Method for obtaining immediate system lime in worldwide interactive microwave access apparatus

Abstract

A method to get the current system time in the global interaction microwave access equipment, includes: sets the time server in the global interaction microwave access MiMAX equipment; the guest room end of the WiMAX equipment sends the information package with the time stamp to the time server; the WiMAX equipment get the current time according to the information package with the time stamp from the time server. The invention can get the more accurate current system time of the user's station and the base station of the WiMAX equipment.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for obtaining current system time in a global interactive microwave access device. Background technique [0002] As important basic physical quantities, time and frequency play an important role in national economy, national defense construction and basic scientific research. Time and frequency are reciprocals of each other, and the measurement benchmark of Chinese time and frequency is preserved in the National Institute of Metrology of China. [0003] The development of the Internet (Internet) has made electronic money, online shopping, online securities, and financial transactions possible. Customers can sit at home and use personal computers to carry out the above activities. To ensure the normal progress of these activities, there must be a unified time. [0004] Many hosts on the network do not have the concept of time, and the time of the hosts can often be changed art...

AI Technical Summary

Problems solved by technology

Therefore, if when the network is busy, there is a delay of 0.5 seconds between the time server sending the time message and the time message being received by a host on the network, then the time synchronization error between them is 0.5 seconds. It is intolerable in a distributed system with strict synchronization time error requirements

[0026] 2. Low accuracy

Therefore, if the time of the time server itself is inaccurate, it will lead to inaccurate time of the hosts in the network

[0028] 3. Low reliability

[0029] In this method, if there is an error in the time server, or a temporary failure occurs in the communication between the host and the time server, the WiMAX device will not be able to obtain the system time

[0030] 4. Small application occasions

[0031] Since the RFC868 time protocol is mainly used in cable TV networks, and the working mode is also single, the application range of this method is relatively small

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