Uplink channel dynamic distribution method based on received statistics

Abstract

The invention discloses an uplink channel dynamic distribution method based on received statistics. The problem that the channel use ratio and the distribution bandwidth accuracy of an existing uplink channel distribution method can not meet requirements at the same time is mainly solved. The uplink channel dynamic distribution method includes the implementation steps that it is assumed that a central node and a plurality of slave nodes exist in a network, and a channel is divided into continuous and non-overlapped planning periods, the central node issues planning frames to the slave nodes within each planning period to inform the slave nodes of bandwidth distribution results of the next planning period, the slave nodes transmit report frames to the central node within each planning period, the report frames are used by the central node when the central node distributes the bandwidth of the next planning period, and the central node carries out statistics on the practical use bandwidth of the slave nodes of the prior planning period within each planning period, and carries out channel distribution according to the received statistic result. According to the uplink channel dynamic distribution method, it can be guaranteed that the bandwidth distribution accuracy is improved on the premise that the channel use ratio meets the requirements, and the uplink channel dynamic distribution method can be applied to the fields of various communication local area networks and various communication access networks.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a dynamic allocation method of an uplink channel, which can be applied to various communication local area networks and access network fields. Background technique [0002] In LANs and access networks based on shared media, a central point-to-multipoint logical topology is often used. In this network structure, there is a central node and multiple subordinate nodes, and nodes other than the central node are called subordinate nodes. Data communication can be carried out directly between the central node and the slave nodes. [0003] In the broadcast channel that realizes point-to-multipoint communication, in order to improve the utilization rate of the channel, the method of dynamically allocating bandwidth is usually adopted, and the uplink bandwidth used by each slave node is flexibly allocated according to the corresponding packet scheduling algorithm. Because when the s...

AI Technical Summary

Problems solved by technology

[0006] The dynamic channel allocation of the above two common channel allocation methods provides a simple implementation, but the length selection of the report frame will bring about a balance between channel overhead and channel allocation accuracy

No matter how the length of the report frame is selected, the allocation method cannot meet the requirements of accuracy and channel overhead at the same time

[0007] When a short report frame is used for channel allocation, the length of the report frame is very small, which reduces the channel resources occupied by the transmission control frame and reduces the channel overhead. However, because the simple report frame cannot allow the central node to obtain detailed uplink service information, This makes it impossible for the central node to perform accurate channel planning; when the detailed report frame is used for channel allocation, the central node can obtain detailed uplink business information through the report frame to perform accurate channel allocation, but due to the large length of the detailed report frame, Transmission control frames occupy more channel resources, thus increasing channel overhead

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