The development strategy of TD-LTE terminals has caused controversy, although China Mobile hopes to build multi-mode and multi-frequency TD-LTE terminals, that is, TD-LTE terminals must be compatible with multiple standards such as FDD LTE, GSM, TD-SCDMA and WCDMA However, some manufacturers complained about this, and believed that "the multi-frequency and multi-mode requirements of TD-LTE terminal chips should be promoted in an orderly manner and respect market choices." The technical requirements of TD-LTE multi-mode multi-frequency attract hot discussion "Too high demand for TD-LTE terminals will cause the weakest chips and mobile phones to be delayed and unavailable, leading to delays in the maturity of the industry and the loss of important opportunities." Recently, an important manufacturer in the industry believes that China Mobile is currently -The technical requirements of the LTE terminal are too high. This is due to the launch of 4G. Regarding these TD-LTE devices, the main hydrangea thrown by China Mobile President Li Yue during his visit to Taiwan more than ten days ago is that TD-LTE is expected to enter the first year of commercial use in 2013, and the scale of TD-LTE base stations is expected to exceed 200,000. It is expected that TD-LTE terminals will form a market scale of 100 billion yuan in a few years. The key point is that Li Yue said at the time that TD-LTE should support multi-mode and multi-band, and be compatible with FDD LTE, GSM, TD-SCDMA and WCDMA, and support multiple bands at the same time to adapt to global roaming and terminal universality. While attending an industry conference earlier, Tang Jianfeng, assistant general manager of China Mobile Terminal Company, also said that in the TD-LTE era, MiFi is a key product form for development, and China Mobile will promote TD-LTE MiFi products to support five modes and ten frequencies And achieve global roaming. This statement caused shock in the terminal industry, because it is not difficult for chips and terminals to achieve dual-mode. At present, regardless of WCDMA, TD-SCDMA or CDMA2000 mobile phones, many are dual-mode systems, and multi-mode, even five-mode ten-frequency , It's not that simple. Premature support of the five-mode ten-band will lead to excessive costs At this time, the discussion about the TD-LTE terminal is of great practical significance. On February 2, China Mobile Zhejiang has taken the lead in announcing 4G trial commercial use in Hangzhou and Wenzhou. The TD-LTE terminal used is MIFI + CPE. MIFI is a wireless router that integrates 4G services, and CPE is a A wireless device terminal that converts 4G signals to WIFI signals. According to people familiar with the matter, for TD-LTE, China Mobile has formulated the following principles. First, China Mobile hopes for the coordinated development of multiple OSs. Adhere to the coordinated development of a variety of mobile phone ecosystems, adhere to user and market choices as the basis for the development of operating systems, and promote the multi-price product layout of Windows Phone in international and domestic mainstream brands. Second, China Mobile wants to accelerate the rapid maturity of TD-LTE terminals, especially the rapid maturity of MiFi products. "MiFi products are the most important type of data products, especially in the TD-LTE era. Mobile will promote TD-LTE MiFi products to support five-mode ten-band and achieve global roaming; at the same time promote the rapid maturity of CSFB-dual standby voice solutions. " Most of these principles are recognized by the industry. However, some people think that the starting point is aimed at global universal and global roaming, "the starting point is too high." "We are worried that the terminal cost in the early stage of commercial use will be too high, which will affect commercial promotion. In addition, chips, antennas, testing and other links will increase costs, and IP costs will also increase significantly." Executives said so to Sina Technology. In addition, most TD-LTE terminals do not require international roaming, especially low-end and data terminals. In the current 3G era, international roaming data communication services are very expensive, and few people can afford it. Most people turn off the data service roaming function when they go abroad to avoid inadvertently paying high fees. Even in the early stages of TD-LTE development, the number of people who have the opportunity to go abroad every year will not exceed 1/10 of the Chinese population, and the proportion of people who may use TD-LTE terminals to go abroad will not be high, let alone pay higher data. Data cost. "We also feel that most TD-LTE terminals support five-mode ten-band (GSM / TD-S / WCDMA / TD-LTE / FDD LTE), which is not cost-effective," said the executives of the aforementioned TD-LTE terminal manufacturers. Foreign chip companies will take the lead In fact, the core issue that worries the industry is the contest between Chinese and foreign manufacturers in the 4G era. TD-LTE domestic manufacturers are generally worried that the overall strength of China's chip manufacturers is weak. TD-LTE terminals supporting five modes and ten frequencies will greatly increase their R & D investment, and will cause domestic chip manufacturers to lag behind foreign chip companies from the beginning, although TD -LTE is aimed at supporting domestic national enterprises. However, China Mobile has its own considerations. China Mobile hopes that no matter what means it uses, it will first succeed in TD-LTE. The relevant person in charge of China Mobile introduced the overall development strategy of TD mobile phone products and said: "We must adhere to the principles of scale development and quality priority; low-end leading, mid-range breakthrough, high-end intensive cultivation, and building high-end boutique stars; 'Development, strive for better prices and quality. " As can be seen from the above, China Mobile hopes that TD-LTE will be more inclined to create quality star products. Moreover, on many occasions, China Mobile expressed its hope that Qualcomm and other international chip giants will join the TD-LTE industry chain. In China Mobile ’s first tender for TD-LTE terminal products completed in December 2012, people familiar with the matter revealed that a total of nearly 10 chip vendors participated in the competition, but Qualcomm alone accounted for 40% of the market share, which has enhanced China Mobile ’s The confidence of TD-LTE terminals is also reminiscent of the era of Qualcomm dominating CDMA chips in the 2G era. "No one expected that Qualcomm's chips accounted for such a large proportion of the TD-LTE terminals that China Mobile won for the first time," said a person who participated in China Mobile's first tender for TD-LTE terminal products. But another consequence is that Chinese local chip companies may lag behind Qualcomm and other international manufacturers from the starting line. In fact, domestic chip manufacturers are not without opportunities. It only takes a certain amount of time. It is not a problem for domestic chip companies to develop mature TD-LTE multi-mode and multi-frequency chips. Therefore, some industry companies recommend, "Do n’t unified requirements, respect market choices, have Planning, phased, and step by step combined with actual business needs to jointly develop multi-mode multi-frequency requirements. " Solar Landscape Lights,Solar Lawn Lights,Solar Powered Yard Lights,Solar Powered Landscape Lights Jiangmen Biaosheng Solar Energy Technology Co., Ltd. , https://www.bsprosolar.com