At the recently held “2020 International Virtual Operation Conference and China value added telecom business summit forum”, Shen Cen, an expert from Institute of technology and standards of China Academy of information and communication, introduced in detail the current situation and future trend of number carrying network transfer in his speech.

Why to promote the number carrying network transfer

As early as 1999, in Hong Kong, the United Kingdom, the Netherlands and other more developed countries and regions, we took the lead in providing the number carrying network transfer service, which helped the market mature and open, and has been widely promoted in the world.

Up to now, more than 80 countries and regions around the world have carried out the number carrying network transfer service. Through the investigation, the China Academy of information technology found that the number carrying network transfer service promotes the free choice of users, and users can vote with their feet when they choose the service provider, which reduces the threshold of users’ network transfer and avoids a series of costs and risks caused by number changing.

The introduction of the number carrying network transfer service will also promote and improve the overall information and communication service level of the local country; from the perspective of the overall distribution of the industry, the number carrying network transfer indeed promotes the healthy competition of the industry and promotes the sustainable and healthy development of the industry. The real significance of number carrying network transfer does not lie in how much it carries, nor does it encourage users to have to transfer, but whether users can transfer, the degree of freedom and the degree of satisfaction after carrying are important criteria to measure the success of number carrying network transfer promotion.

The number carrying network transfer in China started in 2010. At that time, an overall experiment of more than eight years was carried out in Tianjin, Hainan, Jiangxi, Hubei and Yunnan. In March 2019, the government work report proposed to implement the number carrying network transfer nationwide. By the end of 2019, the major tasks deployed by the State Council and the Party Central Committee in the government report should be completed. Since March after the document was issued, MIIT has organized three operators to jointly complete the important task of nationwide promotion of number carrying network transfer. Before the nationwide promotion of number carrying network transfer, the administrative supervision department has a clear object delineation on the specific implementation scope, regional scope and number service scope of number carrying network transfer service.

China's cumulative carrying capacity has exceeded 18.5 million, with an annual carrying ratio of more than 1%

Which users can transfer network with numbers

According to the scope specified in relevant regulations, number carrying network transfer refers to the service in which the mobile user changes the contracted telecom service operator within the same local telephone range while the number remains unchanged, and each word is constrained by the scope of the service object.

The first is the geographical scope. The number carrying transfer should be completed within the scope of the same local telephone network. That is to say, if the number carrying transfer is needed, the network transfer from Beijing Telecom can only go to Beijing mobile or Beijing Unicom, and it does not support the transfer from Beijing Unicom to Shanghai Telecom or Shanghai Mobile. Why do you have such consideration? Because the ownership of the number determines the identification resolution in the data processing system of the operator management system and technical system, which is an important identity label feature. If the user wants to transfer to the operator, and even the attribute label of the local network needs to be changed, it is a very big challenge for the existing data processing system of the operator. We need to stop using 7 in the network configuration Bit h code is the basic decision principle for user routing, but the whole number should be used as the decision condition for routing delivery, which is very difficult for the data processing system of operators.

The second is the number object, which is the mobile phone users. The public mobile phone users first include fixed line users, Internet users and mobile phone satellite phone users with special application scenarios, which are not within the scope of delineation for the time being. It should be pointed out that the number of mobile resale enterprises is not within the scope of portability.

How to realize the number carrying network transfer

How to promote the number carrying network transfer service in China?

The first layer is the national system architecture. The centralized business management system established by China information and Communication Research Institute is in charge of the construction of the centralized business management system and the coordination of the whole number carrying network transfer service experiment.

What is this system for? How did the data come from? It involves the second and third tier architecture, SOA and LSMs of the operator group company. SOA refers to the service acceptance system of number carrying network transfer. If users want to handle the number carrying network transfer, a series of information interactions from the business side are gradually transmitted by SOA to the centralized business management CSMS, and released through LSMs. What is the purpose of this data? This data will be synchronized to the enterprise network It is used to know which operator this number is transferred from, so as to ensure normal addressing in normal user communication.

To connect the whole process of business, the first thing for a user when carrying is to take out a short message to check whether he is qualified for carrying. If he is qualified for carrying, the operator will send an authorization code to inform the user. The user will take the authorization code to the business hall of the carrying party. Through this three-level system architecture, the user carrying process is fully opened, and the user information can reach all the core network elements of the three operators.

The Institute also plays two other roles. The first is the government’s regulatory support, which collects the whole process of sending and carrying messages and inquiring about the carrying qualification between enterprises and users, and also collects the information of the whole process of carrying and transferring users, so as to restore the whole process of carrying number and transferring network in the regulatory system, so as to better support the policy supervision of carrying and transferring. At the same time, it will also provide the relevant data carried to the relevant public security and information security departments for their supervision of the overall information and communication industry, and provide a basic data escort for the life and property security of the majority of users.

What’s the progress of number carrying network transfer

In December 2019, after the number carrying network transfer service was officially promoted, more than 600000 number carrying network transfers were generated in December. After that, due to the outbreak of the epidemic, the number carrying network transfer will slow down.

Since March, with the normalization of the epidemic situation, the number carrying network transfer user scale has gradually recovered, reaching the level of more than 1 million in July and August. Especially in September, October and November, the number carrying network reached 1.5 million in September, 1.6 million in October, 1.72 million in November, and more than 1 million in the middle of December. At the end of November, the number carrying network was as high as 138656. Why was the number carrying network at the end of November It’s so active because users need to settle their contracts if they want to change from one operator to another.

So far, the cumulative carrying capacity has exceeded 18.5 million. According to the overall scale of August, September and October, we calculated the user size of the portability network after the normalization of the epidemic situation. We made the latest numerical prediction, with an annual portability ratio of more than 1%.

In order to ensure that users can carry, transfer quickly and use well, in the very short period of eight months from March to November last year, three operators carried out large-scale transformation of the system, completed more than 1800 sets of system transformation, and invested more than 3 billion yuan.

Turn fast, turn fast is to solve the problem of difficult to carry users, so that users do not have to be blocked by the enterprise in the carrying out side, so that users can carry freely. Good use is also the most important point that we want to emphasize now. We need to enrich the business and services of users after network transfer, so that users can connect seamlessly after network transfer. The regulatory authorities have also adopted a two handed approach. The first is the requirement for the carrier. When the regulations on the management of the number carrying network transfer were issued, the enterprises were prohibited from refusing to delay the users to provide the number carrying network transfer service without justifiable reasons. Second, from the perspective of carrying in, we must ensure that the number carrying transfer users enjoy the same rights as the new network users under the same conditions.

Editor in charge: GT

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