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What is the relationship between 5G Narrowband IoT? 5G technology brings more than just faster internet speeds, but makes possible the intelligent interconnection of everything. Narrowband IoT is the prelude and foundation of 5G commercial use. Therefore, the evolution of Narrowband IoT is more important, such as support for multicast and continuous Mobility, new power […]
Antenna to transmit and receive wireless electromagnetic waves, how does transmitting and receiving antenna work? Any radio frequency equipment cannot work without an antenna, which is responsible for transmitting and receiving electromagnetic radiation, or electromagnetic waves from the air. In the transmitting direction, the antenna can convert the high-frequency current signal generated by the radio
The full name of GSM is the Global System for Mobile Communications, commonly known as Global GSM Communication system. It is a digital mobile phone network standard developed by Europe. Its development purpose is to let all parts of the world use a mobile phone network standard so that users can use a mobile phone
WiFi definition The full name of WiFi is Wireless Fidelity, also known as the 802.11b standard. Its biggest advantage is its high transmission speed, which can reach 11 Mbps. In addition, its effective distance is also very long, and it is also compatible with various existing 802.11 DSSS devices. WiFi is a brand of wireless
WLAN definition WLAN is the abbreviation of Wireless Local Area Network, which refers to the application of wireless communication technology to interconnect computer equipment to form a network system that can communicate with each other and realize resource sharing. A Wireless Local Area Network (WLAN) wireless LAN is a wireless computer network that links two
WWAN definition A wireless wide area network（WWAN） refers to a wireless network that covers the whole country or the world and provides wireless access over a larger range. Compared with wireless personal area networks（WPAN）, wireless local area networks（WLAN）, and wireless metropolitan area networks（WMAN）, wide emphasizes fast mobility. GSM mobile communication system and satellite communication system,
WPAN definition Wireless Personal Area Network Communication Technologies is abbreviated as WPAN. WPAN is a personal area network that uses wireless connections. In addition to 802.15 based on Bluetooth technology, IEEE also recommends two other types, low-frequency 802.15. 4 (TG4, also known as ZigBee) and high-frequency 802.15.3 (TG3, also known as ultra-band or UWB), wireless
WMAN definition Wireless Metropolitan Area Network (WMAN), like WLAN and WPAN, is a generic term for networking confined to a geographical area and a set of specific networking technologies that provide wireless communications in metropolitan areas. Wireless Metropolitan Area Network (WMAN) refers to a locally distributed wireless network that transmits information between distributed nodes that
The 1/4 wave antenna is the simplest form of a vertical antenna. It provides good performance combined with an omnidirectional radiation pattern and simplicity of construction. According to the theory of transmission lines, the 1/4-wavelength open circuit is equivalent to a series resonant circuit, so the entire load is purely resistive. On some occasions, due
The full name of LTE Cat is LTE UE-Category, LTE refers to 4G LTE network, UE refers to the user equipment, and Category is the level. LTE Cat is the level of 4G LTE network transmission rate that user equipment can support, and it is also a technical standard for 4G network speed. Therefore, LTE