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Today, we talk about the LTE Cat 1 vs Cat 4. After the read, you will know about the difference between LTE Cat.1 and Cat.4.

To distinguish between LTE Cat.1 and Cat.4, we need to know what Cat is. Cat stands for Category, and the numbers after Cat represent the different categories, which 3GPP names in the Cat.

Cat.X is used to describe the capability level of user terminals according to the 3GPP Release definition, and Cat4 and Cat1 are both standards for user terminal categories in LTE networks for 4G communications.

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Today, we talk about the 5G NR technology and the 6 Characteristics of 5G NR Technology.

What is 5G NR technology?

The 5th generation mobile networks or 5th generation wireless systems, 5th-Generation, referred to as 5G or 5G NR technology is the latest generation of cellular mobile communication technology, namely 4G (LTE-A, WiMax), 3G ( Extension after UMTS, LTE) and 2G (GSM) systems.

5G NR technology has set a new standard for wireless, opening up the spectrum above 6 GHz that has been previously unusable by cellular services.

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The relationship between 5G NarrowBand IoT

What relationship exists between 5G NarrowBand IoT? Whether Narrowband IoT is 5G technology in the end? Today, we will learn about the 5G Narrowband IoT relationship.

5G NR technology brings by no means only faster network speed, but will be the intelligent interconnection of everything is possible in fact, and NB-IoT is the prelude and foundation of 5G commercialization, therefore, the evolution of NB-IoT is more important, such as support for multicast, continuous mobility, new power levels, etc. As long as the infrastructure such as NB-IoT is complete, 5G New Radio can be truly realized.

Industrial IoT is relatively a regional network, so there is a possibility of a breakthrough. NarrowBand IoT bypasses 4G, no need to wait for the arrival of the 5G era all the time, 5G narrowband IoT takes the lead to come out and lead the way.

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Despite the hype of 5G NR, Wi-Fi and 5GNR together play an important role in corporate use cases such as remote patient care and smart manufacturing. How 5G Enhances WiFi in the industries?

5G new radio is a very new technology. In addition to faster speeds, when 5G is actually implemented.

The dramatic claim that New 5G will replace WiFi is unfounded to New Radio 5G? It doesn't work today.

Few industries are as affected by 5G as manufacturing. In the manufacturing industry, the advent of cellular technology could stimulate the next industrial revolution.

Most factories continue to operate on Wi-Fi networks, but the wave of smart factories based on 5G technology is beginning to emerge. 

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Today, we talk about the wired and wireless IoT Communication Technologies, the simple 13 common communication technologies in IoT.

We have compiled and summarized the commonly used wired and wireless communication methods of IoT for future reference.

Communication frequency band: license-free frequency band. Use Industrial Scientific Medical (ISM) frequency band, 915MHz (U.S.), 868MHz (Europe), 2. 4GHz (Global)

NB-IoT is built on a cellular network and only consumes about 180KHz of bandwidth, and can be directly deployed on a GSM network, UMTS network, or LTE network.

Communication frequency band: ISM frequency band including 433MHz, 868MHz, 915MHz, etc.

Communication distance: 2-5 km for towns, 15 km for suburbs

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From 12 perspectives on Narrowband IoT vs Lora technology to learn which IoT standard is more advantageous.

Rapid developments in machine learning and M2M communication standards are playing a key role.

Semtech's LoRa technology is a bit ahead of the curve in this area, but NB-IoT (narrowband IoT) is also rapidly gaining traction as a powerful LPWAN standard.

Lora and LoRaWAN are often used as synonyms, but they do not refer to the same thing.

NB-IoT works well in urban areas but has only mediocre performance in suburban and rural areas (where 4G signal is not available).

LoRaWAN does not rely on cellular data or Wi-Fi, so it can maintain relatively stable coverage in any region.

Note: Compared to the cost of constructing base stations for 4G-LTE, which is necessary for the introduction of NB-IoT, the cost of constructing base stations for LoRa is a fraction of that for 4G-LTE, and the low investment required gives LoRa a significant advantage.

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Today, we talk about something about NB-IoT which you may not know.

NB-IoT refers to Narrow Band - Internet of Things (IoT) technology, which focuses on the Low Power Wide Area (LPWA) Internet of Things (IoT) market and is an emerging technology that can be widely used around the world.

Huawei, as the domestic leader in developing NB-IoT technology, has also attracted considerable attention from the technology community.

Q: How are the frequency bands for NB-IoT divided by domestic and international operators?

A: Most operators worldwide use the 900MHz band to deploy NB-IoT, and some operators deploy in the 800MHz band.

China Unicom's NB-IoT is deployed in the 900MHz and 1800MHz bands, and currently, only 900MHz is available for trials.

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NB-IoT and LoRa account for 83% share of LPWAN market, low-power satellite IoT becomes a game-breaker, In-depth analysis of low-power wide-area (LPWAN) market in 2021.

According to the monitoring of IoT Analytics, in the second quarter and the third quarter of many countries because of the epidemic quarantine, the number NB-IoT and LoRa of LPWAN-enabled device activation in 2020 still reached 450 million units, with a year-on-year growth rate of 62%, especially in the epidemic prevention and control and supply chain visualization play an important role in the rapid growth of IoT applications;

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Today, we talk about the several major benefits of NFC smart homes. Guess what are the benefits of NFC smart homes?

For applications in the era of interconnected smart homes, NFC technology can increase the ease of use, safety, etc. of equipment, and can greatly change the lifestyle of our daily homes.

