[China Instrument Network Industry Focus] Recently, the "2015 ZTE Wulian All Series LTE Module New Product Launch Conference" was held in Shenzhen. ZTE's products cover LTE system equipment, terminal products, LTE modules, and LTE chip platforms, which are related to smart meter information.
Wang Peng, deputy general manager of Zhongxing Wulian, was interviewed by the media. He said that the most important of their new module products is the ME3620, which is LTE five-mode and fourteen-band, supporting all 2G, 3G, and 4G of China Mobile and China Unicom, and China Telecom’s 4G. The first major subdivision industry is smart energy meters. With the global upgrade of the communications industry, the rapid growth of LTE, LTE network coverage is getting better, more and more terminals, the cost is gradually reduced, will become the new mainstream communication. The smart meter industry requires equipment for more than 10 years of service life. The LTE communication module ME3620 can guarantee an effective lifetime of more than 10 years, providing a reliable and lasting communication guarantee for the future of the smart meter industry.
According to industry insiders, 4G module positioning is to collect uplink channels, and part of the distribution network has an upstream channel. The purpose is to grab operators' business and Huawei's layout in the South Network is the same.
Some other industry sources pointed out that 4G should have its own position. It is an important part of the promotion of the AMI system. Most of the foreign exhibitors have support for 4G communications. The promotion is fast and flexible, but the cost is relatively high.
It was also suggested that: 4G in the electricity market, first of all driven by freshness, mistaken for a new good; followed by misunderstanding driven, that where 2G signal is not good, using 3G, 4G data can be returned. The possible market in the future lies in new applications. If the terminal needs to take photos, video or audio, the power company must prevent theft, or supervise and inspect the work on site, the 4G communication module is needed. Because GPRS channels pass these contents too hard. If only the power data is transmitted, especially the "day frozen" data of a daily set of meters, the GPRS channel is sufficient. In fact, the coverage and stability of 2G networks are much better than those of 3G and 4G, and the signal penetrating power of 900 MHz is also better.
One industry insider also provided four-point proof that the 4G module will soon replace GPRS. First, 2.5G mobile Unicom Telecom no longer invests; second, 2.5G band has been occupied by 4G; third, relative to 4G, GPRS operating costs are not cheap; Fourth, the power line broadband, GPRS is already a bottleneck.
In addition, some industry sources pointed out that the smart metering systems planned and promoted by major German power companies are mainly based on 3G, LTE and BPL, and the communication modules are integrated into smart meter gateways.
Look at the development status of foreign 4G LTE In February of this year, the United States Itron announced the launch of its new 4G LTE smart meter solution. The solution uses an Open Way CENTRON 4G LTE meter, the latest technology in Itron's cellular portfolio, offering broad area coverage, low latency and long network life, using today's fastest 4G LTE technology.
Smart Cellular Metering technology is part of Itron's Open Way Smart Grid Solution, which gives utilities the option of deploying any combination of cellular and radio network communications, including 4G LTE, all under the same network management system. 4G LTE communication is particularly useful for difficult-to-reach locations or areas or scenarios. Due to the low latency 4G LTE network, this new solution is also a good choice for DA/SCADA applications or monitoring distribution systems that use smart meters as grid sensors. The smart meter solution includes an LTE modem from Sierra Wireless and will use Verizon's wireless network (the largest and most reliable 4G LTE network in the United States, covering 97% of Americans).
In addition, by having Itron's Open Way CENTRON 4G LTE smart meter run on Verizon's 4G LTE and smart IP networks, it can help the grid become a smart grid of the future, making the smart grid industry possible to move to the Internet of Things in another way.
In April of this year, Germany, Ericsson, together with Telekom Germany and E.ON Research Center of Aachen University of Germany, demonstrated the feasibility of using LTE networks for smart meters in the energy field. Field testing validates that LTE optimization, one of the LTE standard features, provides a highly reliable and flexible alternative to the existing power line and fixed network connections for smart meters.
Experiments have shown that LTE can provide a highly reliable and flexible communication link for smart meter-to-utility company IT systems. With Ericsson's commercial LTE base stations, the utility's IT central system can receive smart meter message flows with expected transmission times of less than 100 microseconds even when the wireless network is under heavy load. The LTE QoS feature was used in the experiment to optimize smart meter message flow. With the optimization function, even when other traffic on the network has a long delay and the network is overloaded, it can quickly receive messages from the smart meter. Preemptive MMS message flow is smooth. The test of transmitting information through the real base station is consistent with the results of the test simulation.
The functionality provided by LTE makes it a great choice for many utility solutions from German utility companies. The new features provided by LTER 13 and beyond will further enhance the LTE performance in support of utility companies' use cases. When 5G is mature and available, wireless networks will meet the demand of the most challenging utility companies for real-time use cases.
LTE Development Outlook In the application architecture of the Internet of Things, the network layer is responsible for transferring various types of data. Currently, for different types of applications such as smart grids, smart homes, and wearable devices, communication means are emerging in an endless stream. 4G LTE is currently the main direction of communication technology development. Thanks to its globally uniform standards and comprehensive support for mobile operators' basic networks, 2G, 3G, and 4G technologies are already widely used, driven by a large and well-organized industrial chain, and their maturity, cost, and traffic costs are With continuous optimization, more and more applications for Internet of Things have selected 4G LTE.
As of April 2015, 393 LTE networks have been deployed in the world. 4G LTE continues to expand in the area of ​​IoT, especially in the field of smart meters. Numerous data prove that LTE is the best choice for smart meter communication deployment. It has ubiquitous coverage, stable performance, and strong security barrier connections. The 5G communications technology 5G has proposed concepts and requirements in the communications industry and is expected to be commercially available around 2020. It can be said that in the future, the development prospect of LTE communication technology is very broad!
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