Time service system and method

Abstract

The embodiment of the invention relates to the technical field of communication systems, in particular to a time service system and method. The time service system comprises an antenna; a receiver arranged adjacent to the antenna and connected with the antenna, and the receiver obtaining standard time service information through the antenna and converting the standard time service information intodigital clock reference source information for transmission; and a local time service device connected with the receiver and used for receiving the digital clock reference source information and providing standard clock information for an external communication system according to the digital clock reference source information. Since the antenna and the receiver are arranged adjacently, and the receiver converts the standard time service information into the digital clock reference source information and then transmits the digital clock reference source information, the transmission path between the antenna and the receiver is very short, the time service deviation caused by a longer coaxial cable is avoided, the standard time service information is converted into the digital clock reference source information for transmission, and the time service precision is greatly improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communication systems, and in particular, to a timing system and method. Background technique [0002] With the rapid development of science and technology and the national economy, various electronic devices are widely used. The clock is the heart of all electronic equipment, including communication equipment. Since the transmission of information in the communication field is realized through frequency division multiplexing and time division multiplexing technology, the accuracy of timing is critical for both transmission efficiency and transmission quality. Various indicators such as speed are very important. Once the clock indicators do not meet the requirements, the communication equipment will be abnormal at least, or paralyzed at worst. [0003] see figure 1 , figure 1 It is a time service scheme based on GNSS satellite positioning system in the prior art. The time serv...

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Problems solved by technology

[0005] In the process of implementing the present invention, the inventors of the present invention found the following problems in the prior art: in the prior art, the synchronization requirements of clock phases of 4G and previous wireless communication systems are us level, as long as the local The timing of the main clock less than 100ns or 50ns can meet the demand, but focusing on the timing requirements of the 5G communication system will reach the ns level, and currently the antenna and the receiver are connected by a long coaxial cable, the coaxial cable The delay has a great impact on the accuracy of local clock timing, therefore, it is particularly necessary to provide a timing system to meet higher timing accuracy

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