With the advent of 5G era, people put forward higher requirements on all aspects of indoor coverage. Due to difficulties in deployment and limited capacity growth, the traditional Das solution is not suitable for the development trend of 5G. The 4G distributed pick-up station can support 5G NR through modification. Project implementation is relatively simple, can achieve 4 × 4. MIMO has excellent capacity and performance, suitable for a variety of scenarios of 5G indoor coverage. This paper studied the layout position of Pico RRU in distributed Pico base station construction scheme, and designed the Pico RRU automatic layout function based on genetic algorithm in the drawing, in order to improve the efficiency of indoor power distribution system design ISDB Antenna,ISDB-T Antenna,ISDB Antenna for Car,IDSB antenna for Japan Yetnorson Antenna Co., Ltd. , https://www.yetnorson.com
What is a 4K TV
4K TV is a TV product with screen physical resolution of 3840×2160 pixels. It can receive, decode, and display video signals with corresponding resolution. The resolution is 4 times that of 2K TV. The viewer can see every detail in the screen. A close-up, with an immersive viewing experience. 
How to distinguish between true and false 4K?
Method one: You can test with H.265 encoded video files at the same resolution. If the 4K TV does not support playing 4K video in H.265 format, it can be determined as a fake 4K TV. 
Method 2: We can judge whether there is “RGBW†in the product's promotional materials or screen specifications. The normal TV pixel arrangement is RGB, and the true 4K screen pixel arrangement is a unique "RGBW" method. RGBW is the addition of W white sub-pixels to the original RGB primary colors, becoming a four-color pixel design, is a sub pixel rendering technology, consistent color performance in the new pixel arrangement, while significantly improving the LCD panel The light transmission rate is lower when the screen with the same brightness is displayed, and the brightness is greatly increased with the same power consumption, which makes the screen level clearer and the screen more transparent. 
Method 3: Identify true and false 4K TVs can also be authenticated by professional TV testing tools. For example, to download a sofa butler and various professional test charts for the resolution of 4K TVs. For TV screen detection, one of the functions is 4K TV resolution test. Through the test chart, you can clearly understand whether it is a true 4K TV. 
Method 4: The China Household Electrical Appliances Association also introduced a way to distinguish between genuine and fake 4K TVs. The fake 4K color is blurred and you can see the white line with a magnifying glass. 
Method 5: You can also see whether the TV has a 4K video source. Because 4K sources are difficult to find, many consumers have high hopes for 4K TV. The real “premium†4K TV brand not only has a good TV product, but also has a content service. If manufacturers can provide film sources for free, they can attract more consumers to purchase, and it is also a convincing proof of the quality of their products. 
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
How to tell if 4K TV is genuine or not? Sofa Tutorials teach you five strokes
4K should be an essential standard in the field of television boxes nowadays, but many products are marked with a 4K feature, but do you know what 4K is? How can we tell if 4K is true or false? Get More 4K Video Resources, You Can Install Sofa Butler on TV to Watch