The TD-SCDMA - based 3G is popularized this year, providing new opportunities and challenges for PCB. Through the brief introduction of PCB, the purpose of this paper is to provide information index for decision-makers, and to seize the opportunity in the future and avoid the risk in the future.
The development of global communication market has accelerated to the trend of 4G development. First, broadband business is becoming a climax. Secondly, mobile technology and technology coexist for quite a while. There are multiple access standards such as GPON (new generation passive optical integrated access standard). On the basis of a variety of domestic demand and external pressure, the existing 2G and 2.x G network in China is inevitable to the development of 3G. This year's TD - SCDMA commercial trial run, it has been proved that the spring of 3G comes before and after the Mid Autumn Festival in 2008.
China Mobile push TD - LTE standard for posterior to the development of T3G, the other two operators, Vodafone and Verizon accepted TD technology into the LTE standard system, so that TD LTE will likely become one of the core standards of 4G T3G in the 3G era, the smaller market share, but its future evolution route and has been the mainstream the technology is consistent, which also provides a prospect for the development of TD. The enhancement of the vitality of TD has also achieved the realization of the national complex, and also provides a coexistence platform for the development of 3G.
The sustainable development of TD paved the way for China's independent intellectual property rights. 27 companies, such as Vodafone, ATQT, NTT, DOCMO and NOKIA, supported TD - LTE. At present, the Chinese government is energetically promoting the industrialization of TD - LTE, which will help China's communications industry to achieve leapfrog development. At the February 2008 3GSM conference in Barcelona, China Mobile announced that it will work together with Vodafone (UK) and vERIz0N (USA) to test LTETDD as a solution to achieve common networking architecture through technology integration, so as to determine the future development direction of communication technology standards.
The Qualcomm Corp, which has been supporting the development of CDMA, has also announced that it will launch a chip that is compatible with LTE technology in 2009. Spreadtrum is as one of the wireless baseband chip supplier, in 2005 to participate in the discussion and formulation of 3GPP LTE standard, 4G research department was established in 2007, has put forward the general scheme of LTE air interface and 4G chip and terminal products series.
The industry recognized that the commercial time of LTE is 2010. Now many operators have WCDMA/TD SCDMA HSPA / HSPA network. Therefore, the hybrid network of LTE and 3G will probably dominate for a long time in the future.
China communication operators integrated in the second quarter, as a letter of redistribution of resources, but also the formation of the rationalization and allocation of communication resources. On the one hand, different resource groups develop to a variety of access methods, on the one hand, it also forms a relative competitive relationship. However, no matter which 3G standard is laid out in China, China's PCB industry has given everyone a hope in the cold stream of May.
In 3G network, system and terminal, the demand for PcB is relatively clear, system equipment demand will be in the second half of 2008 and 2009, the demand for PcB have a larger growth, but in the mobile phone, but due to the strong influence of the imbalance of supply and demand, and not in the next six months to one year is larger push.