Time slot allocation method for dynamic polling protocol

Abstract

The invention discloses a time slot allocation method for a dynamic polling protocol. In the method, a master station broadcasts master station service information through a master station service time slot and broadcasts distribution information of a time slot through a sentinel station; the sentinel station broadcasts service time slot application information through the sentinel station broadcast time slot; the master station compares the priority levels of the sentinel stations according to the principle that a command and control platform is superior to a non-command and control platform,a high service information updating rate is superior to a low service information updating rate, and a short service data length is superior to a long service data length; service time slots are allocated to the sentinel stations in sequence according to a priority level sequence, and broadcasting is performed through channel allocation time slots; and the sentinel station broadcasts service information through a service frame according to the sentinel station service time slot allocated by the master station. According to the invention, the real-time performance of sending information by thesentinel station in the network is improved, the information sending requirements of high-grade users in the network are effectively met, and the flexible network access of a new platform is realized.

Description

technical field [0001] The invention relates to a time slot allocation method in a wireless digital communication network, in particular to a time slot allocation method used in a dynamic polling protocol in a wireless digital communication network. Background technique [0002] The wireless digital communication network provides a convenient way for multiple users to carry out information exchange and collaborative operation. Transmission medium, channel access method and network topology are the key technologies for wireless communication network to complete information exchange. Among them, the channel access method has an important impact on the network performance of the wireless communication network. The core of the problem solving is to enable users in the network to coordinate and arrange the use of channel resources to achieve conflict-free information exchange. [0003] Using time-division multiplexing to share channel resources and realize information interactio...

AI Technical Summary

Problems solved by technology

There are two disadvantages in this channel access mechanism: First, the probability of the master station sending an inquiry message is far greater than the probability of an outpost sending a response message. The ratio multiple of the information probability is equal to the number of outposts in the network; secondly, because the response information sent by the outposts depends on the inquiry from the master station, they are completely passive. When the query information of the outpost is sent, it will cause the outpost to be unable to send the response information for a long time

The existence of the above disadvantages makes it difficult to guarantee the real-time information transmission of outposts in the network, thus affecting the information interaction and collaborative operation among network members

In addition, in the existing polling channel access method, it is impossible to realize the random access of new members to the network, and the network flexibility is poor. However, the scenario situation of wireless communication network applications changes in real time, and it is difficult to adjust the network in real time according to the needs of practical scenarios. Member composition, resulting in weak adaptability to the scenario application of this channel access method