TD-SCDMA test encounters setback

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TD-SCDMA test encounters setback [Copy link]

TD-SCDMA test encounters setback

　　During the TD-SCDMA field test, many problems did occur, such as a very high call drop rate and rumors that there might be some physical instability during co-frequency transmission. Shi Wei contacted the test personnel of the Telecommunications Research Institute and the operator to verify repeatedly, confirming that there were no problems at the physical level or in principle, and that the main problem was with the test facilities.

　　Sina Technology learned from a test report from a certain operator that power supply problems, card interface compatibility problems, unstable terminal performance and immature support for 3G special services are still plaguing TD-SCDMA terminals. The on-site test results show that TD-SCDMA terminals are still a long way from being officially commercialized. Given that the development of 3G services is inseparable from the maturity of terminals, how operators can grasp the selection criteria for TD-SCDMA terminals is a very realistic issue.

　　At present, the selection criteria for 3G terminals is still the terminal consistency test, but the consistency test has many limitations. Operators rarely test the user plane and only care whether the test complies with the protocol specifications, but not the quality of the mobile phone. In addition, the test of specific 3G services carried out by operators is basically not involved. There is currently no organization to implement and write test cases for TD-SCDMA terminal consistency testing, and there are relatively few test instruments that support TD-SCDMA. Many tasks are still being improved and progressed.

　　There are other reasons for the unfavorable test

　　Sina Technology previously learned from an insider that during the TD-SCDMA test, operators were negative about the independent 3G standard and did not cooperate well. Shi Wei pointed out: "It is normal for operators to have emotions, and I can understand this lack of enthusiasm. If I were an operator, I would think so too. An investor would definitely be worried about a technology that has not been commercially tested, and would definitely not be very enthusiastic. We emphasize that enterprises should operate independently, and the operators' actions are understandable, so this leads to a relatively high drop rate in Baoding."

　　When China Telecom built a test network in Baoding, local residents were very environmentally conscious and believed that antennas on rooftops would cause radiation and so they were not allowed to be built. In many cases like this, antennas could not be built in a certain location where they would have the best effect, so some problems arose during the test.

　　In addition, Baoding has a complex and diverse topography, with mountains, hills, plains and lakes; Qingdao and Xiamen, as tourist cities, have high population densities, making it easy to test the technical characteristics of TD-SCDMA. A person involved in the test admitted that the final result of this test will directly affect the future trend of China's 3G, so in the actual operation, many harsh environments were deliberately selected to fully consider the technical characteristics of TD-SCDMA.

　　National standards need to be refined

　　On June 22, an expert from the Development Research Center of the State Council received a call from Baoding and learned that Baoding's TD-SCDMA test call rate reached 97%, a good result.

　　Shi Wei humorously compared: "We must adopt unconventional means to deal with TD-SCDMA, just like we did when we fought the Japanese invaders during the Anti-Japanese War . If the Eighth Route Army had adopted a group army battle in the North China Plain at that time, we would have suffered heavy casualties in the war with Japan. Only by lighting up every village and every place can we win."

　　During the interview, a netizen pointed out in a comment: "The 3G license issue is a state-level confidential information. There are too many interests involved, so you may not be able to answer. I just want to learn from Mr. Shi whether there have been any breakthroughs in the possible application problems encountered in the current 3G testing work." His concern was beyond words.

　　"Should my country's independently developed two bombs and one satellite technology be aligned with foreign technology under current conditions? The Chinese should create their own standards and technologies and treat their own technological industries like the Koreans and Japanese!" a netizen made a bold statement.

　　"If you don't shake out the lice, you will never find them. Now we should treat China's TD-SCDMA as a sick patient, put it in the hospital for X-ray, CT scan, B-ultrasound, and then prescribe the right medicine. Covering it up won't work." Shi Wei said, "If we think that TD-SCDMA is not mature enough for commercial use, we should issue TD licenses to any company to build the entire network in Beijing in preparation for the 2008 Olympic Games. Even if the connection rate drops, we can try. By this time next year, the problems that should have occurred will have occurred. If TD-SCDMA really has problems, I think we really need to review the Third Plenary Session of the 11th Central Committee of the Communist Party of China, which stated that practice is the only criterion for testing truth, and act in a pragmatic and objective economic law."

　　TD-SCDMA technology itself is still in the process of continuous improvement. In the case of limited experience in terminal use and insufficient testing support, it is even more necessary for operators to carefully check and conduct comprehensive testing to avoid negative impacts on future business development due to issues such as terminal quality. ( Changle Weiyang /Text)