What is the Internet of Things card opening? What are the ways to open the Internet of Things card i

2021-08-02 01:46

In the era of the Internet of Everything, social production and lifestyle put forward new demands on mobile communication networks, and gave birth to technologies such as IoT cards, 5G networks, and intelligent AI for the purpose of realizing IoT connections. Their birth is the thriving Internet of Things. Industry injects more solid technical support. Compared with the past, today's Internet of Things technology has made new developments. With the blessing of new technical means, now the Internet of Things card has realized the air card opening technology. The emergence of the Internet of Things card opening card method has ushered in new developments in the Internet of Things. The situation, but for many people, they are not familiar with what is the Internet of Things card air card opening. Today we will come to know what is the Internet of Things card air card opening and what are the air card opening methods of the Internet of Things card.



IOT card issuance in the air.jpg


   Two ways to open the Internet of Things card in the air


   Internet of Things card opening technology in the air is also an over-the-air download technology, which is a technology for remotely managing the data or applications in the traffic card issued by the operator through the air interface of the GSM network, WCDMA network, LTE and other networks. Among them, the air interface can adopt short message technology, GPRS, WAP and CDMA 1 X, WCDMA and LTE technologies. The application of over-the-air card opening technology makes mobile communications not only limited to traditional voice services and data services, but also provides new services such as card data management and new business downloads. 




   There are two main ways to open a card over the air, one is based on SMS and the other is based on BIP.


  Traditional air card issuance systems all use point-to-point short message bearing methods. Each short message has a special short message header, and uses the data short message as the carrier of information download. When the mobile terminal receives the data short message, the short message will not be displayed on the screen of the mobile phone, but will be directly transmitted to the SIM card for storage And processing. Due to the technical limitations of short messages, the length of short messages cannot exceed 140 bytes, and since short messages are generally transmitted through signaling channels, the transmission rate is only 300bit/s. In this way, limited by the size of its transmission data and its transmission rate, the business model of SMS over-the-air card is relatively simple, mostly on-demand information services, and the data must be forwarded through the SMS center and SMS gateway in the middle, which has poor real-time performance. In addition, the short message mode OTA is a connectionless transmission mode, so there will be a problem of message loss.


   In order to solve the problems of the SMS over-the-air card opening method, an over-the-air card opening method based on the BIP (Bearer Independent Protocol) protocol was proposed. The BIP protocol is a connection-oriented transmission protocol proposed by 3GPP in its specification TS 31.111. The BIP protocol mainly provides a mechanism: when both the SIM card and the terminal use the BIP protocol, it allows the SIM card to pass through the terminal. GSM, CDMA, UMTS and other mobile communication networks directly establish connection-oriented data channels with OTA servers, thereby triggering some active commands including OPEN CHANNEL, CLOSE CHANNEL, SENDDATA, RECEIVE DATA, GET CHANNEL STATUS and events such as Data available and Channel Status . The realization of these processes no longer requires the forwarding of the original SMS center.


The largest domestic IoT card trading platform: Wulianka Home (www.wulianka.cn) pointed out that the latest data from market research company Machina Research shows that the number of global IoT connections will increase by 4~ between 2015 and 2025. 5 times. In 2017, the number of global IoT connections is expected to be 8 billion. According to expectations, this number will increase to 27 billion by 2025. During the same period, IoT revenue opportunities will increase from 750 billion U.S. dollars to 3 trillion U.S. dollars, of which 1.3 trillion U.S. dollars of total revenue will come directly from end users through equipment, connections, and application revenue. The rest will come from upstream and downstream resources, including application development, system integration, hosting and data monetization.


In 2025, China will lead the global Internet of Things market. According to the proportion, China will occupy about 20% of the market of Internet of Things connections. That is to say, according to Machina Research’s forecast, by 2025, China’s Internet of Things About 5.4 billion, the number of connections per capita reached 5.


   The operator is the provider of the network and the initial seller of the Internet of Things card. The virtual operator refers to the cooperative partner authorized by the operator


   partner. Operators build networks, cooperate with card manufacturers such as Datang and ZTE to make IoT cards, and then enter the IoT cards on the IoT platform. At this time, the aerial card issuance IoT card has the function of using it. It is worth noting that the operators here are not only telecom operators, but also operators that can build Lora and Sigfox networks.


   Just like the beginning of the development of communication networks, operators want to quickly seize the market and need more cooperation channels to support them.


   Need more cooperation channels to provide market resources. Therefore, virtual operators came into being. In the future, virtual operators who have good sales channels for air card issuance, or have abundant air card market resources, or have core technical capabilities for air card issuance, or have a good understanding of a vertical industry, will stand out.


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