1, 100 km! Scientists in China set the farthest record of quantum direct communication.
Recently, Chinese scientists have designed a new quantum direct communication system with mixed coding of phase quantum state and time stamp quantum state, and successfully realized the quantum direct communication of 100 km. 100 km, which doesn't sound far, is the longest quantum direct communication distance in the world (in the previously published results, the longest quantum direct communication distance is 18 km), which is helpful to realize inter-city quantum direct communication without relay. Quantum direct communication uses quantum state as the carrier to encode and transmit information, which changes the dual-channel structure of traditional secure communication and develops reliable communication under noise channel into reliable and secure communication under noise and eavesdropping channel, which can not only perceive eavesdropping, but also prevent eavesdropping.
Intelligent wearable device
2. Global wearable device shipment ranking: Apple ranked first, Huawei ranked third.
According to the latest data from Konas, in 20021year, the global shipment of wearable bracelets reached 65438+93 million units, up 4.3% year-on-year. Among them, Apple shipped more than 39 million units, ranking first in the world, with a growth rate of 1 1.8%. Xiaomi shipped 29 million units, ranking second, down 23% year-on-year. Huawei ranked third, with shipments of 6,543,809 units, down 40% year-on-year. Fitbit and Samsung ranked fourth and fifth respectively.
Chip/semiconductor
3. The mass production verification is successful! The first domestic chip compatible with UCIe global standard was born.
In March, Intel, TSMC, Samsung, Sunmoon, AMD, ARM, Qualcomm, Google, Microsoft, Meta (Facebook) and other industry giants jointly launched a new universal chip interconnection standard-UCLE. Almost at the same time, Innosilicon, a chip manufacturer in China, announced that it was the first to launch an IP solution "InnolinkChiplet" with physical layer compatible with UCIe international standards, which was the first cross-process and cross-package small chip connection solution in China. According to the latest official news of core technology, the scheme has been successfully mass-produced under advanced technology! Core Power Technology said that it has accumulated a lot of customer application experience in the field of small chip technology, and has close technical exchanges and cooperative exploration with leading enterprises such as TSMC, Intel, Samsung and Micron. It started the research and development of Innolink two years ago, took the lead in defining the technical route of InnolinkB/C based on DDR, and made InnolinkA/B/C technology public to the industry for the first time in 2020.
4. SA: In 2021year, Qualcomm dominated the global baseband chip market, and iPhone 13 promoted its sales. Huawei Hisilicon was hit hard, and the share of Samsung LSI declined.
The latest research report released by Strategy Analytics mobile phone component technology (HCT), Q4 baseband market share tracking in 20021year: Qualcomm and MediaTek * * * seized 95% of the 5G market share, pointing out that the global mobile phone baseband processor market revenue increased by 19.5% in 20021year, reaching 3/kloc-0. Qualcomm, MediaTek, Samsung LSI, Ziguang Zhanrui and Intel occupy the top five market shares of 202 1 baseband chips. StrategyAnalytics said: "In 20021year, Qualcomm shipped more than 800 million baseband chips, ranking first in terms of both shipments and revenue. IPhone 13 is equipped with X60 baseband chip, which has promoted the expansion of sales in Qualcomm. In addition, the company established its leading position in the high-end Android device market through Snapdragon 8 and 7 series chips. With its diversified baseband chip portfolio, Qualcomm is also eye-catching in non-mobile phone fields such as automobiles, Internet of Things, cellular tablets, fixed-line wireless access and other applications. "
artificial intelligence
5. The AI summary signed by100 people was accused of plagiarism, and Zhiyuan Research Institute released the preliminary investigation results and apologized.
Previously, on April 8, this paper involving dozens of domestic AI cattle was accused of serious plagiarism. NicholasCarlini publicly wrote an article accusing Arxiv, a pre-printed paper website, of serious plagiarism in a paper "ARoadmap for Big Model" published on March 26th this year. Zhiyuan Research Institute issued a letter of apology on the summary report of ARoadmap for Big Model in official website on April 3rd, 65438, and admitted that five articles in the summary report were plagiarized. As the organizer of the report, it is responsible for failing to strictly review all the contents. Zhiyuan Research Institute said that it would immediately delete the corresponding content from the report, submit it to arXiv for update, and invite third-party experts to independently review the report, and hold the relevant responsible persons accountable according to the official investigation results. Zhiyuan Research Institute also promised to further improve the system management, establish a stricter audit mechanism and clearer disciplinary measures.
