InterDigital Inc (IDCC)

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From manufacturing to wisdom made, look 5G 4G technology breakthrough new pulsating sights
Author: Lai Mingfeng

Trend analysis telecommunications patent portfolio 5G 4G LTE Long-Term Evolution Telecommunication trend analysis

Patent analysis


Global mad 4G! Since 2009, the world has 288 telecom service providers are operating LTE network operations. As of the first quarter of this year, the global business revolution 4G LTE countries have 104 (Figure 1 below), this was first in Asia with Japan, Hong Kong, China is the beginning of last year; prepare to enter the LTE operators to switch to country in 2014 There are 11. Global Action Suppliers Association estimates that in 2014 Q1 forecast global LTE subscribers will grow to 240 million. Taiwan also catch the action to provide 4G services in June of this year, by Chunghwa Telecom in June 4 the first to launch 4G LTE mobile services. In fact, from a global perspective, Taiwan launch time be a bit slow!


Figure 1: Countries importing LTE development
In the present situation, there are a lot of discussions are on how LTE will bring hope for the development of Taiwan's cloud services industry. Among these, the most important reason is speed, because to make the entire mobile network data transmission speed of 4G LTE, from the past 4.44Mbps upgrade to 100Mbps realm (shown in figure II). To download a 500MB movie for example, 3G requires 15 minutes to completely pass finished, but 4G as long as 40 seconds. This allows the benefits of using them in the past, "Kaka" or software service simply can not happen, for example, upload or download photos, GPS maps, 3D reality, cloud medical, multiplayer games, audio video and so need to send feature large amounts of data have become possible. 4G LTE can be said that now the key technology of public attention. And focusing on 4G technology is still evolving, global manufacturers are continuing research and development related technologies. Taiwanese manufacturers should seize this continued investment in research and development of energy market trends, a card layout important 4G LTE core technology to occupied an important seat in 5G technology fields.


Figure 2: 4G LTE will be more than 20 times the speed of 3G
Now pre-empt national standard key layout LTE essential patents, the United States is the most active, followed by China, South Korea and Japan. Further from the manufacturer level, the maximum amount of key essential patents Qualcomm, Samsung Electronics and Huawei hold hands (Figure 3 shows), accounting for all key 4G LTE essential patents into three, the main layout in the physical layer signal processing, receive and transmit this related technologies, followed by wireless information control. If coupled with Nokia, InterDigital and Ericsson, this former six vendors to grasp the key half of all 4G LTE essential patents. Taiwan has 12 vendors to participate in discussions 4G LTE technical specifications, but only HTC, Asus with the Institute for Information Industry to grasp some of the key patents, technology places wireless information control and media access control-oriented, but overall, 4G LTE essential patents Taiwanese manufacturers hold the key to less than 2 percent of all.


Figure 3: Mastering 4G LTE essential patents in key countries and companies (patent quantity)
However, the news is still developing 4G LTE technical specifications, and still continue to be in discussions to improve global communications companies. Taiwanese manufacturers still have a chance layout admission card bit. In accordance with 3GPP currently planned schedule of view (shown in Figure III), the 2017 date, 4G LTE specifications as well as 10 key technological breakthroughs must evolve, including dual-link mechanism of small base stations, multi-frequency carrier aggregation technology, cross- WiFi operation agreement, D2D security, according to the said (Push-to-talk), software-defined network (SDN), the user-side network congestion problems, unlicensed LTE solution, virtual applications with the cloud, and finally is 5G. Among them, SDN technology is an important foundation for the achievement of action cloud applications; most ram unlicensed LTE solution, places millimeter wave (mmWave) related technologies most suction eye. Currently 3GPP Release 12 discussions focusing primarily on technical specifications type base station dual link mechanism, multi-frequency carrier aggregation technology, the inter-operation agreement with the D2D WiFi security issues.


Figure 4: 4G LTE standard process and discuss key technology
Taiwanese manufacturers to effectively strengthen the value of the patented technology, we must find the right technology, the right direction. 4G LTE has become the key technology of global attention, with 4G, mobile phones not only allow mobile network speeds soared 20-fold, cloud services and industry but also because it has more potential for development. In particular, 4G LTE is an ongoing evolution of technology, global manufacturers are actively involved in discussions with the relevant specifications developed. Taiwan can not ignore such an arrangement chance alone 2% to create a competitive advantage for Taiwan is very limited. Therefore, with the tight schedule to discuss the specifications of 4G technology is basic, Taiwan manufacturers should further pre-established schedule tables began to develop technology projects scheduled to be on the basis of these technologies in 4GLTE master 5G competitive advantage. In addition, the use of research and development of energy science research community is also a key way, the mechanism through industry-academia joint research and development alliance, in addition to nurturing the next generation of communications technology professionals in Taiwan, more importantly, to accelerate the speed of technology research and development firms, strengthen patent layout efficiency.

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