What is the difference between broadband and narrowband? How should we choose broadband and narrowband in project use? Before talking about choice, let’s first understand what broadband and narrowband are. Understand the concepts first, and then make targeted choices.
What is bandwidth
In the communications industry, bandwidth may have two meanings. One is the frequency bandwidth, referred to as bandwidth, the unit is Hz; the other is the maximum transmission rate of the network, the unit is bps. Broadband is a term that is artificially defined and does not have strict standards.
Bandwidth is used in many fields. It can be used to identify the data transmission capability of signal transmission, the amount of data passing through the link per unit time, and the display capability of the monitor.
1. In analog signal systems, it is also called bandwidth, which refers to the amount of data that can be transmitted at a fixed time, that is, the ability to transmit data in the transmission pipeline. Usually expressed in transmission cycles per second or Hertz (Hz).
2. In digital devices, bandwidth refers to the amount of data that can pass through the link per unit time. Usually expressed in bps, which is the number of bits that can be transmitted per second.
What is narrowband
Network access methods with a network access speed of 56Kbps (maximum download speed of 8KB/S) and below are called “narrowband”. Compared with broadband, the disadvantage of narrowband is that the access speed is slow.
It should be noted that there is no clear definition of the difference between narrowband and broadband. Broadband is only relative to narrowband. “Narrow” and “wide” are relative concepts, and there is no strict numerical limit. What are they relative to? It refers to the relative channel characteristics. on signal characteristics.
Different mobile communication standards support different bandwidths. For example, LTE can support different bandwidths such as 1.4Mhz, 3Mhz, 5Mhz, 10Mhz, 15Mhz, and 20Mhz.
Narrowband Internet of Things (NB-IoT) technology is applied to agriculture, industry, government and life. It is widely used in real-time monitoring and early warning of environmental data in oil fields, oil wells, gas fields, steam pipelines, heating pipelines, water pump rooms, refrigeration, warehousing, agricultural greenhouses, breeding, etc. It is used in wireless monitoring and early warning of computer rooms, machine station power and environmental monitoring systems, low-voltage power distribution monitoring systems, power data monitoring systems, factory machinery and equipment, production line operating status monitoring systems, production information collection systems, etc.
Keywords in this article: Industrial 4G router, GPRS RTU