LTE: Building End-to-end testing capabilities

As an important part of LTE industry chain, test instruments and test systems play a key role in product development and industrialization.

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; The first stage of China Mobile LTE scale test has been completed, and the test instrument and system are still not perfect. The main performance in the Multimode Terminal test instrument is relatively deficient, road measuring instruments and tools need to be further strengthened, wireless network analysis and optimization instrument tools to be innovated.

The test instrument needs to be strengthened

As for the test problems faced in the LTE scale test, Wei Guiming, of the Ministry of Industry and Information technology, said that the focus was on the need for further strengthening and innovation in systemic testing capabilities. The next phase needs to be strengthened in four areas: first, the development of smart antenna and MIMO Network Research wireless test system; second, the development of a multimode terminal test instrumentation, improve production lines and research and development of various types of instruments; third, to speed up the improvement of road measuring instruments and tools, improve the testing function and measurement accuracy, enhance analytical capability; Forth, innovate new instruments and tools for wireless network analysis and optimization.

In this regard, TD Technical Forum Secretary-General agreed time, he said, in the test instrument link, LTE products, basic functions and performance testing can be achieved, but there are two areas still need to be strengthened. First, we should strengthen the Network Regulation Network optimization testing tools, LTE network is the coexistence of multiple networks, the network planning and network optimization testing tools is necessary; Secondly, we should strengthen the business simulation test instrument and system, conduct deep business simulation and business performance test for different service types and different user behavior habits.

Innovative End-to-end Testing

At present, the demand for LTE test instruments has covered all aspects of the entire industrial chain. With the development of new technology, the requirements for testing have also changed. Wei Guiming said that the improvement of testing capacity is not a simple development of the instrument problem, the new technology needs innovative testing capabilities. In order to meet the requirements, it is necessary to make efforts in three aspects: first, to strengthen basic research and standardization; second, to establish end-to-end testing, third, to strengthen the multi-level quality testing capacity.

According to the new technology to the test, the director of China Mobile Institute of testing Zhao Lijun said, at present, the requirements for testing is to achieve "measurable, measurable, knowable." Since the establishment of the Testing Institute, China Mobile has been using a variety of testing instruments in its work. With the expansion of the network scale, the business platform has been expanding and the instrument is expanding. And the meter is very expensive, although a single instrument can be very good to meet the single point of test, but the current instrument design has not been able to do a number of instruments in the synergy between, so there is no way to do the full link of the test. Therefore, the test instrument should be able to achieve platform, networking, automation, intelligence, should be abstracted in all areas of the common characteristics of instruments, to establish End-to-end tool support system.

It is based on this demand, China Mobile proposed the concept of cloud testing, through the introduction of cloud computing technology testing, improve testing capabilities. At present, cloud testing is still in its infancy, China Mobile hopes to establish LTE "Cloud Test" instrumentation system, to carry out LTE end-to-end testing.

Upgrade the industrial chain

For a long time, the test instrumentation has been lagging behind the development of the system equipment, this is mainly because the test instrumentation in the research and development phase investment is very large, modify flexibility, in the face of uncertain market demand, testing enterprise pressure is often relatively large. In the LTE industry chain, the test instrument and system also need to improve.

"There is still a lot of concern about the investment of TDD, because the LTE tester is still in the research and development phase, but with a lot of investment, the returns are very small, and the FDD test equipment we've developed is starting to pay off," said Lin She Cong, the manager of the company's product marketing department.

From this point of view, as a test enterprise, we expect LTE terminals to achieve large-scale production, China Mobile should carry out more activities to further expand this standard to the global, testing enterprise products will be large-scale applications. ”

In this respect, Wei Guiming said, "the instrument of innovation is promising, although its market is very small, but it is very critical." It may be a short link in the industry chain, but missing the link, the industry chain is broken. ”

(Responsible editor: The good of the Legacy)