Dynamic bandwidth allocation method of network slice and OLT

A technology of dynamic bandwidth allocation and network slicing, which is applied in multiplexing system selection devices, electrical components, selection devices, etc., can solve the problem of not being able to prioritize bandwidth for high-value slicing users, and not being able to achieve quality of service between slices, Guarantee etc.

Active Publication Date: 2020-07-28
FENGHUO COMM SCI & TECH CO LTD +1
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Problems solved by technology

[0005] However, the quality of service of existing OLT equipment is realized based on physical PON ports, and it is impossible to guarantee the quality of service between slices when multiple slices share PON ports
Specifically, the dynamic bandwidth allocation (DBA) algorithm of the

Method used

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  • Dynamic bandwidth allocation method of network slice and OLT
  • Dynamic bandwidth allocation method of network slice and OLT
  • Dynamic bandwidth allocation method of network slice and OLT

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Embodiment Construction

[0048] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0049] like figure 1 As shown, an embodiment of a dynamic bandwidth allocation method for network slicing is provided, including steps:

[0050] a1. Set the quality of service level of each network slice, and establish the corresponding relationship between T-CONT and network slices.

[0051] Preferably, the quality of service level of the above-mentioned network slice is represented by priority and weight. For example, the priority includes 8 levels of 0 to 7; in this embodiment, the greater the sequence number of the priority, the higher the quality of service level of the corresponding network slice ; In other embodiments, the smaller the sequence number of the priority, the higher the QoS level of the corresponding network slice. For network slices with the same priority, the greater the weight, the higher the service quality level.

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Abstract

A dynamic bandwidth allocation method of network slices and an OLT relate to a DBA method of a PON system, and the method comprises the steps of a1, setting a service quality level of each network slice, and establishing a corresponding relationship with T-CONT; configuring the remaining bandwidth scheduling type of the T-CONT to be none, NA or BE; a2, according to the bandwidth requirement collected in the last DBA period of each T-CONT, allocating the bandwidth of the current DBA period to the network slice, wherein the bandwidth allocated to each T-CONT is not greater than the sum of the fixed bandwidth and the guaranteed bandwidth; a3, if the PON port has the unallocated bandwidth, sequentially meeting the bandwidth requirements of the T-CONT with the remaining bandwidth scheduling type of NA according to the service quality level; and a4, if the PON port still has the unallocated bandwidth, sequentially meeting the bandwidth requirements of the T-CONT with the remaining bandwidthscheduling type of BE according to the service quality level. According to the invention, differentiated quality guarantee services are provided for different network slice users.

Description

technical field [0001] The present invention relates to a dynamic bandwidth allocation (Dynamic Bandwidth Allocation, DBA) method for a passive optical network (Passive Optical Network, PON) system, specifically a dynamic bandwidth allocation method for network slicing and an OLT. Background technique [0002] The PON access network is an all-optical access network with a point-to-multipoint structure. It adopts passive optical fiber transmission and can carry multiple services such as data, voice and video at the same time. Its main components are optical line terminal (Optical LineTerminal, OLT), optical network unit (Optical Network Unit, ONU) and optical distribution network ( OpticalDistribution Network, ODN) composition. [0003] Due to the point-to-multipoint feature of the PON access network, the PON network is regarded as a very economical access technology and has been widely welcomed. The operator can access multiple ONUs through the ODN under one PON port, and ...

Claims

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Application Information

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IPC IPC(8): H04Q11/00
CPCH04Q11/0062H04Q11/0067H04Q2011/0086
Inventor 吴浩
Owner FENGHUO COMM SCI & TECH CO LTD
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