After the completion of the construction of the provincial capital nightscape, one of the city's National Day gifts, it received the attention of the general public. Recently, the reporter interviewed Xiao Huigan, the consultant of the China Lighting Society and the leader of the Beijing Urban Night Lighting Expert Group, on the occasion of the famous lighting experts from China.    “The construction of night scenes in Shijiazhuang is close to the level of Beijing, and it is rare in China.†After finishing the visit to the night view of the city, Xiao Huigan told reporters. He said that the construction of the night scene in Shijiazhuang reflects the advantages of overall planning, and scientifically integrates various architectural and light source elements to reflect the beauty of harmony.    When talking about the night view of the railway station, Xiao Huigan believes that the construction of the night view of the railway station highlights the characteristics of Shijiazhuang and also reflects the style of the night view of Shijiazhuang. "It is not generalized and distinctive." Xiao Huigan said that the "full-point chase" landscape of the railway station reflects Shijiazhuang's unique characteristics as a "city brought by the railway" and is unique in the country.    At the same time, in the lighting of the railway station square, the floodlights with warm colors are mainly simple and clean, creating a kind of home warmth and harmony. Xiao Huiqian believes that the beauty of the city's night scenes, in terms of characteristics, whether it is lighting or color, must closely follow the characteristics of the building and reflect the characteristics of the building itself. "The lighting of Shijiazhuang reflects this."    Xiao Huiqian expressed appreciation for the energy saving and emission reduction work in the city during the night scene lighting. He said that Shijiazhuang used a variety of lighting methods in the night scene lighting, and achieved good results. Moreover, these light sources are not conventional light sources, and are energy-saving light sources such as LEDs. Although the amount of use is large, the power consumption is relatively small, and the purpose of energy saving is achieved.    "This night's construction of Shijiazhuang is the biggest change." In recent years, Xiao Huigan has visited the city many times and is familiar with the construction of the night scene of the city. "Now there are not only single bright spots, but the overall level is also improving. Xiao Huiqian believes that the current night view of Shijiazhuang has formed a framework for nightscape construction centered on the railway station area, with Zhongshan Road and Yuhua Road as the lines, with important parts as the nodes.    While affirming the construction of the night scene of the city, Xiao Huigan suggested that it is necessary to do a good job in post-management work. He said that in some cities in the past, after the completion of the construction of the night scene, the management failed to keep up with the situation, and the phenomenon of light source damage often occurred. Not only did it not function as a beautified city, but it also affected the image of the city. The management results are well managed, ensuring normal use, and truly functioning to beautify and brighten the city." LTE CAT4/CAT6 Definition 4G Cat4 Cpe,Mini Soho Portable 4G Cpe,4G Lte Router,4G Volte Router Shenzhen MovingComm Technology Co., Ltd. , https://www.szmovingcomm.com
The full name of LTE CAT is LTE UE-category, which is broken down to explain :LTE refers to 4G LTE network, UE refers to user equipment, and Category is translated as level. Smooth interpretation is the level of 4G LTE network transmission rate that user devices can support, which can also be said to be a technical standard for 4G network speed. Therefore, LTE CAT4/CAT6 means that the user device LTE network access capability level is 4 or 6.
Since the level is different, then its capabilities are certainly not the same, let's take a look at LTE CAT4/CAT6 affect what performance, respectively, what level. Simply put, LTE CAT affects the upper limit of 4G LTE uplink and downlink network speed, which is generally referred to as the maximum upload and download speed that a user device can achieve.
There are not only 4 and 6 levels in LTE CAT, but the table above is our list of currently known LTE CAT levels and the corresponding maximum transmission speed. Among them, LTE CAT4/CAT6 is also the current network transmission technology level of 4G mobile phones, while the faster CAT7 and CAT8 are still in the laboratory stage and have not been commercially developed.
Phones and chips that support LTE CAT4/CAT6
As far as the current 4G mobile phone market is concerned, most mobile phone products are CAT4 technology, and only a small number of new mobile phones use CAT6 technology, such as Huawei Honor 6, Samsung Galaxy S5 advanced version and LG G3 Cat6, and the concept of LTE CAT6 is proposed by Huawei Honor 6.
For the mobile phone LTE CAT4/CAT6 standard, it is directly linked to the mobile phone chip, or, if you know the processor of the mobile phone, you know which technology the mobile phone uses. For the current 4G mobile phone chips, only Huawei Kirin 920 and Qualcomm Snapdragon 805 processors for LTE CAT6, before this 4G chips are LTE CAT4, the future and Kirin 930, Qualcomm Snapdragon 808/810 will support LTE CAT6. Mediatek won't have LTE CAT6 chips until the second half of next year.
Qualcomm Snapdragon 805, 808, and 810 also support LTE CAT6
It is worth mentioning here that Qualcomm Snapdragon 805 and Kirin 920 are not the same in chip design, the LTE CAT6 baseband of Snapdragon 805 is an external Gobi MDM9x35, while Kirin 920 is a direct SoC integration, and the chip is integrated, this point Kirin 920 has ultra-high integration. It has certain advantages in power consumption and cost. As a leading international communications company, Huawei's strength can not be underestimated, but also the pride of our people.
The actual use value of LTE CAT6
Upload, download speed is our use of mobile Internet access the most concerned performance, but it should be clear that the LTECAT standard is the 4G transmission speed limit, and can not improve the transmission speed, in the operator's 4G network speed has not reached the next standard, simply raising the limit is meaningless. At present, the 4G networks of domestic operators are all LTE CAT4 standards, and the peak download speed is 150Mbps, but it is difficult to reach the upper limit of LTE CAT4 in practical applications, and even to reach 100Mbps is very difficult, so at this stage LTE CAT6 has no use value.
In terms of real life applications, LTE CAT6 is not as beautiful as we think. We can do a calculation, according to the formula 1MB/s=8Mbps, the maximum download speed of LTE CAT4 is 18.75MB/s, such a download speed, for 1080P video online playback has no pressure, even 4K online film source still can not occupy such a large bandwidth, So LTE CAT6 has no use either.
To sum up, LTE CAT6 does not have much use value at this stage, and the term is only a gimmick of manufacturers, until the operator 4G standard reaches LTE CAT6, I believe that LTE CAT6 equipment has long been popular. So as for whether the phone is LTE CAT4 or LTE CAT6, you don't have to care.