4G LTE ushered in an opportunity, several major challenges will raise the threshold

On December 4, 2013, this is a day that can record the history of China's industrial development. The 4G licenses that have been used for many years have finally been released in the Chinese market. China's 4G LTE development has ushered in a golden age. According to the Chinese government's "Broadband China" strategy and implementation plan, in 2020 China, the total number of 3G/LTE users will reach "1.2 billion", which is almost equal to the total population of Europe and North America. For Chinese mobile/tablet manufacturers, their customer base also includes mature markets in Europe and America that have been deployed for 4G LTE for several years. In 2014, the 4G penetration rate of these markets will reach more than 50%, which is another Chinese manufacturers bring huge opportunities.

However, the LTE market looks beautiful, but it still has a lot of difficulty to eat this big cake. In 2014, for chip companies and mobile phone companies, the common entanglement lies in multi-core, 64-bit, 4G LTE multi-mode These technical difficulties are frequent.

Does 4G LTE mobile phone choose 64-bit or multi-core?

First of all, for the 2014 4G LTE high-end mobile phone platform, whether to choose a multi-core strategy or a 64-bit strategy is a problem that all mobile phone manufacturers and chip manufacturers are entangled. In 2013, Apple unexpectedly adopted a 64-bit CPU in iphone5s. "Apple pushed the global 64-bit CPU process forward for half a year." This is the comment of ARM executives at a press conference. Apple’s move has disrupted the road map of all mobile phone main chip platform vendors, including Qualcomm, a leading company in the mobile processor market, and of course disrupted MTK, HiSilicon, Intel and Broadcom. And the plans of companies such as Marvell, China's local mobile phone chip manufacturers Spreadtrum, Lianxin, etc., although not yet considered the top-end platform, but also began to see whether the next generation is to choose multi-core A15 or 64-bit. Although Apple released the iPhone 5s, everyone expressed doubts about the significance of 64-bit in the mobile phone, but then, they are quietly changing their own road map, such as Qualcomm and Broadcom recently indicated that for 64-bit CPU The plan is over, and MTK also said that they will consider 64-bit CPU. "We think that multi-core and 64-bit CPU are not contradictory." This is the opinion expressed by Xie Qingjiang, general manager of MTK, to this reporter.

In fact, the adoption process of 64-bit CPU in 2014 will be severely subject to semiconductor technology. For 64-bit CPUs, the performance of the A57 core is greatly enhanced by the large core. The performance of the small core A53 core is equivalent to that of the 32-bit A12. However, for the A57, the current mainstream process 28nm power consumption is very large, must use 14nm, has an advantage, with 20nm free strong. Therefore, the process will seriously affect the 64-bit CPU process of each manufacturer in 2014. Perhaps the earliest A57 is Samsung, from June to July 2014, 2A57+2A53, 14nm, which is the best expectation.

Other manufacturers such as Qualcomm, NV and MTK, due to the need to use TSMC's process, if you want to get the big core A57 CPU, the earliest will be by the end of 2014, using 20nm mass production. "The A7 used in the Apple iPhone 5s is 28nm, but it is optimized for 64-bit CPU power, because they are the ARM architecture license. So, although it uses Samsung's 28nm process, the power consumption is OK." Chen Feng, vice president of Ruixin Micro, explained. However, many manufacturers will launch multi-core A53 in the first half of 2014, attracting customers with 64-bit gimmicks, including Qualcomm, MTK and local Rockchip. Qualcomm has announced the 64-bit Snapdragon 410. Although it is not said to be a big core or a small core, it is known that it is a small-core A53 with a main frequency of 1.2 to 1.4 GHz.

Therefore, as the main chip manufacturers of mobile phones are changing their multi-core/64-bit plans, this will also bring great challenges to mobile phone manufacturers in 2014 when they choose the flagship platform. In the first half of 2014, what was chosen as the flagship platform will not be dropped in the second half of the year? Choosing a 32-bit multi-core A15 or A12 is likely to be a transitional product, but the 64-bit A53 is not powerful enough. difficult!

4G LTE multi-mode multi-frequency challenge

4G LTE is one of the fastest growing technologies in the history of mobile communications. From the first commercial deployment, it has reached 100 million connections in just three and a half years. According to GSA data, there are currently more than 144 million LTE/3G multimode connections in the world, and 222 LTE commercial networks are deployed in 83 countries. Among them, 11 of the 23 LTE TDD commercial networks in the world are launched by operators that have deployed LTE FDD networks, and more than 100 terminals support both LTE FDD and TDD. For the Chinese market, although China Mobile no longer insists on supporting 5 analog and 10 frequency, China Unicom and China Telecom have obtained TD LTE and potential FDD LTE licenses. Consumer demand for multimode multi-frequency is still strong, while China Mobile Many high-end users are also a group of customers who need to roam around the world, and the requirements for multi-mode are also high.

Therefore, compared to 3G mobile phones, designing a 4G mobile phone (at least four-mode) that roams in China and the world is a big challenge for chip manufacturers and mobile phone companies. Here, Qualcomm's first-mover advantage very obvious.

