s wireless division for us $1.4 billion. Jobs was very happy when he commented on the event, but then ended the cooperation with Infineon and began to use the baseband chip of Qualcomm from the iPhone 4S. < / P > < p > it should be noted that before Apple launched the iPhone, Intel had its own wireless device chip division, but sold it to Marvell in 2006. Later, in the era of mobile Internet, Intel purchased Infineon’s wireless division to make up for its mistakes. Then, in September 2015, Intel purchased the CDMA2000 patent of Verizon Telecom with $100 million to solve the CDMA patent problem. < p > < p > in 2017, Intel launched the first Gigabit LTE baseband chip XMM 7560, which integrates CDMA and realizes the whole network communication. It is reported that the baseband chip has the same parameters as the high pass snapdragon x16 LTE. < / P > < p > shortly after Apple “enjoyed” the exclusive supply of baseband chips from Qualcomm, on the one hand, it felt that the patent fee of Qualcomm was too expensive, on the other hand, it did not want to completely rely on Qualcomm on baseband chips. In 2017, the company began to mix baseband chips from Qualcomm and Intel on the iPhone 7. At that time, foreign media reported that in order to keep the performance of the two versions consistent, apple deliberately limited the network speed of the built-in high-pass baseband version of the iPhone 7. < p > < p > Qualcomm is a well deserved overlord in the field of mobile communications. It not only occupies the high-end chip market in the field of smart phones, but also obtains high profits through huge patent licensing. However, its business model relying on patent authorization has always been questioned. Many countries and regions around the world have launched large-scale anti-monopoly investigations and lawsuits, including apple. < p > < p > in January 2017, three days after the U.S. Trade Commission (FTC) announced that it would launch an antitrust investigation against Qualcomm, apple filed a patent lawsuit against Qualcomm in the Federal District Court for the Southern District of California, USA, suing Qualcomm for “monopolizing the wireless chip market” and filed a claim of nearly $1 billion. In May of the same year, Qualcomm also launched a series of counterattack lawsuits against apple. < / P > < p > after a year of litigation, the two sides reached an agreement that in return for Apple’s use of only Qualcomm chips between 2011 and 2016, Qualcomm will pay apple a fee. At the same time, the European Commission objected to the company’s alleged monopoly and was fined 997 million euros (about $1.2 billion). However, the patent war between the two sides has not ended. In 2018, iPhone models equipped with Qualcomm baseband chips were banned in China due to patent issues such as window switching, which also led to the escalation of conflicts between the two sides. Later, the iPhone XS, XS max, XR and the baseband chips of iPhone 11 series had no choice but to carry Intel baseband. However, the performance of Intel baseband chip is not as good as that of Qualcomm in terms of parameters and user experience. When the LTE / Wi Fi signal of iPhone XS / XS Max has problems, some users blame Intel baseband for the problem. < p > < p > < p > in terms of patents, Intel of Qualcomm has invested a lot in baseband field, and has been researching 5g baseband chips for Apple’s big customer. < / P > < p > in November 2018, fastcompany quoted insiders as saying that Intel had specially set up a team of thousands of people to develop 5g baseband for the new iPhone. However, the larger amount of data put pressure on the baseband chip and RF antenna, resulting in the failure of the prototype 5g iPhone to meet the requirements of heat and endurance. Apple can only further run in with Intel. < p > < p > finally, Intel completed the development of the 5g chip XMM 8160 in 2019, but Intel said at that time that the chip would not be shipped until 2020. According to the release plan of Apple mobile phone, the first 5g mobile phone will be released in September 2020. < / P > < p > the final result is that apple and Qualcomm reached a settlement in the federal court of San Diego, California on April 17, 2019, and apple paid the patent fee to Qualcomm again. On the same day, Intel announced its withdrawal from 5g mobile modem business. This means that Apple’s first 5g mobile phone, iPhone 12, is the first mobile phone to use Qualcomm baseband after reconciling with Qualcomm. However, there is another problem. Apple, which has always been reluctant to be “monopolized” by a company for a long time, will go to the road of self-research when facing the possibility that there is only one choice for the baseband chip from Qualcomm? < / P > < p > in terms of GPU, while cooperating with imagination smoothly, we have started to lay out our own GPU self-study plan since 2013, and have gathered relevant talents in the industry to form a team, and even put their hands on imagination. In 2017, Apple announced that it would give up all technologies of imagination and develop GPU in the next two years. The final result is obvious to all. Now, the A14 bionic chip integrated with the latest self-developed GPU has ranked first in the field of smart phones in terms of image processing speed. < / P > < p > in July this year, apple officially announced that it will make MAC computers from Intel X86 platform to self-developed ARM processor migration plan within two years. The first MAC equipped with Apple’s self-developed processor may be released in November this year. These actions of Apple seem to indicate that Apple will launch its own baseband chip one day in the future. In addition, in July 2019, apple purchased most of Intel’s smart phone modem business for $1 billion. Cook said in evaluating the acquisition that the acquisition would allow Apple’s wireless technology patent portfolio to exceed 17000. Apple will own and control the core technology in the long-term strategy, all of which reveal Apple’s ambition to develop baseband. < p > < p > some analysts have pointed out that if Apple develops its own baseband chip, it will benefit from many aspects, with the greatest impact