As a short-field communication technology, NFC has a very wide range of applications, such as mobile payment, channel inspection, automobiles, smart homes, industrial control, and so on. With the continuous evolution of smart home scenarios, a large part of NFC devices will appear in the living room in the future.

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What is an RFID warehouse management system?

RFID warehouse management system is a combination of RFID technology and warehouse management system to provide enterprises with a new storage model, to meet the needs of enterprise automation, transparency, intelligent storage, RFID technology, and warehouse management system to achieve a seamless docking, maximize the value of RFID technology applications in warehousing.

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Due to its wireless transmission characteristics, the adoption of RFID technology in logistics supply chain scenarios can bring a number of benefits. Here have 5 benefits of RFID in logistics supply chain.

Not only can it significantly improve efficiency, but it also opens a new window of digital information management. In general, the application of RFID technology in the logistics supply chain can bring the following benefits.

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The common wired and wireless communication technologies in IoT include RS-232, RS-485, USB, Z-Wave, IPv6, Wi-Fi, Bluetooth, Lora, NB-IoT, NFC, RF, GSM, 3G 4G, etc.

With the progress and development of the times, society gradually enters the Internet +, various sensors collect data more and more abundantly, big data applications follow, and people consider incorporating various devices directly into the Internet to facilitate data collection, management as well as analysis and calculation.

IoT intelligence is no longer limited to small devices and small network stages but has entered the complete field of intelligent industrialization. Intelligent IoTisation steps into maturity on big data, cloud computing, and virtual reality, and is incorporated into the whole big ecological environment of the Internet+.

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The new 5G and massive MIMO are everywhere. What can the 5G massive MIMO bring to our life?

With the continuous progress of information technology, digitalization, and big data, the development of antenna technology also has higher requirements, and the communication system keeps developing to the higher frequency band and larger bandwidth.

Looking back to the radio communication technology, from the 1895 Italian scientist Marconi, the first wireless telegram is filled with the other side of the ocean. It has already passed more than 120 years in social life, aerospace, military, etc. Radio communications technology has played an irreplaceable role.

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What is the ISM band and what are the main frequencies in the ISM band? After the read, you will get the answer.

This frequency range for 430.050 ~ 434.790MHz, in the world range.

This frequency range is from 868 to 870 MHz, in the UHF band. 

ISM Band Frequency 915 MHz

In the United States and Australia, the frequency range 888 to 889 MHz and 902 to 928 MHz has been available and used by the backscatter RFID system.

ISM Band Frequency 2.4 GHz

This ISM band frequency range is 2.400 ~ 2.483GHz, belongs to the microwave band.

ISM applications in this band include Bluetooth and 802.11 protocol wireless networks.

Microwave / Bluetooth / WIFI, etc. are used in this frequency, in addition to domestic RFID also uses this frequency.

ISM Band Frequency 5.8GHz

This ISM frequency range is 5.725 ~ 5.875GHz.

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The cellular IoT is a method of connecting physical devices (sensors, etc.) to the Internet, and transmits physical devices (sensors, etc.) on the same mobile network as smartphones.

The cellular network connects IoT devices will exceed 20 billion in 2023. Specifically, the number of IoT devices connected via LTE and 5G exceeds 3.5 billion, mainly in China and Northeast Asia.

Two major forms of cellular Internet of Things: LTE-M and NB-IoT

In fact, all current cellular IoT applications use either LTE-M or NB-IoT or GSM cellular infrastructure.

While only the United States, the Netherlands, Ireland, and Australia cover national LTE, GSM has become the norm in many non-Western regions such as Eastern Europe and Africa.

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What is narrowband internet of things technology? Why is the narrowband internet of things technology emerging?

What is narrowband internet of things technology?

NB-IoT refers to NarrowBand Internet of Things (Narrowband-IoT) technology. Different IoT services have different requirements for data transmission capability and real-time performance.

Depending on the transmission rate, IoT services can be differentiated into high, medium, and low speed:

High-speed IoT services:

Mainly using 3G and 4G technologies, such as in-vehicle IoT devices and surveillance cameras, the corresponding business features require real-time data transmission;

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After reading, you will learn what is an IoT antenna, what are the IoT antenna types.

Internet of Things (IoT) devices need to have an antenna. The smaller the IoT device space, the more the frequency band and the more complex IoT antenna design. Internet of Things/IoT antenna includes NB-IoT antenna, 4G antenna, 5G antenna, GSM antenna, Lora antenna, GPRS antenna, UMTS antenna, Lora antenna, ISM antenna, GNSS antenna, WiFi antenna, GPS antenna, etc.

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There are many types of wireless communication technologies in the IoT, such as Wifi, Lora, NB-IoT, Bluetooth, ZigBee, Sigfox, etc.

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Regarding the performance of active vs passive GPS antenna, both GPS passive antennas and active GPS antennas can receive GPS signals and achieve the satellite positioning function. But usually, the GPS active antenna is better than the passive GPS antenna, and the positioning speed active vs passive GPS antenna is faster.

From the antenna placement, GPS antenna can be divided into built-in antenna and external antenna; and GPS built-in antenna can be divided into the active and passive antenna.

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What is Mold Clamp?

Mold clamp tools definition

What is mold clamp? The mold clamp (also called mould clamp) is a kind of auxiliary clamping unit often used in injection mold processing, its main function is to keep the machined parts not shaking not moving in the processing.

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Mold clamp tools definition

What is mold clamp? The mold clamp (also called mould clamp) is a kind of auxiliary clamping unit often used in injection mold processing, its main function is to keep the machined parts not shaking not moving in the processing.

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