"The world's largest operators have jointly launched 222 LTE networks and more than 1,000 LTE terminal devices with Qualcomm, Huawei, ZTE, Ericsson, Sony, Samsung, etc., and here are mainly Qualcomm chips." Qualcomm Wang Xiang, senior vice president and president of Greater China, said. He pointed out that the most noteworthy thing is that in the 2G era a few years ago, it was difficult for domestic mobile phone companies to make achievements in the high-end field; 3G/LTE was "greatly different", currently ZTE, Lenovo, Gionee, Huawei, Nubia , Hisense, Tianyu, etc. have released a number of LTE mobile phones and data cards in China and overseas. For example, Lenovo VIBE Z, Gionee ELIFE E7, Nubia Z5S LTE, Tianyu Hornet 4G, etc., which have received extensive attention recently, use Opteron processors. Support LTE/3G multimode connection. In October 2013, Japanese operator Softbank released ZTE's 203Z and eAccess GL09P mobile routers, supporting LTE carrier aggregation/WCDMA multimode, with a maximum download speed of 110Mbps, making it the world's first LTE-based third-generation LTE modem MDM9x25. Commercial terminal.

Wang Xiang said that its third-generation LTE chipset has been commercialized on a large scale and is the first company to introduce an LTE-A chipset that supports carrier aggregation. At present, all LTE chipsets that Qualcomm is shipping support LTE FDD/TDD and 3G multimode, which can meet the 4G LTE deployment requirements of China's three major operators on one platform. More noteworthy is that QRD (Qualcomm Reference Design Platform) is also the industry's first reference design project to support 4G LTE, supporting LTE/3G multi-mode, various positioning systems including Beidou.

The design difficulties of multi-mode and multi-frequency are especially on the RF side. Here, Qualcomm's QFE1100 envelope tracking technology used in the Nexus 5 is worthy of attention. This technology will be adopted in the RF360 front-end solution, which can help manufacturers develop a single design that supports the global 4G LTE network. "It can reduce heat up to 30%1 and power consumption up to 20%2, making the terminal thinner and longer battery life." Wang Xiang explained.

In addition to Qualcomm, Marvell and Broadcom have launched 4G LTE SoC platform solutions, but few successful commercial cases. At present, MTK in the 3G market is likely to encounter bottlenecks in the 4G market. They will estimate that the first 4G LTE MODEM chip will be mass-produced by mid-2014. It is reported that this MODEM was handed over to major customers at the end of 2013. Start designing. It is expected that in 2014, MTK's 4G LTE solution will be mainly based on the current WCDMA platform and TD-SCDMA platform, and this MODEM (MT6290) will be implemented.

In terms of Spreadtrum, Wang Chengwei, Senior Marketing Director of Spreadtrum Communications, said that according to the current licensing situation, China's 4G market in 2014 will be dominated by China Mobile's 4G market. In the past few years, Spreadtrum has achieved a dominant position in the terminal chip through the close cooperation with China Mobile and timely launching products that meet the needs of China Mobile. China Mobile's 4G, especially in the early days of 4G network imperfect network construction, will still be inseparable from the support of TDSCDMA technology. Spreadtrum's advantages in TDSCDMA technology will be further extended in the 4G era. For the 2014 market, Spreadtrum has prepared LTE Modem for the high-end market and a baseband AP single-chip solution for the low-end and mid-end markets, providing customers with sufficient options for solution.

Liu Guangjun, vice president of Datang Lianxin, said, "We believe that LTE smartphones and data terminals will have a large amount in 2014. In terms of product demand, China Mobile has also recently put forward new requirements, no longer asking for five models. Frequency, three-mode products will become the focus of development, which coincides with the direction of Lianxin's next product development." He added, "In terms of data terminals, we will provide Turnkey's solution to help manufacturers quickly launch Mifi, CPE. At the same time, the multi-mode LTE SoC chip will be aimed at the low-end smartphone market. "On the other hand, he believes that the 2014 private network will be another opportunity for 4G," meanwhile, the core will and Design companies and other customers, together with some 4G terminals applied in the industry, used in video surveillance, mobile medical, Internet of Things and other fields." He said.

Liu Guangjun admits that when it comes to the challenge of Lianxin in 2014, the five-mode LTE terminal solution products are the most important business on time, and the mature and stable multi-mode protocol stack is the top priority. “At the same time, the industry we are engaged in determines the need to continuously greet and create technological upgrades. Compared with the technical challenges, we may find a balance between technology and market, and clearly define our position to be more concerned by enterprises.” He also added.

2014 overseas emerging market 3G outbreak

Of course, in addition to the opportunity of LTE in 2014, the 3G market in overseas emerging markets will also face an outbreak period, similar to China's 2011 smartphone market, which brings new opportunities for Chinese mobile phone manufacturers. In fact, in 2013, including Manufacturers such as Jinli and Tianzhu have begun to ship 3G smartphones in overseas emerging markets. The 3G smartphone market in Russia, Brazil, Indonesia, Nigeria, India and other populous countries is worthwhile in 2014. The figure is the current smart machine penetration rate in these countries.

"Undoubtedly, WCDMA will become the highlight of Spreadtrum's 14-year overseas market. In 13 years, Spreadtrum's WCDMA products entered the market smoothly. The SC7701 products used in the functional machine market were first mass-produced in Samsung and used in the smart machine market. The quad-core chip SC8735 was also mass-produced at HTC in November. Together with the single-core chip for the entry-level smartphone market, Spreadtrum's 14-year overseas market is not a product, but the entire WCDMA product line." Wang Chengwei said. When talking about the impact of Tsinghua Unisplendour on the future strategy and product line of Spreadtrum, he explained that the acquisition will not have a direct impact on the product line of Spreadtrum, but we have reduced a lot of restrictions, we will be more A positive, more aggressive market strategy to face competition in 2014.

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