Channel bank-based bandwidth allocation method

Abstract

The invention discloses a channel bank-based bandwidth allocation method, which comprises the following steps: determining the service request level; allocating all channels to a plurality of channel banks according to the size of residual bandwidth of each channel; selecting a channel bank from the plurality of channel banks, judging whether the selected channel bank has a proper channel for allocation until a proper bandwidth is allocated for the service, wherein all the channels are allocated to the channel banks according to the size of the residual bandwidth of the channels; the channel bank has a serial number; the serial number of the channel bank to which a certain channel belongs is equal to a value that the residual bandwidth of the channel divides exactly the needed bandwidth of the highest-level service. Firstly, a channel bank is selected from the larger one to the smaller one according to the serial number of the channel banks, and then, a channel is selected from the interior of the channel bank. When the channel is selected from the interior of the channel bank, the channel with the residual bandwidth of zero is selected for the high-level service, and the channel with the residual bandwidth of more than or equal to the needed bandwidth of the service is selected for the low-level service according to the order from the smaller residual bandwidth to the larger residual bandwidth.

Description

technical field [0001] The invention relates to the field of resource management, in particular to a channel group-based bandwidth allocation method. Background technique [0002] At present, the services provided by operators are generally graded. For example, in the field of video-on-demand, high-definition service and standard-definition service are two different grades of service. With the improvement of service level, the bandwidth occupied by the service is also higher and higher. Generally speaking, operators will use multiple channels with fixed bandwidth to provide users with these services. With the continuous expansion of the operator's scale, especially the continuous increase of high-level services, the operator's demand for effective use of channel bandwidth is becoming stronger and stronger. At the same time, since multiple channels are used to provide services, in order to avoid the loss of a large number of service requests caused by the failure of a certa...

AI Technical Summary

Problems solved by technology

The minimum load allocation method directly selects the channel with the minimum load for service requests. This method can provide good load balancing, but this method does not consider the impact of different bandwidth requirements for different levels of service requests on performance. Fragmented bandwidth that is not effectively utilized

The maximum load distribution method directly selects the channel with the maximum load for service requests. This method concentrates service requests on channels with higher loads, can reduce fragmented bandwidth, and can provide better service quality than the minimum load distribution method. However, this method Load balancing is not considered. If a channel fails, a large number of sessions will be lost

At the same time, the above-mentioned minimum load distribution method and maximum load distribution method are designed for single-level service systems, and are not suitable for systems with multiple service levels

[0004] Therefore, the commonly used bandwidth allocation method has been unable to meet the operator's higher requirements for effective management of service channels and channel bandwidth, and a new bandwidth allocation method that can overcome the above shortcomings is needed

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