中文
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Network access license, full name of telecommunications equipment access license, is a product certification of communication products, mainly for communication terminal equipment, radio communication equipment and telecommunications equipment involved in internetwork interconnection used to access public communication networks.
Here's a detailed explanation of the network access license:
1. Definition and function of network access license: Network access license is a kind of certification carried out by the Ministry of Industry and Information Technology of the People's Republic of China for telecommunications equipment used to access public communication networks. Function: Only telecommunications equipment that has obtained a network access license can be connected to the public telecommunications network for use and domestic sales. This is an important measure to ensure that telecommunications equipment meets national standards and ensures network security and user rights.
2. Application and issuance of network access license: According to Article 54 of the Telecommunications Regulations of the People's Republic of China, those who apply for a telecommunications equipment access permit shall submit an application to the competent department of the information industry under the State Council, and attach the test report issued by the telecommunications equipment testing agency recognized by the product quality supervision department of the State Council or the product quality certification certificate issued by the certification body. Review and issuance: The competent department of the information industry under the State Council shall complete the review of the application and the telecommunications equipment test report or product quality certification certificate within 60 days from the date of receipt of the application for telecommunications equipment access permit. if it passes the review, a network access permit will be issued; If the review is unqualified, a written reply shall be given and the reasons shall be explained.
3. Validity period and query validity period of network access permit: The network access license is generally valid for 3 years, and you need to reapply after expiration. Query: Users can enter a specific code (such as 06) through the mobile phone dialing interface to query the mobile phone's network access license number. For dual-SIM phones, two network access license numbers, 'IMEI1' and 'IMEI2', will appear. In summary, network access licenses are a necessary condition for telecommunications equipment to be connected to public communication networks and sold in China, and are an important means to ensure the quality and network security of telecommunications equipment.
4. What certification needs to be tested?
4.1. RMS phase error;
4.2. Frequency tolerance;
4.3. Power control;
4.4. RF output modulation spectrum;
4.5. Conducted stray emissions;
4.6. Peak phase error;
4.7. Average power;
4.8. Burst time power relationship;
4.9. RF output switching spectrum;
4.10. Static Reference Sensitivity.
4.11. Radiated stray emissions