Internet of Vehicles
6.LG Electronics ranks first in the global TCU market.
According to BusinessKorea, LG Electronics has become the largest player in the global TCU market. TCU is a key component to realize communication between vehicles. According to the data of CounterpointResearch, in 20021year, the share of LG Electronics in the TCU market was 35.2%, the market share increased by 1.7 percentage points compared with the previous year, and the shipment volume increased by 19% in the same period. Continental Group, which performed well in Europe, ranked second, with a share of 25.3%, down 2. 1 percentage point from the previous year. Harman of Samsung Electronics ranked third with 12.7%. CounterpointResearch said: "Harman mainly focuses on the luxury car market and is already providing 5G TCU for high-end brands." Denso, a subsidiary of Panasonic and Toyota Group, ranked fourth and fifth with 4% and 3.8% respectively. The global TCU market is expected to grow at an average annual growth rate of 65,438+05% between 2020 and 2025, and will reach 7 billion US dollars by 2025.
connect
7, the highest speed is 1. 1.5 trillion! Broadcom releases Wi-Fi7 routing processor: supports eight network ports.
On April 13, Broadcom released a complete set of Wi-Fi7 wireless solutions, including six different products, claiming to be the first commercial Wi-Fi7 ecosystem in the world. First of all, there are four Wi-FiAP products, among which BCM6726 and BCM67263 are for the home market and support 160MHz and 320MHz channels respectively. BCM43720 and BCM43740 are geared to the enterprise market, with the highest rates of 2.88Gbps and 1 1.5Gbps respectively. "BCM49 16" is a comprehensive network processor. On this basis, Broadcom has also created a reference design for Wi-Fi7. "BCM4398" integrates Wi-Fi7 and Bluetooth 5, and is suitable for mobile devices such as smart phones. Among them, Wi-Fi7 supports dual streams, 320MHz bandwidth and 6.50GbpsPHY physical layer rate. It also has very low delay characteristics, which can be lower than 1 ms in 6GHz band.
8. A total of 5 1 10,000 5G base stations have been built in Shenzhen, with more than 9 million 5G users.
According to the Shenzhen Special Zone Daily, Shenzhen is the first city in China with high density of 5G base stations, and it is also the first city in China with full coverage of 5G independent networking. The total number of necessary patents for the 5G standard is leading the world, and the scale of the 5G industry and the shipment of 5G base stations and terminals rank first in the world. At present, there are 5 1 10,000 5G base stations in Shenzhen, with over 9 million 5G users and 30.78% of 5G traffic. The newly released Action Plan for Promoting the Construction of New Information Infrastructure in Shenzhen (2022-2025) proposes that by the end of 2025, Shenzhen will basically build a new information infrastructure supply system that is ubiquitous, advanced, high-speed intelligent, integrated with heaven and earth, green, low-carbon, safe and efficient, with 30 5G base stations per 10,000 people and more than 80% of 5G users.
Enterprise dynamics
9. Yu Rou Science and Technology was in financial crisis, and Liu Shuwei, an independent director, voiced again: I suggest that the government help introduce strategic investors.
Liu Shuwei, director of the China Enterprise Research Center of the Central University of Finance and Economics, suggested today that governments at all levels should actively help Yu Rou Science and Technology solve the shortage of funds and help Yu Rou Science and Technology introduce strategic investors. Liu Shuwei revealed that in the fourth quarter of 20021year, the Shenzhen municipal government hired a number of professional organizations to conduct on-site evaluation of the Yu Rou science and technology fully flexible screen projection production line, and the yield of projection was 8 1.6%. Since the flexible screen production line was put into production in 20 18, and some R&D achievements with innovative technologies were only completed in the last year or two, Yu Rou is short of funds for science and technology, and has not had time to open the market and create sufficient operating cash flow. It is worth noting that Liu Shuwei, who once again spoke for Yu Rou Science and Technology, has another identity. Since June 30th, 2020, he has been an independent director of Yurou Technology, optimistic about the development of science and technology in Yu Rou.